From: Chet Ramey Date: Sat, 3 Dec 2011 17:57:34 +0000 (-0500) Subject: commit bash-20040512 snapshot X-Git-Tag: bash-3.0-rc1~4 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f085a21f5f87647612c419b07ccec6810b45f079;p=thirdparty%2Fbash.git commit bash-20040512 snapshot --- diff --git a/CHANGES b/CHANGES index 25e46370e..81ef31842 100644 --- a/CHANGES +++ b/CHANGES @@ -17,6 +17,56 @@ d. Fixed a bug that caused `pwd' to not display anything in physical mode e. Fixed a bug in the pre- and post- increment and decrement parsing in the expression evaluator that caused errors when the operands and corresponding operators were separated by whitespace. + +f. Fixed a bug that caused `history -p' to add an entry to the history list, + counter to the documentation. (Keeps the history expansions invoked by + emacs-mode command line editing from doing that as well.) + +g. Fixed a bug that could cause a core dump if `cd' is asked to print out a + pathname longer than PATH_MAX characters. + +h. Fixed a bug that caused jobs to be put into the wrong process group under + some circumstances after enabling job control with `set -m'. + +i. `unalias' now returns failure if no alias name arguments are supplied. + +j. Documented the characters not allowed to appear in an alias name. + +k. $* is no longer expanded as if in double quotes when it appears in the + body of a here document, as the SUS seems to require. + +l. The `bashbug' script now uses a directory in $TMPDIR for exclusive + access rather than trying to guess how the underlying OS provides for + secure temporary file creation. + +m. Fixed a few problems with `cd' and `pwd' when asked to operate on pathnames + longer than PATH_MAX characters. + +n. Fixed a memory leak caused when creating multiple local array variables + with identical names. + +2. Changes to Readline + +a. Fixed a problem that could cause readline to refer to freed memory when + moving between history lines while doing searches. + +b. Improvements to the code that expands and displays prompt strings + containing multibyte characters. + +c. Fixed a problem with vi-mode not correctly remembering the numeric argument + to the last `c'hange command for later use with `.'. + +d. Fixed a bug in vi-mode that caused multi-digit count arguments to work + incorrectly. + +e. Fixed a problem in vi-mode that caused the last text modification command + to not be remembered across different command lines. + +3. New Features in Bash + +a. The `jobs', `kill', and `wait' builtins now accept job control notation + even if job control is not enabled. + ------------------------------------------------------------------------------ This document details the changes between this version, bash-3.0-beta1, and the previous version, bash-3.0-alpha. diff --git a/CWRU/CWRU.chlog b/CWRU/CWRU.chlog index a4eaf3d40..150381f50 100644 --- a/CWRU/CWRU.chlog +++ b/CWRU/CWRU.chlog @@ -9329,7 +9329,7 @@ builtins/cd.def 4/12 ---- print_cmd.c - - new functionto print out assignment statements when `set -x' has + - new function to print out assignment statements when `set -x' has been enabled: xtrace_print_assignment externs.h @@ -9448,4 +9448,13 @@ lib/readline/text.c (_rl_vi_last_command) is not a text modification command. This lets the last-command and last-argument work across command lines + 5/13 + ---- +builtins/common.c + - use getcwd(0,0) rather than providing a fixed pathname with a fixed + length (PATH_MAX) so getcwd() will allocate sufficient memory +aclocal.m4 + - change BASH_FUNC_GETCWD to check whether or not getcwd(0,0) will + allocate memory for the returned value -- nobody implements that + and getcwd-via-popen, so it should capture the old test as well diff --git a/CWRU/CWRU.chlog~ b/CWRU/CWRU.chlog~ index df0ad40c0..d4e2904a7 100644 --- a/CWRU/CWRU.chlog~ +++ b/CWRU/CWRU.chlog~ @@ -9329,7 +9329,7 @@ builtins/cd.def 4/12 ---- print_cmd.c - - new functionto print out assignment statements when `set -x' has + - new function to print out assignment statements when `set -x' has been enabled: xtrace_print_assignment externs.h @@ -9445,5 +9445,16 @@ lib/readline/rlprivate.h lib/readline/text.c - change rl_newline to only call _rl_vi_reset_last if the last command - (_rl_vi_last_command) is not a text modification command + (_rl_vi_last_command) is not a text modification command. This lets + the last-command and last-argument work across command lines + 5/13 + ---- +builtins/common.c + - use getcwd(0,0) rather than providing a fixed pathname with a fixed + length (PATH_MAX) + +aclocal.m4 + - change BASH_FUNC_GETCWD to check whether or not getcwd(0,0) will + allocate memory for the returned value -- nobody implements that + and getcwd-via-popen diff --git a/NEWS b/NEWS index 1011173b9..f71169351 100644 --- a/NEWS +++ b/NEWS @@ -137,6 +137,9 @@ nn. The parameter pattern removal and substitution expansions are now much oo. Fixed a bug in the `shift' builtin that could cause core dumps when reporting an out-of-range argument. +pp. The `jobs', `kill', and `wait' builtins now accept job control notation + even if job control is not enabled. + 2. New Features in Readline a. History expansion has a new `a' modifier equivalent to the `g' modifier diff --git a/aclocal.m4 b/aclocal.m4 index 90b66c714..9d2ed5442 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -685,65 +685,26 @@ fi ]) AC_DEFUN(BASH_FUNC_GETCWD, -[AC_MSG_CHECKING([if getcwd() calls popen()]) -AC_CACHE_VAL(bash_cv_getcwd_calls_popen, +[AC_MSG_CHECKING([if getcwd() will dynamically allocate memory]) +AC_CACHE_VAL(bash_cv_getcwd_malloc, [AC_TRY_RUN([ #include #ifdef HAVE_UNISTD_H #include #endif -#ifndef __STDC__ -#ifndef const -#define const -#endif -#endif - -int popen_called; - -FILE * -popen(command, type) - const char *command; - const char *type; -{ - popen_called = 1; - return (FILE *)NULL; -} - -FILE *_popen(command, type) - const char *command; - const char *type; -{ - return (popen (command, type)); -} - -int -pclose(stream) -FILE *stream; -{ - return 0; -} - -int -_pclose(stream) -FILE *stream; -{ - return 0; -} - main() { - char lbuf[32]; - popen_called = 0; - getcwd(lbuf, 32); - exit (popen_called); + char *xpwd; + xpwd = getcwd(0, 0); + exit (xpwd == 0); } -], bash_cv_getcwd_calls_popen=no, bash_cv_getcwd_calls_popen=yes, - [AC_MSG_WARN(cannot check whether getcwd calls popen if cross compiling -- defaulting to no) - bash_cv_getcwd_calls_popen=no] +], bash_cv_getcwd_malloc=yes, bash_cv_getcwd_malloc=no, + [AC_MSG_WARN(cannot check whether getcwd allocates memory when cross-compiling -- defaulting to no) + bash_cv_getcwd_malloc=no] )]) -AC_MSG_RESULT($bash_cv_getcwd_calls_popen) -if test $bash_cv_getcwd_calls_popen = yes; then +AC_MSG_RESULT($bash_cv_getcwd_malloc) +if test $bash_cv_getcwd_malloc = no; then AC_DEFINE(GETCWD_BROKEN) AC_LIBOBJ(getcwd) fi diff --git a/aclocal.m4.orig b/aclocal.m4.orig new file mode 100644 index 000000000..90b66c714 --- /dev/null +++ b/aclocal.m4.orig @@ -0,0 +1,3952 @@ +dnl +dnl Bash specific tests +dnl +dnl Some derived from PDKSH 5.1.3 autoconf tests +dnl + +AC_DEFUN(BASH_C_LONG_LONG, +[AC_CACHE_CHECK(for long long, ac_cv_c_long_long, +[if test "$GCC" = yes; then + ac_cv_c_long_long=yes +else +AC_TRY_RUN([ +int +main() +{ +long long foo = 0; +exit(sizeof(long long) < sizeof(long)); +} +], ac_cv_c_long_long=yes, ac_cv_c_long_long=no) +fi]) +if test $ac_cv_c_long_long = yes; then + AC_DEFINE(HAVE_LONG_LONG, 1, [Define if the `long long' type works.]) +fi +]) + +dnl +dnl This is very similar to AC_C_LONG_DOUBLE, with the fix for IRIX +dnl (< changed to <=) added. +dnl +AC_DEFUN(BASH_C_LONG_DOUBLE, +[AC_CACHE_CHECK(for long double, ac_cv_c_long_double, +[if test "$GCC" = yes; then + ac_cv_c_long_double=yes +else +AC_TRY_RUN([ +int +main() +{ + /* The Stardent Vistra knows sizeof(long double), but does not + support it. */ + long double foo = 0.0; + /* On Ultrix 4.3 cc, long double is 4 and double is 8. */ + /* On IRIX 5.3, the compiler converts long double to double with a warning, + but compiles this successfully. */ + exit(sizeof(long double) <= sizeof(double)); +} +], ac_cv_c_long_double=yes, ac_cv_c_long_double=no) +fi]) +if test $ac_cv_c_long_double = yes; then + AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if the `long double' type works.]) +fi +]) + +dnl +dnl Check for . This is separated out so that it can be +dnl AC_REQUIREd. +dnl +dnl BASH_HEADER_INTTYPES +AC_DEFUN(BASH_HEADER_INTTYPES, +[ + AC_CHECK_HEADERS(inttypes.h) +]) + +dnl +dnl check for typedef'd symbols in header files, but allow the caller to +dnl specify the include files to be checked in addition to the default +dnl +dnl BASH_CHECK_TYPE(TYPE, HEADERS, DEFAULT[, VALUE-IF-FOUND]) +AC_DEFUN(BASH_CHECK_TYPE, +[ +AC_REQUIRE([AC_HEADER_STDC])dnl +AC_REQUIRE([BASH_HEADER_INTTYPES]) +AC_MSG_CHECKING(for $1) +AC_CACHE_VAL(bash_cv_type_$1, +[AC_EGREP_CPP($1, [#include +#if STDC_HEADERS +#include +#include +#endif +#if HAVE_INTTYPES_H +#include +#endif +$2 +], bash_cv_type_$1=yes, bash_cv_type_$1=no)]) +AC_MSG_RESULT($bash_cv_type_$1) +ifelse($#, 4, [if test $bash_cv_type_$1 = yes; then + AC_DEFINE($4) + fi]) +if test $bash_cv_type_$1 = no; then + AC_DEFINE_UNQUOTED($1, $3) +fi +]) + +dnl +dnl BASH_CHECK_DECL(FUNC) +dnl +dnl Check for a declaration of FUNC in stdlib.h and inttypes.h like +dnl AC_CHECK_DECL +dnl +AC_DEFUN(BASH_CHECK_DECL, +[ +AC_REQUIRE([AC_HEADER_STDC]) +AC_REQUIRE([BASH_HEADER_INTTYPES]) +AC_CACHE_CHECK([for declaration of $1], bash_cv_decl_$1, +[AC_TRY_LINK( +[ +#if STDC_HEADERS +# include +#endif +#if HAVE_INTTYPES_H +# include +#endif +], +[return !$1;], +bash_cv_decl_$1=yes, bash_cv_decl_$1=no)]) +bash_tr_func=HAVE_DECL_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` +if test $bash_cv_decl_$1 = yes; then + AC_DEFINE_UNQUOTED($bash_tr_func, 1) +else + AC_DEFINE_UNQUOTED($bash_tr_func, 0) +fi +]) + +AC_DEFUN(BASH_DECL_PRINTF, +[AC_MSG_CHECKING(for declaration of printf in ) +AC_CACHE_VAL(bash_cv_printf_declared, +[AC_TRY_RUN([ +#include +#ifdef __STDC__ +typedef int (*_bashfunc)(const char *, ...); +#else +typedef int (*_bashfunc)(); +#endif +main() +{ +_bashfunc pf; +pf = (_bashfunc) printf; +exit(pf == 0); +} +], bash_cv_printf_declared=yes, bash_cv_printf_declared=no, + [AC_MSG_WARN(cannot check printf declaration if cross compiling -- defaulting to yes) + bash_cv_printf_declared=yes] +)]) +AC_MSG_RESULT($bash_cv_printf_declared) +if test $bash_cv_printf_declared = yes; then +AC_DEFINE(PRINTF_DECLARED) +fi +]) + +AC_DEFUN(BASH_DECL_SBRK, +[AC_MSG_CHECKING(for declaration of sbrk in ) +AC_CACHE_VAL(bash_cv_sbrk_declared, +[AC_EGREP_HEADER(sbrk, unistd.h, + bash_cv_sbrk_declared=yes, bash_cv_sbrk_declared=no)]) +AC_MSG_RESULT($bash_cv_sbrk_declared) +if test $bash_cv_sbrk_declared = yes; then +AC_DEFINE(SBRK_DECLARED) +fi +]) + +dnl +dnl Check for sys_siglist[] or _sys_siglist[] +dnl +AC_DEFUN(BASH_DECL_UNDER_SYS_SIGLIST, +[AC_MSG_CHECKING([for _sys_siglist in signal.h or unistd.h]) +AC_CACHE_VAL(bash_cv_decl_under_sys_siglist, +[AC_TRY_COMPILE([ +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif], [ char *msg = _sys_siglist[2]; ], + bash_cv_decl_under_sys_siglist=yes, bash_cv_decl_under_sys_siglist=no, + [AC_MSG_WARN(cannot check for _sys_siglist[] if cross compiling -- defaulting to no)])])dnl +AC_MSG_RESULT($bash_cv_decl_under_sys_siglist) +if test $bash_cv_decl_under_sys_siglist = yes; then +AC_DEFINE(UNDER_SYS_SIGLIST_DECLARED) +fi +]) + +AC_DEFUN(BASH_UNDER_SYS_SIGLIST, +[AC_REQUIRE([BASH_DECL_UNDER_SYS_SIGLIST]) +AC_MSG_CHECKING([for _sys_siglist in system C library]) +AC_CACHE_VAL(bash_cv_under_sys_siglist, +[AC_TRY_RUN([ +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif +#ifndef UNDER_SYS_SIGLIST_DECLARED +extern char *_sys_siglist[]; +#endif +main() +{ +char *msg = (char *)_sys_siglist[2]; +exit(msg == 0); +}], + bash_cv_under_sys_siglist=yes, bash_cv_under_sys_siglist=no, + [AC_MSG_WARN(cannot check for _sys_siglist[] if cross compiling -- defaulting to no) + bash_cv_under_sys_siglist=no])]) +AC_MSG_RESULT($bash_cv_under_sys_siglist) +if test $bash_cv_under_sys_siglist = yes; then +AC_DEFINE(HAVE_UNDER_SYS_SIGLIST) +fi +]) + +AC_DEFUN(BASH_SYS_SIGLIST, +[AC_REQUIRE([AC_DECL_SYS_SIGLIST]) +AC_MSG_CHECKING([for sys_siglist in system C library]) +AC_CACHE_VAL(bash_cv_sys_siglist, +[AC_TRY_RUN([ +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif +#ifndef SYS_SIGLIST_DECLARED +extern char *sys_siglist[]; +#endif +main() +{ +char *msg = sys_siglist[2]; +exit(msg == 0); +}], + bash_cv_sys_siglist=yes, bash_cv_sys_siglist=no, + [AC_MSG_WARN(cannot check for sys_siglist if cross compiling -- defaulting to no) + bash_cv_sys_siglist=no])]) +AC_MSG_RESULT($bash_cv_sys_siglist) +if test $bash_cv_sys_siglist = yes; then +AC_DEFINE(HAVE_SYS_SIGLIST) +fi +]) + +dnl Check for the various permutations of sys_siglist and make sure we +dnl compile in siglist.o if they're not defined +AC_DEFUN(BASH_CHECK_SYS_SIGLIST, [ +AC_REQUIRE([BASH_SYS_SIGLIST]) +AC_REQUIRE([BASH_DECL_UNDER_SYS_SIGLIST]) +AC_REQUIRE([BASH_FUNC_STRSIGNAL]) +if test "$bash_cv_sys_siglist" = no && test "$bash_cv_under_sys_siglist" = no && test "$bash_cv_have_strsignal" = no; then + SIGLIST_O=siglist.o +else + SIGLIST_O= +fi +AC_SUBST([SIGLIST_O]) +]) + +dnl Check for sys_errlist[] and sys_nerr, check for declaration +AC_DEFUN(BASH_SYS_ERRLIST, +[AC_MSG_CHECKING([for sys_errlist and sys_nerr]) +AC_CACHE_VAL(bash_cv_sys_errlist, +[AC_TRY_LINK([#include ], +[extern char *sys_errlist[]; + extern int sys_nerr; + char *msg = sys_errlist[sys_nerr - 1];], + bash_cv_sys_errlist=yes, bash_cv_sys_errlist=no)])dnl +AC_MSG_RESULT($bash_cv_sys_errlist) +if test $bash_cv_sys_errlist = yes; then +AC_DEFINE(HAVE_SYS_ERRLIST) +fi +]) + +dnl +dnl Check if dup2() does not clear the close on exec flag +dnl +AC_DEFUN(BASH_FUNC_DUP2_CLOEXEC_CHECK, +[AC_MSG_CHECKING(if dup2 fails to clear the close-on-exec flag) +AC_CACHE_VAL(bash_cv_dup2_broken, +[AC_TRY_RUN([ +#include +#include +main() +{ + int fd1, fd2, fl; + fd1 = open("/dev/null", 2); + if (fcntl(fd1, 2, 1) < 0) + exit(1); + fd2 = dup2(fd1, 1); + if (fd2 < 0) + exit(2); + fl = fcntl(fd2, 1, 0); + /* fl will be 1 if dup2 did not reset the close-on-exec flag. */ + exit(fl != 1); +} +], bash_cv_dup2_broken=yes, bash_cv_dup2_broken=no, + [AC_MSG_WARN(cannot check dup2 if cross compiling -- defaulting to no) + bash_cv_dup2_broken=no]) +]) +AC_MSG_RESULT($bash_cv_dup2_broken) +if test $bash_cv_dup2_broken = yes; then +AC_DEFINE(DUP2_BROKEN) +fi +]) + +AC_DEFUN(BASH_FUNC_STRSIGNAL, +[AC_MSG_CHECKING([for the existence of strsignal]) +AC_CACHE_VAL(bash_cv_have_strsignal, +[AC_TRY_LINK([#include +#include ], +[char *s = (char *)strsignal(2);], + bash_cv_have_strsignal=yes, bash_cv_have_strsignal=no)]) +AC_MSG_RESULT($bash_cv_have_strsignal) +if test $bash_cv_have_strsignal = yes; then +AC_DEFINE(HAVE_STRSIGNAL) +fi +]) + +dnl Check to see if opendir will open non-directories (not a nice thing) +AC_DEFUN(BASH_FUNC_OPENDIR_CHECK, +[AC_REQUIRE([AC_HEADER_DIRENT])dnl +AC_MSG_CHECKING(if opendir() opens non-directories) +AC_CACHE_VAL(bash_cv_opendir_not_robust, +[AC_TRY_RUN([ +#include +#include +#include +#ifdef HAVE_UNISTD_H +# include +#endif /* HAVE_UNISTD_H */ +#if defined(HAVE_DIRENT_H) +# include +#else +# define dirent direct +# ifdef HAVE_SYS_NDIR_H +# include +# endif /* SYSNDIR */ +# ifdef HAVE_SYS_DIR_H +# include +# endif /* SYSDIR */ +# ifdef HAVE_NDIR_H +# include +# endif +#endif /* HAVE_DIRENT_H */ +main() +{ +DIR *dir; +int fd, err; +err = mkdir("/tmp/bash-aclocal", 0700); +if (err < 0) { + perror("mkdir"); + exit(1); +} +unlink("/tmp/bash-aclocal/not_a_directory"); +fd = open("/tmp/bash-aclocal/not_a_directory", O_WRONLY|O_CREAT|O_EXCL, 0666); +write(fd, "\n", 1); +close(fd); +dir = opendir("/tmp/bash-aclocal/not_a_directory"); +unlink("/tmp/bash-aclocal/not_a_directory"); +rmdir("/tmp/bash-aclocal"); +exit (dir == 0); +}], bash_cv_opendir_not_robust=yes,bash_cv_opendir_not_robust=no, + [AC_MSG_WARN(cannot check opendir if cross compiling -- defaulting to no) + bash_cv_opendir_not_robust=no] +)]) +AC_MSG_RESULT($bash_cv_opendir_not_robust) +if test $bash_cv_opendir_not_robust = yes; then +AC_DEFINE(OPENDIR_NOT_ROBUST) +fi +]) + +dnl +AC_DEFUN(BASH_TYPE_SIGHANDLER, +[AC_MSG_CHECKING([whether signal handlers are of type void]) +AC_CACHE_VAL(bash_cv_void_sighandler, +[AC_TRY_COMPILE([#include +#include +#ifdef signal +#undef signal +#endif +#ifdef __cplusplus +extern "C" +#endif +void (*signal ()) ();], +[int i;], bash_cv_void_sighandler=yes, bash_cv_void_sighandler=no)])dnl +AC_MSG_RESULT($bash_cv_void_sighandler) +if test $bash_cv_void_sighandler = yes; then +AC_DEFINE(VOID_SIGHANDLER) +fi +]) + +dnl +dnl A signed 16-bit integer quantity +dnl +AC_DEFUN(BASH_TYPE_BITS16_T, +[ +if test "$ac_cv_sizeof_short" = 2; then + AC_CHECK_TYPE(bits16_t, short) +elif test "$ac_cv_sizeof_char" = 2; then + AC_CHECK_TYPE(bits16_t, char) +else + AC_CHECK_TYPE(bits16_t, short) +fi +]) + +dnl +dnl An unsigned 16-bit integer quantity +dnl +AC_DEFUN(BASH_TYPE_U_BITS16_T, +[ +if test "$ac_cv_sizeof_short" = 2; then + AC_CHECK_TYPE(u_bits16_t, unsigned short) +elif test "$ac_cv_sizeof_char" = 2; then + AC_CHECK_TYPE(u_bits16_t, unsigned char) +else + AC_CHECK_TYPE(u_bits16_t, unsigned short) +fi +]) + +dnl +dnl A signed 32-bit integer quantity +dnl +AC_DEFUN(BASH_TYPE_BITS32_T, +[ +if test "$ac_cv_sizeof_int" = 4; then + AC_CHECK_TYPE(bits32_t, int) +elif test "$ac_cv_sizeof_long" = 4; then + AC_CHECK_TYPE(bits32_t, long) +else + AC_CHECK_TYPE(bits32_t, int) +fi +]) + +dnl +dnl An unsigned 32-bit integer quantity +dnl +AC_DEFUN(BASH_TYPE_U_BITS32_T, +[ +if test "$ac_cv_sizeof_int" = 4; then + AC_CHECK_TYPE(u_bits32_t, unsigned int) +elif test "$ac_cv_sizeof_long" = 4; then + AC_CHECK_TYPE(u_bits32_t, unsigned long) +else + AC_CHECK_TYPE(u_bits32_t, unsigned int) +fi +]) + +AC_DEFUN(BASH_TYPE_PTRDIFF_T, +[ +if test "$ac_cv_sizeof_int" = "$ac_cv_sizeof_char_p"; then + AC_CHECK_TYPE(ptrdiff_t, int) +elif test "$ac_cv_sizeof_long" = "$ac_cv_sizeof_char_p"; then + AC_CHECK_TYPE(ptrdiff_t, long) +elif test "$ac_cv_type_long_long" = yes && test "$ac_cv_sizeof_long_long" = "$ac_cv_sizeof_char_p"; then + AC_CHECK_TYPE(ptrdiff_t, [long long]) +else + AC_CHECK_TYPE(ptrdiff_t, int) +fi +]) + +dnl +dnl A signed 64-bit quantity +dnl +AC_DEFUN(BASH_TYPE_BITS64_T, +[ +if test "$ac_cv_sizeof_char_p" = 8; then + AC_CHECK_TYPE(bits64_t, char *) +elif test "$ac_cv_sizeof_double" = 8; then + AC_CHECK_TYPE(bits64_t, double) +elif test -n "$ac_cv_type_long_long" && test "$ac_cv_sizeof_long_long" = 8; then + AC_CHECK_TYPE(bits64_t, [long long]) +elif test "$ac_cv_sizeof_long" = 8; then + AC_CHECK_TYPE(bits64_t, long) +else + AC_CHECK_TYPE(bits64_t, double) +fi +]) + +AC_DEFUN(BASH_TYPE_LONG_LONG, +[ +AC_CACHE_CHECK([for long long], bash_cv_type_long_long, +[AC_TRY_LINK([ +long long ll = 1; int i = 63;], +[ +long long llm = (long long) -1; +return ll << i | ll >> i | llm / ll | llm % ll; +], bash_cv_type_long_long='long long', bash_cv_type_long_long='long')]) +if test "$bash_cv_type_long_long" = 'long long'; then + AC_DEFINE(HAVE_LONG_LONG, 1) +fi +]) + +AC_DEFUN(BASH_TYPE_UNSIGNED_LONG_LONG, +[ +AC_CACHE_CHECK([for unsigned long long], bash_cv_type_unsigned_long_long, +[AC_TRY_LINK([ +unsigned long long ull = 1; int i = 63;], +[ +unsigned long long ullmax = (unsigned long long) -1; +return ull << i | ull >> i | ullmax / ull | ullmax % ull; +], bash_cv_type_unsigned_long_long='unsigned long long', + bash_cv_type_unsigned_long_long='unsigned long')]) +if test "$bash_cv_type_unsigned_long_long" = 'unsigned long long'; then + AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1) +fi +]) + +dnl +dnl Type of struct rlimit fields: some systems (OSF/1, NetBSD, RISC/os 5.0) +dnl have a rlim_t, others (4.4BSD based systems) use quad_t, others use +dnl long and still others use int (HP-UX 9.01, SunOS 4.1.3). To simplify +dnl matters, this just checks for rlim_t, quad_t, or long. +dnl +AC_DEFUN(BASH_TYPE_RLIMIT, +[AC_MSG_CHECKING(for size and type of struct rlimit fields) +AC_CACHE_VAL(bash_cv_type_rlimit, +[AC_TRY_COMPILE([#include +#include ], +[rlim_t xxx;], bash_cv_type_rlimit=rlim_t,[ +AC_TRY_RUN([ +#include +#include +#include +main() +{ +#ifdef HAVE_QUAD_T + struct rlimit rl; + if (sizeof(rl.rlim_cur) == sizeof(quad_t)) + exit(0); +#endif + exit(1); +}], bash_cv_type_rlimit=quad_t, bash_cv_type_rlimit=long, + [AC_MSG_WARN(cannot check quad_t if cross compiling -- defaulting to long) + bash_cv_type_rlimit=long])]) +]) +AC_MSG_RESULT($bash_cv_type_rlimit) +if test $bash_cv_type_rlimit = quad_t; then +AC_DEFINE(RLIMTYPE, quad_t) +elif test $bash_cv_type_rlimit = rlim_t; then +AC_DEFINE(RLIMTYPE, rlim_t) +fi +]) + +AC_DEFUN(BASH_FUNC_LSTAT, +[dnl Cannot use AC_CHECK_FUNCS(lstat) because Linux defines lstat() as an +dnl inline function in . +AC_CACHE_CHECK([for lstat], bash_cv_func_lstat, +[AC_TRY_LINK([ +#include +#include +],[ lstat(".",(struct stat *)0); ], +bash_cv_func_lstat=yes, bash_cv_func_lstat=no)]) +if test $bash_cv_func_lstat = yes; then + AC_DEFINE(HAVE_LSTAT) +fi +]) + +AC_DEFUN(BASH_FUNC_INET_ATON, +[ +AC_CACHE_CHECK([for inet_aton], bash_cv_func_inet_aton, +[AC_TRY_LINK([ +#include +#include +#include +struct in_addr ap;], [ inet_aton("127.0.0.1", &ap); ], +bash_cv_func_inet_aton=yes, bash_cv_func_inet_aton=no)]) +if test $bash_cv_func_inet_aton = yes; then + AC_DEFINE(HAVE_INET_ATON) +else + AC_LIBOBJ(inet_aton) +fi +]) + +AC_DEFUN(BASH_FUNC_GETENV, +[AC_MSG_CHECKING(to see if getenv can be redefined) +AC_CACHE_VAL(bash_cv_getenv_redef, +[AC_TRY_RUN([ +#ifdef HAVE_UNISTD_H +# include +#endif +#ifndef __STDC__ +# ifndef const +# define const +# endif +#endif +char * +getenv (name) +#if defined (__linux__) || defined (__bsdi__) || defined (convex) + const char *name; +#else + char const *name; +#endif /* !__linux__ && !__bsdi__ && !convex */ +{ +return "42"; +} +main() +{ +char *s; +/* The next allows this program to run, but does not allow bash to link + when it redefines getenv. I'm not really interested in figuring out + why not. */ +#if defined (NeXT) +exit(1); +#endif +s = getenv("ABCDE"); +exit(s == 0); /* force optimizer to leave getenv in */ +} +], bash_cv_getenv_redef=yes, bash_cv_getenv_redef=no, + [AC_MSG_WARN(cannot check getenv redefinition if cross compiling -- defaulting to yes) + bash_cv_getenv_redef=yes] +)]) +AC_MSG_RESULT($bash_cv_getenv_redef) +if test $bash_cv_getenv_redef = yes; then +AC_DEFINE(CAN_REDEFINE_GETENV) +fi +]) + +# We should check for putenv before calling this +AC_DEFUN(BASH_FUNC_STD_PUTENV, +[ +AC_REQUIRE([AC_HEADER_STDC]) +AC_REQUIRE([AC_C_PROTOTYPES]) +AC_CACHE_CHECK([for standard-conformant putenv declaration], bash_cv_std_putenv, +[AC_TRY_LINK([ +#if STDC_HEADERS +#include +#include +#endif +#ifndef __STDC__ +# ifndef const +# define const +# endif +#endif +#ifdef PROTOTYPES +extern int putenv (char *); +#else +extern int putenv (); +#endif +], +[return (putenv == 0);], +bash_cv_std_putenv=yes, bash_cv_std_putenv=no +)]) +if test $bash_cv_std_putenv = yes; then +AC_DEFINE(HAVE_STD_PUTENV) +fi +]) + +# We should check for unsetenv before calling this +AC_DEFUN(BASH_FUNC_STD_UNSETENV, +[ +AC_REQUIRE([AC_HEADER_STDC]) +AC_REQUIRE([AC_C_PROTOTYPES]) +AC_CACHE_CHECK([for standard-conformant unsetenv declaration], bash_cv_std_unsetenv, +[AC_TRY_LINK([ +#if STDC_HEADERS +#include +#include +#endif +#ifndef __STDC__ +# ifndef const +# define const +# endif +#endif +#ifdef PROTOTYPES +extern int unsetenv (const char *); +#else +extern int unsetenv (); +#endif +], +[return (unsetenv == 0);], +bash_cv_std_unsetenv=yes, bash_cv_std_unsetenv=no +)]) +if test $bash_cv_std_unsetenv = yes; then +AC_DEFINE(HAVE_STD_UNSETENV) +fi +]) + +AC_DEFUN(BASH_FUNC_ULIMIT_MAXFDS, +[AC_MSG_CHECKING(whether ulimit can substitute for getdtablesize) +AC_CACHE_VAL(bash_cv_ulimit_maxfds, +[AC_TRY_RUN([ +main() +{ +long maxfds = ulimit(4, 0L); +exit (maxfds == -1L); +} +], bash_cv_ulimit_maxfds=yes, bash_cv_ulimit_maxfds=no, + [AC_MSG_WARN(cannot check ulimit if cross compiling -- defaulting to no) + bash_cv_ulimit_maxfds=no] +)]) +AC_MSG_RESULT($bash_cv_ulimit_maxfds) +if test $bash_cv_ulimit_maxfds = yes; then +AC_DEFINE(ULIMIT_MAXFDS) +fi +]) + +AC_DEFUN(BASH_FUNC_GETCWD, +[AC_MSG_CHECKING([if getcwd() calls popen()]) +AC_CACHE_VAL(bash_cv_getcwd_calls_popen, +[AC_TRY_RUN([ +#include +#ifdef HAVE_UNISTD_H +#include +#endif + +#ifndef __STDC__ +#ifndef const +#define const +#endif +#endif + +int popen_called; + +FILE * +popen(command, type) + const char *command; + const char *type; +{ + popen_called = 1; + return (FILE *)NULL; +} + +FILE *_popen(command, type) + const char *command; + const char *type; +{ + return (popen (command, type)); +} + +int +pclose(stream) +FILE *stream; +{ + return 0; +} + +int +_pclose(stream) +FILE *stream; +{ + return 0; +} + +main() +{ + char lbuf[32]; + popen_called = 0; + getcwd(lbuf, 32); + exit (popen_called); +} +], bash_cv_getcwd_calls_popen=no, bash_cv_getcwd_calls_popen=yes, + [AC_MSG_WARN(cannot check whether getcwd calls popen if cross compiling -- defaulting to no) + bash_cv_getcwd_calls_popen=no] +)]) +AC_MSG_RESULT($bash_cv_getcwd_calls_popen) +if test $bash_cv_getcwd_calls_popen = yes; then +AC_DEFINE(GETCWD_BROKEN) +AC_LIBOBJ(getcwd) +fi +]) + +dnl +dnl This needs BASH_CHECK_SOCKLIB, but since that's not called on every +dnl system, we can't use AC_PREREQ +dnl +AC_DEFUN(BASH_FUNC_GETHOSTBYNAME, +[if test "X$bash_cv_have_gethostbyname" = "X"; then +_bash_needmsg=yes +else +AC_MSG_CHECKING(for gethostbyname in socket library) +_bash_needmsg= +fi +AC_CACHE_VAL(bash_cv_have_gethostbyname, +[AC_TRY_LINK([#include ], +[ struct hostent *hp; + hp = gethostbyname("localhost"); +], bash_cv_have_gethostbyname=yes, bash_cv_have_gethostbyname=no)] +) +if test "X$_bash_needmsg" = Xyes; then + AC_MSG_CHECKING(for gethostbyname in socket library) +fi +AC_MSG_RESULT($bash_cv_have_gethostbyname) +if test "$bash_cv_have_gethostbyname" = yes; then +AC_DEFINE(HAVE_GETHOSTBYNAME) +fi +]) + +AC_DEFUN(BASH_FUNC_FNMATCH_EXTMATCH, +[AC_MSG_CHECKING(if fnmatch does extended pattern matching with FNM_EXTMATCH) +AC_CACHE_VAL(bash_cv_fnm_extmatch, +[AC_TRY_RUN([ +#include + +main() +{ +#ifdef FNM_EXTMATCH + exit (0); +#else + exit (1); +#endif +} +], bash_cv_fnm_extmatch=yes, bash_cv_fnm_extmatch=no, + [AC_MSG_WARN(cannot check FNM_EXTMATCH if cross compiling -- defaulting to no) + bash_cv_fnm_extmatch=no]) +]) +AC_MSG_RESULT($bash_cv_fnm_extmatch) +if test $bash_cv_fnm_extmatch = yes; then +AC_DEFINE(HAVE_LIBC_FNM_EXTMATCH) +fi +]) + +AC_DEFUN(BASH_FUNC_POSIX_SETJMP, +[AC_REQUIRE([BASH_SYS_SIGNAL_VINTAGE]) +AC_MSG_CHECKING(for presence of POSIX-style sigsetjmp/siglongjmp) +AC_CACHE_VAL(bash_cv_func_sigsetjmp, +[AC_TRY_RUN([ +#ifdef HAVE_UNISTD_H +#include +#endif +#include +#include +#include + +main() +{ +#if !defined (_POSIX_VERSION) || !defined (HAVE_POSIX_SIGNALS) +exit (1); +#else + +int code; +sigset_t set, oset; +sigjmp_buf xx; + +/* get the mask */ +sigemptyset(&set); +sigemptyset(&oset); +sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &set); +sigprocmask(SIG_BLOCK, (sigset_t *)NULL, &oset); + +/* save it */ +code = sigsetjmp(xx, 1); +if (code) + exit(0); /* could get sigmask and compare to oset here. */ + +/* change it */ +sigaddset(&set, SIGINT); +sigprocmask(SIG_BLOCK, &set, (sigset_t *)NULL); + +/* and siglongjmp */ +siglongjmp(xx, 10); +exit(1); +#endif +}], bash_cv_func_sigsetjmp=present, bash_cv_func_sigsetjmp=missing, + [AC_MSG_WARN(cannot check for sigsetjmp/siglongjmp if cross-compiling -- defaulting to missing) + bash_cv_func_sigsetjmp=missing] +)]) +AC_MSG_RESULT($bash_cv_func_sigsetjmp) +if test $bash_cv_func_sigsetjmp = present; then +AC_DEFINE(HAVE_POSIX_SIGSETJMP) +fi +]) + +AC_DEFUN(BASH_FUNC_STRCOLL, +[ +AC_MSG_CHECKING(whether or not strcoll and strcmp differ) +AC_CACHE_VAL(bash_cv_func_strcoll_broken, +[AC_TRY_RUN([ +#include +#if defined (HAVE_LOCALE_H) +#include +#endif + +main(c, v) +int c; +char *v[]; +{ + int r1, r2; + char *deflocale, *defcoll; + +#ifdef HAVE_SETLOCALE + deflocale = setlocale(LC_ALL, ""); + defcoll = setlocale(LC_COLLATE, ""); +#endif + +#ifdef HAVE_STRCOLL + /* These two values are taken from tests/glob-test. */ + r1 = strcoll("abd", "aXd"); +#else + r1 = 0; +#endif + r2 = strcmp("abd", "aXd"); + + /* These two should both be greater than 0. It is permissible for + a system to return different values, as long as the sign is the + same. */ + + /* Exit with 1 (failure) if these two values are both > 0, since + this tests whether strcoll(3) is broken with respect to strcmp(3) + in the default locale. */ + exit (r1 > 0 && r2 > 0); +} +], bash_cv_func_strcoll_broken=yes, bash_cv_func_strcoll_broken=no, + [AC_MSG_WARN(cannot check strcoll if cross compiling -- defaulting to no) + bash_cv_func_strcoll_broken=no] +)]) +AC_MSG_RESULT($bash_cv_func_strcoll_broken) +if test $bash_cv_func_strcoll_broken = yes; then +AC_DEFINE(STRCOLL_BROKEN) +fi +]) + +AC_DEFUN(BASH_FUNC_PRINTF_A_FORMAT, +[AC_MSG_CHECKING([for printf floating point output in hex notation]) +AC_CACHE_VAL(bash_cv_printf_a_format, +[AC_TRY_RUN([ +#include +#include + +int +main() +{ + double y = 0.0; + char abuf[1024]; + + sprintf(abuf, "%A", y); + exit(strchr(abuf, 'P') == (char *)0); +} +], bash_cv_printf_a_format=yes, bash_cv_printf_a_format=no, + [AC_MSG_WARN(cannot check printf if cross compiling -- defaulting to no) + bash_cv_printf_a_format=no] +)]) +AC_MSG_RESULT($bash_cv_printf_a_format) +if test $bash_cv_printf_a_format = yes; then +AC_DEFINE(HAVE_PRINTF_A_FORMAT) +fi +]) + +AC_DEFUN(BASH_STRUCT_TERMIOS_LDISC, +[ +AC_CHECK_MEMBER(struct termios.c_line, AC_DEFINE(TERMIOS_LDISC), ,[ +#include +#include +]) +]) + +AC_DEFUN(BASH_STRUCT_TERMIO_LDISC, +[ +AC_CHECK_MEMBER(struct termio.c_line, AC_DEFINE(TERMIO_LDISC), ,[ +#include +#include +]) +]) + +dnl +dnl Like AC_STRUCT_ST_BLOCKS, but doesn't muck with LIBOBJS +dnl +dnl sets bash_cv_struct_stat_st_blocks +dnl +dnl unused for now; we'll see how AC_CHECK_MEMBERS works +dnl +AC_DEFUN(BASH_STRUCT_ST_BLOCKS, +[ +AC_MSG_CHECKING([for struct stat.st_blocks]) +AC_CACHE_VAL(bash_cv_struct_stat_st_blocks, +[AC_TRY_COMPILE( +[ +#include +#include +], +[ +main() +{ +static struct stat a; +if (a.st_blocks) return 0; +return 0; +} +], bash_cv_struct_stat_st_blocks=yes, bash_cv_struct_stat_st_blocks=no) +]) +AC_MSG_RESULT($bash_cv_struct_stat_st_blocks) +if test "$bash_cv_struct_stat_st_blocks" = "yes"; then +AC_DEFINE(HAVE_STRUCT_STAT_ST_BLOCKS) +fi +]) + +AC_DEFUN(BASH_CHECK_LIB_TERMCAP, +[ +if test "X$bash_cv_termcap_lib" = "X"; then +_bash_needmsg=yes +else +AC_MSG_CHECKING(which library has the termcap functions) +_bash_needmsg= +fi +AC_CACHE_VAL(bash_cv_termcap_lib, +[AC_CHECK_FUNC(tgetent, bash_cv_termcap_lib=libc, + [AC_CHECK_LIB(termcap, tgetent, bash_cv_termcap_lib=libtermcap, + [AC_CHECK_LIB(tinfo, tgetent, bash_cv_termcap_lib=libtinfo, + [AC_CHECK_LIB(curses, tgetent, bash_cv_termcap_lib=libcurses, + [AC_CHECK_LIB(ncurses, tgetent, bash_cv_termcap_lib=libncurses, + bash_cv_termcap_lib=gnutermcap)])])])])]) +if test "X$_bash_needmsg" = "Xyes"; then +AC_MSG_CHECKING(which library has the termcap functions) +fi +AC_MSG_RESULT(using $bash_cv_termcap_lib) +if test $bash_cv_termcap_lib = gnutermcap && test -z "$prefer_curses"; then +LDFLAGS="$LDFLAGS -L./lib/termcap" +TERMCAP_LIB="./lib/termcap/libtermcap.a" +TERMCAP_DEP="./lib/termcap/libtermcap.a" +elif test $bash_cv_termcap_lib = libtermcap && test -z "$prefer_curses"; then +TERMCAP_LIB=-ltermcap +TERMCAP_DEP= +elif test $bash_cv_termcap_lib = libtinfo; then +TERMCAP_LIB=-ltinfo +TERMCAP_DEP= +elif test $bash_cv_termcap_lib = libncurses; then +TERMCAP_LIB=-lncurses +TERMCAP_DEP= +elif test $bash_cv_termcap_lib = libc; then +TERMCAP_LIB= +TERMCAP_DEP= +else +TERMCAP_LIB=-lcurses +TERMCAP_DEP= +fi +]) + +dnl +dnl Check for the presence of getpeername in libsocket. +dnl If libsocket is present, check for libnsl and add it to LIBS if +dnl it's there, since most systems with libsocket require linking +dnl with libnsl as well. This should only be called if getpeername +dnl was not found in libc. +dnl +dnl NOTE: IF WE FIND GETPEERNAME, WE ASSUME THAT WE HAVE BIND/CONNECT +dnl AS WELL +dnl +AC_DEFUN(BASH_CHECK_LIB_SOCKET, +[ +if test "X$bash_cv_have_socklib" = "X"; then +_bash_needmsg= +else +AC_MSG_CHECKING(for socket library) +_bash_needmsg=yes +fi +AC_CACHE_VAL(bash_cv_have_socklib, +[AC_CHECK_LIB(socket, getpeername, + bash_cv_have_socklib=yes, bash_cv_have_socklib=no, -lnsl)]) +if test "X$_bash_needmsg" = Xyes; then + AC_MSG_RESULT($bash_cv_have_socklib) + _bash_needmsg= +fi +if test $bash_cv_have_socklib = yes; then + # check for libnsl, add it to LIBS if present + if test "X$bash_cv_have_libnsl" = "X"; then + _bash_needmsg= + else + AC_MSG_CHECKING(for libnsl) + _bash_needmsg=yes + fi + AC_CACHE_VAL(bash_cv_have_libnsl, + [AC_CHECK_LIB(nsl, t_open, + bash_cv_have_libnsl=yes, bash_cv_have_libnsl=no)]) + if test "X$_bash_needmsg" = Xyes; then + AC_MSG_RESULT($bash_cv_have_libnsl) + _bash_needmsg= + fi + if test $bash_cv_have_libnsl = yes; then + LIBS="-lsocket -lnsl $LIBS" + else + LIBS="-lsocket $LIBS" + fi + AC_DEFINE(HAVE_LIBSOCKET) + AC_DEFINE(HAVE_GETPEERNAME) +fi +]) + +AC_DEFUN(BASH_STRUCT_DIRENT_D_INO, +[AC_REQUIRE([AC_HEADER_DIRENT]) +AC_MSG_CHECKING(for struct dirent.d_ino) +AC_CACHE_VAL(bash_cv_dirent_has_dino, +[AC_TRY_COMPILE([ +#include +#include +#ifdef HAVE_UNISTD_H +# include +#endif /* HAVE_UNISTD_H */ +#if defined(HAVE_DIRENT_H) +# include +#else +# define dirent direct +# ifdef HAVE_SYS_NDIR_H +# include +# endif /* SYSNDIR */ +# ifdef HAVE_SYS_DIR_H +# include +# endif /* SYSDIR */ +# ifdef HAVE_NDIR_H +# include +# endif +#endif /* HAVE_DIRENT_H */ +],[ +struct dirent d; int z; z = d.d_ino; +], bash_cv_dirent_has_dino=yes, bash_cv_dirent_has_dino=no)]) +AC_MSG_RESULT($bash_cv_dirent_has_dino) +if test $bash_cv_dirent_has_dino = yes; then +AC_DEFINE(HAVE_STRUCT_DIRENT_D_INO) +fi +]) + +AC_DEFUN(BASH_STRUCT_DIRENT_D_FILENO, +[AC_REQUIRE([AC_HEADER_DIRENT]) +AC_MSG_CHECKING(for struct dirent.d_fileno) +AC_CACHE_VAL(bash_cv_dirent_has_d_fileno, +[AC_TRY_COMPILE([ +#include +#include +#ifdef HAVE_UNISTD_H +# include +#endif /* HAVE_UNISTD_H */ +#if defined(HAVE_DIRENT_H) +# include +#else +# define dirent direct +# ifdef HAVE_SYS_NDIR_H +# include +# endif /* SYSNDIR */ +# ifdef HAVE_SYS_DIR_H +# include +# endif /* SYSDIR */ +# ifdef HAVE_NDIR_H +# include +# endif +#endif /* HAVE_DIRENT_H */ +],[ +struct dirent d; int z; z = d.d_fileno; +], bash_cv_dirent_has_d_fileno=yes, bash_cv_dirent_has_d_fileno=no)]) +AC_MSG_RESULT($bash_cv_dirent_has_d_fileno) +if test $bash_cv_dirent_has_d_fileno = yes; then +AC_DEFINE(HAVE_STRUCT_DIRENT_D_FILENO) +fi +]) + +AC_DEFUN(BASH_STRUCT_DIRENT_D_NAMLEN, +[AC_REQUIRE([AC_HEADER_DIRENT]) +AC_MSG_CHECKING(for struct dirent.d_namlen) +AC_CACHE_VAL(bash_cv_dirent_has_d_namlen, +[AC_TRY_COMPILE([ +#include +#include +#ifdef HAVE_UNISTD_H +# include +#endif /* HAVE_UNISTD_H */ +#if defined(HAVE_DIRENT_H) +# include +#else +# define dirent direct +# ifdef HAVE_SYS_NDIR_H +# include +# endif /* SYSNDIR */ +# ifdef HAVE_SYS_DIR_H +# include +# endif /* SYSDIR */ +# ifdef HAVE_NDIR_H +# include +# endif +#endif /* HAVE_DIRENT_H */ +],[ +struct dirent d; int z; z = d.d_namlen; +], bash_cv_dirent_has_d_namlen=yes, bash_cv_dirent_has_d_namlen=no)]) +AC_MSG_RESULT($bash_cv_dirent_has_d_namlen) +if test $bash_cv_dirent_has_d_namlen = yes; then +AC_DEFINE(HAVE_STRUCT_DIRENT_D_NAMLEN) +fi +]) + +AC_DEFUN(BASH_STRUCT_TIMEVAL, +[AC_MSG_CHECKING(for struct timeval in sys/time.h and time.h) +AC_CACHE_VAL(bash_cv_struct_timeval, +[ +AC_EGREP_HEADER(struct timeval, sys/time.h, + bash_cv_struct_timeval=yes, + AC_EGREP_HEADER(struct timeval, time.h, + bash_cv_struct_timeval=yes, + bash_cv_struct_timeval=no)) +]) +AC_MSG_RESULT($bash_cv_struct_timeval) +if test $bash_cv_struct_timeval = yes; then + AC_DEFINE(HAVE_TIMEVAL) +fi +]) + +AC_DEFUN(BASH_STRUCT_TIMEZONE, +[AC_MSG_CHECKING(for struct timezone in sys/time.h and time.h) +AC_CACHE_VAL(bash_cv_struct_timezone, +[ +AC_EGREP_HEADER(struct timezone, sys/time.h, + bash_cv_struct_timezone=yes, + AC_EGREP_HEADER(struct timezone, time.h, + bash_cv_struct_timezone=yes, + bash_cv_struct_timezone=no)) +]) +AC_MSG_RESULT($bash_cv_struct_timezone) +if test $bash_cv_struct_timezone = yes; then + AC_DEFINE(HAVE_STRUCT_TIMEZONE) +fi +]) + +AC_DEFUN(BASH_STRUCT_WINSIZE, +[AC_MSG_CHECKING(for struct winsize in sys/ioctl.h and termios.h) +AC_CACHE_VAL(bash_cv_struct_winsize_header, +[AC_TRY_COMPILE([#include +#include ], [struct winsize x;], + bash_cv_struct_winsize_header=ioctl_h, + [AC_TRY_COMPILE([#include +#include ], [struct winsize x;], + bash_cv_struct_winsize_header=termios_h, bash_cv_struct_winsize_header=other) +])]) +if test $bash_cv_struct_winsize_header = ioctl_h; then + AC_MSG_RESULT(sys/ioctl.h) + AC_DEFINE(STRUCT_WINSIZE_IN_SYS_IOCTL) +elif test $bash_cv_struct_winsize_header = termios_h; then + AC_MSG_RESULT(termios.h) + AC_DEFINE(STRUCT_WINSIZE_IN_TERMIOS) +else + AC_MSG_RESULT(not found) +fi +]) + +dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7) +AC_DEFUN(BASH_SYS_SIGNAL_VINTAGE, +[AC_REQUIRE([AC_TYPE_SIGNAL]) +AC_MSG_CHECKING(for type of signal functions) +AC_CACHE_VAL(bash_cv_signal_vintage, +[ + AC_TRY_LINK([#include ],[ + sigset_t ss; + struct sigaction sa; + sigemptyset(&ss); sigsuspend(&ss); + sigaction(SIGINT, &sa, (struct sigaction *) 0); + sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0); + ], bash_cv_signal_vintage=posix, + [ + AC_TRY_LINK([#include ], [ + int mask = sigmask(SIGINT); + sigsetmask(mask); sigblock(mask); sigpause(mask); + ], bash_cv_signal_vintage=4.2bsd, + [ + AC_TRY_LINK([ + #include + RETSIGTYPE foo() { }], [ + int mask = sigmask(SIGINT); + sigset(SIGINT, foo); sigrelse(SIGINT); + sighold(SIGINT); sigpause(SIGINT); + ], bash_cv_signal_vintage=svr3, bash_cv_signal_vintage=v7 + )] + )] +) +]) +AC_MSG_RESULT($bash_cv_signal_vintage) +if test "$bash_cv_signal_vintage" = posix; then +AC_DEFINE(HAVE_POSIX_SIGNALS) +elif test "$bash_cv_signal_vintage" = "4.2bsd"; then +AC_DEFINE(HAVE_BSD_SIGNALS) +elif test "$bash_cv_signal_vintage" = svr3; then +AC_DEFINE(HAVE_USG_SIGHOLD) +fi +]) + +dnl Check if the pgrp of setpgrp() can't be the pid of a zombie process. +AC_DEFUN(BASH_SYS_PGRP_SYNC, +[AC_REQUIRE([AC_FUNC_GETPGRP]) +AC_MSG_CHECKING(whether pgrps need synchronization) +AC_CACHE_VAL(bash_cv_pgrp_pipe, +[AC_TRY_RUN([ +#ifdef HAVE_UNISTD_H +# include +#endif +main() +{ +# ifdef GETPGRP_VOID +# define getpgID() getpgrp() +# else +# define getpgID() getpgrp(0) +# define setpgid(x,y) setpgrp(x,y) +# endif + int pid1, pid2, fds[2]; + int status; + char ok; + + switch (pid1 = fork()) { + case -1: + exit(1); + case 0: + setpgid(0, getpid()); + exit(0); + } + setpgid(pid1, pid1); + + sleep(2); /* let first child die */ + + if (pipe(fds) < 0) + exit(2); + + switch (pid2 = fork()) { + case -1: + exit(3); + case 0: + setpgid(0, pid1); + ok = getpgID() == pid1; + write(fds[1], &ok, 1); + exit(0); + } + setpgid(pid2, pid1); + + close(fds[1]); + if (read(fds[0], &ok, 1) != 1) + exit(4); + wait(&status); + wait(&status); + exit(ok ? 0 : 5); +} +], bash_cv_pgrp_pipe=no,bash_cv_pgrp_pipe=yes, + [AC_MSG_WARN(cannot check pgrp synchronization if cross compiling -- defaulting to no) + bash_cv_pgrp_pipe=no]) +]) +AC_MSG_RESULT($bash_cv_pgrp_pipe) +if test $bash_cv_pgrp_pipe = yes; then +AC_DEFINE(PGRP_PIPE) +fi +]) + +AC_DEFUN(BASH_SYS_REINSTALL_SIGHANDLERS, +[AC_REQUIRE([AC_TYPE_SIGNAL]) +AC_REQUIRE([BASH_SYS_SIGNAL_VINTAGE]) +AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked]) +AC_CACHE_VAL(bash_cv_must_reinstall_sighandlers, +[AC_TRY_RUN([ +#include +#ifdef HAVE_UNISTD_H +#include +#endif + +typedef RETSIGTYPE sigfunc(); + +int nsigint; + +#ifdef HAVE_POSIX_SIGNALS +sigfunc * +set_signal_handler(sig, handler) + int sig; + sigfunc *handler; +{ + struct sigaction act, oact; + act.sa_handler = handler; + act.sa_flags = 0; + sigemptyset (&act.sa_mask); + sigemptyset (&oact.sa_mask); + sigaction (sig, &act, &oact); + return (oact.sa_handler); +} +#else +#define set_signal_handler(s, h) signal(s, h) +#endif + +RETSIGTYPE +sigint(s) +int s; +{ + nsigint++; +} + +main() +{ + nsigint = 0; + set_signal_handler(SIGINT, sigint); + kill((int)getpid(), SIGINT); + kill((int)getpid(), SIGINT); + exit(nsigint != 2); +} +], bash_cv_must_reinstall_sighandlers=no, bash_cv_must_reinstall_sighandlers=yes, + [AC_MSG_WARN(cannot check signal handling if cross compiling -- defaulting to no) + bash_cv_must_reinstall_sighandlers=no] +)]) +AC_MSG_RESULT($bash_cv_must_reinstall_sighandlers) +if test $bash_cv_must_reinstall_sighandlers = yes; then +AC_DEFINE(MUST_REINSTALL_SIGHANDLERS) +fi +]) + +dnl check that some necessary job control definitions are present +AC_DEFUN(BASH_SYS_JOB_CONTROL_MISSING, +[AC_REQUIRE([BASH_SYS_SIGNAL_VINTAGE]) +AC_MSG_CHECKING(for presence of necessary job control definitions) +AC_CACHE_VAL(bash_cv_job_control_missing, +[AC_TRY_RUN([ +#include +#ifdef HAVE_SYS_WAIT_H +#include +#endif +#ifdef HAVE_UNISTD_H +#include +#endif +#include + +/* Add more tests in here as appropriate. */ +main() +{ +/* signal type */ +#if !defined (HAVE_POSIX_SIGNALS) && !defined (HAVE_BSD_SIGNALS) +exit(1); +#endif + +/* signals and tty control. */ +#if !defined (SIGTSTP) || !defined (SIGSTOP) || !defined (SIGCONT) +exit (1); +#endif + +/* process control */ +#if !defined (WNOHANG) || !defined (WUNTRACED) +exit(1); +#endif + +/* Posix systems have tcgetpgrp and waitpid. */ +#if defined (_POSIX_VERSION) && !defined (HAVE_TCGETPGRP) +exit(1); +#endif + +#if defined (_POSIX_VERSION) && !defined (HAVE_WAITPID) +exit(1); +#endif + +/* Other systems have TIOCSPGRP/TIOCGPRGP and wait3. */ +#if !defined (_POSIX_VERSION) && !defined (HAVE_WAIT3) +exit(1); +#endif + +exit(0); +}], bash_cv_job_control_missing=present, bash_cv_job_control_missing=missing, + [AC_MSG_WARN(cannot check job control if cross-compiling -- defaulting to missing) + bash_cv_job_control_missing=missing] +)]) +AC_MSG_RESULT($bash_cv_job_control_missing) +if test $bash_cv_job_control_missing = missing; then +AC_DEFINE(JOB_CONTROL_MISSING) +fi +]) + +dnl check whether named pipes are present +dnl this requires a previous check for mkfifo, but that is awkward to specify +AC_DEFUN(BASH_SYS_NAMED_PIPES, +[AC_MSG_CHECKING(for presence of named pipes) +AC_CACHE_VAL(bash_cv_sys_named_pipes, +[AC_TRY_RUN([ +#include +#include +#ifdef HAVE_UNISTD_H +#include +#endif + +/* Add more tests in here as appropriate. */ +main() +{ +int fd, err; + +#if defined (HAVE_MKFIFO) +exit (0); +#endif + +#if !defined (S_IFIFO) && (defined (_POSIX_VERSION) && !defined (S_ISFIFO)) +exit (1); +#endif + +#if defined (NeXT) +exit (1); +#endif +err = mkdir("/tmp/bash-aclocal", 0700); +if (err < 0) { + perror ("mkdir"); + exit(1); +} +fd = mknod ("/tmp/bash-aclocal/sh-np-autoconf", 0666 | S_IFIFO, 0); +if (fd == -1) { + rmdir ("/tmp/bash-aclocal"); + exit (1); +} +close(fd); +unlink ("/tmp/bash-aclocal/sh-np-autoconf"); +rmdir ("/tmp/bash-aclocal"); +exit(0); +}], bash_cv_sys_named_pipes=present, bash_cv_sys_named_pipes=missing, + [AC_MSG_WARN(cannot check for named pipes if cross-compiling -- defaulting to missing) + bash_cv_sys_named_pipes=missing] +)]) +AC_MSG_RESULT($bash_cv_sys_named_pipes) +if test $bash_cv_sys_named_pipes = missing; then +AC_DEFINE(NAMED_PIPES_MISSING) +fi +]) + +AC_DEFUN(BASH_SYS_DEFAULT_MAIL_DIR, +[AC_MSG_CHECKING(for default mail directory) +AC_CACHE_VAL(bash_cv_mail_dir, +[if test -d /var/mail; then + bash_cv_mail_dir=/var/mail + elif test -d /var/spool/mail; then + bash_cv_mail_dir=/var/spool/mail + elif test -d /usr/mail; then + bash_cv_mail_dir=/usr/mail + elif test -d /usr/spool/mail; then + bash_cv_mail_dir=/usr/spool/mail + else + bash_cv_mail_dir=unknown + fi +]) +AC_MSG_RESULT($bash_cv_mail_dir) +AC_DEFINE_UNQUOTED(DEFAULT_MAIL_DIRECTORY, "$bash_cv_mail_dir") +]) + +AC_DEFUN(BASH_HAVE_TIOCGWINSZ, +[AC_MSG_CHECKING(for TIOCGWINSZ in sys/ioctl.h) +AC_CACHE_VAL(bash_cv_tiocgwinsz_in_ioctl, +[AC_TRY_COMPILE([#include +#include ], [int x = TIOCGWINSZ;], + bash_cv_tiocgwinsz_in_ioctl=yes,bash_cv_tiocgwinsz_in_ioctl=no)]) +AC_MSG_RESULT($bash_cv_tiocgwinsz_in_ioctl) +if test $bash_cv_tiocgwinsz_in_ioctl = yes; then +AC_DEFINE(GWINSZ_IN_SYS_IOCTL) +fi +]) + +AC_DEFUN(BASH_HAVE_TIOCSTAT, +[AC_MSG_CHECKING(for TIOCSTAT in sys/ioctl.h) +AC_CACHE_VAL(bash_cv_tiocstat_in_ioctl, +[AC_TRY_COMPILE([#include +#include ], [int x = TIOCSTAT;], + bash_cv_tiocstat_in_ioctl=yes,bash_cv_tiocstat_in_ioctl=no)]) +AC_MSG_RESULT($bash_cv_tiocstat_in_ioctl) +if test $bash_cv_tiocstat_in_ioctl = yes; then +AC_DEFINE(TIOCSTAT_IN_SYS_IOCTL) +fi +]) + +AC_DEFUN(BASH_HAVE_FIONREAD, +[AC_MSG_CHECKING(for FIONREAD in sys/ioctl.h) +AC_CACHE_VAL(bash_cv_fionread_in_ioctl, +[AC_TRY_COMPILE([#include +#include ], [int x = FIONREAD;], + bash_cv_fionread_in_ioctl=yes,bash_cv_fionread_in_ioctl=no)]) +AC_MSG_RESULT($bash_cv_fionread_in_ioctl) +if test $bash_cv_fionread_in_ioctl = yes; then +AC_DEFINE(FIONREAD_IN_SYS_IOCTL) +fi +]) + +dnl +dnl See if speed_t is declared in . Some versions of linux +dnl require a definition of speed_t each time is included, +dnl but you can only get speed_t if you include (on some +dnl versions) or (on others). +dnl +AC_DEFUN(BASH_CHECK_SPEED_T, +[AC_MSG_CHECKING(for speed_t in sys/types.h) +AC_CACHE_VAL(bash_cv_speed_t_in_sys_types, +[AC_TRY_COMPILE([#include ], [speed_t x;], + bash_cv_speed_t_in_sys_types=yes,bash_cv_speed_t_in_sys_types=no)]) +AC_MSG_RESULT($bash_cv_speed_t_in_sys_types) +if test $bash_cv_speed_t_in_sys_types = yes; then +AC_DEFINE(SPEED_T_IN_SYS_TYPES) +fi +]) + +AC_DEFUN(BASH_CHECK_GETPW_FUNCS, +[AC_MSG_CHECKING(whether getpw functions are declared in pwd.h) +AC_CACHE_VAL(bash_cv_getpw_declared, +[AC_EGREP_CPP(getpwuid, +[ +#include +#ifdef HAVE_UNISTD_H +# include +#endif +#include +], +bash_cv_getpw_declared=yes,bash_cv_getpw_declared=no)]) +AC_MSG_RESULT($bash_cv_getpw_declared) +if test $bash_cv_getpw_declared = yes; then +AC_DEFINE(HAVE_GETPW_DECLS) +fi +]) + +AC_DEFUN(BASH_CHECK_DEV_FD, +[AC_MSG_CHECKING(whether /dev/fd is available) +AC_CACHE_VAL(bash_cv_dev_fd, +[if test -d /dev/fd && test -r /dev/fd/0 < /dev/null; then + bash_cv_dev_fd=standard + elif test -d /proc/self/fd && test -r /proc/self/fd/0 < /dev/null; then + bash_cv_dev_fd=whacky + else + bash_cv_dev_fd=absent + fi +]) +AC_MSG_RESULT($bash_cv_dev_fd) +if test $bash_cv_dev_fd = "standard"; then + AC_DEFINE(HAVE_DEV_FD) + AC_DEFINE(DEV_FD_PREFIX, "/dev/fd/") +elif test $bash_cv_dev_fd = "whacky"; then + AC_DEFINE(HAVE_DEV_FD) + AC_DEFINE(DEV_FD_PREFIX, "/proc/self/fd/") +fi +]) + +AC_DEFUN(BASH_CHECK_DEV_STDIN, +[AC_MSG_CHECKING(whether /dev/stdin stdout stderr are available) +AC_CACHE_VAL(bash_cv_dev_stdin, +[if test -d /dev/fd && test -r /dev/stdin < /dev/null; then + bash_cv_dev_stdin=present + elif test -d /proc/self/fd && test -r /dev/stdin < /dev/null; then + bash_cv_dev_stdin=present + else + bash_cv_dev_stdin=absent + fi +]) +AC_MSG_RESULT($bash_cv_dev_stdin) +if test $bash_cv_dev_stdin = "present"; then + AC_DEFINE(HAVE_DEV_STDIN) +fi +]) + +dnl +dnl Check if HPUX needs _KERNEL defined for RLIMIT_* definitions +dnl +AC_DEFUN(BASH_CHECK_KERNEL_RLIMIT, +[AC_MSG_CHECKING([whether $host_os needs _KERNEL for RLIMIT defines]) +AC_CACHE_VAL(bash_cv_kernel_rlimit, +[AC_TRY_COMPILE([ +#include +#include +], +[ + int f; + f = RLIMIT_DATA; +], bash_cv_kernel_rlimit=no, +[AC_TRY_COMPILE([ +#include +#define _KERNEL +#include +#undef _KERNEL +], +[ + int f; + f = RLIMIT_DATA; +], bash_cv_kernel_rlimit=yes, bash_cv_kernel_rlimit=no)] +)]) +AC_MSG_RESULT($bash_cv_kernel_rlimit) +if test $bash_cv_kernel_rlimit = yes; then +AC_DEFINE(RLIMIT_NEEDS_KERNEL) +fi +]) + +dnl +dnl Check for 64-bit off_t -- used for malloc alignment +dnl +dnl C does not allow duplicate case labels, so the compile will fail if +dnl sizeof(off_t) is > 4. +dnl +AC_DEFUN(BASH_CHECK_OFF_T_64, +[AC_CACHE_CHECK(for 64-bit off_t, bash_cv_off_t_64, +AC_TRY_COMPILE([ +#ifdef HAVE_UNISTD_H +#include +#endif +#include +],[ +switch (0) case 0: case (sizeof (off_t) <= 4):; +], bash_cv_off_t_64=no, bash_cv_off_t_64=yes)) +if test $bash_cv_off_t_64 = yes; then + AC_DEFINE(HAVE_OFF_T_64) +fi]) + +AC_DEFUN(BASH_CHECK_RTSIGS, +[AC_MSG_CHECKING(for unusable real-time signals due to large values) +AC_CACHE_VAL(bash_cv_unusable_rtsigs, +[AC_TRY_RUN([ +#include +#include + +#ifndef NSIG +# define NSIG 64 +#endif + +main () +{ + int n_sigs = 2 * NSIG; +#ifdef SIGRTMIN + int rtmin = SIGRTMIN; +#else + int rtmin = 0; +#endif + + exit(rtmin < n_sigs); +}], bash_cv_unusable_rtsigs=yes, bash_cv_unusable_rtsigs=no, + [AC_MSG_WARN(cannot check real-time signals if cross compiling -- defaulting to yes) + bash_cv_unusable_rtsigs=yes] +)]) +AC_MSG_RESULT($bash_cv_unusable_rtsigs) +if test $bash_cv_unusable_rtsigs = yes; then +AC_DEFINE(UNUSABLE_RT_SIGNALS) +fi +]) + +dnl +dnl check for availability of multibyte characters and functions +dnl +AC_DEFUN(BASH_CHECK_MULTIBYTE, +[ +AC_CHECK_HEADERS(wctype.h) +AC_CHECK_HEADERS(wchar.h) +AC_CHECK_HEADERS(langinfo.h) + +AC_CHECK_FUNC(mbsrtowcs, AC_DEFINE(HAVE_MBSRTOWCS)) +AC_CHECK_FUNC(mbrtowc, AC_DEFINE(HAVE_MBRTOWC)) +AC_CHECK_FUNC(mbrlen, AC_DEFINE(HAVE_MBRLEN)) +AC_CHECK_FUNC(wctomb, AC_DEFINE(HAVE_WCTOMB)) +AC_CHECK_FUNC(wcwidth, AC_DEFINE(HAVE_WCWIDTH)) +AC_CHECK_FUNC(wcsdup, AC_DEFINE(HAVE_WCSDUP)) + +AC_CACHE_CHECK([for mbstate_t], bash_cv_have_mbstate_t, +[AC_TRY_COMPILE([ +#include ], [ + mbstate_t ps; + mbstate_t *psp; + psp = (mbstate_t *)0; +], bash_cv_have_mbstate_t=yes, bash_cv_have_mbstate_t=no)]) +if test $bash_cv_have_mbstate_t = yes; then + AC_DEFINE(HAVE_MBSTATE_T) +fi + +AC_CACHE_CHECK([for nl_langinfo and CODESET], bash_cv_langinfo_codeset, +[AC_TRY_LINK( +[#include ], +[char* cs = nl_langinfo(CODESET);], +bash_cv_langinfo_codeset=yes, bash_cv_langinfo_codeset=no)]) +if test $bash_cv_langinfo_codeset = yes; then + AC_DEFINE(HAVE_LANGINFO_CODESET) +fi + +]) + +dnl need: prefix exec_prefix libdir includedir CC TERMCAP_LIB +dnl require: +dnl AC_PROG_CC +dnl BASH_CHECK_LIB_TERMCAP + +AC_DEFUN(RL_LIB_READLINE_VERSION, +[ +AC_REQUIRE([BASH_CHECK_LIB_TERMCAP]) + +AC_MSG_CHECKING([version of installed readline library]) + +# What a pain in the ass this is. + +# save cpp and ld options +_save_CFLAGS="$CFLAGS" +_save_LDFLAGS="$LDFLAGS" +_save_LIBS="$LIBS" + +# Don't set ac_cv_rl_prefix if the caller has already assigned a value. This +# allows the caller to do something like $_rl_prefix=$withval if the user +# specifies --with-installed-readline=PREFIX as an argument to configure + +if test -z "$ac_cv_rl_prefix"; then +test "x$prefix" = xNONE && ac_cv_rl_prefix=$ac_default_prefix || ac_cv_rl_prefix=${prefix} +fi + +eval ac_cv_rl_includedir=${ac_cv_rl_prefix}/include +eval ac_cv_rl_libdir=${ac_cv_rl_prefix}/lib + +LIBS="$LIBS -lreadline ${TERMCAP_LIB}" +CFLAGS="$CFLAGS -I${ac_cv_rl_includedir}" +LDFLAGS="$LDFLAGS -L${ac_cv_rl_libdir}" + +AC_CACHE_VAL(ac_cv_rl_version, +[AC_TRY_RUN([ +#include +#include + +main() +{ + FILE *fp; + fp = fopen("conftest.rlv", "w"); + if (fp == 0) exit(1); + fprintf(fp, "%s\n", rl_library_version ? rl_library_version : "0.0"); + fclose(fp); + exit(0); +} +], +ac_cv_rl_version=`cat conftest.rlv`, +ac_cv_rl_version='0.0', +ac_cv_rl_version='4.2')]) + +CFLAGS="$_save_CFLAGS" +LDFLAGS="$_save_LDFLAGS" +LIBS="$_save_LIBS" + +RL_MAJOR=0 +RL_MINOR=0 + +# ( +case "$ac_cv_rl_version" in +2*|3*|4*|5*|6*|7*|8*|9*) + RL_MAJOR=`echo $ac_cv_rl_version | sed 's:\..*$::'` + RL_MINOR=`echo $ac_cv_rl_version | sed -e 's:^.*\.::' -e 's:[[a-zA-Z]]*$::'` + ;; +esac + +# ((( +case $RL_MAJOR in +[[0-9][0-9]]) _RL_MAJOR=$RL_MAJOR ;; +[[0-9]]) _RL_MAJOR=0$RL_MAJOR ;; +*) _RL_MAJOR=00 ;; +esac + +# ((( +case $RL_MINOR in +[[0-9][0-9]]) _RL_MINOR=$RL_MINOR ;; +[[0-9]]) _RL_MINOR=0$RL_MINOR ;; +*) _RL_MINOR=00 ;; +esac + +RL_VERSION="0x${_RL_MAJOR}${_RL_MINOR}" + +# Readline versions greater than 4.2 have these defines in readline.h + +if test $ac_cv_rl_version = '0.0' ; then + AC_MSG_WARN([Could not test version of installed readline library.]) +elif test $RL_MAJOR -gt 4 || { test $RL_MAJOR = 4 && test $RL_MINOR -gt 2 ; } ; then + # set these for use by the caller + RL_PREFIX=$ac_cv_rl_prefix + RL_LIBDIR=$ac_cv_rl_libdir + RL_INCLUDEDIR=$ac_cv_rl_includedir + AC_MSG_RESULT($ac_cv_rl_version) +else + +AC_DEFINE_UNQUOTED(RL_READLINE_VERSION, $RL_VERSION, [encoded version of the installed readline library]) +AC_DEFINE_UNQUOTED(RL_VERSION_MAJOR, $RL_MAJOR, [major version of installed readline library]) +AC_DEFINE_UNQUOTED(RL_VERSION_MINOR, $RL_MINOR, [minor version of installed readline library]) + +AC_SUBST(RL_VERSION) +AC_SUBST(RL_MAJOR) +AC_SUBST(RL_MINOR) + +# set these for use by the caller +RL_PREFIX=$ac_cv_rl_prefix +RL_LIBDIR=$ac_cv_rl_libdir +RL_INCLUDEDIR=$ac_cv_rl_includedir + +AC_MSG_RESULT($ac_cv_rl_version) + +fi +]) + +AC_DEFUN(BASH_FUNC_CTYPE_NONASCII, +[ +AC_MSG_CHECKING(whether the ctype macros accept non-ascii characters) +AC_CACHE_VAL(bash_cv_func_ctype_nonascii, +[AC_TRY_RUN([ +#ifdef HAVE_LOCALE_H +#include +#endif +#include +#include + +main(c, v) +int c; +char *v[]; +{ + char *deflocale; + unsigned char x; + int r1, r2; + +#ifdef HAVE_SETLOCALE + /* We take a shot here. If that locale is not known, try the + system default. We try this one because '\342' (226) is + known to be a printable character in that locale. */ + deflocale = setlocale(LC_ALL, "en_US.ISO8859-1"); + if (deflocale == 0) + deflocale = setlocale(LC_ALL, ""); +#endif + + x = '\342'; + r1 = isprint(x); + x -= 128; + r2 = isprint(x); + exit (r1 == 0 || r2 == 0); +} +], bash_cv_func_ctype_nonascii=yes, bash_cv_func_ctype_nonascii=no, + [AC_MSG_WARN(cannot check ctype macros if cross compiling -- defaulting to no) + bash_cv_func_ctype_nonascii=no] +)]) +AC_MSG_RESULT($bash_cv_func_ctype_nonascii) +if test $bash_cv_func_ctype_nonascii = yes; then +AC_DEFINE(CTYPE_NON_ASCII) +fi +]) + +dnl +dnl tests added for bashdb +dnl + + +AC_DEFUN([AM_PATH_LISPDIR], + [AC_ARG_WITH(lispdir, AC_HELP_STRING([--with-lispdir], [override the default lisp directory]), + [ lispdir="$withval" + AC_MSG_CHECKING([where .elc files should go]) + AC_MSG_RESULT([$lispdir])], + [ + # If set to t, that means we are running in a shell under Emacs. + # If you have an Emacs named "t", then use the full path. + test x"$EMACS" = xt && EMACS= + AC_CHECK_PROGS(EMACS, emacs xemacs, no) + if test $EMACS != "no"; then + if test x${lispdir+set} != xset; then + AC_CACHE_CHECK([where .elc files should go], [am_cv_lispdir], [dnl + am_cv_lispdir=`$EMACS -batch -q -eval '(while load-path (princ (concat (car load-path) "\n")) (setq load-path (cdr load-path)))' | sed -n -e 's,/$,,' -e '/.*\/lib\/\(x\?emacs\/site-lisp\)$/{s,,${libdir}/\1,;p;q;}' -e '/.*\/share\/\(x\?emacs\/site-lisp\)$/{s,,${datadir}/\1,;p;q;}'` + if test -z "$am_cv_lispdir"; then + am_cv_lispdir='${datadir}/emacs/site-lisp' + fi + ]) + lispdir="$am_cv_lispdir" + fi + fi + ]) + AC_SUBST(lispdir) +]) + +dnl +dnl tests added for gettext +dnl +# codeset.m4 serial AM1 (gettext-0.10.40) +dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +AC_DEFUN([AM_LANGINFO_CODESET], +[ + AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset, + [AC_TRY_LINK([#include ], + [char* cs = nl_langinfo(CODESET);], + am_cv_langinfo_codeset=yes, + am_cv_langinfo_codeset=no) + ]) + if test $am_cv_langinfo_codeset = yes; then + AC_DEFINE(HAVE_LANGINFO_CODESET, 1, + [Define if you have and nl_langinfo(CODESET).]) + fi +]) +# gettext.m4 serial 20 (gettext-0.12) +dnl Copyright (C) 1995-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995-2000. +dnl Bruno Haible , 2000-2003. + +dnl Macro to add for using GNU gettext. + +dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]). +dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The +dnl default (if it is not specified or empty) is 'no-libtool'. +dnl INTLSYMBOL should be 'external' for packages with no intl directory, +dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory. +dnl If INTLSYMBOL is 'use-libtool', then a libtool library +dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static, +dnl depending on --{enable,disable}-{shared,static} and on the presence of +dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library +dnl $(top_builddir)/intl/libintl.a will be created. +dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext +dnl implementations (in libc or libintl) without the ngettext() function +dnl will be ignored. If NEEDSYMBOL is specified and is +dnl 'need-formatstring-macros', then GNU gettext implementations that don't +dnl support the ISO C 99 formatstring macros will be ignored. +dnl INTLDIR is used to find the intl libraries. If empty, +dnl the value `$(top_builddir)/intl/' is used. +dnl +dnl The result of the configuration is one of three cases: +dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled +dnl and used. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 2) GNU gettext has been found in the system's C library. +dnl Catalog format: GNU --> install in $(datadir) +dnl Catalog extension: .mo after installation, .gmo in source tree +dnl 3) No internationalization, always use English msgid. +dnl Catalog format: none +dnl Catalog extension: none +dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur. +dnl The use of .gmo is historical (it was needed to avoid overwriting the +dnl GNU format catalogs when building on a platform with an X/Open gettext), +dnl but we keep it in order not to force irrelevant filename changes on the +dnl maintainers. +dnl +AC_DEFUN([AM_GNU_GETTEXT], +[ + dnl Argument checking. + ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], , + [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT +])])])])]) + ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], , + [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT +])])])]) + define(gt_included_intl, ifelse([$1], [external], [no], [yes])) + define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], [])) + + AC_REQUIRE([AM_PO_SUBDIRS])dnl + ifelse(gt_included_intl, yes, [ + AC_REQUIRE([AM_INTL_SUBDIR])dnl + ]) + + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Sometimes libintl requires libiconv, so first search for libiconv. + dnl Ideally we would do this search only after the + dnl if test "$USE_NLS" = "yes"; then + dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then + dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT + dnl the configure script would need to contain the same shell code + dnl again, outside any 'if'. There are two solutions: + dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'. + dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE. + dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not + dnl documented, we avoid it. + ifelse(gt_included_intl, yes, , [ + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + ]) + + dnl Set USE_NLS. + AM_NLS + + ifelse(gt_included_intl, yes, [ + BUILD_INCLUDED_LIBINTL=no + USE_INCLUDED_LIBINTL=no + ]) + LIBINTL= + LTLIBINTL= + POSUB= + + dnl If we use NLS figure out what method + if test "$USE_NLS" = "yes"; then + gt_use_preinstalled_gnugettext=no + ifelse(gt_included_intl, yes, [ + AC_MSG_CHECKING([whether included gettext is requested]) + AC_ARG_WITH(included-gettext, + [ --with-included-gettext use the GNU gettext library included here], + nls_cv_force_use_gnu_gettext=$withval, + nls_cv_force_use_gnu_gettext=no) + AC_MSG_RESULT($nls_cv_force_use_gnu_gettext) + + nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" + if test "$nls_cv_force_use_gnu_gettext" != "yes"; then + ]) + dnl User does not insist on using GNU NLS library. Figure out what + dnl to use. If GNU gettext is available we use this. Else we have + dnl to fall back to GNU NLS library. + + dnl Add a version number to the cache macros. + define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1))) + define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc]) + define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl]) + + AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc, + [AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern int *_nl_domain_bindings;], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings], + gt_cv_func_gnugettext_libc=yes, + gt_cv_func_gnugettext_libc=no)]) + + if test "$gt_cv_func_gnugettext_libc" != "yes"; then + dnl Sometimes libintl requires libiconv, so first search for libiconv. + ifelse(gt_included_intl, yes, , [ + AM_ICONV_LINK + ]) + dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL + dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) + dnl because that would add "-liconv" to LIBINTL and LTLIBINTL + dnl even if libiconv doesn't exist. + AC_LIB_LINKFLAGS_BODY([intl]) + AC_CACHE_CHECK([for GNU gettext in libintl], + gt_cv_func_gnugettext_libintl, + [gt_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS $INCINTL" + gt_save_LIBS="$LIBS" + LIBS="$LIBS $LIBINTL" + dnl Now see whether libintl exists and does not depend on libiconv. + AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias ();], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)], + gt_cv_func_gnugettext_libintl=yes, + gt_cv_func_gnugettext_libintl=no) + dnl Now see whether libintl exists and depends on libiconv. + if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then + LIBS="$LIBS $LIBICONV" + AC_TRY_LINK([#include +]ifelse([$2], [need-formatstring-macros], +[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION +#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) +#endif +changequote(,)dnl +typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; +changequote([,])dnl +], [])[extern int _nl_msg_cat_cntr; +extern +#ifdef __cplusplus +"C" +#endif +const char *_nl_expand_alias ();], + [bindtextdomain ("", ""); +return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)], + [LIBINTL="$LIBINTL $LIBICONV" + LTLIBINTL="$LTLIBINTL $LTLIBICONV" + gt_cv_func_gnugettext_libintl=yes + ]) + fi + CPPFLAGS="$gt_save_CPPFLAGS" + LIBS="$gt_save_LIBS"]) + fi + + dnl If an already present or preinstalled GNU gettext() is found, + dnl use it. But if this macro is used in GNU gettext, and GNU + dnl gettext is already preinstalled in libintl, we update this + dnl libintl. (Cf. the install rule in intl/Makefile.in.) + if test "$gt_cv_func_gnugettext_libc" = "yes" \ + || { test "$gt_cv_func_gnugettext_libintl" = "yes" \ + && test "$PACKAGE" != gettext-runtime \ + && test "$PACKAGE" != gettext-tools; }; then + gt_use_preinstalled_gnugettext=yes + else + dnl Reset the values set by searching for libintl. + LIBINTL= + LTLIBINTL= + INCINTL= + fi + + ifelse(gt_included_intl, yes, [ + if test "$gt_use_preinstalled_gnugettext" != "yes"; then + dnl GNU gettext is not found in the C library. + dnl Fall back on included GNU gettext library. + nls_cv_use_gnu_gettext=yes + fi + fi + + if test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions used to generate GNU NLS library. + BUILD_INCLUDED_LIBINTL=yes + USE_INCLUDED_LIBINTL=yes + LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV" + LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV" + LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` + fi + + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + dnl Mark actions to use GNU gettext tools. + CATOBJEXT=.gmo + fi + ]) + + if test "$gt_use_preinstalled_gnugettext" = "yes" \ + || test "$nls_cv_use_gnu_gettext" = "yes"; then + AC_DEFINE(ENABLE_NLS, 1, + [Define to 1 if translation of program messages to the user's native language + is requested.]) + else + USE_NLS=no + fi + fi + + AC_MSG_CHECKING([whether to use NLS]) + AC_MSG_RESULT([$USE_NLS]) + if test "$USE_NLS" = "yes"; then + AC_MSG_CHECKING([where the gettext function comes from]) + if test "$gt_use_preinstalled_gnugettext" = "yes"; then + if test "$gt_cv_func_gnugettext_libintl" = "yes"; then + gt_source="external libintl" + else + gt_source="libc" + fi + else + gt_source="included intl directory" + fi + AC_MSG_RESULT([$gt_source]) + fi + + if test "$USE_NLS" = "yes"; then + + if test "$gt_use_preinstalled_gnugettext" = "yes"; then + if test "$gt_cv_func_gnugettext_libintl" = "yes"; then + AC_MSG_CHECKING([how to link with libintl]) + AC_MSG_RESULT([$LIBINTL]) + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) + fi + + dnl For backward compatibility. Some packages may be using this. + AC_DEFINE(HAVE_GETTEXT, 1, + [Define if the GNU gettext() function is already present or preinstalled.]) + AC_DEFINE(HAVE_DCGETTEXT, 1, + [Define if the GNU dcgettext() function is already present or preinstalled.]) + fi + + dnl We need to process the po/ directory. + POSUB=po + fi + + ifelse(gt_included_intl, yes, [ + dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL + dnl to 'yes' because some of the testsuite requires it. + if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then + BUILD_INCLUDED_LIBINTL=yes + fi + + dnl Make all variables we use known to autoconf. + AC_SUBST(BUILD_INCLUDED_LIBINTL) + AC_SUBST(USE_INCLUDED_LIBINTL) + AC_SUBST(CATOBJEXT) + + dnl For backward compatibility. Some configure.ins may be using this. + nls_cv_header_intl= + nls_cv_header_libgt= + + dnl For backward compatibility. Some Makefiles may be using this. + DATADIRNAME=share + AC_SUBST(DATADIRNAME) + + dnl For backward compatibility. Some Makefiles may be using this. + INSTOBJEXT=.mo + AC_SUBST(INSTOBJEXT) + + dnl For backward compatibility. Some Makefiles may be using this. + GENCAT=gencat + AC_SUBST(GENCAT) + + dnl For backward compatibility. Some Makefiles may be using this. + if test "$USE_INCLUDED_LIBINTL" = yes; then + INTLOBJS="\$(GETTOBJS)" + fi + AC_SUBST(INTLOBJS) + + dnl Enable libtool support if the surrounding package wishes it. + INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix + AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX) + ]) + + dnl For backward compatibility. Some Makefiles may be using this. + INTLLIBS="$LIBINTL" + AC_SUBST(INTLLIBS) + + dnl Make all documented variables known to autoconf. + AC_SUBST(LIBINTL) + AC_SUBST(LTLIBINTL) + AC_SUBST(POSUB) +]) + + +dnl Checks for all prerequisites of the intl subdirectory, +dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS, +dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL. +AC_DEFUN([AM_INTL_SUBDIR], +[ + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AM_MKINSTALLDIRS])dnl + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl + AC_REQUIRE([AC_PROG_RANLIB])dnl + AC_REQUIRE([AC_ISC_POSIX])dnl + AC_REQUIRE([AC_HEADER_STDC])dnl + AC_REQUIRE([AC_C_CONST])dnl + AC_REQUIRE([AC_C_INLINE])dnl + AC_REQUIRE([AC_TYPE_OFF_T])dnl + AC_REQUIRE([AC_TYPE_SIZE_T])dnl + AC_REQUIRE([AC_FUNC_ALLOCA])dnl + AC_REQUIRE([AC_FUNC_MMAP])dnl + AC_REQUIRE([jm_GLIBC21])dnl + AC_REQUIRE([gt_INTDIV0])dnl + AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl + AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl + AC_REQUIRE([gt_INTTYPES_PRI])dnl + + AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \ +stdlib.h string.h unistd.h sys/param.h]) + AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \ +geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \ +strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next \ +__fsetlocking]) + + AM_ICONV + AM_LANGINFO_CODESET + if test $ac_cv_header_locale_h = yes; then + AM_LC_MESSAGES + fi + + dnl intl/plural.c is generated from intl/plural.y. It requires bison, + dnl because plural.y uses bison specific features. It requires at least + dnl bison-1.26 because earlier versions generate a plural.c that doesn't + dnl compile. + dnl bison is only needed for the maintainer (who touches plural.y). But in + dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put + dnl the rule in general Makefile. Now, some people carelessly touch the + dnl files or have a broken "make" program, hence the plural.c rule will + dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not + dnl present or too old. + AC_CHECK_PROGS([INTLBISON], [bison]) + if test -z "$INTLBISON"; then + ac_verc_fail=yes + else + dnl Found it, now check the version. + AC_MSG_CHECKING([version of bison]) +changequote(<<,>>)dnl + ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'` + case $ac_prog_version in + '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;; + 1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*) +changequote([,])dnl + ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;; + *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;; + esac + AC_MSG_RESULT([$ac_prog_version]) + fi + if test $ac_verc_fail = yes; then + INTLBISON=: + fi +]) + + +dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) +AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) +# glibc21.m4 serial 2 (fileutils-4.1.3, gettext-0.10.40) +dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +# Test for the GNU C Library, version 2.1 or newer. +# From Bruno Haible. + +AC_DEFUN([jm_GLIBC21], + [ + AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer, + ac_cv_gnu_library_2_1, + [AC_EGREP_CPP([Lucky GNU user], + [ +#include +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) + Lucky GNU user + #endif +#endif + ], + ac_cv_gnu_library_2_1=yes, + ac_cv_gnu_library_2_1=no) + ] + ) + AC_SUBST(GLIBC21) + GLIBC21="$ac_cv_gnu_library_2_1" + ] +) +# iconv.m4 serial AM4 (gettext-0.11.3) +dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], +[ + dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_LIB_LINKFLAGS_BODY([iconv]) +]) + +AC_DEFUN([AM_ICONV_LINK], +[ + dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and + dnl those with the standalone portable GNU libiconv installed). + + dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV + dnl accordingly. + AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) + + dnl Add $INCICONV to CPPFLAGS before performing the following checks, + dnl because if the user has installed libiconv and not disabled its use + dnl via --without-libiconv-prefix, he wants to use it. The first + dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed. + am_save_CPPFLAGS="$CPPFLAGS" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) + + AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ + am_cv_func_iconv="no, consider installing GNU libiconv" + am_cv_lib_iconv=no + AC_TRY_LINK([#include +#include ], + [iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);], + am_cv_func_iconv=yes) + if test "$am_cv_func_iconv" != yes; then + am_save_LIBS="$LIBS" + LIBS="$LIBS $LIBICONV" + AC_TRY_LINK([#include +#include ], + [iconv_t cd = iconv_open("",""); + iconv(cd,NULL,NULL,NULL,NULL); + iconv_close(cd);], + am_cv_lib_iconv=yes + am_cv_func_iconv=yes) + LIBS="$am_save_LIBS" + fi + ]) + if test "$am_cv_func_iconv" = yes; then + AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) + fi + if test "$am_cv_lib_iconv" = yes; then + AC_MSG_CHECKING([how to link with libiconv]) + AC_MSG_RESULT([$LIBICONV]) + else + dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV + dnl either. + CPPFLAGS="$am_save_CPPFLAGS" + LIBICONV= + LTLIBICONV= + fi + AC_SUBST(LIBICONV) + AC_SUBST(LTLIBICONV) +]) + +AC_DEFUN([AM_ICONV], +[ + AM_ICONV_LINK + if test "$am_cv_func_iconv" = yes; then + AC_MSG_CHECKING([for iconv declaration]) + AC_CACHE_VAL(am_cv_proto_iconv, [ + AC_TRY_COMPILE([ +#include +#include +extern +#ifdef __cplusplus +"C" +#endif +#if defined(__STDC__) || defined(__cplusplus) +size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); +#else +size_t iconv(); +#endif +], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") + am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) + am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` + AC_MSG_RESULT([$]{ac_t:- + }[$]am_cv_proto_iconv) + AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, + [Define as const if the declaration of iconv() needs const.]) + fi +]) +# intdiv0.m4 serial 1 (gettext-0.11.3) +dnl Copyright (C) 2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +AC_DEFUN([gt_INTDIV0], +[ + AC_REQUIRE([AC_PROG_CC])dnl + AC_REQUIRE([AC_CANONICAL_HOST])dnl + + AC_CACHE_CHECK([whether integer division by zero raises SIGFPE], + gt_cv_int_divbyzero_sigfpe, + [ + AC_TRY_RUN([ +#include +#include + +static void +#ifdef __cplusplus +sigfpe_handler (int sig) +#else +sigfpe_handler (sig) int sig; +#endif +{ + /* Exit with code 0 if SIGFPE, with code 1 if any other signal. */ + exit (sig != SIGFPE); +} + +int x = 1; +int y = 0; +int z; +int nan; + +int main () +{ + signal (SIGFPE, sigfpe_handler); +/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP. */ +#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP) + signal (SIGTRAP, sigfpe_handler); +#endif +/* Linux/SPARC yields signal SIGILL. */ +#if defined (__sparc__) && defined (__linux__) + signal (SIGILL, sigfpe_handler); +#endif + + z = x / y; + nan = y / y; + exit (1); +} +], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no, + [ + # Guess based on the CPU. + case "$host_cpu" in + alpha* | i[34567]86 | m68k | s390*) + gt_cv_int_divbyzero_sigfpe="guessing yes";; + *) + gt_cv_int_divbyzero_sigfpe="guessing no";; + esac + ]) + ]) + case "$gt_cv_int_divbyzero_sigfpe" in + *yes) value=1;; + *) value=0;; + esac + AC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value, + [Define if integer division by zero raises signal SIGFPE.]) +]) +# inttypes.m4 serial 1 (gettext-0.11.4) +dnl Copyright (C) 1997-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Paul Eggert. + +# Define HAVE_INTTYPES_H if exists and doesn't clash with +# . + +AC_DEFUN([gt_HEADER_INTTYPES_H], +[ + AC_CACHE_CHECK([for inttypes.h], gt_cv_header_inttypes_h, + [ + AC_TRY_COMPILE( + [#include +#include ], + [], gt_cv_header_inttypes_h=yes, gt_cv_header_inttypes_h=no) + ]) + if test $gt_cv_header_inttypes_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1, + [Define if exists and doesn't clash with .]) + fi +]) +# inttypes_h.m4 serial 5 (gettext-0.12) +dnl Copyright (C) 1997-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Paul Eggert. + +# Define HAVE_INTTYPES_H_WITH_UINTMAX if exists, +# doesn't clash with , and declares uintmax_t. + +AC_DEFUN([jm_AC_HEADER_INTTYPES_H], +[ + AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h, + [AC_TRY_COMPILE( + [#include +#include ], + [uintmax_t i = (uintmax_t) -1;], + jm_ac_cv_header_inttypes_h=yes, + jm_ac_cv_header_inttypes_h=no)]) + if test $jm_ac_cv_header_inttypes_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1, + [Define if exists, doesn't clash with , + and declares uintmax_t. ]) + fi +]) +# inttypes-pri.m4 serial 1 (gettext-0.11.4) +dnl Copyright (C) 1997-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +# Define PRI_MACROS_BROKEN if exists and defines the PRI* +# macros to non-string values. This is the case on AIX 4.3.3. + +AC_DEFUN([gt_INTTYPES_PRI], +[ + AC_REQUIRE([gt_HEADER_INTTYPES_H]) + if test $gt_cv_header_inttypes_h = yes; then + AC_CACHE_CHECK([whether the inttypes.h PRIxNN macros are broken], + gt_cv_inttypes_pri_broken, + [ + AC_TRY_COMPILE([#include +#ifdef PRId32 +char *p = PRId32; +#endif +], [], gt_cv_inttypes_pri_broken=no, gt_cv_inttypes_pri_broken=yes) + ]) + fi + if test "$gt_cv_inttypes_pri_broken" = yes; then + AC_DEFINE_UNQUOTED(PRI_MACROS_BROKEN, 1, + [Define if exists and defines unusable PRI* macros.]) + fi +]) +# isc-posix.m4 serial 2 (gettext-0.11.2) +dnl Copyright (C) 1995-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +# This file is not needed with autoconf-2.53 and newer. Remove it in 2005. + +# This test replaces the one in autoconf. +# Currently this macro should have the same name as the autoconf macro +# because gettext's gettext.m4 (distributed in the automake package) +# still uses it. Otherwise, the use in gettext.m4 makes autoheader +# give these diagnostics: +# configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX +# configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX + +undefine([AC_ISC_POSIX]) + +AC_DEFUN([AC_ISC_POSIX], + [ + dnl This test replaces the obsolescent AC_ISC_POSIX kludge. + AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"]) + ] +) +# lcmessage.m4 serial 3 (gettext-0.11.3) +dnl Copyright (C) 1995-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995. + +# Check whether LC_MESSAGES is available in . + +AC_DEFUN([AM_LC_MESSAGES], +[ + AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES, + [AC_TRY_LINK([#include ], [return LC_MESSAGES], + am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)]) + if test $am_cv_val_LC_MESSAGES = yes; then + AC_DEFINE(HAVE_LC_MESSAGES, 1, + [Define if your file defines LC_MESSAGES.]) + fi +]) +# lib-ld.m4 serial 2 (gettext-0.12) +dnl Copyright (C) 1996-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl Subroutines of libtool.m4, +dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision +dnl with libtool.m4. + +dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no. +AC_DEFUN([AC_LIB_PROG_LD_GNU], +[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld, +[# I'd rather use --version here, but apparently some GNU ld's only accept -v. +if $LD -v 2>&1 &5; then + acl_cv_prog_gnu_ld=yes +else + acl_cv_prog_gnu_ld=no +fi]) +with_gnu_ld=$acl_cv_prog_gnu_ld +]) + +dnl From libtool-1.4. Sets the variable LD. +AC_DEFUN([AC_LIB_PROG_LD], +[AC_ARG_WITH(gnu-ld, +[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]], +test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no) +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +# Prepare PATH_SEPARATOR. +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by GCC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]* | [A-Za-z]:[\\/]*)] + [re_direlt='/[^/][^/]*/\.\./'] + # Canonicalize the path of ld + ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'` + while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do + ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(acl_cv_path_LD, +[if test -z "$LD"; then + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some GNU ld's only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then + test "$with_gnu_ld" != no && break + else + test "$with_gnu_ld" != yes && break + fi + fi + done + IFS="$ac_save_ifs" +else + acl_cv_path_LD="$LD" # Let the user override the test with a path. +fi]) +LD="$acl_cv_path_LD" +if test -n "$LD"; then + AC_MSG_RESULT($LD) +else + AC_MSG_RESULT(no) +fi +test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH]) +AC_LIB_PROG_LD_GNU +]) +# lib-link.m4 serial 4 (gettext-0.12) +dnl Copyright (C) 2001-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and +dnl the libraries corresponding to explicit and implicit dependencies. +dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and +dnl augments the CPPFLAGS variable. +AC_DEFUN([AC_LIB_LINKFLAGS], +[ + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + define([Name],[translit([$1],[./-], [___])]) + define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) + AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [ + AC_LIB_LINKFLAGS_BODY([$1], [$2]) + ac_cv_lib[]Name[]_libs="$LIB[]NAME" + ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" + ac_cv_lib[]Name[]_cppflags="$INC[]NAME" + ]) + LIB[]NAME="$ac_cv_lib[]Name[]_libs" + LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" + INC[]NAME="$ac_cv_lib[]Name[]_cppflags" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) + AC_SUBST([LIB]NAME) + AC_SUBST([LTLIB]NAME) + dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the + dnl results of this search when this library appears as a dependency. + HAVE_LIB[]NAME=yes + undefine([Name]) + undefine([NAME]) +]) + +dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode) +dnl searches for libname and the libraries corresponding to explicit and +dnl implicit dependencies, together with the specified include files and +dnl the ability to compile and link the specified testcode. If found, it +dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and +dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and +dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs +dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. +AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], +[ + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + AC_REQUIRE([AC_LIB_RPATH]) + define([Name],[translit([$1],[./-], [___])]) + define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) + + dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME + dnl accordingly. + AC_LIB_LINKFLAGS_BODY([$1], [$2]) + + dnl Add $INC[]NAME to CPPFLAGS before performing the following checks, + dnl because if the user has installed lib[]Name and not disabled its use + dnl via --without-lib[]Name-prefix, he wants to use it. + ac_save_CPPFLAGS="$CPPFLAGS" + AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) + + AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [ + ac_save_LIBS="$LIBS" + LIBS="$LIBS $LIB[]NAME" + AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no]) + LIBS="$ac_save_LIBS" + ]) + if test "$ac_cv_lib[]Name" = yes; then + HAVE_LIB[]NAME=yes + AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.]) + AC_MSG_CHECKING([how to link with lib[]$1]) + AC_MSG_RESULT([$LIB[]NAME]) + else + HAVE_LIB[]NAME=no + dnl If $LIB[]NAME didn't lead to a usable library, we don't need + dnl $INC[]NAME either. + CPPFLAGS="$ac_save_CPPFLAGS" + LIB[]NAME= + LTLIB[]NAME= + fi + AC_SUBST([HAVE_LIB]NAME) + AC_SUBST([LIB]NAME) + AC_SUBST([LTLIB]NAME) + undefine([Name]) + undefine([NAME]) +]) + +dnl Determine the platform dependent parameters needed to use rpath: +dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator, +dnl hardcode_direct, hardcode_minus_L. +AC_DEFUN([AC_LIB_RPATH], +[ + AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS + AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld + AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host + AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir + AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [ + CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ + ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh + . ./conftest.sh + rm -f ./conftest.sh + acl_cv_rpath=done + ]) + wl="$acl_cv_wl" + libext="$acl_cv_libext" + shlibext="$acl_cv_shlibext" + hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" + hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" + hardcode_direct="$acl_cv_hardcode_direct" + hardcode_minus_L="$acl_cv_hardcode_minus_L" + dnl Determine whether the user wants rpath handling at all. + AC_ARG_ENABLE(rpath, + [ --disable-rpath do not hardcode runtime library paths], + :, enable_rpath=yes) +]) + +dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and +dnl the libraries corresponding to explicit and implicit dependencies. +dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. +AC_DEFUN([AC_LIB_LINKFLAGS_BODY], +[ + define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], + [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) + dnl By default, look in $includedir and $libdir. + use_additional=yes + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + AC_LIB_ARG_WITH([lib$1-prefix], +[ --with-lib$1-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib + --without-lib$1-prefix don't search for lib$1 in includedir and libdir], +[ + if test "X$withval" = "Xno"; then + use_additional=no + else + if test "X$withval" = "X"; then + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + else + additional_includedir="$withval/include" + additional_libdir="$withval/lib" + fi + fi +]) + dnl Search the library and its dependencies in $additional_libdir and + dnl $LDFLAGS. Using breadth-first-seach. + LIB[]NAME= + LTLIB[]NAME= + INC[]NAME= + rpathdirs= + ltrpathdirs= + names_already_handled= + names_next_round='$1 $2' + while test -n "$names_next_round"; do + names_this_round="$names_next_round" + names_next_round= + for name in $names_this_round; do + already_handled= + for n in $names_already_handled; do + if test "$n" = "$name"; then + already_handled=yes + break + fi + done + if test -z "$already_handled"; then + names_already_handled="$names_already_handled $name" + dnl See if it was already located by an earlier AC_LIB_LINKFLAGS + dnl or AC_LIB_HAVE_LINKFLAGS call. + uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'` + eval value=\"\$HAVE_LIB$uppername\" + if test -n "$value"; then + if test "$value" = yes; then + eval value=\"\$LIB$uppername\" + test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" + eval value=\"\$LTLIB$uppername\" + test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" + else + dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined + dnl that this library doesn't exist. So just drop it. + : + fi + else + dnl Search the library lib$name in $additional_libdir and $LDFLAGS + dnl and the already constructed $LIBNAME/$LTLIBNAME. + found_dir= + found_la= + found_so= + found_a= + if test $use_additional = yes; then + if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then + found_dir="$additional_libdir" + found_so="$additional_libdir/lib$name.$shlibext" + if test -f "$additional_libdir/lib$name.la"; then + found_la="$additional_libdir/lib$name.la" + fi + else + if test -f "$additional_libdir/lib$name.$libext"; then + found_dir="$additional_libdir" + found_a="$additional_libdir/lib$name.$libext" + if test -f "$additional_libdir/lib$name.la"; then + found_la="$additional_libdir/lib$name.la" + fi + fi + fi + fi + if test "X$found_dir" = "X"; then + for x in $LDFLAGS $LTLIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + case "$x" in + -L*) + dir=`echo "X$x" | sed -e 's/^X-L//'` + if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then + found_dir="$dir" + found_so="$dir/lib$name.$shlibext" + if test -f "$dir/lib$name.la"; then + found_la="$dir/lib$name.la" + fi + else + if test -f "$dir/lib$name.$libext"; then + found_dir="$dir" + found_a="$dir/lib$name.$libext" + if test -f "$dir/lib$name.la"; then + found_la="$dir/lib$name.la" + fi + fi + fi + ;; + esac + if test "X$found_dir" != "X"; then + break + fi + done + fi + if test "X$found_dir" != "X"; then + dnl Found the library. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" + if test "X$found_so" != "X"; then + dnl Linking with a shared library. We attempt to hardcode its + dnl directory into the executable's runpath, unless it's the + dnl standard /usr/lib. + if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then + dnl No hardcoding is needed. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + dnl Use an explicit option to hardcode DIR into the resulting + dnl binary. + dnl Potentially add DIR to ltrpathdirs. + dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $found_dir" + fi + dnl The hardcoding into $LIBNAME is system dependent. + if test "$hardcode_direct" = yes; then + dnl Using DIR/libNAME.so during linking hardcodes DIR into the + dnl resulting binary. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then + dnl Use an explicit option to hardcode DIR into the resulting + dnl binary. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + dnl Potentially add DIR to rpathdirs. + dnl The rpathdirs will be appended to $LIBNAME at the end. + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $found_dir" + fi + else + dnl Rely on "-L$found_dir". + dnl But don't add it if it's already contained in the LDFLAGS + dnl or the already constructed $LIBNAME + haveit= + for x in $LDFLAGS $LIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" + fi + if test "$hardcode_minus_L" != no; then + dnl FIXME: Not sure whether we should use + dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" + dnl here. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" + else + dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH + dnl here, because this doesn't fit in flags passed to the + dnl compiler. So give up. No hardcoding. This affects only + dnl very old systems. + dnl FIXME: Not sure whether we should use + dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" + dnl here. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" + fi + fi + fi + fi + else + if test "X$found_a" != "X"; then + dnl Linking with a static library. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" + else + dnl We shouldn't come here, but anyway it's good to have a + dnl fallback. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" + fi + fi + dnl Assume the include files are nearby. + additional_includedir= + case "$found_dir" in + */lib | */lib/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'` + additional_includedir="$basedir/include" + ;; + esac + if test "X$additional_includedir" != "X"; then + dnl Potentially add $additional_includedir to $INCNAME. + dnl But don't add it + dnl 1. if it's the standard /usr/include, + dnl 2. if it's /usr/local/include and we are using GCC on Linux, + dnl 3. if it's already present in $CPPFLAGS or the already + dnl constructed $INCNAME, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_includedir" != "X/usr/include"; then + haveit= + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + for x in $CPPFLAGS $INC[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + dnl Really add $additional_includedir to $INCNAME. + INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" + fi + fi + fi + fi + fi + dnl Look for dependencies. + if test -n "$found_la"; then + dnl Read the .la file. It defines the variables + dnl dlname, library_names, old_library, dependency_libs, current, + dnl age, revision, installed, dlopen, dlpreopen, libdir. + save_libdir="$libdir" + case "$found_la" in + */* | *\\*) . "$found_la" ;; + *) . "./$found_la" ;; + esac + libdir="$save_libdir" + dnl We use only dependency_libs. + for dep in $dependency_libs; do + case "$dep" in + -L*) + additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. + dnl But don't add it + dnl 1. if it's the standard /usr/lib, + dnl 2. if it's /usr/local/lib and we are using GCC on Linux, + dnl 3. if it's already present in $LDFLAGS or the already + dnl constructed $LIBNAME, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_libdir" != "X/usr/lib"; then + haveit= + if test "X$additional_libdir" = "X/usr/local/lib"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + haveit= + for x in $LDFLAGS $LIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + dnl Really add $additional_libdir to $LIBNAME. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" + fi + fi + haveit= + for x in $LDFLAGS $LTLIB[]NAME; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + dnl Really add $additional_libdir to $LTLIBNAME. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" + fi + fi + fi + fi + ;; + -R*) + dir=`echo "X$dep" | sed -e 's/^X-R//'` + if test "$enable_rpath" != no; then + dnl Potentially add DIR to rpathdirs. + dnl The rpathdirs will be appended to $LIBNAME at the end. + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $dir" + fi + dnl Potentially add DIR to ltrpathdirs. + dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $dir" + fi + fi + ;; + -l*) + dnl Handle this in the next round. + names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` + ;; + *.la) + dnl Handle this in the next round. Throw away the .la's + dnl directory; it is already contained in a preceding -L + dnl option. + names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` + ;; + *) + dnl Most likely an immediate library name. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" + ;; + esac + done + fi + else + dnl Didn't find the library; assume it is in the system directories + dnl known to the linker and runtime loader. (All the system + dnl directories known to the linker should also be known to the + dnl runtime loader, otherwise the system is severely misconfigured.) + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" + fi + fi + fi + done + done + if test "X$rpathdirs" != "X"; then + if test -n "$hardcode_libdir_separator"; then + dnl Weird platform: only the last -rpath option counts, the user must + dnl pass all path elements in one option. We can arrange that for a + dnl single library, but not when more than one $LIBNAMEs are used. + alldirs= + for found_dir in $rpathdirs; do + alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir" + done + dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl. + acl_save_libdir="$libdir" + libdir="$alldirs" + eval flag=\"$hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" + else + dnl The -rpath options are cumulative. + for found_dir in $rpathdirs; do + acl_save_libdir="$libdir" + libdir="$found_dir" + eval flag=\"$hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" + done + fi + fi + if test "X$ltrpathdirs" != "X"; then + dnl When using libtool, the option that works for both libraries and + dnl executables is -R. The -R options are cumulative. + for found_dir in $ltrpathdirs; do + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" + done + fi +]) + +dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, +dnl unless already present in VAR. +dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes +dnl contains two or three consecutive elements that belong together. +AC_DEFUN([AC_LIB_APPENDTOVAR], +[ + for element in [$2]; do + haveit= + for x in $[$1]; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X$element"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + [$1]="${[$1]}${[$1]:+ }$element" + fi + done +]) +# lib-prefix.m4 serial 2 (gettext-0.12) +dnl Copyright (C) 2001-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Bruno Haible. + +dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and +dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't +dnl require excessive bracketing. +ifdef([AC_HELP_STRING], +[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], +[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) + +dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed +dnl to access previously installed libraries. The basic assumption is that +dnl a user will want packages to use other packages he previously installed +dnl with the same --prefix option. +dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate +dnl libraries, but is otherwise very convenient. +AC_DEFUN([AC_LIB_PREFIX], +[ + AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) + dnl By default, look in $includedir and $libdir. + use_additional=yes + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + AC_LIB_ARG_WITH([lib-prefix], +[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib + --without-lib-prefix don't search for libraries in includedir and libdir], +[ + if test "X$withval" = "Xno"; then + use_additional=no + else + if test "X$withval" = "X"; then + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) + else + additional_includedir="$withval/include" + additional_libdir="$withval/lib" + fi + fi +]) + if test $use_additional = yes; then + dnl Potentially add $additional_includedir to $CPPFLAGS. + dnl But don't add it + dnl 1. if it's the standard /usr/include, + dnl 2. if it's already present in $CPPFLAGS, + dnl 3. if it's /usr/local/include and we are using GCC on Linux, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_includedir" != "X/usr/include"; then + haveit= + for x in $CPPFLAGS; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + dnl Really add $additional_includedir to $CPPFLAGS. + CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" + fi + fi + fi + fi + dnl Potentially add $additional_libdir to $LDFLAGS. + dnl But don't add it + dnl 1. if it's the standard /usr/lib, + dnl 2. if it's already present in $LDFLAGS, + dnl 3. if it's /usr/local/lib and we are using GCC on Linux, + dnl 4. if it doesn't exist as a directory. + if test "X$additional_libdir" != "X/usr/lib"; then + haveit= + for x in $LDFLAGS; do + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test "X$additional_libdir" = "X/usr/local/lib"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + dnl Really add $additional_libdir to $LDFLAGS. + LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" + fi + fi + fi + fi + fi +]) + +dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, +dnl acl_final_exec_prefix, containing the values to which $prefix and +dnl $exec_prefix will expand at the end of the configure script. +AC_DEFUN([AC_LIB_PREPARE_PREFIX], +[ + dnl Unfortunately, prefix and exec_prefix get only finally determined + dnl at the end of configure. + if test "X$prefix" = "XNONE"; then + acl_final_prefix="$ac_default_prefix" + else + acl_final_prefix="$prefix" + fi + if test "X$exec_prefix" = "XNONE"; then + acl_final_exec_prefix='${prefix}' + else + acl_final_exec_prefix="$exec_prefix" + fi + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" + prefix="$acl_save_prefix" +]) + +dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the +dnl variables prefix and exec_prefix bound to the values they will have +dnl at the end of the configure script. +AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], +[ + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + $1 + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" +]) +# nls.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 1995-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995-2000. +dnl Bruno Haible , 2000-2003. + +AC_DEFUN([AM_NLS], +[ + AC_MSG_CHECKING([whether NLS is requested]) + dnl Default is enabled NLS + AC_ARG_ENABLE(nls, + [ --disable-nls do not use Native Language Support], + USE_NLS=$enableval, USE_NLS=yes) + AC_MSG_RESULT($USE_NLS) + AC_SUBST(USE_NLS) +]) + +AC_DEFUN([AM_MKINSTALLDIRS], +[ + dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly + dnl find the mkinstalldirs script in another subdir but $(top_srcdir). + dnl Try to locate it. + MKINSTALLDIRS= + if test -n "$ac_aux_dir"; then + case "$ac_aux_dir" in + /*) MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" ;; + *) MKINSTALLDIRS="\$(top_builddir)/$ac_aux_dir/mkinstalldirs" ;; + esac + fi + if test -z "$MKINSTALLDIRS"; then + MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs" + fi + AC_SUBST(MKINSTALLDIRS) +]) +# po.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 1995-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1995-2000. +dnl Bruno Haible , 2000-2003. + +dnl Checks for all prerequisites of the po subdirectory. +AC_DEFUN([AM_PO_SUBDIRS], +[ + AC_REQUIRE([AC_PROG_MAKE_SET])dnl + AC_REQUIRE([AC_PROG_INSTALL])dnl + AC_REQUIRE([AM_MKINSTALLDIRS])dnl + AC_REQUIRE([AM_NLS])dnl + + dnl Perform the following tests also if --disable-nls has been given, + dnl because they are needed for "make dist" to work. + + dnl Search for GNU msgfmt in the PATH. + dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions. + dnl The second test excludes FreeBSD msgfmt. + AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, + [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 && + (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT) + + dnl Search for GNU xgettext 0.12 or newer in the PATH. + dnl The first test excludes Solaris xgettext and early GNU xgettext versions. + dnl The second test excludes FreeBSD xgettext. + AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, + [$ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 && + (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], + :) + dnl Remove leftover from FreeBSD xgettext call. + rm -f messages.po + + dnl Search for GNU msgmerge 0.11 or newer in the PATH. + AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge, + [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :) + + dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. + dnl Test whether we really found GNU msgfmt. + if test "$GMSGFMT" != ":"; then + dnl If it is no GNU msgfmt we define it as : so that the + dnl Makefiles still can work. + if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 && + (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then + : ; + else + GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'` + AC_MSG_RESULT( + [found $GMSGFMT program is not GNU msgfmt; ignore it]) + GMSGFMT=":" + fi + fi + + dnl This could go away some day; the PATH_PROG_WITH_TEST already does it. + dnl Test whether we really found GNU xgettext. + if test "$XGETTEXT" != ":"; then + dnl If it is no GNU xgettext we define it as : so that the + dnl Makefiles still can work. + if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 && + (if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then + : ; + else + AC_MSG_RESULT( + [found xgettext program is not GNU xgettext; ignore it]) + XGETTEXT=":" + fi + dnl Remove leftover from FreeBSD xgettext call. + rm -f messages.po + fi + + AC_OUTPUT_COMMANDS([ + for ac_file in $CONFIG_FILES; do + # Support "outfile[:infile[:infile...]]" + case "$ac_file" in + *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; + esac + # PO directories have a Makefile.in generated from Makefile.in.in. + case "$ac_file" in */Makefile.in) + # Adjust a relative srcdir. + ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` + ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`" + ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` + # In autoconf-2.13 it is called $ac_given_srcdir. + # In autoconf-2.50 it is called $srcdir. + test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" + case "$ac_given_srcdir" in + .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; + /*) top_srcdir="$ac_given_srcdir" ;; + *) top_srcdir="$ac_dots$ac_given_srcdir" ;; + esac + if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then + rm -f "$ac_dir/POTFILES" + test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES" + cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES" + POMAKEFILEDEPS="POTFILES.in" + # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend + # on $ac_dir but don't depend on user-specified configuration + # parameters. + if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then + # The LINGUAS file contains the set of available languages. + if test -n "$OBSOLETE_ALL_LINGUAS"; then + test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete" + fi + ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"` + # Hide the ALL_LINGUAS assigment from automake. + eval 'ALL_LINGUAS''=$ALL_LINGUAS_' + POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS" + else + # The set of available languages was given in configure.in. + eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS' + fi + case "$ac_given_srcdir" in + .) srcdirpre= ;; + *) srcdirpre='$(srcdir)/' ;; + esac + POFILES= + GMOFILES= + UPDATEPOFILES= + DUMMYPOFILES= + for lang in $ALL_LINGUAS; do + POFILES="$POFILES $srcdirpre$lang.po" + GMOFILES="$GMOFILES $srcdirpre$lang.gmo" + UPDATEPOFILES="$UPDATEPOFILES $lang.po-update" + DUMMYPOFILES="$DUMMYPOFILES $lang.nop" + done + # CATALOGS depends on both $ac_dir and the user's LINGUAS + # environment variable. + INST_LINGUAS= + if test -n "$ALL_LINGUAS"; then + for presentlang in $ALL_LINGUAS; do + useit=no + if test "%UNSET%" != "$LINGUAS"; then + desiredlanguages="$LINGUAS" + else + desiredlanguages="$ALL_LINGUAS" + fi + for desiredlang in $desiredlanguages; do + # Use the presentlang catalog if desiredlang is + # a. equal to presentlang, or + # b. a variant of presentlang (because in this case, + # presentlang can be used as a fallback for messages + # which are not translated in the desiredlang catalog). + case "$desiredlang" in + "$presentlang"*) useit=yes;; + esac + done + if test $useit = yes; then + INST_LINGUAS="$INST_LINGUAS $presentlang" + fi + done + fi + CATALOGS= + if test -n "$INST_LINGUAS"; then + for lang in $INST_LINGUAS; do + CATALOGS="$CATALOGS $lang.gmo" + done + fi + test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile" + sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile" + for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do + if test -f "$f"; then + case "$f" in + *.orig | *.bak | *~) ;; + *) cat "$f" >> "$ac_dir/Makefile" ;; + esac + fi + done + fi + ;; + esac + done], + [# Capture the value of obsolete ALL_LINGUAS because we need it to compute + # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it + # from automake. + eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"' + # Capture the value of LINGUAS because we need it to compute CATALOGS. + LINGUAS="${LINGUAS-%UNSET%}" + ]) +]) +# progtest.m4 serial 3 (gettext-0.12) +dnl Copyright (C) 1996-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. +dnl +dnl This file can can be used in projects which are not available under +dnl the GNU General Public License or the GNU Library General Public +dnl License but which still want to provide support for the GNU gettext +dnl functionality. +dnl Please note that the actual code of the GNU gettext library is covered +dnl by the GNU Library General Public License, and the rest of the GNU +dnl gettext package package is covered by the GNU General Public License. +dnl They are *not* in the public domain. + +dnl Authors: +dnl Ulrich Drepper , 1996. + +# Search path for a program which passes the given test. + +dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR, +dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]]) +AC_DEFUN([AM_PATH_PROG_WITH_TEST], +[ +# Prepare PATH_SEPARATOR. +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + +# Find out how to test for executable files. Don't use a zero-byte file, +# as systems may use methods other than mode bits to determine executability. +cat >conf$$.file <<_ASEOF +#! /bin/sh +exit 0 +_ASEOF +chmod +x conf$$.file +if test -x conf$$.file >/dev/null 2>&1; then + ac_executable_p="test -x" +else + ac_executable_p="test -f" +fi +rm -f conf$$.file + +# Extract the first word of "$2", so it can be a program name with args. +set dummy $2; ac_word=[$]2 +AC_MSG_CHECKING([for $ac_word]) +AC_CACHE_VAL(ac_cv_path_$1, +[case "[$]$1" in + [[\\/]]* | ?:[[\\/]]*) + ac_cv_path_$1="[$]$1" # Let the user override the test with a path. + ;; + *) + ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in ifelse([$5], , $PATH, [$5]); do + IFS="$ac_save_IFS" + test -z "$ac_dir" && ac_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then + if [$3]; then + ac_cv_path_$1="$ac_dir/$ac_word$ac_exec_ext" + break 2 + fi + fi + done + done + IFS="$ac_save_IFS" +dnl If no 4th arg is given, leave the cache variable unset, +dnl so AC_PATH_PROGS will keep looking. +ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4" +])dnl + ;; +esac])dnl +$1="$ac_cv_path_$1" +if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then + AC_MSG_RESULT([$]$1) +else + AC_MSG_RESULT(no) +fi +AC_SUBST($1)dnl +]) +# stdint_h.m4 serial 3 (gettext-0.12) +dnl Copyright (C) 1997-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Paul Eggert. + +# Define HAVE_STDINT_H_WITH_UINTMAX if exists, +# doesn't clash with , and declares uintmax_t. + +AC_DEFUN([jm_AC_HEADER_STDINT_H], +[ + AC_CACHE_CHECK([for stdint.h], jm_ac_cv_header_stdint_h, + [AC_TRY_COMPILE( + [#include +#include ], + [uintmax_t i = (uintmax_t) -1;], + jm_ac_cv_header_stdint_h=yes, + jm_ac_cv_header_stdint_h=no)]) + if test $jm_ac_cv_header_stdint_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_STDINT_H_WITH_UINTMAX, 1, + [Define if exists, doesn't clash with , + and declares uintmax_t. ]) + fi +]) +# uintmax_t.m4 serial 7 (gettext-0.12) +dnl Copyright (C) 1997-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Paul Eggert. + +AC_PREREQ(2.13) + +# Define uintmax_t to 'unsigned long' or 'unsigned long long' +# if it is not already defined in or . + +AC_DEFUN([jm_AC_TYPE_UINTMAX_T], +[ + AC_REQUIRE([jm_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([jm_AC_HEADER_STDINT_H]) + if test $jm_ac_cv_header_inttypes_h = no && test $jm_ac_cv_header_stdint_h = no; then + AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG]) + test $ac_cv_type_unsigned_long_long = yes \ + && ac_type='unsigned long long' \ + || ac_type='unsigned long' + AC_DEFINE_UNQUOTED(uintmax_t, $ac_type, + [Define to unsigned long or unsigned long long + if and don't define.]) + else + AC_DEFINE(HAVE_UINTMAX_T, 1, + [Define if you have the 'uintmax_t' type in or .]) + fi +]) +# ulonglong.m4 serial 2 (fileutils-4.0.32, gettext-0.10.40) +dnl Copyright (C) 1999-2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl From Paul Eggert. + +AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG], +[ + AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long, + [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;], + [unsigned long long ullmax = (unsigned long long) -1; + return ull << i | ull >> i | ullmax / ull | ullmax % ull;], + ac_cv_type_unsigned_long_long=yes, + ac_cv_type_unsigned_long_long=no)]) + if test $ac_cv_type_unsigned_long_long = yes; then + AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1, + [Define if you have the unsigned long long type.]) + fi +]) diff --git a/autom4te.cache/output.0 b/autom4te.cache/output.0 index 4bda82683..ec92b5249 100644 --- a/autom4te.cache/output.0 +++ b/autom4te.cache/output.0 @@ -1,7 +1,7 @@ @%:@! /bin/sh @%:@ From configure.in for Bash 3.0, version 3.163, from autoconf version AC_ACVERSION. @%:@ Guess values for system-dependent variables and create Makefiles. -@%:@ Generated by GNU Autoconf 2.57 for bash 3.0-beta1. +@%:@ Generated by GNU Autoconf 2.57 for bash 3.0-rc1. @%:@ @%:@ Report bugs to . @%:@ @@ -269,8 +269,8 @@ SHELL=${CONFIG_SHELL-/bin/sh} # Identity of this package. PACKAGE_NAME='bash' PACKAGE_TARNAME='bash' -PACKAGE_VERSION='3.0-beta1' -PACKAGE_STRING='bash 3.0-beta1' +PACKAGE_VERSION='3.0-rc1' +PACKAGE_STRING='bash 3.0-rc1' PACKAGE_BUGREPORT='bug-bash@gnu.org' ac_unique_file="shell.h" @@ -784,7 +784,7 @@ if test "$ac_init_help" = "long"; then # Omit some internal or obsolete options to make the list less imposing. # This message is too long to be a string in the A/UX 3.1 sh. cat <<_ACEOF -\`configure' configures bash 3.0-beta1 to adapt to many kinds of systems. +\`configure' configures bash 3.0-rc1 to adapt to many kinds of systems. Usage: $0 [OPTION]... [VAR=VALUE]... @@ -845,7 +845,7 @@ fi if test -n "$ac_init_help"; then case $ac_init_help in - short | recursive ) echo "Configuration of bash 3.0-beta1:";; + short | recursive ) echo "Configuration of bash 3.0-rc1:";; esac cat <<\_ACEOF @@ -1000,7 +1000,7 @@ fi test -n "$ac_init_help" && exit 0 if $ac_init_version; then cat <<\_ACEOF -bash configure 3.0-beta1 +bash configure 3.0-rc1 generated by GNU Autoconf 2.57 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002 @@ -1015,7 +1015,7 @@ cat >&5 <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. -It was created by bash $as_me 3.0-beta1, which was +It was created by bash $as_me 3.0-rc1, which was generated by GNU Autoconf 2.57. Invocation command line was $ $0 $@ @@ -1384,7 +1384,7 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure. BASHVERS=3.0 -RELSTATUS=beta1 +RELSTATUS=rc1 case "$RELSTATUS" in alp*|bet*|dev*|rc*) DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;; @@ -22430,15 +22430,15 @@ _ACEOF fi if test "$ac_cv_func_getcwd" = "yes"; then -echo "$as_me:$LINENO: checking if getcwd() calls popen()" >&5 -echo $ECHO_N "checking if getcwd() calls popen()... $ECHO_C" >&6 -if test "${bash_cv_getcwd_calls_popen+set}" = set; then +echo "$as_me:$LINENO: checking if getcwd() will dynamically allocate memory" >&5 +echo $ECHO_N "checking if getcwd() will dynamically allocate memory... $ECHO_C" >&6 +if test "${bash_cv_getcwd_malloc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then - { echo "$as_me:$LINENO: WARNING: cannot check whether getcwd calls popen if cross compiling -- defaulting to no" >&5 -echo "$as_me: WARNING: cannot check whether getcwd calls popen if cross compiling -- defaulting to no" >&2;} - bash_cv_getcwd_calls_popen=no + { echo "$as_me:$LINENO: WARNING: cannot check whether getcwd allocates memory when cross-compiling -- defaulting to no" >&5 +echo "$as_me: WARNING: cannot check whether getcwd allocates memory when cross-compiling -- defaulting to no" >&2;} + bash_cv_getcwd_malloc=no else cat >conftest.$ac_ext <<_ACEOF @@ -22454,50 +22454,11 @@ cat >>conftest.$ac_ext <<_ACEOF #include #endif -#ifndef __STDC__ -#ifndef const -#define const -#endif -#endif - -int popen_called; - -FILE * -popen(command, type) - const char *command; - const char *type; -{ - popen_called = 1; - return (FILE *)NULL; -} - -FILE *_popen(command, type) - const char *command; - const char *type; -{ - return (popen (command, type)); -} - -int -pclose(stream) -FILE *stream; -{ - return 0; -} - -int -_pclose(stream) -FILE *stream; -{ - return 0; -} - main() { - char lbuf[32]; - popen_called = 0; - getcwd(lbuf, 32); - exit (popen_called); + char *xpwd; + xpwd = getcwd(0, 0); + exit (xpwd == 0); } _ACEOF @@ -22512,22 +22473,22 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - bash_cv_getcwd_calls_popen=no + bash_cv_getcwd_malloc=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) -bash_cv_getcwd_calls_popen=yes +bash_cv_getcwd_malloc=no fi rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi -echo "$as_me:$LINENO: result: $bash_cv_getcwd_calls_popen" >&5 -echo "${ECHO_T}$bash_cv_getcwd_calls_popen" >&6 -if test $bash_cv_getcwd_calls_popen = yes; then +echo "$as_me:$LINENO: result: $bash_cv_getcwd_malloc" >&5 +echo "${ECHO_T}$bash_cv_getcwd_malloc" >&6 +if test $bash_cv_getcwd_malloc = no; then cat >>confdefs.h <<\_ACEOF @%:@define GETCWD_BROKEN 1 _ACEOF @@ -24642,7 +24603,7 @@ _ASBOX } >&5 cat >&5 <<_CSEOF -This file was extended by bash $as_me 3.0-beta1, which was +This file was extended by bash $as_me 3.0-rc1, which was generated by GNU Autoconf 2.57. Invocation command line was CONFIG_FILES = $CONFIG_FILES @@ -24705,7 +24666,7 @@ _ACEOF cat >>$CONFIG_STATUS <<_ACEOF ac_cs_version="\\ -bash config.status 3.0-beta1 +bash config.status 3.0-rc1 configured by $0, generated by GNU Autoconf 2.57, with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\" diff --git a/autom4te.cache/requests b/autom4te.cache/requests index eb9c7b563..ae6b60110 100644 --- a/autom4te.cache/requests +++ b/autom4te.cache/requests @@ -15,96 +15,96 @@ 'configure.in' ], { - 'AC_FUNC_STRCOLL' => 1, - 'AC_FUNC_STRTOD' => 1, - 'AC_PROG_LIBTOOL' => 1, - 'AC_HEADER_STDC' => 1, - 'AC_PROG_CXX' => 1, - 'AC_FUNC_ALLOCA' => 1, - 'AC_FUNC_ERROR_AT_LINE' => 1, - 'AM_AUTOMAKE_VERSION' => 1, + 'AC_CONFIG_SUBDIRS' => 1, + 'AC_FUNC_CHOWN' => 1, + 'AC_HEADER_STAT' => 1, + 'AC_CONFIG_AUX_DIR' => 1, + 'AC_TYPE_MODE_T' => 1, + 'AC_HEADER_SYS_WAIT' => 1, + 'AC_CANONICAL_HOST' => 1, + 'AC_REPLACE_FNMATCH' => 1, + 'AC_STRUCT_TM' => 1, 'm4_pattern_allow' => 1, - 'AC_PROG_MAKE_SET' => 1, - 'AC_FUNC_GETGROUPS' => 1, - 'AC_C_VOLATILE' => 1, + 'AC_FUNC_SETVBUF_REVERSED' => 1, + 'AC_PROG_INSTALL' => 1, + 'AC_TYPE_OFF_T' => 1, + 'AC_FUNC_FSEEKO' => 1, + 'AC_PROG_LIBTOOL' => 1, + 'AC_FUNC_SETPGRP' => 1, + 'AC_DECL_SYS_SIGLIST' => 1, + 'AC_HEADER_DIRENT' => 1, + 'AC_FUNC_VPRINTF' => 1, + 'AC_CHECK_LIB' => 1, + 'AC_CHECK_MEMBERS' => 1, + 'AC_FUNC_STRTOD' => 1, + 'AC_HEADER_MAJOR' => 1, + 'AC_FUNC_REALLOC' => 1, + 'AC_PROG_CC' => 1, + 'AC_TYPE_PID_T' => 1, 'AC_FUNC_STRFTIME' => 1, - 'AC_PATH_X' => 1, + 'AC_FUNC_GETGROUPS' => 1, 'AC_CHECK_TYPES' => 1, - 'AC_FUNC_MKTIME' => 1, + 'AC_C_CONST' => 1, + 'AC_FUNC_STAT' => 1, + 'AC_TYPE_SIGNAL' => 1, + 'AC_FUNC_STRCOLL' => 1, 'AH_OUTPUT' => 1, - 'AC_CONFIG_SUBDIRS' => 1, - 'AC_HEADER_MAJOR' => 1, - 'AM_INIT_AUTOMAKE' => 1, - 'AC_TYPE_MODE_T' => 1, - 'm4_pattern_forbid' => 1, - 'AC_INIT' => 1, - 'AC_PROG_RANLIB' => 1, - 'AC_STRUCT_TIMEZONE' => 1, - 'AC_FUNC_OBSTACK' => 1, - 'AC_DECL_SYS_SIGLIST' => 1, + 'AC_HEADER_TIME' => 1, + 'AM_MAINTAINER_MODE' => 1, + 'AC_FUNC_ERROR_AT_LINE' => 1, + 'AC_FUNC_LSTAT' => 1, + 'AC_SUBST' => 1, 'AC_TYPE_UID_T' => 1, - 'm4_include' => 1, - 'AC_FUNC_FORK' => 1, - 'AC_PROG_CPP' => 1, - 'AC_PROG_GCC_TRADITIONAL' => 1, - 'AC_PROG_LN_S' => 1, - 'AM_CONDITIONAL' => 1, - 'AC_FUNC_SETVBUF_REVERSED' => 1, - 'include' => 1, 'AC_FUNC_GETPGRP' => 1, - 'AC_FUNC_SELECT_ARGTYPES' => 1, - 'AC_FUNC_FSEEKO' => 1, - 'AC_FUNC_UTIME_NULL' => 1, - 'AC_CONFIG_AUX_DIR' => 1, - 'AC_FUNC_STRERROR_R' => 1, - 'AC_FUNC_WAIT3' => 1, - 'AC_CONFIG_FILES' => 1, - 'AC_TYPE_SIZE_T' => 1, - 'AC_PROG_YACC' => 1, - 'AC_HEADER_STAT' => 1, - 'AC_FUNC_LSTAT' => 1, + 'm4_include' => 1, + 'AC_FUNC_ALLOCA' => 1, 'AC_FUNC_MMAP' => 1, - 'AC_CHECK_HEADERS' => 1, - 'AC_C_CONST' => 1, - 'AC_PROG_AWK' => 1, - 'AC_TYPE_SIGNAL' => 1, - 'AC_HEADER_SYS_WAIT' => 1, - 'AC_FUNC_REALLOC' => 1, - 'AC_LIBSOURCE' => 1, - 'AC_DEFINE_TRACE_LITERAL' => 1, - 'AC_CONFIG_HEADERS' => 1, - 'AC_FUNC_STAT' => 1, - 'AC_CHECK_LIB' => 1, - 'AC_REPLACE_FNMATCH' => 1, 'AC_C_INLINE' => 1, - 'AC_FUNC_GETMNTENT' => 1, - 'AC_TYPE_OFF_T' => 1, - 'AC_CANONICAL_SYSTEM' => 1, - 'AC_FUNC_SETPGRP' => 1, + 'AC_CONFIG_FILES' => 1, + 'AC_C_VOLATILE' => 1, + 'AC_FUNC_SELECT_ARGTYPES' => 1, 'AC_STRUCT_ST_BLOCKS' => 1, - 'AC_FUNC_MEMCMP' => 1, - 'AC_CHECK_FUNCS' => 1, - 'AC_HEADER_TIME' => 1, 'AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK' => 1, + 'AC_FUNC_WAIT3' => 1, + 'AC_PROG_LN_S' => 1, + 'AC_FUNC_MKTIME' => 1, + 'AC_LIBSOURCE' => 1, + 'AC_PROG_CXX' => 1, + 'AC_FUNC_MBRTOWC' => 1, + 'AM_GNU_GETTEXT' => 1, + 'AC_CONFIG_HEADERS' => 1, 'AC_FUNC_STRNLEN' => 1, - 'AM_MAINTAINER_MODE' => 1, - 'AC_TYPE_PID_T' => 1, - 'AC_PROG_INSTALL' => 1, + 'AC_CANONICAL_SYSTEM' => 1, + 'm4_pattern_forbid' => 1, + 'AC_PROG_GCC_TRADITIONAL' => 1, + 'AC_INIT' => 1, + 'AC_PATH_X' => 1, + 'AC_PROG_YACC' => 1, 'AC_PROG_LEX' => 1, - 'AC_FUNC_MBRTOWC' => 1, - 'AM_PROG_CC_C_O' => 1, + 'AC_PROG_CPP' => 1, + 'AM_INIT_AUTOMAKE' => 1, + 'AC_CHECK_HEADERS' => 1, + 'AC_TYPE_SIZE_T' => 1, 'AC_FUNC_MALLOC' => 1, - 'AC_PROG_CC' => 1, - 'AC_FUNC_CHOWN' => 1, - 'AC_STRUCT_TM' => 1, - 'AC_FUNC_GETLOADAVG' => 1, - 'AC_CANONICAL_HOST' => 1, - 'AC_FUNC_VPRINTF' => 1, 'AC_FUNC_CLOSEDIR_VOID' => 1, - 'AM_GNU_GETTEXT' => 1, - 'AC_CHECK_MEMBERS' => 1, - 'AC_HEADER_DIRENT' => 1, - 'AC_SUBST' => 1 + 'AC_FUNC_GETLOADAVG' => 1, + 'AC_CHECK_FUNCS' => 1, + 'include' => 1, + 'AC_PROG_AWK' => 1, + 'AM_AUTOMAKE_VERSION' => 1, + 'AM_PROG_CC_C_O' => 1, + 'AC_HEADER_STDC' => 1, + 'AC_PROG_RANLIB' => 1, + 'AC_FUNC_OBSTACK' => 1, + 'AM_CONDITIONAL' => 1, + 'AC_FUNC_MEMCMP' => 1, + 'AC_FUNC_GETMNTENT' => 1, + 'AC_PROG_MAKE_SET' => 1, + 'AC_FUNC_UTIME_NULL' => 1, + 'AC_STRUCT_TIMEZONE' => 1, + 'AC_DEFINE_TRACE_LITERAL' => 1, + 'AC_FUNC_FORK' => 1, + 'AC_FUNC_STRERROR_R' => 1 } ], 'Request' ) ); diff --git a/autom4te.cache/traces.0 b/autom4te.cache/traces.0 index 6a4a611e3..675ea88cd 100644 --- a/autom4te.cache/traces.0 +++ b/autom4te.cache/traces.0 @@ -1,4 +1,4 @@ -m4trace:configure.in:30: -1- AC_INIT([bash], [3.0-beta1], [bug-bash@gnu.org]) +m4trace:configure.in:30: -1- AC_INIT([bash], [3.0-rc1], [bug-bash@gnu.org]) m4trace:configure.in:30: -1- m4_pattern_forbid([^_?A[CHUM]_]) m4trace:configure.in:30: -1- m4_pattern_forbid([_AC_]) m4trace:configure.in:30: -1- m4_pattern_forbid([^LIBOBJS$], [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS']) diff --git a/builtins/cd.def b/builtins/cd.def index d63e93c51..2be86d11f 100644 --- a/builtins/cd.def +++ b/builtins/cd.def @@ -107,15 +107,16 @@ bindpwd (no_symlinks) array_needs_making = 0; } - tvar = bind_variable ("PWD", dirname); + tvar = bind_variable ("PWD", dirname ? dirname : ""); if (old_anm == 0 && array_needs_making && exported_p (tvar)) { - update_export_env_inplace ("PWD=", 4, dirname); + update_export_env_inplace ("PWD=", 4, dirname ? dirname : ""); array_needs_making = 0; } if (dirname && dirname != the_current_working_directory) free (dirname); + return (EXECUTION_SUCCESS); } diff --git a/builtins/cd.def~ b/builtins/cd.def~ index cbbe70523..d63e93c51 100644 --- a/builtins/cd.def~ +++ b/builtins/cd.def~ @@ -433,10 +433,7 @@ change_to_directory (newdir, nolinks) set_working_directory (tdir); } else - { - FREE (the_current_working_directory); - the_current_working_directory = tdir; - } + set_working_directory (tdir); return (1); } diff --git a/builtins/common.c b/builtins/common.c index 2715f28c4..3d3dd5947 100644 --- a/builtins/common.c +++ b/builtins/common.c @@ -472,23 +472,12 @@ get_working_directory (for_whom) if (the_current_working_directory == 0) { -#if defined (HAVE_PATHCONF) - dsize = pathconf (".", _PC_PATH_MAX); -#else - dsize = PATH_MAX; -#endif - - the_current_working_directory = (char *)xmalloc (dsize+1); - the_current_working_directory[0] = '\0'; - directory = getcwd (the_current_working_directory, dsize); - if (directory == 0) + the_current_working_directory = getcwd (0, 0); + if (the_current_working_directory == 0) { fprintf (stderr, _("%s: error retrieving current directory: %s: %s\n"), (for_whom && *for_whom) ? for_whom : get_name_for_error (), _(bash_getcwd_errstr), strerror (errno)); - - free (the_current_working_directory); - the_current_working_directory = (char *)NULL; return (char *)NULL; } } diff --git a/builtins/common.c.orig b/builtins/common.c.orig new file mode 100644 index 000000000..2715f28c4 --- /dev/null +++ b/builtins/common.c.orig @@ -0,0 +1,815 @@ +/* Copyright (C) 1987-2004 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + Bash is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License along + with Bash; see the file COPYING. If not, write to the Free Software + Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + +#include + +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include +# endif +# include +#endif + +#include +#include +#include "../bashtypes.h" +#include "posixstat.h" +#include + +#include + +#if defined (PREFER_STDARG) +# include +#else +# include +#endif + +#include "../bashansi.h" +#include "../bashintl.h" + +#include "../shell.h" +#include "maxpath.h" +#include "../flags.h" +#include "../jobs.h" +#include "../builtins.h" +#include "../input.h" +#include "../execute_cmd.h" +#include "../trap.h" +#include "bashgetopt.h" +#include "common.h" +#include "builtext.h" +#include + +#if defined (HISTORY) +# include "../bashhist.h" +#endif + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +extern int indirection_level, subshell_environment; +extern int line_number; +extern int last_command_exit_value; +extern int running_trap; +extern int posixly_correct; +extern char *this_command_name, *shell_name; +extern char *bash_getcwd_errstr; + +/* Used by some builtins and the mainline code. */ +sh_builtin_func_t *last_shell_builtin = (sh_builtin_func_t *)NULL; +sh_builtin_func_t *this_shell_builtin = (sh_builtin_func_t *)NULL; + +/* **************************************************************** */ +/* */ +/* Error reporting, usage, and option processing */ +/* */ +/* **************************************************************** */ + +/* This is a lot like report_error (), but it is for shell builtins + instead of shell control structures, and it won't ever exit the + shell. */ +void +#if defined (PREFER_STDARG) +builtin_error (const char *format, ...) +#else +builtin_error (format, va_alist) + const char *format; + va_dcl +#endif +{ + va_list args; + char *name; + + name = get_name_for_error (); + fprintf (stderr, "%s: ", name); + + if (interactive_shell == 0) + fprintf (stderr, "line %d: ", executing_line_number ()); + + if (this_command_name && *this_command_name) + fprintf (stderr, "%s: ", this_command_name); + + SH_VA_START (args, format); + + vfprintf (stderr, format, args); + va_end (args); + fprintf (stderr, "\n"); +} + +/* Print a usage summary for the currently-executing builtin command. */ +void +builtin_usage () +{ + if (this_command_name && *this_command_name) + fprintf (stderr, "%s: usage: ", this_command_name); + fprintf (stderr, "%s\n", current_builtin->short_doc); + fflush (stderr); +} + +/* Return if LIST is NULL else barf and jump to top_level. Used by some + builtins that do not accept arguments. */ +void +no_args (list) + WORD_LIST *list; +{ + if (list) + { + builtin_error (_("too many arguments")); + jump_to_top_level (DISCARD); + } +} + +/* Check that no options were given to the currently-executing builtin, + and return 0 if there were options. */ +int +no_options (list) + WORD_LIST *list; +{ + reset_internal_getopt (); + if (internal_getopt (list, "") != -1) + { + builtin_usage (); + return (1); + } + return (0); +} + +void +sh_needarg (s) + char *s; +{ + builtin_error (_("%s: option requires an argument"), s); +} + +void +sh_neednumarg (s) + char *s; +{ + builtin_error (_("%s: numeric argument required"), s); +} + +void +sh_notfound (s) + char *s; +{ + builtin_error (_("%s: not found"), s); +} + +/* Function called when one of the builtin commands detects an invalid + option. */ +void +sh_invalidopt (s) + char *s; +{ + builtin_error (_("%s: invalid option"), s); +} + +void +sh_invalidoptname (s) + char *s; +{ + builtin_error (_("%s: invalid option name"), s); +} + +void +sh_invalidid (s) + char *s; +{ + builtin_error (_("`%s': not a valid identifier"), s); +} + +void +sh_invalidnum (s) + char *s; +{ + builtin_error (_("%s: invalid number"), s); +} + +void +sh_invalidsig (s) + char *s; +{ + builtin_error (_("%s: invalid signal specification"), s); +} + +void +sh_badpid (s) + char *s; +{ + builtin_error (_("`%s': not a pid or valid job spec"), s); +} + +void +sh_readonly (s) + const char *s; +{ + builtin_error (_("%s: readonly variable"), s); +} + +void +sh_erange (s, desc) + char *s, *desc; +{ + if (s) + builtin_error (_("%s: %s out of range"), s, desc ? desc : _("argument")); + else + builtin_error (_("%s out of range"), desc ? desc : _("argument")); +} + +#if defined (JOB_CONTROL) +void +sh_badjob (s) + char *s; +{ + builtin_error (_("%s: no such job"), s); +} + +void +sh_nojobs (s) + char *s; +{ + if (s) + builtin_error (_("%s: no job control"), s); + else + builtin_error (_("no job control")); +} +#endif + +#if defined (RESTRICTED_SHELL) +void +sh_restricted (s) + char *s; +{ + if (s) + builtin_error (_("%s: restricted"), s); + else + builtin_error (_("restricted")); +} +#endif + +void +sh_notbuiltin (s) + char *s; +{ + builtin_error (_("%s: not a shell builtin"), s); +} + +/* **************************************************************** */ +/* */ +/* Shell positional parameter manipulation */ +/* */ +/* **************************************************************** */ + +/* Convert a WORD_LIST into a C-style argv. Return the number of elements + in the list in *IP, if IP is non-null. A convenience function for + loadable builtins; also used by `test'. */ +char ** +make_builtin_argv (list, ip) + WORD_LIST *list; + int *ip; +{ + char **argv; + + argv = strvec_from_word_list (list, 0, 1, ip); + argv[0] = this_command_name; + return argv; +} + +/* Remember LIST in $0 ... $9, and REST_OF_ARGS. If DESTRUCTIVE is + non-zero, then discard whatever the existing arguments are, else + only discard the ones that are to be replaced. */ +void +remember_args (list, destructive) + WORD_LIST *list; + int destructive; +{ + register int i; + + for (i = 1; i < 10; i++) + { + if ((destructive || list) && dollar_vars[i]) + { + free (dollar_vars[i]); + dollar_vars[i] = (char *)NULL; + } + + if (list) + { + dollar_vars[i] = savestring (list->word->word); + list = list->next; + } + } + + /* If arguments remain, assign them to REST_OF_ARGS. + Note that copy_word_list (NULL) returns NULL, and + that dispose_words (NULL) does nothing. */ + if (destructive || list) + { + dispose_words (rest_of_args); + rest_of_args = copy_word_list (list); + } + + if (destructive) + set_dollar_vars_changed (); +} + +static int changed_dollar_vars; + +/* Have the dollar variables been reset to new values since we last + checked? */ +int +dollar_vars_changed () +{ + return (changed_dollar_vars); +} + +void +set_dollar_vars_unchanged () +{ + changed_dollar_vars = 0; +} + +void +set_dollar_vars_changed () +{ + if (variable_context) + changed_dollar_vars |= ARGS_FUNC; + else if (this_shell_builtin == set_builtin) + changed_dollar_vars |= ARGS_SETBLTIN; + else + changed_dollar_vars |= ARGS_INVOC; +} + +/* **************************************************************** */ +/* */ +/* Validating numeric input and arguments */ +/* */ +/* **************************************************************** */ + +/* Read a numeric arg for this_command_name, the name of the shell builtin + that wants it. LIST is the word list that the arg is to come from. + Accept only the numeric argument; report an error if other arguments + follow. If FATAL is true, call throw_to_top_level, which exits the + shell; if not, call jump_to_top_level (DISCARD), which aborts the + current command. */ +intmax_t +get_numeric_arg (list, fatal) + WORD_LIST *list; + int fatal; +{ + intmax_t count = 1; + + if (list && list->word && ISOPTION (list->word->word, '-')) + list = list->next; + + if (list) + { + register char *arg; + + arg = list->word->word; + if (arg == 0 || (legal_number (arg, &count) == 0)) + { + sh_neednumarg (list->word->word); + if (fatal) + throw_to_top_level (); + else + jump_to_top_level (DISCARD); + } + no_args (list->next); + } + + return (count); +} + +/* Get an eight-bit status value from LIST */ +int +get_exitstat (list) + WORD_LIST *list; +{ + int status; + intmax_t sval; + char *arg; + + if (list && list->word && ISOPTION (list->word->word, '-')) + list = list->next; + + if (list == 0) + return (last_command_exit_value); + + arg = list->word->word; + if (arg == 0 || legal_number (arg, &sval) == 0) + { + sh_neednumarg (list->word->word ? list->word->word : "`'"); + return 255; + } + no_args (list->next); + + status = sval & 255; + return status; +} + +/* Return the octal number parsed from STRING, or -1 to indicate + that the string contained a bad number. */ +int +read_octal (string) + char *string; +{ + int result, digits; + + result = digits = 0; + while (*string && ISOCTAL (*string)) + { + digits++; + result = (result * 8) + (*string++ - '0'); + if (result > 0777) + return -1; + } + + if (digits == 0 || *string) + result = -1; + + return (result); +} + +/* **************************************************************** */ +/* */ +/* Manipulating the current working directory */ +/* */ +/* **************************************************************** */ + +/* Return a consed string which is the current working directory. + FOR_WHOM is the name of the caller for error printing. */ +char *the_current_working_directory = (char *)NULL; + +char * +get_working_directory (for_whom) + char *for_whom; +{ + char *directory; + size_t dsize; + + if (no_symbolic_links) + { + FREE (the_current_working_directory); + the_current_working_directory = (char *)NULL; + } + + if (the_current_working_directory == 0) + { +#if defined (HAVE_PATHCONF) + dsize = pathconf (".", _PC_PATH_MAX); +#else + dsize = PATH_MAX; +#endif + + the_current_working_directory = (char *)xmalloc (dsize+1); + the_current_working_directory[0] = '\0'; + directory = getcwd (the_current_working_directory, dsize); + if (directory == 0) + { + fprintf (stderr, _("%s: error retrieving current directory: %s: %s\n"), + (for_whom && *for_whom) ? for_whom : get_name_for_error (), + _(bash_getcwd_errstr), strerror (errno)); + + free (the_current_working_directory); + the_current_working_directory = (char *)NULL; + return (char *)NULL; + } + } + + return (savestring (the_current_working_directory)); +} + +/* Make NAME our internal idea of the current working directory. */ +void +set_working_directory (name) + char *name; +{ + FREE (the_current_working_directory); + the_current_working_directory = savestring (name); +} + +/* **************************************************************** */ +/* */ +/* Job control support functions */ +/* */ +/* **************************************************************** */ + +#if defined (JOB_CONTROL) +int +get_job_by_name (name, flags) + const char *name; + int flags; +{ + register int i, wl, cl, match, job; + register PROCESS *p; + + job = NO_JOB; + wl = strlen (name); + for (i = job_slots - 1; i >= 0; i--) + { + if (jobs[i] == 0 || ((flags & JM_STOPPED) && JOBSTATE(i) != JSTOPPED)) + continue; + + p = jobs[i]->pipe; + do + { + if (flags & JM_EXACT) + { + cl = strlen (p->command); + match = STREQN (p->command, name, cl); + } + else if (flags & JM_SUBSTRING) + match = strindex (p->command, name) != (char *)0; + else + match = STREQN (p->command, name, wl); + + if (match == 0) + { + p = p->next; + continue; + } + else if (flags & JM_FIRSTMATCH) + return i; /* return first match */ + else if (job != NO_JOB) + { + if (this_shell_builtin) + builtin_error (_("%s: ambiguous job spec"), name); + else + report_error (_("%s: ambiguous job spec"), name); + return (DUP_JOB); + } + else + job = i; + } + while (p != jobs[i]->pipe); + } + + return (job); +} + +/* Return the job spec found in LIST. */ +int +get_job_spec (list) + WORD_LIST *list; +{ + register char *word; + int job, jflags; + + if (list == 0) + return (current_job); + + word = list->word->word; + + if (*word == '\0') + return (NO_JOB); + + if (*word == '%') + word++; + + if (DIGIT (*word) && all_digits (word)) + { + job = atoi (word); + return (job > job_slots ? NO_JOB : job - 1); + } + + jflags = 0; + switch (*word) + { + case 0: + return NO_JOB; + case '%': + case '+': + return (current_job); + + case '-': + return (previous_job); + + case '?': /* Substring search requested. */ + jflags |= JM_SUBSTRING; + word++; + /* FALLTHROUGH */ + + default: + return get_job_by_name (word, jflags); + } +} +#endif /* JOB_CONTROL */ + +/* + * NOTE: `kill' calls this function with forcecols == 0 + */ +int +display_signal_list (list, forcecols) + WORD_LIST *list; + int forcecols; +{ + register int i, column; + char *name; + int result, signum, dflags; + intmax_t lsignum; + + result = EXECUTION_SUCCESS; + if (!list) + { + for (i = 1, column = 0; i < NSIG; i++) + { + name = signal_name (i); + if (STREQN (name, "SIGJUNK", 7) || STREQN (name, "Unknown", 7)) + continue; + + if (posixly_correct && !forcecols) + { + /* This is for the kill builtin. POSIX.2 says the signal names + are displayed without the `SIG' prefix. */ + if (STREQN (name, "SIG", 3)) + name += 3; + printf ("%s%s", name, (i == NSIG - 1) ? "" : " "); + } + else + { + printf ("%2d) %s", i, name); + + if (++column < 4) + printf ("\t"); + else + { + printf ("\n"); + column = 0; + } + } + } + + if ((posixly_correct && !forcecols) || column != 0) + printf ("\n"); + return result; + } + + /* List individual signal names or numbers. */ + while (list) + { + if (legal_number (list->word->word, &lsignum)) + { + /* This is specified by Posix.2 so that exit statuses can be + mapped into signal numbers. */ + if (lsignum > 128) + lsignum -= 128; + if (lsignum < 0 || lsignum >= NSIG) + { + sh_invalidsig (list->word->word); + result = EXECUTION_FAILURE; + list = list->next; + continue; + } + + signum = lsignum; + name = signal_name (signum); + if (STREQN (name, "SIGJUNK", 7) || STREQN (name, "Unknown", 7)) + { + list = list->next; + continue; + } +#if defined (JOB_CONTROL) + /* POSIX.2 says that `kill -l signum' prints the signal name without + the `SIG' prefix. */ + printf ("%s\n", (this_shell_builtin == kill_builtin) ? name + 3 : name); +#else + printf ("%s\n", name); +#endif + } + else + { + dflags = DSIG_NOCASE; + if (posixly_correct == 0 || this_shell_builtin != kill_builtin) + dflags |= DSIG_SIGPREFIX; + signum = decode_signal (list->word->word, dflags); + if (signum == NO_SIG) + { + sh_invalidsig (list->word->word); + result = EXECUTION_FAILURE; + list = list->next; + continue; + } + printf ("%d\n", signum); + } + list = list->next; + } + return (result); +} + +/* **************************************************************** */ +/* */ +/* Finding builtin commands and their functions */ +/* */ +/* **************************************************************** */ + +/* Perform a binary search and return the address of the builtin function + whose name is NAME. If the function couldn't be found, or the builtin + is disabled or has no function associated with it, return NULL. + Return the address of the builtin. + DISABLED_OKAY means find it even if the builtin is disabled. */ +struct builtin * +builtin_address_internal (name, disabled_okay) + char *name; + int disabled_okay; +{ + int hi, lo, mid, j; + + hi = num_shell_builtins - 1; + lo = 0; + + while (lo <= hi) + { + mid = (lo + hi) / 2; + + j = shell_builtins[mid].name[0] - name[0]; + + if (j == 0) + j = strcmp (shell_builtins[mid].name, name); + + if (j == 0) + { + /* It must have a function pointer. It must be enabled, or we + must have explicitly allowed disabled functions to be found, + and it must not have been deleted. */ + if (shell_builtins[mid].function && + ((shell_builtins[mid].flags & BUILTIN_DELETED) == 0) && + ((shell_builtins[mid].flags & BUILTIN_ENABLED) || disabled_okay)) + return (&shell_builtins[mid]); + else + return ((struct builtin *)NULL); + } + if (j > 0) + hi = mid - 1; + else + lo = mid + 1; + } + return ((struct builtin *)NULL); +} + +/* Return the pointer to the function implementing builtin command NAME. */ +sh_builtin_func_t * +find_shell_builtin (name) + char *name; +{ + current_builtin = builtin_address_internal (name, 0); + return (current_builtin ? current_builtin->function : (sh_builtin_func_t *)NULL); +} + +/* Return the address of builtin with NAME, whether it is enabled or not. */ +sh_builtin_func_t * +builtin_address (name) + char *name; +{ + current_builtin = builtin_address_internal (name, 1); + return (current_builtin ? current_builtin->function : (sh_builtin_func_t *)NULL); +} + +/* Return the function implementing the builtin NAME, but only if it is a + POSIX.2 special builtin. */ +sh_builtin_func_t * +find_special_builtin (name) + char *name; +{ + current_builtin = builtin_address_internal (name, 0); + return ((current_builtin && (current_builtin->flags & SPECIAL_BUILTIN)) ? + current_builtin->function : + (sh_builtin_func_t *)NULL); +} + +static int +shell_builtin_compare (sbp1, sbp2) + struct builtin *sbp1, *sbp2; +{ + int result; + + if ((result = sbp1->name[0] - sbp2->name[0]) == 0) + result = strcmp (sbp1->name, sbp2->name); + + return (result); +} + +/* Sort the table of shell builtins so that the binary search will work + in find_shell_builtin. */ +void +initialize_shell_builtins () +{ + qsort (shell_builtins, num_shell_builtins, sizeof (struct builtin), + (QSFUNC *)shell_builtin_compare); +} diff --git a/builtins/common.c~ b/builtins/common.c~ index 012d95846..2715f28c4 100644 --- a/builtins/common.c~ +++ b/builtins/common.c~ @@ -483,7 +483,7 @@ get_working_directory (for_whom) directory = getcwd (the_current_working_directory, dsize); if (directory == 0) { - fprintf (stderr, _("%s: could not get current directory: %s: %s\n"), + fprintf (stderr, _("%s: error retrieving current directory: %s: %s\n"), (for_whom && *for_whom) ? for_whom : get_name_for_error (), _(bash_getcwd_errstr), strerror (errno)); diff --git a/configure b/configure index 9c5906a14..043e87cd9 100755 --- a/configure +++ b/configure @@ -1,7 +1,7 @@ #! /bin/sh # From configure.in for Bash 3.0, version 3.163, from autoconf version AC_ACVERSION. # Guess values for system-dependent variables and create Makefiles. -# Generated by GNU Autoconf 2.57 for bash 3.0-beta1. +# Generated by GNU Autoconf 2.57 for bash 3.0-rc1. # # Report bugs to . # @@ -269,8 +269,8 @@ SHELL=${CONFIG_SHELL-/bin/sh} # Identity of this package. PACKAGE_NAME='bash' PACKAGE_TARNAME='bash' -PACKAGE_VERSION='3.0-beta1' -PACKAGE_STRING='bash 3.0-beta1' +PACKAGE_VERSION='3.0-rc1' +PACKAGE_STRING='bash 3.0-rc1' PACKAGE_BUGREPORT='bug-bash@gnu.org' ac_unique_file="shell.h" @@ -784,7 +784,7 @@ if test "$ac_init_help" = "long"; then # Omit some internal or obsolete options to make the list less imposing. # This message is too long to be a string in the A/UX 3.1 sh. cat <<_ACEOF -\`configure' configures bash 3.0-beta1 to adapt to many kinds of systems. +\`configure' configures bash 3.0-rc1 to adapt to many kinds of systems. Usage: $0 [OPTION]... [VAR=VALUE]... @@ -845,7 +845,7 @@ fi if test -n "$ac_init_help"; then case $ac_init_help in - short | recursive ) echo "Configuration of bash 3.0-beta1:";; + short | recursive ) echo "Configuration of bash 3.0-rc1:";; esac cat <<\_ACEOF @@ -1000,7 +1000,7 @@ fi test -n "$ac_init_help" && exit 0 if $ac_init_version; then cat <<\_ACEOF -bash configure 3.0-beta1 +bash configure 3.0-rc1 generated by GNU Autoconf 2.57 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002 @@ -1015,7 +1015,7 @@ cat >&5 <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. -It was created by bash $as_me 3.0-beta1, which was +It was created by bash $as_me 3.0-rc1, which was generated by GNU Autoconf 2.57. Invocation command line was $ $0 $@ @@ -1384,7 +1384,7 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure. BASHVERS=3.0 -RELSTATUS=beta1 +RELSTATUS=rc1 case "$RELSTATUS" in alp*|bet*|dev*|rc*) DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;; @@ -22430,15 +22430,15 @@ _ACEOF fi if test "$ac_cv_func_getcwd" = "yes"; then -echo "$as_me:$LINENO: checking if getcwd() calls popen()" >&5 -echo $ECHO_N "checking if getcwd() calls popen()... $ECHO_C" >&6 -if test "${bash_cv_getcwd_calls_popen+set}" = set; then +echo "$as_me:$LINENO: checking if getcwd() will dynamically allocate memory" >&5 +echo $ECHO_N "checking if getcwd() will dynamically allocate memory... $ECHO_C" >&6 +if test "${bash_cv_getcwd_malloc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then - { echo "$as_me:$LINENO: WARNING: cannot check whether getcwd calls popen if cross compiling -- defaulting to no" >&5 -echo "$as_me: WARNING: cannot check whether getcwd calls popen if cross compiling -- defaulting to no" >&2;} - bash_cv_getcwd_calls_popen=no + { echo "$as_me:$LINENO: WARNING: cannot check whether getcwd allocates memory when cross-compiling -- defaulting to no" >&5 +echo "$as_me: WARNING: cannot check whether getcwd allocates memory when cross-compiling -- defaulting to no" >&2;} + bash_cv_getcwd_malloc=no else cat >conftest.$ac_ext <<_ACEOF @@ -22454,50 +22454,11 @@ cat >>conftest.$ac_ext <<_ACEOF #include #endif -#ifndef __STDC__ -#ifndef const -#define const -#endif -#endif - -int popen_called; - -FILE * -popen(command, type) - const char *command; - const char *type; -{ - popen_called = 1; - return (FILE *)NULL; -} - -FILE *_popen(command, type) - const char *command; - const char *type; -{ - return (popen (command, type)); -} - -int -pclose(stream) -FILE *stream; -{ - return 0; -} - -int -_pclose(stream) -FILE *stream; -{ - return 0; -} - main() { - char lbuf[32]; - popen_called = 0; - getcwd(lbuf, 32); - exit (popen_called); + char *xpwd; + xpwd = getcwd(0, 0); + exit (xpwd == 0); } _ACEOF @@ -22512,22 +22473,22 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - bash_cv_getcwd_calls_popen=no + bash_cv_getcwd_malloc=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) -bash_cv_getcwd_calls_popen=yes +bash_cv_getcwd_malloc=no fi rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi -echo "$as_me:$LINENO: result: $bash_cv_getcwd_calls_popen" >&5 -echo "${ECHO_T}$bash_cv_getcwd_calls_popen" >&6 -if test $bash_cv_getcwd_calls_popen = yes; then +echo "$as_me:$LINENO: result: $bash_cv_getcwd_malloc" >&5 +echo "${ECHO_T}$bash_cv_getcwd_malloc" >&6 +if test $bash_cv_getcwd_malloc = no; then cat >>confdefs.h <<\_ACEOF #define GETCWD_BROKEN 1 _ACEOF @@ -24642,7 +24603,7 @@ _ASBOX } >&5 cat >&5 <<_CSEOF -This file was extended by bash $as_me 3.0-beta1, which was +This file was extended by bash $as_me 3.0-rc1, which was generated by GNU Autoconf 2.57. Invocation command line was CONFIG_FILES = $CONFIG_FILES @@ -24705,7 +24666,7 @@ _ACEOF cat >>$CONFIG_STATUS <<_ACEOF ac_cs_version="\\ -bash config.status 3.0-beta1 +bash config.status 3.0-rc1 configured by $0, generated by GNU Autoconf 2.57, with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\" diff --git a/configure.in b/configure.in index 11332bb92..ade5b8db8 100644 --- a/configure.in +++ b/configure.in @@ -25,7 +25,7 @@ dnl Process this file with autoconf to produce a configure script. AC_REVISION([for Bash 3.0, version 3.163, from autoconf version] AC_ACVERSION)dnl define(bashvers, 3.0) -define(relstatus, beta1) +define(relstatus, rc1) AC_INIT(bash, bashvers-relstatus, bug-bash@gnu.org) diff --git a/doc/bash.0 b/doc/bash.0 index ba8342399..14782c351 100644 --- a/doc/bash.0 +++ b/doc/bash.0 @@ -1940,19 +1940,25 @@ CCOONNDDIITTIIOONNAALL EEXXPPRREESSSSIIOONNSS builtin below. --zz _s_t_r_i_n_g True if the length of _s_t_r_i_n_g is zero. + _s_t_r_i_n_g --nn _s_t_r_i_n_g - _s_t_r_i_n_g True if the length of _s_t_r_i_n_g is non-zero. + True if the length of _s_t_r_i_n_g is non-zero. + _s_t_r_i_n_g_1 ==== _s_t_r_i_n_g_2 True if the strings are equal. == may be used in place of ==== for strict POSIX compliance. + _s_t_r_i_n_g_1 !!== _s_t_r_i_n_g_2 True if the strings are not equal. + _s_t_r_i_n_g_1 << _s_t_r_i_n_g_2 True if _s_t_r_i_n_g_1 sorts before _s_t_r_i_n_g_2 lexicographically in the current locale. + _s_t_r_i_n_g_1 >> _s_t_r_i_n_g_2 True if _s_t_r_i_n_g_1 sorts after _s_t_r_i_n_g_2 lexicographically in the current locale. + _a_r_g_1 OOPP _a_r_g_2 OOPP is one of --eeqq, --nnee, --lltt, --llee, --ggtt, or --ggee. These arithmetic binary operators return true if _a_r_g_1 is equal to, not equal to, @@ -2019,38 +2025,39 @@ CCOOMMMMAANNDD EEXXEECCUUTTIIOONN an exit status of 127. If the search is successful, or if the command name contains one or - more slashes, the shell executes the named program in a separate execu- - tion environment. Argument 0 is set to the name given, and the remain- - ing arguments to the command are set to the arguments given, if any. - - If this execution fails because the file is not in executable format, - and the file is not a directory, it is assumed to be a _s_h_e_l_l _s_c_r_i_p_t, a - file containing shell commands. A subshell is spawned to execute it. - This subshell reinitializes itself, so that the effect is as if a new - shell had been invoked to handle the script, with the exception that - the locations of commands remembered by the parent (see hhaasshh below + more slashes, the shell executes the named program in a separate + execution environment. Argument 0 is set to the name given, and the + remaining arguments to the command are set to the arguments given, if + any. + + If this execution fails because the file is not in executable format, + and the file is not a directory, it is assumed to be a _s_h_e_l_l _s_c_r_i_p_t, a + file containing shell commands. A subshell is spawned to execute it. + This subshell reinitializes itself, so that the effect is as if a new + shell had been invoked to handle the script, with the exception that + the locations of commands remembered by the parent (see hhaasshh below under SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS) are retained by the child. - If the program is a file beginning with ##!!, the remainder of the first - line specifies an interpreter for the program. The shell executes the + If the program is a file beginning with ##!!, the remainder of the first + line specifies an interpreter for the program. The shell executes the specified interpreter on operating systems that do not handle this exe- cutable format themselves. The arguments to the interpreter consist of - a single optional argument following the interpreter name on the first - line of the program, followed by the name of the program, followed by + a single optional argument following the interpreter name on the first + line of the program, followed by the name of the program, followed by the command arguments, if any. CCOOMMMMAANNDD EEXXEECCUUTTIIOONN EENNVVIIRROONNMMEENNTT - The shell has an _e_x_e_c_u_t_i_o_n _e_n_v_i_r_o_n_m_e_n_t, which consists of the follow- + The shell has an _e_x_e_c_u_t_i_o_n _e_n_v_i_r_o_n_m_e_n_t, which consists of the follow- ing: - +o open files inherited by the shell at invocation, as modified by + +o open files inherited by the shell at invocation, as modified by redirections supplied to the eexxeecc builtin - +o the current working directory as set by ccdd, ppuusshhdd, or ppooppdd, or + +o the current working directory as set by ccdd, ppuusshhdd, or ppooppdd, or inherited by the shell at invocation - +o the file creation mode mask as set by uummaasskk or inherited from + +o the file creation mode mask as set by uummaasskk or inherited from the shell's parent +o current traps set by ttrraapp @@ -2058,223 +2065,223 @@ CCOOMMMMAANNDD EEXXEECCUUTTIIOONN EENNVVIIRROONNMMEENN +o shell parameters that are set by variable assignment or with sseett or inherited from the shell's parent in the environment - +o shell functions defined during execution or inherited from the + +o shell functions defined during execution or inherited from the shell's parent in the environment - +o options enabled at invocation (either by default or with com- + +o options enabled at invocation (either by default or with com- mand-line arguments) or by sseett +o options enabled by sshhoopptt +o shell aliases defined with aalliiaass - +o various process IDs, including those of background jobs, the + +o various process IDs, including those of background jobs, the value of $$$$, and the value of $$PPPPIIDD - When a simple command other than a builtin or shell function is to be - executed, it is invoked in a separate execution environment that con- - sists of the following. Unless otherwise noted, the values are inher- + When a simple command other than a builtin or shell function is to be + executed, it is invoked in a separate execution environment that con- + sists of the following. Unless otherwise noted, the values are inher- ited from the shell. - +o the shell's open files, plus any modifications and additions + +o the shell's open files, plus any modifications and additions specified by redirections to the command +o the current working directory +o the file creation mode mask - +o shell variables and functions marked for export, along with + +o shell variables and functions marked for export, along with variables exported for the command, passed in the environment +o traps caught by the shell are reset to the values inherited from the shell's parent, and traps ignored by the shell are ignored - A command invoked in this separate environment cannot affect the + A command invoked in this separate environment cannot affect the shell's execution environment. - Command substitution, commands grouped with parentheses, and asyn- - chronous commands are invoked in a subshell environment that is a - duplicate of the shell environment, except that traps caught by the - shell are reset to the values that the shell inherited from its parent + Command substitution, commands grouped with parentheses, and + asynchronous commands are invoked in a subshell environment that is a + duplicate of the shell environment, except that traps caught by the + shell are reset to the values that the shell inherited from its parent at invocation. Builtin commands that are invoked as part of a pipeline - are also executed in a subshell environment. Changes made to the sub- + are also executed in a subshell environment. Changes made to the sub- shell environment cannot affect the shell's execution environment. - If a command is followed by a && and job control is not active, the - default standard input for the command is the empty file _/_d_e_v_/_n_u_l_l. - Otherwise, the invoked command inherits the file descriptors of the + If a command is followed by a && and job control is not active, the + default standard input for the command is the empty file _/_d_e_v_/_n_u_l_l. + Otherwise, the invoked command inherits the file descriptors of the calling shell as modified by redirections. EENNVVIIRROONNMMEENNTT - When a program is invoked it is given an array of strings called the + When a program is invoked it is given an array of strings called the _e_n_v_i_r_o_n_m_e_n_t. This is a list of _n_a_m_e-_v_a_l_u_e pairs, of the form _n_a_m_e=_v_a_l_u_e. - The shell provides several ways to manipulate the environment. On + The shell provides several ways to manipulate the environment. On invocation, the shell scans its own environment and creates a parameter - for each name found, automatically marking it for _e_x_p_o_r_t to child pro- - cesses. Executed commands inherit the environment. The eexxppoorrtt and - ddeeccllaarree --xx commands allow parameters and functions to be added to and + for each name found, automatically marking it for _e_x_p_o_r_t to child pro- + cesses. Executed commands inherit the environment. The eexxppoorrtt and + ddeeccllaarree --xx commands allow parameters and functions to be added to and deleted from the environment. If the value of a parameter in the envi- - ronment is modified, the new value becomes part of the environment, - replacing the old. The environment inherited by any executed command - consists of the shell's initial environment, whose values may be modi- - fied in the shell, less any pairs removed by the uunnsseett command, plus + ronment is modified, the new value becomes part of the environment, + replacing the old. The environment inherited by any executed command + consists of the shell's initial environment, whose values may be modi- + fied in the shell, less any pairs removed by the uunnsseett command, plus any additions via the eexxppoorrtt and ddeeccllaarree --xx commands. - The environment for any _s_i_m_p_l_e _c_o_m_m_a_n_d or function may be augmented - temporarily by prefixing it with parameter assignments, as described + The environment for any _s_i_m_p_l_e _c_o_m_m_a_n_d or function may be augmented + temporarily by prefixing it with parameter assignments, as described above in PPAARRAAMMEETTEERRSS. These assignment statements affect only the envi- ronment seen by that command. - If the --kk option is set (see the sseett builtin command below), then _a_l_l - parameter assignments are placed in the environment for a command, not + If the --kk option is set (see the sseett builtin command below), then _a_l_l + parameter assignments are placed in the environment for a command, not just those that precede the command name. - When bbaasshh invokes an external command, the variable __ is set to the - full file name of the command and passed to that command in its envi- + When bbaasshh invokes an external command, the variable __ is set to the + full file name of the command and passed to that command in its envi- ronment. EEXXIITT SSTTAATTUUSS For the shell's purposes, a command which exits with a zero exit status - has succeeded. An exit status of zero indicates success. A non-zero - exit status indicates failure. When a command terminates on a fatal + has succeeded. An exit status of zero indicates success. A non-zero + exit status indicates failure. When a command terminates on a fatal signal _N, bbaasshh uses the value of 128+_N as the exit status. - If a command is not found, the child process created to execute it - returns a status of 127. If a command is found but is not executable, + If a command is not found, the child process created to execute it + returns a status of 127. If a command is found but is not executable, the return status is 126. If a command fails because of an error during expansion or redirection, the exit status is greater than zero. - Shell builtin commands return a status of 0 (_t_r_u_e) if successful, and - non-zero (_f_a_l_s_e) if an error occurs while they execute. All builtins + Shell builtin commands return a status of 0 (_t_r_u_e) if successful, and + non-zero (_f_a_l_s_e) if an error occurs while they execute. All builtins return an exit status of 2 to indicate incorrect usage. - BBaasshh itself returns the exit status of the last command executed, - unless a syntax error occurs, in which case it exits with a non-zero + BBaasshh itself returns the exit status of the last command executed, + unless a syntax error occurs, in which case it exits with a non-zero value. See also the eexxiitt builtin command below. SSIIGGNNAALLSS - When bbaasshh is interactive, in the absence of any traps, it ignores + When bbaasshh is interactive, in the absence of any traps, it ignores SSIIGGTTEERRMM (so that kkiillll 00 does not kill an interactive shell), and SSIIGGIINNTT - is caught and handled (so that the wwaaiitt builtin is interruptible). In - all cases, bbaasshh ignores SSIIGGQQUUIITT. If job control is in effect, bbaasshh + is caught and handled (so that the wwaaiitt builtin is interruptible). In + all cases, bbaasshh ignores SSIIGGQQUUIITT. If job control is in effect, bbaasshh ignores SSIIGGTTTTIINN, SSIIGGTTTTOOUU, and SSIIGGTTSSTTPP. Non-builtin commands run by bbaasshh have signal handlers set to the values - inherited by the shell from its parent. When job control is not in - effect, asynchronous commands ignore SSIIGGIINNTT and SSIIGGQQUUIITT in addition to - these inherited handlers. Commands run as a result of command substi- - tution ignore the keyboard-generated job control signals SSIIGGTTTTIINN, SSIIGGTT-- - TTOOUU, and SSIIGGTTSSTTPP. - - The shell exits by default upon receipt of a SSIIGGHHUUPP. Before exiting, - an interactive shell resends the SSIIGGHHUUPP to all jobs, running or + inherited by the shell from its parent. When job control is not in + effect, asynchronous commands ignore SSIIGGIINNTT and SSIIGGQQUUIITT in addition to + these inherited handlers. Commands run as a result of command substi- + tution ignore the keyboard-generated job control signals SSIIGGTTTTIINN, + SSIIGGTTTTOOUU, and SSIIGGTTSSTTPP. + + The shell exits by default upon receipt of a SSIIGGHHUUPP. Before exiting, + an interactive shell resends the SSIIGGHHUUPP to all jobs, running or stopped. Stopped jobs are sent SSIIGGCCOONNTT to ensure that they receive the - SSIIGGHHUUPP. To prevent the shell from sending the signal to a particular - job, it should be removed from the jobs table with the ddiissoowwnn builtin - (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below) or marked to not receive SSIIGGHHUUPP + SSIIGGHHUUPP. To prevent the shell from sending the signal to a particular + job, it should be removed from the jobs table with the ddiissoowwnn builtin + (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below) or marked to not receive SSIIGGHHUUPP using ddiissoowwnn --hh. - If the hhuuppoonneexxiitt shell option has been set with sshhoopptt, bbaasshh sends a + If the hhuuppoonneexxiitt shell option has been set with sshhoopptt, bbaasshh sends a SSIIGGHHUUPP to all jobs when an interactive login shell exits. - If 0for which a trap has been set, the trap will not be executed until - the command completes. When bbaasshh is waiting for an asynchronous com- - mand via the wwaaiitt builtin, the reception of a signal for which a trap - has been set will cause the wwaaiitt builtin to return immediately with an - exit status greater than 128, immediately after which the trap is exe- + If 0for which a trap has been set, the trap will not be executed until + the command completes. When bbaasshh is waiting for an asynchronous com- + mand via the wwaaiitt builtin, the reception of a signal for which a trap + has been set will cause the wwaaiitt builtin to return immediately with an + exit status greater than 128, immediately after which the trap is exe- cuted. JJOOBB CCOONNTTRROOLL - _J_o_b _c_o_n_t_r_o_l refers to the ability to selectively stop (_s_u_s_p_e_n_d) the + _J_o_b _c_o_n_t_r_o_l refers to the ability to selectively stop (_s_u_s_p_e_n_d) the execution of processes and continue (_r_e_s_u_m_e) their execution at a later - point. A user typically employs this facility via an interactive + point. A user typically employs this facility via an interactive interface supplied jointly by the system's terminal driver and bbaasshh. - The shell associates a _j_o_b with each pipeline. It keeps a table of - currently executing jobs, which may be listed with the jjoobbss command. - When bbaasshh starts a job asynchronously (in the _b_a_c_k_g_r_o_u_n_d), it prints a + The shell associates a _j_o_b with each pipeline. It keeps a table of + currently executing jobs, which may be listed with the jjoobbss command. + When bbaasshh starts a job asynchronously (in the _b_a_c_k_g_r_o_u_n_d), it prints a line that looks like: [1] 25647 indicating that this job is job number 1 and that the process ID of the last process in the pipeline associated with this job is 25647. All of - the processes in a single pipeline are members of the same job. BBaasshh + the processes in a single pipeline are members of the same job. BBaasshh uses the _j_o_b abstraction as the basis for job control. - To facilitate the implementation of the user interface to job control, + To facilitate the implementation of the user interface to job control, the operating system maintains the notion of a _c_u_r_r_e_n_t _t_e_r_m_i_n_a_l _p_r_o_c_e_s_s _g_r_o_u_p _I_D. Members of this process group (processes whose process group ID is equal to the current terminal process group ID) receive keyboard- - generated signals such as SSIIGGIINNTT. These processes are said to be in - the _f_o_r_e_g_r_o_u_n_d. _B_a_c_k_g_r_o_u_n_d processes are those whose process group ID + generated signals such as SSIIGGIINNTT. These processes are said to be in + the _f_o_r_e_g_r_o_u_n_d. _B_a_c_k_g_r_o_u_n_d processes are those whose process group ID differs from the terminal's; such processes are immune to keyboard-gen- - erated signals. Only foreground processes are allowed to read from or + erated signals. Only foreground processes are allowed to read from or write to the terminal. Background processes which attempt to read from (write to) the terminal are sent a SSIIGGTTTTIINN ((SSIIGGTTTTOOUU)) signal by the ter- minal driver, which, unless caught, suspends the process. - If the operating system on which bbaasshh is running supports job control, + If the operating system on which bbaasshh is running supports job control, bbaasshh contains facilities to use it. Typing the _s_u_s_p_e_n_d character (typ- ically ^^ZZ, Control-Z) while a process is running causes that process to - be stopped and returns control to bbaasshh. Typing the _d_e_l_a_y_e_d _s_u_s_p_e_n_d - character (typically ^^YY, Control-Y) causes the process to be stopped - when it attempts to read input from the terminal, and control to be - returned to bbaasshh. The user may then manipulate the state of this job, - using the bbgg command to continue it in the background, the ffgg command + be stopped and returns control to bbaasshh. Typing the _d_e_l_a_y_e_d _s_u_s_p_e_n_d + character (typically ^^YY, Control-Y) causes the process to be stopped + when it attempts to read input from the terminal, and control to be + returned to bbaasshh. The user may then manipulate the state of this job, + using the bbgg command to continue it in the background, the ffgg command to continue it in the foreground, or the kkiillll command to kill it. A ^^ZZ takes effect immediately, and has the additional side effect of causing pending output and typeahead to be discarded. There are a number of ways to refer to a job in the shell. The charac- ter %% introduces a job name. Job number _n may be referred to as %%nn. A - job may also be referred to using a prefix of the name used to start - it, or using a substring that appears in its command line. For exam- + job may also be referred to using a prefix of the name used to start + it, or using a substring that appears in its command line. For exam- ple, %%ccee refers to a stopped ccee job. If a prefix matches more than one - job, bbaasshh reports an error. Using %%??ccee, on the other hand, refers to + job, bbaasshh reports an error. Using %%??ccee, on the other hand, refers to any job containing the string ccee in its command line. If the substring - matches more than one job, bbaasshh reports an error. The symbols %%%% and - %%++ refer to the shell's notion of the _c_u_r_r_e_n_t _j_o_b, which is the last - job stopped while it was in the foreground or started in the back- - ground. The _p_r_e_v_i_o_u_s _j_o_b may be referenced using %%--. In output per- + matches more than one job, bbaasshh reports an error. The symbols %%%% and + %%++ refer to the shell's notion of the _c_u_r_r_e_n_t _j_o_b, which is the last + job stopped while it was in the foreground or started in the back- + ground. The _p_r_e_v_i_o_u_s _j_o_b may be referenced using %%--. In output per- taining to jobs (e.g., the output of the jjoobbss command), the current job is always flagged with a ++, and the previous job with a --. - Simply naming a job can be used to bring it into the foreground: %%11 is - a synonym for ````ffgg %%11'''', bringing job 1 from the background into the - foreground. Similarly, ````%%11 &&'''' resumes job 1 in the background, + Simply naming a job can be used to bring it into the foreground: %%11 is + a synonym for ````ffgg %%11'''', bringing job 1 from the background into the + foreground. Similarly, ````%%11 &&'''' resumes job 1 in the background, equivalent to ````bbgg %%11''''. - The shell learns immediately whenever a job changes state. Normally, + The shell learns immediately whenever a job changes state. Normally, bbaasshh waits until it is about to print a prompt before reporting changes - in a job's status so as to not interrupt any other output. If the --bb + in a job's status so as to not interrupt any other output. If the --bb option to the sseett builtin command is enabled, bbaasshh reports such changes - immediately. Any trap on SSIIGGCCHHLLDD is executed for each child that + immediately. Any trap on SSIIGGCCHHLLDD is executed for each child that exits. - If an attempt to exit bbaasshh is made while jobs are stopped, the shell + If an attempt to exit bbaasshh is made while jobs are stopped, the shell prints a warning message. The jjoobbss command may then be used to inspect their status. If a second attempt to exit is made without an interven- - ing command, the shell does not print another warning, and the stopped + ing command, the shell does not print another warning, and the stopped jobs are terminated. PPRROOMMPPTTIINNGG When executing interactively, bbaasshh displays the primary prompt PPSS11 when - it is ready to read a command, and the secondary prompt PPSS22 when it - needs more input to complete a command. BBaasshh allows these prompt - strings to be customized by inserting a number of backslash-escaped + it is ready to read a command, and the secondary prompt PPSS22 when it + needs more input to complete a command. BBaasshh allows these prompt + strings to be customized by inserting a number of backslash-escaped special characters that are decoded as follows: \\aa an ASCII bell character (07) - \\dd the date in "Weekday Month Date" format (e.g., "Tue May + \\dd the date in "Weekday Month Date" format (e.g., "Tue May 26") \\DD{{_f_o_r_m_a_t}} - the _f_o_r_m_a_t is passed to _s_t_r_f_t_i_m_e(3) and the result is - inserted into the prompt string; an empty _f_o_r_m_a_t results + the _f_o_r_m_a_t is passed to _s_t_r_f_t_i_m_e(3) and the result is + inserted into the prompt string; an empty _f_o_r_m_a_t results in a locale-specific time representation. The braces are required \\ee an ASCII escape character (033) @@ -2284,7 +2291,7 @@ PPRROOMMPPTTIINNGG \\ll the basename of the shell's terminal device name \\nn newline \\rr carriage return - \\ss the name of the shell, the basename of $$00 (the portion + \\ss the name of the shell, the basename of $$00 (the portion following the final slash) \\tt the current time in 24-hour HH:MM:SS format \\TT the current time in 12-hour HH:MM:SS format @@ -2293,7 +2300,7 @@ PPRROOMMPPTTIINNGG \\uu the username of the current user \\vv the version of bbaasshh (e.g., 2.00) \\VV the release of bbaasshh, version + patchelvel (e.g., 2.00.0) - \\ww the current working directory, with $$HHOOMMEE abbreviated + \\ww the current working directory, with $$HHOOMMEE abbreviated with a tilde \\WW the basename of the current working directory, with $$HHOOMMEE abbreviated with a tilde @@ -2302,63 +2309,63 @@ PPRROOMMPPTTIINNGG \\$$ if the effective UID is 0, a ##, otherwise a $$ \\_n_n_n the character corresponding to the octal number _n_n_n \\\\ a backslash - \\[[ begin a sequence of non-printing characters, which could - be used to embed a terminal control sequence into the + \\[[ begin a sequence of non-printing characters, which could + be used to embed a terminal control sequence into the prompt \\]] end a sequence of non-printing characters - The command number and the history number are usually different: the - history number of a command is its position in the history list, which - may include commands restored from the history file (see HHIISSTTOORRYY - below), while the command number is the position in the sequence of - commands executed during the current shell session. After the string - is decoded, it is expanded via parameter expansion, command substitu- - tion, arithmetic expansion, and quote removal, subject to the value of - the pprroommppttvvaarrss shell option (see the description of the sshhoopptt command + The command number and the history number are usually different: the + history number of a command is its position in the history list, which + may include commands restored from the history file (see HHIISSTTOORRYY + below), while the command number is the position in the sequence of + commands executed during the current shell session. After the string + is decoded, it is expanded via parameter expansion, command substitu- + tion, arithmetic expansion, and quote removal, subject to the value of + the pprroommppttvvaarrss shell option (see the description of the sshhoopptt command under SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below). RREEAADDLLIINNEE - This is the library that handles reading input when using an interac- + This is the library that handles reading input when using an interac- tive shell, unless the ----nnooeeddiittiinngg option is given at shell invocation. By default, the line editing commands are similar to those of emacs. A - vi-style line editing interface is also available. To turn off line - editing after the shell is running, use the ++oo eemmaaccss or ++oo vvii options + vi-style line editing interface is also available. To turn off line + editing after the shell is running, use the ++oo eemmaaccss or ++oo vvii options to the sseett builtin (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below). RReeaaddlliinnee NNoottaattiioonn In this section, the emacs-style notation is used to denote keystrokes. - Control keys are denoted by C-_k_e_y, e.g., C-n means Control-N. Simi- - larly, _m_e_t_a keys are denoted by M-_k_e_y, so M-x means Meta-X. (On key- - boards without a _m_e_t_a key, M-_x means ESC _x, i.e., press the Escape key + Control keys are denoted by C-_k_e_y, e.g., C-n means Control-N. Simi- + larly, _m_e_t_a keys are denoted by M-_k_e_y, so M-x means Meta-X. (On key- + boards without a _m_e_t_a key, M-_x means ESC _x, i.e., press the Escape key then the _x key. This makes ESC the _m_e_t_a _p_r_e_f_i_x. The combination M-C-_x - means ESC-Control-_x, or press the Escape key then hold the Control key + means ESC-Control-_x, or press the Escape key then hold the Control key while pressing the _x key.) Readline commands may be given numeric _a_r_g_u_m_e_n_t_s, which normally act as - a repeat count. Sometimes, however, it is the sign of the argument - that is significant. Passing a negative argument to a command that - acts in the forward direction (e.g., kkiillll--lliinnee) causes that command to - act in a backward direction. Commands whose behavior with arguments + a repeat count. Sometimes, however, it is the sign of the argument + that is significant. Passing a negative argument to a command that + acts in the forward direction (e.g., kkiillll--lliinnee) causes that command to + act in a backward direction. Commands whose behavior with arguments deviates from this are noted below. - When a command is described as _k_i_l_l_i_n_g text, the text deleted is saved + When a command is described as _k_i_l_l_i_n_g text, the text deleted is saved for possible future retrieval (_y_a_n_k_i_n_g). The killed text is saved in a _k_i_l_l _r_i_n_g. Consecutive kills cause the text to be accumulated into one unit, which can be yanked all at once. Commands which do not kill text separate the chunks of text on the kill ring. RReeaaddlliinnee IInniittiiaalliizzaattiioonn - Readline is customized by putting commands in an initialization file - (the _i_n_p_u_t_r_c file). The name of this file is taken from the value of - the IINNPPUUTTRRCC variable. If that variable is unset, the default is - _~_/_._i_n_p_u_t_r_c. When a program which uses the readline library starts up, + Readline is customized by putting commands in an initialization file + (the _i_n_p_u_t_r_c file). The name of this file is taken from the value of + the IINNPPUUTTRRCC variable. If that variable is unset, the default is + _~_/_._i_n_p_u_t_r_c. When a program which uses the readline library starts up, the initialization file is read, and the key bindings and variables are - set. There are only a few basic constructs allowed in the readline - initialization file. Blank lines are ignored. Lines beginning with a - ## are comments. Lines beginning with a $$ indicate conditional con- + set. There are only a few basic constructs allowed in the readline + initialization file. Blank lines are ignored. Lines beginning with a + ## are comments. Lines beginning with a $$ indicate conditional con- structs. Other lines denote key bindings and variable settings. - The default key-bindings may be changed with an _i_n_p_u_t_r_c file. Other + The default key-bindings may be changed with an _i_n_p_u_t_r_c file. Other programs that use this library may add their own commands and bindings. For example, placing @@ -2366,19 +2373,19 @@ RREEAADDLLIINNEE M-Control-u: universal-argument or C-Meta-u: universal-argument - into the _i_n_p_u_t_r_c would make M-C-u execute the readline command _u_n_i_v_e_r_- + into the _i_n_p_u_t_r_c would make M-C-u execute the readline command _u_n_i_v_e_r_- _s_a_l_-_a_r_g_u_m_e_n_t. - The following symbolic character names are recognized: _R_U_B_O_U_T, _D_E_L, + The following symbolic character names are recognized: _R_U_B_O_U_T, _D_E_L, _E_S_C, _L_F_D, _N_E_W_L_I_N_E, _R_E_T, _R_E_T_U_R_N, _S_P_C, _S_P_A_C_E, and _T_A_B. - In addition to command names, readline allows keys to be bound to a + In addition to command names, readline allows keys to be bound to a string that is inserted when the key is pressed (a _m_a_c_r_o). RReeaaddlliinnee KKeeyy BBiinnddiinnggss - The syntax for controlling key bindings in the _i_n_p_u_t_r_c file is simple. - All that is required is the name of the command or the text of a macro - and a key sequence to which it should be bound. The name may be speci- + The syntax for controlling key bindings in the _i_n_p_u_t_r_c file is simple. + All that is required is the name of the command or the text of a macro + and a key sequence to which it should be bound. The name may be speci- fied in one of two ways: as a symbolic key name, possibly with _M_e_t_a_- or _C_o_n_t_r_o_l_- prefixes, or as a key sequence. @@ -2389,15 +2396,15 @@ RREEAADDLLIINNEE Meta-Rubout: backward-kill-word Control-o: "> output" - In the above example, _C_-_u is bound to the function uunniivveerrssaall--aarrgguummeenntt, - _M_-_D_E_L is bound to the function bbaacckkwwaarrdd--kkiillll--wwoorrdd, and _C_-_o is bound to - run the macro expressed on the right hand side (that is, to insert the + In the above example, _C_-_u is bound to the function uunniivveerrssaall--aarrgguummeenntt, + _M_-_D_E_L is bound to the function bbaacckkwwaarrdd--kkiillll--wwoorrdd, and _C_-_o is bound to + run the macro expressed on the right hand side (that is, to insert the text ``> output'' into the line). - In the second form, ""kkeeyysseeqq"":_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, kkeeyysseeqq differs - from kkeeyynnaammee above in that strings denoting an entire key sequence may - be specified by placing the sequence within double quotes. Some GNU - Emacs style key escapes can be used, as in the following example, but + In the second form, ""kkeeyysseeqq"":_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, kkeeyysseeqq differs + from kkeeyynnaammee above in that strings denoting an entire key sequence may + be specified by placing the sequence within double quotes. Some GNU + Emacs style key escapes can be used, as in the following example, but the symbolic character names are not recognized. "\C-u": universal-argument @@ -2405,7 +2412,7 @@ RREEAADDLLIINNEE "\e[11~": "Function Key 1" In this example, _C_-_u is again bound to the function uunniivveerrssaall--aarrgguummeenntt. - _C_-_x _C_-_r is bound to the function rree--rreeaadd--iinniitt--ffiillee, and _E_S_C _[ _1 _1 _~ is + _C_-_x _C_-_r is bound to the function rree--rreeaadd--iinniitt--ffiillee, and _E_S_C _[ _1 _1 _~ is bound to insert the text ``Function Key 1''. The full set of GNU Emacs style escape sequences is @@ -2416,7 +2423,7 @@ RREEAADDLLIINNEE \\"" literal " \\'' literal ' - In addition to the GNU Emacs style escape sequences, a second set of + In addition to the GNU Emacs style escape sequences, a second set of backslash escapes is available: \\aa alert (bell) \\bb backspace @@ -2426,20 +2433,20 @@ RREEAADDLLIINNEE \\rr carriage return \\tt horizontal tab \\vv vertical tab - \\_n_n_n the eight-bit character whose value is the octal value + \\_n_n_n the eight-bit character whose value is the octal value _n_n_n (one to three digits) - \\xx_H_H the eight-bit character whose value is the hexadecimal + \\xx_H_H the eight-bit character whose value is the hexadecimal value _H_H (one or two hex digits) When entering the text of a macro, single or double quotes must be used to indicate a macro definition. Unquoted text is assumed to be a func- - tion name. In the macro body, the backslash escapes described above - are expanded. Backslash will quote any other character in the macro + tion name. In the macro body, the backslash escapes described above + are expanded. Backslash will quote any other character in the macro text, including " and '. - BBaasshh allows the current readline key bindings to be displayed or modi- - fied with the bbiinndd builtin command. The editing mode may be switched - during interactive use by using the --oo option to the sseett builtin com- + BBaasshh allows the current readline key bindings to be displayed or modi- + fied with the bbiinndd builtin command. The editing mode may be switched + during interactive use by using the --oo option to the sseett builtin com- mand (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below). RReeaaddlliinnee VVaarriiaabblleess @@ -2449,37 +2456,37 @@ RREEAADDLLIINNEE sseett _v_a_r_i_a_b_l_e_-_n_a_m_e _v_a_l_u_e - Except where noted, readline variables can take the values OOnn or OOffff. + Except where noted, readline variables can take the values OOnn or OOffff. The variables and their default values are: bbeellll--ssttyyllee ((aauuddiibbllee)) - Controls what happens when readline wants to ring the terminal + Controls what happens when readline wants to ring the terminal bell. If set to nnoonnee, readline never rings the bell. If set to - vviissiibbllee, readline uses a visible bell if one is available. If + vviissiibbllee, readline uses a visible bell if one is available. If set to aauuddiibbllee, readline attempts to ring the terminal's bell. ccoommmmeenntt--bbeeggiinn ((````##'''')) - The string that is inserted when the readline iinnsseerrtt--ccoommmmeenntt + The string that is inserted when the readline iinnsseerrtt--ccoommmmeenntt command is executed. This command is bound to MM--## in emacs mode and to ## in vi command mode. ccoommpplleettiioonn--iiggnnoorree--ccaassee ((OOffff)) If set to OOnn, readline performs filename matching and completion in a case-insensitive fashion. ccoommpplleettiioonn--qquueerryy--iitteemmss ((110000)) - This determines when the user is queried about viewing the num- - ber of possible completions generated by the ppoossssiibbllee--ccoommppllee-- - ttiioonnss command. It may be set to any integer value greater than - or equal to zero. If the number of possible completions is + This determines when the user is queried about viewing the num- + ber of possible completions generated by the ppoossssiibbllee--ccoommppllee-- + ttiioonnss command. It may be set to any integer value greater than + or equal to zero. If the number of possible completions is greater than or equal to the value of this variable, the user is - asked whether or not he wishes to view them; otherwise they are + asked whether or not he wishes to view them; otherwise they are simply listed on the terminal. ccoonnvveerrtt--mmeettaa ((OOnn)) - If set to OOnn, readline will convert characters with the eighth + If set to OOnn, readline will convert characters with the eighth bit set to an ASCII key sequence by stripping the eighth bit and - prefixing an escape character (in effect, using escape as the + prefixing an escape character (in effect, using escape as the _m_e_t_a _p_r_e_f_i_x). ddiissaabbllee--ccoommpplleettiioonn ((OOffff)) If set to OOnn, readline will inhibit word completion. Completion - characters will be inserted into the line as if they had been + characters will be inserted into the line as if they had been mapped to sseellff--iinnsseerrtt. eeddiittiinngg--mmooddee ((eemmaaccss)) Controls whether readline begins with a set of key bindings sim- @@ -2487,111 +2494,111 @@ RREEAADDLLIINNEE vvii. eennaabbllee--kkeeyyppaadd ((OOffff)) When set to OOnn, readline will try to enable the application key- - pad when it is called. Some systems need this to enable the + pad when it is called. Some systems need this to enable the arrow keys. eexxppaanndd--ttiillddee ((OOffff)) - If set to oonn, tilde expansion is performed when readline + If set to oonn, tilde expansion is performed when readline attempts word completion. hhiissttoorryy--pprreesseerrvvee--ppooiinntt - If set to oonn, the history code attempts to place point at the - same location on each history line retrived with pprreevviioouuss--hhiiss-- + If set to oonn, the history code attempts to place point at the + same location on each history line retrived with pprreevviioouuss--hhiiss-- ttoorryy or nneexxtt--hhiissttoorryy. hhoorriizzoonnttaall--ssccrroollll--mmooddee ((OOffff)) - When set to OOnn, makes readline use a single line for display, + When set to OOnn, makes readline use a single line for display, scrolling the input horizontally on a single screen line when it - becomes longer than the screen width rather than wrapping to a + becomes longer than the screen width rather than wrapping to a new line. iinnppuutt--mmeettaa ((OOffff)) - If set to OOnn, readline will enable eight-bit input (that is, it - will not strip the high bit from the characters it reads), + If set to OOnn, readline will enable eight-bit input (that is, it + will not strip the high bit from the characters it reads), regardless of what the terminal claims it can support. The name mmeettaa--ffllaagg is a synonym for this variable. iisseeaarrcchh--tteerrmmiinnaattoorrss ((````CC--[[CC--JJ'''')) - The string of characters that should terminate an incremental - search without subsequently executing the character as a com- - mand. If this variable has not been given a value, the charac- + The string of characters that should terminate an incremental + search without subsequently executing the character as a com- + mand. If this variable has not been given a value, the charac- ters _E_S_C and _C_-_J will terminate an incremental search. kkeeyymmaapp ((eemmaaccss)) - Set the current readline keymap. The set of valid keymap names - is _e_m_a_c_s_, _e_m_a_c_s_-_s_t_a_n_d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_c_o_m_- - _m_a_n_d, and _v_i_-_i_n_s_e_r_t. _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; _e_m_a_c_s is - equivalent to _e_m_a_c_s_-_s_t_a_n_d_a_r_d. The default value is _e_m_a_c_s; the + Set the current readline keymap. The set of valid keymap names + is _e_m_a_c_s_, _e_m_a_c_s_-_s_t_a_n_d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_c_o_m_- + _m_a_n_d, and _v_i_-_i_n_s_e_r_t. _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; _e_m_a_c_s is + equivalent to _e_m_a_c_s_-_s_t_a_n_d_a_r_d. The default value is _e_m_a_c_s; the value of eeddiittiinngg--mmooddee also affects the default keymap. mmaarrkk--ddiirreeccttoorriieess ((OOnn)) If set to OOnn, completed directory names have a slash appended. mmaarrkk--mmooddiiffiieedd--lliinneess ((OOffff)) - If set to OOnn, history lines that have been modified are dis- + If set to OOnn, history lines that have been modified are dis- played with a preceding asterisk (**). mmaarrkk--ssyymmlliinnkkeedd--ddiirreeccttoorriieess ((OOffff)) If set to OOnn, completed names which are symbolic links to direc- - tories have a slash appended (subject to the value of + tories have a slash appended (subject to the value of mmaarrkk--ddiirreeccttoorriieess). mmaattcchh--hhiiddddeenn--ffiilleess ((OOnn)) - This variable, when set to OOnn, causes readline to match files - whose names begin with a `.' (hidden files) when performing - filename completion, unless the leading `.' is supplied by the + This variable, when set to OOnn, causes readline to match files + whose names begin with a `.' (hidden files) when performing + filename completion, unless the leading `.' is supplied by the user in the filename to be completed. oouuttppuutt--mmeettaa ((OOffff)) - If set to OOnn, readline will display characters with the eighth + If set to OOnn, readline will display characters with the eighth bit set directly rather than as a meta-prefixed escape sequence. ppaaggee--ccoommpplleettiioonnss ((OOnn)) - If set to OOnn, readline uses an internal _m_o_r_e-like pager to dis- + If set to OOnn, readline uses an internal _m_o_r_e-like pager to dis- play a screenful of possible completions at a time. pprriinntt--ccoommpplleettiioonnss--hhoorriizzoonnttaallllyy ((OOffff)) - If set to OOnn, readline will display completions with matches - sorted horizontally in alphabetical order, rather than down the + If set to OOnn, readline will display completions with matches + sorted horizontally in alphabetical order, rather than down the screen. sshhooww--aallll--iiff--aammbbiigguuoouuss ((OOffff)) - This alters the default behavior of the completion functions. + This alters the default behavior of the completion functions. If set to oonn, words which have more than one possible completion - cause the matches to be listed immediately instead of ringing + cause the matches to be listed immediately instead of ringing the bell. sshhooww--aallll--iiff--uunnmmooddiiffiieedd ((OOffff)) - This alters the default behavior of the completion functions in + This alters the default behavior of the completion functions in a fashion similar to sshhooww--aallll--iiff--aammbbiigguuoouuss. If set to oonn, words - which have more than one possible completion without any possi- - ble partial completion (the possible completions don't share a - common prefix) cause the matches to be listed immediately + which have more than one possible completion without any possi- + ble partial completion (the possible completions don't share a + common prefix) cause the matches to be listed immediately instead of ringing the bell. vviissiibbllee--ssttaattss ((OOffff)) - If set to OOnn, a character denoting a file's type as reported by - _s_t_a_t(2) is appended to the filename when listing possible com- + If set to OOnn, a character denoting a file's type as reported by + _s_t_a_t(2) is appended to the filename when listing possible com- pletions. RReeaaddlliinnee CCoonnddiittiioonnaall CCoonnssttrruuccttss - Readline implements a facility similar in spirit to the conditional - compilation features of the C preprocessor which allows key bindings - and variable settings to be performed as the result of tests. There + Readline implements a facility similar in spirit to the conditional + compilation features of the C preprocessor which allows key bindings + and variable settings to be performed as the result of tests. There are four parser directives used. - $$iiff The $$iiff construct allows bindings to be made based on the edit- - ing mode, the terminal being used, or the application using - readline. The text of the test extends to the end of the line; + $$iiff The $$iiff construct allows bindings to be made based on the edit- + ing mode, the terminal being used, or the application using + readline. The text of the test extends to the end of the line; no characters are required to isolate it. - mmooddee The mmooddee== form of the $$iiff directive is used to test - whether readline is in emacs or vi mode. This may be - used in conjunction with the sseett kkeeyymmaapp command, for - instance, to set bindings in the _e_m_a_c_s_-_s_t_a_n_d_a_r_d and - _e_m_a_c_s_-_c_t_l_x keymaps only if readline is starting out in + mmooddee The mmooddee== form of the $$iiff directive is used to test + whether readline is in emacs or vi mode. This may be + used in conjunction with the sseett kkeeyymmaapp command, for + instance, to set bindings in the _e_m_a_c_s_-_s_t_a_n_d_a_r_d and + _e_m_a_c_s_-_c_t_l_x keymaps only if readline is starting out in emacs mode. - tteerrmm The tteerrmm== form may be used to include terminal-specific + tteerrmm The tteerrmm== form may be used to include terminal-specific key bindings, perhaps to bind the key sequences output by the terminal's function keys. The word on the right side of the == is tested against the both full name of the ter- - minal and the portion of the terminal name before the - first --. This allows _s_u_n to match both _s_u_n and _s_u_n_-_c_m_d, + minal and the portion of the terminal name before the + first --. This allows _s_u_n to match both _s_u_n and _s_u_n_-_c_m_d, for instance. aapppplliiccaattiioonn The aapppplliiccaattiioonn construct is used to include application- specific settings. Each program using the readline - library sets the _a_p_p_l_i_c_a_t_i_o_n _n_a_m_e, and an initialization + library sets the _a_p_p_l_i_c_a_t_i_o_n _n_a_m_e, and an initialization file can test for a particular value. This could be used - to bind key sequences to functions useful for a specific - program. For instance, the following command adds a key - sequence that quotes the current or previous word in + to bind key sequences to functions useful for a specific + program. For instance, the following command adds a key + sequence that quotes the current or previous word in Bash: $$iiff Bash @@ -2606,51 +2613,51 @@ RREEAADDLLIINNEE test fails. $$iinncclluuddee - This directive takes a single filename as an argument and reads - commands and bindings from that file. For example, the follow- + This directive takes a single filename as an argument and reads + commands and bindings from that file. For example, the follow- ing directive would read _/_e_t_c_/_i_n_p_u_t_r_c: $$iinncclluuddee _/_e_t_c_/_i_n_p_u_t_r_c SSeeaarrcchhiinngg - Readline provides commands for searching through the command history + Readline provides commands for searching through the command history (see HHIISSTTOORRYY below) for lines containing a specified string. There are two search modes: _i_n_c_r_e_m_e_n_t_a_l and _n_o_n_-_i_n_c_r_e_m_e_n_t_a_l. - Incremental searches begin before the user has finished typing the - search string. As each character of the search string is typed, read- + Incremental searches begin before the user has finished typing the + search string. As each character of the search string is typed, read- line displays the next entry from the history matching the string typed - so far. An incremental search requires only as many characters as - needed to find the desired history entry. The characters present in - the value of the iisseeaarrcchh--tteerrmmiinnaattoorrss variable are used to terminate an + so far. An incremental search requires only as many characters as + needed to find the desired history entry. The characters present in + the value of the iisseeaarrcchh--tteerrmmiinnaattoorrss variable are used to terminate an incremental search. If that variable has not been assigned a value the - Escape and Control-J characters will terminate an incremental search. - Control-G will abort an incremental search and restore the original - line. When the search is terminated, the history entry containing the + Escape and Control-J characters will terminate an incremental search. + Control-G will abort an incremental search and restore the original + line. When the search is terminated, the history entry containing the search string becomes the current line. - To find other matching entries in the history list, type Control-S or - Control-R as appropriate. This will search backward or forward in the - history for the next entry matching the search string typed so far. - Any other key sequence bound to a readline command will terminate the - search and execute that command. For instance, a _n_e_w_l_i_n_e will termi- + To find other matching entries in the history list, type Control-S or + Control-R as appropriate. This will search backward or forward in the + history for the next entry matching the search string typed so far. + Any other key sequence bound to a readline command will terminate the + search and execute that command. For instance, a _n_e_w_l_i_n_e will termi- nate the search and accept the line, thereby executing the command from the history list. Readline remembers the last incremental search string. If two Control- - Rs are typed without any intervening characters defining a new search + Rs are typed without any intervening characters defining a new search string, any remembered search string is used. - Non-incremental searches read the entire search string before starting - to search for matching history lines. The search string may be typed + Non-incremental searches read the entire search string before starting + to search for matching history lines. The search string may be typed by the user or be part of the contents of the current line. RReeaaddlliinnee CCoommmmaanndd NNaammeess - The following is a list of the names of the commands and the default + The following is a list of the names of the commands and the default key sequences to which they are bound. Command names without an accom- panying key sequence are unbound by default. In the following descrip- - tions, _p_o_i_n_t refers to the current cursor position, and _m_a_r_k refers to - a cursor position saved by the sseett--mmaarrkk command. The text between the + tions, _p_o_i_n_t refers to the current cursor position, and _m_a_r_k refers to + a cursor position saved by the sseett--mmaarrkk command. The text between the point and mark is referred to as the _r_e_g_i_o_n. CCoommmmaannddss ffoorr MMoovviinngg @@ -2666,11 +2673,11 @@ RREEAADDLLIINNEE Move forward to the end of the next word. Words are composed of alphanumeric characters (letters and digits). bbaacckkwwaarrdd--wwoorrdd ((MM--bb)) - Move back to the start of the current or previous word. Words + Move back to the start of the current or previous word. Words are composed of alphanumeric characters (letters and digits). cclleeaarr--ssccrreeeenn ((CC--ll)) - Clear the screen leaving the current line at the top of the - screen. With an argument, refresh the current line without + Clear the screen leaving the current line at the top of the + screen. With an argument, refresh the current line without clearing the screen. rreeddrraaww--ccuurrrreenntt--lliinnee Refresh the current line. @@ -2678,128 +2685,128 @@ RREEAADDLLIINNEE CCoommmmaannddss ffoorr MMaanniippuullaattiinngg tthhee HHiissttoorryy aacccceepptt--lliinnee ((NNeewwlliinnee,, RReettuurrnn)) Accept the line regardless of where the cursor is. If this line - is non-empty, add it to the history list according to the state - of the HHIISSTTCCOONNTTRROOLL variable. If the line is a modified history + is non-empty, add it to the history list according to the state + of the HHIISSTTCCOONNTTRROOLL variable. If the line is a modified history line, then restore the history line to its original state. pprreevviioouuss--hhiissttoorryy ((CC--pp)) Fetch the previous command from the history list, moving back in the list. nneexxtt--hhiissttoorryy ((CC--nn)) - Fetch the next command from the history list, moving forward in + Fetch the next command from the history list, moving forward in the list. bbeeggiinnnniinngg--ooff--hhiissttoorryy ((MM--<<)) Move to the first line in the history. eenndd--ooff--hhiissttoorryy ((MM-->>)) - Move to the end of the input history, i.e., the line currently + Move to the end of the input history, i.e., the line currently being entered. rreevveerrssee--sseeaarrcchh--hhiissttoorryy ((CC--rr)) - Search backward starting at the current line and moving `up' - through the history as necessary. This is an incremental + Search backward starting at the current line and moving `up' + through the history as necessary. This is an incremental search. ffoorrwwaarrdd--sseeaarrcchh--hhiissttoorryy ((CC--ss)) - Search forward starting at the current line and moving `down' - through the history as necessary. This is an incremental + Search forward starting at the current line and moving `down' + through the history as necessary. This is an incremental search. nnoonn--iinnccrreemmeennttaall--rreevveerrssee--sseeaarrcchh--hhiissttoorryy ((MM--pp)) Search backward through the history starting at the current line - using a non-incremental search for a string supplied by the + using a non-incremental search for a string supplied by the user. nnoonn--iinnccrreemmeennttaall--ffoorrwwaarrdd--sseeaarrcchh--hhiissttoorryy ((MM--nn)) - Search forward through the history using a non-incremental + Search forward through the history using a non-incremental search for a string supplied by the user. hhiissttoorryy--sseeaarrcchh--ffoorrwwaarrdd - Search forward through the history for the string of characters - between the start of the current line and the point. This is a + Search forward through the history for the string of characters + between the start of the current line and the point. This is a non-incremental search. hhiissttoorryy--sseeaarrcchh--bbaacckkwwaarrdd Search backward through the history for the string of characters - between the start of the current line and the point. This is a + between the start of the current line and the point. This is a non-incremental search. yyaannkk--nntthh--aarrgg ((MM--CC--yy)) - Insert the first argument to the previous command (usually the + Insert the first argument to the previous command (usually the second word on the previous line) at point. With an argument _n, - insert the _nth word from the previous command (the words in the - previous command begin with word 0). A negative argument + insert the _nth word from the previous command (the words in the + previous command begin with word 0). A negative argument inserts the _nth word from the end of the previous command. yyaannkk--llaasstt--aarrgg ((MM--..,, MM--__)) - Insert the last argument to the previous command (the last word - of the previous history entry). With an argument, behave - exactly like yyaannkk--nntthh--aarrgg. Successive calls to yyaannkk--llaasstt--aarrgg - move back through the history list, inserting the last argument + Insert the last argument to the previous command (the last word + of the previous history entry). With an argument, behave + exactly like yyaannkk--nntthh--aarrgg. Successive calls to yyaannkk--llaasstt--aarrgg + move back through the history list, inserting the last argument of each line in turn. sshheellll--eexxppaanndd--lliinnee ((MM--CC--ee)) Expand the line as the shell does. This performs alias and his- tory expansion as well as all of the shell word expansions. See - HHIISSTTOORRYY EEXXPPAANNSSIIOONN below for a description of history expansion. + HHIISSTTOORRYY EEXXPPAANNSSIIOONN below for a description of history expansion. hhiissttoorryy--eexxppaanndd--lliinnee ((MM--^^)) - Perform history expansion on the current line. See HHIISSTTOORRYY + Perform history expansion on the current line. See HHIISSTTOORRYY EEXXPPAANNSSIIOONN below for a description of history expansion. mmaaggiicc--ssppaaccee - Perform history expansion on the current line and insert a + Perform history expansion on the current line and insert a space. See HHIISSTTOORRYY EEXXPPAANNSSIIOONN below for a description of history expansion. aalliiaass--eexxppaanndd--lliinnee - Perform alias expansion on the current line. See AALLIIAASSEESS above + Perform alias expansion on the current line. See AALLIIAASSEESS above for a description of alias expansion. hhiissttoorryy--aanndd--aalliiaass--eexxppaanndd--lliinnee Perform history and alias expansion on the current line. iinnsseerrtt--llaasstt--aarrgguummeenntt ((MM--..,, MM--__)) A synonym for yyaannkk--llaasstt--aarrgg. ooppeerraattee--aanndd--ggeett--nneexxtt ((CC--oo)) - Accept the current line for execution and fetch the next line - relative to the current line from the history for editing. Any + Accept the current line for execution and fetch the next line + relative to the current line from the history for editing. Any argument is ignored. eeddiitt--aanndd--eexxeeccuuttee--ccoommmmaanndd ((CC--xxCC--ee)) - Invoke an editor on the current command line, and execute the - result as shell commands. BBaasshh attempts to invoke $$FFCCEEDDIITT, + Invoke an editor on the current command line, and execute the + result as shell commands. BBaasshh attempts to invoke $$FFCCEEDDIITT, $$EEDDIITTOORR, and _e_m_a_c_s as the editor, in that order. CCoommmmaannddss ffoorr CChhaannggiinngg TTeexxtt ddeelleettee--cchhaarr ((CC--dd)) - Delete the character at point. If point is at the beginning of - the line, there are no characters in the line, and the last + Delete the character at point. If point is at the beginning of + the line, there are no characters in the line, and the last character typed was not bound to ddeelleettee--cchhaarr, then return EEOOFF. bbaacckkwwaarrdd--ddeelleettee--cchhaarr ((RRuubboouutt)) - Delete the character behind the cursor. When given a numeric + Delete the character behind the cursor. When given a numeric argument, save the deleted text on the kill ring. ffoorrwwaarrdd--bbaacckkwwaarrdd--ddeelleettee--cchhaarr - Delete the character under the cursor, unless the cursor is at + Delete the character under the cursor, unless the cursor is at the end of the line, in which case the character behind the cur- sor is deleted. qquuootteedd--iinnsseerrtt ((CC--qq,, CC--vv)) - Add the next character typed to the line verbatim. This is how + Add the next character typed to the line verbatim. This is how to insert characters like CC--qq, for example. ttaabb--iinnsseerrtt ((CC--vv TTAABB)) Insert a tab character. sseellff--iinnsseerrtt ((aa,, bb,, AA,, 11,, !!,, ......)) Insert the character typed. ttrraannssppoossee--cchhaarrss ((CC--tt)) - Drag the character before point forward over the character at - point, moving point forward as well. If point is at the end of - the line, then this transposes the two characters before point. + Drag the character before point forward over the character at + point, moving point forward as well. If point is at the end of + the line, then this transposes the two characters before point. Negative arguments have no effect. ttrraannssppoossee--wwoorrddss ((MM--tt)) - Drag the word before point past the word after point, moving - point over that word as well. If point is at the end of the + Drag the word before point past the word after point, moving + point over that word as well. If point is at the end of the line, this transposes the last two words on the line. uuppccaassee--wwoorrdd ((MM--uu)) - Uppercase the current (or following) word. With a negative + Uppercase the current (or following) word. With a negative argument, uppercase the previous word, but do not move point. ddoowwnnccaassee--wwoorrdd ((MM--ll)) - Lowercase the current (or following) word. With a negative + Lowercase the current (or following) word. With a negative argument, lowercase the previous word, but do not move point. ccaappiittaalliizzee--wwoorrdd ((MM--cc)) - Capitalize the current (or following) word. With a negative + Capitalize the current (or following) word. With a negative argument, capitalize the previous word, but do not move point. oovveerrwwrriittee--mmooddee - Toggle overwrite mode. With an explicit positive numeric argu- + Toggle overwrite mode. With an explicit positive numeric argu- ment, switches to overwrite mode. With an explicit non-positive numeric argument, switches to insert mode. This command affects - only eemmaaccss mode; vvii mode does overwrite differently. Each call + only eemmaaccss mode; vvii mode does overwrite differently. Each call to _r_e_a_d_l_i_n_e_(_) starts in insert mode. In overwrite mode, charac- - ters bound to sseellff--iinnsseerrtt replace the text at point rather than - pushing the text to the right. Characters bound to bbaacckk-- - wwaarrdd--ddeelleettee--cchhaarr replace the character before point with a + ters bound to sseellff--iinnsseerrtt replace the text at point rather than + pushing the text to the right. Characters bound to bbaacckk-- + wwaarrdd--ddeelleettee--cchhaarr replace the character before point with a space. By default, this command is unbound. KKiilllliinngg aanndd YYaannkkiinngg @@ -2808,24 +2815,24 @@ RREEAADDLLIINNEE bbaacckkwwaarrdd--kkiillll--lliinnee ((CC--xx RRuubboouutt)) Kill backward to the beginning of the line. uunniixx--lliinnee--ddiissccaarrdd ((CC--uu)) - Kill backward from point to the beginning of the line. The + Kill backward from point to the beginning of the line. The killed text is saved on the kill-ring. kkiillll--wwhhoollee--lliinnee - Kill all characters on the current line, no matter where point + Kill all characters on the current line, no matter where point is. kkiillll--wwoorrdd ((MM--dd)) - Kill from point to the end of the current word, or if between - words, to the end of the next word. Word boundaries are the + Kill from point to the end of the current word, or if between + words, to the end of the next word. Word boundaries are the same as those used by ffoorrwwaarrdd--wwoorrdd. bbaacckkwwaarrdd--kkiillll--wwoorrdd ((MM--RRuubboouutt)) - Kill the word behind point. Word boundaries are the same as + Kill the word behind point. Word boundaries are the same as those used by bbaacckkwwaarrdd--wwoorrdd. uunniixx--wwoorrdd--rruubboouutt ((CC--ww)) - Kill the word behind point, using white space as a word bound- + Kill the word behind point, using white space as a word bound- ary. The killed text is saved on the kill-ring. uunniixx--ffiilleennaammee--rruubboouutt - Kill the word behind point, using white space and the slash - character as the word boundaries. The killed text is saved on + Kill the word behind point, using white space and the slash + character as the word boundaries. The killed text is saved on the kill-ring. ddeelleettee--hhoorriizzoonnttaall--ssppaaccee ((MM--\\)) Delete all spaces and tabs around point. @@ -2834,61 +2841,61 @@ RREEAADDLLIINNEE ccooppyy--rreeggiioonn--aass--kkiillll Copy the text in the region to the kill buffer. ccooppyy--bbaacckkwwaarrdd--wwoorrdd - Copy the word before point to the kill buffer. The word bound- + Copy the word before point to the kill buffer. The word bound- aries are the same as bbaacckkwwaarrdd--wwoorrdd. ccooppyy--ffoorrwwaarrdd--wwoorrdd - Copy the word following point to the kill buffer. The word + Copy the word following point to the kill buffer. The word boundaries are the same as ffoorrwwaarrdd--wwoorrdd. yyaannkk ((CC--yy)) Yank the top of the kill ring into the buffer at point. yyaannkk--ppoopp ((MM--yy)) - Rotate the kill ring, and yank the new top. Only works follow- + Rotate the kill ring, and yank the new top. Only works follow- ing yyaannkk or yyaannkk--ppoopp. NNuummeerriicc AArrgguummeennttss ddiiggiitt--aarrgguummeenntt ((MM--00,, MM--11,, ......,, MM----)) - Add this digit to the argument already accumulating, or start a + Add this digit to the argument already accumulating, or start a new argument. M-- starts a negative argument. uunniivveerrssaall--aarrgguummeenntt - This is another way to specify an argument. If this command is - followed by one or more digits, optionally with a leading minus - sign, those digits define the argument. If the command is fol- - lowed by digits, executing uunniivveerrssaall--aarrgguummeenntt again ends the - numeric argument, but is otherwise ignored. As a special case, - if this command is immediately followed by a character that is - neither a digit or minus sign, the argument count for the next - command is multiplied by four. The argument count is initially - one, so executing this function the first time makes the argu- - ment count four, a second time makes the argument count sixteen, - and so on. + This is another way to specify an argument. If this command is + followed by one or more digits, optionally with a leading minus + sign, those digits define the argument. If the command is fol- + lowed by digits, executing uunniivveerrssaall--aarrgguummeenntt again ends the + numeric argument, but is otherwise ignored. As a special case, + if this command is immediately followed by a character that is + neither a digit or minus sign, the argument count for the next + command is multiplied by four. The argument count is initially + one, so executing this function the first time makes the + argument count four, a second time makes the argument count six- + teen, and so on. CCoommpplleettiinngg ccoommpplleettee ((TTAABB)) - Attempt to perform completion on the text before point. BBaasshh + Attempt to perform completion on the text before point. BBaasshh attempts completion treating the text as a variable (if the text - begins with $$), username (if the text begins with ~~), hostname - (if the text begins with @@), or command (including aliases and + begins with $$), username (if the text begins with ~~), hostname + (if the text begins with @@), or command (including aliases and functions) in turn. If none of these produces a match, filename completion is attempted. ppoossssiibbllee--ccoommpplleettiioonnss ((MM--??)) List the possible completions of the text before point. iinnsseerrtt--ccoommpplleettiioonnss ((MM--**)) - Insert all completions of the text before point that would have + Insert all completions of the text before point that would have been generated by ppoossssiibbllee--ccoommpplleettiioonnss. mmeennuu--ccoommpplleettee - Similar to ccoommpplleettee, but replaces the word to be completed with - a single match from the list of possible completions. Repeated - execution of mmeennuu--ccoommpplleettee steps through the list of possible - completions, inserting each match in turn. At the end of the + Similar to ccoommpplleettee, but replaces the word to be completed with + a single match from the list of possible completions. Repeated + execution of mmeennuu--ccoommpplleettee steps through the list of possible + completions, inserting each match in turn. At the end of the list of completions, the bell is rung (subject to the setting of bbeellll--ssttyyllee) and the original text is restored. An argument of _n - moves _n positions forward in the list of matches; a negative - argument may be used to move backward through the list. This - command is intended to be bound to TTAABB, but is unbound by + moves _n positions forward in the list of matches; a negative + argument may be used to move backward through the list. This + command is intended to be bound to TTAABB, but is unbound by default. ddeelleettee--cchhaarr--oorr--lliisstt - Deletes the character under the cursor if not at the beginning - or end of the line (like ddeelleettee--cchhaarr). If at the end of the + Deletes the character under the cursor if not at the beginning + or end of the line (like ddeelleettee--cchhaarr). If at the end of the line, behaves identically to ppoossssiibbllee--ccoommpplleettiioonnss. This command is unbound by default. ccoommpplleettee--ffiilleennaammee ((MM--//)) @@ -2897,197 +2904,197 @@ RREEAADDLLIINNEE List the possible completions of the text before point, treating it as a filename. ccoommpplleettee--uusseerrnnaammee ((MM--~~)) - Attempt completion on the text before point, treating it as a + Attempt completion on the text before point, treating it as a username. ppoossssiibbllee--uusseerrnnaammee--ccoommpplleettiioonnss ((CC--xx ~~)) List the possible completions of the text before point, treating it as a username. ccoommpplleettee--vvaarriiaabbllee ((MM--$$)) - Attempt completion on the text before point, treating it as a + Attempt completion on the text before point, treating it as a shell variable. ppoossssiibbllee--vvaarriiaabbllee--ccoommpplleettiioonnss ((CC--xx $$)) List the possible completions of the text before point, treating it as a shell variable. ccoommpplleettee--hhoossttnnaammee ((MM--@@)) - Attempt completion on the text before point, treating it as a + Attempt completion on the text before point, treating it as a hostname. ppoossssiibbllee--hhoossttnnaammee--ccoommpplleettiioonnss ((CC--xx @@)) List the possible completions of the text before point, treating it as a hostname. ccoommpplleettee--ccoommmmaanndd ((MM--!!)) - Attempt completion on the text before point, treating it as a - command name. Command completion attempts to match the text - against aliases, reserved words, shell functions, shell + Attempt completion on the text before point, treating it as a + command name. Command completion attempts to match the text + against aliases, reserved words, shell functions, shell builtins, and finally executable filenames, in that order. ppoossssiibbllee--ccoommmmaanndd--ccoommpplleettiioonnss ((CC--xx !!)) List the possible completions of the text before point, treating it as a command name. ddyynnaammiicc--ccoommpplleettee--hhiissttoorryy ((MM--TTAABB)) - Attempt completion on the text before point, comparing the text - against lines from the history list for possible completion + Attempt completion on the text before point, comparing the text + against lines from the history list for possible completion matches. ccoommpplleettee--iinnttoo--bbrraacceess ((MM--{{)) Perform filename completion and insert the list of possible com- - pletions enclosed within braces so the list is available to the + pletions enclosed within braces so the list is available to the shell (see BBrraaccee EExxppaannssiioonn above). KKeeyybbooaarrdd MMaaccrrooss ssttaarrtt--kkbbdd--mmaaccrroo ((CC--xx (()) - Begin saving the characters typed into the current keyboard + Begin saving the characters typed into the current keyboard macro. eenndd--kkbbdd--mmaaccrroo ((CC--xx )))) Stop saving the characters typed into the current keyboard macro and store the definition. ccaallll--llaasstt--kkbbdd--mmaaccrroo ((CC--xx ee)) - Re-execute the last keyboard macro defined, by making the char- + Re-execute the last keyboard macro defined, by making the char- acters in the macro appear as if typed at the keyboard. MMiisscceellllaanneeoouuss rree--rreeaadd--iinniitt--ffiillee ((CC--xx CC--rr)) - Read in the contents of the _i_n_p_u_t_r_c file, and incorporate any + Read in the contents of the _i_n_p_u_t_r_c file, and incorporate any bindings or variable assignments found there. aabboorrtt ((CC--gg)) - Abort the current editing command and ring the terminal's bell + Abort the current editing command and ring the terminal's bell (subject to the setting of bbeellll--ssttyyllee). ddoo--uuppppeerrccaassee--vveerrssiioonn ((MM--aa,, MM--bb,, MM--_x,, ......)) - If the metafied character _x is lowercase, run the command that + If the metafied character _x is lowercase, run the command that is bound to the corresponding uppercase character. pprreeffiixx--mmeettaa ((EESSCC)) Metafy the next character typed. EESSCC ff is equivalent to MMeettaa--ff. uunnddoo ((CC--__,, CC--xx CC--uu)) Incremental undo, separately remembered for each line. rreevveerrtt--lliinnee ((MM--rr)) - Undo all changes made to this line. This is like executing the - uunnddoo command enough times to return the line to its initial + Undo all changes made to this line. This is like executing the + uunnddoo command enough times to return the line to its initial state. ttiillddee--eexxppaanndd ((MM--&&)) Perform tilde expansion on the current word. sseett--mmaarrkk ((CC--@@,, MM--<>)) - Set the mark to the point. If a numeric argument is supplied, + Set the mark to the point. If a numeric argument is supplied, the mark is set to that position. eexxcchhaannggee--ppooiinntt--aanndd--mmaarrkk ((CC--xx CC--xx)) - Swap the point with the mark. The current cursor position is - set to the saved position, and the old cursor position is saved + Swap the point with the mark. The current cursor position is + set to the saved position, and the old cursor position is saved as the mark. cchhaarraacctteerr--sseeaarrcchh ((CC--]])) A character is read and point is moved to the next occurrence of - that character. A negative count searches for previous occur- + that character. A negative count searches for previous occur- rences. cchhaarraacctteerr--sseeaarrcchh--bbaacckkwwaarrdd ((MM--CC--]])) - A character is read and point is moved to the previous occur- - rence of that character. A negative count searches for subse- + A character is read and point is moved to the previous occur- + rence of that character. A negative count searches for subse- quent occurrences. iinnsseerrtt--ccoommmmeenntt ((MM--##)) - Without a numeric argument, the value of the readline ccoomm-- - mmeenntt--bbeeggiinn variable is inserted at the beginning of the current + Without a numeric argument, the value of the readline ccoomm-- + mmeenntt--bbeeggiinn variable is inserted at the beginning of the current line. If a numeric argument is supplied, this command acts as a - toggle: if the characters at the beginning of the line do not - match the value of ccoommmmeenntt--bbeeggiinn, the value is inserted, other- + toggle: if the characters at the beginning of the line do not + match the value of ccoommmmeenntt--bbeeggiinn, the value is inserted, other- wise the characters in ccoommmmeenntt--bbeeggiinn are deleted from the begin- - ning of the line. In either case, the line is accepted as if a - newline had been typed. The default value of ccoommmmeenntt--bbeeggiinn - causes this command to make the current line a shell comment. - If a numeric argument causes the comment character to be + ning of the line. In either case, the line is accepted as if a + newline had been typed. The default value of ccoommmmeenntt--bbeeggiinn + causes this command to make the current line a shell comment. + If a numeric argument causes the comment character to be removed, the line will be executed by the shell. gglloobb--ccoommpplleettee--wwoorrdd ((MM--gg)) - The word before point is treated as a pattern for pathname - expansion, with an asterisk implicitly appended. This pattern - is used to generate a list of matching file names for possible + The word before point is treated as a pattern for pathname + expansion, with an asterisk implicitly appended. This pattern + is used to generate a list of matching file names for possible completions. gglloobb--eexxppaanndd--wwoorrdd ((CC--xx **)) - The word before point is treated as a pattern for pathname - expansion, and the list of matching file names is inserted, - replacing the word. If a numeric argument is supplied, an + The word before point is treated as a pattern for pathname + expansion, and the list of matching file names is inserted, + replacing the word. If a numeric argument is supplied, an asterisk is appended before pathname expansion. gglloobb--lliisstt--eexxppaannssiioonnss ((CC--xx gg)) - The list of expansions that would have been generated by - gglloobb--eexxppaanndd--wwoorrdd is displayed, and the line is redrawn. If a - numeric argument is supplied, an asterisk is appended before + The list of expansions that would have been generated by + gglloobb--eexxppaanndd--wwoorrdd is displayed, and the line is redrawn. If a + numeric argument is supplied, an asterisk is appended before pathname expansion. dduummpp--ffuunnccttiioonnss - Print all of the functions and their key bindings to the read- + Print all of the functions and their key bindings to the read- line output stream. If a numeric argument is supplied, the out- - put is formatted in such a way that it can be made part of an + put is formatted in such a way that it can be made part of an _i_n_p_u_t_r_c file. dduummpp--vvaarriiaabblleess Print all of the settable readline variables and their values to - the readline output stream. If a numeric argument is supplied, - the output is formatted in such a way that it can be made part + the readline output stream. If a numeric argument is supplied, + the output is formatted in such a way that it can be made part of an _i_n_p_u_t_r_c file. dduummpp--mmaaccrrooss - Print all of the readline key sequences bound to macros and the - strings they ouput. If a numeric argument is supplied, the out- - put is formatted in such a way that it can be made part of an + Print all of the readline key sequences bound to macros and the + strings they ouput. If a numeric argument is supplied, the + output is formatted in such a way that it can be made part of an _i_n_p_u_t_r_c file. ddiissppllaayy--sshheellll--vveerrssiioonn ((CC--xx CC--vv)) - Display version information about the current instance of bbaasshh. + Display version information about the current instance of bbaasshh. PPrrooggrraammmmaabbllee CCoommpplleettiioonn - When word completion is attempted for an argument to a command for - which a completion specification (a _c_o_m_p_s_p_e_c) has been defined using - the ccoommpplleettee builtin (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below), the pro- + When word completion is attempted for an argument to a command for + which a completion specification (a _c_o_m_p_s_p_e_c) has been defined using + the ccoommpplleettee builtin (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below), the pro- grammable completion facilities are invoked. - First, the command name is identified. If a compspec has been defined + First, the command name is identified. If a compspec has been defined for that command, the compspec is used to generate the list of possible - completions for the word. If the command word is a full pathname, a - compspec for the full pathname is searched for first. If no compspec - is found for the full pathname, an attempt is made to find a compspec + completions for the word. If the command word is a full pathname, a + compspec for the full pathname is searched for first. If no compspec + is found for the full pathname, an attempt is made to find a compspec for the portion following the final slash. - Once a compspec has been found, it is used to generate the list of - matching words. If a compspec is not found, the default bbaasshh comple- + Once a compspec has been found, it is used to generate the list of + matching words. If a compspec is not found, the default bbaasshh comple- tion as described above under CCoommpplleettiinngg is performed. - First, the actions specified by the compspec are used. Only matches - which are prefixed by the word being completed are returned. When the - --ff or --dd option is used for filename or directory name completion, the + First, the actions specified by the compspec are used. Only matches + which are prefixed by the word being completed are returned. When the + --ff or --dd option is used for filename or directory name completion, the shell variable FFIIGGNNOORREE is used to filter the matches. - Any completions specified by a filename expansion pattern to the --GG + Any completions specified by a filename expansion pattern to the --GG option are generated next. The words generated by the pattern need not - match the word being completed. The GGLLOOBBIIGGNNOORREE shell variable is not + match the word being completed. The GGLLOOBBIIGGNNOORREE shell variable is not used to filter the matches, but the FFIIGGNNOORREE variable is used. - Next, the string specified as the argument to the --WW option is consid- - ered. The string is first split using the characters in the IIFFSS spe- - cial variable as delimiters. Shell quoting is honored. Each word is - then expanded using brace expansion, tilde expansion, parameter and - variable expansion, command substitution, arithmetic expansion, and - pathname expansion, as described above under EEXXPPAANNSSIIOONN. The results - are split using the rules described above under WWoorrdd SSpplliittttiinngg. The + Next, the string specified as the argument to the --WW option is consid- + ered. The string is first split using the characters in the IIFFSS spe- + cial variable as delimiters. Shell quoting is honored. Each word is + then expanded using brace expansion, tilde expansion, parameter and + variable expansion, command substitution, arithmetic expansion, and + pathname expansion, as described above under EEXXPPAANNSSIIOONN. The results + are split using the rules described above under WWoorrdd SSpplliittttiinngg. The results of the expansion are prefix-matched against the word being com- pleted, and the matching words become the possible completions. - After these matches have been generated, any shell function or command - specified with the --FF and --CC options is invoked. When the command or + After these matches have been generated, any shell function or command + specified with the --FF and --CC options is invoked. When the command or function is invoked, the CCOOMMPP__LLIINNEE and CCOOMMPP__PPOOIINNTT variables are - assigned values as described above under SShheellll VVaarriiaabblleess. If a shell - function is being invoked, the CCOOMMPP__WWOORRDDSS and CCOOMMPP__CCWWOORRDD variables are - also set. When the function or command is invoked, the first argument - is the name of the command whose arguments are being completed, the - second argument is the word being completed, and the third argument is - the word preceding the word being completed on the current command + assigned values as described above under SShheellll VVaarriiaabblleess. If a shell + function is being invoked, the CCOOMMPP__WWOORRDDSS and CCOOMMPP__CCWWOORRDD variables are + also set. When the function or command is invoked, the first argument + is the name of the command whose arguments are being completed, the + second argument is the word being completed, and the third argument is + the word preceding the word being completed on the current command line. No filtering of the generated completions against the word being completed is performed; the function or command has complete freedom in generating the matches. - Any function specified with --FF is invoked first. The function may use - any of the shell facilities, including the ccoommppggeenn builtin described - below, to generate the matches. It must put the possible completions + Any function specified with --FF is invoked first. The function may use + any of the shell facilities, including the ccoommppggeenn builtin described + below, to generate the matches. It must put the possible completions in the CCOOMMPPRREEPPLLYY array variable. - Next, any command specified with the --CC option is invoked in an envi- - ronment equivalent to command substitution. It should print a list of - completions, one per line, to the standard output. Backslash may be + Next, any command specified with the --CC option is invoked in an envi- + ronment equivalent to command substitution. It should print a list of + completions, one per line, to the standard output. Backslash may be used to escape a newline, if necessary. - After all of the possible completions are generated, any filter speci- - fied with the --XX option is applied to the list. The filter is a pat- - tern as used for pathname expansion; a && in the pattern is replaced - with the text of the word being completed. A literal && may be escaped - with a backslash; the backslash is removed before attempting a match. - Any completion that matches the pattern will be removed from the list. + After all of the possible completions are generated, any filter speci- + fied with the --XX option is applied to the list. The filter is a pat- + tern as used for pathname expansion; a && in the pattern is replaced + with the text of the word being completed. A literal && may be escaped + with a backslash; the backslash is removed before attempting a match. + Any completion that matches the pattern will be removed from the list. A leading !! negates the pattern; in this case any completion not match- ing the pattern will be removed. @@ -3095,127 +3102,127 @@ RREEAADDLLIINNEE added to each member of the completion list, and the result is returned to the readline completion code as the list of possible completions. - If the previously-applied actions do not generate any matches, and the - --oo ddiirrnnaammeess option was supplied to ccoommpplleettee when the compspec was + If the previously-applied actions do not generate any matches, and the + --oo ddiirrnnaammeess option was supplied to ccoommpplleettee when the compspec was defined, directory name completion is attempted. - If the --oo pplluussddiirrss option was supplied to ccoommpplleettee when the compspec + If the --oo pplluussddiirrss option was supplied to ccoommpplleettee when the compspec was defined, directory name completion is attempted and any matches are added to the results of the other actions. - By default, if a compspec is found, whatever it generates is returned - to the completion code as the full set of possible completions. The + By default, if a compspec is found, whatever it generates is returned + to the completion code as the full set of possible completions. The default bbaasshh completions are not attempted, and the readline default of filename completion is disabled. If the --oo bbaasshhddeeffaauulltt option was sup- - plied to ccoommpplleettee when the compspec was defined, the bbaasshh default com- + plied to ccoommpplleettee when the compspec was defined, the bbaasshh default com- pletions are attempted if the compspec generates no matches. If the --oo - ddeeffaauulltt option was supplied to ccoommpplleettee when the compspec was defined, - readline's default completion will be performed if the compspec (and, + ddeeffaauulltt option was supplied to ccoommpplleettee when the compspec was defined, + readline's default completion will be performed if the compspec (and, if attempted, the default bbaasshh completions) generate no matches. - When a compspec indicates that directory name completion is desired, - the programmable completion functions force readline to append a slash - to completed names which are symbolic links to directories, subject to - the value of the mmaarrkk--ddiirreeccttoorriieess readline variable, regardless of the + When a compspec indicates that directory name completion is desired, + the programmable completion functions force readline to append a slash + to completed names which are symbolic links to directories, subject to + the value of the mmaarrkk--ddiirreeccttoorriieess readline variable, regardless of the setting of the mmaarrkk--ssyymmlliinnkkeedd--ddiirreeccttoorriieess readline variable. HHIISSTTOORRYY - When the --oo hhiissttoorryy option to the sseett builtin is enabled, the shell + When the --oo hhiissttoorryy option to the sseett builtin is enabled, the shell provides access to the _c_o_m_m_a_n_d _h_i_s_t_o_r_y, the list of commands previously - typed. The value of the HHIISSTTSSIIZZEE variable is used as the number of + typed. The value of the HHIISSTTSSIIZZEE variable is used as the number of commands to save in a history list. The text of the last HHIISSTTSSIIZZEE com- - mands (default 500) is saved. The shell stores each command in the - history list prior to parameter and variable expansion (see EEXXPPAANNSSIIOONN - above) but after history expansion is performed, subject to the values + mands (default 500) is saved. The shell stores each command in the + history list prior to parameter and variable expansion (see EEXXPPAANNSSIIOONN + above) but after history expansion is performed, subject to the values of the shell variables HHIISSTTIIGGNNOORREE and HHIISSTTCCOONNTTRROOLL. On startup, the history is initialized from the file named by the vari- - able HHIISSTTFFIILLEE (default _~_/_._b_a_s_h___h_i_s_t_o_r_y). The file named by the value - of HHIISSTTFFIILLEE is truncated, if necessary, to contain no more than the + able HHIISSTTFFIILLEE (default _~_/_._b_a_s_h___h_i_s_t_o_r_y). The file named by the value + of HHIISSTTFFIILLEE is truncated, if necessary, to contain no more than the number of lines specified by the value of HHIISSTTFFIILLEESSIIZZEE. When an inter- - active shell exits, the last $$HHIISSTTSSIIZZEE lines are copied from the his- + active shell exits, the last $$HHIISSTTSSIIZZEE lines are copied from the his- tory list to $$HHIISSTTFFIILLEE. If the hhiissttaappppeenndd shell option is enabled (see the description of sshhoopptt under SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below), the lines - are appended to the history file, otherwise the history file is over- - written. If HHIISSTTFFIILLEE is unset, or if the history file is unwritable, - the history is not saved. After saving the history, the history file - is truncated to contain no more than HHIISSTTFFIILLEESSIIZZEE lines. If HHIISSTTFFIILLEE-- + are appended to the history file, otherwise the history file is over- + written. If HHIISSTTFFIILLEE is unset, or if the history file is unwritable, + the history is not saved. After saving the history, the history file + is truncated to contain no more than HHIISSTTFFIILLEESSIIZZEE lines. If HHIISSTTFFIILLEE-- SSIIZZEE is not set, no truncation is performed. - The builtin command ffcc (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below) may be used + The builtin command ffcc (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below) may be used to list or edit and re-execute a portion of the history list. The hhiiss-- - ttoorryy builtin may be used to display or modify the history list and - manipulate the history file. When using command-line editing, search - commands are available in each editing mode that provide access to the + ttoorryy builtin may be used to display or modify the history list and + manipulate the history file. When using command-line editing, search + commands are available in each editing mode that provide access to the history list. - The shell allows control over which commands are saved on the history + The shell allows control over which commands are saved on the history list. The HHIISSTTCCOONNTTRROOLL and HHIISSTTIIGGNNOORREE variables may be set to cause the shell to save only a subset of the commands entered. The ccmmddhhiisstt shell - option, if enabled, causes the shell to attempt to save each line of a - multi-line command in the same history entry, adding semicolons where - necessary to preserve syntactic correctness. The lliitthhiisstt shell option - causes the shell to save the command with embedded newlines instead of + option, if enabled, causes the shell to attempt to save each line of a + multi-line command in the same history entry, adding semicolons where + necessary to preserve syntactic correctness. The lliitthhiisstt shell option + causes the shell to save the command with embedded newlines instead of semicolons. See the description of the sshhoopptt builtin below under SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS for information on setting and unsetting shell options. HHIISSTTOORRYY EEXXPPAANNSSIIOONN - The shell supports a history expansion feature that is similar to the - history expansion in ccsshh.. This section describes what syntax features - are available. This feature is enabled by default for interactive + The shell supports a history expansion feature that is similar to the + history expansion in ccsshh.. This section describes what syntax features + are available. This feature is enabled by default for interactive shells, and can be disabled using the ++HH option to the sseett builtin com- mand (see SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS below). Non-interactive shells do not perform history expansion by default. History expansions introduce words from the history list into the input - stream, making it easy to repeat commands, insert the arguments to a + stream, making it easy to repeat commands, insert the arguments to a previous command into the current input line, or fix errors in previous commands quickly. - History expansion is performed immediately after a complete line is - read, before the shell breaks it into words. It takes place in two - parts. The first is to determine which line from the history list to + History expansion is performed immediately after a complete line is + read, before the shell breaks it into words. It takes place in two + parts. The first is to determine which line from the history list to use during substitution. The second is to select portions of that line for inclusion into the current one. The line selected from the history - is the _e_v_e_n_t, and the portions of that line that are acted upon are - _w_o_r_d_s. Various _m_o_d_i_f_i_e_r_s are available to manipulate the selected + is the _e_v_e_n_t, and the portions of that line that are acted upon are + _w_o_r_d_s. Various _m_o_d_i_f_i_e_r_s are available to manipulate the selected words. The line is broken into words in the same fashion as when read- - ing input, so that several _m_e_t_a_c_h_a_r_a_c_t_e_r-separated words surrounded by - quotes are considered one word. History expansions are introduced by - the appearance of the history expansion character, which is !! by - default. Only backslash (\\) and single quotes can quote the history + ing input, so that several _m_e_t_a_c_h_a_r_a_c_t_e_r-separated words surrounded by + quotes are considered one word. History expansions are introduced by + the appearance of the history expansion character, which is !! by + default. Only backslash (\\) and single quotes can quote the history expansion character. - Several characters inhibit history expansion if found immediately fol- - lowing the history expansion character, even if it is unquoted: space, - tab, newline, carriage return, and ==. If the eexxttgglloobb shell option is + Several characters inhibit history expansion if found immediately fol- + lowing the history expansion character, even if it is unquoted: space, + tab, newline, carriage return, and ==. If the eexxttgglloobb shell option is enabled, (( will also inhibit expansion. - Several shell options settable with the sshhoopptt builtin may be used to - tailor the behavior of history expansion. If the hhiissttvveerriiffyy shell + Several shell options settable with the sshhoopptt builtin may be used to + tailor the behavior of history expansion. If the hhiissttvveerriiffyy shell option is enabled (see the description of the sshhoopptt builtin), and rreeaadd-- lliinnee is being used, history substitutions are not immediately passed to - the shell parser. Instead, the expanded line is reloaded into the + the shell parser. Instead, the expanded line is reloaded into the rreeaaddlliinnee editing buffer for further modification. If rreeaaddlliinnee is being used, and the hhiissttrreeeeddiitt shell option is enabled, a failed history sub- stitution will be reloaded into the rreeaaddlliinnee editing buffer for correc- - tion. The --pp option to the hhiissttoorryy builtin command may be used to see + tion. The --pp option to the hhiissttoorryy builtin command may be used to see what a history expansion will do before using it. The --ss option to the - hhiissttoorryy builtin may be used to add commands to the end of the history - list without actually executing them, so that they are available for + hhiissttoorryy builtin may be used to add commands to the end of the history + list without actually executing them, so that they are available for subsequent recall. - The shell allows control of the various characters used by the history + The shell allows control of the various characters used by the history expansion mechanism (see the description of hhiissttcchhaarrss above under SShheellll VVaarriiaabblleess). EEvveenntt DDeessiiggnnaattoorrss - An event designator is a reference to a command line entry in the his- + An event designator is a reference to a command line entry in the his- tory list. - !! Start a history substitution, except when followed by a bbllaannkk, - newline, carriage return, = or ( (when the eexxttgglloobb shell option + !! Start a history substitution, except when followed by a bbllaannkk, + newline, carriage return, = or ( (when the eexxttgglloobb shell option is enabled using the sshhoopptt builtin). !!_n Refer to command line _n. !!--_n Refer to the current command line minus _n. @@ -3223,21 +3230,21 @@ HHIISSTTOORRYY EEXXPPAANNSSIIOONN !!_s_t_r_i_n_g Refer to the most recent command starting with _s_t_r_i_n_g. !!??_s_t_r_i_n_g[[??]] - Refer to the most recent command containing _s_t_r_i_n_g. The trail- + Refer to the most recent command containing _s_t_r_i_n_g. The trail- ing ?? may be omitted if _s_t_r_i_n_g is followed immediately by a new- line. ^^_s_t_r_i_n_g_1^^_s_t_r_i_n_g_2^^ - Quick substitution. Repeat the last command, replacing _s_t_r_i_n_g_1 + Quick substitution. Repeat the last command, replacing _s_t_r_i_n_g_1 with _s_t_r_i_n_g_2. Equivalent to ``!!:s/_s_t_r_i_n_g_1/_s_t_r_i_n_g_2/'' (see MMoodd-- iiffiieerrss below). !!## The entire command line typed so far. WWoorrdd DDeessiiggnnaattoorrss - Word designators are used to select desired words from the event. A :: - separates the event specification from the word designator. It may be - omitted if the word designator begins with a ^^, $$, **, --, or %%. Words - are numbered from the beginning of the line, with the first word being - denoted by 0 (zero). Words are inserted into the current line sepa- + Word designators are used to select desired words from the event. A :: + separates the event specification from the word designator. It may be + omitted if the word designator begins with a ^^, $$, **, --, or %%. Words + are numbered from the beginning of the line, with the first word being + denoted by 0 (zero). Words are inserted into the current line sepa- rated by single spaces. 00 ((zzeerroo)) @@ -3247,17 +3254,17 @@ HHIISSTTOORRYY EEXXPPAANNSSIIOONN $$ The last argument. %% The word matched by the most recent `?_s_t_r_i_n_g?' search. _x--_y A range of words; `-_y' abbreviates `0-_y'. - ** All of the words but the zeroth. This is a synonym for `_1_-_$'. - It is not an error to use ** if there is just one word in the + ** All of the words but the zeroth. This is a synonym for `_1_-_$'. + It is not an error to use ** if there is just one word in the event; the empty string is returned in that case. xx** Abbreviates _x_-_$. xx-- Abbreviates _x_-_$ like xx**, but omits the last word. - If a word designator is supplied without an event specification, the + If a word designator is supplied without an event specification, the previous command is used as the event. MMooddiiffiieerrss - After the optional word designator, there may appear a sequence of one + After the optional word designator, there may appear a sequence of one or more of the following modifiers, each preceded by a `:'. hh Remove a trailing file name component, leaving only the head. @@ -3266,24 +3273,24 @@ HHIISSTTOORRYY EEXXPPAANNSSIIOONN ee Remove all but the trailing suffix. pp Print the new command but do not execute it. qq Quote the substituted words, escaping further substitutions. - xx Quote the substituted words as with qq, but break into words at + xx Quote the substituted words as with qq, but break into words at bbllaannkkss and newlines. ss//_o_l_d//_n_e_w// - Substitute _n_e_w for the first occurrence of _o_l_d in the event - line. Any delimiter can be used in place of /. The final - delimiter is optional if it is the last character of the event - line. The delimiter may be quoted in _o_l_d and _n_e_w with a single - backslash. If & appears in _n_e_w, it is replaced by _o_l_d. A - single backslash will quote the &. If _o_l_d is null, it is set to - the last _o_l_d substituted, or, if no previous history substitu- + Substitute _n_e_w for the first occurrence of _o_l_d in the event + line. Any delimiter can be used in place of /. The final + delimiter is optional if it is the last character of the event + line. The delimiter may be quoted in _o_l_d and _n_e_w with a single + backslash. If & appears in _n_e_w, it is replaced by _o_l_d. A sin- + gle backslash will quote the &. If _o_l_d is null, it is set to + the last _o_l_d substituted, or, if no previous history substitu- tions took place, the last _s_t_r_i_n_g in a !!??_s_t_r_i_n_g[[??]] search. && Repeat the previous substitution. gg Cause changes to be applied over the entire event line. This is - used in conjunction with `::ss' (e.g., `::ggss//_o_l_d//_n_e_w//') or `::&&'. - If used with `::ss', any delimiter can be used in place of /, and - the final delimiter is optional if it is the last character of + used in conjunction with `::ss' (e.g., `::ggss//_o_l_d//_n_e_w//') or `::&&'. + If used with `::ss', any delimiter can be used in place of /, and + the final delimiter is optional if it is the last character of the event line. An aa may be used as a synonym for gg. - GG Apply the following `ss' modifier once to each word in the event + GG Apply the following `ss' modifier once to each word in the event line. SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS @@ -3291,44 +3298,44 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS as accepting options preceded by -- accepts ---- to signify the end of the options. :: [_a_r_g_u_m_e_n_t_s] - No effect; the command does nothing beyond expanding _a_r_g_u_m_e_n_t_s - and performing any specified redirections. A zero exit code is + No effect; the command does nothing beyond expanding _a_r_g_u_m_e_n_t_s + and performing any specified redirections. A zero exit code is returned. .. _f_i_l_e_n_a_m_e [_a_r_g_u_m_e_n_t_s] ssoouurrccee _f_i_l_e_n_a_m_e [_a_r_g_u_m_e_n_t_s] - Read and execute commands from _f_i_l_e_n_a_m_e in the current shell - environment and return the exit status of the last command exe- + Read and execute commands from _f_i_l_e_n_a_m_e in the current shell + environment and return the exit status of the last command exe- cuted from _f_i_l_e_n_a_m_e. If _f_i_l_e_n_a_m_e does not contain a slash, file - names in PPAATTHH are used to find the directory containing _f_i_l_e_- - _n_a_m_e. The file searched for in PPAATTHH need not be executable. - When bbaasshh is not in _p_o_s_i_x _m_o_d_e, the current directory is - searched if no file is found in PPAATTHH. If the ssoouurrcceeppaatthh option - to the sshhoopptt builtin command is turned off, the PPAATTHH is not - searched. If any _a_r_g_u_m_e_n_t_s are supplied, they become the posi- - tional parameters when _f_i_l_e_n_a_m_e is executed. Otherwise the - positional parameters are unchanged. The return status is the - status of the last command exited within the script (0 if no - commands are executed), and false if _f_i_l_e_n_a_m_e is not found or + names in PPAATTHH are used to find the directory containing _f_i_l_e_- + _n_a_m_e. The file searched for in PPAATTHH need not be executable. + When bbaasshh is not in _p_o_s_i_x _m_o_d_e, the current directory is + searched if no file is found in PPAATTHH. If the ssoouurrcceeppaatthh option + to the sshhoopptt builtin command is turned off, the PPAATTHH is not + searched. If any _a_r_g_u_m_e_n_t_s are supplied, they become the posi- + tional parameters when _f_i_l_e_n_a_m_e is executed. Otherwise the + positional parameters are unchanged. The return status is the + status of the last command exited within the script (0 if no + commands are executed), and false if _f_i_l_e_n_a_m_e is not found or cannot be read. aalliiaass [--pp] [_n_a_m_e[=_v_a_l_u_e] ...] AAlliiaass with no arguments or with the --pp option prints the list of - aliases in the form aalliiaass _n_a_m_e=_v_a_l_u_e on standard output. When - arguments are supplied, an alias is defined for each _n_a_m_e whose + aliases in the form aalliiaass _n_a_m_e=_v_a_l_u_e on standard output. When + arguments are supplied, an alias is defined for each _n_a_m_e whose _v_a_l_u_e is given. A trailing space in _v_a_l_u_e causes the next word to be checked for alias substitution when the alias is expanded. - For each _n_a_m_e in the argument list for which no _v_a_l_u_e is sup- - plied, the name and value of the alias is printed. AAlliiaass - returns true unless a _n_a_m_e is given for which no alias has been + For each _n_a_m_e in the argument list for which no _v_a_l_u_e is sup- + plied, the name and value of the alias is printed. AAlliiaass + returns true unless a _n_a_m_e is given for which no alias has been defined. bbgg [_j_o_b_s_p_e_c] Resume the suspended job _j_o_b_s_p_e_c in the background, as if it had - been started with &&. If _j_o_b_s_p_e_c is not present, the shell's - notion of the _c_u_r_r_e_n_t _j_o_b is used. bbgg _j_o_b_s_p_e_c returns 0 unless - run when job control is disabled or, when run with job control - enabled, if _j_o_b_s_p_e_c was not found or started without job con- + been started with &&. If _j_o_b_s_p_e_c is not present, the shell's + notion of the _c_u_r_r_e_n_t _j_o_b is used. bbgg _j_o_b_s_p_e_c returns 0 unless + run when job control is disabled or, when run with job control + enabled, if _j_o_b_s_p_e_c was not found or started without job con- trol. bbiinndd [--mm _k_e_y_m_a_p] [--llppssvvPPSSVV] @@ -3337,29 +3344,29 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS bbiinndd [--mm _k_e_y_m_a_p] --xx _k_e_y_s_e_q:_s_h_e_l_l_-_c_o_m_m_a_n_d bbiinndd [--mm _k_e_y_m_a_p] _k_e_y_s_e_q:_f_u_n_c_t_i_o_n_-_n_a_m_e bbiinndd _r_e_a_d_l_i_n_e_-_c_o_m_m_a_n_d - Display current rreeaaddlliinnee key and function bindings, bind a key - sequence to a rreeaaddlliinnee function or macro, or set a rreeaaddlliinnee - variable. Each non-option argument is a command as it would - appear in _._i_n_p_u_t_r_c, but each binding or command must be passed - as a separate argument; e.g., '"\C-x\C-r": re-read-init-file'. + Display current rreeaaddlliinnee key and function bindings, bind a key + sequence to a rreeaaddlliinnee function or macro, or set a rreeaaddlliinnee + variable. Each non-option argument is a command as it would + appear in _._i_n_p_u_t_r_c, but each binding or command must be passed + as a separate argument; e.g., '"\C-x\C-r": re-read-init-file'. Options, if supplied, have the following meanings: --mm _k_e_y_m_a_p Use _k_e_y_m_a_p as the keymap to be affected by the subsequent bindings. Acceptable _k_e_y_m_a_p names are _e_m_a_c_s_, _e_m_a_c_s_-_s_t_a_n_- - _d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_m_o_v_e_, _v_i_-_c_o_m_m_a_n_d, - and _v_i_-_i_n_s_e_r_t. _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; _e_m_a_c_s is + _d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_m_o_v_e_, _v_i_-_c_o_m_m_a_n_d, + and _v_i_-_i_n_s_e_r_t. _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; _e_m_a_c_s is equivalent to _e_m_a_c_s_-_s_t_a_n_d_a_r_d. --ll List the names of all rreeaaddlliinnee functions. - --pp Display rreeaaddlliinnee function names and bindings in such a + --pp Display rreeaaddlliinnee function names and bindings in such a way that they can be re-read. --PP List current rreeaaddlliinnee function names and bindings. - --vv Display rreeaaddlliinnee variable names and values in such a way + --vv Display rreeaaddlliinnee variable names and values in such a way that they can be re-read. --VV List current rreeaaddlliinnee variable names and values. - --ss Display rreeaaddlliinnee key sequences bound to macros and the - strings they output in such a way that they can be re- + --ss Display rreeaaddlliinnee key sequences bound to macros and the + strings they output in such a way that they can be re- read. - --SS Display rreeaaddlliinnee key sequences bound to macros and the + --SS Display rreeaaddlliinnee key sequences bound to macros and the strings they output. --ff _f_i_l_e_n_a_m_e Read key bindings from _f_i_l_e_n_a_m_e. @@ -3370,136 +3377,136 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS --rr _k_e_y_s_e_q Remove any current binding for _k_e_y_s_e_q. --xx _k_e_y_s_e_q::_s_h_e_l_l_-_c_o_m_m_a_n_d - Cause _s_h_e_l_l_-_c_o_m_m_a_n_d to be executed whenever _k_e_y_s_e_q is + Cause _s_h_e_l_l_-_c_o_m_m_a_n_d to be executed whenever _k_e_y_s_e_q is entered. - The return value is 0 unless an unrecognized option is given or + The return value is 0 unless an unrecognized option is given or an error occurred. bbrreeaakk [_n] - Exit from within a ffoorr, wwhhiillee, uunnttiill, or sseelleecctt loop. If _n is - specified, break _n levels. _n must be >= 1. If _n is greater - than the number of enclosing loops, all enclosing loops are + Exit from within a ffoorr, wwhhiillee, uunnttiill, or sseelleecctt loop. If _n is + specified, break _n levels. _n must be >= 1. If _n is greater + than the number of enclosing loops, all enclosing loops are exited. The return value is 0 unless the shell is not executing a loop when bbrreeaakk is executed. bbuuiillttiinn _s_h_e_l_l_-_b_u_i_l_t_i_n [_a_r_g_u_m_e_n_t_s] - Execute the specified shell builtin, passing it _a_r_g_u_m_e_n_t_s, and + Execute the specified shell builtin, passing it _a_r_g_u_m_e_n_t_s, and return its exit status. This is useful when defining a function - whose name is the same as a shell builtin, retaining the func- + whose name is the same as a shell builtin, retaining the func- tionality of the builtin within the function. The ccdd builtin is - commonly redefined this way. The return status is false if + commonly redefined this way. The return status is false if _s_h_e_l_l_-_b_u_i_l_t_i_n is not a shell builtin command. ccdd [--LL||--PP] [_d_i_r] - Change the current directory to _d_i_r. The variable HHOOMMEE is the - default _d_i_r. The variable CCDDPPAATTHH defines the search path for - the directory containing _d_i_r. Alternative directory names in - CCDDPPAATTHH are separated by a colon (:). A null directory name in - CCDDPPAATTHH is the same as the current directory, i.e., ``..''. If - _d_i_r begins with a slash (/), then CCDDPPAATTHH is not used. The --PP - option says to use the physical directory structure instead of - following symbolic links (see also the --PP option to the sseett + Change the current directory to _d_i_r. The variable HHOOMMEE is the + default _d_i_r. The variable CCDDPPAATTHH defines the search path for + the directory containing _d_i_r. Alternative directory names in + CCDDPPAATTHH are separated by a colon (:). A null directory name in + CCDDPPAATTHH is the same as the current directory, i.e., ``..''. If + _d_i_r begins with a slash (/), then CCDDPPAATTHH is not used. The --PP + option says to use the physical directory structure instead of + following symbolic links (see also the --PP option to the sseett builtin command); the --LL option forces symbolic links to be fol- - lowed. An argument of -- is equivalent to $$OOLLDDPPWWDD. If a non- - empty directory name from CCDDPPAATTHH is used, or if -- is the first - argument, and the directory change is successful, the absolute + lowed. An argument of -- is equivalent to $$OOLLDDPPWWDD. If a non- + empty directory name from CCDDPPAATTHH is used, or if -- is the first + argument, and the directory change is successful, the absolute pathname of the new working directory is written to the standard - output. The return value is true if the directory was success- + output. The return value is true if the directory was success- fully changed; false otherwise. ccaalllleerr [_e_x_p_r] Returns the context of any active subroutine call (a shell func- - tion or a script executed with the .. or ssoouurrccee builtins. With- + tion or a script executed with the .. or ssoouurrccee builtins. With- out _e_x_p_r, ccaalllleerr displays the line number and source filename of - the current subroutine call. If a non-negative integer is sup- + the current subroutine call. If a non-negative integer is sup- plied as _e_x_p_r, ccaalllleerr displays the line number, subroutine name, - and source file corresponding to that position in the current - execution call stack. This extra information may be used, for - example, to print a stack trace. The current frame is frame 0. - The return value is 0 unless the shell is not executing a sub- - routine call or _e_x_p_r does not correspond to a valid position in + and source file corresponding to that position in the current + execution call stack. This extra information may be used, for + example, to print a stack trace. The current frame is frame 0. + The return value is 0 unless the shell is not executing a sub- + routine call or _e_x_p_r does not correspond to a valid position in the call stack. ccoommmmaanndd [--ppVVvv] _c_o_m_m_a_n_d [_a_r_g ...] - Run _c_o_m_m_a_n_d with _a_r_g_s suppressing the normal shell function - lookup. Only builtin commands or commands found in the PPAATTHH are - executed. If the --pp option is given, the search for _c_o_m_m_a_n_d is - performed using a default value for PPAATTHH that is guaranteed to - find all of the standard utilities. If either the --VV or --vv + Run _c_o_m_m_a_n_d with _a_r_g_s suppressing the normal shell function + lookup. Only builtin commands or commands found in the PPAATTHH are + executed. If the --pp option is given, the search for _c_o_m_m_a_n_d is + performed using a default value for PPAATTHH that is guaranteed to + find all of the standard utilities. If either the --VV or --vv option is supplied, a description of _c_o_m_m_a_n_d is printed. The --vv - option causes a single word indicating the command or file name + option causes a single word indicating the command or file name used to invoke _c_o_m_m_a_n_d to be displayed; the --VV option produces a - more verbose description. If the --VV or --vv option is supplied, - the exit status is 0 if _c_o_m_m_a_n_d was found, and 1 if not. If + more verbose description. If the --VV or --vv option is supplied, + the exit status is 0 if _c_o_m_m_a_n_d was found, and 1 if not. If neither option is supplied and an error occurred or _c_o_m_m_a_n_d can- - not be found, the exit status is 127. Otherwise, the exit sta- + not be found, the exit status is 127. Otherwise, the exit sta- tus of the ccoommmmaanndd builtin is the exit status of _c_o_m_m_a_n_d. ccoommppggeenn [_o_p_t_i_o_n] [_w_o_r_d] - Generate possible completion matches for _w_o_r_d according to the - _o_p_t_i_o_ns, which may be any option accepted by the ccoommpplleettee - builtin with the exception of --pp and --rr, and write the matches - to the standard output. When using the --FF or --CC options, the - various shell variables set by the programmable completion + Generate possible completion matches for _w_o_r_d according to the + _o_p_t_i_o_ns, which may be any option accepted by the ccoommpplleettee + builtin with the exception of --pp and --rr, and write the matches + to the standard output. When using the --FF or --CC options, the + various shell variables set by the programmable completion facilities, while available, will not have useful values. - The matches will be generated in the same way as if the pro- - grammable completion code had generated them directly from a + The matches will be generated in the same way as if the pro- + grammable completion code had generated them directly from a completion specification with the same flags. If _w_o_r_d is speci- fied, only those completions matching _w_o_r_d will be displayed. - The return value is true unless an invalid option is supplied, + The return value is true unless an invalid option is supplied, or no matches were generated. - ccoommpplleettee [--aabbccddeeffggjjkkssuuvv] [--oo _c_o_m_p_-_o_p_t_i_o_n] [--AA _a_c_t_i_o_n] [--GG _g_l_o_b_p_a_t] [--WW + ccoommpplleettee [--aabbccddeeffggjjkkssuuvv] [--oo _c_o_m_p_-_o_p_t_i_o_n] [--AA _a_c_t_i_o_n] [--GG _g_l_o_b_p_a_t] [--WW _w_o_r_d_l_i_s_t] [--PP _p_r_e_f_i_x] [--SS _s_u_f_f_i_x] [--XX _f_i_l_t_e_r_p_a_t] [--FF _f_u_n_c_t_i_o_n] [--CC _c_o_m_m_a_n_d] _n_a_m_e [_n_a_m_e _._._.] ccoommpplleettee --pprr [_n_a_m_e ...] - Specify how arguments to each _n_a_m_e should be completed. If the - --pp option is supplied, or if no options are supplied, existing - completion specifications are printed in a way that allows them + Specify how arguments to each _n_a_m_e should be completed. If the + --pp option is supplied, or if no options are supplied, existing + completion specifications are printed in a way that allows them to be reused as input. The --rr option removes a completion spec- - ification for each _n_a_m_e, or, if no _n_a_m_es are supplied, all com- + ification for each _n_a_m_e, or, if no _n_a_m_es are supplied, all com- pletion specifications. - The process of applying these completion specifications when - word completion is attempted is described above under PPrroo-- + The process of applying these completion specifications when + word completion is attempted is described above under PPrroo-- ggrraammmmaabbllee CCoommpplleettiioonn. - Other options, if specified, have the following meanings. The - arguments to the --GG, --WW, and --XX options (and, if necessary, the - --PP and --SS options) should be quoted to protect them from expan- + Other options, if specified, have the following meanings. The + arguments to the --GG, --WW, and --XX options (and, if necessary, the + --PP and --SS options) should be quoted to protect them from expan- sion before the ccoommpplleettee builtin is invoked. --oo _c_o_m_p_-_o_p_t_i_o_n - The _c_o_m_p_-_o_p_t_i_o_n controls several aspects of the comp- - spec's behavior beyond the simple generation of comple- + The _c_o_m_p_-_o_p_t_i_o_n controls several aspects of the comp- + spec's behavior beyond the simple generation of comple- tions. _c_o_m_p_-_o_p_t_i_o_n may be one of: bbaasshhddeeffaauulltt Perform the rest of the default bbaasshh completions if the compspec generates no matches. - ddeeffaauulltt Use readline's default filename completion if + ddeeffaauulltt Use readline's default filename completion if the compspec generates no matches. ddiirrnnaammeess - Perform directory name completion if the comp- + Perform directory name completion if the comp- spec generates no matches. ffiilleennaammeess - Tell readline that the compspec generates file- - names, so it can perform any filename-specific - processing (like adding a slash to directory + Tell readline that the compspec generates file- + names, so it can perform any filename-specific + processing (like adding a slash to directory names or suppressing trailing spaces). Intended to be used with shell functions. - nnoossppaaccee Tell readline not to append a space (the - default) to words completed at the end of the + nnoossppaaccee Tell readline not to append a space (the + default) to words completed at the end of the line. --AA _a_c_t_i_o_n - The _a_c_t_i_o_n may be one of the following to generate a + The _a_c_t_i_o_n may be one of the following to generate a list of possible completions: aalliiaass Alias names. May also be specified as --aa. aarrrraayyvvaarr Array variable names. bbiinnddiinngg RReeaaddlliinnee key binding names. - bbuuiillttiinn Names of shell builtin commands. May also be + bbuuiillttiinn Names of shell builtin commands. May also be specified as --bb. ccoommmmaanndd Command names. May also be specified as --cc. ddiirreeccttoorryy @@ -3507,7 +3514,7 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS ddiissaabblleedd Names of disabled shell builtins. eennaabblleedd Names of enabled shell builtins. - eexxppoorrtt Names of exported shell variables. May also be + eexxppoorrtt Names of exported shell variables. May also be specified as --ee. ffiillee File names. May also be specified as --ff. ffuunnccttiioonn @@ -3516,17 +3523,17 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS hheellppttooppiicc Help topics as accepted by the hheellpp builtin. hhoossttnnaammee - Hostnames, as taken from the file specified by + Hostnames, as taken from the file specified by the HHOOSSTTFFIILLEE shell variable. - jjoobb Job names, if job control is active. May also + jjoobb Job names, if job control is active. May also be specified as --jj. - kkeeyywwoorrdd Shell reserved words. May also be specified as + kkeeyywwoorrdd Shell reserved words. May also be specified as --kk. rruunnnniinngg Names of running jobs, if job control is active. sseerrvviiccee Service names. May also be specified as --ss. - sseettoopptt Valid arguments for the --oo option to the sseett + sseettoopptt Valid arguments for the --oo option to the sseett builtin. - sshhoopptt Shell option names as accepted by the sshhoopptt + sshhoopptt Shell option names as accepted by the sshhoopptt builtin. ssiiggnnaall Signal names. ssttooppppeedd Names of stopped jobs, if job control is active. @@ -3535,135 +3542,135 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS Names of all shell variables. May also be spec- ified as --vv. --GG _g_l_o_b_p_a_t - The filename expansion pattern _g_l_o_b_p_a_t is expanded to + The filename expansion pattern _g_l_o_b_p_a_t is expanded to generate the possible completions. --WW _w_o_r_d_l_i_s_t - The _w_o_r_d_l_i_s_t is split using the characters in the IIFFSS - special variable as delimiters, and each resultant word - is expanded. The possible completions are the members - of the resultant list which match the word being com- + The _w_o_r_d_l_i_s_t is split using the characters in the IIFFSS + special variable as delimiters, and each resultant word + is expanded. The possible completions are the members + of the resultant list which match the word being com- pleted. --CC _c_o_m_m_a_n_d - _c_o_m_m_a_n_d is executed in a subshell environment, and its + _c_o_m_m_a_n_d is executed in a subshell environment, and its output is used as the possible completions. --FF _f_u_n_c_t_i_o_n - The shell function _f_u_n_c_t_i_o_n is executed in the current - shell environment. When it finishes, the possible com- - pletions are retrieved from the value of the CCOOMMPPRREEPPLLYY + The shell function _f_u_n_c_t_i_o_n is executed in the current + shell environment. When it finishes, the possible com- + pletions are retrieved from the value of the CCOOMMPPRREEPPLLYY array variable. --XX _f_i_l_t_e_r_p_a_t - _f_i_l_t_e_r_p_a_t is a pattern as used for filename expansion. + _f_i_l_t_e_r_p_a_t is a pattern as used for filename expansion. It is applied to the list of possible completions gener- - ated by the preceding options and arguments, and each - completion matching _f_i_l_t_e_r_p_a_t is removed from the list. - A leading !! in _f_i_l_t_e_r_p_a_t negates the pattern; in this - case, any completion not matching _f_i_l_t_e_r_p_a_t is removed. + ated by the preceding options and arguments, and each + completion matching _f_i_l_t_e_r_p_a_t is removed from the list. + A leading !! in _f_i_l_t_e_r_p_a_t negates the pattern; in this + case, any completion not matching _f_i_l_t_e_r_p_a_t is removed. --PP _p_r_e_f_i_x - _p_r_e_f_i_x is added at the beginning of each possible com- + _p_r_e_f_i_x is added at the beginning of each possible com- pletion after all other options have been applied. --SS _s_u_f_f_i_x _s_u_f_f_i_x is appended to each possible completion after all other options have been applied. - The return value is true unless an invalid option is supplied, - an option other than --pp or --rr is supplied without a _n_a_m_e argu- - ment, an attempt is made to remove a completion specification + The return value is true unless an invalid option is supplied, + an option other than --pp or --rr is supplied without a _n_a_m_e argu- + ment, an attempt is made to remove a completion specification for a _n_a_m_e for which no specification exists, or an error occurs adding a completion specification. ccoonnttiinnuuee [_n] Resume the next iteration of the enclosing ffoorr, wwhhiillee, uunnttiill, or - sseelleecctt loop. If _n is specified, resume at the _nth enclosing - loop. _n must be >= 1. If _n is greater than the number of - enclosing loops, the last enclosing loop (the ``top-level'' + sseelleecctt loop. If _n is specified, resume at the _nth enclosing + loop. _n must be >= 1. If _n is greater than the number of + enclosing loops, the last enclosing loop (the ``top-level'' loop) is resumed. The return value is 0 unless the shell is not executing a loop when ccoonnttiinnuuee is executed. ddeeccllaarree [--aaffFFiirrttxx] [--pp] [_n_a_m_e[=_v_a_l_u_e] ...] ttyyppeesseett [--aaffFFiirrttxx] [--pp] [_n_a_m_e[=_v_a_l_u_e] ...] - Declare variables and/or give them attributes. If no _n_a_m_es are - given then display the values of variables. The --pp option will - display the attributes and values of each _n_a_m_e. When --pp is - used, additional options are ignored. The --FF option inhibits - the display of function definitions; only the function name and + Declare variables and/or give them attributes. If no _n_a_m_es are + given then display the values of variables. The --pp option will + display the attributes and values of each _n_a_m_e. When --pp is + used, additional options are ignored. The --FF option inhibits + the display of function definitions; only the function name and attributes are printed. If the eexxttddeebbuugg shell option is enabled - using sshhoopptt, the source file name and line number where the - function is defined are displayed as well. The --FF option - implies --ff. The following options can be used to restrict out- - put to variables with the specified attribute or to give vari- + using sshhoopptt, the source file name and line number where the + function is defined are displayed as well. The --FF option + implies --ff. The following options can be used to restrict out- + put to variables with the specified attribute or to give vari- ables attributes: --aa Each _n_a_m_e is an array variable (see AArrrraayyss above). --ff Use function names only. --ii The variable is treated as an integer; arithmetic evalua- - tion (see AARRIITTHHMMEETTIICC EEVVAALLUUAATTIIOONN )) is performed when the + tion (see AARRIITTHHMMEETTIICC EEVVAALLUUAATTIIOONN )) is performed when the variable is assigned a value. --rr Make _n_a_m_es readonly. These names cannot then be assigned values by subsequent assignment statements or unset. - --tt Give each _n_a_m_e the _t_r_a_c_e attribute. Traced functions + --tt Give each _n_a_m_e the _t_r_a_c_e attribute. Traced functions inherit the DDEEBBUUGG trap from the calling shell. The trace attribute has no special meaning for variables. - --xx Mark _n_a_m_es for export to subsequent commands via the + --xx Mark _n_a_m_es for export to subsequent commands via the environment. - Using `+' instead of `-' turns off the attribute instead, with - the exception that ++aa may not be used to destroy an array vari- - able. When used in a function, makes each _n_a_m_e local, as with - the llooccaall command. If a variable name is followed by =_v_a_l_u_e, - the value of the variable is set to _v_a_l_u_e. The return value is + Using `+' instead of `-' turns off the attribute instead, with + the exception that ++aa may not be used to destroy an array vari- + able. When used in a function, makes each _n_a_m_e local, as with + the llooccaall command. If a variable name is followed by =_v_a_l_u_e, + the value of the variable is set to _v_a_l_u_e. The return value is 0 unless an invalid option is encountered, an attempt is made to - define a function using ``-f foo=bar'', an attempt is made to - assign a value to a readonly variable, an attempt is made to - assign a value to an array variable without using the compound - assignment syntax (see AArrrraayyss above), one of the _n_a_m_e_s is not a - valid shell variable name, an attempt is made to turn off read- - only status for a readonly variable, an attempt is made to turn + define a function using ``-f foo=bar'', an attempt is made to + assign a value to a readonly variable, an attempt is made to + assign a value to an array variable without using the compound + assignment syntax (see AArrrraayyss above), one of the _n_a_m_e_s is not a + valid shell variable name, an attempt is made to turn off read- + only status for a readonly variable, an attempt is made to turn off array status for an array variable, or an attempt is made to display a non-existent function with --ff. ddiirrss [[--ccllppvv]] [[++_n]] [[--_n]] - Without options, displays the list of currently remembered - directories. The default display is on a single line with - directory names separated by spaces. Directories are added to - the list with the ppuusshhdd command; the ppooppdd command removes + Without options, displays the list of currently remembered + directories. The default display is on a single line with + directory names separated by spaces. Directories are added to + the list with the ppuusshhdd command; the ppooppdd command removes entries from the list. ++_n Displays the _nth entry counting from the left of the list shown by ddiirrss when invoked without options, starting with zero. - --_n Displays the _nth entry counting from the right of the + --_n Displays the _nth entry counting from the right of the list shown by ddiirrss when invoked without options, starting with zero. --cc Clears the directory stack by deleting all of the entries. - --ll Produces a longer listing; the default listing format + --ll Produces a longer listing; the default listing format uses a tilde to denote the home directory. --pp Print the directory stack with one entry per line. - --vv Print the directory stack with one entry per line, pre- + --vv Print the directory stack with one entry per line, pre- fixing each entry with its index in the stack. - The return value is 0 unless an invalid option is supplied or _n + The return value is 0 unless an invalid option is supplied or _n indexes beyond the end of the directory stack. ddiissoowwnn [--aarr] [--hh] [_j_o_b_s_p_e_c ...] - Without options, each _j_o_b_s_p_e_c is removed from the table of - active jobs. If the --hh option is given, each _j_o_b_s_p_e_c is not + Without options, each _j_o_b_s_p_e_c is removed from the table of + active jobs. If the --hh option is given, each _j_o_b_s_p_e_c is not removed from the table, but is marked so that SSIIGGHHUUPP is not sent - to the job if the shell receives a SSIIGGHHUUPP. If no _j_o_b_s_p_e_c is - present, and neither the --aa nor the --rr option is supplied, the - _c_u_r_r_e_n_t _j_o_b is used. If no _j_o_b_s_p_e_c is supplied, the --aa option - means to remove or mark all jobs; the --rr option without a _j_o_b_- - _s_p_e_c argument restricts operation to running jobs. The return + to the job if the shell receives a SSIIGGHHUUPP. If no _j_o_b_s_p_e_c is + present, and neither the --aa nor the --rr option is supplied, the + _c_u_r_r_e_n_t _j_o_b is used. If no _j_o_b_s_p_e_c is supplied, the --aa option + means to remove or mark all jobs; the --rr option without a _j_o_b_- + _s_p_e_c argument restricts operation to running jobs. The return value is 0 unless a _j_o_b_s_p_e_c does not specify a valid job. eecchhoo [--nneeEE] [_a_r_g ...] - Output the _a_r_gs, separated by spaces, followed by a newline. + Output the _a_r_gs, separated by spaces, followed by a newline. The return status is always 0. If --nn is specified, the trailing - newline is suppressed. If the --ee option is given, interpreta- - tion of the following backslash-escaped characters is enabled. - The --EE option disables the interpretation of these escape char- - acters, even on systems where they are interpreted by default. - The xxppgg__eecchhoo shell option may be used to dynamically determine - whether or not eecchhoo expands these escape characters by default. - eecchhoo does not interpret ---- to mean the end of options. eecchhoo + newline is suppressed. If the --ee option is given, interpreta- + tion of the following backslash-escaped characters is enabled. + The --EE option disables the interpretation of these escape char- + acters, even on systems where they are interpreted by default. + The xxppgg__eecchhoo shell option may be used to dynamically determine + whether or not eecchhoo expands these escape characters by default. + eecchhoo does not interpret ---- to mean the end of options. eecchhoo interprets the following escape sequences: \\aa alert (bell) \\bb backspace @@ -3675,188 +3682,188 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS \\tt horizontal tab \\vv vertical tab \\\\ backslash - \\00_n_n_n the eight-bit character whose value is the octal value + \\00_n_n_n the eight-bit character whose value is the octal value _n_n_n (zero to three octal digits) - \\_n_n_n the eight-bit character whose value is the octal value + \\_n_n_n the eight-bit character whose value is the octal value _n_n_n (one to three octal digits) - \\xx_H_H the eight-bit character whose value is the hexadecimal + \\xx_H_H the eight-bit character whose value is the hexadecimal value _H_H (one or two hex digits) eennaabbllee [--aaddnnppss] [--ff _f_i_l_e_n_a_m_e] [_n_a_m_e ...] - Enable and disable builtin shell commands. Disabling a builtin + Enable and disable builtin shell commands. Disabling a builtin allows a disk command which has the same name as a shell builtin - to be executed without specifying a full pathname, even though - the shell normally searches for builtins before disk commands. - If --nn is used, each _n_a_m_e is disabled; otherwise, _n_a_m_e_s are + to be executed without specifying a full pathname, even though + the shell normally searches for builtins before disk commands. + If --nn is used, each _n_a_m_e is disabled; otherwise, _n_a_m_e_s are enabled. For example, to use the tteesstt binary found via the PPAATTHH - instead of the shell builtin version, run ``enable -n test''. - The --ff option means to load the new builtin command _n_a_m_e from + instead of the shell builtin version, run ``enable -n test''. + The --ff option means to load the new builtin command _n_a_m_e from shared object _f_i_l_e_n_a_m_e, on systems that support dynamic loading. - The --dd option will delete a builtin previously loaded with --ff. + The --dd option will delete a builtin previously loaded with --ff. If no _n_a_m_e arguments are given, or if the --pp option is supplied, a list of shell builtins is printed. With no other option argu- - ments, the list consists of all enabled shell builtins. If --nn - is supplied, only disabled builtins are printed. If --aa is sup- - plied, the list printed includes all builtins, with an indica- - tion of whether or not each is enabled. If --ss is supplied, the - output is restricted to the POSIX _s_p_e_c_i_a_l builtins. The return - value is 0 unless a _n_a_m_e is not a shell builtin or there is an + ments, the list consists of all enabled shell builtins. If --nn + is supplied, only disabled builtins are printed. If --aa is sup- + plied, the list printed includes all builtins, with an indica- + tion of whether or not each is enabled. If --ss is supplied, the + output is restricted to the POSIX _s_p_e_c_i_a_l builtins. The return + value is 0 unless a _n_a_m_e is not a shell builtin or there is an error loading a new builtin from a shared object. eevvaall [_a_r_g ...] - The _a_r_gs are read and concatenated together into a single com- - mand. This command is then read and executed by the shell, and - its exit status is returned as the value of eevvaall. If there are + The _a_r_gs are read and concatenated together into a single com- + mand. This command is then read and executed by the shell, and + its exit status is returned as the value of eevvaall. If there are no _a_r_g_s, or only null arguments, eevvaall returns 0. eexxeecc [--ccll] [--aa _n_a_m_e] [_c_o_m_m_a_n_d [_a_r_g_u_m_e_n_t_s]] - If _c_o_m_m_a_n_d is specified, it replaces the shell. No new process - is created. The _a_r_g_u_m_e_n_t_s become the arguments to _c_o_m_m_a_n_d. If + If _c_o_m_m_a_n_d is specified, it replaces the shell. No new process + is created. The _a_r_g_u_m_e_n_t_s become the arguments to _c_o_m_m_a_n_d. If the --ll option is supplied, the shell places a dash at the begin- ning of the zeroth arg passed to _c_o_m_m_a_n_d. This is what _l_o_g_i_n(1) does. The --cc option causes _c_o_m_m_a_n_d to be executed with an empty - environment. If --aa is supplied, the shell passes _n_a_m_e as the - zeroth argument to the executed command. If _c_o_m_m_a_n_d cannot be - executed for some reason, a non-interactive shell exits, unless - the shell option eexxeeccffaaiill is enabled, in which case it returns - failure. An interactive shell returns failure if the file can- - not be executed. If _c_o_m_m_a_n_d is not specified, any redirections - take effect in the current shell, and the return status is 0. + environment. If --aa is supplied, the shell passes _n_a_m_e as the + zeroth argument to the executed command. If _c_o_m_m_a_n_d cannot be + executed for some reason, a non-interactive shell exits, unless + the shell option eexxeeccffaaiill is enabled, in which case it returns + failure. An interactive shell returns failure if the file can- + not be executed. If _c_o_m_m_a_n_d is not specified, any redirections + take effect in the current shell, and the return status is 0. If there is a redirection error, the return status is 1. eexxiitt [_n] - Cause the shell to exit with a status of _n. If _n is omitted, + Cause the shell to exit with a status of _n. If _n is omitted, the exit status is that of the last command executed. A trap on EEXXIITT is executed before the shell terminates. eexxppoorrtt [--ffnn] [_n_a_m_e[=_w_o_r_d]] ... eexxppoorrtt --pp - The supplied _n_a_m_e_s are marked for automatic export to the envi- - ronment of subsequently executed commands. If the --ff option is - given, the _n_a_m_e_s refer to functions. If no _n_a_m_e_s are given, or - if the --pp option is supplied, a list of all names that are - exported in this shell is printed. The --nn option causes the - export property to be removed from each _n_a_m_e. If a variable - name is followed by =_w_o_r_d, the value of the variable is set to - _w_o_r_d. eexxppoorrtt returns an exit status of 0 unless an invalid - option is encountered, one of the _n_a_m_e_s is not a valid shell + The supplied _n_a_m_e_s are marked for automatic export to the envi- + ronment of subsequently executed commands. If the --ff option is + given, the _n_a_m_e_s refer to functions. If no _n_a_m_e_s are given, or + if the --pp option is supplied, a list of all names that are + exported in this shell is printed. The --nn option causes the + export property to be removed from each _n_a_m_e. If a variable + name is followed by =_w_o_r_d, the value of the variable is set to + _w_o_r_d. eexxppoorrtt returns an exit status of 0 unless an invalid + option is encountered, one of the _n_a_m_e_s is not a valid shell variable name, or --ff is supplied with a _n_a_m_e that is not a func- tion. ffcc [--ee _e_n_a_m_e] [--nnllrr] [_f_i_r_s_t] [_l_a_s_t] ffcc --ss [_p_a_t=_r_e_p] [_c_m_d] - Fix Command. In the first form, a range of commands from _f_i_r_s_t - to _l_a_s_t is selected from the history list. _F_i_r_s_t and _l_a_s_t may - be specified as a string (to locate the last command beginning - with that string) or as a number (an index into the history + Fix Command. In the first form, a range of commands from _f_i_r_s_t + to _l_a_s_t is selected from the history list. _F_i_r_s_t and _l_a_s_t may + be specified as a string (to locate the last command beginning + with that string) or as a number (an index into the history list, where a negative number is used as an offset from the cur- rent command number). If _l_a_s_t is not specified it is set to the - current command for listing (so that ``fc -l -10'' prints the + current command for listing (so that ``fc -l -10'' prints the last 10 commands) and to _f_i_r_s_t otherwise. If _f_i_r_s_t is not spec- - ified it is set to the previous command for editing and -16 for + ified it is set to the previous command for editing and -16 for listing. - The --nn option suppresses the command numbers when listing. The - --rr option reverses the order of the commands. If the --ll option - is given, the commands are listed on standard output. Other- - wise, the editor given by _e_n_a_m_e is invoked on a file containing - those commands. If _e_n_a_m_e is not given, the value of the FFCCEEDDIITT - variable is used, and the value of EEDDIITTOORR if FFCCEEDDIITT is not set. - If neither variable is set, _v_i is used. When editing is com- + The --nn option suppresses the command numbers when listing. The + --rr option reverses the order of the commands. If the --ll option + is given, the commands are listed on standard output. Other- + wise, the editor given by _e_n_a_m_e is invoked on a file containing + those commands. If _e_n_a_m_e is not given, the value of the FFCCEEDDIITT + variable is used, and the value of EEDDIITTOORR if FFCCEEDDIITT is not set. + If neither variable is set, _v_i is used. When editing is com- plete, the edited commands are echoed and executed. - In the second form, _c_o_m_m_a_n_d is re-executed after each instance - of _p_a_t is replaced by _r_e_p. A useful alias to use with this is - ``r="fc -s"'', so that typing ``r cc'' runs the last command + In the second form, _c_o_m_m_a_n_d is re-executed after each instance + of _p_a_t is replaced by _r_e_p. A useful alias to use with this is + ``r="fc -s"'', so that typing ``r cc'' runs the last command beginning with ``cc'' and typing ``r'' re-executes the last com- mand. - If the first form is used, the return value is 0 unless an - invalid option is encountered or _f_i_r_s_t or _l_a_s_t specify history - lines out of range. If the --ee option is supplied, the return + If the first form is used, the return value is 0 unless an + invalid option is encountered or _f_i_r_s_t or _l_a_s_t specify history + lines out of range. If the --ee option is supplied, the return value is the value of the last command executed or failure if an error occurs with the temporary file of commands. If the second - form is used, the return status is that of the command re-exe- - cuted, unless _c_m_d does not specify a valid history line, in + form is used, the return status is that of the command re-exe- + cuted, unless _c_m_d does not specify a valid history line, in which case ffcc returns failure. ffgg [_j_o_b_s_p_e_c] - Resume _j_o_b_s_p_e_c in the foreground, and make it the current job. + Resume _j_o_b_s_p_e_c in the foreground, and make it the current job. If _j_o_b_s_p_e_c is not present, the shell's notion of the _c_u_r_r_e_n_t _j_o_b - is used. The return value is that of the command placed into - the foreground, or failure if run when job control is disabled + is used. The return value is that of the command placed into + the foreground, or failure if run when job control is disabled or, when run with job control enabled, if _j_o_b_s_p_e_c does not spec- - ify a valid job or _j_o_b_s_p_e_c specifies a job that was started + ify a valid job or _j_o_b_s_p_e_c specifies a job that was started without job control. ggeettooppttss _o_p_t_s_t_r_i_n_g _n_a_m_e [_a_r_g_s] - ggeettooppttss is used by shell procedures to parse positional parame- - ters. _o_p_t_s_t_r_i_n_g contains the option characters to be recog- - nized; if a character is followed by a colon, the option is - expected to have an argument, which should be separated from it - by white space. The colon and question mark characters may not - be used as option characters. Each time it is invoked, ggeettooppttss - places the next option in the shell variable _n_a_m_e, initializing + ggeettooppttss is used by shell procedures to parse positional parame- + ters. _o_p_t_s_t_r_i_n_g contains the option characters to be recog- + nized; if a character is followed by a colon, the option is + expected to have an argument, which should be separated from it + by white space. The colon and question mark characters may not + be used as option characters. Each time it is invoked, ggeettooppttss + places the next option in the shell variable _n_a_m_e, initializing _n_a_m_e if it does not exist, and the index of the next argument to be processed into the variable OOPPTTIINNDD. OOPPTTIINNDD is initialized to - 1 each time the shell or a shell script is invoked. When an - option requires an argument, ggeettooppttss places that argument into - the variable OOPPTTAARRGG. The shell does not reset OOPPTTIINNDD automati- - cally; it must be manually reset between multiple calls to + 1 each time the shell or a shell script is invoked. When an + option requires an argument, ggeettooppttss places that argument into + the variable OOPPTTAARRGG. The shell does not reset OOPPTTIINNDD automati- + cally; it must be manually reset between multiple calls to ggeettooppttss within the same shell invocation if a new set of parame- ters is to be used. - When the end of options is encountered, ggeettooppttss exits with a - return value greater than zero. OOPPTTIINNDD is set to the index of + When the end of options is encountered, ggeettooppttss exits with a + return value greater than zero. OOPPTTIINNDD is set to the index of the first non-option argument, and nnaammee is set to ?. - ggeettooppttss normally parses the positional parameters, but if more + ggeettooppttss normally parses the positional parameters, but if more arguments are given in _a_r_g_s, ggeettooppttss parses those instead. - ggeettooppttss can report errors in two ways. If the first character - of _o_p_t_s_t_r_i_n_g is a colon, _s_i_l_e_n_t error reporting is used. In - normal operation diagnostic messages are printed when invalid - options or missing option arguments are encountered. If the - variable OOPPTTEERRRR is set to 0, no error messages will be dis- + ggeettooppttss can report errors in two ways. If the first character + of _o_p_t_s_t_r_i_n_g is a colon, _s_i_l_e_n_t error reporting is used. In + normal operation diagnostic messages are printed when invalid + options or missing option arguments are encountered. If the + variable OOPPTTEERRRR is set to 0, no error messages will be dis- played, even if the first character of _o_p_t_s_t_r_i_n_g is not a colon. If an invalid option is seen, ggeettooppttss places ? into _n_a_m_e and, if - not silent, prints an error message and unsets OOPPTTAARRGG. If - ggeettooppttss is silent, the option character found is placed in + not silent, prints an error message and unsets OOPPTTAARRGG. If + ggeettooppttss is silent, the option character found is placed in OOPPTTAARRGG and no diagnostic message is printed. - If a required argument is not found, and ggeettooppttss is not silent, - a question mark (??) is placed in _n_a_m_e, OOPPTTAARRGG is unset, and a - diagnostic message is printed. If ggeettooppttss is silent, then a - colon (::) is placed in _n_a_m_e and OOPPTTAARRGG is set to the option + If a required argument is not found, and ggeettooppttss is not silent, + a question mark (??) is placed in _n_a_m_e, OOPPTTAARRGG is unset, and a + diagnostic message is printed. If ggeettooppttss is silent, then a + colon (::) is placed in _n_a_m_e and OOPPTTAARRGG is set to the option character found. - ggeettooppttss returns true if an option, specified or unspecified, is + ggeettooppttss returns true if an option, specified or unspecified, is found. It returns false if the end of options is encountered or an error occurs. hhaasshh [--llrr] [--pp _f_i_l_e_n_a_m_e] [--ddtt] [_n_a_m_e] - For each _n_a_m_e, the full file name of the command is determined + For each _n_a_m_e, the full file name of the command is determined by searching the directories in $$PPAATTHH and remembered. If the --pp option is supplied, no path search is performed, and _f_i_l_e_n_a_m_e is used as the full file name of the command. The --rr option causes - the shell to forget all remembered locations. The --dd option + the shell to forget all remembered locations. The --dd option causes the shell to forget the remembered location of each _n_a_m_e. - If the --tt option is supplied, the full pathname to which each - _n_a_m_e corresponds is printed. If multiple _n_a_m_e arguments are - supplied with --tt, the _n_a_m_e is printed before the hashed full + If the --tt option is supplied, the full pathname to which each + _n_a_m_e corresponds is printed. If multiple _n_a_m_e arguments are + supplied with --tt, the _n_a_m_e is printed before the hashed full pathname. The --ll option causes output to be displayed in a for- - mat that may be reused as input. If no arguments are given, or + mat that may be reused as input. If no arguments are given, or if only --ll is supplied, information about remembered commands is - printed. The return status is true unless a _n_a_m_e is not found + printed. The return status is true unless a _n_a_m_e is not found or an invalid option is supplied. hheellpp [--ss] [_p_a_t_t_e_r_n] - Display helpful information about builtin commands. If _p_a_t_t_e_r_n - is specified, hheellpp gives detailed help on all commands matching - _p_a_t_t_e_r_n; otherwise help for all the builtins and shell control - structures is printed. The --ss option restricts the information - displayed to a short usage synopsis. The return status is 0 + Display helpful information about builtin commands. If _p_a_t_t_e_r_n + is specified, hheellpp gives detailed help on all commands matching + _p_a_t_t_e_r_n; otherwise help for all the builtins and shell control + structures is printed. The --ss option restricts the information + displayed to a short usage synopsis. The return status is 0 unless no command matches _p_a_t_t_e_r_n. hhiissttoorryy [[_n]] @@ -3867,41 +3874,41 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS hhiissttoorryy --ss _a_r_g [_a_r_g _._._.] With no options, display the command history list with line num- bers. Lines listed with a ** have been modified. An argument of - _n lists only the last _n lines. If the shell variable HHIISSTTTTIIMMEE-- - FFOORRMMAATT is set and not null, it is used as a format string for - _s_t_r_f_t_i_m_e(3) to display the time stamp associated with each dis- - played history entry. No intervening blank is printed between - the formatted time stamp and the history line. If _f_i_l_e_n_a_m_e is - supplied, it is used as the name of the history file; if not, - the value of HHIISSTTFFIILLEE is used. Options, if supplied, have the + _n lists only the last _n lines. If the shell variable HHIISSTTTTIIMMEE-- + FFOORRMMAATT is set and not null, it is used as a format string for + _s_t_r_f_t_i_m_e(3) to display the time stamp associated with each dis- + played history entry. No intervening blank is printed between + the formatted time stamp and the history line. If _f_i_l_e_n_a_m_e is + supplied, it is used as the name of the history file; if not, + the value of HHIISSTTFFIILLEE is used. Options, if supplied, have the following meanings: --cc Clear the history list by deleting all the entries. --dd _o_f_f_s_e_t Delete the history entry at position _o_f_f_s_e_t. - --aa Append the ``new'' history lines (history lines entered - since the beginning of the current bbaasshh session) to the + --aa Append the ``new'' history lines (history lines entered + since the beginning of the current bbaasshh session) to the history file. - --nn Read the history lines not already read from the history - file into the current history list. These are lines - appended to the history file since the beginning of the + --nn Read the history lines not already read from the history + file into the current history list. These are lines + appended to the history file since the beginning of the current bbaasshh session. --rr Read the contents of the history file and use them as the current history. - --ww Write the current history to the history file, overwrit- + --ww Write the current history to the history file, overwrit- ing the history file's contents. - --pp Perform history substitution on the following _a_r_g_s and - display the result on the standard output. Does not - store the results in the history list. Each _a_r_g must be + --pp Perform history substitution on the following _a_r_g_s and + display the result on the standard output. Does not + store the results in the history list. Each _a_r_g must be quoted to disable normal history expansion. - --ss Store the _a_r_g_s in the history list as a single entry. - The last command in the history list is removed before + --ss Store the _a_r_g_s in the history list as a single entry. + The last command in the history list is removed before the _a_r_g_s are added. If the HHIISSTTTTIIMMEEFFOORRMMAATT is set, the time stamp information associ- - ated with each history entry is written to the history file. - The return value is 0 unless an invalid option is encountered, - an error occurs while reading or writing the history file, an - invalid _o_f_f_s_e_t is supplied as an argument to --dd, or the history + ated with each history entry is written to the history file. + The return value is 0 unless an invalid option is encountered, + an error occurs while reading or writing the history file, an + invalid _o_f_f_s_e_t is supplied as an argument to --dd, or the history expansion supplied as an argument to --pp fails. jjoobbss [--llnnpprrss] [ _j_o_b_s_p_e_c ... ] @@ -3909,145 +3916,145 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS The first form lists the active jobs. The options have the fol- lowing meanings: --ll List process IDs in addition to the normal information. - --pp List only the process ID of the job's process group + --pp List only the process ID of the job's process group leader. - --nn Display information only about jobs that have changed - status since the user was last notified of their status. + --nn Display information only about jobs that have changed + status since the user was last notified of their status. --rr Restrict output to running jobs. --ss Restrict output to stopped jobs. - If _j_o_b_s_p_e_c is given, output is restricted to information about - that job. The return status is 0 unless an invalid option is + If _j_o_b_s_p_e_c is given, output is restricted to information about + that job. The return status is 0 unless an invalid option is encountered or an invalid _j_o_b_s_p_e_c is supplied. If the --xx option is supplied, jjoobbss replaces any _j_o_b_s_p_e_c found in - _c_o_m_m_a_n_d or _a_r_g_s with the corresponding process group ID, and + _c_o_m_m_a_n_d or _a_r_g_s with the corresponding process group ID, and executes _c_o_m_m_a_n_d passing it _a_r_g_s, returning its exit status. kkiillll [--ss _s_i_g_s_p_e_c | --nn _s_i_g_n_u_m | --_s_i_g_s_p_e_c] [_p_i_d | _j_o_b_s_p_e_c] ... kkiillll --ll [_s_i_g_s_p_e_c | _e_x_i_t___s_t_a_t_u_s] - Send the signal named by _s_i_g_s_p_e_c or _s_i_g_n_u_m to the processes - named by _p_i_d or _j_o_b_s_p_e_c. _s_i_g_s_p_e_c is either a signal name such - as SSIIGGKKIILLLL or a signal number; _s_i_g_n_u_m is a signal number. If - _s_i_g_s_p_e_c is a signal name, the name may be given with or without - the SSIIGG prefix. If _s_i_g_s_p_e_c is not present, then SSIIGGTTEERRMM is - assumed. An argument of --ll lists the signal names. If any - arguments are supplied when --ll is given, the names of the sig- - nals corresponding to the arguments are listed, and the return - status is 0. The _e_x_i_t___s_t_a_t_u_s argument to --ll is a number speci- - fying either a signal number or the exit status of a process - terminated by a signal. kkiillll returns true if at least one sig- - nal was successfully sent, or false if an error occurs or an + Send the signal named by _s_i_g_s_p_e_c or _s_i_g_n_u_m to the processes + named by _p_i_d or _j_o_b_s_p_e_c. _s_i_g_s_p_e_c is either a signal name such + as SSIIGGKKIILLLL or a signal number; _s_i_g_n_u_m is a signal number. If + _s_i_g_s_p_e_c is a signal name, the name may be given with or without + the SSIIGG prefix. If _s_i_g_s_p_e_c is not present, then SSIIGGTTEERRMM is + assumed. An argument of --ll lists the signal names. If any + arguments are supplied when --ll is given, the names of the sig- + nals corresponding to the arguments are listed, and the return + status is 0. The _e_x_i_t___s_t_a_t_u_s argument to --ll is a number speci- + fying either a signal number or the exit status of a process + terminated by a signal. kkiillll returns true if at least one sig- + nal was successfully sent, or false if an error occurs or an invalid option is encountered. lleett _a_r_g [_a_r_g ...] Each _a_r_g is an arithmetic expression to be evaluated (see AARRIITTHH-- - MMEETTIICC EEVVAALLUUAATTIIOONN). If the last _a_r_g evaluates to 0, lleett returns + MMEETTIICC EEVVAALLUUAATTIIOONN). If the last _a_r_g evaluates to 0, lleett returns 1; 0 is returned otherwise. llooccaall [_o_p_t_i_o_n] [_n_a_m_e[=_v_a_l_u_e] ...] - For each argument, a local variable named _n_a_m_e is created, and - assigned _v_a_l_u_e. The _o_p_t_i_o_n can be any of the options accepted + For each argument, a local variable named _n_a_m_e is created, and + assigned _v_a_l_u_e. The _o_p_t_i_o_n can be any of the options accepted by ddeeccllaarree. When llooccaall is used within a function, it causes the - variable _n_a_m_e to have a visible scope restricted to that func- + variable _n_a_m_e to have a visible scope restricted to that func- tion and its children. With no operands, llooccaall writes a list of - local variables to the standard output. It is an error to use + local variables to the standard output. It is an error to use llooccaall when not within a function. The return status is 0 unless - llooccaall is used outside a function, an invalid _n_a_m_e is supplied, + llooccaall is used outside a function, an invalid _n_a_m_e is supplied, or _n_a_m_e is a readonly variable. llooggoouutt Exit a login shell. ppooppdd [-nn] [+_n] [-_n] - Removes entries from the directory stack. With no arguments, - removes the top directory from the stack, and performs a ccdd to + Removes entries from the directory stack. With no arguments, + removes the top directory from the stack, and performs a ccdd to the new top directory. Arguments, if supplied, have the follow- ing meanings: - ++_n Removes the _nth entry counting from the left of the list - shown by ddiirrss, starting with zero. For example: ``popd + ++_n Removes the _nth entry counting from the left of the list + shown by ddiirrss, starting with zero. For example: ``popd +0'' removes the first directory, ``popd +1'' the second. --_n Removes the _nth entry counting from the right of the list - shown by ddiirrss, starting with zero. For example: ``popd - -0'' removes the last directory, ``popd -1'' the next to + shown by ddiirrss, starting with zero. For example: ``popd + -0'' removes the last directory, ``popd -1'' the next to last. - --nn Suppresses the normal change of directory when removing - directories from the stack, so that only the stack is + --nn Suppresses the normal change of directory when removing + directories from the stack, so that only the stack is manipulated. - If the ppooppdd command is successful, a ddiirrss is performed as well, - and the return status is 0. ppooppdd returns false if an invalid + If the ppooppdd command is successful, a ddiirrss is performed as well, + and the return status is 0. ppooppdd returns false if an invalid option is encountered, the directory stack is empty, a non-exis- tent directory stack entry is specified, or the directory change fails. pprriinnttff _f_o_r_m_a_t [_a_r_g_u_m_e_n_t_s] - Write the formatted _a_r_g_u_m_e_n_t_s to the standard output under the - control of the _f_o_r_m_a_t. The _f_o_r_m_a_t is a character string which - contains three types of objects: plain characters, which are - simply copied to standard output, character escape sequences, - which are converted and copied to the standard output, and for- - mat specifications, each of which causes printing of the next + Write the formatted _a_r_g_u_m_e_n_t_s to the standard output under the + control of the _f_o_r_m_a_t. The _f_o_r_m_a_t is a character string which + contains three types of objects: plain characters, which are + simply copied to standard output, character escape sequences, + which are converted and copied to the standard output, and for- + mat specifications, each of which causes printing of the next successive _a_r_g_u_m_e_n_t. In addition to the standard _p_r_i_n_t_f(1) for- - mats, %%bb causes pprriinnttff to expand backslash escape sequences in - the corresponding _a_r_g_u_m_e_n_t (except that \\cc terminates output, + mats, %%bb causes pprriinnttff to expand backslash escape sequences in + the corresponding _a_r_g_u_m_e_n_t (except that \\cc terminates output, backslashes in \\'', \\"", and \\?? are not removed, and octal escapes - beginning with \\00 may contain up to four digits), and %%qq causes + beginning with \\00 may contain up to four digits), and %%qq causes pprriinnttff to output the corresponding _a_r_g_u_m_e_n_t in a format that can be reused as shell input. - The _f_o_r_m_a_t is reused as necessary to consume all of the _a_r_g_u_- + The _f_o_r_m_a_t is reused as necessary to consume all of the _a_r_g_u_- _m_e_n_t_s. If the _f_o_r_m_a_t requires more _a_r_g_u_m_e_n_t_s than are supplied, - the extra format specifications behave as if a zero value or - null string, as appropriate, had been supplied. The return + the extra format specifications behave as if a zero value or + null string, as appropriate, had been supplied. The return value is zero on success, non-zero on failure. ppuusshhdd [--nn] [_d_i_r] ppuusshhdd [--nn] [+_n] [-_n] - Adds a directory to the top of the directory stack, or rotates - the stack, making the new top of the stack the current working + Adds a directory to the top of the directory stack, or rotates + the stack, making the new top of the stack the current working directory. With no arguments, exchanges the top two directories - and returns 0, unless the directory stack is empty. Arguments, + and returns 0, unless the directory stack is empty. Arguments, if supplied, have the following meanings: - ++_n Rotates the stack so that the _nth directory (counting - from the left of the list shown by ddiirrss, starting with + ++_n Rotates the stack so that the _nth directory (counting + from the left of the list shown by ddiirrss, starting with zero) is at the top. - --_n Rotates the stack so that the _nth directory (counting - from the right of the list shown by ddiirrss, starting with + --_n Rotates the stack so that the _nth directory (counting + from the right of the list shown by ddiirrss, starting with zero) is at the top. - --nn Suppresses the normal change of directory when adding - directories to the stack, so that only the stack is + --nn Suppresses the normal change of directory when adding + directories to the stack, so that only the stack is manipulated. _d_i_r Adds _d_i_r to the directory stack at the top, making it the new current working directory. If the ppuusshhdd command is successful, a ddiirrss is performed as well. - If the first form is used, ppuusshhdd returns 0 unless the cd to _d_i_r - fails. With the second form, ppuusshhdd returns 0 unless the direc- - tory stack is empty, a non-existent directory stack element is - specified, or the directory change to the specified new current + If the first form is used, ppuusshhdd returns 0 unless the cd to _d_i_r + fails. With the second form, ppuusshhdd returns 0 unless the direc- + tory stack is empty, a non-existent directory stack element is + specified, or the directory change to the specified new current directory fails. ppwwdd [--LLPP] - Print the absolute pathname of the current working directory. + Print the absolute pathname of the current working directory. The pathname printed contains no symbolic links if the --PP option is supplied or the --oo pphhyyssiiccaall option to the sseett builtin command - is enabled. If the --LL option is used, the pathname printed may - contain symbolic links. The return status is 0 unless an error - occurs while reading the name of the current directory or an + is enabled. If the --LL option is used, the pathname printed may + contain symbolic links. The return status is 0 unless an error + occurs while reading the name of the current directory or an invalid option is supplied. rreeaadd [--eerrss] [--uu _f_d] [--tt _t_i_m_e_o_u_t] [--aa _a_n_a_m_e] [--pp _p_r_o_m_p_t] [--nn _n_c_h_a_r_s] [--dd _d_e_l_i_m] [_n_a_m_e ...] - One line is read from the standard input, or from the file - descriptor _f_d supplied as an argument to the --uu option, and the + One line is read from the standard input, or from the file + descriptor _f_d supplied as an argument to the --uu option, and the first word is assigned to the first _n_a_m_e, the second word to the - second _n_a_m_e, and so on, with leftover words and their interven- - ing separators assigned to the last _n_a_m_e. If there are fewer + second _n_a_m_e, and so on, with leftover words and their interven- + ing separators assigned to the last _n_a_m_e. If there are fewer words read from the input stream than names, the remaining names - are assigned empty values. The characters in IIFFSS are used to - split the line into words. The backslash character (\\) may be - used to remove any special meaning for the next character read - and for line continuation. Options, if supplied, have the fol- + are assigned empty values. The characters in IIFFSS are used to + split the line into words. The backslash character (\\) may be + used to remove any special meaning for the next character read + and for line continuation. Options, if supplied, have the fol- lowing meanings: --aa _a_n_a_m_e The words are assigned to sequential indices of the array @@ -4055,98 +4062,98 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS new values are assigned. Other _n_a_m_e arguments are ignored. --dd _d_e_l_i_m - The first character of _d_e_l_i_m is used to terminate the + The first character of _d_e_l_i_m is used to terminate the input line, rather than newline. --ee If the standard input is coming from a terminal, rreeaaddlliinnee (see RREEAADDLLIINNEE above) is used to obtain the line. --nn _n_c_h_a_r_s - rreeaadd returns after reading _n_c_h_a_r_s characters rather than + rreeaadd returns after reading _n_c_h_a_r_s characters rather than waiting for a complete line of input. --pp _p_r_o_m_p_t Display _p_r_o_m_p_t on standard error, without a trailing new- line, before attempting to read any input. The prompt is displayed only if input is coming from a terminal. --rr Backslash does not act as an escape character. The back- - slash is considered to be part of the line. In particu- - lar, a backslash-newline pair may not be used as a line + slash is considered to be part of the line. In particu- + lar, a backslash-newline pair may not be used as a line continuation. --ss Silent mode. If input is coming from a terminal, charac- ters are not echoed. --tt _t_i_m_e_o_u_t - Cause rreeaadd to time out and return failure if a complete - line of input is not read within _t_i_m_e_o_u_t seconds. This - option has no effect if rreeaadd is not reading input from + Cause rreeaadd to time out and return failure if a complete + line of input is not read within _t_i_m_e_o_u_t seconds. This + option has no effect if rreeaadd is not reading input from the terminal or a pipe. --uu _f_d Read input from file descriptor _f_d. If no _n_a_m_e_s are supplied, the line read is assigned to the vari- - able RREEPPLLYY. The return code is zero, unless end-of-file is - encountered, rreeaadd times out, or an invalid file descriptor is + able RREEPPLLYY. The return code is zero, unless end-of-file is + encountered, rreeaadd times out, or an invalid file descriptor is supplied as the argument to --uu. rreeaaddoonnllyy [--aappff] [_n_a_m_e[=_w_o_r_d] ...] - The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s - may not be changed by subsequent assignment. If the --ff option - is supplied, the functions corresponding to the _n_a_m_e_s are so + The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s + may not be changed by subsequent assignment. If the --ff option + is supplied, the functions corresponding to the _n_a_m_e_s are so marked. The --aa option restricts the variables to arrays. If no - _n_a_m_e arguments are given, or if the --pp option is supplied, a - list of all readonly names is printed. The --pp option causes - output to be displayed in a format that may be reused as input. - If a variable name is followed by =_w_o_r_d, the value of the vari- - able is set to _w_o_r_d. The return status is 0 unless an invalid - option is encountered, one of the _n_a_m_e_s is not a valid shell + _n_a_m_e arguments are given, or if the --pp option is supplied, a + list of all readonly names is printed. The --pp option causes + output to be displayed in a format that may be reused as input. + If a variable name is followed by =_w_o_r_d, the value of the vari- + able is set to _w_o_r_d. The return status is 0 unless an invalid + option is encountered, one of the _n_a_m_e_s is not a valid shell variable name, or --ff is supplied with a _n_a_m_e that is not a func- tion. rreettuurrnn [_n] - Causes a function to exit with the return value specified by _n. - If _n is omitted, the return status is that of the last command - executed in the function body. If used outside a function, but - during execution of a script by the .. (ssoouurrccee) command, it + Causes a function to exit with the return value specified by _n. + If _n is omitted, the return status is that of the last command + executed in the function body. If used outside a function, but + during execution of a script by the .. (ssoouurrccee) command, it causes the shell to stop executing that script and return either - _n or the exit status of the last command executed within the - script as the exit status of the script. If used outside a - function and not during execution of a script by .., the return + _n or the exit status of the last command executed within the + script as the exit status of the script. If used outside a + function and not during execution of a script by .., the return status is false. Any command associated with the RREETTUURRNN trap is - executed before execution resumes after the function or script. + executed before execution resumes after the function or script. sseett [----aabbeeffhhkkmmnnppttuuvvxxBBCCHHPP] [--oo _o_p_t_i_o_n] [_a_r_g ...] - Without options, the name and value of each shell variable are - displayed in a format that can be reused as input. The output - is sorted according to the current locale. When options are - specified, they set or unset shell attributes. Any arguments - remaining after the options are processed are treated as values + Without options, the name and value of each shell variable are + displayed in a format that can be reused as input. The output + is sorted according to the current locale. When options are + specified, they set or unset shell attributes. Any arguments + remaining after the options are processed are treated as values for the positional parameters and are assigned, in order, to $$11, - $$22, ...... $$_n. Options, if specified, have the following mean- + $$22, ...... $$_n. Options, if specified, have the following mean- ings: - --aa Automatically mark variables and functions which are - modified or created for export to the environment of + --aa Automatically mark variables and functions which are + modified or created for export to the environment of subsequent commands. - --bb Report the status of terminated background jobs immedi- + --bb Report the status of terminated background jobs immedi- ately, rather than before the next primary prompt. This is effective only when job control is enabled. - --ee Exit immediately if a _s_i_m_p_l_e _c_o_m_m_a_n_d (see SSHHEELLLL GGRRAAMMMMAARR + --ee Exit immediately if a _s_i_m_p_l_e _c_o_m_m_a_n_d (see SSHHEELLLL GGRRAAMMMMAARR above) exits with a non-zero status. The shell does not - exit if the command that fails is part of the command - list immediately following a wwhhiillee or uunnttiill keyword, - part of the test in an _i_f statement, part of a &&&& or |||| + exit if the command that fails is part of the command + list immediately following a wwhhiillee or uunnttiill keyword, + part of the test in an _i_f statement, part of a &&&& or |||| list, or if the command's return value is being inverted - via !!. A trap on EERRRR, if set, is executed before the + via !!. A trap on EERRRR, if set, is executed before the shell exits. --ff Disable pathname expansion. - --hh Remember the location of commands as they are looked up + --hh Remember the location of commands as they are looked up for execution. This is enabled by default. - --kk All arguments in the form of assignment statements are - placed in the environment for a command, not just those + --kk All arguments in the form of assignment statements are + placed in the environment for a command, not just those that precede the command name. - --mm Monitor mode. Job control is enabled. This option is - on by default for interactive shells on systems that - support it (see JJOOBB CCOONNTTRROOLL above). Background pro- - cesses run in a separate process group and a line con- - taining their exit status is printed upon their comple- + --mm Monitor mode. Job control is enabled. This option is + on by default for interactive shells on systems that + support it (see JJOOBB CCOONNTTRROOLL above). Background pro- + cesses run in a separate process group and a line con- + taining their exit status is printed upon their comple- tion. --nn Read commands but do not execute them. This may be used - to check a shell script for syntax errors. This is + to check a shell script for syntax errors. This is ignored by interactive shells. --oo _o_p_t_i_o_n_-_n_a_m_e The _o_p_t_i_o_n_-_n_a_m_e can be one of the following: @@ -4154,7 +4161,7 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS Same as --aa. bbrraacceeeexxppaanndd Same as --BB. - eemmaaccss Use an emacs-style command line editing inter- + eemmaaccss Use an emacs-style command line editing inter- face. This is enabled by default when the shell is interactive, unless the shell is started with the ----nnooeeddiittiinngg option. @@ -4170,8 +4177,8 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS HHIISSTTOORRYY. This option is on by default in inter- active shells. iiggnnoorreeeeooff - The effect is as if the shell command - ``IGNOREEOF=10'' had been executed (see SShheellll + The effect is as if the shell command + ``IGNOREEOF=10'' had been executed (see SShheellll VVaarriiaabblleess above). kkeeyywwoorrdd Same as --kk. mmoonniittoorr Same as --mm. @@ -4185,12 +4192,12 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS pphhyyssiiccaall Same as --PP. ppiippeeffaaiill - If set, the return value of a pipeline is the - value of the last (rightmost) command to exit - with a non-zero status, or zero if all commands - in the pipeline exit successfully. This option + If set, the return value of a pipeline is the + value of the last (rightmost) command to exit + with a non-zero status, or zero if all commands + in the pipeline exit successfully. This option is disabled by default. - ppoossiixx Change the behavior of bbaasshh where the default + ppoossiixx Change the behavior of bbaasshh where the default operation differs from the POSIX 1003.2 standard to match the standard (_`_p_o_s_i_x _m_o_d_e). pprriivviilleeggeedd @@ -4199,224 +4206,224 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS vvii Use a vi-style command line editing interface. xxttrraaccee Same as --xx. If --oo is supplied with no _o_p_t_i_o_n_-_n_a_m_e, the values of the - current options are printed. If ++oo is supplied with no - _o_p_t_i_o_n_-_n_a_m_e, a series of sseett commands to recreate the - current option settings is displayed on the standard + current options are printed. If ++oo is supplied with no + _o_p_t_i_o_n_-_n_a_m_e, a series of sseett commands to recreate the + current option settings is displayed on the standard output. - --pp Turn on _p_r_i_v_i_l_e_g_e_d mode. In this mode, the $$EENNVV and - $$BBAASSHH__EENNVV files are not processed, shell functions are - not inherited from the environment, and the SSHHEELLLLOOPPTTSS - variable, if it appears in the environment, is ignored. - If the shell is started with the effective user (group) - id not equal to the real user (group) id, and the --pp - option is not supplied, these actions are taken and the + --pp Turn on _p_r_i_v_i_l_e_g_e_d mode. In this mode, the $$EENNVV and + $$BBAASSHH__EENNVV files are not processed, shell functions are + not inherited from the environment, and the SSHHEELLLLOOPPTTSS + variable, if it appears in the environment, is ignored. + If the shell is started with the effective user (group) + id not equal to the real user (group) id, and the --pp + option is not supplied, these actions are taken and the effective user id is set to the real user id. If the --pp - option is supplied at startup, the effective user id is + option is supplied at startup, the effective user id is not reset. Turning this option off causes the effective - user and group ids to be set to the real user and group + user and group ids to be set to the real user and group ids. --tt Exit after reading and executing one command. --uu Treat unset variables as an error when performing param- - eter expansion. If expansion is attempted on an unset + eter expansion. If expansion is attempted on an unset variable, the shell prints an error message, and, if not interactive, exits with a non-zero status. --vv Print shell input lines as they are read. - --xx After expanding each _s_i_m_p_l_e _c_o_m_m_a_n_d, ffoorr command, ccaassee + --xx After expanding each _s_i_m_p_l_e _c_o_m_m_a_n_d, ffoorr command, ccaassee command, sseelleecctt command, or arithmetic ffoorr command, dis- - play the expanded value of PPSS44, followed by the command + play the expanded value of PPSS44, followed by the command and its expanded arguments or associated word list. - --BB The shell performs brace expansion (see BBrraaccee EExxppaannssiioonn + --BB The shell performs brace expansion (see BBrraaccee EExxppaannssiioonn above). This is on by default. - --CC If set, bbaasshh does not overwrite an existing file with - the >>, >>&&, and <<>> redirection operators. This may be + --CC If set, bbaasshh does not overwrite an existing file with + the >>, >>&&, and <<>> redirection operators. This may be overridden when creating output files by using the redi- rection operator >>|| instead of >>. --EE If set, any trap on EERRRR is inherited by shell functions, - command substitutions, and commands executed in a sub- - shell environment. The EERRRR trap is normally not inher- + command substitutions, and commands executed in a sub- + shell environment. The EERRRR trap is normally not inher- ited in such cases. --HH Enable !! style history substitution. This option is on by default when the shell is interactive. - --PP If set, the shell does not follow symbolic links when - executing commands such as ccdd that change the current + --PP If set, the shell does not follow symbolic links when + executing commands such as ccdd that change the current working directory. It uses the physical directory structure instead. By default, bbaasshh follows the logical - chain of directories when performing commands which + chain of directories when performing commands which change the current directory. - --TT If set, any trap on DDEEBBUUGG is inherited by shell func- + --TT If set, any trap on DDEEBBUUGG is inherited by shell func- tions, command substitutions, and commands executed in a - subshell environment. The DDEEBBUUGG trap is normally not + subshell environment. The DDEEBBUUGG trap is normally not inherited in such cases. - ---- If no arguments follow this option, then the positional + ---- If no arguments follow this option, then the positional parameters are unset. Otherwise, the positional parame- - ters are set to the _a_r_gs, even if some of them begin + ters are set to the _a_r_gs, even if some of them begin with a --. - -- Signal the end of options, cause all remaining _a_r_gs to + -- Signal the end of options, cause all remaining _a_r_gs to be assigned to the positional parameters. The --xx and --vv options are turned off. If there are no _a_r_gs, the posi- tional parameters remain unchanged. - The options are off by default unless otherwise noted. Using + - rather than - causes these options to be turned off. The - options can also be specified as arguments to an invocation of - the shell. The current set of options may be found in $$--. The + The options are off by default unless otherwise noted. Using + + rather than - causes these options to be turned off. The + options can also be specified as arguments to an invocation of + the shell. The current set of options may be found in $$--. The return status is always true unless an invalid option is encoun- tered. sshhiifftt [_n] - The positional parameters from _n+1 ... are renamed to $$11 ........ - Parameters represented by the numbers $$## down to $$##-_n+1 are - unset. _n must be a non-negative number less than or equal to - $$##. If _n is 0, no parameters are changed. If _n is not given, - it is assumed to be 1. If _n is greater than $$##, the positional - parameters are not changed. The return status is greater than + The positional parameters from _n+1 ... are renamed to $$11 ........ + Parameters represented by the numbers $$## down to $$##-_n+1 are + unset. _n must be a non-negative number less than or equal to + $$##. If _n is 0, no parameters are changed. If _n is not given, + it is assumed to be 1. If _n is greater than $$##, the positional + parameters are not changed. The return status is greater than zero if _n is greater than $$## or less than zero; otherwise 0. sshhoopptt [--ppqqssuu] [--oo] [_o_p_t_n_a_m_e ...] Toggle the values of variables controlling optional shell behav- ior. With no options, or with the --pp option, a list of all set- table options is displayed, with an indication of whether or not - each is set. The --pp option causes output to be displayed in a - form that may be reused as input. Other options have the fol- + each is set. The --pp option causes output to be displayed in a + form that may be reused as input. Other options have the fol- lowing meanings: --ss Enable (set) each _o_p_t_n_a_m_e. --uu Disable (unset) each _o_p_t_n_a_m_e. - --qq Suppresses normal output (quiet mode); the return status + --qq Suppresses normal output (quiet mode); the return status indicates whether the _o_p_t_n_a_m_e is set or unset. If multi- - ple _o_p_t_n_a_m_e arguments are given with --qq, the return sta- - tus is zero if all _o_p_t_n_a_m_e_s are enabled; non-zero other- + ple _o_p_t_n_a_m_e arguments are given with --qq, the return sta- + tus is zero if all _o_p_t_n_a_m_e_s are enabled; non-zero other- wise. - --oo Restricts the values of _o_p_t_n_a_m_e to be those defined for + --oo Restricts the values of _o_p_t_n_a_m_e to be those defined for the --oo option to the sseett builtin. - If either --ss or --uu is used with no _o_p_t_n_a_m_e arguments, the dis- + If either --ss or --uu is used with no _o_p_t_n_a_m_e arguments, the dis- play is limited to those options which are set or unset, respec- - tively. Unless otherwise noted, the sshhoopptt options are disabled + tively. Unless otherwise noted, the sshhoopptt options are disabled (unset) by default. - The return status when listing options is zero if all _o_p_t_n_a_m_e_s - are enabled, non-zero otherwise. When setting or unsetting - options, the return status is zero unless an _o_p_t_n_a_m_e is not a + The return status when listing options is zero if all _o_p_t_n_a_m_e_s + are enabled, non-zero otherwise. When setting or unsetting + options, the return status is zero unless an _o_p_t_n_a_m_e is not a valid shell option. The list of sshhoopptt options is: ccddaabbllee__vvaarrss - If set, an argument to the ccdd builtin command that is - not a directory is assumed to be the name of a variable + If set, an argument to the ccdd builtin command that is + not a directory is assumed to be the name of a variable whose value is the directory to change to. ccddssppeellll If set, minor errors in the spelling of a directory com- - ponent in a ccdd command will be corrected. The errors + ponent in a ccdd command will be corrected. The errors checked for are transposed characters, a missing charac- - ter, and one character too many. If a correction is - found, the corrected file name is printed, and the com- - mand proceeds. This option is only used by interactive + ter, and one character too many. If a correction is + found, the corrected file name is printed, and the com- + mand proceeds. This option is only used by interactive shells. cchheecckkhhaasshh If set, bbaasshh checks that a command found in the hash ta- - ble exists before trying to execute it. If a hashed - command no longer exists, a normal path search is per- + ble exists before trying to execute it. If a hashed + command no longer exists, a normal path search is per- formed. cchheecckkwwiinnssiizzee - If set, bbaasshh checks the window size after each command - and, if necessary, updates the values of LLIINNEESS and + If set, bbaasshh checks the window size after each command + and, if necessary, updates the values of LLIINNEESS and CCOOLLUUMMNNSS. - ccmmddhhiisstt If set, bbaasshh attempts to save all lines of a multiple- - line command in the same history entry. This allows + ccmmddhhiisstt If set, bbaasshh attempts to save all lines of a multiple- + line command in the same history entry. This allows easy re-editing of multi-line commands. - ddoottgglloobb If set, bbaasshh includes filenames beginning with a `.' in + ddoottgglloobb If set, bbaasshh includes filenames beginning with a `.' in the results of pathname expansion. eexxeeccffaaiill If set, a non-interactive shell will not exit if it can- - not execute the file specified as an argument to the - eexxeecc builtin command. An interactive shell does not + not execute the file specified as an argument to the + eexxeecc builtin command. An interactive shell does not exit if eexxeecc fails. eexxppaanndd__aalliiaasseess - If set, aliases are expanded as described above under + If set, aliases are expanded as described above under AALLIIAASSEESS. This option is enabled by default for interac- tive shells. eexxttddeebbuugg - If set, behavior intended for use by debuggers is + If set, behavior intended for use by debuggers is enabled: 11.. The --FF option to the ddeeccllaarree builtin displays the source file name and line number corresponding to each function name supplied as an argument. - 22.. If the command run by the DDEEBBUUGG trap returns a - non-zero value, the next command is skipped and + 22.. If the command run by the DDEEBBUUGG trap returns a + non-zero value, the next command is skipped and not executed. - 33.. If the command run by the DDEEBBUUGG trap returns a - value of 2, and the shell is executing in a sub- - routine (a shell function or a shell script exe- - cuted by the .. or ssoouurrccee builtins), a call to + 33.. If the command run by the DDEEBBUUGG trap returns a + value of 2, and the shell is executing in a sub- + routine (a shell function or a shell script exe- + cuted by the .. or ssoouurrccee builtins), a call to rreettuurrnn is simulated. eexxttgglloobb If set, the extended pattern matching features described above under PPaatthhnnaammee EExxppaannssiioonn are enabled. eexxttqquuoottee - If set, $$'_s_t_r_i_n_g' and $$"_s_t_r_i_n_g" quoting is performed - within $${{_p_a_r_a_m_e_t_e_r}} expansions enclosed in double + If set, $$'_s_t_r_i_n_g' and $$"_s_t_r_i_n_g" quoting is performed + within $${{_p_a_r_a_m_e_t_e_r}} expansions enclosed in double quotes. This option is enabled by default. ffaaiillgglloobb - If set, patterns which fail to match filenames during + If set, patterns which fail to match filenames during pathname expansion result in an expansion error. ffoorrccee__ffiiggnnoorree - If set, the suffixes specified by the FFIIGGNNOORREE shell - variable cause words to be ignored when performing word + If set, the suffixes specified by the FFIIGGNNOORREE shell + variable cause words to be ignored when performing word completion even if the ignored words are the only possi- ble completions. See SSHHEELLLL VVAARRIIAABBLLEESS above for a - description of FFIIGGNNOORREE. This option is enabled by + description of FFIIGGNNOORREE. This option is enabled by default. ggnnuu__eerrrrffmmtt If set, shell error messages are written in the standard GNU error message format. hhiissttaappppeenndd - If set, the history list is appended to the file named - by the value of the HHIISSTTFFIILLEE variable when the shell + If set, the history list is appended to the file named + by the value of the HHIISSTTFFIILLEE variable when the shell exits, rather than overwriting the file. hhiissttrreeeeddiitt - If set, and rreeaaddlliinnee is being used, a user is given the + If set, and rreeaaddlliinnee is being used, a user is given the opportunity to re-edit a failed history substitution. hhiissttvveerriiffyy - If set, and rreeaaddlliinnee is being used, the results of his- - tory substitution are not immediately passed to the - shell parser. Instead, the resulting line is loaded + If set, and rreeaaddlliinnee is being used, the results of his- + tory substitution are not immediately passed to the + shell parser. Instead, the resulting line is loaded into the rreeaaddlliinnee editing buffer, allowing further modi- fication. hhoossttccoommpplleettee If set, and rreeaaddlliinnee is being used, bbaasshh will attempt to - perform hostname completion when a word containing a @@ - is being completed (see CCoommpplleettiinngg under RREEAADDLLIINNEE + perform hostname completion when a word containing a @@ + is being completed (see CCoommpplleettiinngg under RREEAADDLLIINNEE above). This is enabled by default. hhuuppoonneexxiitt If set, bbaasshh will send SSIIGGHHUUPP to all jobs when an inter- active login shell exits. iinntteerraaccttiivvee__ccoommmmeennttss If set, allow a word beginning with ## to cause that word - and all remaining characters on that line to be ignored - in an interactive shell (see CCOOMMMMEENNTTSS above). This + and all remaining characters on that line to be ignored + in an interactive shell (see CCOOMMMMEENNTTSS above). This option is enabled by default. - lliitthhiisstt If set, and the ccmmddhhiisstt option is enabled, multi-line + lliitthhiisstt If set, and the ccmmddhhiisstt option is enabled, multi-line commands are saved to the history with embedded newlines rather than using semicolon separators where possible. llooggiinn__sshheellll - The shell sets this option if it is started as a login - shell (see IINNVVOOCCAATTIIOONN above). The value may not be + The shell sets this option if it is started as a login + shell (see IINNVVOOCCAATTIIOONN above). The value may not be changed. mmaaiillwwaarrnn - If set, and a file that bbaasshh is checking for mail has - been accessed since the last time it was checked, the - message ``The mail in _m_a_i_l_f_i_l_e has been read'' is dis- + If set, and a file that bbaasshh is checking for mail has + been accessed since the last time it was checked, the + message ``The mail in _m_a_i_l_f_i_l_e has been read'' is dis- played. nnoo__eemmppttyy__ccmmdd__ccoommpplleettiioonn - If set, and rreeaaddlliinnee is being used, bbaasshh will not + If set, and rreeaaddlliinnee is being used, bbaasshh will not attempt to search the PPAATTHH for possible completions when completion is attempted on an empty line. nnooccaasseegglloobb - If set, bbaasshh matches filenames in a case-insensitive + If set, bbaasshh matches filenames in a case-insensitive fashion when performing pathname expansion (see PPaatthhnnaammee EExxppaannssiioonn above). nnuullllgglloobb - If set, bbaasshh allows patterns which match no files (see - PPaatthhnnaammee EExxppaannssiioonn above) to expand to a null string, + If set, bbaasshh allows patterns which match no files (see + PPaatthhnnaammee EExxppaannssiioonn above) to expand to a null string, rather than themselves. pprrooggccoommpp If set, the programmable completion facilities (see PPrroo-- @@ -4424,44 +4431,44 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS enabled by default. pprroommppttvvaarrss If set, prompt strings undergo parameter expansion, com- - mand substitution, arithmetic expansion, and quote - removal after being expanded as described in PPRROOMMPPTTIINNGG + mand substitution, arithmetic expansion, and quote + removal after being expanded as described in PPRROOMMPPTTIINNGG above. This option is enabled by default. rreessttrriicctteedd__sshheellll - The shell sets this option if it is started in + The shell sets this option if it is started in restricted mode (see RREESSTTRRIICCTTEEDD SSHHEELLLL below). The value - may not be changed. This is not reset when the startup - files are executed, allowing the startup files to dis- + may not be changed. This is not reset when the startup + files are executed, allowing the startup files to dis- cover whether or not a shell is restricted. sshhiifftt__vveerrbboossee - If set, the sshhiifftt builtin prints an error message when + If set, the sshhiifftt builtin prints an error message when the shift count exceeds the number of positional parame- ters. ssoouurrcceeppaatthh If set, the ssoouurrccee (..) builtin uses the value of PPAATTHH to - find the directory containing the file supplied as an + find the directory containing the file supplied as an argument. This option is enabled by default. xxppgg__eecchhoo - If set, the eecchhoo builtin expands backslash-escape + If set, the eecchhoo builtin expands backslash-escape sequences by default. ssuussppeenndd [--ff] - Suspend the execution of this shell until it receives a SSIIGGCCOONNTT - signal. The --ff option says not to complain if this is a login - shell; just suspend anyway. The return status is 0 unless the + Suspend the execution of this shell until it receives a SSIIGGCCOONNTT + signal. The --ff option says not to complain if this is a login + shell; just suspend anyway. The return status is 0 unless the shell is a login shell and --ff is not supplied, or if job control is not enabled. tteesstt _e_x_p_r [[ _e_x_p_r ]] - Return a status of 0 or 1 depending on the evaluation of the - conditional expression _e_x_p_r. Each operator and operand must be - a separate argument. Expressions are composed of the primaries + Return a status of 0 or 1 depending on the evaluation of the + conditional expression _e_x_p_r. Each operator and operand must be + a separate argument. Expressions are composed of the primaries described above under CCOONNDDIITTIIOONNAALL EEXXPPRREESSSSIIOONNSS. - Expressions may be combined using the following operators, + Expressions may be combined using the following operators, listed in decreasing order of precedence. !! _e_x_p_r True if _e_x_p_r is false. (( _e_x_p_r )) - Returns the value of _e_x_p_r. This may be used to override + Returns the value of _e_x_p_r. This may be used to override the normal precedence of operators. _e_x_p_r_1 -aa _e_x_p_r_2 True if both _e_x_p_r_1 and _e_x_p_r_2 are true. @@ -4478,107 +4485,107 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS null. 2 arguments If the first argument is !!, the expression is true if and - only if the second argument is null. If the first argu- - ment is one of the unary conditional operators listed - above under CCOONNDDIITTIIOONNAALL EEXXPPRREESSSSIIOONNSS, the expression is + only if the second argument is null. If the first argu- + ment is one of the unary conditional operators listed + above under CCOONNDDIITTIIOONNAALL EEXXPPRREESSSSIIOONNSS, the expression is true if the unary test is true. If the first argument is not a valid unary conditional operator, the expression is false. 3 arguments - If the second argument is one of the binary conditional + If the second argument is one of the binary conditional operators listed above under CCOONNDDIITTIIOONNAALL EEXXPPRREESSSSIIOONNSS, the result of the expression is the result of the binary test - using the first and third arguments as operands. If the - first argument is !!, the value is the negation of the - two-argument test using the second and third arguments. + using the first and third arguments as operands. If the + first argument is !!, the value is the negation of the + two-argument test using the second and third arguments. If the first argument is exactly (( and the third argument - is exactly )), the result is the one-argument test of the - second argument. Otherwise, the expression is false. - The --aa and --oo operators are considered binary operators + is exactly )), the result is the one-argument test of the + second argument. Otherwise, the expression is false. + The --aa and --oo operators are considered binary operators in this case. 4 arguments If the first argument is !!, the result is the negation of - the three-argument expression composed of the remaining + the three-argument expression composed of the remaining arguments. Otherwise, the expression is parsed and eval- - uated according to precedence using the rules listed + uated according to precedence using the rules listed above. 5 or more arguments - The expression is parsed and evaluated according to + The expression is parsed and evaluated according to precedence using the rules listed above. - ttiimmeess Print the accumulated user and system times for the shell and + ttiimmeess Print the accumulated user and system times for the shell and for processes run from the shell. The return status is 0. ttrraapp [--llpp] [_a_r_g] [_s_i_g_s_p_e_c ...] - The command _a_r_g is to be read and executed when the shell - receives signal(s) _s_i_g_s_p_e_c. If _a_r_g is absent or --, all speci- + The command _a_r_g is to be read and executed when the shell + receives signal(s) _s_i_g_s_p_e_c. If _a_r_g is absent or --, all speci- fied signals are reset to their original values (the values they - had upon entrance to the shell). If _a_r_g is the null string the - signal specified by each _s_i_g_s_p_e_c is ignored by the shell and by - the commands it invokes. If _a_r_g is not present and --pp has been - supplied, then the trap commands associated with each _s_i_g_s_p_e_c - are displayed. If no arguments are supplied or if only --pp is - given, ttrraapp prints the list of commands associated with each - signal number. The --ll option causes the shell to print a list - of signal names and their corresponding numbers. Each _s_i_g_s_p_e_c - is either a signal name defined in <_s_i_g_n_a_l_._h>, or a signal num- - ber. If a _s_i_g_s_p_e_c is EEXXIITT (0) the command _a_r_g is executed on - exit from the shell. If a _s_i_g_s_p_e_c is DDEEBBUUGG, the command _a_r_g is + had upon entrance to the shell). If _a_r_g is the null string the + signal specified by each _s_i_g_s_p_e_c is ignored by the shell and by + the commands it invokes. If _a_r_g is not present and --pp has been + supplied, then the trap commands associated with each _s_i_g_s_p_e_c + are displayed. If no arguments are supplied or if only --pp is + given, ttrraapp prints the list of commands associated with each + signal number. The --ll option causes the shell to print a list + of signal names and their corresponding numbers. Each _s_i_g_s_p_e_c + is either a signal name defined in <_s_i_g_n_a_l_._h>, or a signal num- + ber. If a _s_i_g_s_p_e_c is EEXXIITT (0) the command _a_r_g is executed on + exit from the shell. If a _s_i_g_s_p_e_c is DDEEBBUUGG, the command _a_r_g is executed before every _s_i_m_p_l_e _c_o_m_m_a_n_d, _f_o_r command, _c_a_s_e command, - _s_e_l_e_c_t command, every arithmetic _f_o_r command, and before the - first command executes in a shell function (see SSHHEELLLL GGRRAAMMMMAARR - above). Refer to the description of the eexxttgglloobb option to the + _s_e_l_e_c_t command, every arithmetic _f_o_r command, and before the + first command executes in a shell function (see SSHHEELLLL GGRRAAMMMMAARR + above). Refer to the description of the eexxttgglloobb option to the sshhoopptt builtin for details of its effect on the DDEEBBUUGG trap. If a - _s_i_g_s_p_e_c is EERRRR, the command _a_r_g is executed whenever a simple - command has a non-zero exit status, subject to the following - conditions. The EERRRR trap is not executed if the failed command - is part of the command list immediately following a wwhhiillee or + _s_i_g_s_p_e_c is EERRRR, the command _a_r_g is executed whenever a simple + command has a non-zero exit status, subject to the following + conditions. The EERRRR trap is not executed if the failed command + is part of the command list immediately following a wwhhiillee or uunnttiill keyword, part of the test in an _i_f statement, part of a &&&& - or |||| list, or if the command's return value is being inverted - via !!. These are the same conditions obeyed by the eerrrreexxiitt - option. If a _s_i_g_s_p_e_c is RREETTUURRNN, the command _a_r_g is executed - each time a shell function or a script executed with the .. or - ssoouurrccee builtins finishes executing. Signals ignored upon entry - to the shell cannot be trapped or reset. Trapped signals are - reset to their original values in a child process when it is - created. The return status is false if any _s_i_g_s_p_e_c is invalid; + or |||| list, or if the command's return value is being inverted + via !!. These are the same conditions obeyed by the eerrrreexxiitt + option. If a _s_i_g_s_p_e_c is RREETTUURRNN, the command _a_r_g is executed + each time a shell function or a script executed with the .. or + ssoouurrccee builtins finishes executing. Signals ignored upon entry + to the shell cannot be trapped or reset. Trapped signals are + reset to their original values in a child process when it is + created. The return status is false if any _s_i_g_s_p_e_c is invalid; otherwise ttrraapp returns true. ttyyppee [--aaffttppPP] _n_a_m_e [_n_a_m_e ...] - With no options, indicate how each _n_a_m_e would be interpreted if + With no options, indicate how each _n_a_m_e would be interpreted if used as a command name. If the --tt option is used, ttyyppee prints a - string which is one of _a_l_i_a_s, _k_e_y_w_o_r_d, _f_u_n_c_t_i_o_n, _b_u_i_l_t_i_n, or - _f_i_l_e if _n_a_m_e is an alias, shell reserved word, function, - builtin, or disk file, respectively. If the _n_a_m_e is not found, - then nothing is printed, and an exit status of false is - returned. If the --pp option is used, ttyyppee either returns the + string which is one of _a_l_i_a_s, _k_e_y_w_o_r_d, _f_u_n_c_t_i_o_n, _b_u_i_l_t_i_n, or + _f_i_l_e if _n_a_m_e is an alias, shell reserved word, function, + builtin, or disk file, respectively. If the _n_a_m_e is not found, + then nothing is printed, and an exit status of false is + returned. If the --pp option is used, ttyyppee either returns the name of the disk file that would be executed if _n_a_m_e were speci- fied as a command name, or nothing if ``type -t name'' would not - return _f_i_l_e. The --PP option forces a PPAATTHH search for each _n_a_m_e, + return _f_i_l_e. The --PP option forces a PPAATTHH search for each _n_a_m_e, even if ``type -t name'' would not return _f_i_l_e. If a command is - hashed, --pp and --PP print the hashed value, not necessarily the + hashed, --pp and --PP print the hashed value, not necessarily the file that appears first in PPAATTHH. If the --aa option is used, ttyyppee - prints all of the places that contain an executable named _n_a_m_e. - This includes aliases and functions, if and only if the --pp - option is not also used. The table of hashed commands is not - consulted when using --aa. The --ff option suppresses shell func- - tion lookup, as with the ccoommmmaanndd builtin. ttyyppee returns true if + prints all of the places that contain an executable named _n_a_m_e. + This includes aliases and functions, if and only if the --pp + option is not also used. The table of hashed commands is not + consulted when using --aa. The --ff option suppresses shell func- + tion lookup, as with the ccoommmmaanndd builtin. ttyyppee returns true if any of the arguments are found, false if none are found. uulliimmiitt [--SSHHaaccddffllmmnnppssttuuvv [_l_i_m_i_t]] - Provides control over the resources available to the shell and - to processes started by it, on systems that allow such control. + Provides control over the resources available to the shell and + to processes started by it, on systems that allow such control. The --HH and --SS options specify that the hard or soft limit is set - for the given resource. A hard limit cannot be increased once - it is set; a soft limit may be increased up to the value of the - hard limit. If neither --HH nor --SS is specified, both the soft - and hard limits are set. The value of _l_i_m_i_t can be a number in + for the given resource. A hard limit cannot be increased once + it is set; a soft limit may be increased up to the value of the + hard limit. If neither --HH nor --SS is specified, both the soft + and hard limits are set. The value of _l_i_m_i_t can be a number in the unit specified for the resource or one of the special values - hhaarrdd, ssoofftt, or uunnlliimmiitteedd, which stand for the current hard - limit, the current soft limit, and no limit, respectively. If - _l_i_m_i_t is omitted, the current value of the soft limit of the - resource is printed, unless the --HH option is given. When more - than one resource is specified, the limit name and unit are + hhaarrdd, ssoofftt, or uunnlliimmiitteedd, which stand for the current hard + limit, the current soft limit, and no limit, respectively. If + _l_i_m_i_t is omitted, the current value of the soft limit of the + resource is printed, unless the --HH option is given. When more + than one resource is specified, the limit name and unit are printed before the value. Other options are interpreted as fol- lows: --aa All current limits are reported @@ -4592,63 +4599,63 @@ SSHHEELLLL BBUUIILLTTIINN CCOOMMMMAANNDDSS --pp The pipe size in 512-byte blocks (this may not be set) --ss The maximum stack size --tt The maximum amount of cpu time in seconds - --uu The maximum number of processes available to a single + --uu The maximum number of processes available to a single user - --vv The maximum amount of virtual memory available to the + --vv The maximum amount of virtual memory available to the shell If _l_i_m_i_t is given, it is the new value of the specified resource (the --aa option is display only). If no option is given, then --ff - is assumed. Values are in 1024-byte increments, except for --tt, - which is in seconds, --pp, which is in units of 512-byte blocks, - and --nn and --uu, which are unscaled values. The return status is - 0 unless an invalid option or argument is supplied, or an error + is assumed. Values are in 1024-byte increments, except for --tt, + which is in seconds, --pp, which is in units of 512-byte blocks, + and --nn and --uu, which are unscaled values. The return status is + 0 unless an invalid option or argument is supplied, or an error occurs while setting a new limit. uummaasskk [--pp] [--SS] [_m_o_d_e] The user file-creation mask is set to _m_o_d_e. If _m_o_d_e begins with - a digit, it is interpreted as an octal number; otherwise it is - interpreted as a symbolic mode mask similar to that accepted by - _c_h_m_o_d(1). If _m_o_d_e is omitted, the current value of the mask is - printed. The --SS option causes the mask to be printed in sym- - bolic form; the default output is an octal number. If the --pp + a digit, it is interpreted as an octal number; otherwise it is + interpreted as a symbolic mode mask similar to that accepted by + _c_h_m_o_d(1). If _m_o_d_e is omitted, the current value of the mask is + printed. The --SS option causes the mask to be printed in sym- + bolic form; the default output is an octal number. If the --pp option is supplied, and _m_o_d_e is omitted, the output is in a form that may be reused as input. The return status is 0 if the mode - was successfully changed or if no _m_o_d_e argument was supplied, + was successfully changed or if no _m_o_d_e argument was supplied, and false otherwise. uunnaalliiaass [-aa] [_n_a_m_e ...] - Remove each _n_a_m_e from the list of defined aliases. If --aa is - supplied, all alias definitions are removed. The return value + Remove each _n_a_m_e from the list of defined aliases. If --aa is + supplied, all alias definitions are removed. The return value is true unless a supplied _n_a_m_e is not a defined alias. uunnsseett [-ffvv] [_n_a_m_e ...] - For each _n_a_m_e, remove the corresponding variable or function. + For each _n_a_m_e, remove the corresponding variable or function. If no options are supplied, or the --vv option is given, each _n_a_m_e - refers to a shell variable. Read-only variables may not be + refers to a shell variable. Read-only variables may not be unset. If --ff is specifed, each _n_a_m_e refers to a shell function, - and the function definition is removed. Each unset variable or - function is removed from the environment passed to subsequent + and the function definition is removed. Each unset variable or + function is removed from the environment passed to subsequent commands. If any of RRAANNDDOOMM, SSEECCOONNDDSS, LLIINNEENNOO, HHIISSTTCCMMDD, FFUUNNCCNNAAMMEE, - GGRROOUUPPSS, or DDIIRRSSTTAACCKK are unset, they lose their special proper- - ties, even if they are subsequently reset. The exit status is + GGRROOUUPPSS, or DDIIRRSSTTAACCKK are unset, they lose their special proper- + ties, even if they are subsequently reset. The exit status is true unless a _n_a_m_e is readonly. wwaaiitt [_n] - Wait for the specified process and return its termination sta- - tus. _n may be a process ID or a job specification; if a job - spec is given, all processes in that job's pipeline are waited - for. If _n is not given, all currently active child processes + Wait for the specified process and return its termination sta- + tus. _n may be a process ID or a job specification; if a job + spec is given, all processes in that job's pipeline are waited + for. If _n is not given, all currently active child processes are waited for, and the return status is zero. If _n specifies a - non-existent process or job, the return status is 127. Other- - wise, the return status is the exit status of the last process + non-existent process or job, the return status is 127. Other- + wise, the return status is the exit status of the last process or job waited for. RREESSTTRRIICCTTEEDD SSHHEELLLL If bbaasshh is started with the name rrbbaasshh, or the --rr option is supplied at - invocation, the shell becomes restricted. A restricted shell is used - to set up an environment more controlled than the standard shell. It - behaves identically to bbaasshh with the exception that the following are + invocation, the shell becomes restricted. A restricted shell is used + to set up an environment more controlled than the standard shell. It + behaves identically to bbaasshh with the exception that the following are disallowed or not performed: +o changing directories with ccdd @@ -4657,28 +4664,28 @@ RREESSTTRRIICCTTEEDD SSHHEELLLL +o specifying command names containing // - +o specifying a file name containing a // as an argument to the .. + +o specifying a file name containing a // as an argument to the .. builtin command - +o Specifying a filename containing a slash as an argument to the + +o Specifying a filename containing a slash as an argument to the --pp option to the hhaasshh builtin command - +o importing function definitions from the shell environment at + +o importing function definitions from the shell environment at startup - +o parsing the value of SSHHEELLLLOOPPTTSS from the shell environment at + +o parsing the value of SSHHEELLLLOOPPTTSS from the shell environment at startup - +o redirecting output using the >, >|, <>, >&, &>, and >> redirec- + +o redirecting output using the >, >|, <>, >&, &>, and >> redirec- tion operators +o using the eexxeecc builtin command to replace the shell with another command - +o adding or deleting builtin commands with the --ff and --dd options + +o adding or deleting builtin commands with the --ff and --dd options to the eennaabbllee builtin command - +o Using the eennaabbllee builtin command to enable disabled shell + +o Using the eennaabbllee builtin command to enable disabled shell builtins +o specifying the --pp option to the ccoommmmaanndd builtin command @@ -4688,14 +4695,14 @@ RREESSTTRRIICCTTEEDD SSHHEELLLL These restrictions are enforced after any startup files are read. When a command that is found to be a shell script is executed (see CCOOMM-- - MMAANNDD EEXXEECCUUTTIIOONN above), rrbbaasshh turns off any restrictions in the shell + MMAANNDD EEXXEECCUUTTIIOONN above), rrbbaasshh turns off any restrictions in the shell spawned to execute the script. SSEEEE AALLSSOO _B_a_s_h _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l, Brian Fox and Chet Ramey _T_h_e _G_n_u _R_e_a_d_l_i_n_e _L_i_b_r_a_r_y, Brian Fox and Chet Ramey _T_h_e _G_n_u _H_i_s_t_o_r_y _L_i_b_r_a_r_y, Brian Fox and Chet Ramey - _P_o_r_t_a_b_l_e _O_p_e_r_a_t_i_n_g _S_y_s_t_e_m _I_n_t_e_r_f_a_c_e _(_P_O_S_I_X_) _P_a_r_t _2_: _S_h_e_l_l _a_n_d _U_t_i_l_i_- + _P_o_r_t_a_b_l_e _O_p_e_r_a_t_i_n_g _S_y_s_t_e_m _I_n_t_e_r_f_a_c_e _(_P_O_S_I_X_) _P_a_r_t _2_: _S_h_e_l_l _a_n_d _U_t_i_l_i_- _t_i_e_s, IEEE _s_h(1), _k_s_h(1), _c_s_h(1) _e_m_a_c_s(1), _v_i(1) @@ -4711,7 +4718,7 @@ FFIILLEESS _~_/_._b_a_s_h_r_c The individual per-interactive-shell startup file _~_/_._b_a_s_h___l_o_g_o_u_t - The individual login shell cleanup file, executed when a login + The individual login shell cleanup file, executed when a login shell exits _~_/_._i_n_p_u_t_r_c Individual _r_e_a_d_l_i_n_e initialization file @@ -4725,14 +4732,14 @@ AAUUTTHHOORRSS BBUUGG RREEPPOORRTTSS If you find a bug in bbaasshh,, you should report it. But first, you should - make sure that it really is a bug, and that it appears in the latest - version of bbaasshh. The latest version is always available from + make sure that it really is a bug, and that it appears in the latest + version of bbaasshh. The latest version is always available from _f_t_p_:_/_/_f_t_p_._g_n_u_._o_r_g_/_p_u_b_/_b_a_s_h_/. - Once you have determined that a bug actually exists, use the _b_a_s_h_b_u_g - command to submit a bug report. If you have a fix, you are encouraged - to mail that as well! Suggestions and `philosophical' bug reports may - be mailed to _b_u_g_-_b_a_s_h_@_g_n_u_._o_r_g or posted to the Usenet newsgroup + Once you have determined that a bug actually exists, use the _b_a_s_h_b_u_g + command to submit a bug report. If you have a fix, you are encouraged + to mail that as well! Suggestions and `philosophical' bug reports may + be mailed to _b_u_g_-_b_a_s_h_@_g_n_u_._o_r_g or posted to the Usenet newsgroup ggnnuu..bbaasshh..bbuugg. ALL bug reports should include: @@ -4743,7 +4750,7 @@ BBUUGG RREEPPOORRTTSS A description of the bug behaviour A short script or `recipe' which exercises the bug - _b_a_s_h_b_u_g inserts the first three items automatically into the template + _b_a_s_h_b_u_g inserts the first three items automatically into the template it provides for filing a bug report. Comments and bug reports concerning this manual page should be directed @@ -4760,15 +4767,15 @@ BBUUGGSS Shell builtin commands and functions are not stoppable/restartable. Compound commands and command sequences of the form `a ; b ; c' are not - handled gracefully when process suspension is attempted. When a pro- + handled gracefully when process suspension is attempted. When a pro- cess is stopped, the shell immediately executes the next command in the sequence. It suffices to place the sequence of commands between paren- theses to force it into a subshell, which may be stopped as a unit. - Commands inside of $$((...)) command substitution are not parsed until - substitution is attempted. This will delay error reporting until some + Commands inside of $$((...)) command substitution are not parsed until + substitution is attempted. This will delay error reporting until some time after the command is entered. For example, unmatched parentheses, - even inside shell comments, will result in error messages while the + even inside shell comments, will result in error messages while the construct is being read. Array variables may not (yet) be exported. diff --git a/doc/bash.1 b/doc/bash.1 index 4d1cc25da..0b36dca48 100644 --- a/doc/bash.1 +++ b/doc/bash.1 @@ -3546,9 +3546,11 @@ builtin below. .B \-z \fIstring\fP True if the length of \fIstring\fP is zero. .TP -.B \-n \fIstring\fP -.TP \fIstring\fP +.PD 0 +.TP +.B \-n \fIstring\fP +.PD True if the length of .I string is non-zero. diff --git a/tests/test.tests b/tests/test.tests index e378cf2bf..a915c4e40 100644 --- a/tests/test.tests +++ b/tests/test.tests @@ -355,7 +355,7 @@ case "${THIS_SH}" in esac if ln -s ${SHNAME} /tmp/test.symlink 2>/dev/null; then - chgrp ${GROUPS[0]} /tmp/test.symlink + chgrp ${GROUPS[0]} /tmp/test.symlink 2>/dev/null echo 't -h /tmp/test.symlink' t -h /tmp/test.symlink # some systems don't let you remove this