1dnl Process this file with autoconf to produce a configure script
2
3AC_INIT
4AC_CONFIG_SRCDIR([xmalloc.c])
5
6# This works around the fact that libtool configuration may change LD
7# for this particular configuration, but some shells, instead of
8# keeping the changes in LD private, export them just because LD is
9# exported.  We don't use libtool yet, but some day we might, so...
10ORIGINAL_LD_FOR_MULTILIBS=$LD
11
12dnl We use these options to decide which functions to include.
13AC_ARG_WITH(target-subdir,
14[  --with-target-subdir=SUBDIR      Configuring in a subdirectory for target])
15AC_ARG_WITH(build-subdir,
16[  --with-build-subdir=SUBDIR       Configuring in a subdirectory for build])
17AC_ARG_WITH(cross-host,
18[  --with-cross-host=HOST           Configuring with a cross compiler])
19AC_ARG_WITH(newlib,
20[  --with-newlib                    Configuring with newlib])
21
22if test "${srcdir}" = "."; then
23  if test -n "${with_build_subdir}"; then
24    libiberty_topdir="${srcdir}/../.."
25    with_target_subdir=
26  elif test -z "${with_target_subdir}"; then
27    libiberty_topdir="${srcdir}/.."
28  else
29    if test "${with_target_subdir}" != "."; then
30      libiberty_topdir="${srcdir}/${with_multisrctop}../.."
31    else
32      libiberty_topdir="${srcdir}/${with_multisrctop}.."
33    fi
34  fi
35else
36  libiberty_topdir="${srcdir}/.."
37fi
38AC_SUBST(libiberty_topdir)
39AC_CONFIG_AUX_DIR($libiberty_topdir)
40
41dnl Very limited version of automake's enable-maintainer-mode
42
43AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
44  dnl maintainer-mode is disabled by default
45  AC_ARG_ENABLE(maintainer-mode,
46[  --enable-maintainer-mode
47                          enable make rules and dependencies not useful
48                          (and sometimes confusing) to the casual installer],
49      maintainer_mode=$enableval,
50      maintainer_mode=no)
51
52AC_MSG_RESULT($maintainer_mode)
53
54if test "$maintainer_mode" = "yes"; then
55  MAINT=''
56  NOTMAINT='#'
57else
58  MAINT='#'
59  NOTMAINT=''
60fi
61AC_SUBST(MAINT)dnl
62AC_SUBST(NOTMAINT)dnl
63
64# Do we have a single-tree copy of texinfo?  Even if we do, we can't
65# rely on it - libiberty is built before texinfo.
66AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
67if test "x$MAKEINFO" = "x"; then
68    MAKEINFO="@echo makeinfo missing; true"
69    BUILD_INFO=
70else
71    BUILD_INFO=info
72    case "$MAKEINFO" in
73      */missing\ makeinfo*)
74	BUILD_INFO=
75	AC_MSG_WARN([
76*** Makeinfo is missing. Info documentation will not be built.])
77        ;;
78      *)
79	case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
80	  x*\ [[1-3]].* )
81	    MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
82	    BUILD_INFO=
83	    AC_MSG_WARN([
84*** Makeinfo is too old. Info documentation will not be built.])
85	  ;;
86	esac
87	;;
88    esac
89fi
90AC_SUBST(MAKEINFO)
91AC_SUBST(BUILD_INFO)
92
93AC_CHECK_PROG(PERL, perl, perl, )
94if test x"$PERL" = x""; then
95  HAVE_PERL='#'
96else
97  HAVE_PERL=''
98fi
99AC_SUBST(HAVE_PERL)
100
101AC_CANONICAL_HOST
102
103dnl When we start using automake:
104dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
105
106dnl These must be called before AM_PROG_LIBTOOL, because it may want
107dnl to call AC_CHECK_PROG.
108AC_CHECK_TOOL(AR, ar)
109AC_CHECK_TOOL(RANLIB, ranlib, :)
110
111dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
112# Add --enable-multilib to configure.
113# Default to --enable-multilib
114AC_ARG_ENABLE(multilib,
115[  --enable-multilib       build many library versions (default)],
116[case "$enableval" in
117  yes) multilib=yes ;;
118  no)  multilib=no ;;
119  *)   AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
120 esac],
121	      [multilib=yes])
122
123# Even if the default multilib is not a cross compilation,
124# it may be that some of the other multilibs are.
125if test $cross_compiling = no && test $multilib = yes \
126   && test "x${with_multisubdir}" != x ; then
127   cross_compiling=maybe
128fi
129
130# We may wish to install the target headers somewhere.
131AC_MSG_CHECKING([whether to install libiberty headers and static library])
132dnl install-libiberty is disabled by default
133
134AC_ARG_ENABLE(install-libiberty,
135[  --enable-install-libiberty       Install headers and library for end users],
136enable_install_libiberty=$enableval,
137enable_install_libiberty=no)dnl
138
139# Option parsed, now set things appropriately.
140case x"$enable_install_libiberty" in
141  xyes|x)
142    target_header_dir=libiberty
143    ;;
144  xno)
145    target_header_dir=
146    ;;
147  *)
148    # This could be sanity-checked in various ways...
149    target_header_dir="${enable_install_libiberty}"
150    ;;
151esac
152AC_MSG_RESULT($enable_install_libiberty)
153AC_MSG_NOTICE([target_header_dir = $target_header_dir])
154
155GCC_NO_EXECUTABLES
156AC_PROG_CC
157AC_GNU_SOURCE
158AC_SYS_LARGEFILE
159AC_PROG_CPP_WERROR
160
161ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
162			  -Wstrict-prototypes \
163			  -Wshadow=local], [ac_libiberty_warn_cflags])
164ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
165
166AC_PROG_CC_C_O
167# autoconf is lame and doesn't give us any substitution variable for this.
168if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
169  NO_MINUS_C_MINUS_O=yes
170else
171  OUTPUT_OPTION='-o $@'
172fi
173AC_SUBST(NO_MINUS_C_MINUS_O)
174AC_SUBST(OUTPUT_OPTION)
175
176AC_C_CONST
177AC_C_INLINE
178AC_C_BIGENDIAN
179
180dnl When we start using libtool:
181dnl Default to a non shared library.  This may be overridden by the
182dnl configure option --enable-shared.
183dnl AM_DISABLE_SHARED
184
185dnl When we start using libtool:
186dnl AM_PROG_LIBTOOL
187
188dnl When we start using automake:
189dnl AM_CONFIG_HEADER(config.h:config.in)
190AC_CONFIG_HEADER(config.h:config.in)
191
192dnl When we start using automake:
193dnl AM_MAINTAINER_MODE
194dnl AC_EXEEXT
195
196dnl When we start using automake:
197dnl AM_PROG_INSTALL
198AC_PROG_INSTALL
199
200# Don't build the shared library for build.
201if [[ -n "${with_build_subdir}" ]]; then
202  enable_shared=no
203fi
204
205frag=
206case "${host}" in
207  rs6000-ibm-aix3.1 | rs6000-ibm-aix)
208                        frag=mh-aix ;;
209  *-*-cxux7*)		frag=mh-cxux7 ;;
210  *-*-freebsd2.1.*)	frag=mh-fbsd21 ;;
211  *-*-freebsd2.2.[[012]])	frag=mh-fbsd21 ;;
212  i370-*-opened*)       frag=mh-openedition ;;
213  i[[34567]]86-*-windows*)	frag=mh-windows ;;
214esac
215
216if [[ -n "${frag}" ]]; then
217  frag=${libiberty_topdir}/libiberty/config/$frag
218fi
219
220GCC_PICFLAG
221
222# If they didn't specify --enable-shared, don't generate shared libs.
223case "${enable_shared}" in
224  yes) shared=yes ;;
225  no) shared=no ;;
226  "") shared=no ;;
227  *) shared=yes ;;
228esac
229
230# ...unless --enable-host-shared was passed from top-level config:
231if [[ "${enable_host_shared}" = "yes" ]]; then
232  shared=yes
233fi
234
235if [[ "${shared}" != "yes" ]]; then
236  PICFLAG=
237fi
238AC_SUBST(PICFLAG)
239
240NOASANFLAG=
241case " ${CFLAGS} " in
242  *\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
243esac
244AC_SUBST(NOASANFLAG)
245
246GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
247AC_SUBST(CET_HOST_FLAGS)
248
249echo "# Warning: this fragment is automatically generated" > temp-frag
250
251if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
252  echo "Appending ${frag} to xhost-mkfrag"
253  echo "# Following fragment copied from ${frag}" >> temp-frag
254  cat ${frag} >> temp-frag
255fi
256
257# record if we want to build shared libs.
258if [[ "${shared}" = "yes" ]]; then
259  echo enable_shared = yes >> temp-frag
260else
261  echo enable_shared = no >> temp-frag
262fi
263
264frag=xhost-mkfrag
265${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
266
267host_makefile_frag=${frag}
268AC_SUBST_FILE(host_makefile_frag)
269
270# It's OK to check for header files.  Although the compiler may not be
271# able to link anything, it had better be able to at least compile
272# something.
273AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h process.h sys/prctl.h)
274AC_HEADER_SYS_WAIT
275AC_HEADER_TIME
276
277libiberty_AC_DECLARE_ERRNO
278
279# Determine sizes of some types.
280AC_CHECK_SIZEOF([int])
281AC_CHECK_SIZEOF([long])
282AC_CHECK_SIZEOF([size_t])
283
284# Check for presense of long long
285AC_CHECK_TYPE([long long],
286  [AC_DEFINE(HAVE_LONG_LONG, 1, [Define if you have the `long long' type.]) AC_CHECK_SIZEOF([long long])],
287  [])
288
289# Look for a 64-bit type.
290AC_MSG_CHECKING([for a 64-bit type])
291AC_CACHE_VAL(liberty_cv_uint64,
292[AC_TRY_COMPILE(
293[#ifdef HAVE_STDINT_H
294#include <stdint.h>
295#endif],
296[extern uint64_t foo;],
297liberty_cv_uint64=uint64_t,
298[AC_TRY_COMPILE(
299[#ifdef HAVE_LIMITS_H
300#include <limits.h>
301#endif
302#ifndef CHAR_BIT
303#define CHAR_BIT 8
304#endif],
305[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
306liberty_cv_uint64="unsigned long",
307[AC_TRY_COMPILE(
308[#ifdef HAVE_LIMITS_H
309#include <limits.h>
310#endif
311#ifndef CHAR_BIT
312#define CHAR_BIT 8
313#endif],
314[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
315liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
316AC_MSG_RESULT($liberty_cv_uint64)
317if test "$liberty_cv_uint64" != none; then
318  AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
319                     [Define to an unsigned 64-bit type available in the compiler.])
320fi
321
322AC_TYPE_INTPTR_T
323AC_TYPE_UINTPTR_T
324AC_TYPE_SSIZE_T
325
326# Given the above check, we always have uintptr_t or a fallback
327# definition.  So define HAVE_UINTPTR_T in case any imported code
328# relies on it.
329AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
330
331AC_TYPE_PID_T
332
333# This is the list of functions which libiberty will provide if they
334# are not available on the host.
335
336funcs="asprintf"
337funcs="$funcs atexit"
338funcs="$funcs basename"
339funcs="$funcs bcmp"
340funcs="$funcs bcopy"
341funcs="$funcs bsearch"
342funcs="$funcs bzero"
343funcs="$funcs calloc"
344funcs="$funcs clock"
345funcs="$funcs ffs"
346funcs="$funcs getcwd"
347funcs="$funcs getpagesize"
348funcs="$funcs gettimeofday"
349funcs="$funcs index"
350funcs="$funcs insque"
351funcs="$funcs memchr"
352funcs="$funcs memcmp"
353funcs="$funcs memcpy"
354funcs="$funcs memmem"
355funcs="$funcs memmove"
356funcs="$funcs mempcpy"
357funcs="$funcs memset"
358funcs="$funcs mkstemps"
359funcs="$funcs putenv"
360funcs="$funcs random"
361funcs="$funcs rename"
362funcs="$funcs rindex"
363funcs="$funcs setenv"
364funcs="$funcs snprintf"
365funcs="$funcs sigsetmask"
366funcs="$funcs stpcpy"
367funcs="$funcs stpncpy"
368funcs="$funcs strcasecmp"
369funcs="$funcs strchr"
370funcs="$funcs strdup"
371funcs="$funcs strncasecmp"
372funcs="$funcs strndup"
373funcs="$funcs strnlen"
374funcs="$funcs strrchr"
375funcs="$funcs strstr"
376funcs="$funcs strtod"
377funcs="$funcs strtol"
378funcs="$funcs strtoul"
379funcs="$funcs strtoll"
380funcs="$funcs strtoull"
381funcs="$funcs strverscmp"
382funcs="$funcs tmpnam"
383funcs="$funcs vasprintf"
384funcs="$funcs vfprintf"
385funcs="$funcs vprintf"
386funcs="$funcs vsnprintf"
387funcs="$funcs vsprintf"
388funcs="$funcs waitpid"
389funcs="$funcs setproctitle"
390
391# Also in the old function.def file: alloca, vfork, getopt.
392
393vars="sys_errlist sys_nerr sys_siglist"
394
395checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
396 getsysinfo gettimeofday on_exit pipe2 psignal pstat_getdynamic pstat_getstatic \
397 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
398 sysmp table times wait3 wait4"
399
400# These are neither executed nor required, but they help keep
401# autoheader happy without adding a bunch of text to acconfig.h.
402if test "x" = "y"; then
403  AC_CHECK_FUNCS(asprintf atexit \
404    basename bcmp bcopy bsearch bzero \
405    calloc canonicalize_file_name clock \
406    dup3 \
407    ffs __fsetlocking \
408    getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
409    index insque \
410    memchr memcmp memcpy memmem memmove memset mkstemps \
411    on_exit \
412    pipe2 psignal pstat_getdynamic pstat_getstatic putenv \
413    random realpath rename rindex \
414    sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
415     stpcpy stpncpy strcasecmp strchr strdup \
416     strerror strncasecmp strndup strnlen strrchr strsignal strstr strtod \
417     strtol strtoul strtoll strtoull strverscmp sysconf sysctl sysmp \
418    table times tmpnam \
419    vasprintf vfprintf vprintf vsprintf \
420    wait3 wait4 waitpid)
421  AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf, strtol, strtoul, strtoll, strtoull, strnlen])
422  AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
423  AC_DEFINE(HAVE_SYS_NERR,    1, [Define if you have the sys_nerr variable.])
424  AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
425fi
426
427# For each of these functions, if the host does not provide the
428# function we want to put FN.o in LIBOBJS, and if the host does
429# provide the function, we want to define HAVE_FN in config.h.
430
431setobjs=
432CHECK=
433if test -n "${with_target_subdir}"; then
434
435  # We are being configured as a target library.  AC_REPLACE_FUNCS
436  # may not work correctly, because the compiler may not be able to
437  # link executables.  Note that we may still be being configured
438  # native.
439
440  # If we are being configured for newlib, we know which functions
441  # newlib provide and which ones we will be expected to provide.
442
443  if test "x${with_newlib}" = "xyes"; then
444    AC_LIBOBJ([asprintf])
445    AC_LIBOBJ([basename])
446    AC_LIBOBJ([insque])
447    AC_LIBOBJ([random])
448    AC_LIBOBJ([strdup])
449    AC_LIBOBJ([vasprintf])
450
451    for f in $funcs; do
452      case "$f" in
453	asprintf | basename | insque | random | strdup | vasprintf)
454	  ;;
455	*)
456	  n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
457	  AC_DEFINE_UNQUOTED($n)
458	  ;;
459      esac
460    done
461
462    # newlib doesnt provide any of the variables in $vars, so we
463    # dont have to check them here.
464
465    # Of the functions in $checkfuncs, newlib only has strerror.
466    AC_DEFINE(HAVE_STRERROR)
467
468    setobjs=yes
469
470  fi
471
472  # If we are being configured for Mingw, we know which functions
473  # Mingw provides and which ones we will be expected to provide.
474
475  case "${host}" in
476  *-*-mingw*)
477    AC_LIBOBJ([asprintf])
478    AC_LIBOBJ([basename])
479    AC_LIBOBJ([bcmp])
480    AC_LIBOBJ([bcopy])
481    AC_LIBOBJ([bzero])
482    AC_LIBOBJ([clock])
483    AC_LIBOBJ([ffs])
484    AC_LIBOBJ([getpagesize])
485    AC_LIBOBJ([index])
486    AC_LIBOBJ([insque])
487    AC_LIBOBJ([mempcpy])
488    AC_LIBOBJ([mkstemps])
489    AC_LIBOBJ([random])
490    AC_LIBOBJ([rindex])
491    AC_LIBOBJ([sigsetmask])
492    AC_LIBOBJ([stpcpy])
493    AC_LIBOBJ([stpncpy])
494    AC_LIBOBJ([strndup])
495    AC_LIBOBJ([strnlen])
496    AC_LIBOBJ([strverscmp])
497    AC_LIBOBJ([vasprintf])
498    AC_LIBOBJ([waitpid])
499
500    for f in $funcs; do
501      case "$f" in
502	asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strnlen | strverscmp | vasprintf | waitpid)
503	  ;;
504	*)
505	  n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
506	  AC_DEFINE_UNQUOTED($n)
507	  ;;
508      esac
509    done
510
511    # Mingw doesnt provide any of the variables in $vars, so we
512    # dont have to check them here.
513
514    # Of the functions in $checkfuncs, Mingw only has strerror.
515    AC_DEFINE(HAVE_STRERROR)
516
517    setobjs=yes
518    ;;
519
520  *-*-msdosdjgpp)
521    AC_LIBOBJ([vasprintf])
522    AC_LIBOBJ([vsnprintf])
523    AC_LIBOBJ([snprintf])
524    AC_LIBOBJ([asprintf])
525
526    for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
527             getcwd getpagesize getrusage gettimeofday \
528             index insque memchr memcmp memcpy memmove memset psignal \
529             putenv random rename rindex sbrk setenv stpcpy strcasecmp \
530             strchr strdup strerror strncasecmp strrchr strstr strtod \
531             strtol strtoul sysconf times tmpnam vfprintf vprintf \
532             vsprintf waitpid
533    do
534      n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
535      AC_DEFINE_UNQUOTED($n)
536    done
537
538
539    setobjs=yes
540    ;;
541
542  esac
543
544else
545
546   # Not a target library, so we set things up to run the test suite.
547   CHECK=really-check
548
549fi
550
551AC_SUBST(CHECK)
552AC_SUBST(target_header_dir)
553
554case "${host}" in
555  *-*-cygwin* | *-*-mingw*)
556    AC_DEFINE(HAVE_SYS_ERRLIST)
557    AC_DEFINE(HAVE_SYS_NERR)
558    ;;
559esac
560
561if test -z "${setobjs}"; then
562  case "${host}" in
563
564  *-*-vxworks*)
565    # Handle VxWorks configuration specially, since on VxWorks the
566    # libraries are actually on the target board, not in the file
567    # system.
568    AC_LIBOBJ([basename])
569    AC_LIBOBJ([getpagesize])
570    AC_LIBOBJ([insque])
571    AC_LIBOBJ([random])
572    AC_LIBOBJ([strcasecmp])
573    AC_LIBOBJ([strncasecmp])
574    AC_LIBOBJ([strdup])
575    AC_LIBOBJ([vfork])
576    AC_LIBOBJ([waitpid])
577    AC_LIBOBJ([vasprintf])
578    for f in $funcs; do
579      case "$f" in
580	basename | getpagesize | insque | random | strcasecmp)
581	  ;;
582	strncasecmp | strdup | vfork | waitpid | vasprintf)
583	  ;;
584	*)
585	  n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
586	  AC_DEFINE_UNQUOTED($n)
587	  ;;
588      esac
589    done
590
591    # VxWorks doesn't provide any of the variables in $vars, so we
592    # don't have to check them here.
593
594    # Of the functions in $checkfuncs, VxWorks only has strerror.
595    AC_DEFINE(HAVE_STRERROR)
596
597    setobjs=yes
598    ;;
599
600  esac
601fi
602
603if test -z "${setobjs}"; then
604
605  case "${host}" in
606
607  *-*-android*)
608    # On android, getpagesize is defined in unistd.h as a static inline
609    # function, which AC_CHECK_FUNCS does not handle properly.
610    ac_cv_func_getpagesize=yes
611    ;;
612
613  *-*-mingw32*)
614    # Under mingw32, sys_nerr and sys_errlist exist, but they are
615    # macros, so the test below won't find them.
616    libiberty_cv_var_sys_nerr=yes
617    libiberty_cv_var_sys_errlist=yes
618    ;;
619
620  *-*-msdosdjgpp*)
621    # vfork and fork are stubs.
622    ac_cv_func_vfork_works=no
623    ;;
624
625  *-*-uwin*)
626    # Under some versions of uwin, vfork is notoriously buggy and the test
627    # can hang configure; on other versions, vfork exists just as a stub.
628    # FIXME: This should be removed once vfork in uwin's runtime is fixed.
629    ac_cv_func_vfork_works=no
630    # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
631    # macros (actually, these are imported from a DLL, but the end effect
632    # is the same), so the test below won't find them.
633    libiberty_cv_var_sys_nerr=yes
634    libiberty_cv_var_sys_errlist=yes
635    ;;
636
637  *-*-*vms*)
638    # Under VMS, vfork works very different than on Unix. The standard test
639    # won't work, and it isn't easily adaptable. It makes more sense to
640    # just force it.
641    ac_cv_func_vfork_works=yes
642    ;;
643
644  esac
645
646  # We haven't set the list of objects yet.  Use the standard autoconf
647  # tests.  This will only work if the compiler works.
648  AC_ISC_POSIX
649  AC_REPLACE_FUNCS($funcs)
650  libiberty_AC_FUNC_C_ALLOCA
651  AC_FUNC_FORK
652  if test $ac_cv_func_vfork_works = no; then
653    AC_LIBOBJ([vfork])
654  fi
655  # We only need _doprnt if we might use it to implement v*printf.
656  if test $ac_cv_func_vprintf != yes \
657     || test $ac_cv_func_vfprintf != yes \
658     || test $ac_cv_func_vsprintf != yes; then
659    AC_REPLACE_FUNCS(_doprnt)
660  else
661    AC_CHECK_FUNCS(_doprnt)
662  fi
663
664  for v in $vars; do
665    AC_MSG_CHECKING([for $v])
666    AC_CACHE_VAL(libiberty_cv_var_$v,
667      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
668		      [eval "libiberty_cv_var_$v=yes"],
669		      [eval "libiberty_cv_var_$v=no"])])
670    if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
671      AC_MSG_RESULT(yes)
672      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
673      AC_DEFINE_UNQUOTED($n)
674    else
675      AC_MSG_RESULT(no)
676    fi
677  done
678
679  # special check for _system_configuration because AIX <4.3.2 do not
680  # contain the `physmem' member.
681  AC_MSG_CHECKING([for external symbol _system_configuration])
682  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
683			[[double x = _system_configuration.physmem;]])],
684    [AC_MSG_RESULT([yes])
685    AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
686	      [Define if you have the _system_configuration variable.])],
687    [AC_MSG_RESULT([no])])
688
689  AC_CHECK_FUNCS($checkfuncs)
690  AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
691  AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
692  AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
693  AC_CHECK_DECLS([strverscmp])
694  AC_CHECK_DECLS([strnlen])
695  libiberty_NEED_DECLARATION(canonicalize_file_name)
696fi
697
698# Figure out which version of pexecute to use.
699case "${host}" in
700     *-*-mingw* | *-*-winnt*)	pexecute=pex-win32  ;;
701     *-*-msdosdjgpp*)		pexecute=pex-djgpp  ;;
702     *-*-msdos*)		pexecute=pex-msdos  ;;
703     *)				pexecute=pex-unix   ;;
704esac
705AC_SUBST(pexecute)
706
707libiberty_AC_FUNC_STRNCMP
708
709# Install a library built with a cross compiler in $(tooldir) rather
710# than $(libdir).
711if test -z "${with_cross_host}"; then
712  INSTALL_DEST=libdir
713else
714  INSTALL_DEST=tooldir
715fi
716AC_SUBST(INSTALL_DEST)
717
718m4_pattern_allow(LIBOBJS)
719L=""
720for l in x $LIBOBJS; do
721  case $l in
722    x) ;;
723    *) L="$L ./$l" ;;
724  esac
725done
726LIBOBJS="$L"
727
728dnl Required by html and install-html
729AC_SUBST(datarootdir)
730AC_SUBST(docdir)
731AC_SUBST(htmldir)
732
733# We need multilib support, but only if configuring for the target.
734AC_CONFIG_FILES([Makefile testsuite/Makefile])
735AC_CONFIG_COMMANDS([default],
736  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
737if test -n "$CONFIG_FILES"; then
738  if test -n "${with_target_subdir}"; then
739    # FIXME: We shouldn't need to set ac_file
740    ac_file=Makefile
741    LD="${ORIGINAL_LD_FOR_MULTILIBS}"
742    . ${libiberty_topdir}/config-ml.in
743  fi
744fi]],
745[[srcdir=${srcdir}
746host=${host}
747target=${target}
748with_target_subdir=${with_target_subdir}
749with_multisubdir=${with_multisubdir}
750ac_configure_args="--enable-multilib ${ac_configure_args}"
751CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
752ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
753libiberty_topdir=${libiberty_topdir}
754]])
755AC_OUTPUT
756