configure.in

   1 dnl
   2 dnl Configure script for bash-2.03
   3 dnl
   4 dnl report bugs to chet@po.cwru.edu
   5 dnl
   6 dnl Process this file with autoconf to produce a configure script.
   7 dnl checks for version info
   8
   9 AC_REVISION([for Bash 2.03, version 2.49, from autoconf version] AC_ACVERSION)dnl
  10
  11 AC_INIT(shell.h)
  12 AC_CONFIG_HEADER(config.h)
  13
  14 dnl make sure we are using a recent autoconf version
  15 AC_PREREQ(2.10)
  16
  17 dnl where to find install.sh, config.sub, and config.guess
  18 AC_CONFIG_AUX_DIR(./support)
  19
  20 dnl canonicalize the host and os so we can do some tricky things before
  21 dnl parsing options
  22 AC_CANONICAL_HOST
  23
  24 dnl configure defaults
  25 opt_gnu_malloc=yes
  26 opt_glibc_malloc=no
  27 opt_purify=no
  28 opt_purecov=no
  29 opt_afs=no
  30 opt_curses=no
  31 opt_with_installed_readline=no
  32
  33 dnl some systems should be configured without gnu malloc by default
  34 dnl and some need a special compiler or loader
  35 dnl look in the NOTES file for more
  36 case "${host_cpu}-${host_os}" in
  37 alpha*-*)       opt_gnu_malloc=no ;;    # alpha running osf/1 or linux
  38 *[Cc]ray*-*)    opt_gnu_malloc=no ;;    # Crays
  39 *-osf1*)        opt_gnu_malloc=no ;;    # other osf/1 machines
  40 sparc-svr4*)    opt_gnu_malloc=no ;;    # sparc SVR4, SVR4.2
  41 sparc-netbsd*)  opt_gnu_malloc=no ;;    # needs 8-byte alignment
  42 mips-irix6*)    opt_gnu_malloc=no ;;    # needs 8-byte alignment
  43 sparc-linux*)   opt_gnu_malloc=no ;;    # sparc running linux; requires ELF
  44 #*-freebsd*)    opt_gnu_malloc=no ;;    # they claim it's better
  45 *-aix*)         opt_gnu_malloc=no ;;    # AIX machines
  46 *-nextstep*)    opt_gnu_malloc=no ;;    # NeXT machines running NeXTstep
  47 *-rhapsody*)    opt_gnu_malloc=no ;;    # Apple Rhapsody
  48 *-dgux*)        opt_gnu_malloc=no ;;    # DG/UX machines
  49 *-qnx*)         opt_gnu_malloc=no ;;    # QNX 4.2
  50 *-machten4)     opt_gnu_malloc=no ;;    # MachTen 4.x
  51 *-bsdi2.1|*-bsdi3.?)    opt_gnu_malloc=no ; : ${CC:=shlicc2} ;; # for loadable builtins
  52 *-beos*)        opt_gnu_malloc=no ;;    # they say it's suitable
  53 *-cygwin32*)    opt_gnu_malloc=no ;;    # Cygnus's CYGWIN32 environment
  54 esac
  55
  56 dnl arguments to configure
  57 dnl packages
  58 AC_ARG_WITH(afs, --with-afs             if you are running AFS, opt_afs=$withval)
  59 AC_ARG_WITH(curses, --with-curses               use the curses library instead of the termcap library,opt_curses=$withval)
  60 AC_ARG_WITH(glibc-malloc, --with-glibc-malloc   use the GNU C library version of malloc,opt_glibc_malloc=$withval)
  61 AC_ARG_WITH(gnu-malloc, --with-gnu-malloc       use the GNU version of malloc,opt_gnu_malloc=$withval)
  62 AC_ARG_WITH(installed-readline, --with-installed-readline       use a version of the readline library that is already installed, opt_with_installed_readline=$withval)
  63 AC_ARG_WITH(purecov, --with-purecov             configure to postprocess with pure coverage, opt_purecov=$withval)
  64 AC_ARG_WITH(purify, --with-purify               configure to postprocess with purify, opt_purify=$withval)
  65
  66 dnl test for glibc malloc first because it can override the default
  67 if test "$opt_glibc_malloc" = yes; then
  68         MALLOC_TARGET=gmalloc
  69         MALLOC_SRC=gmalloc.c
  70 elif test "$opt_gnu_malloc" = yes; then
  71         MALLOC_TARGET=malloc
  72         MALLOC_SRC=malloc.c
  73 else
  74         MALLOC_TARGET=stubmalloc
  75         MALLOC_SRC=stub.c
  76 fi
  77
  78 if test "$opt_purify" = yes; then
  79         PURIFY="purify "
  80 else
  81         PURIFY=
  82 fi
  83
  84 if test "$opt_purecov" = yes; then
  85         PURIFY="${PURIFY}purecov"
  86 fi
  87
  88 if test "$opt_afs" = yes; then
  89         AC_DEFINE(AFS)
  90 fi
  91
  92 if test "$opt_curses" = yes; then
  93         prefer_curses=yes
  94 fi
  95
  96 dnl optional shell features in config.h.in
  97 opt_minimal_config=no
  98
  99 opt_job_control=yes
 100 opt_alias=yes
 101 opt_readline=yes
 102 opt_history=yes
 103 opt_bang_history=yes
 104 opt_dirstack=yes
 105 opt_restricted=yes
 106 opt_process_subst=yes
 107 opt_prompt_decoding=yes
 108 opt_select=yes
 109 opt_help=yes
 110 opt_array_variables=yes
 111 opt_dparen_arith=yes
 112 opt_extended_glob=yes
 113 opt_brace_expansion=yes
 114 opt_disabled_builtins=no
 115 opt_command_timing=yes
 116 opt_usg_echo=no
 117 opt_cond_command=yes
 118
 119 dnl options that affect how bash is compiled and linked
 120 opt_static_link=no
 121 opt_profiling=no
 122
 123 dnl argument parsing for optional features
 124 AC_ARG_ENABLE(minimal-config, --enable-minimal-config   a minimal sh-like configuration, opt_minimal_config=$enableval)
 125
 126 dnl a minimal configuration turns everything off, but features can be
 127 dnl added individually
 128 if test $opt_minimal_config = yes; then
 129         opt_job_control=no opt_alias=no opt_readline=no
 130         opt_history=no opt_bang_history=no opt_dirstack=no
 131         opt_restricted=no opt_process_subst=no opt_prompt_decoding=no
 132         opt_select=no opt_help=no opt_array_variables=no opt_dparen_arith=no
 133         opt_brace_expansion=no opt_disabled_builtins=no opt_command_timing=no
 134         opt_extended_glob=no opt_cond_command=no
 135 fi
 136
 137 AC_ARG_ENABLE(alias, --enable-alias             enable shell aliases, opt_alias=$enableval)
 138 AC_ARG_ENABLE(array-variables, --enable-array-variables include shell array variables, opt_array_variables=$enableval)
 139 AC_ARG_ENABLE(bang-history, --enable-bang-history       turn on csh-style history substitution, opt_bang_history=$enableval)
 140 AC_ARG_ENABLE(brace-expansion, --enable-brace-expansion include brace expansion, opt_brace_expansion=$enableval)
 141 AC_ARG_ENABLE(command-timing, --enable-command-timing   enable the time reserved word and command timing, opt_command_timing=$enableval)
 142 AC_ARG_ENABLE(cond-command, --enable-cond-command       enable the conditional command, opt_cond_command=$enableval)
 143 AC_ARG_ENABLE(directory-stack, --enable-directory-stack enable builtins pushd/popd/dirs, opt_dirstack=$enableval)
 144 AC_ARG_ENABLE(disabled-builtins, --enable-disabled-builtins     allow disabled builtins to still be invoked, opt_disabled_builtins=$enableval)
 145 AC_ARG_ENABLE(dparen-arithmetic, [--enable-dparen-arithmetic    include ((...)) command], opt_dparen_arith=$enableval)
 146 AC_ARG_ENABLE(extended-glob, --enable-extended-glob     include ksh-style extended pattern matching, opt_extended_glob=$enableval)
 147 AC_ARG_ENABLE(help-builtin, --enable-help-builtin       include the help builtin, opt_help=$enableval)
 148 AC_ARG_ENABLE(history, --enable-history turn on command history, opt_history=$enableval)
 149 AC_ARG_ENABLE(job-control, --enable-job-control enable job control features, opt_job_control=$enableval)
 150 AC_ARG_ENABLE(process-substitution, --enable-process-substitution       enable process substitution, opt_process_subst=$enableval)
 151 AC_ARG_ENABLE(prompt-string-decoding, --enable-prompt-string-decoding   turn on escape character decoding in prompts, opt_prompt_decoding=$enableval)
 152 AC_ARG_ENABLE(readline, --enable-readline       turn on command line editing, opt_readline=$enableval)
 153 AC_ARG_ENABLE(restricted, --enable-restricted   enable a restricted shell, opt_restricted=$enableval)
 154 AC_ARG_ENABLE(select, --enable-select           include select command, opt_select=$enableval)
 155 AC_ARG_ENABLE(usg-echo-default, --enable-usg-echo-default       make the echo builtin expand escape sequences by default, opt_usg_echo=$enableval)
 156
 157 dnl options that alter how bash is compiled and linked
 158 AC_ARG_ENABLE(profiling, --enable-profiling             allow profiling with gprof, opt_profiling=$enableval)
 159 AC_ARG_ENABLE(static-link, --enable-static-link         [link bash statically, for use as a root shell], opt_static_link=$enableval)
 160
 161 dnl opt_job_control is handled later, after BASH_JOB_CONTROL_MISSING runs
 162
 163 dnl opt_readline and opt_history are handled later, because AC_PROG_CC needs
 164 dnl to be run before we can check the version of an already-installed readline
 165 dnl library
 166
 167 if test $opt_alias = yes; then
 168 AC_DEFINE(ALIAS)
 169 fi
 170 if test $opt_dirstack = yes; then
 171 AC_DEFINE(PUSHD_AND_POPD)
 172 fi
 173 if test $opt_restricted = yes; then
 174 AC_DEFINE(RESTRICTED_SHELL)
 175 fi
 176 if test $opt_process_subst = yes; then
 177 AC_DEFINE(PROCESS_SUBSTITUTION)
 178 fi
 179 if test $opt_prompt_decoding = yes; then
 180 AC_DEFINE(PROMPT_STRING_DECODE)
 181 fi
 182 if test $opt_select = yes; then
 183 AC_DEFINE(SELECT_COMMAND)
 184 fi
 185 if test $opt_help = yes; then
 186 AC_DEFINE(HELP_BUILTIN)
 187 fi
 188 if test $opt_array_variables = yes; then
 189 AC_DEFINE(ARRAY_VARS)
 190 fi
 191 if test $opt_dparen_arith = yes; then
 192 AC_DEFINE(DPAREN_ARITHMETIC)
 193 fi
 194 if test $opt_brace_expansion = yes; then
 195 AC_DEFINE(BRACE_EXPANSION)
 196 fi
 197 if test $opt_disabled_builtins = yes; then
 198 AC_DEFINE(DISABLED_BUILTINS)
 199 fi
 200 if test $opt_command_timing = yes; then
 201 AC_DEFINE(COMMAND_TIMING)
 202 fi
 203 if test $opt_usg_echo = yes ; then
 204 AC_DEFINE(DEFAULT_ECHO_TO_USG)
 205 fi
 206 if test $opt_extended_glob = yes ; then
 207 AC_DEFINE(EXTENDED_GLOB)
 208 fi
 209 if test $opt_cond_command = yes ; then
 210 AC_DEFINE(COND_COMMAND)
 211 fi
 212
 213 if test "$opt_minimal_config" = yes; then
 214         TESTSCRIPT=run-minimal
 215 else
 216         TESTSCRIPT=run-all
 217 fi
 218
 219 dnl now substitute in the values generated by arguments
 220 AC_SUBST(TESTSCRIPT)
 221 AC_SUBST(PURIFY)
 222 AC_SUBST(MALLOC_TARGET)
 223 AC_SUBST(MALLOC_SRC)
 224
 225 dnl Use GNU m4 macros to get the distribution and patchlevel information
 226 dnl into configure without requiring the files to be distributed
 227 [BASHVERS=]dnl
 228 esyscmd(cat _distribution)dnl
 229 [BASHPATCH=]dnl
 230 esyscmd(cat _patchlevel)dnl
 231
 232 echo "Beginning configuration for bash-$BASHVERS for ${host_cpu}-${host_vendor}-${host_os}"
 233
 234 dnl compilation checks
 235 dnl AC_PROG_CC sets $cross_compiling to `yes' if cross-compiling for a
 236 dnl different environment
 237 AC_PROG_CC
 238 BASH_LARGE_FILE_SUPPORT
 239 AC_ISC_POSIX
 240 AC_MINIX
 241
 242 dnl BEGIN changes for cross-building for cygwin32 and BeOS
 243
 244 SIGNAMES_H=lsignames.h
 245
 246 dnl load up the cross-building cache file -- add more cases and cache
 247 dnl files as necessary
 248
 249 dnl Note that host and target machine are the same, and different than the
 250 dnl build machine.
 251 dnl Set SIGNAMES_H based on whether or not we're cross-compiling.
 252
 253 if test "x$cross_compiling" = "xyes"; then
 254     case "${host}" in
 255     *-cygwin32*)
 256         cross_cache=${srcdir}/cross-build/cygwin32.cache
 257         SIGNAMES_H='$(srcdir)/cross-build/win32sig.h'
 258         ;;
 259     i[[3456]]86-*-beos*)
 260         cross_cache=${srcdir}/cross-build/x86-beos.cache
 261         SIGNAMES_H='${srcdir}/cross-build/beos-sig.h'
 262         ;;
 263     *)  echo "configure: cross-compiling for $host is not supported" >&2
 264         ;;
 265     esac
 266     if test -n "${cross_cache}" && test -r "${cross_cache}"; then
 267         echo "loading cross-build cache file ${cross_cache}"
 268         . ${cross_cache}
 269     fi
 270     unset cross_cache
 271 fi
 272 AC_SUBST(SIGNAMES_H)
 273
 274 if test -z "$CC_FOR_BUILD"; then
 275     if test "x$cross_compiling" = "xno"; then
 276         CC_FOR_BUILD='$(CC)'
 277     else
 278         CC_FOR_BUILD=gcc
 279     fi
 280 fi
 281 AC_SUBST(CC_FOR_BUILD)
 282
 283 dnl END changes for cross-building
 284
 285 dnl We want these before the checks, so the checks can modify their values.
 286 test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
 287
 288 dnl If we're using gcc and the user hasn't specified CFLAGS, add -O2 to CFLAGS.
 289 test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O2"
 290
 291 dnl handle options that alter how bash is compiled and linked
 292 dnl these must come after the test for cc/gcc
 293 if test "$opt_profiling" = "yes"; then
 294         PROFILE_FLAGS=-pg
 295         case "$host_os" in
 296         solaris2*)      ;;
 297         *)              opt_static_link=yes ;;
 298         esac
 299 fi
 300
 301 if test "$opt_static_link" = yes; then
 302         # if we're using gcc, add `-static' to LDFLAGS
 303         if test -n "$GCC" || test "$ac_cv_prog_gcc" = "yes"; then
 304                 STATIC_LD="-static"
 305         fi
 306 fi
 307
 308 AC_SUBST(CFLAGS)
 309 AC_SUBST(CPPFLAGS)
 310 AC_SUBST(LDFLAGS)
 311 AC_SUBST(STATIC_LD)
 312
 313 AC_PROG_GCC_TRADITIONAL
 314
 315 dnl BEGIN READLINE and HISTORY LIBRARY SECTION
 316 dnl prepare to allow bash to be linked against an already-installed readline
 317
 318 dnl first test that the readline version is new enough to link bash against
 319 if test "$opt_readline" = yes && test "$opt_with_installed_readline" = "yes"
 320 then
 321
 322 dnl     we duplicate some work that's done later here so we can look in
 323 dnl     the correct directory for the readline library
 324
 325         test "x$prefix" = xNONE && _rl_prefix=$ac_default_prefix || _rl_prefix=${prefix}
 326         test "x$exec_prefix" = xNONE && _rl_exec_prefix=${_rl_prefix} || _rl_exec_prefix=${exec_prefix}
 327
 328         AC_MSG_CHECKING(version of installed readline library)
 329         _rl_version=`exec_prefix=${_rl_exec_prefix} ${CONFIG_SHELL-/bin/sh} ${srcdir}/support/rlvers.sh -C "${CC}" -L ${libdir}`
 330         AC_MSG_RESULT($_rl_version)
 331
 332         case "$_rl_version" in
 333         3*|4*|5*|6*|7*|8*|9*)   ;;
 334         *)      opt_with_installed_readline=no
 335                 AC_MSG_WARN(installed readline library is too old to be linked with bash)
 336                 AC_MSG_WARN(using private bash version)
 337                 ;;
 338         esac
 339         unset _rl_version _rl_prefix _rl_exec_prefix
 340 fi
 341
 342 if test $opt_readline = yes; then
 343         AC_DEFINE(READLINE)
 344         READLINE_LIB=-lreadline
 345         if test "$opt_with_installed_readline" = "yes" ; then
 346                 RL_LIBDIR='$(libdir)'
 347                 READLINE_DEP=
 348                 RL_INCLUDE='-I$(includedir)'
 349         else
 350                 RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
 351                 READLINE_DEP='$(READLINE_LIBRARY)'
 352         fi
 353 else
 354         RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
 355         READLINE_LIB= READLINE_DEP=
 356 fi
 357 if test $opt_history = yes || test $opt_bang_history = yes; then
 358         if test $opt_history = yes; then
 359                 AC_DEFINE(HISTORY)
 360         fi
 361         if test $opt_bang_history = yes; then
 362                 AC_DEFINE(BANG_HISTORY)
 363         fi
 364         HISTORY_LIB=-lhistory
 365         if test "$opt_with_installed_readline" = "yes"; then
 366                 HIST_LIBDIR='$(libdir)'
 367                 HISTORY_DEP=
 368                 RL_INCLUDE='-I$(includedir)'
 369         else
 370                 HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
 371                 HISTORY_DEP='$(HISTORY_LIBRARY)'
 372         fi
 373 else
 374         HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
 375         HISTORY_LIB= HISTORY_DEP=
 376 fi
 377 AC_SUBST(READLINE_LIB)
 378 AC_SUBST(READLINE_DEP)
 379 AC_SUBST(RL_LIBDIR)
 380 AC_SUBST(RL_INCLUDE)
 381 AC_SUBST(HISTORY_LIB)
 382 AC_SUBST(HISTORY_DEP)
 383 AC_SUBST(HIST_LIBDIR)
 384
 385 dnl END READLINE and HISTORY LIBRARY SECTION
 386
 387 dnl programs needed by the build and install process
 388 AC_PROG_INSTALL
 389 AC_CHECK_PROG(AR, ar, ar)
 390 dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
 391 dnl This allows people to set it when running configure or make
 392 test -n "$ARFLAGS" || ARFLAGS="cr"
 393 AC_PROG_RANLIB
 394 AC_PROG_YACC
 395 AC_PROG_MAKE_SET
 396
 397 case "$host_os" in
 398 opennt*|interix*)       MAKE_SHELL="$OPENNT_ROOT/bin/sh" ;;
 399 *)                      MAKE_SHELL=/bin/sh ;;
 400 esac
 401 AC_SUBST(MAKE_SHELL)
 402
 403 dnl special checks for libc functions
 404 AC_FUNC_ALLOCA
 405 AC_FUNC_GETPGRP
 406 AC_FUNC_SETVBUF_REVERSED
 407 AC_FUNC_VPRINTF
 408 AC_FUNC_WAIT3
 409 AC_FUNC_STRCOLL
 410
 411 dnl if vprintf is not in libc, see if it's defined in stdio.h
 412 if test "$ac_cv_func_vprintf" = no; then
 413     AC_MSG_CHECKING(for declaration of vprintf in stdio.h)
 414     AC_EGREP_HEADER([[int[      ]*vprintf[^a-zA-Z0-9]]],stdio.h,ac_cv_func_vprintf=yes)
 415     AC_MSG_RESULT($ac_cv_func_vprintf)
 416     if test $ac_cv_func_vprintf = yes; then
 417         AC_DEFINE(HAVE_VPRINTF)
 418     fi
 419 fi
 420
 421 dnl signal stuff
 422 AC_RETSIGTYPE
 423
 424 dnl checks for certain version-specific system calls and libc functions
 425 AC_CHECK_FUNC(__setostype, AC_DEFINE(HAVE_SETOSTYPE))
 426 AC_CHECK_FUNC(wait3, AC_DEFINE(HAVE_WAIT3))
 427
 428 dnl checks for missing libc functions
 429 AC_CHECK_FUNC(mkfifo,AC_DEFINE(HAVE_MKFIFO),AC_DEFINE(MKFIFO_MISSING))
 430
 431 dnl checks for system calls
 432 AC_CHECK_FUNCS(dup2 select getdtablesize getgroups gethostname \
 433                 setdtablesize getpagesize killpg lstat getpeername sbrk \
 434                 getrlimit getrusage gettimeofday waitpid tcgetpgrp rename)
 435
 436 dnl checks for c library functions
 437 AC_CHECK_FUNCS(bcopy bzero confstr getcwd strcasecmp setenv putenv \
 438                 setlinebuf setlocale strchr strerror strtod strtol \
 439                 strtoul tcgetattr uname sysconf ulimit times tzset \
 440                 siginterrupt memmove)
 441
 442 dnl checks for locale functions
 443 AC_CHECK_HEADERS(libintl.h)
 444 AC_CHECK_FUNCS(gettext textdomain bindtextdomain)
 445
 446 dnl check for GNU libintl if gettext/textdomain/bindtextdomain
 447 dnl are not found in libc
 448 if test "$ac_cv_func_bindtextdomain" = "no"; then
 449     AC_CHECK_LIB(intl,bindtextdomain)
 450     if test "$ac_cv_lib_intl" = "yes"; then
 451         AC_CHECK_FUNCS(gettext textdomain bindtextdomain)
 452     fi
 453 fi
 454
 455 dnl checks for the dynamic loading library functions in libc and libdl
 456 if test "$opt_static_link" != yes; then
 457 AC_CHECK_LIB(dl, dlopen)
 458 AC_CHECK_FUNCS(dlopen dlclose dlsym)
 459 fi
 460
 461 dnl this defines SYS_SIGLIST_DECLARED
 462 AC_DECL_SYS_SIGLIST
 463
 464 dnl header files
 465 AC_HEADER_DIRENT
 466 AC_HEADER_TIME
 467
 468 AC_CHECK_HEADERS(unistd.h stdlib.h stdarg.h varargs.h limits.h string.h \
 469                  memory.h locale.h termcap.h termio.h termios.h dlfcn.h \
 470                  stddef.h)
 471 AC_CHECK_HEADERS(sys/ptem.h sys/pte.h sys/stream.h sys/select.h sys/file.h \
 472                  sys/resource.h sys/param.h sys/socket.h \
 473                  sys/time.h sys/times.h sys/wait.h)
 474
 475 dnl libraries
 476 dnl this is reportedly no longer necessary for irix[56].?
 477 dnl AC_CHECK_LIB(sun, getpwent)
 478 dnl check for getpeername in the socket library only if it's not in libc
 479 if test "$ac_cv_func_getpeername" = no; then
 480         BASH_CHECK_SOCKLIB
 481 fi
 482
 483 dnl system types
 484 AC_TYPE_GETGROUPS
 485 AC_TYPE_OFF_T
 486 AC_TYPE_MODE_T
 487 AC_TYPE_UID_T
 488 AC_TYPE_PID_T
 489 AC_TYPE_SIZE_T
 490 AC_CHECK_TYPE(time_t, long)
 491
 492 AC_TYPE_SIGNAL
 493
 494 AC_CHECK_SIZEOF(int, 4)
 495 AC_CHECK_SIZEOF(long, 4)
 496 AC_CHECK_SIZEOF(char *, 4)
 497 AC_CHECK_SIZEOF(double, 8)
 498
 499 BASH_TYPE_INT32_T
 500 BASH_TYPE_U_INT32_T
 501 BASH_TYPE_PTRDIFF_T
 502 BASH_TYPE_BITS64_T
 503
 504 dnl structures
 505 AC_HEADER_STAT
 506 AC_HEADER_EGREP(struct timeval, sys/time.h, bash_cv_struct_timeval=yes, )
 507 if test -z "$bash_cv_struct_timeval"; then
 508 AC_HEADER_EGREP(struct timeval, time.h, bash_cv_struct_timeval=yes, bash_cv_struct_timeval=no)
 509 fi
 510 if test $bash_cv_struct_timeval = yes; then
 511 AC_DEFINE(HAVE_TIMEVAL)
 512 fi
 513
 514 dnl C compiler characteristics
 515 AC_C_BIGENDIAN
 516
 517 dnl system services
 518 AC_SYS_INTERPRETER
 519 if test $ac_cv_sys_interpreter = yes; then
 520 AC_DEFINE(HAVE_HASH_BANG_EXEC)
 521 fi
 522 dnl we use NO_READ_RESTART_ON_SIGNAL
 523 AC_SYS_RESTARTABLE_SYSCALLS
 524
 525 dnl Miscellaneous Bash tests
 526 if test "$ac_cv_func_lstat" = "no"; then
 527 BASH_FUNC_LSTAT
 528 fi
 529
 530 dnl behavior of system calls and library functions
 531 BASH_DUP2_CLOEXEC_CHECK
 532 BASH_PGRP_SYNC
 533 BASH_SIGNAL_CHECK
 534
 535 if test "$ac_cv_sys_restartable_syscalls" = "no"; then
 536 BASH_SYS_RESTARTABLE_SYSCALLS
 537 fi
 538
 539 dnl checking for the presence of certain library symbols
 540 BASH_SYS_ERRLIST
 541 BASH_SYS_SIGLIST
 542 BASH_UNDER_SYS_SIGLIST
 543
 544 dnl various system types
 545 BASH_TYPE_SIGHANDLER
 546 BASH_CHECK_TYPE(clock_t, [#include <sys/times.h>], long)
 547 BASH_CHECK_TYPE(sigset_t, [#include <signal.h>], int)
 548 BASH_CHECK_TYPE(quad_t, , long, HAVE_QUAD_T)
 549 BASH_RLIMIT_TYPE
 550
 551 dnl presence and contents of structures used by system calls
 552 BASH_STRUCT_TERMIOS_LDISC
 553 BASH_STRUCT_TERMIO_LDISC
 554 BASH_STRUCT_DIRENT_D_INO
 555 BASH_STRUCT_DIRENT_D_FILENO
 556 BASH_STRUCT_WINSIZE
 557
 558 dnl presence and behavior of C library functions
 559 BASH_FUNC_STRSIGNAL
 560 BASH_FUNC_OPENDIR_CHECK
 561 BASH_FUNC_PRINTF
 562 BASH_FUNC_ULIMIT_MAXFDS
 563 BASH_FUNC_GETENV
 564 BASH_FUNC_GETCWD
 565 BASH_FUNC_SBRK_DECLARED
 566 BASH_FUNC_POSIX_SETJMP
 567 BASH_FUNC_STRCOLL
 568
 569 dnl presence and behavior of OS functions
 570 BASH_REINSTALL_SIGHANDLERS
 571 BASH_JOB_CONTROL_MISSING
 572 BASH_SYS_NAMED_PIPES
 573
 574 dnl presence of certain CPP defines
 575 BASH_HAVE_TIOCGWINSZ
 576 BASH_HAVE_TIOCSTAT
 577 BASH_HAVE_FIONREAD
 578
 579 dnl miscellaneous
 580 BASH_MISC_SPEED_T
 581 BASH_CHECK_GETPW_FUNCS
 582
 583 dnl special checks
 584 case "$host_os" in
 585 hpux*)  BASH_KERNEL_RLIMIT_CHECK ;;
 586 esac
 587
 588 if test "$opt_readline" = yes; then
 589 dnl yuck
 590 case "$host_os" in
 591 aix*)   prefer_curses=yes ;;
 592 esac
 593 BASH_CHECK_LIB_TERMCAP
 594 fi
 595 AC_SUBST(TERMCAP_LIB)
 596 AC_SUBST(TERMCAP_DEP)
 597
 598 BASH_CHECK_DEV_FD
 599 BASH_DEFAULT_MAIL_DIR
 600
 601 if test "$bash_cv_job_control_missing" = missing; then
 602         opt_job_control=no
 603 fi
 604
 605 if test "$opt_job_control" = yes; then
 606 AC_DEFINE(JOB_CONTROL)
 607 JOBS_O=jobs.o
 608 else
 609 JOBS_O=nojobs.o
 610 fi
 611
 612 AC_SUBST(JOBS_O)
 613
 614 dnl Defines that we want to propagate to the Makefiles in subdirectories,
 615 dnl like glob and readline
 616
 617 LOCAL_DEFS=-DSHELL
 618
 619 dnl use this section to possibly define more cpp variables, specify local
 620 dnl libraries, and specify any additional local cc flags
 621 dnl
 622 dnl this should really go away someday
 623
 624 case "${host_os}" in
 625 sysv4.2*)       AC_DEFINE(SVR4_2)
 626                 AC_DEFINE(SVR4) ;;
 627 sysv4*)         AC_DEFINE(SVR4) ;;
 628 sysv5*)         AC_DEFINE(SVR5) ;;
 629 hpux9*)         LOCAL_CFLAGS="-DHPUX9 -DHPUX" ;;
 630 hpux*)          LOCAL_CFLAGS=-DHPUX ;;
 631 dgux*)          LOCAL_CFLAGS=-D_DGUX_SOURCE; LOCAL_LIBS=-ldgc ;;
 632 isc*)           LOCAL_CFLAGS=-Disc386;;
 633 sco3.2v5*)      LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DNO_MEMSCRAMBLE -DPATH_MAX=1024" ;;
 634 sco3.2v4*)      LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DNO_MEMSCRAMBLE -DPATH_MAX=1024" ;;
 635 sco3.2*)        LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
 636 sunos4*)        LOCAL_CFLAGS=-DSunOS4 ;;
 637 solaris2.5*)    LOCAL_CFLAGS=-DSunOS5 ;;
 638 lynxos*)        LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 639 linux*)         LOCAL_LDFLAGS=-rdynamic ;;       # allow dynamic loading
 640 *qnx*)          LOCAL_CFLAGS="-Dqnx -F -3s" LOCAL_LDFLAGS="-3s -lunix -lncurses" ;;
 641 powerux*)       LOCAL_LIBS="-lgen" ;;
 642 cygwin32*)      LOCAL_LIBS="-luser32" ;;
 643 opennt*|interix*) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG" ;;
 644 esac
 645
 646 dnl Stanza for OS/compiler pair-specific flags
 647 case "${host_os}-${CC}" in
 648 aix4.2*-*gcc*)  LOCAL_LDFLAGS="-Xlinker -bexpall -Xlinker -brtl" ;;
 649 aix4.2*)        LOCAL_LDFLAGS="-bexpall -brtl" ;;
 650 bsdi4*-*gcc*)   LOCAL_LDFLAGS="-rdynamic" ;;    # allow dynamic loading, like Linux
 651 esac
 652
 653 case "$host_cpu" in
 654 *cray*)         LOCAL_CFLAGS="-DCRAY" ;; # shell var so config.h can use it
 655 esac
 656
 657 case "$host_cpu-$host_os" in
 658 ibmrt-*bsd4*)   LOCAL_CFLAGS="-ma -U__STDC__" ;;
 659 esac
 660
 661 case "$host_cpu-$host_vendor-$host_os" in
 662 m88k-motorola-sysv3)    LOCAL_CFLAGS=-DWAITPID_BROKEN ;;
 663 mips-pyramid-sysv4)     LOCAL_CFLAGS=-Xa ;;
 664 esac
 665
 666 #
 667 # Shared object configuration section.  These values are generated by
 668 # ${srcdir}/support/shobj-conf
 669 #
 670 if test "$ac_cv_func_dlopen" = "yes" && test -f ${srcdir}/support/shobj-conf
 671 then
 672         AC_MSG_CHECKING(shared object configuration for loadable builtins)
 673         eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C ${CC} -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
 674         AC_SUBST(SHOBJ_CC)
 675         AC_SUBST(SHOBJ_CFLAGS)
 676         AC_SUBST(SHOBJ_LD)
 677         AC_SUBST(SHOBJ_LDFLAGS)
 678         AC_SUBST(SHOBJ_XLDFLAGS)
 679         AC_SUBST(SHOBJ_LIBS)
 680         AC_SUBST(SHOBJ_STATUS)
 681         AC_MSG_RESULT($SHOBJ_STATUS)
 682 fi
 683
 684 # try to create a directory tree if the source is elsewhere
 685 # this should be packaged into a script accessible via ${srcdir}/support
 686 case "$srcdir" in
 687 .)      ;;
 688 *)      for d in doc tests support lib examples; do     # dirs
 689                 test -d $d || mkdir $d
 690         done
 691         for ld in readline glob tilde malloc sh termcap; do     # libdirs
 692                 test -d lib/$ld || mkdir lib/$ld
 693         done
 694         test -d examples/loadables || mkdir examples/loadables  # loadable builtins
 695         ;;
 696 esac
 697
 698 BUILD_DIR=`pwd`
 699
 700 AC_SUBST(PROFILE_FLAGS)
 701
 702 AC_SUBST(incdir)
 703 AC_SUBST(BUILD_DIR)
 704
 705 AC_SUBST(YACC)
 706 AC_SUBST(AR)
 707 AC_SUBST(ARFLAGS)
 708
 709 AC_SUBST(BASHVERS)
 710 AC_SUBST(BASHPATCH)
 711
 712 AC_SUBST(host_cpu)
 713 AC_SUBST(host_vendor)
 714 AC_SUBST(host_os)
 715
 716 AC_SUBST(LOCAL_LIBS)
 717 AC_SUBST(LOCAL_CFLAGS)
 718 AC_SUBST(LOCAL_LDFLAGS)
 719 AC_SUBST(LOCAL_DEFS)
 720
 721 #AC_SUBST(ALLOCA_SOURCE)
 722 #AC_SUBST(ALLOCA_OBJECT)
 723
 724 AC_OUTPUT([Makefile builtins/Makefile lib/readline/Makefile lib/glob/Makefile \
 725           lib/malloc/Makefile lib/sh/Makefile lib/termcap/Makefile \
 726           lib/tilde/Makefile doc/Makefile support/Makefile \
 727           examples/loadables/Makefile],
 728 [
 729 # Makefile uses this timestamp file to record whether config.h is up to date.
 730 echo timestamp > stamp-h
 731 ])