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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [fixincludes/] [aclocal.m4] - Blame information for rev 179

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Line No. Rev Author Line
1 38 julius
sinclude(../config/acx.m4)
2
sinclude(../config/gettext.m4)
3
sinclude(../config/progtest.m4)
4
sinclude(../config/warnings.m4)
5
 
6
dnl See whether we need a declaration for a function.
7
dnl The result is highly dependent on the INCLUDES passed in, so make sure
8
dnl to use a different cache variable name in this macro if it is invoked
9
dnl in a different context somewhere else.
10
dnl gcc_AC_CHECK_DECL(SYMBOL,
11
dnl     [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
12
AC_DEFUN([gcc_AC_CHECK_DECL],
13
[AC_MSG_CHECKING([whether $1 is declared])
14
AC_CACHE_VAL(gcc_cv_have_decl_$1,
15
[AC_TRY_COMPILE([$4],
16
[#ifndef $1
17
char *(*pfn) = (char *(*)) $1 ;
18
#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
19
if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
20
  AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
21
else
22
  AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
23
fi
24
])dnl
25
 
26
dnl Check multiple functions to see whether each needs a declaration.
27
dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
28
dnl gcc_AC_CHECK_DECLS(SYMBOLS,
29
dnl     [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
30
AC_DEFUN([gcc_AC_CHECK_DECLS],
31
[AC_FOREACH([gcc_AC_Func], [$1],
32
  [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_[]gcc_AC_Func),
33
  [Define to 1 if we found a declaration for ']gcc_AC_Func[', otherwise
34
   define to 0.])])dnl
35
for ac_func in $1
36
do
37
  ac_tr_decl=AS_TR_CPP([HAVE_DECL_$ac_func])
38
gcc_AC_CHECK_DECL($ac_func,
39
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
40
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
41
dnl It is possible that the include files passed in here are local headers
42
dnl which supply a backup declaration for the relevant prototype based on
43
dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test
44
dnl will always return success.  E.g. see libiberty.h's handling of
45
dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to
46
dnl 1 so that any local headers used do not provide their own prototype
47
dnl during this test.
48
#undef $ac_tr_decl
49
#define $ac_tr_decl 1
50
  $4
51
)
52
done
53
])
54
 
55
dnl 'make compare' can be significantly faster, if cmp itself can
56
dnl skip bytes instead of using tail.  The test being performed is
57
dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
58
dnl but we need to sink errors and handle broken shells.  We also test
59
dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
60
dnl accepted by cmp on some systems.
61
AC_DEFUN([gcc_AC_PROG_CMP_IGNORE_INITIAL],
62
[AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip,
63
[ echo abfoo >t1
64
  echo cdfoo >t2
65
  gcc_cv_prog_cmp_skip=slowcompare
66
  if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
67
    if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
68
      :
69
    else
70
      gcc_cv_prog_cmp_skip=gnucompare
71
    fi
72
  fi
73
  if test $gcc_cv_prog_cmp_skip = slowcompare ; then
74
    if cmp t1 t2 2 2 > /dev/null 2>&1; then
75
      if cmp t1 t2 1 1 > /dev/null 2>&1; then
76
        :
77
      else
78
        gcc_cv_prog_cmp_skip=fastcompare
79
      fi
80
    fi
81
  fi
82
  rm t1 t2
83
])
84
make_compare_target=$gcc_cv_prog_cmp_skip
85
AC_SUBST(make_compare_target)
86
])
87
 
88
dnl See if the printf functions in libc support %p in format strings.
89
AC_DEFUN([gcc_AC_FUNC_PRINTF_PTR],
90
[AC_CACHE_CHECK(whether the printf functions support %p,
91
  gcc_cv_func_printf_ptr,
92
[AC_TRY_RUN([#include <stdio.h>
93
 
94
int main()
95
{
96
  char buf[64];
97
  char *p = buf, *q = NULL;
98
  sprintf(buf, "%p", p);
99
  sscanf(buf, "%p", &q);
100
  return (p != q);
101
}], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
102
        gcc_cv_func_printf_ptr=no)
103
rm -f core core.* *.core])
104
if test $gcc_cv_func_printf_ptr = yes ; then
105
  AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
106
fi
107
])
108
 
109
dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
110
AC_DEFUN([gcc_AC_PROG_LN_S],
111
[AC_MSG_CHECKING(whether ln -s works)
112
AC_CACHE_VAL(gcc_cv_prog_LN_S,
113
[rm -f conftestdata_t
114
echo >conftestdata_f
115
if ln -s conftestdata_f conftestdata_t 2>/dev/null
116
then
117
  gcc_cv_prog_LN_S="ln -s"
118
else
119
  if ln conftestdata_f conftestdata_t 2>/dev/null
120
  then
121
    gcc_cv_prog_LN_S=ln
122
  else
123
    gcc_cv_prog_LN_S=cp
124
  fi
125
fi
126
rm -f conftestdata_f conftestdata_t
127
])dnl
128
LN_S="$gcc_cv_prog_LN_S"
129
if test "$gcc_cv_prog_LN_S" = "ln -s"; then
130
  AC_MSG_RESULT(yes)
131
else
132
  if test "$gcc_cv_prog_LN_S" = "ln"; then
133
    AC_MSG_RESULT([no, using ln])
134
  else
135
    AC_MSG_RESULT([no, and neither does ln, so using cp])
136
  fi
137
fi
138
AC_SUBST(LN_S)dnl
139
])
140
 
141
dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
142
dnl of the usual 2.
143
AC_DEFUN([gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG],
144
[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
145
[AC_TRY_COMPILE([
146
#include <sys/types.h>
147
#ifdef HAVE_SYS_STAT_H
148
# include <sys/stat.h>
149
#endif
150
#ifdef HAVE_UNISTD_H
151
# include <unistd.h>
152
#endif
153
#ifdef HAVE_DIRECT_H
154
# include <direct.h>
155
#endif], [mkdir ("foo", 0);],
156
        gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
157
if test $gcc_cv_mkdir_takes_one_arg = yes ; then
158
  AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
159
fi
160
])
161
 
162
AC_DEFUN([gcc_AC_PROG_INSTALL],
163
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
164
# Find a good install program.  We prefer a C program (faster),
165
# so one script is as good as another.  But avoid the broken or
166
# incompatible versions:
167
# SysV /etc/install, /usr/sbin/install
168
# SunOS /usr/etc/install
169
# IRIX /sbin/install
170
# AIX /bin/install
171
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
172
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
173
# ./install, which can be erroneously created by make from ./install.sh.
174
AC_MSG_CHECKING(for a BSD compatible install)
175
if test -z "$INSTALL"; then
176
AC_CACHE_VAL(ac_cv_path_install,
177
[  IFS="${IFS=  }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
178
  for ac_dir in $PATH; do
179
    # Account for people who put trailing slashes in PATH elements.
180
    case "$ac_dir/" in
181
    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
182
    *)
183
      # OSF1 and SCO ODT 3.0 have their own names for install.
184
      for ac_prog in ginstall scoinst install; do
185
        if test -f $ac_dir/$ac_prog; then
186
          if test $ac_prog = install &&
187
            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
188
            # AIX install.  It has an incompatible calling convention.
189
            # OSF/1 installbsd also uses dspmsg, but is usable.
190
            :
191
          else
192
            ac_cv_path_install="$ac_dir/$ac_prog -c"
193
            break 2
194
          fi
195
        fi
196
      done
197
      ;;
198
    esac
199
  done
200
  IFS="$ac_save_IFS"
201
])dnl
202
  if test "${ac_cv_path_install+set}" = set; then
203
    INSTALL="$ac_cv_path_install"
204
  else
205
    # As a last resort, use the slow shell script.  We don't cache a
206
    # path for INSTALL within a source directory, because that will
207
    # break other packages using the cache if that directory is
208
    # removed, or if the path is relative.
209
    INSTALL="$ac_install_sh"
210
  fi
211
fi
212
dnl We do special magic for INSTALL instead of AC_SUBST, to get
213
dnl relative paths right.
214
AC_MSG_RESULT($INSTALL)
215
AC_SUBST(INSTALL)dnl
216
 
217
# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
218
# It thinks the first close brace ends the variable substitution.
219
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
220
AC_SUBST(INSTALL_PROGRAM)dnl
221
 
222
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
223
AC_SUBST(INSTALL_DATA)dnl
224
])
225
 
226
dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
227
dnl like AC_PATH_PROG but use other cache variables
228
AC_DEFUN([GCC_PATH_PROG],
229
[# Extract the first word of "$2", so it can be a program name with args.
230
set dummy $2; ac_word=[$]2
231
AC_MSG_CHECKING([for $ac_word])
232
AC_CACHE_VAL(gcc_cv_path_$1,
233
[case "[$]$1" in
234
  /*)
235
  gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
236
  ;;
237
  ?:/*)
238
  gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
239
  ;;
240
  *)
241
  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS=":"
242
dnl $ac_dummy forces splitting on constant user-supplied paths.
243
dnl POSIX.2 word splitting is done only on the output of word expansions,
244
dnl not every word.  This closes a longstanding sh security hole.
245
  ac_dummy="ifelse([$4], , $PATH, [$4])"
246
  for ac_dir in $ac_dummy; do
247
    test -z "$ac_dir" && ac_dir=.
248
    if test -f $ac_dir/$ac_word; then
249
      gcc_cv_path_$1="$ac_dir/$ac_word"
250
      break
251
    fi
252
  done
253
  IFS="$ac_save_ifs"
254
dnl If no 3rd arg is given, leave the cache variable unset,
255
dnl so GCC_PATH_PROGS will keep looking.
256
ifelse([$3], , , [  test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
257
])dnl
258
  ;;
259
esac])dnl
260
$1="$gcc_cv_path_$1"
261
if test -n "[$]$1"; then
262
  AC_MSG_RESULT([$]$1)
263
else
264
  AC_MSG_RESULT(no)
265
fi
266
AC_SUBST($1)dnl
267
])
268
 
269
# mmap(2) blacklisting.  Some platforms provide the mmap library routine
270
# but don't support all of the features we need from it.
271
AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST],
272
[
273
AC_CHECK_HEADER([sys/mman.h],
274
                [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no])
275
AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no])
276
if test "$gcc_header_sys_mman_h" != yes \
277
 || test "$gcc_func_mmap" != yes; then
278
   gcc_cv_func_mmap_file=no
279
   gcc_cv_func_mmap_dev_zero=no
280
   gcc_cv_func_mmap_anon=no
281
else
282
   AC_CACHE_CHECK([whether read-only mmap of a plain file works],
283
  gcc_cv_func_mmap_file,
284
  [# Add a system to this blacklist if
285
   # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
286
   # memory area containing the same data that you'd get if you applied
287
   # read() to the same fd.  The only system known to have a problem here
288
   # is VMS, where text files have record structure.
289
   case "$host_os" in
290
     vms* | ultrix*)
291
        gcc_cv_func_mmap_file=no ;;
292
     *)
293
        gcc_cv_func_mmap_file=yes;;
294
   esac])
295
   AC_CACHE_CHECK([whether mmap from /dev/zero works],
296
  gcc_cv_func_mmap_dev_zero,
297
  [# Add a system to this blacklist if it has mmap() but /dev/zero
298
   # does not exist, or if mmapping /dev/zero does not give anonymous
299
   # zeroed pages with both the following properties:
300
   # 1. If you map N consecutive pages in with one call, and then
301
   #    unmap any subset of those pages, the pages that were not
302
   #    explicitly unmapped remain accessible.
303
   # 2. If you map two adjacent blocks of memory and then unmap them
304
   #    both at once, they must both go away.
305
   # Systems known to be in this category are Windows (all variants),
306
   # VMS, and Darwin.
307
   case "$host_os" in
308
     vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
309
        gcc_cv_func_mmap_dev_zero=no ;;
310
     *)
311
        gcc_cv_func_mmap_dev_zero=yes;;
312
   esac])
313
 
314
   # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
315
   AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
316
    [AC_TRY_COMPILE(
317
[#include <sys/types.h>
318
#include <sys/mman.h>
319
#include <unistd.h>
320
 
321
#ifndef MAP_ANONYMOUS
322
#define MAP_ANONYMOUS MAP_ANON
323
#endif
324
],
325
[int n = MAP_ANONYMOUS;],
326
    gcc_cv_decl_map_anon=yes,
327
    gcc_cv_decl_map_anon=no)])
328
 
329
   if test $gcc_cv_decl_map_anon = no; then
330
     gcc_cv_func_mmap_anon=no
331
   else
332
     AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
333
     gcc_cv_func_mmap_anon,
334
  [# Add a system to this blacklist if it has mmap() and MAP_ANON or
335
   # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
336
   # doesn't give anonymous zeroed pages with the same properties listed
337
   # above for use of /dev/zero.
338
   # Systems known to be in this category are Windows, VMS, and SCO Unix.
339
   case "$host_os" in
340
     vms* | cygwin* | pe | mingw* | sco* | udk* )
341
        gcc_cv_func_mmap_anon=no ;;
342
     *)
343
        gcc_cv_func_mmap_anon=yes;;
344
   esac])
345
   fi
346
fi
347
 
348
if test $gcc_cv_func_mmap_file = yes; then
349
  AC_DEFINE(HAVE_MMAP_FILE, 1,
350
            [Define if read-only mmap of a plain file works.])
351
fi
352
if test $gcc_cv_func_mmap_dev_zero = yes; then
353
  AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
354
            [Define if mmap of /dev/zero works.])
355
fi
356
if test $gcc_cv_func_mmap_anon = yes; then
357
  AC_DEFINE(HAVE_MMAP_ANON, 1,
358
            [Define if mmap with MAP_ANON(YMOUS) works.])
359
fi
360
])
361
 
362
dnl Locate a program and check that its version is acceptable.
363
dnl AC_PROG_CHECK_VER(var, name, version-switch,
364
dnl                  version-extract-regexp, version-glob)
365
AC_DEFUN([gcc_AC_CHECK_PROG_VER],
366
[AC_CHECK_PROG([$1], [$2], [$2])
367
if test -n "[$]$1"; then
368
  # Found it, now check the version.
369
  AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
370
[changequote(<<,>>)dnl
371
  ac_prog_version=`<<$>>$1 $3 2>&1 |
372
                   sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
373
changequote([,])dnl
374
  echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
375
changequote(<<,>>)dnl
376
  case $ac_prog_version in
377
    '')     gcc_cv_prog_$2_modern=no;;
378
    <<$5>>)
379
            gcc_cv_prog_$2_modern=yes;;
380
    *)      gcc_cv_prog_$2_modern=no;;
381
  esac
382
changequote([,])dnl
383
])
384
else
385
  gcc_cv_prog_$2_modern=no
386
fi
387
])
388
 
389
dnl Determine if enumerated bitfields are unsigned.   ISO C says they can
390
dnl be either signed or unsigned.
391
dnl
392
AC_DEFUN([gcc_AC_C_ENUM_BF_UNSIGNED],
393
[AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
394
[AC_TRY_RUN(#include <stdlib.h>
395
enum t { BLAH = 128 } ;
396
struct s_t { enum t member : 8; } s ;
397
int main(void)
398
{
399
        s.member = BLAH;
400
        if (s.member < 0) exit(1);
401
        exit(0);
402
 
403
}, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
404
if test $gcc_cv_enum_bf_unsigned = yes; then
405
  AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
406
    [Define if enumerated bitfields are treated as unsigned values.])
407
fi])
408
 
409
dnl Probe number of bits in a byte.
410
dnl Note C89 requires CHAR_BIT >= 8.
411
dnl
412
AC_DEFUN([gcc_AC_C_CHAR_BIT],
413
[AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
414
[AC_EGREP_CPP(found,
415
[#ifdef HAVE_LIMITS_H
416
#include <limits.h>
417
#endif
418
#ifdef CHAR_BIT
419
found
420
#endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
421
])
422
if test $gcc_cv_decl_char_bit = no; then
423
  AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
424
[i=8
425
 gcc_cv_c_nbby=
426
 while test $i -lt 65; do
427
   AC_TRY_COMPILE(,
428
     [switch(0) {
429
  case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
430
  case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
431
  ; }],
432
     [gcc_cv_c_nbby=$i; break])
433
   i=`expr $i + 1`
434
 done
435
 test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
436
])
437
if test $gcc_cv_c_nbby = failed; then
438
  AC_MSG_ERROR(cannot determine number of bits in a byte)
439
else
440
  AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
441
  [Define as the number of bits in a byte, if \`limits.h' doesn't.])
442
fi
443
fi])
444
 
445
dnl Checking for long long.
446
dnl By Caolan McNamara <caolan@skynet.ie>
447
dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
448
dnl
449
AC_DEFUN([gcc_AC_C_LONG_LONG],
450
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
451
  [AC_TRY_COMPILE(,[long long int i;],
452
         ac_cv_c_long_long=yes,
453
         ac_cv_c_long_long=no)])
454
  if test $ac_cv_c_long_long = yes; then
455
    AC_DEFINE(HAVE_LONG_LONG, 1,
456
      [Define if your compiler supports the \`long long' type.])
457
  fi
458
AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
459
  [AC_TRY_COMPILE(,[__int64 i;],
460
        ac_cv_c___int64=yes,
461
        ac_cv_c___int64=no)])
462
  if test $ac_cv_c___int64 = yes; then
463
    AC_DEFINE(HAVE___INT64, 1,
464
      [Define if your compiler supports the \`__int64' type.])
465
  fi
466
])
467
 
468
#serial AM2
469
 
470
dnl From Bruno Haible.
471
 
472
AC_DEFUN([AM_ICONV],
473
[
474
  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
475
  dnl those with the standalone portable GNU libiconv installed).
476
 
477
  am_cv_lib_iconv_ldpath=
478
  AC_ARG_WITH([libiconv-prefix],
479
[  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
480
    for dir in `echo "$withval" | tr : ' '`; do
481
      if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
482
      if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
483
    done
484
   ])
485
 
486
  AC_CHECK_HEADERS([iconv.h])
487
 
488
  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
489
    am_cv_func_iconv="no, consider installing GNU libiconv"
490
    am_cv_lib_iconv=no
491
    AC_TRY_LINK([#include <stdlib.h>
492
#include <iconv.h>],
493
      [iconv_t cd = iconv_open("","");
494
       iconv(cd,NULL,NULL,NULL,NULL);
495
       iconv_close(cd);],
496
      am_cv_func_iconv=yes)
497
    if test "$am_cv_func_iconv" != yes; then
498
      am_save_LIBS="$LIBS"
499
      LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
500
      AC_TRY_LINK([#include <stdlib.h>
501
#include <iconv.h>],
502
        [iconv_t cd = iconv_open("","");
503
         iconv(cd,NULL,NULL,NULL,NULL);
504
         iconv_close(cd);],
505
        am_cv_lib_iconv=yes
506
        am_cv_func_iconv=yes)
507
      LIBS="$am_save_LIBS"
508
    fi
509
  ])
510
  if test "$am_cv_func_iconv" = yes; then
511
    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
512
    AC_MSG_CHECKING([for iconv declaration])
513
    AC_CACHE_VAL(am_cv_proto_iconv, [
514
      AC_TRY_COMPILE([
515
#include <stdlib.h>
516
#include <iconv.h>
517
extern
518
#ifdef __cplusplus
519
"C"
520
#endif
521
#if defined(__STDC__) || defined(__cplusplus)
522
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
523
#else
524
size_t iconv();
525
#endif
526
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
527
      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
528
    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
529
    AC_MSG_RESULT([$]{ac_t:-
530
         }[$]am_cv_proto_iconv)
531
    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
532
      [Define as const if the declaration of iconv() needs const.])
533
  fi
534
  LIBICONV=
535
  if test "$am_cv_lib_iconv" = yes; then
536
    LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
537
  fi
538
  AC_SUBST(LIBICONV)
539
])
540
 
541
AC_DEFUN([gcc_AC_INITFINI_ARRAY],
542
[AC_ARG_ENABLE(initfini-array,
543
        [  --enable-initfini-array      use .init_array/.fini_array sections],
544
        [], [
545
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
546
                 gcc_cv_initfini_array, [dnl
547
  AC_TRY_RUN([
548
static int x = -1;
549
int main (void) { return x; }
550
int foo (void) { x = 0; }
551
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;],
552
             [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
553
             [gcc_cv_initfini_array=no])])
554
  enable_initfini_array=$gcc_cv_initfini_array
555
])
556
if test $enable_initfini_array = yes; then
557
  AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
558
    [Define .init_array/.fini_array sections are available and working.])
559
fi])
560
 
561
dnl # _gcc_COMPUTE_GAS_VERSION
562
dnl # Used by gcc_GAS_VERSION_GTE_IFELSE
563
dnl #
564
dnl # WARNING:
565
dnl # gcc_cv_as_gas_srcdir must be defined before this.
566
dnl # This gross requirement will go away eventually.
567
AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
568
[gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
569
for f in $gcc_cv_as_bfd_srcdir/configure \
570
         $gcc_cv_as_gas_srcdir/configure \
571
         $gcc_cv_as_gas_srcdir/configure.in \
572
         $gcc_cv_as_gas_srcdir/Makefile.in ; do
573
  gcc_cv_gas_version=`grep '^VERSION=[[0-9]]*\.[[0-9]]*' $f`
574
  if test x$gcc_cv_gas_version != x; then
575
    break
576
  fi
577
done
578
gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"`
579
gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"`
580
gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"`
581
case $gcc_cv_gas_patch_version in
582
  "") gcc_cv_gas_patch_version="0" ;;
583
esac
584
gcc_cv_gas_vers=`expr \( \( $gcc_cv_gas_major_version \* 1000 \) \
585
                            + $gcc_cv_gas_minor_version \) \* 1000 \
586
                            + $gcc_cv_gas_patch_version`
587
]) []dnl # _gcc_COMPUTE_GAS_VERSION
588
 
589
dnl # gcc_GAS_VERSION_GTE_IFELSE([elf,] major, minor, patchlevel,
590
dnl #                     [command_if_true = :], [command_if_false = :])
591
dnl # Check to see if the version of GAS is greater than or
592
dnl # equal to the specified version.
593
dnl #
594
dnl # The first ifelse() shortens the shell code if the patchlevel
595
dnl # is unimportant (the usual case).  The others handle missing
596
dnl # commands.  Note that the tests are structured so that the most
597
dnl # common version number cases are tested first.
598
AC_DEFUN([_gcc_GAS_VERSION_GTE_IFELSE],
599
[ifelse([$1], elf,
600
 [if test $in_tree_gas_is_elf = yes \
601
  &&],
602
 [if]) test $gcc_cv_gas_vers -ge `expr \( \( $2 \* 1000 \) + $3 \) \* 1000 + $4`
603
  then dnl
604
ifelse([$5],,:,[$5])[]dnl
605
ifelse([$6],,,[
606
  else $6])
607
fi])
608
 
609
AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE],
610
[AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION])dnl
611
ifelse([$1], elf, [_gcc_GAS_VERSION_GTE_IFELSE($@)],
612
                  [_gcc_GAS_VERSION_GTE_IFELSE(,$@)])])
613
 
614
dnl gcc_GAS_CHECK_FEATURE(description, cv, [[elf,]major,minor,patchlevel],
615
dnl [extra switches to as], [assembler input],
616
dnl [extra testing logic], [command if feature available])
617
dnl
618
dnl Checks for an assembler feature.  If we are building an in-tree
619
dnl gas, the feature is available if the associated assembler version
620
dnl is greater than or equal to major.minor.patchlevel.  If not, then
621
dnl ASSEMBLER INPUT is fed to the assembler and the feature is available
622
dnl if assembly succeeds.  If EXTRA TESTING LOGIC is not the empty string,
623
dnl then it is run instead of simply setting CV to "yes" - it is responsible
624
dnl for doing so, if appropriate.
625
AC_DEFUN([gcc_GAS_CHECK_FEATURE],
626
[AC_CACHE_CHECK([assembler for $1], [$2],
627
 [[$2]=no
628
  ifelse([$3],,,[dnl
629
  if test $in_tree_gas = yes; then
630
    gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes])
631
  el])if test x$gcc_cv_as != x; then
632
    echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s
633
    if AC_TRY_COMMAND([$gcc_cv_as $4 -o conftest.o conftest.s >&AC_FD_CC])
634
    then
635
        ifelse([$6],, [$2]=yes, [$6])
636
    else
637
      echo "configure: failed program was" >&AC_FD_CC
638
      cat conftest.s >&AC_FD_CC
639
    fi
640
    rm -f conftest.o conftest.s
641
  fi])
642
ifelse([$7],,,[dnl
643
if test $[$2] = yes; then
644
  $7
645
fi])])
646
 
647
# lcmessage.m4 serial 3 (gettext-0.11.3)
648
dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
649
dnl This file is free software, distributed under the terms of the GNU
650
dnl General Public License.  As a special exception to the GNU General
651
dnl Public License, this file may be distributed as part of a program
652
dnl that contains a configuration script generated by Autoconf, under
653
dnl the same distribution terms as the rest of that program.
654
dnl
655
dnl This file can can be used in projects which are not available under
656
dnl the GNU General Public License or the GNU Library General Public
657
dnl License but which still want to provide support for the GNU gettext
658
dnl functionality.
659
dnl Please note that the actual code of the GNU gettext library is covered
660
dnl by the GNU Library General Public License, and the rest of the GNU
661
dnl gettext package package is covered by the GNU General Public License.
662
dnl They are *not* in the public domain.
663
 
664
dnl Authors:
665
dnl   Ulrich Drepper <drepper@cygnus.com>, 1995.
666
 
667
# Check whether LC_MESSAGES is available in <locale.h>.
668
 
669
AC_DEFUN([AM_LC_MESSAGES],
670
[
671
  AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
672
    [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
673
       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
674
  if test $am_cv_val_LC_MESSAGES = yes; then
675
    AC_DEFINE(HAVE_LC_MESSAGES, 1,
676
      [Define if your <locale.h> file defines LC_MESSAGES.])
677
  fi
678
])

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