commit bash-20130208 snapshot

diff --git a/CHANGES-4.3 b/CHANGES-4.3
index 8b579a4a679d56ebc1d7883764712356a4783295..33f721be4ad8a667c9c61114997ee5c8814380de 100644 (file)
--- a/CHANGES-4.3
+++ b/CHANGES-4.3
@@ -233,7 +233,7 @@ uuu. Fixed a bug that caused the shell to dump core if `read' reads an escaped
 vvv. Fixed a bug that caused BASH_COMMAND to be set to an incorrect value when
      executing a (...) subshell.
 
-www. Fixed a pointer aliasing bug with the token string in arithmetic
+www. Fixed a couple of pointer aliasing bugs with the token string in arithmetic
      evaluation.
 
 xxx. Fixed a bug with parsing multi-line command substitutions when reading
@@ -285,6 +285,36 @@ llll. Fixed a bug that caused the -e option to be re-enabled using `set -e'
 
 mmmm. Fixed a (mostly theoretical) bug with input lines longer than SIZE_MAX.
 
+nnnn. Fixed a bug that could result in double evaluation of command
+      substitutions when they appear in failed redirections.
+
+oooo. Fixed a bug that could cause seg faults during `mapfile' callbacks if
+      the callback unsets the array variable mapfile is using.
+
+pppp. Fixed several problems with variable assignments using ${var:=value}
+      when the variable assignment is supposed to have side effects.
+
+qqqq. Fixed a bug that caused a failure of an assignment statement preceding a
+      builtin caused the next invocation of a special builtin to exit the shell.
+
+rrrr. Fixed several problems with IFS when it appears in the temporary environment
+      and is used in redirections.
+
+ssss. Fixed a problem that caused IFS changes using ${IFS:=value} to modify
+      how preceding expansions were split.
+
+tttt. Fixed a problem that caused subshells to not run an EXIT trap they set.
+
+uuuu. Fixed a problem that caused shells started in posix mode to attempt to
+      import shell functions with invalid names from the environment.  We now
+      print a warning.
+
+vvvv. Worked around a kernel problem that caused SIGCHLD to interrupt open(2)
+      on a FIFO used for process substitution, even if the SIGCHLD handler was
+      installed with the SA_RESTART flag.
+
+wwww. Fixed a problem that resulted in inconsistent expansion of $* and ${a[*]}.
+
 2.  Changes to Readline
 
 a.  Fixed a bug that did not allow the `dd', `cc', or `yy' vi editing mode

diff --git a/CWRU/CWRU.chlog b/CWRU/CWRU.chlog
index 04c629e751e68896a5340321ca939c444f2b63fd..59759f247312b03a04f9eb8110f1e3ac899b86f7 100644 (file)
--- a/CWRU/CWRU.chlog
+++ b/CWRU/CWRU.chlog
@@ -4502,3 +4502,23 @@ variables.c
          but create them as (invisible) exported variables so they pass
          through the environment.  Print an error message so user knows
          what's wrong.  Fixes bug reported by Tomas Trnka <ttrnka@mail.muni.cz>
+
+                                   2/9
+                                   ---
+
+builtins/read.def
+       - sigalrm_seen, alrmbuf: now global so the rest of the shell (trap.c)
+         can use them
+       - sigalrm: just sets flag, no longer longjmps to alrmbuf; problem was
+         longjmp without manipulating signal mask, leaving SIGALRM blocked
+
+quit.h
+       - move CHECK_ALRM macro here from builtins/read.def so trap.c:
+         check_signals() can call it
+
+trap.c
+       - check_signals: add call to CHECK_ALRM before QUIT
+       - check_signals_and_traps: call check_signals() instead of including
+         CHECK_ALRM and QUIT inline.  Integrating check for read builtin's
+         SIGALRM (where zread call to check_signals_and_traps can see it)
+         fixes problem reported by Mike Frysinger <vapier@gentoo.org>

diff --git a/CWRU/CWRU.chlog~ b/CWRU/CWRU.chlog~
index d17feb06f5f7032e60984b6c48d44e9b846d398a..55e1cd71a202df8cbcadabe79bc81c7cf8634209 100644 (file)
--- a/CWRU/CWRU.chlog~
+++ b/CWRU/CWRU.chlog~
@@ -4493,3 +4493,30 @@ builtins/setattr.def
          bother marking the temporary variable for propagation if so.  The
          propagation is superfluous and will result in a strange error
          message
+
+                                   2/2
+                                   ---
+variables.c
+       - initialize_shell_variables: don't try to import function definitions
+         with invalid names from the environment if already in posix mode,
+         but create them as (invisible) exported variables so they pass
+         through the environment.  Print an error message so user knows
+         what's wrong.  Fixes bug reported by Tomas Trnka <ttrnka@mail.muni.cz>
+
+                                   2/9
+                                   ---
+
+builtins/read.def
+       - sigalrm_seen, alrmbuf: now global so the rest of the shell (trap.c)
+         can use them
+
+quit.h
+       - move CHECK_ALRM macro here from builtins/read.def so trap.c:
+         check_signals() can call it
+
+trap.c
+       - check_signals: add call to CHECK_ALRM before QUIT
+       - check_signals_and_traps: call check_signals() instead of including
+         CHECK_ALRM and QUIT inline.  Integrating check for read builtin's
+         SIGALRM (where zread call to check_signals_and_traps can see it)
+         fixes problem reported by Mike Frysinger <vapier@gentoo.org>

diff --git a/autom4te.cache/output.3 b/autom4te.cache/output.3
index 3ddf6f50b92b1d232a6d96258d56c519b7822fd4..bea78e3a734dc26f0f3c557179e5b698ca5c5012 100644 (file)
--- a/autom4te.cache/output.3
+++ b/autom4te.cache/output.3
@@ -1,5 +1,5 @@
 @%:@! /bin/sh
-@%:@ From configure.ac for Bash 4.3, version 4.054.
+@%:@ From configure.ac for Bash 4.3, version 4.055.
 @%:@ Guess values for system-dependent variables and create Makefiles.
 @%:@ Generated by GNU Autoconf 2.68 for bash 4.3-alpha.
 @%:@
@@ -2830,6 +2830,7 @@ sparc-linux*)     opt_bash_malloc=no ;;   # sparc running linux; requires ELF
 *-mirbsd*)     opt_bash_malloc=no ;;   # they claim it needs eight-bit alignment
 *-aix*)                opt_bash_malloc=no ;;   # AIX machines
 *-nextstep*)   opt_bash_malloc=no ;;   # NeXT machines running NeXTstep
+*-openstep*)   opt_bash_malloc=no ;;   # i386/Sparc/HP machines running Openstep
 *-macos*)      opt_bash_malloc=no ;;   # Apple MacOS X
 *-rhapsody*)   opt_bash_malloc=no ;;   # Apple Rhapsody (MacOS X)
 *-darwin*)     opt_bash_malloc=no ;;   # Apple Darwin (MacOS X)
@@ -15830,6 +15831,7 @@ linux*)         LOCAL_LDFLAGS=-rdynamic          # allow dynamic loading
 powerux*)      LOCAL_LIBS="-lgen" ;;
 cygwin*)       LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 opennt*|interix*) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG -DBROKEN_DIRENT_D_INO -D_POSIX_SOURCE -D_ALL_SOURCE -DRECYCLES_PIDS" ;;
+*openstep*)    LOCAL_CFLAGS="-D__APPLE_CC__" ;;
 esac
 
 case "${host_os}-${CC}" in

diff --git a/autom4te.cache/requests b/autom4te.cache/requests
index 5e133be518a766f69634ed795b6f9e37ea00a8fb..a690d74121fb4f40fc31f7f36e31acec0948a38d 100644 (file)
--- a/autom4te.cache/requests
+++ b/autom4te.cache/requests
@@ -15,55 +15,55 @@
                         'configure.in'
                       ],
                       {
-                        '_LT_AC_TAGCONFIG' => 1,
                         'AM_PROG_F77_C_O' => 1,
-                        'AC_INIT' => 1,
+                        '_LT_AC_TAGCONFIG' => 1,
                         'm4_pattern_forbid' => 1,
-                        '_AM_COND_IF' => 1,
+                        'AC_INIT' => 1,
                         'AC_CANONICAL_TARGET' => 1,
-                        'AC_SUBST' => 1,
+                        '_AM_COND_IF' => 1,
                         'AC_CONFIG_LIBOBJ_DIR' => 1,
-                        'AC_FC_SRCEXT' => 1,
+                        'AC_SUBST' => 1,
                         'AC_CANONICAL_HOST' => 1,
+                        'AC_FC_SRCEXT' => 1,
                         'AC_PROG_LIBTOOL' => 1,
                         'AM_INIT_AUTOMAKE' => 1,
-                        'AM_PATH_GUILE' => 1,
                         'AC_CONFIG_SUBDIRS' => 1,
+                        'AM_PATH_GUILE' => 1,
                         'AM_AUTOMAKE_VERSION' => 1,
                         'LT_CONFIG_LTDL_DIR' => 1,
-                        'AC_REQUIRE_AUX_FILE' => 1,
                         'AC_CONFIG_LINKS' => 1,
-                        'm4_sinclude' => 1,
+                        'AC_REQUIRE_AUX_FILE' => 1,
                         'LT_SUPPORTED_TAG' => 1,
+                        'm4_sinclude' => 1,
                         'AM_MAINTAINER_MODE' => 1,
                         'AM_NLS' => 1,
                         'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
-                        'AM_MAKEFILE_INCLUDE' => 1,
                         '_m4_warn' => 1,
+                        'AM_MAKEFILE_INCLUDE' => 1,
                         'AM_PROG_CXX_C_O' => 1,
-                        '_AM_COND_ENDIF' => 1,
                         '_AM_MAKEFILE_INCLUDE' => 1,
+                        '_AM_COND_ENDIF' => 1,
                         'AM_ENABLE_MULTILIB' => 1,
                         'AM_SILENT_RULES' => 1,
                         'AM_PROG_MOC' => 1,
                         'AC_CONFIG_FILES' => 1,
-                        'include' => 1,
                         'LT_INIT' => 1,
-                        'AM_PROG_AR' => 1,
+                        'include' => 1,
                         'AM_GNU_GETTEXT' => 1,
+                        'AM_PROG_AR' => 1,
                         'AC_LIBSOURCE' => 1,
-                        'AM_PROG_FC_C_O' => 1,
                         'AC_CANONICAL_BUILD' => 1,
+                        'AM_PROG_FC_C_O' => 1,
                         'AC_FC_FREEFORM' => 1,
                         'AH_OUTPUT' => 1,
-                        '_AM_SUBST_NOTMAKE' => 1,
                         'AC_CONFIG_AUX_DIR' => 1,
-                        'sinclude' => 1,
-                        'AM_PROG_CC_C_O' => 1,
+                        '_AM_SUBST_NOTMAKE' => 1,
                         'm4_pattern_allow' => 1,
-                        'AM_XGETTEXT_OPTION' => 1,
-                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_PROG_CC_C_O' => 1,
+                        'sinclude' => 1,
                         'AM_CONDITIONAL' => 1,
+                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_XGETTEXT_OPTION' => 1,
                         'AC_CONFIG_HEADERS' => 1,
                         'AC_DEFINE_TRACE_LITERAL' => 1,
                         'AM_POT_TOOLS' => 1,
@@ -84,55 +84,55 @@
                         'configure.in'
                       ],
                       {
-                        'AM_PROG_F77_C_O' => 1,
                         '_LT_AC_TAGCONFIG' => 1,
-                        'm4_pattern_forbid' => 1,
+                        'AM_PROG_F77_C_O' => 1,
                         'AC_INIT' => 1,
-                        'AC_CANONICAL_TARGET' => 1,
+                        'm4_pattern_forbid' => 1,
                         '_AM_COND_IF' => 1,
-                        'AC_CONFIG_LIBOBJ_DIR' => 1,
+                        'AC_CANONICAL_TARGET' => 1,
                         'AC_SUBST' => 1,
-                        'AC_CANONICAL_HOST' => 1,
+                        'AC_CONFIG_LIBOBJ_DIR' => 1,
                         'AC_FC_SRCEXT' => 1,
+                        'AC_CANONICAL_HOST' => 1,
                         'AC_PROG_LIBTOOL' => 1,
                         'AM_INIT_AUTOMAKE' => 1,
-                        'AC_CONFIG_SUBDIRS' => 1,
                         'AM_PATH_GUILE' => 1,
+                        'AC_CONFIG_SUBDIRS' => 1,
                         'AM_AUTOMAKE_VERSION' => 1,
                         'LT_CONFIG_LTDL_DIR' => 1,
-                        'AC_CONFIG_LINKS' => 1,
                         'AC_REQUIRE_AUX_FILE' => 1,
-                        'LT_SUPPORTED_TAG' => 1,
+                        'AC_CONFIG_LINKS' => 1,
                         'm4_sinclude' => 1,
+                        'LT_SUPPORTED_TAG' => 1,
                         'AM_MAINTAINER_MODE' => 1,
                         'AM_NLS' => 1,
                         'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
-                        '_m4_warn' => 1,
                         'AM_MAKEFILE_INCLUDE' => 1,
+                        '_m4_warn' => 1,
                         'AM_PROG_CXX_C_O' => 1,
-                        '_AM_MAKEFILE_INCLUDE' => 1,
                         '_AM_COND_ENDIF' => 1,
+                        '_AM_MAKEFILE_INCLUDE' => 1,
                         'AM_ENABLE_MULTILIB' => 1,
                         'AM_SILENT_RULES' => 1,
                         'AM_PROG_MOC' => 1,
                         'AC_CONFIG_FILES' => 1,
-                        'LT_INIT' => 1,
                         'include' => 1,
-                        'AM_GNU_GETTEXT' => 1,
+                        'LT_INIT' => 1,
                         'AM_PROG_AR' => 1,
+                        'AM_GNU_GETTEXT' => 1,
                         'AC_LIBSOURCE' => 1,
-                        'AC_CANONICAL_BUILD' => 1,
                         'AM_PROG_FC_C_O' => 1,
+                        'AC_CANONICAL_BUILD' => 1,
                         'AC_FC_FREEFORM' => 1,
                         'AH_OUTPUT' => 1,
-                        'AC_CONFIG_AUX_DIR' => 1,
                         '_AM_SUBST_NOTMAKE' => 1,
-                        'm4_pattern_allow' => 1,
-                        'AM_PROG_CC_C_O' => 1,
+                        'AC_CONFIG_AUX_DIR' => 1,
                         'sinclude' => 1,
-                        'AM_CONDITIONAL' => 1,
-                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_PROG_CC_C_O' => 1,
+                        'm4_pattern_allow' => 1,
                         'AM_XGETTEXT_OPTION' => 1,
+                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_CONDITIONAL' => 1,
                         'AC_CONFIG_HEADERS' => 1,
                         'AC_DEFINE_TRACE_LITERAL' => 1,
                         'AM_POT_TOOLS' => 1,
@@ -155,19 +155,19 @@
                       {
                         'm4_pattern_forbid' => 1,
                         'AC_CONFIG_LIBOBJ_DIR' => 1,
-                        'AC_C_VOLATILE' => 1,
                         'AC_TYPE_OFF_T' => 1,
+                        'AC_C_VOLATILE' => 1,
                         'AC_FUNC_CLOSEDIR_VOID' => 1,
                         'AC_REPLACE_FNMATCH' => 1,
                         'AC_PROG_LIBTOOL' => 1,
                         'AC_FUNC_STAT' => 1,
-                        'AC_FUNC_WAIT3' => 1,
                         'AC_HEADER_TIME' => 1,
-                        'AC_FUNC_LSTAT' => 1,
-                        'AC_STRUCT_TM' => 1,
+                        'AC_FUNC_WAIT3' => 1,
                         'AM_AUTOMAKE_VERSION' => 1,
-                        'AC_FUNC_GETMNTENT' => 1,
+                        'AC_STRUCT_TM' => 1,
+                        'AC_FUNC_LSTAT' => 1,
                         'AC_TYPE_MODE_T' => 1,
+                        'AC_FUNC_GETMNTENT' => 1,
                         'AC_FUNC_STRTOD' => 1,
                         'AC_CHECK_HEADERS' => 1,
                         'AC_FUNC_STRNLEN' => 1,
@@ -186,17 +186,17 @@
                         'AC_STRUCT_ST_BLOCKS' => 1,
                         'AC_TYPE_SIGNAL' => 1,
                         'AC_TYPE_UID_T' => 1,
-                        'AC_PROG_MAKE_SET' => 1,
                         'AC_CONFIG_AUX_DIR' => 1,
-                        'm4_pattern_allow' => 1,
+                        'AC_PROG_MAKE_SET' => 1,
                         'sinclude' => 1,
+                        'm4_pattern_allow' => 1,
                         'AC_DEFINE_TRACE_LITERAL' => 1,
                         'AC_FUNC_STRERROR_R' => 1,
                         'AC_PROG_CC' => 1,
-                        'AC_DECL_SYS_SIGLIST' => 1,
                         'AC_FUNC_FORK' => 1,
-                        'AC_FUNC_STRCOLL' => 1,
+                        'AC_DECL_SYS_SIGLIST' => 1,
                         'AC_FUNC_VPRINTF' => 1,
+                        'AC_FUNC_STRCOLL' => 1,
                         'AC_PROG_YACC' => 1,
                         'AC_INIT' => 1,
                         'AC_STRUCT_TIMEZONE' => 1,
@@ -218,33 +218,33 @@
                         'AM_MAINTAINER_MODE' => 1,
                         'AC_FUNC_UTIME_NULL' => 1,
                         'AC_FUNC_SELECT_ARGTYPES' => 1,
-                        'AC_HEADER_STAT' => 1,
                         'AC_FUNC_STRFTIME' => 1,
-                        'AC_PROG_CPP' => 1,
+                        'AC_HEADER_STAT' => 1,
                         'AC_C_INLINE' => 1,
-                        'AC_PROG_LEX' => 1,
-                        'AC_C_CONST' => 1,
+                        'AC_PROG_CPP' => 1,
                         'AC_TYPE_PID_T' => 1,
+                        'AC_C_CONST' => 1,
+                        'AC_PROG_LEX' => 1,
                         'AC_CONFIG_FILES' => 1,
                         'include' => 1,
                         'AC_FUNC_SETVBUF_REVERSED' => 1,
                         'AC_PROG_INSTALL' => 1,
                         'AM_GNU_GETTEXT' => 1,
-                        'AC_CHECK_LIB' => 1,
                         'AC_FUNC_OBSTACK' => 1,
+                        'AC_CHECK_LIB' => 1,
                         'AC_FUNC_MALLOC' => 1,
                         'AC_FUNC_GETGROUPS' => 1,
                         'AC_FUNC_GETLOADAVG' => 1,
                         'AH_OUTPUT' => 1,
                         'AC_FUNC_FSEEKO' => 1,
                         'AM_PROG_CC_C_O' => 1,
-                        'AC_FUNC_MKTIME' => 1,
-                        'AC_CANONICAL_SYSTEM' => 1,
                         'AM_CONDITIONAL' => 1,
+                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AC_FUNC_MKTIME' => 1,
                         'AC_CONFIG_HEADERS' => 1,
                         'AC_HEADER_SYS_WAIT' => 1,
-                        'AC_PROG_LN_S' => 1,
                         'AC_FUNC_MEMCMP' => 1,
+                        'AC_PROG_LN_S' => 1,
                         'm4_include' => 1,
                         'AC_HEADER_DIRENT' => 1,
                         'AC_CHECK_FUNCS' => 1
@@ -262,55 +262,55 @@
                         'configure.ac'
                       ],
                       {
-                        'AM_PROG_F77_C_O' => 1,
                         '_LT_AC_TAGCONFIG' => 1,
-                        'm4_pattern_forbid' => 1,
+                        'AM_PROG_F77_C_O' => 1,
                         'AC_INIT' => 1,
-                        'AC_CANONICAL_TARGET' => 1,
+                        'm4_pattern_forbid' => 1,
                         '_AM_COND_IF' => 1,
-                        'AC_CONFIG_LIBOBJ_DIR' => 1,
+                        'AC_CANONICAL_TARGET' => 1,
                         'AC_SUBST' => 1,
-                        'AC_CANONICAL_HOST' => 1,
+                        'AC_CONFIG_LIBOBJ_DIR' => 1,
                         'AC_FC_SRCEXT' => 1,
+                        'AC_CANONICAL_HOST' => 1,
                         'AC_PROG_LIBTOOL' => 1,
                         'AM_INIT_AUTOMAKE' => 1,
-                        'AC_CONFIG_SUBDIRS' => 1,
                         'AM_PATH_GUILE' => 1,
+                        'AC_CONFIG_SUBDIRS' => 1,
                         'AM_AUTOMAKE_VERSION' => 1,
                         'LT_CONFIG_LTDL_DIR' => 1,
-                        'AC_CONFIG_LINKS' => 1,
                         'AC_REQUIRE_AUX_FILE' => 1,
-                        'LT_SUPPORTED_TAG' => 1,
+                        'AC_CONFIG_LINKS' => 1,
                         'm4_sinclude' => 1,
+                        'LT_SUPPORTED_TAG' => 1,
                         'AM_MAINTAINER_MODE' => 1,
                         'AM_NLS' => 1,
                         'AM_GNU_GETTEXT_INTL_SUBDIR' => 1,
-                        '_m4_warn' => 1,
                         'AM_MAKEFILE_INCLUDE' => 1,
+                        '_m4_warn' => 1,
                         'AM_PROG_CXX_C_O' => 1,
-                        '_AM_MAKEFILE_INCLUDE' => 1,
                         '_AM_COND_ENDIF' => 1,
+                        '_AM_MAKEFILE_INCLUDE' => 1,
                         'AM_ENABLE_MULTILIB' => 1,
                         'AM_SILENT_RULES' => 1,
                         'AM_PROG_MOC' => 1,
                         'AC_CONFIG_FILES' => 1,
-                        'LT_INIT' => 1,
                         'include' => 1,
-                        'AM_GNU_GETTEXT' => 1,
+                        'LT_INIT' => 1,
                         'AM_PROG_AR' => 1,
+                        'AM_GNU_GETTEXT' => 1,
                         'AC_LIBSOURCE' => 1,
-                        'AC_CANONICAL_BUILD' => 1,
                         'AM_PROG_FC_C_O' => 1,
+                        'AC_CANONICAL_BUILD' => 1,
                         'AC_FC_FREEFORM' => 1,
                         'AH_OUTPUT' => 1,
-                        'AC_CONFIG_AUX_DIR' => 1,
                         '_AM_SUBST_NOTMAKE' => 1,
-                        'm4_pattern_allow' => 1,
-                        'AM_PROG_CC_C_O' => 1,
+                        'AC_CONFIG_AUX_DIR' => 1,
                         'sinclude' => 1,
-                        'AM_CONDITIONAL' => 1,
-                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_PROG_CC_C_O' => 1,
+                        'm4_pattern_allow' => 1,
                         'AM_XGETTEXT_OPTION' => 1,
+                        'AC_CANONICAL_SYSTEM' => 1,
+                        'AM_CONDITIONAL' => 1,
                         'AC_CONFIG_HEADERS' => 1,
                         'AC_DEFINE_TRACE_LITERAL' => 1,
                         'AM_POT_TOOLS' => 1,

diff --git a/autom4te.cache/traces.3 b/autom4te.cache/traces.3
index a4e4eaea21704b1b66122890938cf1ec6bf1c3d1..ce3e4a29be457277d1c8e7be22d09f0955d92caa 100644 (file)
--- a/autom4te.cache/traces.3
+++ b/autom4te.cache/traces.3
@@ -177,12 +177,9 @@ m4trace:configure.ac:51: -1- AC_SUBST([host_os])
 m4trace:configure.ac:51: -1- AC_SUBST_TRACE([host_os])
 m4trace:configure.ac:51: -1- m4_pattern_allow([^host_os$])
 m4trace:configure.ac:52: -1- AC_CANONICAL_BUILD
-m4trace:configure.ac:105: -1- AC_SUBST([DEBUGGER_START_FILE])
-m4trace:configure.ac:105: -1- AC_SUBST_TRACE([DEBUGGER_START_FILE])
-m4trace:configure.ac:105: -1- m4_pattern_allow([^DEBUGGER_START_FILE$])
-m4trace:configure.ac:109: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
-You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
-configure.ac:109: the top level])
+m4trace:configure.ac:106: -1- AC_SUBST([DEBUGGER_START_FILE])
+m4trace:configure.ac:106: -1- AC_SUBST_TRACE([DEBUGGER_START_FILE])
+m4trace:configure.ac:106: -1- m4_pattern_allow([^DEBUGGER_START_FILE$])
 m4trace:configure.ac:110: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:110: the top level])
@@ -201,18 +198,18 @@ configure.ac:114: the top level])
 m4trace:configure.ac:115: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:115: the top level])
-m4trace:configure.ac:126: -1- AC_DEFINE_TRACE_LITERAL([USING_BASH_MALLOC])
-m4trace:configure.ac:126: -1- m4_pattern_allow([^USING_BASH_MALLOC$])
-m4trace:configure.ac:136: -1- AC_DEFINE_TRACE_LITERAL([DISABLE_MALLOC_WRAPPERS])
-m4trace:configure.ac:136: -1- m4_pattern_allow([^DISABLE_MALLOC_WRAPPERS$])
-m4trace:configure.ac:146: -1- AC_DEFINE_TRACE_LITERAL([AFS])
-m4trace:configure.ac:146: -1- m4_pattern_allow([^AFS$])
-m4trace:configure.ac:199: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
+m4trace:configure.ac:116: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
-configure.ac:199: the top level])
-m4trace:configure.ac:215: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
+configure.ac:116: the top level])
+m4trace:configure.ac:127: -1- AC_DEFINE_TRACE_LITERAL([USING_BASH_MALLOC])
+m4trace:configure.ac:127: -1- m4_pattern_allow([^USING_BASH_MALLOC$])
+m4trace:configure.ac:137: -1- AC_DEFINE_TRACE_LITERAL([DISABLE_MALLOC_WRAPPERS])
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+m4trace:configure.ac:200: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
-configure.ac:215: the top level])
+configure.ac:200: the top level])
 m4trace:configure.ac:216: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:216: the top level])
@@ -312,217 +309,220 @@ configure.ac:247: the top level])
 m4trace:configure.ac:248: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:248: the top level])
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+m4trace:configure.ac:249: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
-configure.ac:251: the top level])
+configure.ac:249: the top level])
 m4trace:configure.ac:252: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:252: the top level])
 m4trace:configure.ac:253: -2- _m4_warn([obsolete], [The macro `AC_HELP_STRING' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:209: AC_HELP_STRING is expanded from...
 configure.ac:253: the top level])
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-m4trace:configure.ac:533: -1- AC_DEFINE_TRACE_LITERAL([RL_VERSION_MAJOR])
-m4trace:configure.ac:533: -1- m4_pattern_allow([^RL_VERSION_MAJOR$])
-m4trace:configure.ac:533: -1- AH_OUTPUT([RL_VERSION_MAJOR], [/* major version of installed readline library */
+m4trace:configure.ac:534: -1- AC_DEFINE_TRACE_LITERAL([RL_VERSION_MAJOR])
+m4trace:configure.ac:534: -1- m4_pattern_allow([^RL_VERSION_MAJOR$])
+m4trace:configure.ac:534: -1- AH_OUTPUT([RL_VERSION_MAJOR], [/* major version of installed readline library */
 @%:@undef RL_VERSION_MAJOR])
-m4trace:configure.ac:533: -1- AC_DEFINE_TRACE_LITERAL([RL_VERSION_MINOR])
-m4trace:configure.ac:533: -1- m4_pattern_allow([^RL_VERSION_MINOR$])
-m4trace:configure.ac:533: -1- AH_OUTPUT([RL_VERSION_MINOR], [/* minor version of installed readline library */
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+m4trace:configure.ac:534: -1- AH_OUTPUT([RL_VERSION_MINOR], [/* minor version of installed readline library */
 @%:@undef RL_VERSION_MINOR])
-m4trace:configure.ac:533: -1- AC_SUBST([RL_VERSION])
-m4trace:configure.ac:533: -1- AC_SUBST_TRACE([RL_VERSION])
-m4trace:configure.ac:533: -1- m4_pattern_allow([^RL_VERSION$])
-m4trace:configure.ac:533: -1- AC_SUBST([RL_MAJOR])
-m4trace:configure.ac:533: -1- AC_SUBST_TRACE([RL_MAJOR])
-m4trace:configure.ac:533: -1- m4_pattern_allow([^RL_MAJOR$])
-m4trace:configure.ac:533: -1- AC_SUBST([RL_MINOR])
-m4trace:configure.ac:533: -1- AC_SUBST_TRACE([RL_MINOR])
-m4trace:configure.ac:533: -1- m4_pattern_allow([^RL_MINOR$])
-m4trace:configure.ac:546: -1- AC_DEFINE_TRACE_LITERAL([READLINE])
-m4trace:configure.ac:546: -1- m4_pattern_allow([^READLINE$])
-m4trace:configure.ac:581: -1- AC_DEFINE_TRACE_LITERAL([HISTORY])
-m4trace:configure.ac:581: -1- m4_pattern_allow([^HISTORY$])
-m4trace:configure.ac:584: -1- AC_DEFINE_TRACE_LITERAL([BANG_HISTORY])
-m4trace:configure.ac:584: -1- m4_pattern_allow([^BANG_HISTORY$])
-m4trace:configure.ac:614: -1- AC_SUBST([READLINE_LIB])
-m4trace:configure.ac:614: -1- AC_SUBST_TRACE([READLINE_LIB])
-m4trace:configure.ac:614: -1- m4_pattern_allow([^READLINE_LIB$])
-m4trace:configure.ac:615: -1- AC_SUBST([READLINE_DEP])
-m4trace:configure.ac:615: -1- AC_SUBST_TRACE([READLINE_DEP])
-m4trace:configure.ac:615: -1- m4_pattern_allow([^READLINE_DEP$])
-m4trace:configure.ac:616: -1- AC_SUBST([RL_LIBDIR])
-m4trace:configure.ac:616: -1- AC_SUBST_TRACE([RL_LIBDIR])
-m4trace:configure.ac:616: -1- m4_pattern_allow([^RL_LIBDIR$])
-m4trace:configure.ac:617: -1- AC_SUBST([RL_INCLUDEDIR])
-m4trace:configure.ac:617: -1- AC_SUBST_TRACE([RL_INCLUDEDIR])
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-m4trace:configure.ac:618: -1- AC_SUBST([RL_INCLUDE])
-m4trace:configure.ac:618: -1- AC_SUBST_TRACE([RL_INCLUDE])
-m4trace:configure.ac:618: -1- m4_pattern_allow([^RL_INCLUDE$])
-m4trace:configure.ac:619: -1- AC_SUBST([HISTORY_LIB])
-m4trace:configure.ac:619: -1- AC_SUBST_TRACE([HISTORY_LIB])
-m4trace:configure.ac:619: -1- m4_pattern_allow([^HISTORY_LIB$])
-m4trace:configure.ac:620: -1- AC_SUBST([HISTORY_DEP])
-m4trace:configure.ac:620: -1- AC_SUBST_TRACE([HISTORY_DEP])
-m4trace:configure.ac:620: -1- m4_pattern_allow([^HISTORY_DEP$])
-m4trace:configure.ac:621: -1- AC_SUBST([HIST_LIBDIR])
-m4trace:configure.ac:621: -1- AC_SUBST_TRACE([HIST_LIBDIR])
-m4trace:configure.ac:621: -1- m4_pattern_allow([^HIST_LIBDIR$])
-m4trace:configure.ac:622: -1- AC_SUBST([TILDE_LIB])
-m4trace:configure.ac:622: -1- AC_SUBST_TRACE([TILDE_LIB])
-m4trace:configure.ac:622: -1- m4_pattern_allow([^TILDE_LIB$])
-m4trace:configure.ac:627: -1- AC_REQUIRE_AUX_FILE([install-sh])
-m4trace:configure.ac:627: -1- AC_SUBST([INSTALL_PROGRAM])
-m4trace:configure.ac:627: -1- AC_SUBST_TRACE([INSTALL_PROGRAM])
-m4trace:configure.ac:627: -1- m4_pattern_allow([^INSTALL_PROGRAM$])
-m4trace:configure.ac:627: -1- AC_SUBST([INSTALL_SCRIPT])
-m4trace:configure.ac:627: -1- AC_SUBST_TRACE([INSTALL_SCRIPT])
-m4trace:configure.ac:627: -1- m4_pattern_allow([^INSTALL_SCRIPT$])
-m4trace:configure.ac:627: -1- AC_SUBST([INSTALL_DATA])
-m4trace:configure.ac:627: -1- AC_SUBST_TRACE([INSTALL_DATA])
-m4trace:configure.ac:627: -1- m4_pattern_allow([^INSTALL_DATA$])
-m4trace:configure.ac:628: -1- AC_SUBST([AR])
-m4trace:configure.ac:628: -1- AC_SUBST_TRACE([AR])
-m4trace:configure.ac:628: -1- m4_pattern_allow([^AR$])
-m4trace:configure.ac:632: -1- AC_SUBST([RANLIB])
-m4trace:configure.ac:632: -1- AC_SUBST_TRACE([RANLIB])
-m4trace:configure.ac:632: -1- m4_pattern_allow([^RANLIB$])
-m4trace:configure.ac:633: -1- AC_SUBST([YACC])
-m4trace:configure.ac:633: -1- AC_SUBST_TRACE([YACC])
-m4trace:configure.ac:633: -1- m4_pattern_allow([^YACC$])
-m4trace:configure.ac:633: -1- AC_SUBST([YACC])
-m4trace:configure.ac:633: -1- AC_SUBST_TRACE([YACC])
-m4trace:configure.ac:633: -1- m4_pattern_allow([^YACC$])
-m4trace:configure.ac:633: -1- AC_SUBST([YFLAGS])
-m4trace:configure.ac:633: -1- AC_SUBST_TRACE([YFLAGS])
-m4trace:configure.ac:633: -1- m4_pattern_allow([^YFLAGS$])
-m4trace:configure.ac:634: -1- AC_SUBST([SET_MAKE])
-m4trace:configure.ac:634: -1- AC_SUBST_TRACE([SET_MAKE])
-m4trace:configure.ac:634: -1- m4_pattern_allow([^SET_MAKE$])
-m4trace:configure.ac:640: -1- AC_SUBST([MAKE_SHELL])
-m4trace:configure.ac:640: -1- AC_SUBST_TRACE([MAKE_SHELL])
-m4trace:configure.ac:640: -1- m4_pattern_allow([^MAKE_SHELL$])
-m4trace:configure.ac:662: -1- AC_SUBST([SIZE])
-m4trace:configure.ac:662: -1- AC_SUBST_TRACE([SIZE])
-m4trace:configure.ac:662: -1- m4_pattern_allow([^SIZE$])
-m4trace:configure.ac:664: -1- m4_include([m4/stat-time.m4])
-m4trace:configure.ac:665: -1- m4_include([m4/timespec.m4])
-m4trace:configure.ac:668: -1- AC_DEFINE_TRACE_LITERAL([_GNU_SOURCE])
-m4trace:configure.ac:668: -1- m4_pattern_allow([^_GNU_SOURCE$])
-m4trace:configure.ac:671: -1- AC_DEFINE_TRACE_LITERAL([const])
-m4trace:configure.ac:671: -1- m4_pattern_allow([^const$])
-m4trace:configure.ac:671: -1- AH_OUTPUT([const], [/* Define to empty if `const\' does not conform to ANSI C. */
+m4trace:configure.ac:534: -1- AC_SUBST([RL_VERSION])
+m4trace:configure.ac:534: -1- AC_SUBST_TRACE([RL_VERSION])
+m4trace:configure.ac:534: -1- m4_pattern_allow([^RL_VERSION$])
+m4trace:configure.ac:534: -1- AC_SUBST([RL_MAJOR])
+m4trace:configure.ac:534: -1- AC_SUBST_TRACE([RL_MAJOR])
+m4trace:configure.ac:534: -1- m4_pattern_allow([^RL_MAJOR$])
+m4trace:configure.ac:534: -1- AC_SUBST([RL_MINOR])
+m4trace:configure.ac:534: -1- AC_SUBST_TRACE([RL_MINOR])
+m4trace:configure.ac:534: -1- m4_pattern_allow([^RL_MINOR$])
+m4trace:configure.ac:547: -1- AC_DEFINE_TRACE_LITERAL([READLINE])
+m4trace:configure.ac:547: -1- m4_pattern_allow([^READLINE$])
+m4trace:configure.ac:582: -1- AC_DEFINE_TRACE_LITERAL([HISTORY])
+m4trace:configure.ac:582: -1- m4_pattern_allow([^HISTORY$])
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+m4trace:configure.ac:585: -1- m4_pattern_allow([^BANG_HISTORY$])
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+m4trace:configure.ac:615: -1- m4_pattern_allow([^READLINE_LIB$])
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+m4trace:configure.ac:616: -1- AC_SUBST_TRACE([READLINE_DEP])
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+m4trace:configure.ac:617: -1- AC_SUBST_TRACE([RL_LIBDIR])
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+m4trace:configure.ac:618: -1- AC_SUBST([RL_INCLUDEDIR])
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+m4trace:configure.ac:620: -1- AC_SUBST([HISTORY_LIB])
+m4trace:configure.ac:620: -1- AC_SUBST_TRACE([HISTORY_LIB])
+m4trace:configure.ac:620: -1- m4_pattern_allow([^HISTORY_LIB$])
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+m4trace:configure.ac:628: -1- AC_SUBST_TRACE([INSTALL_PROGRAM])
+m4trace:configure.ac:628: -1- m4_pattern_allow([^INSTALL_PROGRAM$])
+m4trace:configure.ac:628: -1- AC_SUBST([INSTALL_SCRIPT])
+m4trace:configure.ac:628: -1- AC_SUBST_TRACE([INSTALL_SCRIPT])
+m4trace:configure.ac:628: -1- m4_pattern_allow([^INSTALL_SCRIPT$])
+m4trace:configure.ac:628: -1- AC_SUBST([INSTALL_DATA])
+m4trace:configure.ac:628: -1- AC_SUBST_TRACE([INSTALL_DATA])
+m4trace:configure.ac:628: -1- m4_pattern_allow([^INSTALL_DATA$])
+m4trace:configure.ac:629: -1- AC_SUBST([AR])
+m4trace:configure.ac:629: -1- AC_SUBST_TRACE([AR])
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+m4trace:configure.ac:633: -1- AC_SUBST([RANLIB])
+m4trace:configure.ac:633: -1- AC_SUBST_TRACE([RANLIB])
+m4trace:configure.ac:633: -1- m4_pattern_allow([^RANLIB$])
+m4trace:configure.ac:634: -1- AC_SUBST([YACC])
+m4trace:configure.ac:634: -1- AC_SUBST_TRACE([YACC])
+m4trace:configure.ac:634: -1- m4_pattern_allow([^YACC$])
+m4trace:configure.ac:634: -1- AC_SUBST([YACC])
+m4trace:configure.ac:634: -1- AC_SUBST_TRACE([YACC])
+m4trace:configure.ac:634: -1- m4_pattern_allow([^YACC$])
+m4trace:configure.ac:634: -1- AC_SUBST([YFLAGS])
+m4trace:configure.ac:634: -1- AC_SUBST_TRACE([YFLAGS])
+m4trace:configure.ac:634: -1- m4_pattern_allow([^YFLAGS$])
+m4trace:configure.ac:635: -1- AC_SUBST([SET_MAKE])
+m4trace:configure.ac:635: -1- AC_SUBST_TRACE([SET_MAKE])
+m4trace:configure.ac:635: -1- m4_pattern_allow([^SET_MAKE$])
+m4trace:configure.ac:641: -1- AC_SUBST([MAKE_SHELL])
+m4trace:configure.ac:641: -1- AC_SUBST_TRACE([MAKE_SHELL])
+m4trace:configure.ac:641: -1- m4_pattern_allow([^MAKE_SHELL$])
+m4trace:configure.ac:663: -1- AC_SUBST([SIZE])
+m4trace:configure.ac:663: -1- AC_SUBST_TRACE([SIZE])
+m4trace:configure.ac:663: -1- m4_pattern_allow([^SIZE$])
+m4trace:configure.ac:665: -1- m4_include([m4/stat-time.m4])
+m4trace:configure.ac:666: -1- m4_include([m4/timespec.m4])
+m4trace:configure.ac:669: -1- AC_DEFINE_TRACE_LITERAL([_GNU_SOURCE])
+m4trace:configure.ac:669: -1- m4_pattern_allow([^_GNU_SOURCE$])
+m4trace:configure.ac:672: -1- AC_DEFINE_TRACE_LITERAL([const])
+m4trace:configure.ac:672: -1- m4_pattern_allow([^const$])
+m4trace:configure.ac:672: -1- AH_OUTPUT([const], [/* Define to empty if `const\' does not conform to ANSI C. */
 @%:@undef const])
-m4trace:configure.ac:672: -1- AH_OUTPUT([inline], [/* Define to `__inline__\' or `__inline\' if that\'s what the C compiler
+m4trace:configure.ac:673: -1- AH_OUTPUT([inline], [/* Define to `__inline__\' or `__inline\' if that\'s what the C compiler
    calls it, or to nothing if \'inline\' is not supported under any name.  */
 #ifndef __cplusplus
 #undef inline
 #endif])
-m4trace:configure.ac:673: -1- AH_OUTPUT([WORDS_BIGENDIAN], [/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+m4trace:configure.ac:674: -1- AH_OUTPUT([WORDS_BIGENDIAN], [/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
    significant byte first (like Motorola and SPARC, unlike Intel). */
 #if defined AC_APPLE_UNIVERSAL_BUILD
 # if defined __BIG_ENDIAN__
@@ -718,49 +718,49 @@ m4trace:configure.ac:673: -1- AH_OUTPUT([WORDS_BIGENDIAN], [/* Define WORDS_BIGE
 #  undef WORDS_BIGENDIAN
 # endif
 #endif])
-m4trace:configure.ac:673: -1- AC_DEFINE_TRACE_LITERAL([WORDS_BIGENDIAN])
-m4trace:configure.ac:673: -1- m4_pattern_allow([^WORDS_BIGENDIAN$])
-m4trace:configure.ac:673: -1- AC_DEFINE_TRACE_LITERAL([AC_APPLE_UNIVERSAL_BUILD])
-m4trace:configure.ac:673: -1- m4_pattern_allow([^AC_APPLE_UNIVERSAL_BUILD$])
-m4trace:configure.ac:673: -1- AH_OUTPUT([AC_APPLE_UNIVERSAL_BUILD], [/* Define if building universal (internal helper macro) */
+m4trace:configure.ac:674: -1- AC_DEFINE_TRACE_LITERAL([WORDS_BIGENDIAN])
+m4trace:configure.ac:674: -1- m4_pattern_allow([^WORDS_BIGENDIAN$])
+m4trace:configure.ac:674: -1- AC_DEFINE_TRACE_LITERAL([AC_APPLE_UNIVERSAL_BUILD])
+m4trace:configure.ac:674: -1- m4_pattern_allow([^AC_APPLE_UNIVERSAL_BUILD$])
+m4trace:configure.ac:674: -1- AH_OUTPUT([AC_APPLE_UNIVERSAL_BUILD], [/* Define if building universal (internal helper macro) */
 @%:@undef AC_APPLE_UNIVERSAL_BUILD])
-m4trace:configure.ac:674: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRINGIZE])
-m4trace:configure.ac:674: -1- m4_pattern_allow([^HAVE_STRINGIZE$])
-m4trace:configure.ac:674: -1- AH_OUTPUT([HAVE_STRINGIZE], [/* Define to 1 if cpp supports the ANSI @%:@ stringizing operator. */
+m4trace:configure.ac:675: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRINGIZE])
+m4trace:configure.ac:675: -1- m4_pattern_allow([^HAVE_STRINGIZE$])
+m4trace:configure.ac:675: -1- AH_OUTPUT([HAVE_STRINGIZE], [/* Define to 1 if cpp supports the ANSI @%:@ stringizing operator. */
 @%:@undef HAVE_STRINGIZE])
-m4trace:configure.ac:675: -1- _m4_warn([obsolete], [The macro `AC_C_LONG_DOUBLE' is obsolete.
+m4trace:configure.ac:676: -1- _m4_warn([obsolete], [The macro `AC_C_LONG_DOUBLE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/types.m4:451: AC_C_LONG_DOUBLE is expanded from...
-configure.ac:675: the top level])
-m4trace:configure.ac:675: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LONG_DOUBLE_WIDER])
-m4trace:configure.ac:675: -1- m4_pattern_allow([^HAVE_LONG_DOUBLE_WIDER$])
-m4trace:configure.ac:675: -1- AH_OUTPUT([HAVE_LONG_DOUBLE_WIDER], [/* Define to 1 if the type `long double\' works and has more range or precision
+configure.ac:676: the top level])
+m4trace:configure.ac:676: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LONG_DOUBLE_WIDER])
+m4trace:configure.ac:676: -1- m4_pattern_allow([^HAVE_LONG_DOUBLE_WIDER$])
+m4trace:configure.ac:676: -1- AH_OUTPUT([HAVE_LONG_DOUBLE_WIDER], [/* Define to 1 if the type `long double\' works and has more range or precision
    than `double\'. */
 @%:@undef HAVE_LONG_DOUBLE_WIDER])
-m4trace:configure.ac:675: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LONG_DOUBLE])
-m4trace:configure.ac:675: -1- m4_pattern_allow([^HAVE_LONG_DOUBLE$])
-m4trace:configure.ac:675: -1- AH_OUTPUT([HAVE_LONG_DOUBLE], [/* Define to 1 if the type `long double\' works and has more range or precision
+m4trace:configure.ac:676: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LONG_DOUBLE])
+m4trace:configure.ac:676: -1- m4_pattern_allow([^HAVE_LONG_DOUBLE$])
+m4trace:configure.ac:676: -1- AH_OUTPUT([HAVE_LONG_DOUBLE], [/* Define to 1 if the type `long double\' works and has more range or precision
    than `double\'. */
 @%:@undef HAVE_LONG_DOUBLE])
-m4trace:configure.ac:676: -1- AC_DEFINE_TRACE_LITERAL([PROTOTYPES])
-m4trace:configure.ac:676: -1- m4_pattern_allow([^PROTOTYPES$])
-m4trace:configure.ac:676: -1- AH_OUTPUT([PROTOTYPES], [/* Define to 1 if the C compiler supports function prototypes. */
+m4trace:configure.ac:677: -1- AC_DEFINE_TRACE_LITERAL([PROTOTYPES])
+m4trace:configure.ac:677: -1- m4_pattern_allow([^PROTOTYPES$])
+m4trace:configure.ac:677: -1- AH_OUTPUT([PROTOTYPES], [/* Define to 1 if the C compiler supports function prototypes. */
 @%:@undef PROTOTYPES])
-m4trace:configure.ac:676: -1- AC_DEFINE_TRACE_LITERAL([__PROTOTYPES])
-m4trace:configure.ac:676: -1- m4_pattern_allow([^__PROTOTYPES$])
-m4trace:configure.ac:676: -1- AH_OUTPUT([__PROTOTYPES], [/* Define like PROTOTYPES; this can be used by system headers. */
+m4trace:configure.ac:677: -1- AC_DEFINE_TRACE_LITERAL([__PROTOTYPES])
+m4trace:configure.ac:677: -1- m4_pattern_allow([^__PROTOTYPES$])
+m4trace:configure.ac:677: -1- AH_OUTPUT([__PROTOTYPES], [/* Define like PROTOTYPES; this can be used by system headers. */
 @%:@undef __PROTOTYPES])
-m4trace:configure.ac:677: -1- AH_OUTPUT([__CHAR_UNSIGNED__], [/* Define to 1 if type `char\' is unsigned and you are not using gcc.  */
+m4trace:configure.ac:678: -1- AH_OUTPUT([__CHAR_UNSIGNED__], [/* Define to 1 if type `char\' is unsigned and you are not using gcc.  */
 #ifndef __CHAR_UNSIGNED__
 # undef __CHAR_UNSIGNED__
 #endif])
-m4trace:configure.ac:677: -1- AC_DEFINE_TRACE_LITERAL([__CHAR_UNSIGNED__])
-m4trace:configure.ac:677: -1- m4_pattern_allow([^__CHAR_UNSIGNED__$])
-m4trace:configure.ac:678: -1- AC_DEFINE_TRACE_LITERAL([volatile])
-m4trace:configure.ac:678: -1- m4_pattern_allow([^volatile$])
-m4trace:configure.ac:678: -1- AH_OUTPUT([volatile], [/* Define to empty if the keyword `volatile\' does not work. Warning: valid
+m4trace:configure.ac:678: -1- AC_DEFINE_TRACE_LITERAL([__CHAR_UNSIGNED__])
+m4trace:configure.ac:678: -1- m4_pattern_allow([^__CHAR_UNSIGNED__$])
+m4trace:configure.ac:679: -1- AC_DEFINE_TRACE_LITERAL([volatile])
+m4trace:configure.ac:679: -1- m4_pattern_allow([^volatile$])
+m4trace:configure.ac:679: -1- AH_OUTPUT([volatile], [/* Define to empty if the keyword `volatile\' does not work. Warning: valid
    code using `volatile\' can become incorrect without. Disable with care. */
 @%:@undef volatile])
-m4trace:configure.ac:679: -1- AH_OUTPUT([restrict], [/* Define to the equivalent of the C99 \'restrict\' keyword, or to
+m4trace:configure.ac:680: -1- AH_OUTPUT([restrict], [/* Define to the equivalent of the C99 \'restrict\' keyword, or to
    nothing if this is not supported.  Do not define if restrict is
    supported directly.  */
 #undef restrict
@@ -773,93 +773,93 @@ m4trace:configure.ac:679: -1- AH_OUTPUT([restrict], [/* Define to the equivalent
 # define _Restrict
 # define __restrict__
 #endif])
-m4trace:configure.ac:679: -1- AC_DEFINE_TRACE_LITERAL([restrict])
-m4trace:configure.ac:679: -1- m4_pattern_allow([^restrict$])
-m4trace:configure.ac:679: -1- AC_DEFINE_TRACE_LITERAL([restrict])
-m4trace:configure.ac:679: -1- m4_pattern_allow([^restrict$])
-m4trace:configure.ac:682: -1- AM_GNU_GETTEXT([no-libtool], [need-ngettext], [lib/intl])
-m4trace:configure.ac:682: -1- AC_SUBST([MKINSTALLDIRS])
-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([MKINSTALLDIRS])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^MKINSTALLDIRS$])
-m4trace:configure.ac:682: -1- AM_NLS
-m4trace:configure.ac:682: -1- AC_SUBST([USE_NLS])
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-m4trace:configure.ac:682: -1- m4_pattern_allow([^GMSGFMT$])
-m4trace:configure.ac:682: -1- AC_SUBST([XGETTEXT])
-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([XGETTEXT])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^XGETTEXT$])
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-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([MSGMERGE])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^MSGMERGE$])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_OUTPUT_COMMANDS' is obsolete.
+m4trace:configure.ac:680: -1- AC_DEFINE_TRACE_LITERAL([restrict])
+m4trace:configure.ac:680: -1- m4_pattern_allow([^restrict$])
+m4trace:configure.ac:680: -1- AC_DEFINE_TRACE_LITERAL([restrict])
+m4trace:configure.ac:680: -1- m4_pattern_allow([^restrict$])
+m4trace:configure.ac:683: -1- AM_GNU_GETTEXT([no-libtool], [need-ngettext], [lib/intl])
+m4trace:configure.ac:683: -1- AC_SUBST([MKINSTALLDIRS])
+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([MKINSTALLDIRS])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^MKINSTALLDIRS$])
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+m4trace:configure.ac:683: -1- AC_SUBST([USE_NLS])
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+m4trace:configure.ac:683: -1- m4_pattern_allow([^MSGFMT$])
+m4trace:configure.ac:683: -1- AC_SUBST([GMSGFMT])
+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([GMSGFMT])
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+m4trace:configure.ac:683: -1- m4_pattern_allow([^XGETTEXT$])
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+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([MSGMERGE])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^MSGMERGE$])
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_OUTPUT_COMMANDS' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/status.m4:1028: AC_OUTPUT_COMMANDS is expanded from...
 aclocal.m4:3707: AM_PO_SUBDIRS is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([off_t])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^off_t$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([off_t], [/* Define to `long int\' if <sys/types.h> does not define. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([off_t])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^off_t$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([off_t], [/* Define to `long int\' if <sys/types.h> does not define. */
 @%:@undef off_t])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([size_t])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^size_t$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([size_t], [/* Define to `unsigned int\' if <sys/types.h> does not define. */
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([size_t])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^size_t$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([size_t], [/* Define to `unsigned int\' if <sys/types.h> does not define. */
 @%:@undef size_t])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ALLOCA_H])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_ALLOCA_H$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_ALLOCA_H], [/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ALLOCA_H])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_ALLOCA_H$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_ALLOCA_H], [/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
    */
 @%:@undef HAVE_ALLOCA_H])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ALLOCA])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_ALLOCA$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_ALLOCA], [/* Define to 1 if you have `alloca\', as a function or macro. */
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ALLOCA])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_ALLOCA$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_ALLOCA], [/* Define to 1 if you have `alloca\', as a function or macro. */
 @%:@undef HAVE_ALLOCA])
-m4trace:configure.ac:682: -1- AC_LIBSOURCE([alloca.c])
-m4trace:configure.ac:682: -1- AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])
-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([ALLOCA])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^ALLOCA$])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([C_ALLOCA])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^C_ALLOCA$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([C_ALLOCA], [/* Define to 1 if using `alloca.c\'. */
+m4trace:configure.ac:683: -1- AC_LIBSOURCE([alloca.c])
+m4trace:configure.ac:683: -1- AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])
+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([ALLOCA])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^ALLOCA$])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([C_ALLOCA])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^C_ALLOCA$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([C_ALLOCA], [/* Define to 1 if using `alloca.c\'. */
 @%:@undef C_ALLOCA])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([CRAY_STACKSEG_END])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^CRAY_STACKSEG_END$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([CRAY_STACKSEG_END], [/* Define to one of `_getb67\', `GETB67\', `getb67\' for Cray-2 and Cray-YMP
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+m4trace:configure.ac:683: -1- m4_pattern_allow([^CRAY_STACKSEG_END$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([CRAY_STACKSEG_END], [/* Define to one of `_getb67\', `GETB67\', `getb67\' for Cray-2 and Cray-YMP
    systems. This function is required for `alloca.c\' support on those systems.
    */
 @%:@undef CRAY_STACKSEG_END])
-m4trace:configure.ac:682: -1- AH_OUTPUT([STACK_DIRECTION], [/* If using the C implementation of alloca, define if you know the
+m4trace:configure.ac:683: -1- AH_OUTPUT([STACK_DIRECTION], [/* If using the C implementation of alloca, define if you know the
    direction of stack growth for your system; otherwise it will be
    automatically deduced at runtime.
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        STACK_DIRECTION < 0 => grows toward lower addresses
        STACK_DIRECTION = 0 => direction of growth unknown */
 @%:@undef STACK_DIRECTION])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([STACK_DIRECTION])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^STACK_DIRECTION$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STDLIB_H], [/* Define to 1 if you have the <stdlib.h> header file. */
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([STACK_DIRECTION])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^STACK_DIRECTION$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STDLIB_H], [/* Define to 1 if you have the <stdlib.h> header file. */
 @%:@undef HAVE_STDLIB_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_UNISTD_H], [/* Define to 1 if you have the <unistd.h> header file. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_UNISTD_H], [/* Define to 1 if you have the <unistd.h> header file. */
 @%:@undef HAVE_UNISTD_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_SYS_PARAM_H], [/* Define to 1 if you have the <sys/param.h> header file. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_SYS_PARAM_H], [/* Define to 1 if you have the <sys/param.h> header file. */
 @%:@undef HAVE_SYS_PARAM_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_GETPAGESIZE], [/* Define to 1 if you have the `getpagesize\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_GETPAGESIZE], [/* Define to 1 if you have the `getpagesize\' function. */
 @%:@undef HAVE_GETPAGESIZE])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_GETPAGESIZE])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_GETPAGESIZE$])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_MMAP])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_MMAP$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_MMAP], [/* Define to 1 if you have a working `mmap\' system call. */
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_GETPAGESIZE])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_GETPAGESIZE$])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_MMAP])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_MMAP$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_MMAP], [/* Define to 1 if you have a working `mmap\' system call. */
 @%:@undef HAVE_MMAP])
-m4trace:configure.ac:682: -1- AC_SUBST([GLIBC21])
-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([GLIBC21])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^GLIBC21$])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
+m4trace:configure.ac:683: -1- AC_SUBST([GLIBC21])
+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([GLIBC21])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^GLIBC21$])
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -867,12 +867,12 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is
 aclocal.m4:2613: gt_INTDIV0 is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([INTDIV0_RAISES_SIGFPE])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^INTDIV0_RAISES_SIGFPE$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([INTDIV0_RAISES_SIGFPE], [/* Define if integer division by zero raises signal SIGFPE. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([INTDIV0_RAISES_SIGFPE])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^INTDIV0_RAISES_SIGFPE$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([INTDIV0_RAISES_SIGFPE], [/* Define if integer division by zero raises signal SIGFPE. */
 @%:@undef INTDIV0_RAISES_SIGFPE])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -881,13 +881,13 @@ aclocal.m4:2715: jm_AC_HEADER_INTTYPES_H is expanded from...
 aclocal.m4:4016: jm_AC_TYPE_UINTMAX_T is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_INTTYPES_H_WITH_UINTMAX])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_INTTYPES_H_WITH_UINTMAX$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_INTTYPES_H_WITH_UINTMAX], [/* Define if <inttypes.h> exists, doesn\'t clash with <sys/types.h>, and
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_INTTYPES_H_WITH_UINTMAX])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_INTTYPES_H_WITH_UINTMAX$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_INTTYPES_H_WITH_UINTMAX], [/* Define if <inttypes.h> exists, doesn\'t clash with <sys/types.h>, and
    declares uintmax_t. */
 @%:@undef HAVE_INTTYPES_H_WITH_UINTMAX])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -896,13 +896,13 @@ aclocal.m4:3986: jm_AC_HEADER_STDINT_H is expanded from...
 aclocal.m4:4016: jm_AC_TYPE_UINTMAX_T is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STDINT_H_WITH_UINTMAX])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_STDINT_H_WITH_UINTMAX$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STDINT_H_WITH_UINTMAX], [/* Define if <stdint.h> exists, doesn\'t clash with <sys/types.h>, and declares
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STDINT_H_WITH_UINTMAX])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_STDINT_H_WITH_UINTMAX$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STDINT_H_WITH_UINTMAX], [/* Define if <stdint.h> exists, doesn\'t clash with <sys/types.h>, and declares
    uintmax_t. */
 @%:@undef HAVE_STDINT_H_WITH_UINTMAX])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -911,21 +911,21 @@ aclocal.m4:4043: jm_AC_TYPE_UNSIGNED_LONG_LONG is expanded from...
 aclocal.m4:4016: jm_AC_TYPE_UINTMAX_T is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UNSIGNED_LONG_LONG])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_UNSIGNED_LONG_LONG$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_UNSIGNED_LONG_LONG], [/* Define if you have the unsigned long long type. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UNSIGNED_LONG_LONG])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_UNSIGNED_LONG_LONG$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_UNSIGNED_LONG_LONG], [/* Define if you have the unsigned long long type. */
 @%:@undef HAVE_UNSIGNED_LONG_LONG])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([uintmax_t])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^uintmax_t$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([uintmax_t], [/* Define to unsigned long or unsigned long long if <stdint.h> and
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([uintmax_t])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^uintmax_t$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([uintmax_t], [/* Define to unsigned long or unsigned long long if <stdint.h> and
    <inttypes.h> don\'t define. */
 @%:@undef uintmax_t])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UINTMAX_T])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_UINTMAX_T$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_UINTMAX_T], [/* Define if you have the \'uintmax_t\' type in <stdint.h> or <inttypes.h>. */
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UINTMAX_T])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_UINTMAX_T$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_UINTMAX_T], [/* Define if you have the \'uintmax_t\' type in <stdint.h> or <inttypes.h>. */
 @%:@undef HAVE_UINTMAX_T])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -933,12 +933,12 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE
 aclocal.m4:2688: gt_HEADER_INTTYPES_H is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_INTTYPES_H])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_INTTYPES_H$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_INTTYPES_H], [/* Define if <inttypes.h> exists and doesn\'t clash with <sys/types.h>. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_INTTYPES_H])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_INTTYPES_H$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_INTTYPES_H], [/* Define if <inttypes.h> exists and doesn\'t clash with <sys/types.h>. */
 @%:@undef HAVE_INTTYPES_H])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -946,78 +946,78 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE
 aclocal.m4:2743: gt_INTTYPES_PRI is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([PRI_MACROS_BROKEN])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^PRI_MACROS_BROKEN$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([PRI_MACROS_BROKEN], [/* Define if <inttypes.h> exists and defines unusable PRI* macros. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([PRI_MACROS_BROKEN])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^PRI_MACROS_BROKEN$])
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-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_ARGZ_H], [/* Define to 1 if you have the <argz.h> header file. */
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 @%:@undef HAVE_ARGZ_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_LIMITS_H], [/* Define to 1 if you have the <limits.h> header file. */
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 @%:@undef HAVE_LIMITS_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_LOCALE_H], [/* Define to 1 if you have the <locale.h> header file. */
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 @%:@undef HAVE_LOCALE_H])
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 @%:@undef HAVE_NL_TYPES_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_MALLOC_H], [/* Define to 1 if you have the <malloc.h> header file. */
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 @%:@undef HAVE_MALLOC_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STDDEF_H], [/* Define to 1 if you have the <stddef.h> header file. */
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 @%:@undef HAVE_STDDEF_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STDLIB_H], [/* Define to 1 if you have the <stdlib.h> header file. */
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 @%:@undef HAVE_STDLIB_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STRING_H], [/* Define to 1 if you have the <string.h> header file. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STRING_H], [/* Define to 1 if you have the <string.h> header file. */
 @%:@undef HAVE_STRING_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_UNISTD_H], [/* Define to 1 if you have the <unistd.h> header file. */
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 @%:@undef HAVE_UNISTD_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_SYS_PARAM_H], [/* Define to 1 if you have the <sys/param.h> header file. */
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 @%:@undef HAVE_SYS_PARAM_H])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_FEOF_UNLOCKED], [/* Define to 1 if you have the `feof_unlocked\' function. */
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 @%:@undef HAVE_FEOF_UNLOCKED])
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 @%:@undef HAVE_GETC_UNLOCKED])
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 @%:@undef HAVE_GETCWD])
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 @%:@undef HAVE_GETEGID])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_GETEUID], [/* Define to 1 if you have the `geteuid\' function. */
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 @%:@undef HAVE_GETEUID])
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 @%:@undef HAVE_GETGID])
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 @%:@undef HAVE_GETUID])
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 @%:@undef HAVE_MEMPCPY])
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 @%:@undef HAVE_MUNMAP])
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 @%:@undef HAVE_PUTENV])
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 @%:@undef HAVE_SETENV])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_SETLOCALE], [/* Define to 1 if you have the `setlocale\' function. */
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 @%:@undef HAVE_SETLOCALE])
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 @%:@undef HAVE_LOCALECONV])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STPCPY], [/* Define to 1 if you have the `stpcpy\' function. */
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 @%:@undef HAVE_STPCPY])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STRCASECMP], [/* Define to 1 if you have the `strcasecmp\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STRCASECMP], [/* Define to 1 if you have the `strcasecmp\' function. */
 @%:@undef HAVE_STRCASECMP])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STRDUP], [/* Define to 1 if you have the `strdup\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STRDUP], [/* Define to 1 if you have the `strdup\' function. */
 @%:@undef HAVE_STRDUP])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_STRTOUL], [/* Define to 1 if you have the `strtoul\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_STRTOUL], [/* Define to 1 if you have the `strtoul\' function. */
 @%:@undef HAVE_STRTOUL])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_TSEARCH], [/* Define to 1 if you have the `tsearch\' function. */
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 @%:@undef HAVE_TSEARCH])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE___ARGZ_COUNT], [/* Define to 1 if you have the `__argz_count\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE___ARGZ_COUNT], [/* Define to 1 if you have the `__argz_count\' function. */
 @%:@undef HAVE___ARGZ_COUNT])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE___ARGZ_STRINGIFY], [/* Define to 1 if you have the `__argz_stringify\' function. */
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 @%:@undef HAVE___ARGZ_STRINGIFY])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE___ARGZ_NEXT], [/* Define to 1 if you have the `__argz_next\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE___ARGZ_NEXT], [/* Define to 1 if you have the `__argz_next\' function. */
 @%:@undef HAVE___ARGZ_NEXT])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE___FSETLOCKING], [/* Define to 1 if you have the `__fsetlocking\' function. */
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE___FSETLOCKING], [/* Define to 1 if you have the `__fsetlocking\' function. */
 @%:@undef HAVE___FSETLOCKING])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -1026,8 +1026,8 @@ aclocal.m4:2521: AM_ICONV_LINK is expanded from...
 aclocal.m4:2576: AM_ICONV is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -1036,30 +1036,30 @@ aclocal.m4:2521: AM_ICONV_LINK is expanded from...
 aclocal.m4:2576: AM_ICONV is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
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-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ICONV])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_ICONV$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_ICONV], [/* Define if you have the iconv() function. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_ICONV])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_ICONV$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_ICONV], [/* Define if you have the iconv() function. */
 @%:@undef HAVE_ICONV])
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-m4trace:configure.ac:682: -1- AC_SUBST_TRACE([LIBICONV])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^LIBICONV$])
-m4trace:configure.ac:682: -1- AC_SUBST([LTLIBICONV])
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-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
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+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([LIBICONV])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^LIBICONV$])
+m4trace:configure.ac:683: -1- AC_SUBST([LTLIBICONV])
+m4trace:configure.ac:683: -1- AC_SUBST_TRACE([LTLIBICONV])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^LTLIBICONV$])
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 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:2576: AM_ICONV is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
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-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([ICONV_CONST])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^ICONV_CONST$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([ICONV_CONST], [/* Define as const if the declaration of iconv() needs const. */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([ICONV_CONST])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^ICONV_CONST$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([ICONV_CONST], [/* Define as const if the declaration of iconv() needs const. */
 @%:@undef ICONV_CONST])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -1067,12 +1067,12 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is
 aclocal.m4:2040: AM_LANGINFO_CODESET is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
-configure.ac:682: the top level])
-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LANGINFO_CODESET])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_LANGINFO_CODESET$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_LANGINFO_CODESET], [/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
+configure.ac:683: the top level])
+m4trace:configure.ac:683: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LANGINFO_CODESET])
+m4trace:configure.ac:683: -1- m4_pattern_allow([^HAVE_LANGINFO_CODESET$])
+m4trace:configure.ac:683: -1- AH_OUTPUT([HAVE_LANGINFO_CODESET], [/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
 @%:@undef HAVE_LANGINFO_CODESET])
-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
+m4trace:configure.ac:683: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
@@ -1080,588 +1080,581 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is
 aclocal.m4:2810: AM_LC_MESSAGES is expanded from...
 aclocal.m4:2399: AM_INTL_SUBDIR is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
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-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([HAVE_LC_MESSAGES])
-m4trace:configure.ac:682: -1- m4_pattern_allow([^HAVE_LC_MESSAGES$])
-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_LC_MESSAGES], [/* Define if your <locale.h> file defines LC_MESSAGES. */
+configure.ac:683: the top level])
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 @%:@undef HAVE_LC_MESSAGES])
-m4trace:configure.ac:682: -1- AC_SUBST([INTLBISON])
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-m4trace:configure.ac:682: -1- AM_NLS
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-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
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+m4trace:configure.ac:683: -1- m4_pattern_allow([^USE_NLS$])
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 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 ../../lib/autoconf/general.m4:2053: AC_CACHE_CHECK is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
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-m4trace:configure.ac:682: -1- _m4_warn([obsolete], [The macro `AC_TRY_LINK' is obsolete.
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 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 ../../lib/autoconf/general.m4:2053: AC_CACHE_CHECK is expanded from...
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 You should run autoupdate.], [../../lib/autoconf/general.m4:2688: AC_TRY_LINK is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 ../../lib/autoconf/general.m4:2053: AC_CACHE_CHECK is expanded from...
 aclocal.m4:2111: AM_GNU_GETTEXT is expanded from...
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-m4trace:configure.ac:682: -1- AC_DEFINE_TRACE_LITERAL([ENABLE_NLS])
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-m4trace:configure.ac:682: -1- AH_OUTPUT([HAVE_DCGETTEXT], [/* Define if the GNU dcgettext() function is already present or preinstalled.
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-m4trace:configure.ac:682: -1- AC_SUBST([BUILD_INCLUDED_LIBINTL])
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 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2662: _AC_LINK_IFELSE is expanded from...
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 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
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 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2662: _AC_LINK_IFELSE is expanded from...
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 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
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 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:167: BASH_DECL_UNDER_SYS_SIGLIST is expanded from...
 aclocal.m4:184: BASH_UNDER_SYS_SIGLIST is expanded from...
-configure.ac:924: the top level])
-m4trace:configure.ac:924: -1- AC_DEFINE_TRACE_LITERAL([UNDER_SYS_SIGLIST_DECLARED])
-m4trace:configure.ac:924: -1- m4_pattern_allow([^UNDER_SYS_SIGLIST_DECLARED$])
-m4trace:configure.ac:924: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
+configure.ac:925: the top level])
+m4trace:configure.ac:925: -1- AC_DEFINE_TRACE_LITERAL([UNDER_SYS_SIGLIST_DECLARED])
+m4trace:configure.ac:925: -1- m4_pattern_allow([^UNDER_SYS_SIGLIST_DECLARED$])
+m4trace:configure.ac:925: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:184: BASH_UNDER_SYS_SIGLIST is expanded from...
-configure.ac:924: the top level])
-m4trace:configure.ac:924: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UNDER_SYS_SIGLIST])
-m4trace:configure.ac:924: -1- m4_pattern_allow([^HAVE_UNDER_SYS_SIGLIST$])
-m4trace:configure.ac:927: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:925: the top level])
+m4trace:configure.ac:925: -1- AC_DEFINE_TRACE_LITERAL([HAVE_UNDER_SYS_SIGLIST])
+m4trace:configure.ac:925: -1- m4_pattern_allow([^HAVE_UNDER_SYS_SIGLIST$])
+m4trace:configure.ac:928: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:366: BASH_TYPE_SIGHANDLER is expanded from...
-configure.ac:927: the top level])
-m4trace:configure.ac:927: -1- AC_DEFINE_TRACE_LITERAL([VOID_SIGHANDLER])
-m4trace:configure.ac:927: -1- m4_pattern_allow([^VOID_SIGHANDLER$])
-m4trace:configure.ac:928: -1- AC_DEFINE_TRACE_LITERAL([clock_t])
-m4trace:configure.ac:928: -1- m4_pattern_allow([^clock_t$])
-m4trace:configure.ac:929: -1- AC_DEFINE_TRACE_LITERAL([sigset_t])
-m4trace:configure.ac:929: -1- m4_pattern_allow([^sigset_t$])
-m4trace:configure.ac:930: -1- AC_DEFINE_TRACE_LITERAL([HAVE_QUAD_T])
-m4trace:configure.ac:930: -1- m4_pattern_allow([^HAVE_QUAD_T$])
-m4trace:configure.ac:930: -1- AC_DEFINE_TRACE_LITERAL([quad_t])
-m4trace:configure.ac:930: -1- m4_pattern_allow([^quad_t$])
-m4trace:configure.ac:931: -1- AC_DEFINE_TRACE_LITERAL([intmax_t])
-m4trace:configure.ac:931: -1- m4_pattern_allow([^intmax_t$])
-m4trace:configure.ac:932: -1- AC_DEFINE_TRACE_LITERAL([uintmax_t])
-m4trace:configure.ac:932: -1- m4_pattern_allow([^uintmax_t$])
-m4trace:configure.ac:934: -1- AC_DEFINE_TRACE_LITERAL([HAVE_SOCKLEN_T])
-m4trace:configure.ac:934: -1- m4_pattern_allow([^HAVE_SOCKLEN_T$])
-m4trace:configure.ac:934: -1- AC_DEFINE_TRACE_LITERAL([socklen_t])
-m4trace:configure.ac:934: -1- m4_pattern_allow([^socklen_t$])
-m4trace:configure.ac:936: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:928: the top level])
+m4trace:configure.ac:928: -1- AC_DEFINE_TRACE_LITERAL([VOID_SIGHANDLER])
+m4trace:configure.ac:928: -1- m4_pattern_allow([^VOID_SIGHANDLER$])
+m4trace:configure.ac:929: -1- AC_DEFINE_TRACE_LITERAL([clock_t])
+m4trace:configure.ac:929: -1- m4_pattern_allow([^clock_t$])
+m4trace:configure.ac:930: -1- AC_DEFINE_TRACE_LITERAL([sigset_t])
+m4trace:configure.ac:930: -1- m4_pattern_allow([^sigset_t$])
+m4trace:configure.ac:931: -1- AC_DEFINE_TRACE_LITERAL([HAVE_QUAD_T])
+m4trace:configure.ac:931: -1- m4_pattern_allow([^HAVE_QUAD_T$])
+m4trace:configure.ac:931: -1- AC_DEFINE_TRACE_LITERAL([quad_t])
+m4trace:configure.ac:931: -1- m4_pattern_allow([^quad_t$])
+m4trace:configure.ac:932: -1- AC_DEFINE_TRACE_LITERAL([intmax_t])
+m4trace:configure.ac:932: -1- m4_pattern_allow([^intmax_t$])
+m4trace:configure.ac:933: -1- AC_DEFINE_TRACE_LITERAL([uintmax_t])
+m4trace:configure.ac:933: -1- m4_pattern_allow([^uintmax_t$])
+m4trace:configure.ac:935: -1- AC_DEFINE_TRACE_LITERAL([HAVE_SOCKLEN_T])
+m4trace:configure.ac:935: -1- m4_pattern_allow([^HAVE_SOCKLEN_T$])
+m4trace:configure.ac:935: -1- AC_DEFINE_TRACE_LITERAL([socklen_t])
+m4trace:configure.ac:935: -1- m4_pattern_allow([^socklen_t$])
+m4trace:configure.ac:937: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:507: BASH_TYPE_RLIMIT is expanded from...
-configure.ac:936: the top level])
-m4trace:configure.ac:936: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
+configure.ac:937: the top level])
+m4trace:configure.ac:937: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2591: _AC_COMPILE_IFELSE is expanded from...
@@ -2281,50 +2281,50 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:507: BASH_TYPE_RLIMIT is expanded from...
-configure.ac:936: the top level])
-m4trace:configure.ac:936: -1- AC_DEFINE_TRACE_LITERAL([RLIMTYPE])
-m4trace:configure.ac:936: -1- m4_pattern_allow([^RLIMTYPE$])
-m4trace:configure.ac:936: -1- AC_DEFINE_TRACE_LITERAL([RLIMTYPE])
-m4trace:configure.ac:936: -1- m4_pattern_allow([^RLIMTYPE$])
-m4trace:configure.ac:938: -1- AC_DEFINE_TRACE_LITERAL([SIZEOF_INTMAX_T])
-m4trace:configure.ac:938: -1- m4_pattern_allow([^SIZEOF_INTMAX_T$])
-m4trace:configure.ac:938: -1- AH_OUTPUT([SIZEOF_INTMAX_T], [/* The size of `intmax_t\', as computed by sizeof. */
+configure.ac:937: the top level])
+m4trace:configure.ac:937: -1- AC_DEFINE_TRACE_LITERAL([RLIMTYPE])
+m4trace:configure.ac:937: -1- m4_pattern_allow([^RLIMTYPE$])
+m4trace:configure.ac:937: -1- AC_DEFINE_TRACE_LITERAL([RLIMTYPE])
+m4trace:configure.ac:937: -1- m4_pattern_allow([^RLIMTYPE$])
+m4trace:configure.ac:939: -1- AC_DEFINE_TRACE_LITERAL([SIZEOF_INTMAX_T])
+m4trace:configure.ac:939: -1- m4_pattern_allow([^SIZEOF_INTMAX_T$])
+m4trace:configure.ac:939: -1- AH_OUTPUT([SIZEOF_INTMAX_T], [/* The size of `intmax_t\', as computed by sizeof. */
 @%:@undef SIZEOF_INTMAX_T])
-m4trace:configure.ac:941: -2- AC_DEFINE_TRACE_LITERAL([TERMIOS_LDISC])
-m4trace:configure.ac:941: -2- m4_pattern_allow([^TERMIOS_LDISC$])
-m4trace:configure.ac:942: -2- AC_DEFINE_TRACE_LITERAL([TERMIO_LDISC])
-m4trace:configure.ac:942: -2- m4_pattern_allow([^TERMIO_LDISC$])
-m4trace:configure.ac:943: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+m4trace:configure.ac:942: -2- AC_DEFINE_TRACE_LITERAL([TERMIOS_LDISC])
+m4trace:configure.ac:942: -2- m4_pattern_allow([^TERMIOS_LDISC$])
+m4trace:configure.ac:943: -2- AC_DEFINE_TRACE_LITERAL([TERMIO_LDISC])
+m4trace:configure.ac:943: -2- m4_pattern_allow([^TERMIO_LDISC$])
+m4trace:configure.ac:944: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:1042: BASH_STRUCT_DIRENT_D_INO is expanded from...
-configure.ac:943: the top level])
-m4trace:configure.ac:943: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_INO])
-m4trace:configure.ac:943: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_INO$])
-m4trace:configure.ac:944: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:944: the top level])
+m4trace:configure.ac:944: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_INO])
+m4trace:configure.ac:944: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_INO$])
+m4trace:configure.ac:945: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:1075: BASH_STRUCT_DIRENT_D_FILENO is expanded from...
-configure.ac:944: the top level])
-m4trace:configure.ac:944: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_FILENO])
-m4trace:configure.ac:944: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_FILENO$])
-m4trace:configure.ac:945: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:945: the top level])
+m4trace:configure.ac:945: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_FILENO])
+m4trace:configure.ac:945: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_FILENO$])
+m4trace:configure.ac:946: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:1108: BASH_STRUCT_DIRENT_D_NAMLEN is expanded from...
-configure.ac:945: the top level])
-m4trace:configure.ac:945: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_NAMLEN])
-m4trace:configure.ac:945: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_NAMLEN$])
-m4trace:configure.ac:946: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:946: the top level])
+m4trace:configure.ac:946: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_DIRENT_D_NAMLEN])
+m4trace:configure.ac:946: -1- m4_pattern_allow([^HAVE_STRUCT_DIRENT_D_NAMLEN$])
+m4trace:configure.ac:947: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:1173: BASH_STRUCT_WINSIZE is expanded from...
-configure.ac:946: the top level])
-m4trace:configure.ac:946: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
+configure.ac:947: the top level])
+m4trace:configure.ac:947: -1- _m4_warn([obsolete], [The macro `AC_TRY_COMPILE' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2591: _AC_COMPILE_IFELSE is expanded from...
@@ -2333,303 +2333,303 @@ You should run autoupdate.], [../../lib/autoconf/general.m4:2615: AC_TRY_COMPILE
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:1173: BASH_STRUCT_WINSIZE is expanded from...
-configure.ac:946: the top level])
-m4trace:configure.ac:946: -1- AC_DEFINE_TRACE_LITERAL([STRUCT_WINSIZE_IN_SYS_IOCTL])
-m4trace:configure.ac:946: -1- m4_pattern_allow([^STRUCT_WINSIZE_IN_SYS_IOCTL$])
-m4trace:configure.ac:946: -1- AC_DEFINE_TRACE_LITERAL([STRUCT_WINSIZE_IN_TERMIOS])
-m4trace:configure.ac:946: -1- m4_pattern_allow([^STRUCT_WINSIZE_IN_TERMIOS$])
-m4trace:configure.ac:947: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TIMEVAL])
-m4trace:configure.ac:947: -1- m4_pattern_allow([^HAVE_TIMEVAL$])
-m4trace:configure.ac:948: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_STAT_ST_BLOCKS])
-m4trace:configure.ac:948: -1- m4_pattern_allow([^HAVE_STRUCT_STAT_ST_BLOCKS$])
-m4trace:configure.ac:948: -1- AH_OUTPUT([HAVE_STRUCT_STAT_ST_BLOCKS], [/* Define to 1 if `st_blocks\' is a member of `struct stat\'. */
+configure.ac:947: the top level])
+m4trace:configure.ac:947: -1- AC_DEFINE_TRACE_LITERAL([STRUCT_WINSIZE_IN_SYS_IOCTL])
+m4trace:configure.ac:947: -1- m4_pattern_allow([^STRUCT_WINSIZE_IN_SYS_IOCTL$])
+m4trace:configure.ac:947: -1- AC_DEFINE_TRACE_LITERAL([STRUCT_WINSIZE_IN_TERMIOS])
+m4trace:configure.ac:947: -1- m4_pattern_allow([^STRUCT_WINSIZE_IN_TERMIOS$])
+m4trace:configure.ac:948: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TIMEVAL])
+m4trace:configure.ac:948: -1- m4_pattern_allow([^HAVE_TIMEVAL$])
+m4trace:configure.ac:949: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_STAT_ST_BLOCKS])
+m4trace:configure.ac:949: -1- m4_pattern_allow([^HAVE_STRUCT_STAT_ST_BLOCKS$])
+m4trace:configure.ac:949: -1- AH_OUTPUT([HAVE_STRUCT_STAT_ST_BLOCKS], [/* Define to 1 if `st_blocks\' is a member of `struct stat\'. */
 @%:@undef HAVE_STRUCT_STAT_ST_BLOCKS])
-m4trace:configure.ac:949: -1- AC_DEFINE_TRACE_LITERAL([TM_IN_SYS_TIME])
-m4trace:configure.ac:949: -1- m4_pattern_allow([^TM_IN_SYS_TIME$])
-m4trace:configure.ac:949: -1- AH_OUTPUT([TM_IN_SYS_TIME], [/* Define to 1 if your <sys/time.h> declares `struct tm\'. */
+m4trace:configure.ac:950: -1- AC_DEFINE_TRACE_LITERAL([TM_IN_SYS_TIME])
+m4trace:configure.ac:950: -1- m4_pattern_allow([^TM_IN_SYS_TIME$])
+m4trace:configure.ac:950: -1- AH_OUTPUT([TM_IN_SYS_TIME], [/* Define to 1 if your <sys/time.h> declares `struct tm\'. */
 @%:@undef TM_IN_SYS_TIME])
-m4trace:configure.ac:950: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TM_TM_ZONE])
-m4trace:configure.ac:950: -1- m4_pattern_allow([^HAVE_STRUCT_TM_TM_ZONE$])
-m4trace:configure.ac:950: -1- AH_OUTPUT([HAVE_STRUCT_TM_TM_ZONE], [/* Define to 1 if `tm_zone\' is a member of `struct tm\'. */
+m4trace:configure.ac:951: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TM_TM_ZONE])
+m4trace:configure.ac:951: -1- m4_pattern_allow([^HAVE_STRUCT_TM_TM_ZONE$])
+m4trace:configure.ac:951: -1- AH_OUTPUT([HAVE_STRUCT_TM_TM_ZONE], [/* Define to 1 if `tm_zone\' is a member of `struct tm\'. */
 @%:@undef HAVE_STRUCT_TM_TM_ZONE])
-m4trace:configure.ac:950: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TM_ZONE])
-m4trace:configure.ac:950: -1- m4_pattern_allow([^HAVE_TM_ZONE$])
-m4trace:configure.ac:950: -1- AH_OUTPUT([HAVE_TM_ZONE], [/* Define to 1 if your `struct tm\' has `tm_zone\'. Deprecated, use
+m4trace:configure.ac:951: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TM_ZONE])
+m4trace:configure.ac:951: -1- m4_pattern_allow([^HAVE_TM_ZONE$])
+m4trace:configure.ac:951: -1- AH_OUTPUT([HAVE_TM_ZONE], [/* Define to 1 if your `struct tm\' has `tm_zone\'. Deprecated, use
    `HAVE_STRUCT_TM_TM_ZONE\' instead. */
 @%:@undef HAVE_TM_ZONE])
-m4trace:configure.ac:950: -1- AC_DEFINE_TRACE_LITERAL([HAVE_DECL_TZNAME])
-m4trace:configure.ac:950: -1- m4_pattern_allow([^HAVE_DECL_TZNAME$])
-m4trace:configure.ac:950: -1- AH_OUTPUT([HAVE_DECL_TZNAME], [/* Define to 1 if you have the declaration of `tzname\', and to 0 if you don\'t.
+m4trace:configure.ac:951: -1- AC_DEFINE_TRACE_LITERAL([HAVE_DECL_TZNAME])
+m4trace:configure.ac:951: -1- m4_pattern_allow([^HAVE_DECL_TZNAME$])
+m4trace:configure.ac:951: -1- AH_OUTPUT([HAVE_DECL_TZNAME], [/* Define to 1 if you have the declaration of `tzname\', and to 0 if you don\'t.
    */
 @%:@undef HAVE_DECL_TZNAME])
-m4trace:configure.ac:950: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TZNAME])
-m4trace:configure.ac:950: -1- m4_pattern_allow([^HAVE_TZNAME$])
-m4trace:configure.ac:950: -1- AH_OUTPUT([HAVE_TZNAME], [/* Define to 1 if you don\'t have `tm_zone\' but do have the external array
+m4trace:configure.ac:951: -1- AC_DEFINE_TRACE_LITERAL([HAVE_TZNAME])
+m4trace:configure.ac:951: -1- m4_pattern_allow([^HAVE_TZNAME$])
+m4trace:configure.ac:951: -1- AH_OUTPUT([HAVE_TZNAME], [/* Define to 1 if you don\'t have `tm_zone\' but do have the external array
    `tzname\'. */
 @%:@undef HAVE_TZNAME])
-m4trace:configure.ac:951: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TIMEZONE])
-m4trace:configure.ac:951: -1- m4_pattern_allow([^HAVE_STRUCT_TIMEZONE$])
-m4trace:configure.ac:953: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
+m4trace:configure.ac:952: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TIMEZONE])
+m4trace:configure.ac:952: -1- m4_pattern_allow([^HAVE_STRUCT_TIMEZONE$])
+m4trace:configure.ac:954: -1- _m4_warn([obsolete], [The macro `AC_TRY_RUN' is obsolete.
 You should run autoupdate.], [../../lib/autoconf/general.m4:2765: AC_TRY_RUN is expanded from...
 ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
 ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from...
 aclocal.m4:4149: BASH_STRUCT_WEXITSTATUS_OFFSET is expanded from...
-configure.ac:953: the top level])
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-m4trace:configure.ac:953: -1- m4_pattern_allow([^WEXITSTATUS_OFFSET$])
-m4trace:configure.ac:953: -1- AH_OUTPUT([WEXITSTATUS_OFFSET], [/* Offset of exit status in wait status word */
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 @%:@undef WEXITSTATUS_OFFSET])
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-m4trace:configure.ac:955: -1- m4_pattern_allow([^HAVE_STRUCT_TIMESPEC$])
-m4trace:configure.ac:955: -1- AC_DEFINE_TRACE_LITERAL([TIME_H_DEFINES_STRUCT_TIMESPEC])
-m4trace:configure.ac:955: -1- m4_pattern_allow([^TIME_H_DEFINES_STRUCT_TIMESPEC$])
-m4trace:configure.ac:955: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TIMESPEC])
-m4trace:configure.ac:955: -1- m4_pattern_allow([^HAVE_STRUCT_TIMESPEC$])
-m4trace:configure.ac:955: -1- AC_DEFINE_TRACE_LITERAL([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC])
-m4trace:configure.ac:955: -1- m4_pattern_allow([^SYS_TIME_H_DEFINES_STRUCT_TIMESPEC$])
-m4trace:configure.ac:955: -1- AC_DEFINE_TRACE_LITERAL([HAVE_STRUCT_TIMESPEC])
-m4trace:configure.ac:955: -1- m4_pattern_allow([^HAVE_STRUCT_TIMESPEC$])
-m4trace:configure.ac:955: -1- AC_DEFINE_TRACE_LITERAL([PTHREAD_H_DEFINES_STRUCT_TIMESPEC])
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-m4trace:configure.ac:1172: -1- AC_SUBST_TRACE([MALLOC_DEBUG])
-m4trace:configure.ac:1172: -1- m4_pattern_allow([^MALLOC_DEBUG$])
-m4trace:configure.ac:1174: -1- AC_SUBST([host_cpu])
-m4trace:configure.ac:1174: -1- AC_SUBST_TRACE([host_cpu])
-m4trace:configure.ac:1174: -1- m4_pattern_allow([^host_cpu$])
-m4trace:configure.ac:1175: -1- AC_SUBST([host_vendor])
-m4trace:configure.ac:1175: -1- AC_SUBST_TRACE([host_vendor])
-m4trace:configure.ac:1175: -1- m4_pattern_allow([^host_vendor$])
-m4trace:configure.ac:1176: -1- AC_SUBST([host_os])
-m4trace:configure.ac:1176: -1- AC_SUBST_TRACE([host_os])
-m4trace:configure.ac:1176: -1- m4_pattern_allow([^host_os$])
-m4trace:configure.ac:1178: -1- AC_SUBST([LOCAL_LIBS])
-m4trace:configure.ac:1178: -1- AC_SUBST_TRACE([LOCAL_LIBS])
-m4trace:configure.ac:1178: -1- m4_pattern_allow([^LOCAL_LIBS$])
-m4trace:configure.ac:1179: -1- AC_SUBST([LOCAL_CFLAGS])
-m4trace:configure.ac:1179: -1- AC_SUBST_TRACE([LOCAL_CFLAGS])
-m4trace:configure.ac:1179: -1- m4_pattern_allow([^LOCAL_CFLAGS$])
-m4trace:configure.ac:1180: -1- AC_SUBST([LOCAL_LDFLAGS])
-m4trace:configure.ac:1180: -1- AC_SUBST_TRACE([LOCAL_LDFLAGS])
-m4trace:configure.ac:1180: -1- m4_pattern_allow([^LOCAL_LDFLAGS$])
-m4trace:configure.ac:1181: -1- AC_SUBST([LOCAL_DEFS])
-m4trace:configure.ac:1181: -1- AC_SUBST_TRACE([LOCAL_DEFS])
-m4trace:configure.ac:1181: -1- m4_pattern_allow([^LOCAL_DEFS$])
-m4trace:configure.ac:1186: -1- AC_CONFIG_FILES([Makefile builtins/Makefile lib/readline/Makefile lib/glob/Makefile \
+m4trace:configure.ac:1052: -1- AC_DEFINE_TRACE_LITERAL([SVR4])
+m4trace:configure.ac:1052: -1- m4_pattern_allow([^SVR4$])
+m4trace:configure.ac:1053: -1- AC_DEFINE_TRACE_LITERAL([SVR5])
+m4trace:configure.ac:1053: -1- m4_pattern_allow([^SVR5$])
+m4trace:configure.ac:1072: -1- AC_DEFINE_TRACE_LITERAL([PGRP_PIPE])
+m4trace:configure.ac:1072: -1- m4_pattern_allow([^PGRP_PIPE$])
+m4trace:configure.ac:1120: -1- AC_SUBST([SHOBJ_CC])
+m4trace:configure.ac:1120: -1- AC_SUBST_TRACE([SHOBJ_CC])
+m4trace:configure.ac:1120: -1- m4_pattern_allow([^SHOBJ_CC$])
+m4trace:configure.ac:1121: -1- AC_SUBST([SHOBJ_CFLAGS])
+m4trace:configure.ac:1121: -1- AC_SUBST_TRACE([SHOBJ_CFLAGS])
+m4trace:configure.ac:1121: -1- m4_pattern_allow([^SHOBJ_CFLAGS$])
+m4trace:configure.ac:1122: -1- AC_SUBST([SHOBJ_LD])
+m4trace:configure.ac:1122: -1- AC_SUBST_TRACE([SHOBJ_LD])
+m4trace:configure.ac:1122: -1- m4_pattern_allow([^SHOBJ_LD$])
+m4trace:configure.ac:1123: -1- AC_SUBST([SHOBJ_LDFLAGS])
+m4trace:configure.ac:1123: -1- AC_SUBST_TRACE([SHOBJ_LDFLAGS])
+m4trace:configure.ac:1123: -1- m4_pattern_allow([^SHOBJ_LDFLAGS$])
+m4trace:configure.ac:1124: -1- AC_SUBST([SHOBJ_XLDFLAGS])
+m4trace:configure.ac:1124: -1- AC_SUBST_TRACE([SHOBJ_XLDFLAGS])
+m4trace:configure.ac:1124: -1- m4_pattern_allow([^SHOBJ_XLDFLAGS$])
+m4trace:configure.ac:1125: -1- AC_SUBST([SHOBJ_LIBS])
+m4trace:configure.ac:1125: -1- AC_SUBST_TRACE([SHOBJ_LIBS])
+m4trace:configure.ac:1125: -1- m4_pattern_allow([^SHOBJ_LIBS$])
+m4trace:configure.ac:1126: -1- AC_SUBST([SHOBJ_STATUS])
+m4trace:configure.ac:1126: -1- AC_SUBST_TRACE([SHOBJ_STATUS])
+m4trace:configure.ac:1126: -1- m4_pattern_allow([^SHOBJ_STATUS$])
+m4trace:configure.ac:1158: -1- AC_SUBST([PROFILE_FLAGS])
+m4trace:configure.ac:1158: -1- AC_SUBST_TRACE([PROFILE_FLAGS])
+m4trace:configure.ac:1158: -1- m4_pattern_allow([^PROFILE_FLAGS$])
+m4trace:configure.ac:1160: -1- AC_SUBST([incdir])
+m4trace:configure.ac:1160: -1- AC_SUBST_TRACE([incdir])
+m4trace:configure.ac:1160: -1- m4_pattern_allow([^incdir$])
+m4trace:configure.ac:1161: -1- AC_SUBST([BUILD_DIR])
+m4trace:configure.ac:1161: -1- AC_SUBST_TRACE([BUILD_DIR])
+m4trace:configure.ac:1161: -1- m4_pattern_allow([^BUILD_DIR$])
+m4trace:configure.ac:1164: -1- AC_SUBST([datarootdir])
+m4trace:configure.ac:1164: -1- AC_SUBST_TRACE([datarootdir])
+m4trace:configure.ac:1164: -1- m4_pattern_allow([^datarootdir$])
+m4trace:configure.ac:1165: -1- AC_SUBST([localedir])
+m4trace:configure.ac:1165: -1- AC_SUBST_TRACE([localedir])
+m4trace:configure.ac:1165: -1- m4_pattern_allow([^localedir$])
+m4trace:configure.ac:1167: -1- AC_SUBST([YACC])
+m4trace:configure.ac:1167: -1- AC_SUBST_TRACE([YACC])
+m4trace:configure.ac:1167: -1- m4_pattern_allow([^YACC$])
+m4trace:configure.ac:1168: -1- AC_SUBST([AR])
+m4trace:configure.ac:1168: -1- AC_SUBST_TRACE([AR])
+m4trace:configure.ac:1168: -1- m4_pattern_allow([^AR$])
+m4trace:configure.ac:1169: -1- AC_SUBST([ARFLAGS])
+m4trace:configure.ac:1169: -1- AC_SUBST_TRACE([ARFLAGS])
+m4trace:configure.ac:1169: -1- m4_pattern_allow([^ARFLAGS$])
+m4trace:configure.ac:1171: -1- AC_SUBST([BASHVERS])
+m4trace:configure.ac:1171: -1- AC_SUBST_TRACE([BASHVERS])
+m4trace:configure.ac:1171: -1- m4_pattern_allow([^BASHVERS$])
+m4trace:configure.ac:1172: -1- AC_SUBST([RELSTATUS])
+m4trace:configure.ac:1172: -1- AC_SUBST_TRACE([RELSTATUS])
+m4trace:configure.ac:1172: -1- m4_pattern_allow([^RELSTATUS$])
+m4trace:configure.ac:1173: -1- AC_SUBST([DEBUG])
+m4trace:configure.ac:1173: -1- AC_SUBST_TRACE([DEBUG])
+m4trace:configure.ac:1173: -1- m4_pattern_allow([^DEBUG$])
+m4trace:configure.ac:1174: -1- AC_SUBST([MALLOC_DEBUG])
+m4trace:configure.ac:1174: -1- AC_SUBST_TRACE([MALLOC_DEBUG])
+m4trace:configure.ac:1174: -1- m4_pattern_allow([^MALLOC_DEBUG$])
+m4trace:configure.ac:1176: -1- AC_SUBST([host_cpu])
+m4trace:configure.ac:1176: -1- AC_SUBST_TRACE([host_cpu])
+m4trace:configure.ac:1176: -1- m4_pattern_allow([^host_cpu$])
+m4trace:configure.ac:1177: -1- AC_SUBST([host_vendor])
+m4trace:configure.ac:1177: -1- AC_SUBST_TRACE([host_vendor])
+m4trace:configure.ac:1177: -1- m4_pattern_allow([^host_vendor$])
+m4trace:configure.ac:1178: -1- AC_SUBST([host_os])
+m4trace:configure.ac:1178: -1- AC_SUBST_TRACE([host_os])
+m4trace:configure.ac:1178: -1- m4_pattern_allow([^host_os$])
+m4trace:configure.ac:1180: -1- AC_SUBST([LOCAL_LIBS])
+m4trace:configure.ac:1180: -1- AC_SUBST_TRACE([LOCAL_LIBS])
+m4trace:configure.ac:1180: -1- m4_pattern_allow([^LOCAL_LIBS$])
+m4trace:configure.ac:1181: -1- AC_SUBST([LOCAL_CFLAGS])
+m4trace:configure.ac:1181: -1- AC_SUBST_TRACE([LOCAL_CFLAGS])
+m4trace:configure.ac:1181: -1- m4_pattern_allow([^LOCAL_CFLAGS$])
+m4trace:configure.ac:1182: -1- AC_SUBST([LOCAL_LDFLAGS])
+m4trace:configure.ac:1182: -1- AC_SUBST_TRACE([LOCAL_LDFLAGS])
+m4trace:configure.ac:1182: -1- m4_pattern_allow([^LOCAL_LDFLAGS$])
+m4trace:configure.ac:1183: -1- AC_SUBST([LOCAL_DEFS])
+m4trace:configure.ac:1183: -1- AC_SUBST_TRACE([LOCAL_DEFS])
+m4trace:configure.ac:1183: -1- m4_pattern_allow([^LOCAL_DEFS$])
+m4trace:configure.ac:1188: -1- AC_CONFIG_FILES([Makefile builtins/Makefile lib/readline/Makefile lib/glob/Makefile \
          lib/intl/Makefile \
          lib/malloc/Makefile lib/sh/Makefile lib/termcap/Makefile \
          lib/tilde/Makefile doc/Makefile support/Makefile po/Makefile.in \
          examples/loadables/Makefile examples/loadables/perl/Makefile])
-m4trace:configure.ac:1186: -1- _m4_warn([obsolete], [AC_OUTPUT should be used without arguments.
+m4trace:configure.ac:1188: -1- _m4_warn([obsolete], [AC_OUTPUT should be used without arguments.
 You should run autoupdate.], [])
-m4trace:configure.ac:1186: -1- AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([LIB@&t@OBJS])
-m4trace:configure.ac:1186: -1- m4_pattern_allow([^LIB@&t@OBJS$])
-m4trace:configure.ac:1186: -1- AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([LTLIBOBJS])
-m4trace:configure.ac:1186: -1- m4_pattern_allow([^LTLIBOBJS$])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([top_builddir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([top_build_prefix])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([srcdir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([abs_srcdir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([top_srcdir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([abs_top_srcdir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([builddir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([abs_builddir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([abs_top_builddir])
-m4trace:configure.ac:1186: -1- AC_SUBST_TRACE([INSTALL])
+m4trace:configure.ac:1188: -1- AC_SUBST([LIB@&t@OBJS], [$ac_libobjs])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([LIB@&t@OBJS])
+m4trace:configure.ac:1188: -1- m4_pattern_allow([^LIB@&t@OBJS$])
+m4trace:configure.ac:1188: -1- AC_SUBST([LTLIBOBJS], [$ac_ltlibobjs])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([LTLIBOBJS])
+m4trace:configure.ac:1188: -1- m4_pattern_allow([^LTLIBOBJS$])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([top_builddir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([top_build_prefix])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([srcdir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([abs_srcdir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([top_srcdir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([abs_top_srcdir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([builddir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([abs_builddir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([abs_top_builddir])
+m4trace:configure.ac:1188: -1- AC_SUBST_TRACE([INSTALL])

diff --git a/builtins/read.def b/builtins/read.def
index ea2667bb7ecd134ad39ae8326c0da6ac61870699..7a1dff6f0cdf1e34033344987a725453baa5e5cf 100644 (file)
--- a/builtins/read.def
+++ b/builtins/read.def
@@ -136,27 +136,26 @@ static void ttyrestore __P((struct ttsave *));
 static sighandler sigalrm __P((int));
 static void reset_alarm __P((void));
 
-static procenv_t alrmbuf;
-static int sigalrm_seen, reading;
+/* Try this to see what the rest of the shell can do with the information. */
+procenv_t alrmbuf;
+int sigalrm_seen;
+
+static int reading;
 static SigHandler *old_alrm;
 static unsigned char delim;
 
-/* In most cases, SIGALRM just sets a flag that we check periodically.  This
+/* In all cases, SIGALRM just sets a flag that we check periodically.  This
    avoids problems with the semi-tricky stuff we do with the xfree of
    input_string at the top of the unwind-protect list (see below). */
-#define CHECK_ALRM \
-  do { \
-    if (sigalrm_seen) \
-      longjmp (alrmbuf, 1); \
-  } while (0)
 
+/* Set a flag that CHECK_ALRM can check.  This relies on zread calling
+   trap.c:check_signals_and_traps(), which knows about sigalrm_seen and
+   alrmbuf. */
 static sighandler
 sigalrm (s)
      int s;
 {
   sigalrm_seen = 1;
-  if (reading)         /* do the longjmp if we get SIGALRM while in read() */
-    longjmp (alrmbuf, 1);
 }
 
 static void

diff --git a/builtins/read.def~ b/builtins/read.def~
new file mode 100644 (file)
index 0000000..a7a54a7
--- /dev/null
+++ b/builtins/read.def~
@@ -0,0 +1,1084 @@
+This file is read.def, from which is created read.c.
+It implements the builtin "read" in Bash.
+
+Copyright (C) 1987-2012 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+
+$PRODUCES read.c
+
+$BUILTIN read
+$FUNCTION read_builtin
+$SHORT_DOC read [-ers] [-a array] [-d delim] [-i text] [-n nchars] [-N nchars] [-p prompt] [-t timeout] [-u fd] [name ...]
+Read a line from the standard input and split it into fields.
+
+Reads a single line from the standard input, or from file descriptor FD
+if the -u option is supplied.  The line is split into fields as with word
+splitting, and the first word is assigned to the first NAME, the second
+word to the second NAME, and so on, with any leftover words assigned to
+the last NAME.  Only the characters found in $IFS are recognized as word
+delimiters.
+
+If no NAMEs are supplied, the line read is stored in the REPLY variable.
+
+Options:
+  -a array     assign the words read to sequential indices of the array
+               variable ARRAY, starting at zero
+  -d delim     continue until the first character of DELIM is read, rather
+               than newline
+  -e           use Readline to obtain the line in an interactive shell
+  -i text      Use TEXT as the initial text for Readline
+  -n nchars    return after reading NCHARS characters rather than waiting
+               for a newline, but honor a delimiter if fewer than NCHARS
+               characters are read before the delimiter
+  -N nchars    return only after reading exactly NCHARS characters, unless
+               EOF is encountered or read times out, ignoring any delimiter
+  -p prompt    output the string PROMPT without a trailing newline before
+               attempting to read
+  -r           do not allow backslashes to escape any characters
+  -s           do not echo input coming from a terminal
+  -t timeout   time out and return failure if a complete line of input is
+               not read within TIMEOUT seconds.  The value of the TMOUT
+               variable is the default timeout.  TIMEOUT may be a
+               fractional number.  If TIMEOUT is 0, read returns immediately,
+               without trying to read any data, returning success only if
+               input is available on the specified file descriptor.  The
+               exit status is greater than 128 if the timeout is exceeded
+  -u fd                read from file descriptor FD instead of the standard input
+
+Exit Status:
+The return code is zero, unless end-of-file is encountered, read times out
+(in which case it's greater than 128), a variable assignment error occurs,
+or an invalid file descriptor is supplied as the argument to -u.
+$END
+
+#include <config.h>
+
+#include "bashtypes.h"
+#include "posixstat.h"
+
+#include <stdio.h>
+
+#include "bashansi.h"
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include <signal.h>
+#include <errno.h>
+
+#ifdef __CYGWIN__
+#  include <fcntl.h>
+#  include <io.h>
+#endif
+
+#include "../bashintl.h"
+
+#include "../shell.h"
+#include "common.h"
+#include "bashgetopt.h"
+
+#include <shtty.h>
+
+#if defined (READLINE)
+#include "../bashline.h"
+#include <readline/readline.h>
+#endif
+
+#if defined (BUFFERED_INPUT)
+#  include "input.h"
+#endif
+
+#include "shmbutil.h"
+
+#if !defined(errno)
+extern int errno;
+#endif
+
+extern void run_pending_traps __P((void));
+
+extern int posixly_correct;
+extern int trapped_signal_received;
+
+struct ttsave
+{
+  int fd;
+  TTYSTRUCT *attrs;
+};
+
+#if defined (READLINE)
+static void reset_attempted_completion_function __P((char *));
+static int set_itext __P((void));
+static char *edit_line __P((char *, char *));
+static void set_eol_delim __P((int));
+static void reset_eol_delim __P((char *));
+#endif
+static SHELL_VAR *bind_read_variable __P((char *, char *));
+#if defined (HANDLE_MULTIBYTE)
+static int read_mbchar __P((int, char *, int, int, int));
+#endif
+static void ttyrestore __P((struct ttsave *));
+
+static sighandler sigalrm __P((int));
+static void reset_alarm __P((void));
+
+/* Try this to see what the rest of the shell can do with the information. */
+procenv_t alrmbuf;
+int sigalrm_seen;
+
+static int reading;
+static SigHandler *old_alrm;
+static unsigned char delim;
+
+/* In all cases, SIGALRM just sets a flag that we check periodically.  This
+   avoids problems with the semi-tricky stuff we do with the xfree of
+   input_string at the top of the unwind-protect list (see below). */
+
+/* Set a flag that CHECK_ALRM can check.  This relies on zread calling
+   trap.c:check_signals_and_traps(), which knows about sigalrm_seen and
+   alrmbuf. */
+static sighandler
+sigalrm (s)
+     int s;
+{
+itrace("sigalrm: reading = %d", reading);
+  sigalrm_seen = 1;
+}
+
+static void
+reset_alarm ()
+{
+itrace("reset_alarm: resetting SIGALRM handler to %p", old_alrm);
+  set_signal_handler (SIGALRM, old_alrm);
+  falarm (0, 0);
+}
+
+/* Read the value of the shell variables whose names follow.
+   The reading is done from the current input stream, whatever
+   that may be.  Successive words of the input line are assigned
+   to the variables mentioned in LIST.  The last variable in LIST
+   gets the remainder of the words on the line.  If no variables
+   are mentioned in LIST, then the default variable is $REPLY. */
+int
+read_builtin (list)
+     WORD_LIST *list;
+{
+  register char *varname;
+  int size, i, nr, pass_next, saw_escape, eof, opt, retval, code, print_ps2;
+  int input_is_tty, input_is_pipe, unbuffered_read, skip_ctlesc, skip_ctlnul;
+  int raw, edit, nchars, silent, have_timeout, ignore_delim, fd, lastsig, t_errno;
+  unsigned int tmsec, tmusec;
+  long ival, uval;
+  intmax_t intval;
+  char c;
+  char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname;
+  char *e, *t, *t1, *ps2, *tofree;
+  struct stat tsb;
+  SHELL_VAR *var;
+  TTYSTRUCT ttattrs, ttset;
+  struct ttsave termsave;
+#if defined (ARRAY_VARS)
+  WORD_LIST *alist;
+#endif
+#if defined (READLINE)
+  char *rlbuf, *itext;
+  int rlind;
+#endif
+
+  USE_VAR(size);
+  USE_VAR(i);
+  USE_VAR(pass_next);
+  USE_VAR(print_ps2);
+  USE_VAR(saw_escape);
+  USE_VAR(input_is_pipe);
+/*  USE_VAR(raw); */
+  USE_VAR(edit);
+  USE_VAR(tmsec);
+  USE_VAR(tmusec);
+  USE_VAR(nchars);
+  USE_VAR(silent);
+  USE_VAR(ifs_chars);
+  USE_VAR(prompt);
+  USE_VAR(arrayname);
+#if defined (READLINE)
+  USE_VAR(rlbuf);
+  USE_VAR(rlind);
+  USE_VAR(itext);
+#endif
+  USE_VAR(list);
+  USE_VAR(ps2);
+  USE_VAR(lastsig);
+
+  sigalrm_seen = reading = 0;
+
+  i = 0;               /* Index into the string that we are reading. */
+  raw = edit = 0;      /* Not reading raw input by default. */
+  silent = 0;
+  arrayname = prompt = (char *)NULL;
+  fd = 0;              /* file descriptor to read from */
+
+#if defined (READLINE)
+  rlbuf = itext = (char *)0;
+  rlind = 0;
+#endif
+
+  tmsec = tmusec = 0;          /* no timeout */
+  nr = nchars = input_is_tty = input_is_pipe = unbuffered_read = have_timeout = 0;
+  delim = '\n';                /* read until newline */
+  ignore_delim = 0;
+
+  reset_internal_getopt ();
+  while ((opt = internal_getopt (list, "ersa:d:i:n:p:t:u:N:")) != -1)
+    {
+      switch (opt)
+       {
+       case 'r':
+         raw = 1;
+         break;
+       case 'p':
+         prompt = list_optarg;
+         break;
+       case 's':
+         silent = 1;
+         break;
+       case 'e':
+#if defined (READLINE)
+         edit = 1;
+#endif
+         break;
+       case 'i':
+#if defined (READLINE)
+         itext = list_optarg;
+#endif
+         break;
+#if defined (ARRAY_VARS)
+       case 'a':
+         arrayname = list_optarg;
+         break;
+#endif
+       case 't':
+         code = uconvert (list_optarg, &ival, &uval);
+         if (code == 0 || ival < 0 || uval < 0)
+           {
+             builtin_error (_("%s: invalid timeout specification"), list_optarg);
+             return (EXECUTION_FAILURE);
+           }
+         else
+           {
+             have_timeout = 1;
+             tmsec = ival;
+             tmusec = uval;
+           }
+         break;
+       case 'N':
+         ignore_delim = 1;
+         delim = -1;
+       case 'n':
+         code = legal_number (list_optarg, &intval);
+         if (code == 0 || intval < 0 || intval != (int)intval)
+           {
+             sh_invalidnum (list_optarg);
+             return (EXECUTION_FAILURE);
+           }
+         else
+           nchars = intval;
+         break;
+       case 'u':
+         code = legal_number (list_optarg, &intval);
+         if (code == 0 || intval < 0 || intval != (int)intval)
+           {
+             builtin_error (_("%s: invalid file descriptor specification"), list_optarg);
+             return (EXECUTION_FAILURE);
+           }
+         else
+           fd = intval;
+         if (sh_validfd (fd) == 0)
+           {
+             builtin_error (_("%d: invalid file descriptor: %s"), fd, strerror (errno));
+             return (EXECUTION_FAILURE);
+           }
+         break;
+       case 'd':
+         delim = *list_optarg;
+         break;
+       default:
+         builtin_usage ();
+         return (EX_USAGE);
+       }
+    }
+  list = loptend;
+
+  /* `read -t 0 var' tests whether input is available with select/FIONREAD,
+     and fails if those are unavailable */
+  if (have_timeout && tmsec == 0 && tmusec == 0)
+#if 0
+    return (EXECUTION_FAILURE);
+#else
+    return (input_avail (fd) ? EXECUTION_SUCCESS : EXECUTION_FAILURE);
+#endif
+
+  /* If we're asked to ignore the delimiter, make sure we do. */
+  if (ignore_delim)
+    delim = -1;
+
+  /* IF IFS is unset, we use the default of " \t\n". */
+  ifs_chars = getifs ();
+  if (ifs_chars == 0)          /* XXX - shouldn't happen */
+    ifs_chars = "";
+  /* If we want to read exactly NCHARS chars, don't split on IFS */
+  if (ignore_delim)
+    ifs_chars = "";
+  for (skip_ctlesc = skip_ctlnul = 0, e = ifs_chars; *e; e++)
+    skip_ctlesc |= *e == CTLESC, skip_ctlnul |= *e == CTLNUL;
+
+  input_string = (char *)xmalloc (size = 112); /* XXX was 128 */
+  input_string[0] = '\0';
+
+  /* $TMOUT, if set, is the default timeout for read. */
+  if (have_timeout == 0 && (e = get_string_value ("TMOUT")))
+    {
+      code = uconvert (e, &ival, &uval);
+      if (code == 0 || ival < 0 || uval < 0)
+       tmsec = tmusec = 0;
+      else
+       {
+         tmsec = ival;
+         tmusec = uval;
+       }
+    }
+
+  begin_unwind_frame ("read_builtin");
+
+#if defined (BUFFERED_INPUT)
+  if (interactive == 0 && default_buffered_input >= 0 && fd_is_bash_input (fd))
+    sync_buffered_stream (default_buffered_input);
+#endif
+
+  input_is_tty = isatty (fd);
+  if (input_is_tty == 0)
+#ifndef __CYGWIN__
+    input_is_pipe = (lseek (fd, 0L, SEEK_CUR) < 0) && (errno == ESPIPE);
+#else
+    input_is_pipe = 1;
+#endif
+
+  /* If the -p, -e or -s flags were given, but input is not coming from the
+     terminal, turn them off. */
+  if ((prompt || edit || silent) && input_is_tty == 0)
+    {
+      prompt = (char *)NULL;
+#if defined (READLINE)
+      itext = (char *)NULL;
+#endif
+      edit = silent = 0;
+    }
+
+#if defined (READLINE)
+  if (edit)
+    add_unwind_protect (xfree, rlbuf);
+#endif
+
+  pass_next = 0;       /* Non-zero signifies last char was backslash. */
+  saw_escape = 0;      /* Non-zero signifies that we saw an escape char */
+
+  if (tmsec > 0 || tmusec > 0)
+    {
+      /* Turn off the timeout if stdin is a regular file (e.g. from
+        input redirection). */
+      if ((fstat (fd, &tsb) < 0) || S_ISREG (tsb.st_mode))
+       tmsec = tmusec = 0;
+    }
+
+  if (tmsec > 0 || tmusec > 0)
+    {
+      code = setjmp_nosigs (alrmbuf);
+      if (code)
+       {
+itrace("read_builtin: longjmp to alrmbuf code = %d", code);
+         sigalrm_seen = 0;
+         /* Tricky.  The top of the unwind-protect stack is the free of
+            input_string.  We want to run all the rest and use input_string,
+            so we have to save input_string temporarily, run the unwind-
+            protects, then restore input_string so we can use it later */
+         orig_input_string = 0;
+         input_string[i] = '\0';       /* make sure it's terminated */
+         if (i == 0)
+           {
+             t = (char *)xmalloc (1);
+             t[0] = 0;
+           }
+         else
+           t = savestring (input_string);
+
+         run_unwind_frame ("read_builtin");
+         input_string = t;
+         retval = 128+SIGALRM;
+         goto assign_vars;
+       }
+      old_alrm = set_signal_handler (SIGALRM, sigalrm);
+itrace("read_builtin: set_signal_handler for SIGALRM to sigalrm");
+      add_unwind_protect (reset_alarm, (char *)NULL);
+#if defined (READLINE)
+      if (edit)
+       add_unwind_protect (reset_attempted_completion_function, (char *)NULL);
+#endif
+      falarm (tmsec, tmusec);
+itrace("read_builtin: set falarm %d %d", tmsec, tmusec);
+    }
+
+  /* If we've been asked to read only NCHARS chars, or we're using some
+     character other than newline to terminate the line, do the right
+     thing to readline or the tty. */
+  if (nchars > 0 || delim != '\n')
+    {
+#if defined (READLINE)
+      if (edit)
+       {
+         if (nchars > 0)
+           {
+             unwind_protect_int (rl_num_chars_to_read);
+             rl_num_chars_to_read = nchars;
+           }
+         if (delim != '\n')
+           {
+             set_eol_delim (delim);
+             add_unwind_protect (reset_eol_delim, (char *)NULL);
+           }
+       }
+      else
+#endif
+      if (input_is_tty)
+       {
+         /* ttsave() */
+         termsave.fd = fd;
+         ttgetattr (fd, &ttattrs);
+         termsave.attrs = &ttattrs;
+
+         ttset = ttattrs;        
+         i = silent ? ttfd_cbreak (fd, &ttset) : ttfd_onechar (fd, &ttset);
+         if (i < 0)
+           sh_ttyerror (1);
+         add_unwind_protect ((Function *)ttyrestore, (char *)&termsave);
+       }
+    }
+  else if (silent)     /* turn off echo but leave term in canonical mode */
+    {
+      /* ttsave (); */
+      termsave.fd = fd;
+      ttgetattr (fd, &ttattrs);
+      termsave.attrs = &ttattrs;
+
+      ttset = ttattrs;
+      i = ttfd_noecho (fd, &ttset);                    /* ttnoecho (); */
+      if (i < 0)
+       sh_ttyerror (1);
+
+      add_unwind_protect ((Function *)ttyrestore, (char *)&termsave);
+    }
+
+  /* This *must* be the top unwind-protect on the stack, so the manipulation
+     of the unwind-protect stack after the realloc() works right. */
+  add_unwind_protect (xfree, input_string);
+
+  CHECK_ALRM;
+  if ((nchars > 0) && (input_is_tty == 0) && ignore_delim)     /* read -N */
+    unbuffered_read = 2;
+  else if ((nchars > 0) || (delim != '\n') || input_is_pipe)
+    unbuffered_read = 1;
+
+  if (prompt && edit == 0)
+    {
+      fprintf (stderr, "%s", prompt);
+      fflush (stderr);
+    }
+
+#if defined (__CYGWIN__) && defined (O_TEXT)
+  setmode (0, O_TEXT);
+#endif
+
+  ps2 = 0;
+  for (print_ps2 = eof = retval = 0;;)
+    {
+      CHECK_ALRM;
+
+#if defined (READLINE)
+      if (edit)
+       {
+         if (rlbuf && rlbuf[rlind] == '\0')
+           {
+             xfree (rlbuf);
+             rlbuf = (char *)0;
+           }
+         if (rlbuf == 0)
+           {
+             reading = 1;
+             rlbuf = edit_line (prompt ? prompt : "", itext);
+             reading = 0;
+             rlind = 0;
+           }
+         if (rlbuf == 0)
+           {
+             eof = 1;
+             break;
+           }
+         c = rlbuf[rlind++];
+       }
+      else
+       {
+#endif
+
+      if (print_ps2)
+       {
+         if (ps2 == 0)
+           ps2 = get_string_value ("PS2");
+         fprintf (stderr, "%s", ps2 ? ps2 : "");
+         fflush (stderr);
+         print_ps2 = 0;
+       }
+
+#if 0
+      if (posixly_correct == 0)
+       interrupt_immediately++;
+#endif
+      reading = 1;
+      if (unbuffered_read == 2)
+       retval = posixly_correct ? zreadintr (fd, &c, 1) : zreadn (fd, &c, nchars - nr);
+      else if (unbuffered_read)
+       retval = posixly_correct ? zreadintr (fd, &c, 1) : zread (fd, &c, 1);
+      else
+       retval = posixly_correct ? zreadcintr (fd, &c) : zreadc (fd, &c);
+      reading = 0;
+#if 0
+      if (posixly_correct == 0)
+       interrupt_immediately--;
+#endif
+
+      if (retval <= 0)
+       {
+         if (retval < 0 && errno == EINTR)
+           {
+             lastsig = LASTSIG();
+             if (lastsig == 0)
+               lastsig = trapped_signal_received;
+             run_pending_traps ();     /* because interrupt_immediately is not set */
+           }
+         else
+           lastsig = 0;
+         CHECK_TERMSIG;
+         eof = 1;
+         break;
+       }
+
+      CHECK_ALRM;
+
+#if defined (READLINE)
+       }
+#endif
+
+      CHECK_ALRM;
+      if (i + 4 >= size)       /* XXX was i + 2; use i + 4 for multibyte/read_mbchar */
+       {
+         char *t;
+         t = (char *)xrealloc (input_string, size += 128);
+
+         /* Only need to change unwind-protect if input_string changes */
+         if (t != input_string)
+           {
+             input_string = t;
+             remove_unwind_protect ();
+             add_unwind_protect (xfree, input_string);
+           }
+       }
+
+      /* If the next character is to be accepted verbatim, a backslash
+        newline pair still disappears from the input. */
+      if (pass_next)
+       {
+         pass_next = 0;
+         if (c == '\n')
+           {
+             i--;              /* back up over the CTLESC */
+             if (interactive && input_is_tty && raw == 0)
+               print_ps2 = 1;
+           }
+         else
+           goto add_char;
+         continue;
+       }
+
+      /* This may cause problems if IFS contains CTLESC */
+      if (c == '\\' && raw == 0)
+       {
+         pass_next++;
+         if (skip_ctlesc == 0)
+           {
+             saw_escape++;
+             input_string[i++] = CTLESC;
+           }
+         continue;
+       }
+
+      if ((unsigned char)c == delim)
+       break;
+
+      if (c == '\0' && delim != '\0')
+       continue;               /* skip NUL bytes in input */
+
+      if ((skip_ctlesc == 0 && c == CTLESC) || (skip_ctlnul == 0 && c == CTLNUL))
+       {
+         saw_escape++;
+         input_string[i++] = CTLESC;
+       }
+
+add_char:
+      input_string[i++] = c;
+      CHECK_ALRM;
+
+#if defined (HANDLE_MULTIBYTE)
+      if (nchars > 0 && MB_CUR_MAX > 1 && is_basic (c) == 0)
+       {
+         input_string[i] = '\0';       /* for simplicity and debugging */
+         i += read_mbchar (fd, input_string, i, c, unbuffered_read);
+       }
+#endif
+
+      nr++;
+
+      if (nchars > 0 && nr >= nchars)
+       break;
+    }
+  input_string[i] = '\0';
+  CHECK_ALRM;
+
+  if (retval < 0)
+    {
+      t_errno = errno;
+      if (errno != EINTR)
+       builtin_error (_("read error: %d: %s"), fd, strerror (errno));
+      run_unwind_frame ("read_builtin");
+      return ((t_errno != EINTR) ? EXECUTION_FAILURE : 128+lastsig);
+    }
+
+  if (tmsec > 0 || tmusec > 0)
+    reset_alarm ();
+
+  if (nchars > 0 || delim != '\n')
+    {
+#if defined (READLINE)
+      if (edit)
+       {
+         if (nchars > 0)
+           rl_num_chars_to_read = 0;
+         if (delim != '\n')
+           reset_eol_delim ((char *)NULL);
+       }
+      else
+#endif
+      if (input_is_tty)
+       ttyrestore (&termsave);
+    }
+  else if (silent)
+    ttyrestore (&termsave);
+
+  if (unbuffered_read == 0)
+    zsyncfd (fd);
+
+  discard_unwind_frame ("read_builtin");
+
+  retval = eof ? EXECUTION_FAILURE : EXECUTION_SUCCESS;
+
+assign_vars:
+
+#if defined (ARRAY_VARS)
+  /* If -a was given, take the string read, break it into a list of words,
+     an assign them to `arrayname' in turn. */
+  if (arrayname)
+    {
+      if (legal_identifier (arrayname) == 0)
+       {
+         sh_invalidid (arrayname);
+         xfree (input_string);
+         return (EXECUTION_FAILURE);
+       }
+
+      var = find_or_make_array_variable (arrayname, 1);
+      if (var == 0)
+       {
+         xfree (input_string);
+         return EXECUTION_FAILURE;     /* readonly or noassign */
+       }
+      if (assoc_p (var))
+       {
+          builtin_error (_("%s: cannot convert associative to indexed array"), arrayname);
+         xfree (input_string);
+         return EXECUTION_FAILURE;     /* existing associative array */
+       }
+      else if (invisible_p (var))
+       VUNSETATTR (var, att_invisible);
+      array_flush (array_cell (var));
+
+      alist = list_string (input_string, ifs_chars, 0);
+      if (alist)
+       {
+         if (saw_escape)
+           dequote_list (alist);
+         else
+           word_list_remove_quoted_nulls (alist);
+         assign_array_var_from_word_list (var, alist, 0);
+         dispose_words (alist);
+       }
+      xfree (input_string);
+      return (retval);
+    }
+#endif /* ARRAY_VARS */ 
+
+  /* If there are no variables, save the text of the line read to the
+     variable $REPLY.  ksh93 strips leading and trailing IFS whitespace,
+     so that `read x ; echo "$x"' and `read ; echo "$REPLY"' behave the
+     same way, but I believe that the difference in behaviors is useful
+     enough to not do it.  Without the bash behavior, there is no way
+     to read a line completely without interpretation or modification
+     unless you mess with $IFS (e.g., setting it to the empty string).
+     If you disagree, change the occurrences of `#if 0' to `#if 1' below. */
+  if (list == 0)
+    {
+#if 0
+      orig_input_string = input_string;
+      for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++)
+       ;
+      input_string = t;
+      input_string = strip_trailing_ifs_whitespace (input_string, ifs_chars, saw_escape);
+#endif
+
+      if (saw_escape)
+       {
+         t = dequote_string (input_string);
+         var = bind_variable ("REPLY", t, 0);
+         free (t);
+       }
+      else
+       var = bind_variable ("REPLY", input_string, 0);
+      VUNSETATTR (var, att_invisible);
+
+      xfree (input_string);
+      return (retval);
+    }
+
+  /* This code implements the Posix.2 spec for splitting the words
+     read and assigning them to variables. */
+  orig_input_string = input_string;
+
+  /* Remove IFS white space at the beginning of the input string.  If
+     $IFS is null, no field splitting is performed. */
+  for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++)
+    ;
+  input_string = t;
+  for (; list->next; list = list->next)
+    {
+      varname = list->word->word;
+#if defined (ARRAY_VARS)
+      if (legal_identifier (varname) == 0 && valid_array_reference (varname) == 0)
+#else
+      if (legal_identifier (varname) == 0)
+#endif
+       {
+         sh_invalidid (varname);
+         xfree (orig_input_string);
+         return (EXECUTION_FAILURE);
+       }
+
+      /* If there are more variables than words read from the input,
+        the remaining variables are set to the empty string. */
+      if (*input_string)
+       {
+         /* This call updates INPUT_STRING. */
+         t = get_word_from_string (&input_string, ifs_chars, &e);
+         if (t)
+           *e = '\0';
+         /* Don't bother to remove the CTLESC unless we added one
+            somewhere while reading the string. */
+         if (t && saw_escape)
+           {
+             t1 = dequote_string (t);
+             var = bind_read_variable (varname, t1);
+             xfree (t1);
+           }
+         else
+           var = bind_read_variable (varname, t ? t : "");
+       }
+      else
+       {
+         t = (char *)0;
+         var = bind_read_variable (varname, "");
+       }
+
+      FREE (t);
+      if (var == 0)
+       {
+         xfree (orig_input_string);
+         return (EXECUTION_FAILURE);
+       }
+
+      stupidly_hack_special_variables (varname);
+      VUNSETATTR (var, att_invisible);
+    }
+
+  /* Now assign the rest of the line to the last variable argument. */
+#if defined (ARRAY_VARS)
+  if (legal_identifier (list->word->word) == 0 && valid_array_reference (list->word->word) == 0)
+#else
+  if (legal_identifier (list->word->word) == 0)
+#endif
+    {
+      sh_invalidid (list->word->word);
+      xfree (orig_input_string);
+      return (EXECUTION_FAILURE);
+    }
+
+#if 0
+  /* This has to be done this way rather than using string_list
+     and list_string because Posix.2 says that the last variable gets the
+     remaining words and their intervening separators. */
+  input_string = strip_trailing_ifs_whitespace (input_string, ifs_chars, saw_escape);
+#else
+  /* Check whether or not the number of fields is exactly the same as the
+     number of variables. */
+  tofree = NULL;
+  if (*input_string)
+    {
+      t1 = input_string;
+      t = get_word_from_string (&input_string, ifs_chars, &e);
+      if (*input_string == 0)
+       tofree = input_string = t;
+      else
+       {
+         input_string = strip_trailing_ifs_whitespace (t1, ifs_chars, saw_escape);
+         tofree = t;
+       }
+    }
+#endif
+
+  if (saw_escape && input_string && *input_string)
+    {
+      t = dequote_string (input_string);
+      var = bind_read_variable (list->word->word, t);
+      xfree (t);
+    }
+  else
+    var = bind_read_variable (list->word->word, input_string ? input_string : "");
+
+  if (var)
+    {
+      stupidly_hack_special_variables (list->word->word);
+      VUNSETATTR (var, att_invisible);
+    }
+  else
+    retval = EXECUTION_FAILURE;
+
+  FREE (tofree);
+  xfree (orig_input_string);
+
+  return (retval);
+}
+
+static SHELL_VAR *
+bind_read_variable (name, value)
+     char *name, *value;
+{
+  SHELL_VAR *v;
+
+#if defined (ARRAY_VARS)
+  if (valid_array_reference (name) == 0)
+    v = bind_variable (name, value, 0);
+  else
+    v = assign_array_element (name, value, 0);
+#else /* !ARRAY_VARS */
+  v = bind_variable (name, value, 0);
+#endif /* !ARRAY_VARS */
+  return (v == 0 ? v
+                : ((readonly_p (v) || noassign_p (v)) ? (SHELL_VAR *)NULL : v));
+}
+
+#if defined (HANDLE_MULTIBYTE)
+static int
+read_mbchar (fd, string, ind, ch, unbuffered)
+     int fd;
+     char *string;
+     int ind, ch, unbuffered;
+{
+  char mbchar[MB_LEN_MAX + 1];
+  int i, n, r;
+  char c;
+  size_t ret;
+  mbstate_t ps, ps_back;
+  wchar_t wc;
+
+  memset (&ps, '\0', sizeof (mbstate_t));
+  memset (&ps_back, '\0', sizeof (mbstate_t));
+  
+  mbchar[0] = ch;
+  i = 1;
+  for (n = 0; n <= MB_LEN_MAX; n++)
+    {
+      ps_back = ps;
+      ret = mbrtowc (&wc, mbchar, i, &ps);
+      if (ret == (size_t)-2)
+       {
+         ps = ps_back;
+         /* We don't want to be interrupted during a multibyte char read */
+         if (unbuffered)
+           r = zread (fd, &c, 1);
+         else
+           r = zreadc (fd, &c);
+         if (r < 0)
+           goto mbchar_return;
+         mbchar[i++] = c;      
+         continue;
+       }
+      else if (ret == (size_t)-1 || ret == (size_t)0 || ret > (size_t)0)
+       break;
+    }
+
+mbchar_return:
+  if (i > 1)   /* read a multibyte char */
+    /* mbchar[0] is already string[ind-1] */
+    for (r = 1; r < i; r++)
+      string[ind+r-1] = mbchar[r];
+  return i - 1;
+}
+#endif
+
+
+static void
+ttyrestore (ttp)
+     struct ttsave *ttp;
+{
+  ttsetattr (ttp->fd, ttp->attrs);
+}
+
+#if defined (READLINE)
+static rl_completion_func_t *old_attempted_completion_function = 0;
+static rl_hook_func_t *old_startup_hook;
+static char *deftext;
+
+static void
+reset_attempted_completion_function (cp)
+     char *cp;
+{
+  if (rl_attempted_completion_function == 0 && old_attempted_completion_function)
+    rl_attempted_completion_function = old_attempted_completion_function;
+}
+
+static int
+set_itext ()
+{
+  int r1, r2;
+
+  r1 = r2 = 0;
+  if (old_startup_hook)
+    r1 = (*old_startup_hook) ();
+  if (deftext)
+    {
+      r2 = rl_insert_text (deftext);
+      deftext = (char *)NULL;
+      rl_startup_hook = old_startup_hook;
+      old_startup_hook = (rl_hook_func_t *)NULL;
+    }
+  return (r1 || r2);
+}
+
+static char *
+edit_line (p, itext)
+     char *p;
+     char *itext;
+{
+  char *ret;
+  int len;
+
+  if (bash_readline_initialized == 0)
+    initialize_readline ();
+
+  old_attempted_completion_function = rl_attempted_completion_function;
+  rl_attempted_completion_function = (rl_completion_func_t *)NULL;
+  if (itext)
+    {
+      old_startup_hook = rl_startup_hook;
+      rl_startup_hook = set_itext;
+      deftext = itext;
+    }
+
+  ret = readline (p);
+
+  rl_attempted_completion_function = old_attempted_completion_function;
+  old_attempted_completion_function = (rl_completion_func_t *)NULL;
+
+  if (ret == 0)
+    return ret;
+  len = strlen (ret);
+  ret = (char *)xrealloc (ret, len + 2);
+  ret[len++] = delim;
+  ret[len] = '\0';
+  return ret;
+}
+
+static int old_delim_ctype;
+static rl_command_func_t *old_delim_func;
+static int old_newline_ctype;
+static rl_command_func_t *old_newline_func;
+
+static unsigned char delim_char;
+
+static void
+set_eol_delim (c)
+     int c;
+{
+  Keymap cmap;
+
+  if (bash_readline_initialized == 0)
+    initialize_readline ();
+  cmap = rl_get_keymap ();
+
+  /* Change newline to self-insert */
+  old_newline_ctype = cmap[RETURN].type;
+  old_newline_func =  cmap[RETURN].function;
+  cmap[RETURN].type = ISFUNC;
+  cmap[RETURN].function = rl_insert;
+
+  /* Bind the delimiter character to accept-line. */
+  old_delim_ctype = cmap[c].type;
+  old_delim_func = cmap[c].function;
+  cmap[c].type = ISFUNC;
+  cmap[c].function = rl_newline;
+
+  delim_char = c;
+}
+
+static void
+reset_eol_delim (cp)
+     char *cp;
+{
+  Keymap cmap;
+
+  cmap = rl_get_keymap ();
+
+  cmap[RETURN].type = old_newline_ctype;
+  cmap[RETURN].function = old_newline_func;
+
+  cmap[delim_char].type = old_delim_ctype;
+  cmap[delim_char].function = old_delim_func;
+}
+#endif

diff --git a/configure b/configure
index 91c869da60ea7719d9f8b221ff39fd7d2261e34d..a3ef6123574d724a9d084e50caa9fa720d729301 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac for Bash 4.3, version 4.054.
+# From configure.ac for Bash 4.3, version 4.055.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.68 for bash 4.3-alpha.
 #
@@ -2830,6 +2830,7 @@ sparc-linux*)     opt_bash_malloc=no ;;   # sparc running linux; requires ELF
 *-mirbsd*)     opt_bash_malloc=no ;;   # they claim it needs eight-bit alignment
 *-aix*)                opt_bash_malloc=no ;;   # AIX machines
 *-nextstep*)   opt_bash_malloc=no ;;   # NeXT machines running NeXTstep
+*-openstep*)   opt_bash_malloc=no ;;   # i386/Sparc/HP machines running Openstep
 *-macos*)      opt_bash_malloc=no ;;   # Apple MacOS X
 *-rhapsody*)   opt_bash_malloc=no ;;   # Apple Rhapsody (MacOS X)
 *-darwin*)     opt_bash_malloc=no ;;   # Apple Darwin (MacOS X)
@@ -15830,6 +15831,7 @@ linux*)         LOCAL_LDFLAGS=-rdynamic          # allow dynamic loading
 powerux*)      LOCAL_LIBS="-lgen" ;;
 cygwin*)       LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 opennt*|interix*) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG -DBROKEN_DIRENT_D_INO -D_POSIX_SOURCE -D_ALL_SOURCE -DRECYCLES_PIDS" ;;
+*openstep*)    LOCAL_CFLAGS="-D__APPLE_CC__" ;;
 esac
 
 case "${host_os}-${CC}" in

diff --git a/configure.ac b/configure.ac
index 563ba2916172b09adde4f78265492104bfd08685..27aa19733651c0a05d9ef70e528a7bab0fa1247c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,7 @@ dnl Process this file with autoconf to produce a configure script.
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_REVISION([for Bash 4.3, version 4.054])dnl
+AC_REVISION([for Bash 4.3, version 4.055])dnl
 
 define(bashvers, 4.3)
 define(relstatus, alpha)
@@ -79,6 +79,7 @@ sparc-linux*) opt_bash_malloc=no ;;   # sparc running linux; requires ELF
 *-mirbsd*)     opt_bash_malloc=no ;;   # they claim it needs eight-bit alignment
 *-aix*)                opt_bash_malloc=no ;;   # AIX machines
 *-nextstep*)   opt_bash_malloc=no ;;   # NeXT machines running NeXTstep
+*-openstep*)   opt_bash_malloc=no ;;   # i386/Sparc/HP machines running Openstep
 *-macos*)      opt_bash_malloc=no ;;   # Apple MacOS X
 *-rhapsody*)   opt_bash_malloc=no ;;   # Apple Rhapsody (MacOS X)
 *-darwin*)     opt_bash_malloc=no ;;   # Apple Darwin (MacOS X)
@@ -1075,6 +1076,7 @@ linux*)           LOCAL_LDFLAGS=-rdynamic          # allow dynamic loading
 powerux*)      LOCAL_LIBS="-lgen" ;;
 cygwin*)       LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 opennt*|interix*) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG -DBROKEN_DIRENT_D_INO -D_POSIX_SOURCE -D_ALL_SOURCE -DRECYCLES_PIDS" ;;
+*openstep*)    LOCAL_CFLAGS="-D__APPLE_CC__" ;;
 esac
 
 dnl Stanza for OS/compiler pair-specific flags

diff --git a/jobs.c b/jobs.c
index 9227638c3c3eb56f1e1fe0394ab7db2a35911a4b..472f585fe1dd82292e6fa9ff1dad55048c4a24fa 100644 (file)
--- a/jobs.c
+++ b/jobs.c
@@ -3261,7 +3261,7 @@ waitchld (wpid, block)
       child = find_process (pid, 1, &job);     /* want living procs only */
 
 #if defined (COPROCESS_SUPPORT)
-      coproc_pidchk (pid, status);
+      coproc_pidchk (pid, WSTATUS(status));
 #endif
 
       /* It is not an error to have a child terminate that we did

diff --git a/parse.y b/parse.y
index 98f62645939a72218dea89cb921a48394a64fe8d..61f0f7c5a8eeb1d0b848662bf7cc4d3961795e21 100644 (file)
--- a/parse.y
+++ b/parse.y
@@ -2196,7 +2196,6 @@ shell_getc (remove_quoted_newline)
       /* Let's not let one really really long line blow up memory allocation */
       if (shell_input_line && shell_input_line_size >= 32768)
        {
-itrace("shell_getc: freeing shell_input_line");
          free (shell_input_line);
          shell_input_line = 0;
          shell_input_line_size = 0;
@@ -3247,11 +3246,7 @@ parse_matched_pair (qc, open, close, lenp, flags)
            }
 
          RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
-#if 0
-         if MBTEST(ch == CTLESC || ch == CTLNUL)
-#else
          if MBTEST(ch == CTLESC)
-#endif
            ret[retind++] = CTLESC;
          ret[retind++] = ch;
          continue;
@@ -3550,10 +3545,10 @@ eof_error:
          ret[retind++] = ch;
 
          if ((tflags & LEX_INCOMMENT) && ch == '\n')
-{
+           {
 /*itrace("parse_comsub:%d: lex_incomment -> 0 ch = `%c'", line_number, ch);*/
-           tflags &= ~LEX_INCOMMENT;
-}
+             tflags &= ~LEX_INCOMMENT;
+           }
 
          continue;
        }
@@ -3570,11 +3565,7 @@ eof_error:
            }
 
          RESIZE_MALLOCED_BUFFER (ret, retind, 2, retsize, 64);
-#if 0
-         if MBTEST(ch == CTLESC || ch == CTLNUL)
-#else
          if MBTEST(ch == CTLESC)
-#endif
            ret[retind++] = CTLESC;
          ret[retind++] = ch;
          continue;
@@ -3699,15 +3690,15 @@ eof_error:
          else if MBTEST(lex_rwlen == 4 && shellbreak (ch))
            {
              if (STREQN (ret + retind - 4, "case", 4))
-{
-               tflags |= LEX_INCASE;
+               {
+                 tflags |= LEX_INCASE;
 /*itrace("parse_comsub:%d: found `case', lex_incase -> 1 lex_reswdok -> 0", line_number);*/
-}
+               }
              else if (STREQN (ret + retind - 4, "esac", 4))
-{
-               tflags &= ~LEX_INCASE;
+               {
+                 tflags &= ~LEX_INCASE;
 /*itrace("parse_comsub:%d: found `esac', lex_incase -> 0 lex_reswdok -> 0", line_number);*/
-}              
+               }
              tflags &= ~LEX_RESWDOK;
            }
          else if MBTEST((tflags & LEX_CKCOMMENT) && ch == '#' && (lex_rwlen == 0 || ((tflags & LEX_INWORD) && lex_wlen == 0)))
@@ -3719,33 +3710,33 @@ eof_error:
                          (isblank(ch) || ch == '\n') &&
                          lex_rwlen == 2 &&
                          STREQN (ret + retind - 2, "do", 2))
-{
+           {
 /*itrace("parse_comsub:%d: lex_incase == 1 found `%c', found \"do\"", line_number, ch);*/
-           lex_rwlen = 0;
-}
+             lex_rwlen = 0;
+           }
          else if MBTEST((tflags & LEX_INCASE) && ch != '\n')
            /* If we can read a reserved word and we're in case, we're at the
               point where we can read a new pattern list or an esac.  We
               handle the esac case above.  If we read a newline, we want to
               leave LEX_RESWDOK alone.  If we read anything else, we want to
               turn off LEX_RESWDOK, since we're going to read a pattern list. */
-{
-           tflags &= ~LEX_RESWDOK;
+           {
+             tflags &= ~LEX_RESWDOK;
 /*itrace("parse_comsub:%d: lex_incase == 1 found `%c', lex_reswordok -> 0", line_number, ch);*/
-}
+           }
          else if MBTEST(shellbreak (ch) == 0)
-{
-           tflags &= ~LEX_RESWDOK;
+           {
+             tflags &= ~LEX_RESWDOK;
 /*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/
-}
+           }
 #if 0
          /* If we find a space or tab but have read something and it's not
             `do', turn off the reserved-word-ok flag */
          else if MBTEST(isblank (ch) && lex_rwlen > 0)
-{
-           tflags &= ~LEX_RESWDOK;
+           {
+             tflags &= ~LEX_RESWDOK;
 /*itrace("parse_comsub:%d: found `%c', lex_reswordok -> 0", line_number, ch);*/
-}
+           }
 #endif
        }
 
@@ -3784,10 +3775,10 @@ eof_error:
            ch = peekc;         /* fall through and continue XXX */
        }
       else if MBTEST((tflags & LEX_CKCOMMENT) && (tflags & LEX_INCOMMENT) == 0 && ch == '#' && (((tflags & LEX_RESWDOK) && lex_rwlen == 0) || ((tflags & LEX_INWORD) && lex_wlen == 0)))
-{
+       {
 /*itrace("parse_comsub:%d: lex_incomment -> 1 (%d)", line_number, __LINE__);*/
-       tflags |= LEX_INCOMMENT;
-}
+         tflags |= LEX_INCOMMENT;
+       }
 
       if MBTEST(ch == CTLESC || ch == CTLNUL)  /* special shell escapes */
        {
@@ -3801,15 +3792,15 @@ eof_error:
         tflags &= ~LEX_INCASE;         /* XXX */
 #endif
       else if MBTEST(ch == close && (tflags & LEX_INCASE) == 0)                /* ending delimiter */
-{
-       count--;
+       {
+         count--;
 /*itrace("parse_comsub:%d: found close: count = %d", line_number, count);*/
-}
+       }
       else if MBTEST(((flags & P_FIRSTCLOSE) == 0) && (tflags & LEX_INCASE) == 0 && ch == open)        /* nested begin */
-{
-       count++;
+       {
+         count++;
 /*itrace("parse_comsub:%d: found open: count = %d", line_number, count);*/
-}
+       }
 
       /* Add this character. */
       RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);

diff --git a/quit.h b/quit.h
index 8df01e1fe9bcf3aafa0918cc54980e88a6002d72..7d447ab2b9b38cd05623a058c9e6527e22f47e61 100644 (file)
--- a/quit.h
+++ b/quit.h
@@ -36,6 +36,12 @@ extern volatile int terminating_signal;
     if (interrupt_state) throw_to_top_level (); \
   } while (0)
 
+#define CHECK_ALRM \
+  do { \
+    if (sigalrm_seen) \
+      longjmp (alrmbuf, 1); \
+  } while (0)
+
 #define SETINTERRUPT interrupt_state = 1
 #define CLRINTERRUPT interrupt_state = 0
 

diff --git a/quit.h~ b/quit.h~
new file mode 100644 (file)
index 0000000..2f127da
--- /dev/null
+++ b/quit.h~
@@ -0,0 +1,70 @@
+/* quit.h -- How to handle SIGINT gracefully. */
+
+/* Copyright (C) 1993-2012 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if !defined (_QUIT_H_)
+#define _QUIT_H_
+
+/* Non-zero means SIGINT has already ocurred. */
+extern volatile int interrupt_state;
+extern volatile int terminating_signal;
+
+/* Macro to call a great deal.  SIGINT just sets the interrupt_state variable.
+   When it is safe, put QUIT in the code, and the "interrupt" will take
+   place.  The same scheme is used for terminating signals (e.g., SIGHUP)
+   and the terminating_signal variable.  That calls a function which will
+   end up exiting the shell. */
+#define QUIT \
+  do { \
+    if (terminating_signal) termsig_handler (terminating_signal); \
+    if (interrupt_state) throw_to_top_level (); \
+  } while (0)
+
+#define CHECK_ALRM \
+  do { \
+if (sigalrm_seen) \
+  itrace("CHECK_ALRM: sigalrm_seen = %d", sigalrm_seen); \
+    if (sigalrm_seen) \
+      longjmp (alrmbuf, 1); \
+  } while (0)
+
+#define SETINTERRUPT interrupt_state = 1
+#define CLRINTERRUPT interrupt_state = 0
+
+#define ADDINTERRUPT interrupt_state++
+#define DELINTERRUPT interrupt_state--
+
+/* The same sort of thing, this time just for signals that would ordinarily
+   cause the shell to terminate. */
+
+#define CHECK_TERMSIG \
+  do { \
+    if (terminating_signal) termsig_handler (terminating_signal); \
+  } while (0)
+
+#define LASTSIG() \
+  (terminating_signal ? terminating_signal : (interrupt_state ? SIGINT : 0))
+
+#define CHECK_WAIT_INTR \
+  do { \
+    if (wait_signal_received && this_shell_builtin && (this_shell_builtin == wait_builtin)) \
+      longjmp (wait_intr_buf, 1); \
+  } while (0)
+
+#endif /* _QUIT_H_ */

diff --git a/test.c b/test.c
index 786d7f07a9f6304776eea0a01d9293fd6fab5084..016763a077d9cf8c33f3efb9b5ad0a5bf40f38a6 100644 (file)
--- a/test.c
+++ b/test.c
@@ -395,9 +395,11 @@ binary_test (op, arg1, arg2, flags)
     return (patmatch ? patcomp (arg1, arg2, EQ) : STREQ (arg1, arg2));
   else if ((op[0] == '>' || op[0] == '<') && op[1] == '\0')
     {
+#if defined (HAVE_STRCOLL)
       if (shell_compatibility_level > 40 && flags & TEST_LOCALE)
        return ((op[0] == '>') ? (strcoll (arg1, arg2) > 0) : (strcoll (arg1, arg2) < 0));
       else
+#endif
        return ((op[0] == '>') ? (strcmp (arg1, arg2) > 0) : (strcmp (arg1, arg2) < 0));
     }
   else if (op[0] == '!' && op[1] == '=' && op[2] == '\0')

diff --git a/trap.c b/trap.c
index d60a7fb45e71f484cbe105d6c14f02f4932695fd..b030747ba37156b90edb4b4fc94974cf2f89efb2 100644 (file)
--- a/trap.c
+++ b/trap.c
@@ -88,6 +88,9 @@ static void reset_or_restore_signal_handlers __P((sh_resetsig_func_t *));
 extern int last_command_exit_value;
 extern int line_number;
 
+extern int sigalrm_seen;
+extern procenv_t alrmbuf;
+
 extern char *this_command_name;
 extern sh_builtin_func_t *this_shell_builtin;
 extern procenv_t wait_intr_buf;
@@ -456,18 +459,20 @@ any_signals_trapped ()
   return -1;
 }
 
-/* Convenience functions the rest of the shell can use */
 void
-check_signals_and_traps ()
+check_signals ()
 {
+  CHECK_ALRM;          /* set by the read builtin */
   QUIT;
-  run_pending_traps ();
 }
 
+/* Convenience functions the rest of the shell can use */
 void
-check_signals ()
+check_signals_and_traps ()
 {
-  QUIT;
+  check_signals ();
+
+  run_pending_traps ();
 }
 
 #if defined (JOB_CONTROL) && defined (SIGCHLD)

diff --git a/trap.c~ b/trap.c~
new file mode 100644 (file)
index 0000000..dcc3851
--- /dev/null
+++ b/trap.c~
@@ -0,0 +1,1211 @@
+/* trap.c -- Not the trap command, but useful functions for manipulating
+   those objects.  The trap command is in builtins/trap.def. */
+
+/* Copyright (C) 1987-2013 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include "bashtypes.h"
+#include "bashansi.h"
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "bashintl.h"
+
+#include <signal.h>
+
+#include "trap.h"
+
+#include "shell.h"
+#include "flags.h"
+#include "input.h"     /* for save_token_state, restore_token_state */
+#include "jobs.h"
+#include "signames.h"
+#include "builtins.h"
+#include "builtins/common.h"
+#include "builtins/builtext.h"
+
+#if defined (READLINE)
+#  include <readline/readline.h>
+#  include "bashline.h"
+#endif
+
+#ifndef errno
+extern int errno;
+#endif
+
+/* Flags which describe the current handling state of a signal. */
+#define SIG_INHERITED   0x0    /* Value inherited from parent. */
+#define SIG_TRAPPED     0x1    /* Currently trapped. */
+#define SIG_HARD_IGNORE 0x2    /* Signal was ignored on shell entry. */
+#define SIG_SPECIAL     0x4    /* Treat this signal specially. */
+#define SIG_NO_TRAP     0x8    /* Signal cannot be trapped. */
+#define SIG_INPROGRESS 0x10    /* Signal handler currently executing. */
+#define SIG_CHANGED    0x20    /* Trap value changed in trap handler. */
+#define SIG_IGNORED    0x40    /* The signal is currently being ignored. */
+
+#define SPECIAL_TRAP(s)        ((s) == EXIT_TRAP || (s) == DEBUG_TRAP || (s) == ERROR_TRAP || (s) == RETURN_TRAP)
+
+/* An array of such flags, one for each signal, describing what the
+   shell will do with a signal.  DEBUG_TRAP == NSIG; some code below
+   assumes this. */
+static int sigmodes[BASH_NSIG];
+
+static void free_trap_command __P((int));
+static void change_signal __P((int, char *));
+
+static void get_original_signal __P((int));
+
+static int _run_trap_internal __P((int, char *));
+
+static void free_trap_string __P((int));
+static void reset_signal __P((int));
+static void restore_signal __P((int));
+static void reset_or_restore_signal_handlers __P((sh_resetsig_func_t *));
+
+/* Variables used here but defined in other files. */
+extern int last_command_exit_value;
+extern int line_number;
+
+extern int sigalrm_seen;
+extern procenv_t alrmbuf;
+
+extern char *this_command_name;
+extern sh_builtin_func_t *this_shell_builtin;
+extern procenv_t wait_intr_buf;
+extern int return_catch_flag, return_catch_value;
+extern int subshell_level;
+extern WORD_LIST *subst_assign_varlist;
+
+/* The list of things to do originally, before we started trapping. */
+SigHandler *original_signals[NSIG];
+
+/* For each signal, a slot for a string, which is a command to be
+   executed when that signal is recieved.  The slot can also contain
+   DEFAULT_SIG, which means do whatever you were going to do before
+   you were so rudely interrupted, or IGNORE_SIG, which says ignore
+   this signal. */
+char *trap_list[BASH_NSIG];
+
+/* A bitmap of signals received for which we have trap handlers. */
+int pending_traps[NSIG];
+
+/* Set to the number of the signal we're running the trap for + 1.
+   Used in execute_cmd.c and builtins/common.c to clean up when
+   parse_and_execute does not return normally after executing the
+   trap command (e.g., when `return' is executed in the trap command). */
+int running_trap;
+
+/* Set to last_command_exit_value before running a trap. */
+int trap_saved_exit_value;
+
+/* The (trapped) signal received while executing in the `wait' builtin */
+int wait_signal_received;
+
+int trapped_signal_received;
+
+#define GETORIGSIG(sig) \
+  do { \
+    original_signals[sig] = (SigHandler *)set_signal_handler (sig, SIG_DFL); \
+    set_signal_handler (sig, original_signals[sig]); \
+    if (original_signals[sig] == SIG_IGN) \
+      sigmodes[sig] |= SIG_HARD_IGNORE; \
+  } while (0)
+
+#define SETORIGSIG(sig,handler) \
+  do { \
+    original_signals[sig] = handler; \
+    if (original_signals[sig] == SIG_IGN) \
+      sigmodes[sig] |= SIG_HARD_IGNORE; \
+  } while (0)
+
+#define GET_ORIGINAL_SIGNAL(sig) \
+  if (sig && sig < NSIG && original_signals[sig] == IMPOSSIBLE_TRAP_HANDLER) \
+    GETORIGSIG(sig)
+
+void
+initialize_traps ()
+{
+  register int i;
+
+  initialize_signames();
+
+  trap_list[EXIT_TRAP] = trap_list[DEBUG_TRAP] = trap_list[ERROR_TRAP] = trap_list[RETURN_TRAP] = (char *)NULL;
+  sigmodes[EXIT_TRAP] = sigmodes[DEBUG_TRAP] = sigmodes[ERROR_TRAP] = sigmodes[RETURN_TRAP] = SIG_INHERITED;
+  original_signals[EXIT_TRAP] = IMPOSSIBLE_TRAP_HANDLER;
+
+  for (i = 1; i < NSIG; i++)
+    {
+      pending_traps[i] = 0;
+      trap_list[i] = (char *)DEFAULT_SIG;
+      sigmodes[i] = SIG_INHERITED;     /* XXX - only set, not used */
+      original_signals[i] = IMPOSSIBLE_TRAP_HANDLER;
+    }
+
+  /* Show which signals are treated specially by the shell. */
+#if defined (SIGCHLD)
+  GETORIGSIG (SIGCHLD);
+  sigmodes[SIGCHLD] |= (SIG_SPECIAL | SIG_NO_TRAP);
+#endif /* SIGCHLD */
+
+  GETORIGSIG (SIGINT);
+  sigmodes[SIGINT] |= SIG_SPECIAL;
+
+#if defined (__BEOS__)
+  /* BeOS sets SIGINT to SIG_IGN! */
+  original_signals[SIGINT] = SIG_DFL;
+  sigmodes[SIGINT] &= ~SIG_HARD_IGNORE;
+#endif
+
+  GETORIGSIG (SIGQUIT);
+  sigmodes[SIGQUIT] |= SIG_SPECIAL;
+
+  if (interactive)
+    {
+      GETORIGSIG (SIGTERM);
+      sigmodes[SIGTERM] |= SIG_SPECIAL;
+    }
+}
+
+#ifdef DEBUG
+/* Return a printable representation of the trap handler for SIG. */
+static char *
+trap_handler_string (sig)
+     int sig;
+{
+  if (trap_list[sig] == (char *)DEFAULT_SIG)
+    return "DEFAULT_SIG";
+  else if (trap_list[sig] == (char *)IGNORE_SIG)
+    return "IGNORE_SIG";
+  else if (trap_list[sig] == (char *)IMPOSSIBLE_TRAP_HANDLER)
+    return "IMPOSSIBLE_TRAP_HANDLER";
+  else if (trap_list[sig])
+    return trap_list[sig];
+  else
+    return "NULL";
+}
+#endif
+
+/* Return the print name of this signal. */
+char *
+signal_name (sig)
+     int sig;
+{
+  char *ret;
+
+  /* on cygwin32, signal_names[sig] could be null */
+  ret = (sig >= BASH_NSIG || sig < 0 || signal_names[sig] == NULL)
+       ? _("invalid signal number")
+       : signal_names[sig];
+
+  return ret;
+}
+
+/* Turn a string into a signal number, or a number into
+   a signal number.  If STRING is "2", "SIGINT", or "INT",
+   then (int)2 is returned.  Return NO_SIG if STRING doesn't
+   contain a valid signal descriptor. */
+int
+decode_signal (string, flags)
+     char *string;
+     int flags;
+{
+  intmax_t sig;
+  char *name;
+
+  if (legal_number (string, &sig))
+    return ((sig >= 0 && sig < NSIG) ? (int)sig : NO_SIG);
+
+  /* A leading `SIG' may be omitted. */
+  for (sig = 0; sig < BASH_NSIG; sig++)
+    {
+      name = signal_names[sig];
+      if (name == 0 || name[0] == '\0')
+       continue;
+
+      /* Check name without the SIG prefix first case sensitivly or
+        insensitively depending on whether flags includes DSIG_NOCASE */
+      if (STREQN (name, "SIG", 3))
+       {
+         name += 3;
+
+         if ((flags & DSIG_NOCASE) && strcasecmp (string, name) == 0)
+           return ((int)sig);
+         else if ((flags & DSIG_NOCASE) == 0 && strcmp (string, name) == 0)
+           return ((int)sig);
+         /* If we can't use the `SIG' prefix to match, punt on this
+            name now. */
+         else if ((flags & DSIG_SIGPREFIX) == 0)
+           continue;
+       }
+
+      /* Check name with SIG prefix case sensitively or insensitively
+        depending on whether flags includes DSIG_NOCASE */
+      name = signal_names[sig];
+      if ((flags & DSIG_NOCASE) && strcasecmp (string, name) == 0)
+       return ((int)sig);
+      else if ((flags & DSIG_NOCASE) == 0 && strcmp (string, name) == 0)
+       return ((int)sig);
+    }
+
+  return (NO_SIG);
+}
+
+/* Non-zero when we catch a trapped signal. */
+static int catch_flag;
+
+void
+run_pending_traps ()
+{
+  register int sig;
+  int old_exit_value, *token_state;
+  WORD_LIST *save_subst_varlist;
+#if defined (ARRAY_VARS)
+  ARRAY *ps;
+#endif
+
+  if (catch_flag == 0)         /* simple optimization */
+    return;
+
+  catch_flag = trapped_signal_received = 0;
+
+  /* Preserve $? when running trap. */
+  old_exit_value = last_command_exit_value;
+#if defined (ARRAY_VARS)
+  ps = save_pipestatus_array ();
+#endif
+
+  for (sig = 1; sig < NSIG; sig++)
+    {
+      /* XXX this could be made into a counter by using
+        while (pending_traps[sig]--) instead of the if statement. */
+      if (pending_traps[sig])
+       {
+         sigset_t set, oset;
+
+         BLOCK_SIGNAL (sig, set, oset);
+
+         if (sig == SIGINT)
+           {
+             run_interrupt_trap ();
+             CLRINTERRUPT;
+           }
+#if defined (JOB_CONTROL) && defined (SIGCHLD)
+         else if (sig == SIGCHLD &&
+                  trap_list[SIGCHLD] != (char *)IMPOSSIBLE_TRAP_HANDLER &&
+                  (sigmodes[SIGCHLD] & SIG_INPROGRESS) == 0)
+           {
+             sigmodes[SIGCHLD] |= SIG_INPROGRESS;
+             run_sigchld_trap (pending_traps[sig]);    /* use as counter */
+             sigmodes[SIGCHLD] &= ~SIG_INPROGRESS;
+           }
+         else if (sig == SIGCHLD &&
+                  trap_list[SIGCHLD] == (char *)IMPOSSIBLE_TRAP_HANDLER &&
+                  (sigmodes[SIGCHLD] & SIG_INPROGRESS) != 0)
+           {
+             /* This can happen when run_pending_traps is called while
+                running a SIGCHLD trap handler. */
+             UNBLOCK_SIGNAL (oset);
+             continue;                                 /* XXX */
+           }
+#endif
+         else if (trap_list[sig] == (char *)DEFAULT_SIG ||
+                  trap_list[sig] == (char *)IGNORE_SIG ||
+                  trap_list[sig] == (char *)IMPOSSIBLE_TRAP_HANDLER)
+           {
+             /* This is possible due to a race condition.  Say a bash
+                process has SIGTERM trapped.  A subshell is spawned
+                using { list; } & and the parent does something and kills
+                the subshell with SIGTERM.  It's possible for the subshell
+                to set pending_traps[SIGTERM] to 1 before the code in
+                execute_cmd.c eventually calls restore_original_signals
+                to reset the SIGTERM signal handler in the subshell.  The
+                next time run_pending_traps is called, pending_traps[SIGTERM]
+                will be 1, but the trap handler in trap_list[SIGTERM] will
+                be invalid (probably DEFAULT_SIG, but it could be IGNORE_SIG).
+                Unless we catch this, the subshell will dump core when
+                trap_list[SIGTERM] == DEFAULT_SIG, because DEFAULT_SIG is
+                usually 0x0. */
+             internal_warning (_("run_pending_traps: bad value in trap_list[%d]: %p"),
+                               sig, trap_list[sig]);
+             if (trap_list[sig] == (char *)DEFAULT_SIG)
+               {
+                 internal_warning (_("run_pending_traps: signal handler is SIG_DFL, resending %d (%s) to myself"), sig, signal_name (sig));
+                 kill (getpid (), sig);
+               }
+           }
+         else
+           {
+             token_state = save_token_state ();
+             save_subst_varlist = subst_assign_varlist;
+             subst_assign_varlist = 0;
+
+             evalstring (savestring (trap_list[sig]), "trap", SEVAL_NONINT|SEVAL_NOHIST|SEVAL_RESETLINE);
+             restore_token_state (token_state);
+             free (token_state);
+
+             subst_assign_varlist = save_subst_varlist;
+           }
+
+         pending_traps[sig] = 0;
+
+         UNBLOCK_SIGNAL (oset);
+       }
+    }
+
+#if defined (ARRAY_VARS)
+  restore_pipestatus_array (ps);
+#endif
+  last_command_exit_value = old_exit_value;
+}
+
+sighandler
+trap_handler (sig)
+     int sig;
+{
+  int oerrno;
+
+  if ((sigmodes[sig] & SIG_TRAPPED) == 0)
+    {
+#if defined (DEBUG)
+      internal_warning ("trap_handler: signal %d: signal not trapped", sig);
+#endif
+      SIGRETURN (0);
+    }
+
+  if ((sig >= NSIG) ||
+      (trap_list[sig] == (char *)DEFAULT_SIG) ||
+      (trap_list[sig] == (char *)IGNORE_SIG))
+    programming_error (_("trap_handler: bad signal %d"), sig);
+  else
+    {
+      oerrno = errno;
+#if defined (MUST_REINSTALL_SIGHANDLERS)
+#  if defined (JOB_CONTROL) && defined (SIGCHLD)
+      if (sig != SIGCHLD)
+#  endif /* JOB_CONTROL && SIGCHLD */
+      set_signal_handler (sig, trap_handler);
+#endif /* MUST_REINSTALL_SIGHANDLERS */
+
+      catch_flag = 1;
+      pending_traps[sig]++;
+
+      trapped_signal_received = sig;
+
+      if (this_shell_builtin && (this_shell_builtin == wait_builtin))
+       {
+         wait_signal_received = sig;
+         if (interrupt_immediately)
+           longjmp (wait_intr_buf, 1);
+       }
+
+#if defined (READLINE)
+      /* Set the event hook so readline will call it after the signal handlers
+        finish executing, so if this interrupted character input we can get
+        quick response. */
+      if (RL_ISSTATE (RL_STATE_SIGHANDLER) && interrupt_immediately == 0)
+        bashline_set_event_hook ();
+#endif
+
+      if (interrupt_immediately)
+       run_pending_traps ();
+
+      errno = oerrno;
+    }
+
+  SIGRETURN (0);
+}
+
+int
+first_pending_trap ()
+{
+  register int i;
+
+  for (i = 1; i < NSIG; i++)
+    if (pending_traps[i])
+      return i;
+  return -1;
+}
+
+int
+any_signals_trapped ()
+{
+  register int i;
+
+  for (i = 1; i < NSIG; i++)
+    if (sigmodes[i] & SIG_TRAPPED)
+      return i;
+  return -1;
+}
+
+/* Convenience functions the rest of the shell can use */
+void
+check_signals_and_traps ()
+{
+itrace("check_signals_and_traps: sigalrm_seen = %d", sigalrm_seen);
+  CHECK_ALRM;
+
+  QUIT;
+  run_pending_traps ();
+}
+
+void
+check_signals ()
+{
+  CHECK_ALRM;          /* set by the read builtin */
+  QUIT;
+}
+
+#if defined (JOB_CONTROL) && defined (SIGCHLD)
+
+#ifdef INCLUDE_UNUSED
+/* Make COMMAND_STRING be executed when SIGCHLD is caught. */
+void
+set_sigchld_trap (command_string)
+     char *command_string;
+{
+  set_signal (SIGCHLD, command_string);
+}
+#endif
+
+/* Make COMMAND_STRING be executed when SIGCHLD is caught iff SIGCHLD
+   is not already trapped.  IMPOSSIBLE_TRAP_HANDLER is used as a sentinel
+   to make sure that a SIGCHLD trap handler run via run_sigchld_trap can
+   reset the disposition to the default and not have the original signal
+   accidentally restored, undoing the user's command. */
+void
+maybe_set_sigchld_trap (command_string)
+     char *command_string;
+{
+  if ((sigmodes[SIGCHLD] & SIG_TRAPPED) == 0 && trap_list[SIGCHLD] == (char *)IMPOSSIBLE_TRAP_HANDLER)
+    set_signal (SIGCHLD, command_string);
+}
+
+/* Temporarily set the SIGCHLD trap string to IMPOSSIBLE_TRAP_HANDLER.  Used
+   as a sentinel in run_sigchld_trap and maybe_set_sigchld_trap to see whether
+   or not a SIGCHLD trap handler reset SIGCHLD disposition to the default. */
+void
+set_impossible_sigchld_trap ()
+{
+  restore_default_signal (SIGCHLD);
+  change_signal (SIGCHLD, (char *)IMPOSSIBLE_TRAP_HANDLER);
+  sigmodes[SIGCHLD] &= ~SIG_TRAPPED;   /* maybe_set_sigchld_trap checks this */
+}
+
+/* Act as if we received SIGCHLD NCHILD times and increment
+   pending_traps[SIGCHLD] by that amount.  This allows us to still run the
+   SIGCHLD trap once for each exited child. */
+void
+queue_sigchld_trap (nchild)
+     int nchild;
+{
+  if (nchild > 0)
+    {
+      catch_flag = 1;
+      pending_traps[SIGCHLD] += nchild;
+      trapped_signal_received = SIGCHLD;
+    }
+}
+#endif /* JOB_CONTROL && SIGCHLD */
+
+void
+set_debug_trap (command)
+     char *command;
+{
+  set_signal (DEBUG_TRAP, command);
+}
+
+void
+set_error_trap (command)
+     char *command;
+{
+  set_signal (ERROR_TRAP, command);
+}
+
+void
+set_return_trap (command)
+     char *command;
+{
+  set_signal (RETURN_TRAP, command);
+}
+
+#ifdef INCLUDE_UNUSED
+void
+set_sigint_trap (command)
+     char *command;
+{
+  set_signal (SIGINT, command);
+}
+#endif
+
+/* Reset the SIGINT handler so that subshells that are doing `shellsy'
+   things, like waiting for command substitution or executing commands
+   in explicit subshells ( ( cmd ) ), can catch interrupts properly. */
+SigHandler *
+set_sigint_handler ()
+{
+  if (sigmodes[SIGINT] & SIG_HARD_IGNORE)
+    return ((SigHandler *)SIG_IGN);
+
+  else if (sigmodes[SIGINT] & SIG_IGNORED)
+    return ((SigHandler *)set_signal_handler (SIGINT, SIG_IGN)); /* XXX */
+
+  else if (sigmodes[SIGINT] & SIG_TRAPPED)
+    return ((SigHandler *)set_signal_handler (SIGINT, trap_handler));
+
+  /* The signal is not trapped, so set the handler to the shell's special
+     interrupt handler. */
+  else if (interactive)        /* XXX - was interactive_shell */
+    return (set_signal_handler (SIGINT, sigint_sighandler));
+  else
+    return (set_signal_handler (SIGINT, termsig_sighandler));
+}
+
+/* Return the correct handler for signal SIG according to the values in
+   sigmodes[SIG]. */
+SigHandler *
+trap_to_sighandler (sig)
+     int sig;
+{
+  if (sigmodes[sig] & (SIG_IGNORED|SIG_HARD_IGNORE))
+    return (SIG_IGN);
+  else if (sigmodes[sig] & SIG_TRAPPED)
+    return (trap_handler);
+  else
+    return (SIG_DFL);
+}
+
+/* Set SIG to call STRING as a command. */
+void
+set_signal (sig, string)
+     int sig;
+     char *string;
+{
+  sigset_t set, oset;
+
+  if (SPECIAL_TRAP (sig))
+    {
+      change_signal (sig, savestring (string));
+      if (sig == EXIT_TRAP && interactive == 0)
+       initialize_terminating_signals ();
+      return;
+    }
+
+  /* A signal ignored on entry to the shell cannot be trapped or reset, but
+     no error is reported when attempting to do so.  -- Posix.2 */
+  if (sigmodes[sig] & SIG_HARD_IGNORE)
+    return;
+
+  /* Make sure we have original_signals[sig] if the signal has not yet
+     been trapped. */
+  if ((sigmodes[sig] & SIG_TRAPPED) == 0)
+    {
+      /* If we aren't sure of the original value, check it. */
+      if (original_signals[sig] == IMPOSSIBLE_TRAP_HANDLER)
+        GETORIGSIG (sig);
+      if (original_signals[sig] == SIG_IGN)
+       return;
+    }
+
+  /* Only change the system signal handler if SIG_NO_TRAP is not set.
+     The trap command string is changed in either case.  The shell signal
+     handlers for SIGINT and SIGCHLD run the user specified traps in an
+     environment in which it is safe to do so. */
+  if ((sigmodes[sig] & SIG_NO_TRAP) == 0)
+    {
+      BLOCK_SIGNAL (sig, set, oset);
+      change_signal (sig, savestring (string));
+      set_signal_handler (sig, trap_handler);
+      UNBLOCK_SIGNAL (oset);
+    }
+  else
+    change_signal (sig, savestring (string));
+}
+
+static void
+free_trap_command (sig)
+     int sig;
+{
+  if ((sigmodes[sig] & SIG_TRAPPED) && trap_list[sig] &&
+      (trap_list[sig] != (char *)IGNORE_SIG) &&
+      (trap_list[sig] != (char *)DEFAULT_SIG) &&
+      (trap_list[sig] != (char *)IMPOSSIBLE_TRAP_HANDLER))
+    free (trap_list[sig]);
+}
+
+/* If SIG has a string assigned to it, get rid of it.  Then give it
+   VALUE. */
+static void
+change_signal (sig, value)
+     int sig;
+     char *value;
+{
+  if ((sigmodes[sig] & SIG_INPROGRESS) == 0)
+    free_trap_command (sig);
+  trap_list[sig] = value;
+
+  sigmodes[sig] |= SIG_TRAPPED;
+  if (value == (char *)IGNORE_SIG)
+    sigmodes[sig] |= SIG_IGNORED;
+  else
+    sigmodes[sig] &= ~SIG_IGNORED;
+  if (sigmodes[sig] & SIG_INPROGRESS)
+    sigmodes[sig] |= SIG_CHANGED;
+}
+
+static void
+get_original_signal (sig)
+     int sig;
+{
+  /* If we aren't sure the of the original value, then get it. */
+  if (sig > 0 && sig < NSIG && original_signals[sig] == (SigHandler *)IMPOSSIBLE_TRAP_HANDLER)
+    GETORIGSIG (sig);
+}
+
+void
+get_all_original_signals ()
+{
+  register int i;
+
+  for (i = 1; i < NSIG; i++)
+    GET_ORIGINAL_SIGNAL (i);
+}
+
+void
+set_original_signal (sig, handler)
+     int sig;
+     SigHandler *handler;
+{
+  if (sig > 0 && sig < NSIG && original_signals[sig] == (SigHandler *)IMPOSSIBLE_TRAP_HANDLER)
+    SETORIGSIG (sig, handler);
+}
+
+/* Restore the default action for SIG; i.e., the action the shell
+   would have taken before you used the trap command.  This is called
+   from trap_builtin (), which takes care to restore the handlers for
+   the signals the shell treats specially. */
+void
+restore_default_signal (sig)
+     int sig;
+{
+  if (SPECIAL_TRAP (sig))
+    {
+      if ((sig != DEBUG_TRAP && sig != ERROR_TRAP && sig != RETURN_TRAP) ||
+         (sigmodes[sig] & SIG_INPROGRESS) == 0)
+       free_trap_command (sig);
+      trap_list[sig] = (char *)NULL;
+      sigmodes[sig] &= ~SIG_TRAPPED;
+      if (sigmodes[sig] & SIG_INPROGRESS)
+       sigmodes[sig] |= SIG_CHANGED;
+      return;
+    }
+
+  GET_ORIGINAL_SIGNAL (sig);
+
+  /* A signal ignored on entry to the shell cannot be trapped or reset, but
+     no error is reported when attempting to do so.  Thanks Posix.2. */
+  if (sigmodes[sig] & SIG_HARD_IGNORE)
+    return;
+
+  /* If we aren't trapping this signal, don't bother doing anything else. */
+  if ((sigmodes[sig] & SIG_TRAPPED) == 0)
+    return;
+
+  /* Only change the signal handler for SIG if it allows it. */
+  if ((sigmodes[sig] & SIG_NO_TRAP) == 0)
+    set_signal_handler (sig, original_signals[sig]);
+
+  /* Change the trap command in either case. */
+  change_signal (sig, (char *)DEFAULT_SIG);
+
+  /* Mark the signal as no longer trapped. */
+  sigmodes[sig] &= ~SIG_TRAPPED;
+}
+
+/* Make this signal be ignored. */
+void
+ignore_signal (sig)
+     int sig;
+{
+  if (SPECIAL_TRAP (sig) && ((sigmodes[sig] & SIG_IGNORED) == 0))
+    {
+      change_signal (sig, (char *)IGNORE_SIG);
+      return;
+    }
+
+  GET_ORIGINAL_SIGNAL (sig);
+
+  /* A signal ignored on entry to the shell cannot be trapped or reset.
+     No error is reported when the user attempts to do so. */
+  if (sigmodes[sig] & SIG_HARD_IGNORE)
+    return;
+
+  /* If already trapped and ignored, no change necessary. */
+  if (sigmodes[sig] & SIG_IGNORED)
+    return;
+
+  /* Only change the signal handler for SIG if it allows it. */
+  if ((sigmodes[sig] & SIG_NO_TRAP) == 0)
+    set_signal_handler (sig, SIG_IGN);
+
+  /* Change the trap command in either case. */
+  change_signal (sig, (char *)IGNORE_SIG);
+}
+
+/* Handle the calling of "trap 0".  The only sticky situation is when
+   the command to be executed includes an "exit".  This is why we have
+   to provide our own place for top_level to jump to. */
+int
+run_exit_trap ()
+{
+  char *trap_command;
+  int code, function_code, retval;
+#if defined (ARRAY_VARS)
+  ARRAY *ps;
+#endif
+
+  trap_saved_exit_value = last_command_exit_value;
+#if defined (ARRAY_VARS)
+  ps = save_pipestatus_array ();
+#endif
+  function_code = 0;
+
+  /* Run the trap only if signal 0 is trapped and not ignored, and we are not
+     currently running in the trap handler (call to exit in the list of
+     commands given to trap 0). */
+  if ((sigmodes[EXIT_TRAP] & SIG_TRAPPED) &&
+      (sigmodes[EXIT_TRAP] & (SIG_IGNORED|SIG_INPROGRESS)) == 0)
+    {
+      trap_command = savestring (trap_list[EXIT_TRAP]);
+      sigmodes[EXIT_TRAP] &= ~SIG_TRAPPED;
+      sigmodes[EXIT_TRAP] |= SIG_INPROGRESS;
+
+      retval = trap_saved_exit_value;
+      running_trap = 1;
+
+      code = setjmp_nosigs (top_level);
+
+      /* If we're in a function, make sure return longjmps come here, too. */
+      if (return_catch_flag)
+       function_code = setjmp_nosigs (return_catch);
+
+      if (code == 0 && function_code == 0)
+       {
+         reset_parser ();
+         parse_and_execute (trap_command, "exit trap", SEVAL_NONINT|SEVAL_NOHIST|SEVAL_RESETLINE);
+       }
+      else if (code == ERREXIT)
+       retval = last_command_exit_value;
+      else if (code == EXITPROG)
+       retval = last_command_exit_value;
+      else if (function_code != 0)
+        retval = return_catch_value;
+      else
+       retval = trap_saved_exit_value;
+
+      running_trap = 0;
+      return retval;
+    }
+
+#if defined (ARRAY_VARS)
+  restore_pipestatus_array (ps);
+#endif
+  return (trap_saved_exit_value);
+}
+
+void
+run_trap_cleanup (sig)
+     int sig;
+{
+  sigmodes[sig] &= ~(SIG_INPROGRESS|SIG_CHANGED);
+}
+
+/* Run a trap command for SIG.  SIG is one of the signals the shell treats
+   specially.  Returns the exit status of the executed trap command list. */
+static int
+_run_trap_internal (sig, tag)
+     int sig;
+     char *tag;
+{
+  char *trap_command, *old_trap;
+  int trap_exit_value, *token_state;
+  volatile int save_return_catch_flag, function_code;
+  int flags;
+  procenv_t save_return_catch;
+  WORD_LIST *save_subst_varlist;
+#if defined (ARRAY_VARS)
+  ARRAY *ps;
+#endif
+
+  trap_exit_value = function_code = 0;
+  /* Run the trap only if SIG is trapped and not ignored, and we are not
+     currently executing in the trap handler. */
+  if ((sigmodes[sig] & SIG_TRAPPED) && ((sigmodes[sig] & SIG_IGNORED) == 0) &&
+      (trap_list[sig] != (char *)IMPOSSIBLE_TRAP_HANDLER) &&
+      ((sigmodes[sig] & SIG_INPROGRESS) == 0))
+    {
+      old_trap = trap_list[sig];
+      sigmodes[sig] |= SIG_INPROGRESS;
+      sigmodes[sig] &= ~SIG_CHANGED;           /* just to be sure */
+      trap_command =  savestring (old_trap);
+
+      running_trap = sig + 1;
+      trap_saved_exit_value = last_command_exit_value;
+#if defined (ARRAY_VARS)
+      ps = save_pipestatus_array ();
+#endif
+
+      token_state = save_token_state ();
+      save_subst_varlist = subst_assign_varlist;
+      subst_assign_varlist = 0;
+
+      /* If we're in a function, make sure return longjmps come here, too. */
+      save_return_catch_flag = return_catch_flag;
+      if (return_catch_flag)
+       {
+         COPY_PROCENV (return_catch, save_return_catch);
+         function_code = setjmp_nosigs (return_catch);
+       }
+
+      flags = SEVAL_NONINT|SEVAL_NOHIST;
+      if (sig != DEBUG_TRAP && sig != RETURN_TRAP && sig != ERROR_TRAP)
+       flags |= SEVAL_RESETLINE;
+      if (function_code == 0)
+       parse_and_execute (trap_command, tag, flags);
+
+      restore_token_state (token_state);
+      free (token_state);
+
+      subst_assign_varlist = save_subst_varlist;
+
+      trap_exit_value = last_command_exit_value;
+      last_command_exit_value = trap_saved_exit_value;
+#if defined (ARRAY_VARS)
+      restore_pipestatus_array (ps);
+#endif
+      running_trap = 0;
+
+      sigmodes[sig] &= ~SIG_INPROGRESS;
+
+      if (sigmodes[sig] & SIG_CHANGED)
+       {
+#if 0
+         /* Special traps like EXIT, DEBUG, RETURN are handled explicitly in
+            the places where they can be changed using unwind-protects.  For
+            example, look at execute_cmd.c:execute_function(). */
+         if (SPECIAL_TRAP (sig) == 0)
+#endif
+           free (old_trap);
+         sigmodes[sig] &= ~SIG_CHANGED;
+       }
+
+      if (save_return_catch_flag)
+       {
+         return_catch_flag = save_return_catch_flag;
+         return_catch_value = trap_exit_value;
+         COPY_PROCENV (save_return_catch, return_catch);
+         if (function_code)
+           longjmp (return_catch, 1);
+       }
+    }
+
+  return trap_exit_value;
+}
+
+int
+run_debug_trap ()
+{
+  int trap_exit_value;
+  pid_t save_pgrp;
+  int save_pipe[2];
+
+  /* XXX - question:  should the DEBUG trap inherit the RETURN trap? */
+  trap_exit_value = 0;
+  if ((sigmodes[DEBUG_TRAP] & SIG_TRAPPED) && ((sigmodes[DEBUG_TRAP] & SIG_IGNORED) == 0) && ((sigmodes[DEBUG_TRAP] & SIG_INPROGRESS) == 0))
+    {
+#if defined (JOB_CONTROL)
+      save_pgrp = pipeline_pgrp;
+      pipeline_pgrp = 0;
+      save_pipeline (1);
+#  if defined (PGRP_PIPE)
+      save_pgrp_pipe (save_pipe, 1);
+#  endif
+      stop_making_children ();
+#endif
+
+      trap_exit_value = _run_trap_internal (DEBUG_TRAP, "debug trap");
+
+#if defined (JOB_CONTROL)
+      pipeline_pgrp = save_pgrp;
+      restore_pipeline (1);
+#  if defined (PGRP_PIPE)
+      close_pgrp_pipe ();
+      restore_pgrp_pipe (save_pipe);
+#  endif
+      if (pipeline_pgrp > 0)
+       give_terminal_to (pipeline_pgrp, 1);
+      notify_and_cleanup ();
+#endif
+      
+#if defined (DEBUGGER)
+      /* If we're in the debugger and the DEBUG trap returns 2 while we're in
+        a function or sourced script, we force a `return'. */
+      if (debugging_mode && trap_exit_value == 2 && return_catch_flag)
+       {
+         return_catch_value = trap_exit_value;
+         longjmp (return_catch, 1);
+       }
+#endif
+    }
+  return trap_exit_value;
+}
+
+void
+run_error_trap ()
+{
+  if ((sigmodes[ERROR_TRAP] & SIG_TRAPPED) && ((sigmodes[ERROR_TRAP] & SIG_IGNORED) == 0) && (sigmodes[ERROR_TRAP] & SIG_INPROGRESS) == 0)
+    _run_trap_internal (ERROR_TRAP, "error trap");
+}
+
+void
+run_return_trap ()
+{
+  int old_exit_value;
+
+#if 0
+  if ((sigmodes[DEBUG_TRAP] & SIG_TRAPPED) && (sigmodes[DEBUG_TRAP] & SIG_INPROGRESS))
+    return;
+#endif
+
+  if ((sigmodes[RETURN_TRAP] & SIG_TRAPPED) && ((sigmodes[RETURN_TRAP] & SIG_IGNORED) == 0) && (sigmodes[RETURN_TRAP] & SIG_INPROGRESS) == 0)
+    {
+      old_exit_value = last_command_exit_value;
+      _run_trap_internal (RETURN_TRAP, "return trap");
+      last_command_exit_value = old_exit_value;
+    }
+}
+
+/* Run a trap set on SIGINT.  This is called from throw_to_top_level (), and
+   declared here to localize the trap functions. */
+void
+run_interrupt_trap ()
+{
+  _run_trap_internal (SIGINT, "interrupt trap");
+}
+
+/* Free all the allocated strings in the list of traps and reset the trap
+   values to the default.  Intended to be called from subshells that want
+   to complete work done by reset_signal_handlers upon execution of a
+   subsequent `trap' command that changes a signal's disposition.  We need
+   to make sure that we duplicate the behavior of
+   reset_or_restore_signal_handlers and not change the disposition of signals
+   that are set to be ignored. */
+void
+free_trap_strings ()
+{
+  register int i;
+
+  for (i = 0; i < BASH_NSIG; i++)
+    {
+      if (trap_list[i] != (char *)IGNORE_SIG)
+       free_trap_string (i);
+    }
+  trap_list[DEBUG_TRAP] = trap_list[EXIT_TRAP] = trap_list[ERROR_TRAP] = trap_list[RETURN_TRAP] = (char *)NULL;
+}
+
+/* Free a trap command string associated with SIG without changing signal
+   disposition.  Intended to be called from free_trap_strings()  */
+static void
+free_trap_string (sig)
+     int sig;
+{
+  change_signal (sig, (char *)DEFAULT_SIG);
+  sigmodes[sig] &= ~SIG_TRAPPED;
+}
+
+/* Reset the handler for SIG to the original value but leave the trap string
+   in place. */
+static void
+reset_signal (sig)
+     int sig;
+{
+  set_signal_handler (sig, original_signals[sig]);
+  sigmodes[sig] &= ~SIG_TRAPPED;
+}
+
+/* Set the handler signal SIG to the original and free any trap
+   command associated with it. */
+static void
+restore_signal (sig)
+     int sig;
+{
+  set_signal_handler (sig, original_signals[sig]);
+  change_signal (sig, (char *)DEFAULT_SIG);
+  sigmodes[sig] &= ~SIG_TRAPPED;
+}
+
+static void
+reset_or_restore_signal_handlers (reset)
+     sh_resetsig_func_t *reset;
+{
+  register int i;
+
+  /* Take care of the exit trap first */
+  if (sigmodes[EXIT_TRAP] & SIG_TRAPPED)
+    {
+      sigmodes[EXIT_TRAP] &= ~SIG_TRAPPED;
+      if (reset != reset_signal)
+       {
+         free_trap_command (EXIT_TRAP);
+         trap_list[EXIT_TRAP] = (char *)NULL;
+       }
+    }
+
+  for (i = 1; i < NSIG; i++)
+    {
+      if (sigmodes[i] & SIG_TRAPPED)
+       {
+         if (trap_list[i] == (char *)IGNORE_SIG)
+           set_signal_handler (i, SIG_IGN);
+         else
+           (*reset) (i);
+       }
+      else if (sigmodes[i] & SIG_SPECIAL)
+       (*reset) (i);
+    }
+
+  /* Command substitution and other child processes don't inherit the
+     debug, error, or return traps.  If we're in the debugger, and the
+     `functrace' or `errtrace' options have been set, then let command
+     substitutions inherit them.  Let command substitution inherit the
+     RETURN trap if we're in the debugger and tracing functions. */
+  if (function_trace_mode == 0)
+    {
+      sigmodes[DEBUG_TRAP] &= ~SIG_TRAPPED;
+      sigmodes[RETURN_TRAP] &= ~SIG_TRAPPED;
+    }
+  if (error_trace_mode == 0)
+    sigmodes[ERROR_TRAP] &= ~SIG_TRAPPED;
+}
+
+/* Reset trapped signals to their original values, but don't free the
+   trap strings.  Called by the command substitution code and other places
+   that create a "subshell environment". */
+void
+reset_signal_handlers ()
+{
+  reset_or_restore_signal_handlers (reset_signal);
+}
+
+/* Reset all trapped signals to their original values.  Signals set to be
+   ignored with trap '' SIGNAL should be ignored, so we make sure that they
+   are.  Called by child processes after they are forked. */
+void
+restore_original_signals ()
+{
+  reset_or_restore_signal_handlers (restore_signal);
+}
+
+/* If a trap handler exists for signal SIG, then call it; otherwise just
+   return failure.  Returns 1 if it called the trap handler. */
+int
+maybe_call_trap_handler (sig)
+     int sig;
+{
+  /* Call the trap handler for SIG if the signal is trapped and not ignored. */
+  if ((sigmodes[sig] & SIG_TRAPPED) && ((sigmodes[sig] & SIG_IGNORED) == 0))
+    {
+      switch (sig)
+       {
+       case SIGINT:
+         run_interrupt_trap ();
+         break;
+       case EXIT_TRAP:
+         run_exit_trap ();
+         break;
+       case DEBUG_TRAP:
+         run_debug_trap ();
+         break;
+       case ERROR_TRAP:
+         run_error_trap ();
+         break;
+       default:
+         trap_handler (sig);
+         break;
+       }
+      return (1);
+    }
+  else
+    return (0);
+}
+
+int
+signal_is_trapped (sig)
+     int sig;
+{
+  return (sigmodes[sig] & SIG_TRAPPED);
+}
+
+int
+signal_is_pending (sig)
+     int sig;
+{
+  return (pending_traps[sig]);
+}
+
+int
+signal_is_special (sig)
+     int sig;
+{
+  return (sigmodes[sig] & SIG_SPECIAL);
+}
+
+int
+signal_is_ignored (sig)
+     int sig;
+{
+  return (sigmodes[sig] & SIG_IGNORED);
+}
+
+int
+signal_is_hard_ignored (sig)
+     int sig;
+{
+  return (sigmodes[sig] & SIG_HARD_IGNORE);
+}
+
+void
+set_signal_ignored (sig)
+     int sig;
+{
+  sigmodes[sig] |= SIG_HARD_IGNORE;
+  original_signals[sig] = SIG_IGN;
+}
+
+int
+signal_in_progress (sig)
+     int sig;
+{
+  return (sigmodes[sig] & SIG_INPROGRESS);
+}