1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
|
dnl See if stdbool.h properly defines bool and true/false.
AC_DEFUN(gcc_AC_HEADER_STDBOOL,
[AC_CACHE_CHECK([for working stdbool.h],
ac_cv_header_stdbool_h,
[AC_TRY_COMPILE([#include <stdbool.h>],
[bool foo = false;],
ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
if test $ac_cv_header_stdbool_h = yes; then
AC_DEFINE(HAVE_STDBOOL_H, 1,
[Define if you have a working <stdbool.h> header file.])
fi
])
dnl See whether we can include both string.h and strings.h.
AC_DEFUN(gcc_AC_HEADER_STRING,
[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
gcc_cv_header_string,
[AC_TRY_COMPILE([#include <string.h>
#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
if test $gcc_cv_header_string = yes; then
AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
fi
])
dnl See whether we need a declaration for a function.
dnl The result is highly dependent on the INCLUDES passed in, so make sure
dnl to use a different cache variable name in this macro if it is invoked
dnl in a different context somewhere else.
dnl gcc_AC_CHECK_DECL(SYMBOL,
dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECL,
[AC_MSG_CHECKING([whether $1 is declared])
AC_CACHE_VAL(gcc_cv_have_decl_$1,
[AC_TRY_COMPILE([$4],
[#ifndef $1
char *(*pfn) = (char *(*)) $1 ;
#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
fi
])dnl
dnl Check multiple functions to see whether each needs a declaration.
dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
dnl gcc_AC_CHECK_DECLS(SYMBOLS,
dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECLS,
[for ac_func in $1
do
changequote(, )dnl
ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
changequote([, ])dnl
gcc_AC_CHECK_DECL($ac_func,
[AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
[AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
dnl It is possible that the include files passed in here are local headers
dnl which supply a backup declaration for the relevant prototype based on
dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
dnl will always return success. E.g. see libiberty.h's handling of
dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
dnl 1 so that any local headers used do not provide their own prototype
dnl during this test.
#undef $ac_tr_decl
#define $ac_tr_decl 1
$4
)
done
dnl Automatically generate config.h entries via autoheader.
if test x = y ; then
patsubst(translit([$1], [a-z], [A-Z]), [\w+],
[AC_DEFINE([HAVE_DECL_\&], 1,
[Define to 1 if we found this declaration otherwise define to 0.])])dnl
fi
])
dnl See if the printf functions in libc support %p in format strings.
AC_DEFUN(gcc_AC_FUNC_PRINTF_PTR,
[AC_CACHE_CHECK(whether the printf functions support %p,
gcc_cv_func_printf_ptr,
[AC_TRY_RUN([#include <stdio.h>
int main()
{
char buf[64];
char *p = buf, *q = NULL;
sprintf(buf, "%p", p);
sscanf(buf, "%p", &q);
return (p != q);
}], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
gcc_cv_func_printf_ptr=no)
rm -f core core.* *.core])
if test $gcc_cv_func_printf_ptr = yes ; then
AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
fi
])
dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
AC_DEFUN(gcc_AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(gcc_cv_prog_LN_S,
[rm -f conftestdata_t
echo >conftestdata_f
if ln -s conftestdata_f conftestdata_t 2>/dev/null
then
gcc_cv_prog_LN_S="ln -s"
else
if ln conftestdata_f conftestdata_t 2>/dev/null
then
gcc_cv_prog_LN_S=ln
else
gcc_cv_prog_LN_S=cp
fi
fi
rm -f conftestdata_f conftestdata_t
])dnl
LN_S="$gcc_cv_prog_LN_S"
if test "$gcc_cv_prog_LN_S" = "ln -s"; then
AC_MSG_RESULT(yes)
else
if test "$gcc_cv_prog_LN_S" = "ln"; then
AC_MSG_RESULT([no, using ln])
else
AC_MSG_RESULT([no, and neither does ln, so using cp])
fi
fi
AC_SUBST(LN_S)dnl
])
dnl See if hard links work and if not, try to substitute either symbolic links or simple copy.
AC_DEFUN(gcc_AC_PROG_LN,
[AC_MSG_CHECKING(whether ln works)
AC_CACHE_VAL(gcc_cv_prog_LN,
[rm -f conftestdata_t
echo >conftestdata_f
if ln conftestdata_f conftestdata_t 2>/dev/null
then
gcc_cv_prog_LN="ln"
else
if ln -s conftestdata_f conftestdata_t 2>/dev/null
then
gcc_cv_prog_LN="ln -s"
else
gcc_cv_prog_LN=cp
fi
fi
rm -f conftestdata_f conftestdata_t
])dnl
LN="$gcc_cv_prog_LN"
if test "$gcc_cv_prog_LN" = "ln"; then
AC_MSG_RESULT(yes)
else
if test "$gcc_cv_prog_LN" = "ln -s"; then
AC_MSG_RESULT([no, using ln -s])
else
AC_MSG_RESULT([no, and neither does ln -s, so using cp])
fi
fi
AC_SUBST(LN)dnl
])
dnl See whether the stage1 host compiler accepts the volatile keyword.
AC_DEFUN(gcc_AC_C_VOLATILE,
[AC_CACHE_CHECK([for volatile], gcc_cv_c_volatile,
[AC_TRY_COMPILE(, [volatile int foo;],
gcc_cv_c_volatile=yes, gcc_cv_c_volatile=no)])
if test $gcc_cv_c_volatile = yes ; then
AC_DEFINE(HAVE_VOLATILE, 1, [Define if your compiler understands volatile.])
fi
])
dnl Check whether long double is supported. This differs from the
dnl built-in autoconf test in that it works for cross compiles.
AC_DEFUN(gcc_AC_C_LONG_DOUBLE,
[AC_CACHE_CHECK(for long double, gcc_cv_c_long_double,
[if test "$GCC" = yes; then
gcc_cv_c_long_double=yes
else
AC_TRY_COMPILE(,
[/* The Stardent Vistra knows sizeof(long double), but does not support it. */
long double foo = 0.0;
/* On Ultrix 4.3 cc, long double is 4 and double is 8. */
switch (0) case 0: case (sizeof(long double) >= sizeof(double)):;],
gcc_cv_c_long_double=yes, gcc_cv_c_long_double=no)
fi])
if test $gcc_cv_c_long_double = yes; then
AC_DEFINE(HAVE_LONG_DOUBLE, 1,
[Define if your compiler supports the \`long double' type.])
fi
])
dnl Check whether _Bool is built-in.
AC_DEFUN(gcc_AC_C__BOOL,
[AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
[AC_TRY_COMPILE(,
[_Bool foo;],
gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
])
if test $gcc_cv_c__bool = yes; then
AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
fi
])
dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
dnl of the usual 2.
AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,
[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
[AC_TRY_COMPILE([
#include <sys/types.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_DIRECT_H
# include <direct.h>
#endif], [mkdir ("foo", 0);],
gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
if test $gcc_cv_mkdir_takes_one_arg = yes ; then
AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
fi
])
AC_DEFUN(gcc_AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
AC_MSG_CHECKING(for a BSD compatible install)
if test -z "$INSTALL"; then
AC_CACHE_VAL(ac_cv_path_install,
[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
for ac_dir in $PATH; do
# Account for people who put trailing slashes in PATH elements.
case "$ac_dir/" in
/|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
*)
# OSF1 and SCO ODT 3.0 have their own names for install.
for ac_prog in ginstall scoinst install; do
if test -f $ac_dir/$ac_prog; then
if test $ac_prog = install &&
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
# AIX install. It has an incompatible calling convention.
# OSF/1 installbsd also uses dspmsg, but is usable.
:
else
ac_cv_path_install="$ac_dir/$ac_prog -c"
break 2
fi
fi
done
;;
esac
done
IFS="$ac_save_IFS"
])dnl
if test "${ac_cv_path_install+set}" = set; then
INSTALL="$ac_cv_path_install"
else
# As a last resort, use the slow shell script. We don't cache a
# path for INSTALL within a source directory, because that will
# break other packages using the cache if that directory is
# removed, or if the path is relative.
INSTALL="$ac_install_sh"
fi
fi
dnl We do special magic for INSTALL instead of AC_SUBST, to get
dnl relative paths right.
AC_MSG_RESULT($INSTALL)
AC_SUBST(INSTALL)dnl
# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
AC_SUBST(INSTALL_PROGRAM)dnl
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
AC_SUBST(INSTALL_DATA)dnl
])
dnl Test for GNAT.
dnl We require the gnatbind program, and a compiler driver that
dnl understands Ada. The user may set the driver name explicitly
dnl with ADAC; also, the user's CC setting is tried. Failing that,
dnl we try gcc and cc, then a sampling of names known to be used for
dnl the Ada driver on various systems.
dnl
dnl Sets the shell variable have_gnat to yes or no as appropriate, and
dnl substitutes GNATBIND and ADAC.
AC_DEFUN([gcc_AC_PROG_GNAT],
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
AC_CHECK_TOOL(GNATBIND, gnatbind, no)
AC_CACHE_CHECK([for compiler driver that understands Ada],
gcc_cv_prog_adac,
[cat >conftest.adb <<EOF
procedure conftest is begin null; end conftest;
EOF
gcc_cv_prog_adac=no
# Have to do ac_tool_prefix and user overrides by hand.
for cand in ${ADAC+"$ADAC"} ${CC+"$CC"} \
${ac_tool_prefix}gcc gcc \
${ac_tool_prefix}cc cc \
${ac_tool_prefix}gnatgcc gnatgcc \
${ac_tool_prefix}gnatcc gnatcc \
${ac_tool_prefix}adagcc adagcc \
${ac_tool_prefix}adacc adacc ; do
# There is a bug in all released versions of GCC which causes the
# driver to exit successfully when the appropriate language module
# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
# Therefore we must check for the error message as well as an
# unsuccessful exit.
errors=`($cand -c conftest.adb) 2>&1 || echo failure`
if test x"$errors" = x; then
gcc_cv_prog_adac=$cand
break
fi
done
rm -f conftest.*])
ADAC=$gcc_cv_prog_adac
AC_SUBST(ADAC)
if test x$GNATBIND != xno && test x$ADAC != xno; then
have_gnat=yes
else
have_gnat=no
fi
])
#serial 1
dnl This test replaces the one in autoconf.
dnl Currently this macro should have the same name as the autoconf macro
dnl because gettext's gettext.m4 (distributed in the automake package)
dnl still uses it. Otherwise, the use in gettext.m4 makes autoheader
dnl give these diagnostics:
dnl configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
dnl configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
undefine([AC_ISC_POSIX])
AC_DEFUN(AC_ISC_POSIX,
[
dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
]
)
dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
dnl like AC_PATH_PROG but use other cache variables
AC_DEFUN(GCC_PATH_PROG,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(gcc_cv_path_$1,
[case "[$]$1" in
/*)
gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
;;
?:/*)
gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl POSIX.2 word splitting is done only on the output of word expansions,
dnl not every word. This closes a longstanding sh security hole.
ac_dummy="ifelse([$4], , $PATH, [$4])"
for ac_dir in $ac_dummy; do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
gcc_cv_path_$1="$ac_dir/$ac_word"
break
fi
done
IFS="$ac_save_ifs"
dnl If no 3rd arg is given, leave the cache variable unset,
dnl so GCC_PATH_PROGS will keep looking.
ifelse([$3], , , [ test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
])dnl
;;
esac])dnl
$1="$gcc_cv_path_$1"
if test -n "[$]$1"; then
AC_MSG_RESULT([$]$1)
else
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
])
# mmap(2) blacklisting. Some platforms provide the mmap library routine
# but don't support all of the features we need from it.
AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST],
[if test $ac_cv_header_sys_mman_h != yes \
|| test $ac_cv_func_mmap != yes; then
gcc_cv_func_mmap_file=no
gcc_cv_func_mmap_dev_zero=no
gcc_cv_func_mmap_anon=no
else
AC_CACHE_CHECK([whether read-only mmap of a plain file works],
gcc_cv_func_mmap_file,
[# Add a system to this blacklist if
# mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
# memory area containing the same data that you'd get if you applied
# read() to the same fd. The only system known to have a problem here
# is VMS, where text files have record structure.
case "$host_os" in
vms*)
gcc_cv_func_mmap_file=no ;;
*)
gcc_cv_func_mmap_file=yes;;
esac])
AC_CACHE_CHECK([whether mmap from /dev/zero works],
gcc_cv_func_mmap_dev_zero,
[# Add a system to this blacklist if it has mmap() but /dev/zero
# does not exist, or if mmapping /dev/zero does not give anonymous
# zeroed pages with both the following properties:
# 1. If you map N consecutive pages in with one call, and then
# unmap any subset of those pages, the pages that were not
# explicitly unmapped remain accessible.
# 2. If you map two adjacent blocks of memory and then unmap them
# both at once, they must both go away.
# Systems known to be in this category are Windows (all variants),
# VMS, and Darwin.
case "$host_os" in
vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
gcc_cv_func_mmap_dev_zero=no ;;
*)
gcc_cv_func_mmap_dev_zero=yes;;
esac])
# Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
[AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>
#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
],
[int n = MAP_ANONYMOUS;],
gcc_cv_decl_map_anon=yes,
gcc_cv_decl_map_anon=no)])
if test $gcc_cv_decl_map_anon = no; then
gcc_cv_func_mmap_anon=no
else
AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
gcc_cv_func_mmap_anon,
[# Add a system to this blacklist if it has mmap() and MAP_ANON or
# MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
# doesn't give anonymous zeroed pages with the same properties listed
# above for use of /dev/zero.
# Systems known to be in this category are Windows, VMS, and SCO Unix.
case "$host_os" in
vms* | cygwin* | pe | mingw* | sco* | udk* )
gcc_cv_func_mmap_anon=no ;;
*)
gcc_cv_func_mmap_anon=yes;;
esac])
fi
fi
if test $gcc_cv_func_mmap_file = yes; then
AC_DEFINE(HAVE_MMAP_FILE, 1,
[Define if read-only mmap of a plain file works.])
fi
if test $gcc_cv_func_mmap_dev_zero = yes; then
AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
[Define if mmap of /dev/zero works.])
fi
if test $gcc_cv_func_mmap_anon = yes; then
AC_DEFINE(HAVE_MMAP_ANON, 1,
[Define if mmap with MAP_ANON(YMOUS) works.])
fi
])
dnl Locate a program and check that its version is acceptable.
dnl AC_PROG_CHECK_VER(var, name, version-switch,
dnl version-extract-regexp, version-glob)
AC_DEFUN(gcc_AC_CHECK_PROG_VER,
[AC_CHECK_PROG([$1], [$2], [$2])
if test -n "[$]$1"; then
# Found it, now check the version.
AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
[changequote(<<,>>)dnl
ac_prog_version=`<<$>>$1 $3 2>&1 |
sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
changequote([,])dnl
echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
changequote(<<,>>)dnl
case $ac_prog_version in
'') gcc_cv_prog_$2_modern=no;;
<<$5>>)
gcc_cv_prog_$2_modern=yes;;
*) gcc_cv_prog_$2_modern=no;;
esac
changequote([,])dnl
])
else
gcc_cv_prog_$2_modern=no
fi
])
dnl Determine if enumerated bitfields are unsigned. ISO C says they can
dnl be either signed or unsigned.
dnl
AC_DEFUN(gcc_AC_C_ENUM_BF_UNSIGNED,
[AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
[AC_TRY_RUN(#include <stdlib.h>
enum t { BLAH = 128 } ;
struct s_t { enum t member : 8; } s ;
int main(void)
{
s.member = BLAH;
if (s.member < 0) exit(1);
exit(0);
}, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
if test $gcc_cv_enum_bf_unsigned = yes; then
AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
[Define if enumerated bitfields are treated as unsigned values.])
fi])
dnl Host type sizes probe.
dnl By Kaveh R. Ghazi. One typo fixed since.
dnl
AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF],
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
dnl The cache variable name.
define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
changequote([, ])dnl
AC_MSG_CHECKING(size of $1)
AC_CACHE_VAL(AC_CV_NAME,
[for ac_size in 4 8 1 2 16 $3 ; do # List sizes in rough order of prevalence.
AC_TRY_COMPILE([#include "confdefs.h"
#include <sys/types.h>
$2
], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
if test x$AC_CV_NAME != x ; then break; fi
done
])
if test x$AC_CV_NAME = x ; then
AC_MSG_ERROR([cannot determine a size for $1])
fi
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
])
dnl Probe number of bits in a byte.
dnl Note C89 requires CHAR_BIT >= 8.
dnl
AC_DEFUN(gcc_AC_C_CHAR_BIT,
[AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
[AC_EGREP_CPP(found,
[#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef CHAR_BIT
found
#endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
])
if test $gcc_cv_decl_char_bit = no; then
AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
[i=8
gcc_cv_c_nbby=
while test $i -lt 65; do
AC_TRY_COMPILE(,
[switch(0) {
case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
; }],
[gcc_cv_c_nbby=$i; break])
i=`expr $i + 1`
done
test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
])
if test $gcc_cv_c_nbby = failed; then
AC_MSG_ERROR(cannot determine number of bits in a byte)
else
AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
[Define as the number of bits in a byte, if \`limits.h' doesn't.])
fi
fi])
dnl Checking for long long.
dnl By Caolan McNamara <caolan@skynet.ie>
dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
dnl
AC_DEFUN([gcc_AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
[AC_TRY_COMPILE(,[long long int i;],
ac_cv_c_long_long=yes,
ac_cv_c_long_long=no)])
if test $ac_cv_c_long_long = yes; then
AC_DEFINE(HAVE_LONG_LONG, 1,
[Define if your compiler supports the \`long long' type.])
fi
AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
[AC_TRY_COMPILE(,[__int64 i;],
ac_cv_c___int64=yes,
ac_cv_c___int64=no)])
if test $ac_cv_c___int64 = yes; then
AC_DEFINE(HAVE___INT64, 1,
[Define if your compiler supports the \`__int64' type.])
fi
])
dnl Host character set probe.
dnl The EBCDIC values match the table in config/i370/i370.c;
dnl there are other versions of EBCDIC but GCC won't work with them.
dnl
AC_DEFUN([gcc_AC_C_CHARSET],
[AC_CACHE_CHECK(execution character set, ac_cv_c_charset,
[AC_EGREP_CPP(ASCII,
[#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
&& 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
ASCII
#endif], ac_cv_c_charset=ASCII)
if test x${ac_cv_c_charset+set} != xset; then
AC_EGREP_CPP(EBCDIC,
[#if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
&& 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
EBCDIC
#endif], ac_cv_c_charset=EBCDIC)
fi
if test x${ac_cv_c_charset+set} != xset; then
ac_cv_c_charset=unknown
fi])
if test $ac_cv_c_charset = unknown; then
AC_MSG_ERROR([*** Cannot determine host character set.])
elif test $ac_cv_c_charset = EBCDIC; then
AC_DEFINE(HOST_EBCDIC, 1,
[Define if the host execution character set is EBCDIC.])
fi])
dnl Utility macro used by next two tests.
dnl AC_EXAMINE_OBJECT(C source code,
dnl commands examining object file,
dnl [commands to run if compile failed]):
dnl
dnl Compile the source code to an object file; then convert it into a
dnl printable representation. All unprintable characters and
dnl asterisks (*) are replaced by dots (.). All white space is
dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
dnl output, but runs of newlines are compressed to a single newline.
dnl Finally, line breaks are forcibly inserted so that no line is
dnl longer than 80 columns and the file ends with a newline. The
dnl result of all this processing is in the file conftest.dmp, which
dnl may be examined by the commands in the second argument.
dnl
AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
[AC_LANG_SAVE
AC_LANG_C
dnl Next bit cribbed from AC_TRY_COMPILE.
cat > conftest.$ac_ext <<EOF
[#line __oline__ "configure"
#include "confdefs.h"
$1
]EOF
if AC_TRY_EVAL(ac_compile); then
od -c conftest.o |
sed ['s/^[0-7]*[ ]*/ /
s/\*/./g
s/ \\n/*/g
s/ [0-9][0-9][0-9]/./g
s/ \\[^ ]/./g'] |
tr -d '
' | tr -s '*' '
' | fold | sed '$a\
' > conftest.dmp
$2
ifelse($3, , , else
$3
)dnl
fi
rm -rf conftest*
AC_LANG_RESTORE])
dnl Host endianness probe.
dnl This tests byte-within-word endianness. GCC actually needs
dnl to know word-within-larger-object endianness. They are the
dnl same on all presently supported hosts.
dnl Differs from AC_C_BIGENDIAN in that it does not require
dnl running a program on the host, and it defines the macro we
dnl want to see.
dnl
AC_DEFUN([gcc_AC_C_COMPILE_ENDIAN],
[AC_CACHE_CHECK(byte ordering, ac_cv_c_compile_endian,
[ac_cv_c_compile_endian=unknown
gcc_AC_EXAMINE_OBJECT([
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
/* This structure must have no internal padding. */
struct {
char prefix[sizeof "\nendian:" - 1];
short word;
char postfix[2];
} tester = {
"\nendian:",
#if SIZEOF_SHORT == 4
('A' << (CHAR_BIT * 3)) | ('B' << (CHAR_BIT * 2)) |
#endif
('A' << CHAR_BIT) | 'B',
'X', '\n'
};],
[if grep 'endian:AB' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_compile_endian=big-endian
elif grep 'endian:BA' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_compile_endian=little-endian
fi])
])
if test $ac_cv_c_compile_endian = unknown; then
AC_MSG_ERROR([*** unable to determine endianness])
elif test $ac_cv_c_compile_endian = big-endian; then
AC_DEFINE(HOST_WORDS_BIG_ENDIAN, 1,
[Define if the host machine stores words of multi-word integers in
big-endian order.])
fi
])
dnl Floating point format probe.
dnl The basic concept is the same as the above: grep the object
dnl file for an interesting string. We have to watch out for
dnl rounding changing the values in the object, however; this is
dnl handled by ignoring the least significant byte of the float.
dnl
dnl Does not know about VAX G-float or C4x idiosyncratic format.
dnl It does know about PDP-10 idiosyncratic format, but this is
dnl not presently supported by GCC. S/390 "binary floating point"
dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
dnl as ASCII?)
dnl
AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
[gcc_AC_EXAMINE_OBJECT(
[/* This will not work unless sizeof(double) == 8. */
extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
/* This structure must have no internal padding. */
struct possibility {
char prefix[8];
double candidate;
char postfix[8];
};
#define C(cand) { "\nformat:", cand, ":tamrof\n" }
struct possibility table [] =
{
C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
C( 3.53802595280598432000e+18), /* D__float - VAX */
C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
};],
[if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (big-endian)'
elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (big-endian)'
elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (little-endian)'
elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (little-endian)'
elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='VAX D-float'
elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='PDP-10'
elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IBM 370 hex'
else
AC_MSG_ERROR(Unknown floating point format)
fi],
[AC_MSG_ERROR(compile failed)])
])
# IEEE is the default format. If the float endianness isn't the same
# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
# (which is a tristate: yes, no, default). This is only an issue with
# IEEE; the other formats are only supported by a few machines each,
# all with the same endianness.
format=
fbigend=
case $ac_cv_c_float_format in
'IEEE (big-endian)' )
if test $ac_cv_c_compile_endian = little-endian; then
fbigend=1
fi
;;
'IEEE (little-endian)' )
if test $ac_cv_c_compile_endian = big-endian; then
fbigend=0
fi
;;
'VAX D-float' )
format=VAX_FLOAT_FORMAT
;;
'PDP-10' )
format=PDP10_FLOAT_FORMAT
;;
'IBM 370 hex' )
format=IBM_FLOAT_FORMAT
;;
esac
if test -n "$format"; then
AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
[Define to the floating point format of the host machine, if not IEEE.])
fi
if test -n "$fbigend"; then
AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
[Define to 1 if the host machine stores floating point numbers in
memory with the word containing the sign bit at the lowest address,
or to 0 if it does it the other way around.
This macro should not be defined if the ordering is the same as for
multi-word integers.])
fi
])
#serial AM2
dnl From Bruno Haible.
AC_DEFUN([AM_ICONV],
[
dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
dnl those with the standalone portable GNU libiconv installed).
am_cv_lib_iconv_ldpath=
AC_ARG_WITH([libiconv-prefix],
[ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
for dir in `echo "$withval" | tr : ' '`; do
if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
done
])
AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
am_cv_func_iconv="no, consider installing GNU libiconv"
am_cv_lib_iconv=no
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
am_cv_func_iconv=yes)
if test "$am_cv_func_iconv" != yes; then
am_save_LIBS="$LIBS"
LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
am_cv_lib_iconv=yes
am_cv_func_iconv=yes)
LIBS="$am_save_LIBS"
fi
])
if test "$am_cv_func_iconv" = yes; then
AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
AC_MSG_CHECKING([for iconv declaration])
AC_CACHE_VAL(am_cv_proto_iconv, [
AC_TRY_COMPILE([
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
AC_MSG_RESULT([$]{ac_t:-
}[$]am_cv_proto_iconv)
AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
[Define as const if the declaration of iconv() needs const.])
fi
LIBICONV=
if test "$am_cv_lib_iconv" = yes; then
LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
fi
AC_SUBST(LIBICONV)
])
### Gettext macros begin here.
### Changes for GCC marked by 'dnl GCC LOCAL'.
### Note iconv.m4 appears above, as it's used for other reasons.
#serial AM1
dnl From Bruno Haible.
AC_DEFUN([AM_LANGINFO_CODESET],
[
AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
[AC_TRY_LINK([#include <langinfo.h>],
[char* cs = nl_langinfo(CODESET);],
am_cv_langinfo_codeset=yes,
am_cv_langinfo_codeset=no)
])
if test $am_cv_langinfo_codeset = yes; then
AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
[Define if you have <langinfo.h> and nl_langinfo(CODESET).])
fi
])
#serial 1
# This test replaces the one in autoconf.
# Currently this macro should have the same name as the autoconf macro
# because gettext's gettext.m4 (distributed in the automake package)
# still uses it. Otherwise, the use in gettext.m4 makes autoheader
# give these diagnostics:
# configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
# configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
undefine([AC_ISC_POSIX])
AC_DEFUN([AC_ISC_POSIX],
[
dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
dnl GCC LOCAL: Use AC_SEARCH_LIBS.
AC_SEARCH_LIBS(strerror, cposix)
]
)
#serial 2
# Test for the GNU C Library, version 2.1 or newer.
# From Bruno Haible.
AC_DEFUN([jm_GLIBC21],
[
AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
ac_cv_gnu_library_2_1,
[AC_EGREP_CPP([Lucky GNU user],
[
#include <features.h>
#ifdef __GNU_LIBRARY__
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
Lucky GNU user
#endif
#endif
],
ac_cv_gnu_library_2_1=yes,
ac_cv_gnu_library_2_1=no)
]
)
AC_SUBST(GLIBC21)
GLIBC21="$ac_cv_gnu_library_2_1"
]
)
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file can be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU General Public
# License or the GNU Library General Public License but which still want
# to provide support for the GNU gettext functionality.
# Please note that the actual code of the GNU gettext library is covered
# by the GNU Library General Public License, and the rest of the GNU
# gettext package package is covered by the GNU General Public License.
# They are *not* in the public domain.
# serial 2
AC_DEFUN([AM_LC_MESSAGES],
[if test $ac_cv_header_locale_h = yes; then
AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
[AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
if test $am_cv_val_LC_MESSAGES = yes; then
AC_DEFINE(HAVE_LC_MESSAGES, 1,
[Define if your <locale.h> file defines LC_MESSAGES.])
fi
fi])
# Search path for a program which passes the given test.
# Ulrich Drepper <drepper@cygnus.com>, 1996.
#
# This file can be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU General Public
# License or the GNU Library General Public License but which still want
# to provide support for the GNU gettext functionality.
# Please note that the actual code of the GNU gettext library is covered
# by the GNU Library General Public License, and the rest of the GNU
# gettext package package is covered by the GNU General Public License.
# They are *not* in the public domain.
# serial 2
dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
AC_DEFUN([AM_PATH_PROG_WITH_TEST],
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(ac_cv_path_$1,
[case "[$]$1" in
/*)
ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
;;
*)
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
for ac_dir in ifelse([$5], , $PATH, [$5]); do
test -z "$ac_dir" && ac_dir=.
if test -f $ac_dir/$ac_word; then
if [$3]; then
ac_cv_path_$1="$ac_dir/$ac_word"
break
fi
fi
done
IFS="$ac_save_ifs"
dnl If no 4th arg is given, leave the cache variable unset,
dnl so AC_PATH_PROGS will keep looking.
ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
])dnl
;;
esac])dnl
$1="$ac_cv_path_$1"
if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
AC_MSG_RESULT([$]$1)
else
AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
])
# Macro to add for using GNU gettext.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file can be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU General Public
# License or the GNU Library General Public License but which still want
# to provide support for the GNU gettext functionality.
# Please note that the actual code of the GNU gettext library is covered
# by the GNU Library General Public License, and the rest of the GNU
# gettext package package is covered by the GNU General Public License.
# They are *not* in the public domain.
# serial 10
dnl Usage: AM_WITH_NLS([TOOLSYMBOL], [NEEDSYMBOL], [LIBDIR]).
dnl If TOOLSYMBOL is specified and is 'use-libtool', then a libtool library
dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
dnl depending on --{enable,disable}-{shared,static} and on the presence of
dnl AM-DISABLE-SHARED). Otherwise, a static library
dnl $(top_builddir)/intl/libintl.a will be created.
dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
dnl implementations (in libc or libintl) without the ngettext() function
dnl will be ignored.
dnl LIBDIR is used to find the intl libraries. If empty,
dnl the value `$(top_builddir)/intl/' is used.
dnl
dnl The result of the configuration is one of three cases:
dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
dnl and used.
dnl Catalog format: GNU --> install in $(datadir)
dnl Catalog extension: .mo after installation, .gmo in source tree
dnl 2) GNU gettext has been found in the system's C library.
dnl Catalog format: GNU --> install in $(datadir)
dnl Catalog extension: .mo after installation, .gmo in source tree
dnl 3) No internationalization, always use English msgid.
dnl Catalog format: none
dnl Catalog extension: none
dnl The use of .gmo is historical (it was needed to avoid overwriting the
dnl GNU format catalogs when building on a platform with an X/Open gettext),
dnl but we keep it in order not to force irrelevant filename changes on the
dnl maintainers.
dnl
AC_DEFUN([AM_WITH_NLS],
[AC_MSG_CHECKING([whether NLS is requested])
dnl Default is enabled NLS
AC_ARG_ENABLE(nls,
[ --disable-nls do not use Native Language Support],
USE_NLS=$enableval, USE_NLS=yes)
AC_MSG_RESULT($USE_NLS)
AC_SUBST(USE_NLS)
BUILD_INCLUDED_LIBINTL=no
USE_INCLUDED_LIBINTL=no
dnl GCC LOCAL: Separate concept of link command line from dependencies.
INTLLIBS=
INTLDEPS=
dnl If we use NLS figure out what method
if test "$USE_NLS" = "yes"; then
AC_DEFINE(ENABLE_NLS, 1,
[Define to 1 if translation of program messages to the user's native language
is requested.])
AC_MSG_CHECKING([whether included gettext is requested])
AC_ARG_WITH(included-gettext,
[ --with-included-gettext use the GNU gettext library included here],
nls_cv_force_use_gnu_gettext=$withval,
nls_cv_force_use_gnu_gettext=no)
AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
dnl User does not insist on using GNU NLS library. Figure out what
dnl to use. If GNU gettext is available we use this. Else we have
dnl to fall back to GNU NLS library.
CATOBJEXT=NONE
dnl Add a version number to the cache macros.
define(gt_cv_func_gnugettext_libc, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libc])
define(gt_cv_func_gnugettext_libintl, [gt_cv_func_gnugettext]ifelse([$2], need-ngettext, 2, 1)[_libintl])
dnl GCC LOCAL: Expose presence of libintl.h to C code.
AC_CHECK_HEADER(libintl.h,
[AC_DEFINE([HAVE_LIBINTL_H], 1,
[Define if you have the <libintl.h> header file.])
AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
[AC_TRY_LINK([#include <libintl.h>
extern int _nl_msg_cat_cntr;],
[bindtextdomain ("", "");
return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
gt_cv_func_gnugettext_libc=yes,
gt_cv_func_gnugettext_libc=no)])
if test "$gt_cv_func_gnugettext_libc" != "yes"; then
AC_CACHE_CHECK([for GNU gettext in libintl],
gt_cv_func_gnugettext_libintl,
[gt_save_LIBS="$LIBS"
LIBS="$LIBS -lintl $LIBICONV"
AC_TRY_LINK([#include <libintl.h>
extern int _nl_msg_cat_cntr;],
[bindtextdomain ("", "");
return (int) gettext ("")]ifelse([$2], need-ngettext, [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr],
gt_cv_func_gnugettext_libintl=yes,
gt_cv_func_gnugettext_libintl=no)
LIBS="$gt_save_LIBS"])
fi
dnl If an already present or preinstalled GNU gettext() is found,
dnl use it. But if this macro is used in GNU gettext, and GNU
dnl gettext is already preinstalled in libintl, we update this
dnl libintl. (Cf. the install rule in intl/Makefile.in.)
if test "$gt_cv_func_gnugettext_libc" = "yes" \
|| { test "$gt_cv_func_gnugettext_libintl" = "yes" \
&& test "$PACKAGE" != gettext; }; then
AC_DEFINE(HAVE_GETTEXT, 1,
[Define if the GNU gettext() function is already present or preinstalled.])
if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
dnl If iconv() is in a separate libiconv library, then anyone
dnl linking with libintl{.a,.so} also needs to link with
dnl libiconv.
INTLLIBS="-lintl $LIBICONV"
fi
gt_save_LIBS="$LIBS"
LIBS="$LIBS $INTLLIBS"
AC_CHECK_FUNCS(dcgettext)
LIBS="$gt_save_LIBS"
dnl Search for GNU msgfmt in the PATH.
AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
[$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
dnl Search for GNU xgettext in the PATH.
AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
[$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
CATOBJEXT=.gmo
fi
])
if test "$CATOBJEXT" = "NONE"; then
dnl GNU gettext is not found in the C library.
dnl Fall back on GNU gettext library.
nls_cv_use_gnu_gettext=yes
fi
fi
if test "$nls_cv_use_gnu_gettext" = "yes"; then
dnl Mark actions used to generate GNU NLS library.
INTLOBJS="\$(GETTOBJS)"
AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
[$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1], :)
AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
[$ac_dir/$ac_word --omit-header /dev/null >/dev/null 2>&1], :)
AC_SUBST(MSGFMT)
BUILD_INCLUDED_LIBINTL=yes
USE_INCLUDED_LIBINTL=yes
CATOBJEXT=.gmo
INTLLIBS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a $LIBICONV"
INTLDEPS="ifelse([$3],[],\$(top_builddir)/intl,[$3])/libintl.ifelse([$1], use-libtool, [l], [])a"
LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
fi
dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
dnl Test whether we really found GNU msgfmt.
if test "$GMSGFMT" != ":"; then
dnl If it is no GNU msgfmt we define it as : so that the
dnl Makefiles still can work.
if $GMSGFMT --statistics /dev/null >/dev/null 2>&1; then
: ;
else
AC_MSG_RESULT(
[found msgfmt program is not GNU msgfmt; ignore it])
GMSGFMT=":"
fi
fi
dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
dnl Test whether we really found GNU xgettext.
if test "$XGETTEXT" != ":"; then
dnl If it is no GNU xgettext we define it as : so that the
dnl Makefiles still can work.
if $XGETTEXT --omit-header /dev/null >/dev/null 2>&1; then
: ;
else
AC_MSG_RESULT(
[found xgettext program is not GNU xgettext; ignore it])
XGETTEXT=":"
fi
fi
dnl We need to process the po/ directory.
POSUB=po
fi
AC_OUTPUT_COMMANDS(
[for ac_file in $CONFIG_FILES; do
# Support "outfile[:infile[:infile...]]"
case "$ac_file" in
*:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
esac
# PO directories have a Makefile.in generated from Makefile.in.in.
case "$ac_file" in */Makefile.in)
# Adjust a relative srcdir.
ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
# In autoconf-2.13 it is called $ac_given_srcdir.
# In autoconf-2.50 it is called $srcdir.
test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
case "$ac_given_srcdir" in
.) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
/*) top_srcdir="$ac_given_srcdir" ;;
*) top_srcdir="$ac_dots$ac_given_srcdir" ;;
esac
if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
rm -f "$ac_dir/POTFILES"
test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," -e "\$s/\(.*\) \\\\/\1/" < "$ac_given_srcdir/$ac_dir/POTFILES.in" > "$ac_dir/POTFILES"
test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
sed -e "/POTFILES =/r $ac_dir/POTFILES" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
fi
;;
esac
done])
dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
dnl to 'yes' because some of the testsuite requires it.
if test "$PACKAGE" = gettext; then
BUILD_INCLUDED_LIBINTL=yes
fi
dnl intl/plural.c is generated from intl/plural.y. It requires bison,
dnl because plural.y uses bison specific features. It requires at least
dnl bison-1.26 because earlier versions generate a plural.c that doesn't
dnl compile.
dnl bison is only needed for the maintainer (who touches plural.y). But in
dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
dnl the rule in general Makefile. Now, some people carelessly touch the
dnl files or have a broken "make" program, hence the plural.c rule will
dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
dnl present or too old.
AC_CHECK_PROGS([INTLBISON], [bison])
if test -z "$INTLBISON"; then
ac_verc_fail=yes
else
dnl Found it, now check the version.
AC_MSG_CHECKING([version of bison])
changequote(<<,>>)dnl
ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
changequote([,])dnl
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
esac
AC_MSG_RESULT([$ac_prog_version])
fi
if test $ac_verc_fail = yes; then
INTLBISON=:
fi
dnl GCC LOCAL: GMOFILES/POFILES removed as unnecessary.
dnl Make all variables we use known to autoconf.
AC_SUBST(BUILD_INCLUDED_LIBINTL)
AC_SUBST(USE_INCLUDED_LIBINTL)
AC_SUBST(CATALOGS)
AC_SUBST(CATOBJEXT)
AC_SUBST(INTLLIBS)
AC_SUBST(INTLDEPS)
AC_SUBST(INTLOBJS)
AC_SUBST(POSUB)
dnl GCC LOCAL: Make USE_INCLUDED_LIBINTL visible to C code.
if test $USE_INCLUDED_LIBINTL = yes; then
AC_DEFINE([USE_INCLUDED_LIBINTL], 1,
[Define to use the libintl included with this package instead of any
version in the system libraries.])
fi
dnl For backward compatibility. Some configure.ins may be using this.
nls_cv_header_intl=
nls_cv_header_libgt=
dnl For backward compatibility. Some Makefiles may be using this.
DATADIRNAME=share
AC_SUBST(DATADIRNAME)
dnl For backward compatibility. Some Makefiles may be using this.
INSTOBJEXT=.mo
AC_SUBST(INSTOBJEXT)
dnl For backward compatibility. Some Makefiles may be using this.
GENCAT=gencat
AC_SUBST(GENCAT)
])
dnl Usage: Just like AM_WITH_NLS, which see.
AC_DEFUN([AM_GNU_GETTEXT],
[AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_PROG_RANLIB])dnl
AC_REQUIRE([AC_ISC_POSIX])dnl
AC_REQUIRE([AC_HEADER_STDC])dnl
AC_REQUIRE([AC_C_CONST])dnl
AC_REQUIRE([AC_C_INLINE])dnl
AC_REQUIRE([AC_TYPE_OFF_T])dnl
AC_REQUIRE([AC_TYPE_SIZE_T])dnl
AC_REQUIRE([AC_FUNC_ALLOCA])dnl
dnl GCC LOCAL: Do not refer to AC_FUNC_MMAP, we have special needs.
dnl AC_REQUIRE([AC_FUNC_MMAP])dnl
AC_REQUIRE([jm_GLIBC21])dnl
AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
stdlib.h string.h unistd.h sys/param.h])
AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getcwd getegid geteuid \
getgid getuid mempcpy munmap putenv setenv setlocale stpcpy strchr strcasecmp \
strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
AM_ICONV
AM_LANGINFO_CODESET
AM_LC_MESSAGES
AM_WITH_NLS([$1],[$2],[$3])
dnl GCC LOCAL: The LINGUAS/ALL_LINGUAS/CATALOGS mess that was here
dnl has been torn out and replaced with this more sensible scheme.
if test "x$CATOBJEXT" != x; then
AC_MSG_CHECKING(for catalogs to be installed)
# Look for .po and .gmo files in the source directory.
CATALOGS=
XLINGUAS=
for cat in $srcdir/po/*$CATOBJEXT $srcdir/po/*.po; do
# If there aren't any .gmo files the shell will give us the
# literal string "../path/to/srcdir/po/*.gmo" which has to be
# weeded out.
case "$cat" in *\**)
continue;;
esac
# The quadruple backslash is collapsed to a double backslash
# by the backticks, then collapsed again by the double quotes,
# leaving us with one backslash in the sed expression (right
# before the dot that mustn't act as a wildcard). The dot to
# be escaped in the second expression is hiding inside CATOBJEXT.
cat=`echo $cat | sed -e "s!$srcdir/!!" -e "s!\\\\.po!$CATOBJEXT!"`
lang=`echo $cat | sed -e 's!po/!!' -e "s!\\\\$CATOBJEXT!!"`
# The user is allowed to set LINGUAS to a list of languages to
# install catalogs for. If it's empty that means "all of them."
if test "x$LINGUAS" = x; then
CATALOGS="$CATALOGS $cat"
XLINGUAS="$XLINGUAS $lang"
else
case "$LINGUAS" in *$lang*)
CATALOGS="$CATALOGS $cat"
XLINGUAS="$XLINGUAS $lang"
;;
esac
fi
done
LINGUAS="$XLINGUAS"
AC_MSG_RESULT($LINGUAS)
fi
dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
dnl Try to locate is.
MKINSTALLDIRS=
if test -n "$ac_aux_dir"; then
MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
fi
if test -z "$MKINSTALLDIRS"; then
MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
fi
AC_SUBST(MKINSTALLDIRS)
dnl Enable libtool support if the surrounding package wishes it.
INTL_LIBTOOL_SUFFIX_PREFIX=ifelse([$1], use-libtool, [l], [])
AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
])
AC_DEFUN(gcc_AC_INITFINI_ARRAY,
[AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
gcc_cv_initfinit_array, [dnl
cat > conftest.c <<EOF
static int x = -1;
int main (void) { return x; }
int foo (void) { x = 0; }
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
EOF
if AC_TRY_COMMAND([${CC-cc} -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD])
then
if ./conftest; then
gcc_cv_initfinit_array=yes
else
gcc_cv_initfinit_array=no
fi
else
gcc_cv_initfinit_array=no
fi
rm -f conftest*])
AC_SUBST(gcc_cv_initfinit_array)
if test $gcc_cv_initfinit_array = yes; then
AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
[Define .init_array/.fini_array sections are available and working.])
fi])
|