Mercurial > hg > CbC > CbC_gcc

comparison libiberty/configure.ac @ 0:a06113de4d67

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children 77e2b8dfacca
comparison
equal deleted inserted replaced
-1:000000000000 0:a06113de4d67
1 dnl Process this file with autoconf to produce a configure script
2
3 AC_PREREQ(2.59)
4 AC_INIT
5 AC_CONFIG_SRCDIR([xmalloc.c])
6
7 # This works around the fact that libtool configuration may change LD
8 # for this particular configuration, but some shells, instead of
9 # keeping the changes in LD private, export them just because LD is
10 # exported. We don't use libtool yet, but some day we might, so...
11 ORIGINAL_LD_FOR_MULTILIBS=$LD
12
13 dnl We use these options to decide which functions to include.
14 AC_ARG_WITH(target-subdir,
15 [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
16 AC_ARG_WITH(build-subdir,
17 [ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
18 AC_ARG_WITH(cross-host,
19 [ --with-cross-host=HOST Configuring with a cross compiler])
20 AC_ARG_WITH(newlib,
21 [ --with-newlib Configuring with newlib])
22
23 if test "${srcdir}" = "."; then
24 if test -n "${with_build_subdir}"; then
25 libiberty_topdir="${srcdir}/../.."
26 with_target_subdir=
27 elif test -z "${with_target_subdir}"; then
28 libiberty_topdir="${srcdir}/.."
29 else
30 if test "${with_target_subdir}" != "."; then
31 libiberty_topdir="${srcdir}/${with_multisrctop}../.."
32 else
33 libiberty_topdir="${srcdir}/${with_multisrctop}.."
34 fi
35 fi
36 else
37 libiberty_topdir="${srcdir}/.."
38 fi
39 AC_SUBST(libiberty_topdir)
40 AC_CONFIG_AUX_DIR($libiberty_topdir)
41
42 dnl Very limited version of automake's enable-maintainer-mode
43
44 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
45 dnl maintainer-mode is disabled by default
46 AC_ARG_ENABLE(maintainer-mode,
47 [ --enable-maintainer-mode
48 enable make rules and dependencies not useful
49 (and sometimes confusing) to the casual installer],
50 maintainer_mode=$enableval,
51 maintainer_mode=no)
52
53 AC_MSG_RESULT($maintainer_mode)
54
55 if test "$maintainer_mode" = "yes"; then
56 MAINT=''
57 NOTMAINT='#'
58 else
59 MAINT='#'
60 NOTMAINT=''
61 fi
62 AC_SUBST(MAINT)dnl
63 AC_SUBST(NOTMAINT)dnl
64
65 # Do we have a single-tree copy of texinfo? Even if we do, we can't
66 # rely on it - libiberty is built before texinfo.
67 AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
68 if test "x$MAKEINFO" = "x"; then
69 MAKEINFO="@echo makeinfo missing; true"
70 BUILD_INFO=
71 else
72 BUILD_INFO=info
73 case "$MAKEINFO" in
74 */missing\ makeinfo*)
75 BUILD_INFO=
76 AC_MSG_WARN([
77 *** Makeinfo is missing. Info documentation will not be built.])
78 ;;
79 *)
80 case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
81 x*\ [[1-3]].* )
82 MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
83 BUILD_INFO=
84 AC_MSG_WARN([
85 *** Makeinfo is too old. Info documentation will not be built.])
86 ;;
87 esac
88 ;;
89 esac
90 fi
91 AC_SUBST(MAKEINFO)
92 AC_SUBST(BUILD_INFO)
93
94 AC_CHECK_PROG(PERL, perl, perl, )
95 if test x"$PERL" = x""; then
96 HAVE_PERL='#'
97 else
98 HAVE_PERL=''
99 fi
100 AC_SUBST(HAVE_PERL)
101
102 AC_CANONICAL_HOST
103
104 dnl When we start using automake:
105 dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
106
107 dnl These must be called before AM_PROG_LIBTOOL, because it may want
108 dnl to call AC_CHECK_PROG.
109 AC_CHECK_TOOL(AR, ar)
110 AC_CHECK_TOOL(RANLIB, ranlib, :)
111
112 dnl When switching to automake, replace the following with AM_ENABLE_MULTILIB.
113 # Add --enable-multilib to configure.
114 # Default to --enable-multilib
115 AC_ARG_ENABLE(multilib,
116 [ --enable-multilib build many library versions (default)],
117 [case "$enableval" in
118 yes) multilib=yes ;;
119 no) multilib=no ;;
120 *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
121 esac],
122 [multilib=yes])
123
124 # Even if the default multilib is not a cross compilation,
125 # it may be that some of the other multilibs are.
126 if test $cross_compiling = no && test $multilib = yes \
127 && test "x${with_multisubdir}" != x ; then
128 cross_compiling=maybe
129 fi
130
131 GCC_NO_EXECUTABLES
132 AC_PROG_CC
133 AC_SYS_LARGEFILE
134 AC_PROG_CPP_WERROR
135
136 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
137 -Wstrict-prototypes], [ac_libiberty_warn_cflags])
138 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
139
140 AC_PROG_CC_C_O
141 # autoconf is lame and doesn't give us any substitution variable for this.
142 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
143 NO_MINUS_C_MINUS_O=yes
144 else
145 OUTPUT_OPTION='-o $@'
146 fi
147 AC_SUBST(NO_MINUS_C_MINUS_O)
148 AC_SUBST(OUTPUT_OPTION)
149
150 AC_C_CONST
151 AC_C_INLINE
152 AC_C_BIGENDIAN
153
154 dnl When we start using libtool:
155 dnl Default to a non shared library. This may be overridden by the
156 dnl configure option --enable-shared.
157 dnl AM_DISABLE_SHARED
158
159 dnl When we start using libtool:
160 dnl AM_PROG_LIBTOOL
161
162 dnl When we start using automake:
163 dnl AM_CONFIG_HEADER(config.h:config.in)
164 AC_CONFIG_HEADER(config.h:config.in)
165
166 dnl When we start using automake:
167 dnl AM_MAINTAINER_MODE
168 dnl AC_EXEEXT
169
170 dnl When we start using automake:
171 dnl AM_PROG_INSTALL
172 AC_PROG_INSTALL
173
174 # Don't build the shared library for build.
175 if [[ -n "${with_build_subdir}" ]]; then
176 enable_shared=no
177 fi
178
179 frag=
180 case "${host}" in
181 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
182 frag=mh-aix ;;
183 *-*-cxux7*) frag=mh-cxux7 ;;
184 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
185 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
186 i370-*-opened*) frag=mh-openedition ;;
187 i[[34567]]86-*-windows*) frag=mh-windows ;;
188 esac
189
190 if [[ -n "${frag}" ]]; then
191 frag=${libiberty_topdir}/libiberty/config/$frag
192 fi
193
194 # If they didn't specify --enable-shared, don't generate shared libs.
195 case "${enable_shared}" in
196 yes) shared=yes ;;
197 no) shared=no ;;
198 "") shared=no ;;
199 *) shared=yes ;;
200 esac
201 if [[ "${shared}" = "yes" ]]; then
202 case "${host}" in
203 *-*-cygwin*) ;;
204 alpha*-*-linux*) PICFLAG=-fPIC ;;
205 arm*-*-*) PICFLAG=-fPIC ;;
206 hppa*-*-*) PICFLAG=-fPIC ;;
207 i370-*-*) PICFLAG=-fPIC ;;
208 ia64-*-*) PICFLAG=-fpic ;;
209 i[[34567]]86-*-* | x86_64-*-*)
210 PICFLAG=-fpic ;;
211 m68k-*-*) PICFLAG=-fpic ;;
212 mips*-*-linux*) PICFLAG=-fPIC ;;
213 powerpc*-*-aix*) ;;
214 powerpc*-*-*) PICFLAG=-fPIC ;;
215 sparc*-*-*) case "${CFLAGS}" in
216 *-fpic* ) PICFLAG=-fpic ;;
217 * ) PICFLAG=-fPIC ;;
218 esac ;;
219 s390*-*-*) PICFLAG=-fpic ;;
220 esac
221 fi
222 AC_SUBST(PICFLAG)
223
224 echo "# Warning: this fragment is automatically generated" > temp-frag
225
226 if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
227 echo "Appending ${frag} to xhost-mkfrag"
228 echo "# Following fragment copied from ${frag}" >> temp-frag
229 cat ${frag} >> temp-frag
230 fi
231
232 # record if we want to build shared libs.
233 if [[ "${shared}" = "yes" ]]; then
234 echo enable_shared = yes >> temp-frag
235 else
236 echo enable_shared = no >> temp-frag
237 fi
238
239 frag=xhost-mkfrag
240 ${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
241
242 host_makefile_frag=${frag}
243 AC_SUBST_FILE(host_makefile_frag)
244
245 # It's OK to check for header files. Although the compiler may not be
246 # able to link anything, it had better be able to at least compile
247 # something.
248 AC_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)
249 AC_HEADER_SYS_WAIT
250 AC_HEADER_TIME
251
252 libiberty_AC_DECLARE_ERRNO
253
254 # Determine the size of an int for struct fibnode.
255 AC_CHECK_SIZEOF([int])
256
257 AC_CHECK_TYPE(uintptr_t, unsigned long)
258
259 # Look for a 64-bit type.
260 AC_MSG_CHECKING([for a 64-bit type])
261 AC_CACHE_VAL(liberty_cv_uint64,
262 [AC_TRY_COMPILE(
263 [#ifdef HAVE_STDINT_H
264 #include <stdint.h>
265 #endif],
266 [extern uint64_t foo;],
267 liberty_cv_uint64=uint64_t,
268 [AC_TRY_COMPILE(
269 [#ifdef HAVE_LIMITS_H
270 #include <limits.h>
271 #endif
272 #ifndef CHAR_BIT
273 #define CHAR_BIT 8
274 #endif],
275 [extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
276 liberty_cv_uint64="unsigned long",
277 [AC_TRY_COMPILE(
278 [#ifdef HAVE_LIMITS_H
279 #include <limits.h>
280 #endif
281 #ifndef CHAR_BIT
282 #define CHAR_BIT 8
283 #endif],
284 [extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
285 liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
286 AC_MSG_RESULT($liberty_cv_uint64)
287 if test "$liberty_cv_uint64" != none; then
288 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
289 [Define to an unsigned 64-bit type available in the compiler.])
290 fi
291
292 # Given the above check, we always have uintptr_t or a fallback
293 # definition. So define HAVE_UINTPTR_T in case any imported code
294 # relies on it.
295 AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
296
297 AC_TYPE_PID_T
298
299 # This is the list of functions which libiberty will provide if they
300 # are not available on the host.
301
302 funcs="asprintf"
303 funcs="$funcs atexit"
304 funcs="$funcs basename"
305 funcs="$funcs bcmp"
306 funcs="$funcs bcopy"
307 funcs="$funcs bsearch"
308 funcs="$funcs bzero"
309 funcs="$funcs calloc"
310 funcs="$funcs clock"
311 funcs="$funcs ffs"
312 funcs="$funcs getcwd"
313 funcs="$funcs getpagesize"
314 funcs="$funcs gettimeofday"
315 funcs="$funcs index"
316 funcs="$funcs insque"
317 funcs="$funcs memchr"
318 funcs="$funcs memcmp"
319 funcs="$funcs memcpy"
320 funcs="$funcs memmove"
321 funcs="$funcs mempcpy"
322 funcs="$funcs memset"
323 funcs="$funcs mkstemps"
324 funcs="$funcs putenv"
325 funcs="$funcs random"
326 funcs="$funcs rename"
327 funcs="$funcs rindex"
328 funcs="$funcs setenv"
329 funcs="$funcs snprintf"
330 funcs="$funcs sigsetmask"
331 funcs="$funcs stpcpy"
332 funcs="$funcs stpncpy"
333 funcs="$funcs strcasecmp"
334 funcs="$funcs strchr"
335 funcs="$funcs strdup"
336 funcs="$funcs strncasecmp"
337 funcs="$funcs strndup"
338 funcs="$funcs strrchr"
339 funcs="$funcs strstr"
340 funcs="$funcs strtod"
341 funcs="$funcs strtol"
342 funcs="$funcs strtoul"
343 funcs="$funcs strverscmp"
344 funcs="$funcs tmpnam"
345 funcs="$funcs vasprintf"
346 funcs="$funcs vfprintf"
347 funcs="$funcs vprintf"
348 funcs="$funcs vsnprintf"
349 funcs="$funcs vsprintf"
350 funcs="$funcs waitpid"
351
352 # Also in the old function.def file: alloca, vfork, getopt.
353
354 vars="sys_errlist sys_nerr sys_siglist"
355
356 checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
357 checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
358 checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
359
360 # These are neither executed nor required, but they help keep
361 # autoheader happy without adding a bunch of text to acconfig.h.
362 if test "x" = "y"; then
363 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
364 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
365 memmove mempcpy memset putenv random rename rindex sigsetmask \
366 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
367 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
368 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
369 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
370 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
371 realpath canonicalize_file_name __fsetlocking)
372 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
373 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
374 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
375 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
376 fi
377
378 # For each of these functions, if the host does not provide the
379 # function we want to put FN.o in LIBOBJS, and if the host does
380 # provide the function, we want to define HAVE_FN in config.h.
381
382 setobjs=
383 CHECK=
384 target_header_dir=
385 if test -n "${with_target_subdir}"; then
386
387 # We are being configured as a target library. AC_REPLACE_FUNCS
388 # may not work correctly, because the compiler may not be able to
389 # link executables. Note that we may still be being configured
390 # native.
391
392 # If we are being configured for newlib, we know which functions
393 # newlib provide and which ones we will be expected to provide.
394
395 if test "x${with_newlib}" = "xyes"; then
396 AC_LIBOBJ([asprintf])
397 AC_LIBOBJ([basename])
398 AC_LIBOBJ([insque])
399 AC_LIBOBJ([random])
400 AC_LIBOBJ([strdup])
401 AC_LIBOBJ([vasprintf])
402
403 for f in $funcs; do
404 case "$f" in
405 asprintf | basename | insque | random | strdup | vasprintf)
406 ;;
407 *)
408 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
409 AC_DEFINE_UNQUOTED($n)
410 ;;
411 esac
412 done
413
414 # newlib doesnt provide any of the variables in $vars, so we
415 # dont have to check them here.
416
417 # Of the functions in $checkfuncs, newlib only has strerror.
418 AC_DEFINE(HAVE_STRERROR)
419
420 setobjs=yes
421
422 fi
423
424 # If we are being configured for Mingw, we know which functions
425 # Mingw provides and which ones we will be expected to provide.
426
427 case "${host}" in
428 *-*-mingw*)
429 AC_LIBOBJ([asprintf])
430 AC_LIBOBJ([basename])
431 AC_LIBOBJ([bcmp])
432 AC_LIBOBJ([bcopy])
433 AC_LIBOBJ([bzero])
434 AC_LIBOBJ([clock])
435 AC_LIBOBJ([ffs])
436 AC_LIBOBJ([getpagesize])
437 AC_LIBOBJ([index])
438 AC_LIBOBJ([insque])
439 AC_LIBOBJ([mempcpy])
440 AC_LIBOBJ([mkstemps])
441 AC_LIBOBJ([random])
442 AC_LIBOBJ([rindex])
443 AC_LIBOBJ([sigsetmask])
444 AC_LIBOBJ([stpcpy])
445 AC_LIBOBJ([stpncpy])
446 AC_LIBOBJ([strndup])
447 AC_LIBOBJ([strverscmp])
448 AC_LIBOBJ([vasprintf])
449 AC_LIBOBJ([waitpid])
450
451 for f in $funcs; do
452 case "$f" in
453 asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid)
454 ;;
455 *)
456 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
457 AC_DEFINE_UNQUOTED($n)
458 ;;
459 esac
460 done
461
462 # Mingw doesnt provide any of the variables in $vars, so we
463 # dont have to check them here.
464
465 # Of the functions in $checkfuncs, Mingw only has strerror.
466 AC_DEFINE(HAVE_STRERROR)
467
468 setobjs=yes
469 ;;
470
471 esac
472
473 # We may wish to install the target headers somewhere.
474 AC_ARG_ENABLE(install-libiberty,
475 [ --enable-install-libiberty Install headers for end users],
476 enable_install_libiberty=$enableval,
477 enable_install_libiberty=no)dnl
478
479 # Option parsed, now set things appropriately.
480 case x"$enable_install_libiberty" in
481 xyes|x)
482 target_header_dir=libiberty
483 ;;
484 xno)
485 target_header_dir=
486 ;;
487 *)
488 # This could be sanity-checked in various ways...
489 target_header_dir="${enable_install_libiberty}"
490 ;;
491 esac
492
493
494 else
495
496 # Not a target library, so we set things up to run the test suite.
497 CHECK=really-check
498
499 fi
500
501 AC_SUBST(CHECK)
502 AC_SUBST(target_header_dir)
503
504 case "${host}" in
505 *-*-cygwin* | *-*-mingw*)
506 AC_DEFINE(HAVE_SYS_ERRLIST)
507 AC_DEFINE(HAVE_SYS_NERR)
508 ;;
509 esac
510
511 if test -z "${setobjs}"; then
512 case "${host}" in
513
514 *-*-vxworks*)
515 # Handle VxWorks configuration specially, since on VxWorks the
516 # libraries are actually on the target board, not in the file
517 # system.
518 AC_LIBOBJ([basename])
519 AC_LIBOBJ([getpagesize])
520 AC_LIBOBJ([insque])
521 AC_LIBOBJ([random])
522 AC_LIBOBJ([strcasecmp])
523 AC_LIBOBJ([strncasecmp])
524 AC_LIBOBJ([strdup])
525 AC_LIBOBJ([vfork])
526 AC_LIBOBJ([waitpid])
527 AC_LIBOBJ([vasprintf])
528 for f in $funcs; do
529 case "$f" in
530 basename | getpagesize | insque | random | strcasecmp)
531 ;;
532 strncasecmp | strdup | vfork | waitpid | vasprintf)
533 ;;
534 *)
535 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
536 AC_DEFINE_UNQUOTED($n)
537 ;;
538 esac
539 done
540
541 # VxWorks doesn't provide any of the variables in $vars, so we
542 # don't have to check them here.
543
544 # Of the functions in $checkfuncs, VxWorks only has strerror.
545 AC_DEFINE(HAVE_STRERROR)
546
547 setobjs=yes
548 ;;
549
550 *-*-msdosdjgpp)
551 for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
552 getcwd getpagesize getrusage gettimeofday \
553 index insque memchr memcmp memcpy memmove memset psignal \
554 putenv random rename rindex sbrk setenv stpcpy strcasecmp \
555 strchr strdup strerror strncasecmp strrchr strstr strtod \
556 strtol strtoul sysconf times tmpnam vfprintf vprintf \
557 vsprintf waitpid
558 do
559 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
560 AC_DEFINE_UNQUOTED($n)
561 done
562
563
564 setobjs=yes
565 ;;
566
567 esac
568 fi
569
570 if test -z "${setobjs}"; then
571
572 case "${host}" in
573
574 *-*-mingw32*)
575 # Under mingw32, sys_nerr and sys_errlist exist, but they are
576 # macros, so the test below won't find them.
577 libiberty_cv_var_sys_nerr=yes
578 libiberty_cv_var_sys_errlist=yes
579 ;;
580
581 *-*-msdosdjgpp*)
582 # vfork and fork are stubs.
583 ac_cv_func_vfork_works=no
584 ;;
585
586 *-*-uwin*)
587 # Under some versions of uwin, vfork is notoriously buggy and the test
588 # can hang configure; on other versions, vfork exists just as a stub.
589 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
590 ac_cv_func_vfork_works=no
591 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
592 # macros (actually, these are imported from a DLL, but the end effect
593 # is the same), so the test below won't find them.
594 libiberty_cv_var_sys_nerr=yes
595 libiberty_cv_var_sys_errlist=yes
596 ;;
597
598 *-*-*vms*)
599 # Under VMS, vfork works very different than on Unix. The standard test
600 # won't work, and it isn't easily adaptable. It makes more sense to
601 # just force it.
602 ac_cv_func_vfork_works=yes
603 ;;
604
605 esac
606
607 # We haven't set the list of objects yet. Use the standard autoconf
608 # tests. This will only work if the compiler works.
609 AC_ISC_POSIX
610 AC_REPLACE_FUNCS($funcs)
611 libiberty_AC_FUNC_C_ALLOCA
612 AC_FUNC_FORK
613 if test $ac_cv_func_vfork_works = no; then
614 AC_LIBOBJ([vfork])
615 fi
616 # We only need _doprnt if we might use it to implement v*printf.
617 if test $ac_cv_func_vprintf != yes \
618 || test $ac_cv_func_vfprintf != yes \
619 || test $ac_cv_func_vsprintf != yes; then
620 AC_REPLACE_FUNCS(_doprnt)
621 else
622 AC_CHECK_FUNCS(_doprnt)
623 fi
624
625 for v in $vars; do
626 AC_MSG_CHECKING([for $v])
627 AC_CACHE_VAL(libiberty_cv_var_$v,
628 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
629 [eval "libiberty_cv_var_$v=yes"],
630 [eval "libiberty_cv_var_$v=no"])])
631 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
632 AC_MSG_RESULT(yes)
633 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
634 AC_DEFINE_UNQUOTED($n)
635 else
636 AC_MSG_RESULT(no)
637 fi
638 done
639
640 # special check for _system_configuration because AIX <4.3.2 do not
641 # contain the `physmem' member.
642 AC_MSG_CHECKING([for external symbol _system_configuration])
643 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
644 [[double x = _system_configuration.physmem;]])],
645 [AC_MSG_RESULT([yes])
646 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
647 [Define if you have the _system_configuration variable.])],
648 [AC_MSG_RESULT([no])])
649
650 AC_CHECK_FUNCS($checkfuncs)
651 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
652 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
653 AC_CHECK_DECLS([strverscmp])
654 libiberty_NEED_DECLARATION(canonicalize_file_name)
655 fi
656
657 # Figure out which version of pexecute to use.
658 case "${host}" in
659 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
660 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
661 *-*-msdos*) pexecute=./pex-msdos.o ;;
662 *) pexecute=./pex-unix.o ;;
663 esac
664 AC_SUBST(pexecute)
665
666 libiberty_AC_FUNC_STRNCMP
667
668 # Install a library built with a cross compiler in $(tooldir) rather
669 # than $(libdir).
670 if test -z "${with_cross_host}"; then
671 INSTALL_DEST=libdir
672 else
673 INSTALL_DEST=tooldir
674 fi
675 AC_SUBST(INSTALL_DEST)
676
677 m4_pattern_allow(LIBOBJS)
678 L=""
679 for l in x $LIBOBJS; do
680 case $l in
681 x) ;;
682 *) L="$L ./$l" ;;
683 esac
684 done
685 LIBOBJS="$L"
686
687 dnl Required by html and install-html
688 AC_SUBST(datarootdir)
689 AC_SUBST(docdir)
690 AC_SUBST(htmldir)
691
692 # We need multilib support, but only if configuring for the target.
693 AC_CONFIG_FILES([Makefile testsuite/Makefile])
694 AC_CONFIG_COMMANDS([default],
695 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
696 if test -n "$CONFIG_FILES"; then
697 if test -n "${with_target_subdir}"; then
698 # FIXME: We shouldn't need to set ac_file
699 ac_file=Makefile
700 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
701 . ${libiberty_topdir}/config-ml.in
702 fi
703 fi]],
704 [[srcdir=${srcdir}
705 host=${host}
706 target=${target}
707 with_target_subdir=${with_target_subdir}
708 with_multisubdir=${with_multisubdir}
709 ac_configure_args="--enable-multilib ${ac_configure_args}"
710 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
711 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
712 libiberty_topdir=${libiberty_topdir}
713 ]])
714 AC_OUTPUT