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[thirdparty/gcc.git] / libiberty / configure.ac
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3affd5f0 1dnl Process this file with autoconf to produce a configure script
6599da04 2
a4f74b58
KC
3AC_PREREQ(2.59)
4AC_INIT
5AC_CONFIG_SRCDIR([xmalloc.c])
6599da04 6
6706f116
AO
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...
11ORIGINAL_LD_FOR_MULTILIBS=$LD
12
3affd5f0
JL
13dnl We use these options to decide which functions to include.
14AC_ARG_WITH(target-subdir,
cd862df8
L
15[ --with-target-subdir=SUBDIR Configuring in a subdirectory for target])
16AC_ARG_WITH(build-subdir,
17[ --with-build-subdir=SUBDIR Configuring in a subdirectory for build])
ca6b370d
JL
18AC_ARG_WITH(cross-host,
19[ --with-cross-host=HOST Configuring with a cross compiler])
3affd5f0
JL
20AC_ARG_WITH(newlib,
21[ --with-newlib Configuring with newlib])
6599da04 22
3affd5f0 23if test "${srcdir}" = "."; then
cd862df8
L
24 if test -n "${with_build_subdir}"; then
25 libiberty_topdir="${srcdir}/../.."
26 with_target_subdir=
27 elif test -z "${with_target_subdir}"; then
3affd5f0
JL
28 libiberty_topdir="${srcdir}/.."
29 else
30 if test "${with_target_subdir}" != "."; then
31 libiberty_topdir="${srcdir}/${with_multisrctop}../.."
32 else
33 libiberty_topdir="${srcdir}/${with_multisrctop}.."
34 fi
35 fi
36else
37 libiberty_topdir="${srcdir}/.."
38fi
d8c22ce7 39AC_SUBST(libiberty_topdir)
3affd5f0
JL
40AC_CONFIG_AUX_DIR($libiberty_topdir)
41
aaa5f039
DD
42dnl Very limited version of automake's enable-maintainer-mode
43
44AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
45 dnl maintainer-mode is disabled by default
46 AC_ARG_ENABLE(maintainer-mode,
47[ --enable-maintainer-mode
48 enable make rules and dependencies not useful
49 (and sometimes confusing) to the casual installer],
50 maintainer_mode=$enableval,
51 maintainer_mode=no)
52
53AC_MSG_RESULT($maintainer_mode)
54
55if test "$maintainer_mode" = "yes"; then
56 MAINT=''
57 NOTMAINT='#'
58else
59 MAINT='#'
60 NOTMAINT=''
61fi
62AC_SUBST(MAINT)dnl
63AC_SUBST(NOTMAINT)dnl
64
ae9092da
DD
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.
67AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
f749bd83
AM
68if test "x$MAKEINFO" = "x"; then
69 MAKEINFO="@echo makeinfo missing; true"
ae9092da 70 BUILD_INFO=
f749bd83
AM
71else
72 BUILD_INFO=info
c0590bfd
L
73 case "$MAKEINFO" in
74 */missing\ makeinfo*)
f749bd83
AM
75 BUILD_INFO=
76 AC_MSG_WARN([
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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 $MAKEINFO is too old, 4.0 or newer required; true"
83 BUILD_INFO=
84 AC_MSG_WARN([
ae9092da 85*** Makeinfo is too old. Info documentation will not be built.])
c0590bfd
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86 ;;
87 esac
f749bd83
AM
88 ;;
89 esac
90fi
ae9092da 91AC_SUBST(MAKEINFO)
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DD
92AC_SUBST(BUILD_INFO)
93
94AC_CHECK_PROG(PERL, perl, perl, )
95if test x"$PERL" = x""; then
96 HAVE_PERL='#'
97else
98 HAVE_PERL=''
99fi
100AC_SUBST(HAVE_PERL)
101
3affd5f0
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102AC_CANONICAL_HOST
103
104dnl When we start using automake:
105dnl AM_INIT_AUTOMAKE(libiberty, 1.0)
106
107dnl These must be called before AM_PROG_LIBTOOL, because it may want
108dnl to call AC_CHECK_PROG.
109AC_CHECK_TOOL(AR, ar)
110AC_CHECK_TOOL(RANLIB, ranlib, :)
111
238235ef
DJ
112GCC_NO_EXECUTABLES
113AC_PROG_CC
b033df90 114AC_PROG_CPP_WERROR
238235ef 115
e8f9ec35
GDR
116# Warn C++ incompatibilities if supported.
117AC_CACHE_CHECK(
118 [whether ${CC} accepts -Wc++-compat],
119 [ac_cv_prog_cc_w_cxx_compat],
120 [save_CFLAGS="$CFLAGS"
121 CFLAGS="-Wc++-compat"
122 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
123 [ac_cv_prog_cc_w_cxx_compat=yes],
124 [ac_cv_prog_cc_w_cxx_compat=no])
125 CFLAGS="$save_CFLAGS"
126 ])
127
128
238235ef 129if test x$GCC = xyes; then
f9a9ac80 130 ac_libiberty_warn_cflags='-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes'
238235ef 131fi
e8f9ec35
GDR
132if test $ac_cv_prog_cc_w_cxx_compat = yes ; then
133 ac_libiberty_warn_cflags="${ac_libiberty_warn_cflags} -Wc++-compat"
134fi
238235ef 135AC_SUBST(ac_libiberty_warn_cflags)
3affd5f0 136
24f2cabb
L
137AC_PROG_CC_C_O
138# autoconf is lame and doesn't give us any substitution variable for this.
139if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
140 NO_MINUS_C_MINUS_O=yes
141else
142 OUTPUT_OPTION='-o $@'
143fi
144AC_SUBST(NO_MINUS_C_MINUS_O)
145AC_SUBST(OUTPUT_OPTION)
146
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147AC_C_CONST
148AC_C_INLINE
fbc1bc09 149AC_C_BIGENDIAN
3affd5f0 150
24f2cabb 151dnl When we start using libtool:
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JL
152dnl Default to a non shared library. This may be overridden by the
153dnl configure option --enable-shared.
24f2cabb 154dnl AM_DISABLE_SHARED
3affd5f0 155
24f2cabb
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156dnl When we start using libtool:
157dnl AM_PROG_LIBTOOL
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158
159dnl When we start using automake:
160dnl AM_CONFIG_HEADER(config.h:config.in)
161AC_CONFIG_HEADER(config.h:config.in)
162
163dnl When we start using automake:
164dnl AM_MAINTAINER_MODE
dd8f3ed5 165dnl AC_EXEEXT
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166
167dnl When we start using automake:
168dnl AM_PROG_INSTALL
169AC_PROG_INSTALL
6599da04 170
769b009e
KC
171# Don't build the shared library for build.
172if [[ -n "${with_build_subdir}" ]]; then
173 enable_shared=no
174fi
175
176frag=
177case "${host}" in
178 rs6000-ibm-aix3.1 | rs6000-ibm-aix)
179 frag=mh-aix ;;
180 *-*-cxux7*) frag=mh-cxux7 ;;
181 *-*-freebsd2.1.*) frag=mh-fbsd21 ;;
182 *-*-freebsd2.2.[[012]]) frag=mh-fbsd21 ;;
183 i370-*-opened*) frag=mh-openedition ;;
184 i[[34567]]86-*-windows*) frag=mh-windows ;;
185esac
186
187if [[ -n "${frag}" ]]; then
188 frags=${libiberty_topdir}/libiberty/config/$frag
189else
190 frags=
191fi
192
193# If they didn't specify --enable-shared, don't generate shared libs.
194case "${enable_shared}" in
195 yes) shared=yes ;;
196 no) shared=no ;;
197 "") shared=no ;;
198 *) shared=yes ;;
199esac
200if [[ "${shared}" = "yes" ]]; then
201 frag=
202 case "${host}" in
203 *-*-cygwin*) ;;
204 alpha*-*-linux*) frag=mh-elfalphapic ;;
205 arm*-*-*) frag=mh-armpic ;;
206 hppa*-*-*) frag=mh-papic ;;
207 i[[34567]]86-*-* | x86_64-*-*)
208 frag=mh-x86pic ;;
209 powerpc*-*-aix*) ;;
210 powerpc*-*-*) frag=mh-ppcpic ;;
211 sparc*-*-*) frag=mh-sparcpic ;;
212 s390*-*-*) frag=mh-s390pic ;;
213 *) frag=mh-${host_cpu}pic ;;
214 esac
215 if [[ -n "${frag}" ]]; then
216 frags="${frags} ${libiberty_topdir}/config/${frag}"
217 fi
218fi
219
220echo "# Warning: this fragment is automatically generated" > temp-frag
221
222for frag in ${frags}; do
223 if [[ -f ${frag} ]]; then
224 echo "Appending ${frag} to xhost-mkfrag"
225 echo "# Following fragment copied from ${frag}" >> temp-frag
226 cat ${frag} >> temp-frag
227 fi
228done
229
230# record if we want to build shared libs.
231if [[ "${shared}" = "yes" ]]; then
232 echo enable_shared = yes >> temp-frag
233else
234 echo enable_shared = no >> temp-frag
235fi
236
237frag=xhost-mkfrag
238${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
239
6599da04 240host_makefile_frag=${frag}
3affd5f0
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241AC_SUBST_FILE(host_makefile_frag)
242
243# It's OK to check for header files. Although the compiler may not be
244# able to link anything, it had better be able to at least compile
245# something.
78a7dc90 246AC_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)
a6458d1d 247AC_HEADER_SYS_WAIT
c6451ce1 248AC_HEADER_TIME
6599da04 249
3b58c099
MS
250libiberty_AC_DECLARE_ERRNO
251
d49d0907
BE
252# Determine the size of an int for struct fibnode.
253AC_CHECK_SIZEOF([int])
254
fdfc290b 255AC_CHECK_TYPE(uintptr_t, unsigned long)
9bf3c9cc
RH
256
257# Look for a 64-bit type.
258AC_MSG_CHECKING([for a 64-bit type])
259AC_CACHE_VAL(liberty_cv_uint64,
260[AC_TRY_COMPILE(
261[#ifdef HAVE_STDINT_H
262#include <stdint.h>
263#endif],
264[extern uint64_t foo;],
265liberty_cv_uint64=uint64_t,
266[AC_TRY_COMPILE(
267[#ifdef HAVE_LIMITS_H
268#include <limits.h>
269#endif
270#ifndef CHAR_BIT
271#define CHAR_BIT 8
272#endif],
273[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
274liberty_cv_uint64="unsigned long",
275[AC_TRY_COMPILE(
276[#ifdef HAVE_LIMITS_H
277#include <limits.h>
278#endif
279#ifndef CHAR_BIT
280#define CHAR_BIT 8
281#endif],
282[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
283liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
284AC_MSG_RESULT($liberty_cv_uint64)
285if test "$liberty_cv_uint64" != none; then
6489430a
MR
286 AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
287 [Define to an unsigned 64-bit type available in the compiler.])
9bf3c9cc
RH
288fi
289
39e8d049
KG
290# Given the above check, we always have uintptr_t or a fallback
291# definition. So define HAVE_UINTPTR_T in case any imported code
292# relies on it.
293AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
d3982b71 294
deae2ed9
MM
295AC_TYPE_PID_T
296
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297# This is the list of functions which libiberty will provide if they
298# are not available on the host.
299
300funcs="asprintf"
301funcs="$funcs atexit"
302funcs="$funcs basename"
303funcs="$funcs bcmp"
304funcs="$funcs bcopy"
dac45916 305funcs="$funcs bsearch"
3affd5f0 306funcs="$funcs bzero"
a9acf741 307funcs="$funcs calloc"
3affd5f0 308funcs="$funcs clock"
29650b2b 309funcs="$funcs ffs"
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310funcs="$funcs getcwd"
311funcs="$funcs getpagesize"
17049f0b 312funcs="$funcs gettimeofday"
3affd5f0
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313funcs="$funcs index"
314funcs="$funcs insque"
315funcs="$funcs memchr"
316funcs="$funcs memcmp"
317funcs="$funcs memcpy"
318funcs="$funcs memmove"
029bcc09 319funcs="$funcs mempcpy"
3affd5f0 320funcs="$funcs memset"
687361c8 321funcs="$funcs mkstemps"
9eb4080f 322funcs="$funcs putenv"
3affd5f0
JL
323funcs="$funcs random"
324funcs="$funcs rename"
325funcs="$funcs rindex"
9eb4080f 326funcs="$funcs setenv"
bd3fbc6b 327funcs="$funcs snprintf"
3affd5f0 328funcs="$funcs sigsetmask"
029bcc09
KG
329funcs="$funcs stpcpy"
330funcs="$funcs stpncpy"
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331funcs="$funcs strcasecmp"
332funcs="$funcs strchr"
333funcs="$funcs strdup"
334funcs="$funcs strncasecmp"
17998b22 335funcs="$funcs strndup"
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336funcs="$funcs strrchr"
337funcs="$funcs strstr"
338funcs="$funcs strtod"
339funcs="$funcs strtol"
340funcs="$funcs strtoul"
83fbfe42 341funcs="$funcs strverscmp"
3affd5f0
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342funcs="$funcs tmpnam"
343funcs="$funcs vasprintf"
344funcs="$funcs vfprintf"
345funcs="$funcs vprintf"
bd3fbc6b 346funcs="$funcs vsnprintf"
3affd5f0
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347funcs="$funcs vsprintf"
348funcs="$funcs waitpid"
349
350# Also in the old function.def file: alloca, vfork, getopt.
351
aa9dc53d 352vars="sys_errlist sys_nerr sys_siglist"
3affd5f0 353
90e72e20 354checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
64c7e556 355checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
78a7dc90 356checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
3affd5f0
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357
358# These are neither executed nor required, but they help keep
359# autoheader happy without adding a bunch of text to acconfig.h.
360if test "x" = "y"; then
05c30f22 361 AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
17049f0b 362 getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
05c30f22 363 memmove mempcpy memset putenv random rename rindex sigsetmask \
17998b22 364 strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
83fbfe42 365 strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
05c30f22
KG
366 vsprintf waitpid getrusage on_exit psignal strerror strsignal \
367 sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
a584cf65 368 pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
78a7dc90 369 realpath canonicalize_file_name __fsetlocking)
ddcf783b 370 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
d1209685
ZW
371 AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
372 AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.])
373 AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
6599da04
JM
374fi
375
3affd5f0
JL
376# For each of these functions, if the host does not provide the
377# function we want to put FN.o in LIBOBJS, and if the host does
b548dffb 378# provide the function, we want to define HAVE_FN in config.h.
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379
380setobjs=
7c72138a 381CHECK=
48d7db63 382target_header_dir=
3affd5f0
JL
383if test -n "${with_target_subdir}"; then
384
ca6b370d 385 # We are being configured as a target library. AC_REPLACE_FUNCS
3affd5f0 386 # may not work correctly, because the compiler may not be able to
ca6b370d
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387 # link executables. Note that we may still be being configured
388 # native.
3affd5f0
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389
390 # If we are being configured for newlib, we know which functions
391 # newlib provide and which ones we will be expected to provide.
392
393 if test "x${with_newlib}" = "xyes"; then
238235ef
DJ
394 AC_LIBOBJ([asprintf])
395 AC_LIBOBJ([basename])
396 AC_LIBOBJ([insque])
397 AC_LIBOBJ([random])
398 AC_LIBOBJ([strdup])
399 AC_LIBOBJ([vasprintf])
3affd5f0
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400
401 for f in $funcs; do
402 case "$f" in
ca6b370d 403 asprintf | basename | insque | random | strdup | vasprintf)
3affd5f0
JL
404 ;;
405 *)
406 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
407 AC_DEFINE_UNQUOTED($n)
408 ;;
409 esac
410 done
411
412 # newlib doesnt provide any of the variables in $vars, so we
413 # dont have to check them here.
414
ca6b370d 415 # Of the functions in $checkfuncs, newlib only has strerror.
c1300f45 416 AC_DEFINE(HAVE_STRERROR)
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417
418 setobjs=yes
419
420 fi
7c72138a 421
48d7db63
PE
422 # We may wish to install the target headers somewhere.
423 AC_ARG_ENABLE(install-libiberty,
424 [ --enable-install-libiberty Install headers for end users],
425 enable_install_libiberty=$enableval,
426 enable_install_libiberty=no)dnl
427
428 # Option parsed, now set things appropriately.
429 case x"$enable_install_libiberty" in
430 xyes|x)
431 target_header_dir=libiberty
432 ;;
433 xno)
434 target_header_dir=
435 ;;
436 *)
437 # This could be sanity-checked in various ways...
438 target_header_dir="${enable_install_libiberty}"
439 ;;
440 esac
441
442
7c72138a
TT
443else
444
445 # Not a target library, so we set things up to run the test suite.
a584cf65 446 CHECK=really-check
7c72138a 447
3affd5f0
JL
448fi
449
7c72138a 450AC_SUBST(CHECK)
48d7db63 451AC_SUBST(target_header_dir)
7c72138a 452
b1c45ae4 453case "${host}" in
46af757b 454 *-*-cygwin* | *-*-mingw*)
c1300f45
KC
455 AC_DEFINE(HAVE_SYS_ERRLIST)
456 AC_DEFINE(HAVE_SYS_NERR)
b1c45ae4
CF
457 ;;
458esac
459
3affd5f0
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460if test -z "${setobjs}"; then
461 case "${host}" in
462
463 *-*-vxworks*)
464 # Handle VxWorks configuration specially, since on VxWorks the
465 # libraries are actually on the target board, not in the file
466 # system.
238235ef
DJ
467 AC_LIBOBJ([basename])
468 AC_LIBOBJ([getpagesize])
469 AC_LIBOBJ([insque])
470 AC_LIBOBJ([random])
471 AC_LIBOBJ([strcasecmp])
472 AC_LIBOBJ([strncasecmp])
473 AC_LIBOBJ([strdup])
474 AC_LIBOBJ([vfork])
475 AC_LIBOBJ([waitpid])
476 AC_LIBOBJ([vasprintf])
3affd5f0
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477 for f in $funcs; do
478 case "$f" in
479 basename | getpagesize | insque | random | strcasecmp)
480 ;;
481 strncasecmp | strdup | vfork | waitpid | vasprintf)
482 ;;
483 *)
484 n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
485 AC_DEFINE_UNQUOTED($n)
486 ;;
487 esac
488 done
489
490 # VxWorks doesn't provide any of the variables in $vars, so we
491 # don't have to check them here.
492
493 # Of the functions in $checkfuncs, VxWorks only has strerror.
c1300f45 494 AC_DEFINE(HAVE_STRERROR)
3affd5f0
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495
496 setobjs=yes
497 ;;
498
499 esac
500fi
501
502if test -z "${setobjs}"; then
503
504 case "${host}" in
505
dd8f3ed5
GN
506 *-*-cygwin*)
507 # The Cygwin library actually uses a couple of files from
3affd5f0 508 # libiberty when it is built. If we are building a native
dd8f3ed5 509 # Cygwin, and we run the tests, we will appear to have these
3affd5f0
JL
510 # files. However, when we go on to build winsup, we will wind up
511 # with a library which does not have the files, since they should
512 # have come from libiberty.
513
514 # We handle this by removing the functions the winsup library
515 # provides from our shell variables, so that they appear to be
516 # missing.
517
2f31ed7e
DD
518 # DJ - only if we're *building* cygwin, not just building *with* cygwin
519
520 if test -n "${with_target_subdir}"
521 then
522 funcs="`echo $funcs | sed -e 's/random//'`"
238235ef 523 AC_LIBOBJ([random])
2f31ed7e
DD
524 vars="`echo $vars | sed -e 's/sys_siglist//'`"
525 checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
526 fi
3affd5f0
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527 ;;
528
529 *-*-mingw32*)
530 # Under mingw32, sys_nerr and sys_errlist exist, but they are
531 # macros, so the test below won't find them.
d1209685
ZW
532 libiberty_cv_var_sys_nerr=yes
533 libiberty_cv_var_sys_errlist=yes
3affd5f0
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534 ;;
535
b3df8be1 536 *-*-msdosdjgpp*)
fe8ee922
DD
537 # vfork and fork are stubs.
538 ac_cv_func_vfork_works=no
539 ;;
540
89f602a7
MK
541 *-*-uwin*)
542 # Under some versions of uwin, vfork is notoriously buggy and the test
543 # can hang configure; on other versions, vfork exists just as a stub.
544 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
545 ac_cv_func_vfork_works=no
62133b5e
MK
546 # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
547 # macros (actually, these are imported from a DLL, but the end effect
548 # is the same), so the test below won't find them.
d1209685
ZW
549 libiberty_cv_var_sys_nerr=yes
550 libiberty_cv_var_sys_errlist=yes
89f602a7
MK
551 ;;
552
ee262b6f
DR
553 *-*-*vms*)
554 # Under VMS, vfork works very different than on Unix. The standard test
555 # won't work, and it isn't easily adaptable. It makes more sense to
556 # just force it.
557 ac_cv_func_vfork_works=yes
558 ;;
559
3affd5f0
JL
560 esac
561
562 # We haven't set the list of objects yet. Use the standard autoconf
563 # tests. This will only work if the compiler works.
238235ef 564 AC_ISC_POSIX
3affd5f0 565 AC_REPLACE_FUNCS($funcs)
b548dffb 566 libiberty_AC_FUNC_C_ALLOCA
a4f74b58 567 AC_FUNC_FORK
3affd5f0 568 if test $ac_cv_func_vfork_works = no; then
238235ef 569 AC_LIBOBJ([vfork])
3affd5f0 570 fi
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571 # We only need _doprnt if we might use it to implement v*printf.
572 if test $ac_cv_func_vprintf != yes \
573 || test $ac_cv_func_vfprintf != yes \
574 || test $ac_cv_func_vsprintf != yes; then
575 AC_REPLACE_FUNCS(_doprnt)
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576 else
577 AC_CHECK_FUNCS(_doprnt)
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578 fi
579
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580 for v in $vars; do
581 AC_MSG_CHECKING([for $v])
582 AC_CACHE_VAL(libiberty_cv_var_$v,
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583 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
584 [eval "libiberty_cv_var_$v=yes"],
585 [eval "libiberty_cv_var_$v=no"])])
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586 if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
587 AC_MSG_RESULT(yes)
588 n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
589 AC_DEFINE_UNQUOTED($n)
6599da04 590 else
3affd5f0 591 AC_MSG_RESULT(no)
6599da04 592 fi
3affd5f0 593 done
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594
595 # special check for _system_configuration because AIX <4.3.2 do not
596 # contain the `physmem' member.
597 AC_MSG_CHECKING([for external symbol _system_configuration])
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598 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/systemcfg.h>]],
599 [[double x = _system_configuration.physmem;]])],
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600 [AC_MSG_RESULT([yes])
601 AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
a4f74b58 602 [Define if you have the _system_configuration variable.])],
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603 [AC_MSG_RESULT([no])])
604
3affd5f0 605 AC_CHECK_FUNCS($checkfuncs)
ddcf783b 606 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
8b82b724 607 AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
83fbfe42 608 AC_CHECK_DECLS([strverscmp])
4876b2b4 609 libiberty_NEED_DECLARATION(canonicalize_file_name)
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610fi
611
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612# Figure out which version of pexecute to use.
613case "${host}" in
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614 *-*-mingw* | *-*-winnt*) pexecute=./pex-win32.o ;;
615 *-*-msdosdjgpp*) pexecute=./pex-djgpp.o ;;
616 *-*-msdos*) pexecute=./pex-msdos.o ;;
24f2cabb 617 *) pexecute=./pex-unix.o ;;
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618esac
619AC_SUBST(pexecute)
620
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621libiberty_AC_FUNC_STRNCMP
622
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623# Install a library built with a cross compiler in $(tooldir) rather
624# than $(libdir).
ca6b370d 625if test -z "${with_cross_host}"; then
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626 INSTALL_DEST=libdir
627else
628 INSTALL_DEST=tooldir
6599da04 629fi
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630AC_SUBST(INSTALL_DEST)
631
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632m4_pattern_allow(LIBOBJS)
633L=""
634for l in x $LIBOBJS; do
635 case $l in
636 x) ;;
637 *) L="$L ./$l" ;;
638 esac
639done
640LIBOBJS="$L"
641
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642dnl Required by html and install-html
643AC_SUBST(datarootdir)
644AC_SUBST(docdir)
645AC_SUBST(htmldir)
646
3affd5f0 647# We need multilib support, but only if configuring for the target.
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648AC_CONFIG_FILES([Makefile testsuite/Makefile])
649AC_CONFIG_COMMANDS([default],
650 [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
3affd5f0 651if test -n "$CONFIG_FILES"; then
27cfe310 652 if test -n "${with_target_subdir}"; then
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653 # FIXME: We shouldn't need to set ac_file
654 ac_file=Makefile
6706f116 655 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
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656 . ${libiberty_topdir}/config-ml.in
657 fi
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658fi]],
659[[srcdir=${srcdir}
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660host=${host}
661target=${target}
662with_target_subdir=${with_target_subdir}
663with_multisubdir=${with_multisubdir}
664ac_configure_args="--enable-multilib ${ac_configure_args}"
665CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
3343fdd2 666ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
3affd5f0 667libiberty_topdir=${libiberty_topdir}
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668]])
669AC_OUTPUT