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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [libiberty/] [configure.ac] - Blame information for rev 303

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Line No. Rev Author Line
1 21 khays
dnl Process this file with autoconf to produce a configure script
2
 
3
AC_PREREQ(2.64)
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
 
194 161 khays
GCC_PICFLAG
195
 
196 21 khays
# If they didn't specify --enable-shared, don't generate shared libs.
197
case "${enable_shared}" in
198
  yes) shared=yes ;;
199
  no) shared=no ;;
200
  "") shared=no ;;
201
  *) shared=yes ;;
202
esac
203 161 khays
if [[ "${shared}" != "yes" ]]; then
204
  PICFLAG=
205 21 khays
fi
206
AC_SUBST(PICFLAG)
207
 
208
echo "# Warning: this fragment is automatically generated" > temp-frag
209
 
210
if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
211
  echo "Appending ${frag} to xhost-mkfrag"
212
  echo "# Following fragment copied from ${frag}" >> temp-frag
213
  cat ${frag} >> temp-frag
214
fi
215
 
216
# record if we want to build shared libs.
217
if [[ "${shared}" = "yes" ]]; then
218
  echo enable_shared = yes >> temp-frag
219
else
220
  echo enable_shared = no >> temp-frag
221
fi
222
 
223
frag=xhost-mkfrag
224
${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
225
 
226
host_makefile_frag=${frag}
227
AC_SUBST_FILE(host_makefile_frag)
228
 
229
# It's OK to check for header files.  Although the compiler may not be
230
# able to link anything, it had better be able to at least compile
231
# something.
232
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 process.h sys/prctl.h)
233
AC_HEADER_SYS_WAIT
234
AC_HEADER_TIME
235
 
236
libiberty_AC_DECLARE_ERRNO
237
 
238
# Determine the size of an int for struct fibnode.
239
AC_CHECK_SIZEOF([int])
240
 
241
# Look for a 64-bit type.
242
AC_MSG_CHECKING([for a 64-bit type])
243
AC_CACHE_VAL(liberty_cv_uint64,
244
[AC_TRY_COMPILE(
245
[#ifdef HAVE_STDINT_H
246
#include 
247
#endif],
248
[extern uint64_t foo;],
249
liberty_cv_uint64=uint64_t,
250
[AC_TRY_COMPILE(
251
[#ifdef HAVE_LIMITS_H
252
#include 
253
#endif
254
#ifndef CHAR_BIT
255
#define CHAR_BIT 8
256
#endif],
257
[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
258
liberty_cv_uint64="unsigned long",
259
[AC_TRY_COMPILE(
260
[#ifdef HAVE_LIMITS_H
261
#include 
262
#endif
263
#ifndef CHAR_BIT
264
#define CHAR_BIT 8
265
#endif],
266
[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
267
liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
268
AC_MSG_RESULT($liberty_cv_uint64)
269
if test "$liberty_cv_uint64" != none; then
270
  AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
271
                     [Define to an unsigned 64-bit type available in the compiler.])
272
fi
273
 
274
AC_TYPE_INTPTR_T
275
AC_TYPE_UINTPTR_T
276
AC_TYPE_SSIZE_T
277
 
278
# Given the above check, we always have uintptr_t or a fallback
279
# definition.  So define HAVE_UINTPTR_T in case any imported code
280
# relies on it.
281
AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
282
 
283
AC_TYPE_PID_T
284
 
285
# This is the list of functions which libiberty will provide if they
286
# are not available on the host.
287
 
288
funcs="asprintf"
289
funcs="$funcs atexit"
290
funcs="$funcs basename"
291
funcs="$funcs bcmp"
292
funcs="$funcs bcopy"
293
funcs="$funcs bsearch"
294
funcs="$funcs bzero"
295
funcs="$funcs calloc"
296
funcs="$funcs clock"
297
funcs="$funcs ffs"
298
funcs="$funcs getcwd"
299
funcs="$funcs getpagesize"
300
funcs="$funcs gettimeofday"
301
funcs="$funcs index"
302
funcs="$funcs insque"
303
funcs="$funcs memchr"
304
funcs="$funcs memcmp"
305
funcs="$funcs memcpy"
306
funcs="$funcs memmem"
307
funcs="$funcs memmove"
308
funcs="$funcs mempcpy"
309
funcs="$funcs memset"
310
funcs="$funcs mkstemps"
311
funcs="$funcs putenv"
312
funcs="$funcs random"
313
funcs="$funcs rename"
314
funcs="$funcs rindex"
315
funcs="$funcs setenv"
316
funcs="$funcs snprintf"
317
funcs="$funcs sigsetmask"
318
funcs="$funcs stpcpy"
319
funcs="$funcs stpncpy"
320
funcs="$funcs strcasecmp"
321
funcs="$funcs strchr"
322
funcs="$funcs strdup"
323
funcs="$funcs strncasecmp"
324
funcs="$funcs strndup"
325
funcs="$funcs strrchr"
326
funcs="$funcs strstr"
327
funcs="$funcs strtod"
328
funcs="$funcs strtol"
329
funcs="$funcs strtoul"
330
funcs="$funcs strverscmp"
331
funcs="$funcs tmpnam"
332
funcs="$funcs vasprintf"
333
funcs="$funcs vfprintf"
334
funcs="$funcs vprintf"
335
funcs="$funcs vsnprintf"
336
funcs="$funcs vsprintf"
337
funcs="$funcs waitpid"
338
funcs="$funcs setproctitle"
339
 
340
# Also in the old function.def file: alloca, vfork, getopt.
341
 
342
vars="sys_errlist sys_nerr sys_siglist"
343
 
344 161 khays
checkfuncs="__fsetlocking canonicalize_file_name dup3 getrlimit getrusage \
345
 getsysinfo gettimeofday on_exit psignal pstat_getdynamic pstat_getstatic \
346
 realpath setrlimit sbrk spawnve spawnvpe strerror strsignal sysconf sysctl \
347
 sysmp table times wait3 wait4"
348 21 khays
 
349
# These are neither executed nor required, but they help keep
350
# autoheader happy without adding a bunch of text to acconfig.h.
351
if test "x" = "y"; then
352
  AC_CHECK_FUNCS(asprintf atexit \
353
    basename bcmp bcopy bsearch bzero \
354
    calloc canonicalize_file_name clock \
355
    dup3 \
356
    ffs __fsetlocking \
357 161 khays
    getcwd getpagesize getrlimit getrusage getsysinfo gettimeofday \
358 21 khays
    index insque \
359
    memchr memcmp memcpy memmem memmove memset mkstemps \
360
    on_exit \
361
    psignal pstat_getdynamic pstat_getstatic putenv \
362
    random realpath rename rindex \
363 161 khays
    sbrk setenv setproctitle setrlimit sigsetmask snprintf spawnve spawnvpe \
364 21 khays
     stpcpy stpncpy strcasecmp strchr strdup \
365
     strerror strncasecmp strndup strrchr strsignal strstr strtod strtol \
366
     strtoul strverscmp sysconf sysctl sysmp \
367
    table times tmpnam \
368
    vasprintf vfprintf vprintf vsprintf \
369
    wait3 wait4 waitpid)
370
  AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
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.])
374
fi
375
 
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
378
# provide the function, we want to define HAVE_FN in config.h.
379
 
380
setobjs=
381
CHECK=
382
target_header_dir=
383
if test -n "${with_target_subdir}"; then
384
 
385
  # We are being configured as a target library.  AC_REPLACE_FUNCS
386
  # may not work correctly, because the compiler may not be able to
387
  # link executables.  Note that we may still be being configured
388
  # native.
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
394
    AC_LIBOBJ([asprintf])
395
    AC_LIBOBJ([basename])
396
    AC_LIBOBJ([insque])
397
    AC_LIBOBJ([random])
398
    AC_LIBOBJ([strdup])
399
    AC_LIBOBJ([vasprintf])
400
 
401
    for f in $funcs; do
402
      case "$f" in
403
        asprintf | basename | insque | random | strdup | vasprintf)
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
 
415
    # Of the functions in $checkfuncs, newlib only has strerror.
416
    AC_DEFINE(HAVE_STRERROR)
417
 
418
    setobjs=yes
419
 
420
  fi
421
 
422
  # If we are being configured for Mingw, we know which functions
423
  # Mingw provides and which ones we will be expected to provide.
424
 
425
  case "${host}" in
426
  *-*-mingw*)
427
    AC_LIBOBJ([asprintf])
428
    AC_LIBOBJ([basename])
429
    AC_LIBOBJ([bcmp])
430
    AC_LIBOBJ([bcopy])
431
    AC_LIBOBJ([bzero])
432
    AC_LIBOBJ([clock])
433
    AC_LIBOBJ([ffs])
434
    AC_LIBOBJ([getpagesize])
435
    AC_LIBOBJ([index])
436
    AC_LIBOBJ([insque])
437
    AC_LIBOBJ([mempcpy])
438
    AC_LIBOBJ([mkstemps])
439
    AC_LIBOBJ([random])
440
    AC_LIBOBJ([rindex])
441
    AC_LIBOBJ([sigsetmask])
442
    AC_LIBOBJ([stpcpy])
443
    AC_LIBOBJ([stpncpy])
444
    AC_LIBOBJ([strndup])
445
    AC_LIBOBJ([strverscmp])
446
    AC_LIBOBJ([vasprintf])
447
    AC_LIBOBJ([waitpid])
448
 
449
    for f in $funcs; do
450
      case "$f" in
451
        asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid)
452
          ;;
453
        *)
454
          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
455
          AC_DEFINE_UNQUOTED($n)
456
          ;;
457
      esac
458
    done
459
 
460
    # Mingw doesnt provide any of the variables in $vars, so we
461
    # dont have to check them here.
462
 
463
    # Of the functions in $checkfuncs, Mingw only has strerror.
464
    AC_DEFINE(HAVE_STRERROR)
465
 
466
    setobjs=yes
467
    ;;
468
 
469
  *-*-msdosdjgpp)
470
    AC_LIBOBJ([vasprintf])
471
    AC_LIBOBJ([vsnprintf])
472
    AC_LIBOBJ([snprintf])
473
    AC_LIBOBJ([asprintf])
474
 
475
    for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
476
             getcwd getpagesize getrusage gettimeofday \
477
             index insque memchr memcmp memcpy memmove memset psignal \
478
             putenv random rename rindex sbrk setenv stpcpy strcasecmp \
479
             strchr strdup strerror strncasecmp strrchr strstr strtod \
480
             strtol strtoul sysconf times tmpnam vfprintf vprintf \
481
             vsprintf waitpid
482
    do
483
      n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
484
      AC_DEFINE_UNQUOTED($n)
485
    done
486
 
487
 
488
    setobjs=yes
489
    ;;
490
 
491
  esac
492
 
493
  # We may wish to install the target headers somewhere.
494
  AC_ARG_ENABLE(install-libiberty,
495
  [  --enable-install-libiberty       Install headers for end users],
496
  enable_install_libiberty=$enableval,
497
  enable_install_libiberty=no)dnl
498
 
499
  # Option parsed, now set things appropriately.
500
  case x"$enable_install_libiberty" in
501
    xyes|x)
502
      target_header_dir=libiberty
503
      ;;
504
    xno)
505
      target_header_dir=
506
      ;;
507
    *)
508
      # This could be sanity-checked in various ways...
509
      target_header_dir="${enable_install_libiberty}"
510
      ;;
511
  esac
512
 
513
 
514
else
515
 
516
   # Not a target library, so we set things up to run the test suite.
517
   CHECK=really-check
518
 
519
fi
520
 
521
AC_SUBST(CHECK)
522
AC_SUBST(target_header_dir)
523
 
524
case "${host}" in
525
  *-*-cygwin* | *-*-mingw*)
526
    AC_DEFINE(HAVE_SYS_ERRLIST)
527
    AC_DEFINE(HAVE_SYS_NERR)
528
    ;;
529
esac
530
 
531
if test -z "${setobjs}"; then
532
  case "${host}" in
533
 
534
  *-*-vxworks*)
535
    # Handle VxWorks configuration specially, since on VxWorks the
536
    # libraries are actually on the target board, not in the file
537
    # system.
538
    AC_LIBOBJ([basename])
539
    AC_LIBOBJ([getpagesize])
540
    AC_LIBOBJ([insque])
541
    AC_LIBOBJ([random])
542
    AC_LIBOBJ([strcasecmp])
543
    AC_LIBOBJ([strncasecmp])
544
    AC_LIBOBJ([strdup])
545
    AC_LIBOBJ([vfork])
546
    AC_LIBOBJ([waitpid])
547
    AC_LIBOBJ([vasprintf])
548
    for f in $funcs; do
549
      case "$f" in
550
        basename | getpagesize | insque | random | strcasecmp)
551
          ;;
552
        strncasecmp | strdup | vfork | waitpid | vasprintf)
553
          ;;
554
        *)
555
          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
556
          AC_DEFINE_UNQUOTED($n)
557
          ;;
558
      esac
559
    done
560
 
561
    # VxWorks doesn't provide any of the variables in $vars, so we
562
    # don't have to check them here.
563
 
564
    # Of the functions in $checkfuncs, VxWorks only has strerror.
565
    AC_DEFINE(HAVE_STRERROR)
566
 
567
    setobjs=yes
568
    ;;
569
 
570
  esac
571
fi
572
 
573
if test -z "${setobjs}"; then
574
 
575
  case "${host}" in
576
 
577
  *-*-mingw32*)
578
    # Under mingw32, sys_nerr and sys_errlist exist, but they are
579
    # macros, so the test below won't find them.
580
    libiberty_cv_var_sys_nerr=yes
581
    libiberty_cv_var_sys_errlist=yes
582
    ;;
583
 
584
  *-*-msdosdjgpp*)
585
    # vfork and fork are stubs.
586
    ac_cv_func_vfork_works=no
587
    ;;
588
 
589
  *-*-uwin*)
590
    # Under some versions of uwin, vfork is notoriously buggy and the test
591
    # can hang configure; on other versions, vfork exists just as a stub.
592
    # FIXME: This should be removed once vfork in uwin's runtime is fixed.
593
    ac_cv_func_vfork_works=no
594
    # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
595
    # macros (actually, these are imported from a DLL, but the end effect
596
    # is the same), so the test below won't find them.
597
    libiberty_cv_var_sys_nerr=yes
598
    libiberty_cv_var_sys_errlist=yes
599
    ;;
600
 
601
  *-*-*vms*)
602
    # Under VMS, vfork works very different than on Unix. The standard test
603
    # won't work, and it isn't easily adaptable. It makes more sense to
604
    # just force it.
605
    ac_cv_func_vfork_works=yes
606
    ;;
607
 
608
  esac
609
 
610
  # We haven't set the list of objects yet.  Use the standard autoconf
611
  # tests.  This will only work if the compiler works.
612
  AC_ISC_POSIX
613
  AC_REPLACE_FUNCS($funcs)
614
  libiberty_AC_FUNC_C_ALLOCA
615
  AC_FUNC_FORK
616
  if test $ac_cv_func_vfork_works = no; then
617
    AC_LIBOBJ([vfork])
618
  fi
619
  # We only need _doprnt if we might use it to implement v*printf.
620
  if test $ac_cv_func_vprintf != yes \
621
     || test $ac_cv_func_vfprintf != yes \
622
     || test $ac_cv_func_vsprintf != yes; then
623
    AC_REPLACE_FUNCS(_doprnt)
624
  else
625
    AC_CHECK_FUNCS(_doprnt)
626
  fi
627
 
628
  for v in $vars; do
629
    AC_MSG_CHECKING([for $v])
630
    AC_CACHE_VAL(libiberty_cv_var_$v,
631
      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
632
                      [eval "libiberty_cv_var_$v=yes"],
633
                      [eval "libiberty_cv_var_$v=no"])])
634
    if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
635
      AC_MSG_RESULT(yes)
636
      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
637
      AC_DEFINE_UNQUOTED($n)
638
    else
639
      AC_MSG_RESULT(no)
640
    fi
641
  done
642
 
643
  # special check for _system_configuration because AIX <4.3.2 do not
644
  # contain the `physmem' member.
645
  AC_MSG_CHECKING([for external symbol _system_configuration])
646
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]],
647
                        [[double x = _system_configuration.physmem;]])],
648
    [AC_MSG_RESULT([yes])
649
    AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
650
              [Define if you have the _system_configuration variable.])],
651
    [AC_MSG_RESULT([no])])
652
 
653
  AC_CHECK_FUNCS($checkfuncs)
654
  AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
655
  AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
656
  AC_CHECK_DECLS([strverscmp])
657
  libiberty_NEED_DECLARATION(canonicalize_file_name)
658
fi
659
 
660
# Figure out which version of pexecute to use.
661
case "${host}" in
662
     *-*-mingw* | *-*-winnt*)   pexecute=pex-win32  ;;
663
     *-*-msdosdjgpp*)           pexecute=pex-djgpp  ;;
664
     *-*-msdos*)                pexecute=pex-msdos  ;;
665
     *)                         pexecute=pex-unix   ;;
666
esac
667
AC_SUBST(pexecute)
668
 
669
libiberty_AC_FUNC_STRNCMP
670
 
671
# Install a library built with a cross compiler in $(tooldir) rather
672
# than $(libdir).
673
if test -z "${with_cross_host}"; then
674
  INSTALL_DEST=libdir
675
else
676
  INSTALL_DEST=tooldir
677
fi
678
AC_SUBST(INSTALL_DEST)
679
 
680
m4_pattern_allow(LIBOBJS)
681
L=""
682
for l in x $LIBOBJS; do
683
  case $l in
684
    x) ;;
685
    *) L="$L ./$l" ;;
686
  esac
687
done
688
LIBOBJS="$L"
689
 
690
dnl Required by html and install-html
691
AC_SUBST(datarootdir)
692
AC_SUBST(docdir)
693
AC_SUBST(htmldir)
694
 
695
# We need multilib support, but only if configuring for the target.
696
AC_CONFIG_FILES([Makefile testsuite/Makefile])
697
AC_CONFIG_COMMANDS([default],
698
  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
699
if test -n "$CONFIG_FILES"; then
700
  if test -n "${with_target_subdir}"; then
701
    # FIXME: We shouldn't need to set ac_file
702
    ac_file=Makefile
703
    LD="${ORIGINAL_LD_FOR_MULTILIBS}"
704
    . ${libiberty_topdir}/config-ml.in
705
  fi
706
fi]],
707
[[srcdir=${srcdir}
708
host=${host}
709
target=${target}
710
with_target_subdir=${with_target_subdir}
711
with_multisubdir=${with_multisubdir}
712
ac_configure_args="--enable-multilib ${ac_configure_args}"
713
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
714
ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
715
libiberty_topdir=${libiberty_topdir}
716
]])
717
AC_OUTPUT

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