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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [libiberty/] [configure.ac] - Blame information for rev 816

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Line No. Rev Author Line
1 38 julius
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_PROG_CPP_WERROR
134
 
135
ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wc++-compat \
136
                          -Wstrict-prototypes], [ac_libiberty_warn_cflags])
137
ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([], [ac_libiberty_warn_cflags])
138
 
139
AC_PROG_CC_C_O
140
# autoconf is lame and doesn't give us any substitution variable for this.
141
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
142
  NO_MINUS_C_MINUS_O=yes
143
else
144
  OUTPUT_OPTION='-o $@'
145
fi
146
AC_SUBST(NO_MINUS_C_MINUS_O)
147
AC_SUBST(OUTPUT_OPTION)
148
 
149
AC_C_CONST
150
AC_C_INLINE
151
AC_C_BIGENDIAN
152
 
153
dnl When we start using libtool:
154
dnl Default to a non shared library.  This may be overridden by the
155
dnl configure option --enable-shared.
156
dnl AM_DISABLE_SHARED
157
 
158
dnl When we start using libtool:
159
dnl AM_PROG_LIBTOOL
160
 
161
dnl When we start using automake:
162
dnl AM_CONFIG_HEADER(config.h:config.in)
163
AC_CONFIG_HEADER(config.h:config.in)
164
 
165
dnl When we start using automake:
166
dnl AM_MAINTAINER_MODE
167
dnl AC_EXEEXT
168
 
169
dnl When we start using automake:
170
dnl AM_PROG_INSTALL
171
AC_PROG_INSTALL
172
 
173
# Don't build the shared library for build.
174
if [[ -n "${with_build_subdir}" ]]; then
175
  enable_shared=no
176
fi
177
 
178
frag=
179
case "${host}" in
180
  rs6000-ibm-aix3.1 | rs6000-ibm-aix)
181
                        frag=mh-aix ;;
182
  *-*-cxux7*)           frag=mh-cxux7 ;;
183
  *-*-freebsd2.1.*)     frag=mh-fbsd21 ;;
184
  *-*-freebsd2.2.[[012]])       frag=mh-fbsd21 ;;
185
  i370-*-opened*)       frag=mh-openedition ;;
186
  i[[34567]]86-*-windows*)      frag=mh-windows ;;
187
esac
188
 
189
if [[ -n "${frag}" ]]; then
190
  frag=${libiberty_topdir}/libiberty/config/$frag
191
fi
192
 
193
# If they didn't specify --enable-shared, don't generate shared libs.
194
case "${enable_shared}" in
195
  yes) shared=yes ;;
196
  no) shared=no ;;
197
  "") shared=no ;;
198
  *) shared=yes ;;
199
esac
200
if [[ "${shared}" = "yes" ]]; then
201
  case "${host}" in
202
    *-*-cygwin*)        ;;
203
    alpha*-*-linux*)    PICFLAG=-fPIC ;;
204
    arm*-*-*)           PICFLAG=-fPIC ;;
205
    hppa*-*-*)          PICFLAG=-fPIC ;;
206
    i370-*-*)           PICFLAG=-fPIC ;;
207
    ia64-*-*)           PICFLAG=-fpic ;;
208
    i[[34567]]86-*-* | x86_64-*-*)
209
                        PICFLAG=-fpic ;;
210
    m68k-*-*)           PICFLAG=-fpic ;;
211
    mips*-*-linux)      PICFLAG=-fPIC ;;
212
    powerpc*-*-aix*)    ;;
213
    powerpc*-*-*)       PICFLAG=-fPIC ;;
214
    sparc*-*-*)         case "${CFLAGS}" in
215
                          *-fpic* ) PICFLAG=-fpic ;;
216
                          * ) PICFLAG=-fPIC ;;
217
                        esac ;;
218
    s390*-*-*)          PICFLAG=-fpic ;;
219
  esac
220
fi
221
AC_SUBST(PICFLAG)
222
 
223
echo "# Warning: this fragment is automatically generated" > temp-frag
224
 
225
if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
226
  echo "Appending ${frag} to xhost-mkfrag"
227
  echo "# Following fragment copied from ${frag}" >> temp-frag
228
  cat ${frag} >> temp-frag
229
fi
230
 
231
# record if we want to build shared libs.
232
if [[ "${shared}" = "yes" ]]; then
233
  echo enable_shared = yes >> temp-frag
234
else
235
  echo enable_shared = no >> temp-frag
236
fi
237
 
238
frag=xhost-mkfrag
239
${CONFIG_SHELL-/bin/sh} ${libiberty_topdir}/move-if-change temp-frag xhost-mkfrag
240
 
241
host_makefile_frag=${frag}
242
AC_SUBST_FILE(host_makefile_frag)
243
 
244
# It's OK to check for header files.  Although the compiler may not be
245
# able to link anything, it had better be able to at least compile
246
# something.
247
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)
248
AC_HEADER_SYS_WAIT
249
AC_HEADER_TIME
250
 
251
libiberty_AC_DECLARE_ERRNO
252
 
253
# Determine the size of an int for struct fibnode.
254
AC_CHECK_SIZEOF([int])
255
 
256
AC_CHECK_TYPE(uintptr_t, unsigned long)
257
 
258
# Look for a 64-bit type.
259
AC_MSG_CHECKING([for a 64-bit type])
260
AC_CACHE_VAL(liberty_cv_uint64,
261
[AC_TRY_COMPILE(
262
[#ifdef HAVE_STDINT_H
263
#include 
264
#endif],
265
[extern uint64_t foo;],
266
liberty_cv_uint64=uint64_t,
267
[AC_TRY_COMPILE(
268
[#ifdef HAVE_LIMITS_H
269
#include 
270
#endif
271
#ifndef CHAR_BIT
272
#define CHAR_BIT 8
273
#endif],
274
[extern char foo[sizeof(long) * CHAR_BIT >= 64 ? 1 : -1];],
275
liberty_cv_uint64="unsigned long",
276
[AC_TRY_COMPILE(
277
[#ifdef HAVE_LIMITS_H
278
#include 
279
#endif
280
#ifndef CHAR_BIT
281
#define CHAR_BIT 8
282
#endif],
283
[extern char foo[sizeof(long long) * CHAR_BIT >= 64 ? 1 : -1];],
284
liberty_cv_uint64="unsigned long long", liberty_cv_uint64=none)])])])
285
AC_MSG_RESULT($liberty_cv_uint64)
286
if test "$liberty_cv_uint64" != none; then
287
  AC_DEFINE_UNQUOTED(UNSIGNED_64BIT_TYPE, $liberty_cv_uint64,
288
                     [Define to an unsigned 64-bit type available in the compiler.])
289
fi
290
 
291
# Given the above check, we always have uintptr_t or a fallback
292
# definition.  So define HAVE_UINTPTR_T in case any imported code
293
# relies on it.
294
AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
295
 
296
AC_TYPE_PID_T
297
 
298
# This is the list of functions which libiberty will provide if they
299
# are not available on the host.
300
 
301
funcs="asprintf"
302
funcs="$funcs atexit"
303
funcs="$funcs basename"
304
funcs="$funcs bcmp"
305
funcs="$funcs bcopy"
306
funcs="$funcs bsearch"
307
funcs="$funcs bzero"
308
funcs="$funcs calloc"
309
funcs="$funcs clock"
310
funcs="$funcs ffs"
311
funcs="$funcs getcwd"
312
funcs="$funcs getpagesize"
313
funcs="$funcs gettimeofday"
314
funcs="$funcs index"
315
funcs="$funcs insque"
316
funcs="$funcs memchr"
317
funcs="$funcs memcmp"
318
funcs="$funcs memcpy"
319
funcs="$funcs memmove"
320
funcs="$funcs mempcpy"
321
funcs="$funcs memset"
322
funcs="$funcs mkstemps"
323
funcs="$funcs putenv"
324
funcs="$funcs random"
325
funcs="$funcs rename"
326
funcs="$funcs rindex"
327
funcs="$funcs setenv"
328
funcs="$funcs snprintf"
329
funcs="$funcs sigsetmask"
330
funcs="$funcs stpcpy"
331
funcs="$funcs stpncpy"
332
funcs="$funcs strcasecmp"
333
funcs="$funcs strchr"
334
funcs="$funcs strdup"
335
funcs="$funcs strncasecmp"
336
funcs="$funcs strndup"
337
funcs="$funcs strrchr"
338
funcs="$funcs strstr"
339
funcs="$funcs strtod"
340
funcs="$funcs strtol"
341
funcs="$funcs strtoul"
342
funcs="$funcs strverscmp"
343
funcs="$funcs tmpnam"
344
funcs="$funcs vasprintf"
345
funcs="$funcs vfprintf"
346
funcs="$funcs vprintf"
347
funcs="$funcs vsnprintf"
348
funcs="$funcs vsprintf"
349
funcs="$funcs waitpid"
350
 
351
# Also in the old function.def file: alloca, vfork, getopt.
352
 
353
vars="sys_errlist sys_nerr sys_siglist"
354
 
355
checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday"
356
checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp"
357
checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking"
358
 
359
# These are neither executed nor required, but they help keep
360
# autoheader happy without adding a bunch of text to acconfig.h.
361
if test "x" = "y"; then
362
  AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \
363
  getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \
364
  memmove mempcpy memset putenv random rename rindex sigsetmask \
365
  strcasecmp setenv stpcpy stpncpy strchr strdup strncasecmp strndup strrchr strstr \
366
  strtod strtol strtoul strverscmp tmpnam vasprintf vfprintf vprintf \
367
  vsprintf waitpid getrusage on_exit psignal strerror strsignal \
368
  sysconf times sbrk gettimeofday ffs snprintf vsnprintf \
369
  pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \
370
  realpath canonicalize_file_name __fsetlocking)
371
  AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
372
  AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
373
  AC_DEFINE(HAVE_SYS_NERR,    1, [Define if you have the sys_nerr variable.])
374
  AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
375
fi
376
 
377
# For each of these functions, if the host does not provide the
378
# function we want to put FN.o in LIBOBJS, and if the host does
379
# provide the function, we want to define HAVE_FN in config.h.
380
 
381
setobjs=
382
CHECK=
383
target_header_dir=
384
if test -n "${with_target_subdir}"; then
385
 
386
  # We are being configured as a target library.  AC_REPLACE_FUNCS
387
  # may not work correctly, because the compiler may not be able to
388
  # link executables.  Note that we may still be being configured
389
  # native.
390
 
391
  # If we are being configured for newlib, we know which functions
392
  # newlib provide and which ones we will be expected to provide.
393
 
394
  if test "x${with_newlib}" = "xyes"; then
395
    AC_LIBOBJ([asprintf])
396
    AC_LIBOBJ([basename])
397
    AC_LIBOBJ([insque])
398
    AC_LIBOBJ([random])
399
    AC_LIBOBJ([strdup])
400
    AC_LIBOBJ([vasprintf])
401
 
402
    for f in $funcs; do
403
      case "$f" in
404
        asprintf | basename | insque | random | strdup | vasprintf)
405
          ;;
406
        *)
407
          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
408
          AC_DEFINE_UNQUOTED($n)
409
          ;;
410
      esac
411
    done
412
 
413
    # newlib doesnt provide any of the variables in $vars, so we
414
    # dont have to check them here.
415
 
416
    # Of the functions in $checkfuncs, newlib only has strerror.
417
    AC_DEFINE(HAVE_STRERROR)
418
 
419
    setobjs=yes
420
 
421
  fi
422
 
423
  # If we are being configured for Mingw, we know which functions
424
  # Mingw provides and which ones we will be expected to provide.
425
 
426
  case "${host}" in
427
  *-*-mingw*)
428
    AC_LIBOBJ([asprintf])
429
    AC_LIBOBJ([basename])
430
    AC_LIBOBJ([bcmp])
431
    AC_LIBOBJ([bcopy])
432
    AC_LIBOBJ([bzero])
433
    AC_LIBOBJ([clock])
434
    AC_LIBOBJ([ffs])
435
    AC_LIBOBJ([getpagesize])
436
    AC_LIBOBJ([index])
437
    AC_LIBOBJ([insque])
438
    AC_LIBOBJ([mempcpy])
439
    AC_LIBOBJ([mkstemps])
440
    AC_LIBOBJ([random])
441
    AC_LIBOBJ([rindex])
442
    AC_LIBOBJ([sigsetmask])
443
    AC_LIBOBJ([stpcpy])
444
    AC_LIBOBJ([stpncpy])
445
    AC_LIBOBJ([strndup])
446
    AC_LIBOBJ([strverscmp])
447
    AC_LIBOBJ([vasprintf])
448
    AC_LIBOBJ([waitpid])
449
 
450
    for f in $funcs; do
451
      case "$f" in
452
        asprintf | basename | bcmp | bcopy | bzero | clock | ffs | getpagesize | index | insque | mempcpy | mkstemps | random | rindex | sigsetmask | stpcpy | stpncpy | strdup | strndup | strverscmp | vasprintf | waitpid)
453
          ;;
454
        *)
455
          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
456
          AC_DEFINE_UNQUOTED($n)
457
          ;;
458
      esac
459
    done
460
 
461
    # Mingw doesnt provide any of the variables in $vars, so we
462
    # dont have to check them here.
463
 
464
    # Of the functions in $checkfuncs, Mingw only has strerror.
465
    AC_DEFINE(HAVE_STRERROR)
466
 
467
    setobjs=yes
468
    ;;
469
 
470
  esac
471
 
472
  # We may wish to install the target headers somewhere.
473
  AC_ARG_ENABLE(install-libiberty,
474
  [  --enable-install-libiberty       Install headers for end users],
475
  enable_install_libiberty=$enableval,
476
  enable_install_libiberty=no)dnl
477
 
478
  # Option parsed, now set things appropriately.
479
  case x"$enable_install_libiberty" in
480
    xyes|x)
481
      target_header_dir=libiberty
482
      ;;
483
    xno)
484
      target_header_dir=
485
      ;;
486
    *)
487
      # This could be sanity-checked in various ways...
488
      target_header_dir="${enable_install_libiberty}"
489
      ;;
490
  esac
491
 
492
 
493
else
494
 
495
   # Not a target library, so we set things up to run the test suite.
496
   CHECK=really-check
497
 
498
fi
499
 
500
AC_SUBST(CHECK)
501
AC_SUBST(target_header_dir)
502
 
503
case "${host}" in
504
  *-*-cygwin* | *-*-mingw*)
505
    AC_DEFINE(HAVE_SYS_ERRLIST)
506
    AC_DEFINE(HAVE_SYS_NERR)
507
    ;;
508
esac
509
 
510
if test -z "${setobjs}"; then
511
  case "${host}" in
512
 
513
  *-*-vxworks*)
514
    # Handle VxWorks configuration specially, since on VxWorks the
515
    # libraries are actually on the target board, not in the file
516
    # system.
517
    AC_LIBOBJ([basename])
518
    AC_LIBOBJ([getpagesize])
519
    AC_LIBOBJ([insque])
520
    AC_LIBOBJ([random])
521
    AC_LIBOBJ([strcasecmp])
522
    AC_LIBOBJ([strncasecmp])
523
    AC_LIBOBJ([strdup])
524
    AC_LIBOBJ([vfork])
525
    AC_LIBOBJ([waitpid])
526
    AC_LIBOBJ([vasprintf])
527
    for f in $funcs; do
528
      case "$f" in
529
        basename | getpagesize | insque | random | strcasecmp)
530
          ;;
531
        strncasecmp | strdup | vfork | waitpid | vasprintf)
532
          ;;
533
        *)
534
          n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
535
          AC_DEFINE_UNQUOTED($n)
536
          ;;
537
      esac
538
    done
539
 
540
    # VxWorks doesn't provide any of the variables in $vars, so we
541
    # don't have to check them here.
542
 
543
    # Of the functions in $checkfuncs, VxWorks only has strerror.
544
    AC_DEFINE(HAVE_STRERROR)
545
 
546
    setobjs=yes
547
    ;;
548
 
549
  *-*-msdosdjgpp)
550
    for f in atexit basename bcmp bcopy bsearch bzero calloc clock ffs \
551
             getcwd getpagesize getrusage gettimeofday \
552
             index insque memchr memcmp memcpy memmove memset psignal \
553
             putenv random rename rindex sbrk setenv stpcpy strcasecmp \
554
             strchr strdup strerror strncasecmp strrchr strstr strtod \
555
             strtol strtoul sysconf times tmpnam vfprintf vprintf \
556
             vsprintf waitpid
557
    do
558
      n=HAVE_`echo $f | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
559
      AC_DEFINE_UNQUOTED($n)
560
    done
561
 
562
 
563
    setobjs=yes
564
    ;;
565
 
566
  esac
567
fi
568
 
569
if test -z "${setobjs}"; then
570
 
571
  case "${host}" in
572
 
573
  *-*-cygwin*)
574
    # The Cygwin library actually uses a couple of files from
575
    # libiberty when it is built.  If we are building a native
576
    # Cygwin, and we run the tests, we will appear to have these
577
    # files.  However, when we go on to build winsup, we will wind up
578
    # with a library which does not have the files, since they should
579
    # have come from libiberty.
580
 
581
    # We handle this by removing the functions the winsup library
582
    # provides from our shell variables, so that they appear to be
583
    # missing.
584
 
585
    # DJ - only if we're *building* cygwin, not just building *with* cygwin
586
 
587
    if test -n "${with_target_subdir}"
588
    then
589
      funcs="`echo $funcs | sed -e 's/random//'`"
590
      AC_LIBOBJ([random])
591
      vars="`echo $vars | sed -e 's/sys_siglist//'`"
592
      checkfuncs="`echo $checkfuncs | sed -e 's/strsignal//' -e 's/psignal//'`"
593
    fi
594
    ;;
595
 
596
  *-*-mingw32*)
597
    # Under mingw32, sys_nerr and sys_errlist exist, but they are
598
    # macros, so the test below won't find them.
599
    libiberty_cv_var_sys_nerr=yes
600
    libiberty_cv_var_sys_errlist=yes
601
    ;;
602
 
603
  *-*-msdosdjgpp*)
604
    # vfork and fork are stubs.
605
    ac_cv_func_vfork_works=no
606
    ;;
607
 
608
  *-*-uwin*)
609
    # Under some versions of uwin, vfork is notoriously buggy and the test
610
    # can hang configure; on other versions, vfork exists just as a stub.
611
    # FIXME: This should be removed once vfork in uwin's runtime is fixed.
612
    ac_cv_func_vfork_works=no
613
    # Under uwin 2.0+, sys_nerr and sys_errlist exist, but they are
614
    # macros (actually, these are imported from a DLL, but the end effect
615
    # is the same), 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
  *-*-*vms*)
621
    # Under VMS, vfork works very different than on Unix. The standard test
622
    # won't work, and it isn't easily adaptable. It makes more sense to
623
    # just force it.
624
    ac_cv_func_vfork_works=yes
625
    ;;
626
 
627
  esac
628
 
629
  # We haven't set the list of objects yet.  Use the standard autoconf
630
  # tests.  This will only work if the compiler works.
631
  AC_ISC_POSIX
632
  AC_REPLACE_FUNCS($funcs)
633
  libiberty_AC_FUNC_C_ALLOCA
634
  AC_FUNC_FORK
635
  if test $ac_cv_func_vfork_works = no; then
636
    AC_LIBOBJ([vfork])
637
  fi
638
  # We only need _doprnt if we might use it to implement v*printf.
639
  if test $ac_cv_func_vprintf != yes \
640
     || test $ac_cv_func_vfprintf != yes \
641
     || test $ac_cv_func_vsprintf != yes; then
642
    AC_REPLACE_FUNCS(_doprnt)
643
  else
644
    AC_CHECK_FUNCS(_doprnt)
645
  fi
646
 
647
  for v in $vars; do
648
    AC_MSG_CHECKING([for $v])
649
    AC_CACHE_VAL(libiberty_cv_var_$v,
650
      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int *p;]],[[extern int $v []; p = $v;]])],
651
                      [eval "libiberty_cv_var_$v=yes"],
652
                      [eval "libiberty_cv_var_$v=no"])])
653
    if eval "test \"`echo '$libiberty_cv_var_'$v`\" = yes"; then
654
      AC_MSG_RESULT(yes)
655
      n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
656
      AC_DEFINE_UNQUOTED($n)
657
    else
658
      AC_MSG_RESULT(no)
659
    fi
660
  done
661
 
662
  # special check for _system_configuration because AIX <4.3.2 do not
663
  # contain the `physmem' member.
664
  AC_MSG_CHECKING([for external symbol _system_configuration])
665
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]],
666
                        [[double x = _system_configuration.physmem;]])],
667
    [AC_MSG_RESULT([yes])
668
    AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
669
              [Define if you have the _system_configuration variable.])],
670
    [AC_MSG_RESULT([no])])
671
 
672
  AC_CHECK_FUNCS($checkfuncs)
673
  AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf])
674
  AC_CHECK_DECLS([calloc, getenv, getopt, malloc, realloc, sbrk])
675
  AC_CHECK_DECLS([strverscmp])
676
  libiberty_NEED_DECLARATION(canonicalize_file_name)
677
fi
678
 
679
# Figure out which version of pexecute to use.
680
case "${host}" in
681
     *-*-mingw* | *-*-winnt*)   pexecute=./pex-win32.o  ;;
682
     *-*-msdosdjgpp*)           pexecute=./pex-djgpp.o  ;;
683
     *-*-msdos*)                pexecute=./pex-msdos.o  ;;
684
     *)                         pexecute=./pex-unix.o   ;;
685
esac
686
AC_SUBST(pexecute)
687
 
688
libiberty_AC_FUNC_STRNCMP
689
 
690
# Install a library built with a cross compiler in $(tooldir) rather
691
# than $(libdir).
692
if test -z "${with_cross_host}"; then
693
  INSTALL_DEST=libdir
694
else
695
  INSTALL_DEST=tooldir
696
fi
697
AC_SUBST(INSTALL_DEST)
698
 
699
m4_pattern_allow(LIBOBJS)
700
L=""
701
for l in x $LIBOBJS; do
702
  case $l in
703
    x) ;;
704
    *) L="$L ./$l" ;;
705
  esac
706
done
707
LIBOBJS="$L"
708
 
709
dnl Required by html and install-html
710
AC_SUBST(datarootdir)
711
AC_SUBST(docdir)
712
AC_SUBST(htmldir)
713
 
714
# We need multilib support, but only if configuring for the target.
715
AC_CONFIG_FILES([Makefile testsuite/Makefile])
716
AC_CONFIG_COMMANDS([default],
717
  [[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
718
if test -n "$CONFIG_FILES"; then
719
  if test -n "${with_target_subdir}"; then
720
    # FIXME: We shouldn't need to set ac_file
721
    ac_file=Makefile
722
    LD="${ORIGINAL_LD_FOR_MULTILIBS}"
723
    . ${libiberty_topdir}/config-ml.in
724
  fi
725
fi]],
726
[[srcdir=${srcdir}
727
host=${host}
728
target=${target}
729
with_target_subdir=${with_target_subdir}
730
with_multisubdir=${with_multisubdir}
731
ac_configure_args="--enable-multilib ${ac_configure_args}"
732
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
733
ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
734
libiberty_topdir=${libiberty_topdir}
735
]])
736
AC_OUTPUT

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