forked from reasonml-old/libffi
-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathaclocal.m4
1961 lines (1767 loc) · 67.4 KB
/
aclocal.m4
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
# generated automatically by aclocal 1.13.4 -*- Autoconf -*-
# Copyright (C) 1996-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
m4_ifndef([AC_AUTOCONF_VERSION],
[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
[m4_warning([this file was generated for autoconf 2.69.
You have another version of autoconf. It may work, but is not guaranteed to.
If you have problems, you may need to regenerate the build system entirely.
To do so, use the procedure documented by the package, typically 'autoreconf'.])])
# ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
#
# Copyright (C) 1999-2006, 2007, 2008, 2011 Free Software Foundation, Inc.
# Written by Thomas Tanner, 1999
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 18 LTDL_INIT
# LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
# ------------------------------------------
# DIRECTORY contains the libltdl sources. It is okay to call this
# function multiple times, as long as the same DIRECTORY is always given.
AC_DEFUN([LT_CONFIG_LTDL_DIR],
[AC_BEFORE([$0], [LTDL_INIT])
_$0($*)
])# LT_CONFIG_LTDL_DIR
# We break this out into a separate macro, so that we can call it safely
# internally without being caught accidentally by the sed scan in libtoolize.
m4_defun([_LT_CONFIG_LTDL_DIR],
[dnl remove trailing slashes
m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
m4_case(_LTDL_DIR,
[], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
m4_if(_ARG_DIR, [.],
[],
[m4_define([_LTDL_DIR], _ARG_DIR)
_LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
[m4_if(_ARG_DIR, _LTDL_DIR,
[],
[m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
m4_popdef([_ARG_DIR])
])# _LT_CONFIG_LTDL_DIR
# Initialise:
m4_define([_LTDL_DIR], [])
# _LT_BUILD_PREFIX
# ----------------
# If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
# to `${top_builddir}/'.
m4_define([_LT_BUILD_PREFIX],
[m4_ifdef([AC_AUTOCONF_VERSION],
[m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
[-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
[${top_build_prefix}],
[${top_builddir}/])],
[${top_build_prefix}])],
[${top_builddir}/])[]dnl
])
# LTDL_CONVENIENCE
# ----------------
# sets LIBLTDL to the link flags for the libltdl convenience library and
# LTDLINCL to the include flags for the libltdl header and adds
# --enable-ltdl-convenience to the configure arguments. Note that
# AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
# '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
# and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
# quotes!). If your package is not flat and you're not using automake,
# define top_build_prefix, top_builddir, and top_srcdir appropriately
# in your Makefiles.
AC_DEFUN([LTDL_CONVENIENCE],
[AC_BEFORE([$0], [LTDL_INIT])dnl
dnl Although the argument is deprecated and no longer documented,
dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
dnl here make sure it is the same as any other declaration of libltdl's
dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
_$0()
])# LTDL_CONVENIENCE
# AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
# now we have LT_CONFIG_LTDL_DIR:
AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
_LTDL_CONVENIENCE])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
# _LTDL_CONVENIENCE
# -----------------
# Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
m4_defun([_LTDL_CONVENIENCE],
[case $enable_ltdl_convenience in
no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
"") enable_ltdl_convenience=yes
ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
esac
LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
LTDLDEPS=$LIBLTDL
LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
AC_SUBST([LIBLTDL])
AC_SUBST([LTDLDEPS])
AC_SUBST([LTDLINCL])
# For backwards non-gettext consistent compatibility...
INCLTDL="$LTDLINCL"
AC_SUBST([INCLTDL])
])# _LTDL_CONVENIENCE
# LTDL_INSTALLABLE
# ----------------
# sets LIBLTDL to the link flags for the libltdl installable library
# and LTDLINCL to the include flags for the libltdl header and adds
# --enable-ltdl-install to the configure arguments. Note that
# AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
# is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
# available, otherwise with '${top_builddir}/', and LTDLINCL will be
# prefixed with '${top_srcdir}/' (note the single quotes!). If your
# package is not flat and you're not using automake, define top_build_prefix,
# top_builddir, and top_srcdir appropriately in your Makefiles.
# In the future, this macro may have to be called after LT_INIT.
AC_DEFUN([LTDL_INSTALLABLE],
[AC_BEFORE([$0], [LTDL_INIT])dnl
dnl Although the argument is deprecated and no longer documented,
dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
dnl here make sure it is the same as any other declaration of libltdl's
dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
_$0()
])# LTDL_INSTALLABLE
# AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
# now we have LT_CONFIG_LTDL_DIR:
AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
[_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
_LTDL_INSTALLABLE])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
# _LTDL_INSTALLABLE
# -----------------
# Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
m4_defun([_LTDL_INSTALLABLE],
[if test -f $prefix/lib/libltdl.la; then
lt_save_LDFLAGS="$LDFLAGS"
LDFLAGS="-L$prefix/lib $LDFLAGS"
AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
LDFLAGS="$lt_save_LDFLAGS"
if test x"${lt_lib_ltdl-no}" = xyes; then
if test x"$enable_ltdl_install" != xyes; then
# Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
enable_ltdl_install=no
fi
elif test x"$enable_ltdl_install" = xno; then
AC_MSG_WARN([libltdl not installed, but installation disabled])
fi
fi
# If configure.ac declared an installable ltdl, and the user didn't override
# with --disable-ltdl-install, we will install the shipped libltdl.
case $enable_ltdl_install in
no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
LIBLTDL="-lltdl"
LTDLDEPS=
LTDLINCL=
;;
*) enable_ltdl_install=yes
ac_configure_args="$ac_configure_args --enable-ltdl-install"
LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
LTDLDEPS=$LIBLTDL
LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
;;
esac
AC_SUBST([LIBLTDL])
AC_SUBST([LTDLDEPS])
AC_SUBST([LTDLINCL])
# For backwards non-gettext consistent compatibility...
INCLTDL="$LTDLINCL"
AC_SUBST([INCLTDL])
])# LTDL_INSTALLABLE
# _LTDL_MODE_DISPATCH
# -------------------
m4_define([_LTDL_MODE_DISPATCH],
[dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
m4_if(_LTDL_DIR, [],
[],
dnl if _LTDL_MODE was not set already, the default value is `subproject':
[m4_case(m4_default(_LTDL_MODE, [subproject]),
[subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
[nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
[recursive], [],
[m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
dnl Be careful not to expand twice:
m4_define([$0], [])
])# _LTDL_MODE_DISPATCH
# _LT_LIBOBJ(MODULE_NAME)
# -----------------------
# Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
# of into LIBOBJS.
AC_DEFUN([_LT_LIBOBJ], [
m4_pattern_allow([^_LT_LIBOBJS$])
_LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
])# _LT_LIBOBJS
# LTDL_INIT([OPTIONS])
# --------------------
# Clients of libltdl can use this macro to allow the installer to
# choose between a shipped copy of the ltdl sources or a preinstalled
# version of the library. If the shipped ltdl sources are not in a
# subdirectory named libltdl, the directory name must be given by
# LT_CONFIG_LTDL_DIR.
AC_DEFUN([LTDL_INIT],
[dnl Parse OPTIONS
_LT_SET_OPTIONS([$0], [$1])
dnl We need to keep our own list of libobjs separate from our parent project,
dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
dnl we look for our own LIBOBJs.
m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
m4_pushdef([AC_LIBSOURCES])
dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
m4_if(_LTDL_MODE, [],
[m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
[m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
AC_ARG_WITH([included_ltdl],
[AS_HELP_STRING([--with-included-ltdl],
[use the GNU ltdl sources included here])])
if test "x$with_included_ltdl" != xyes; then
# We are not being forced to use the included libltdl sources, so
# decide whether there is a useful installed version we can use.
AC_CHECK_HEADER([ltdl.h],
[AC_CHECK_DECL([lt_dlinterface_register],
[AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
[with_included_ltdl=no],
[with_included_ltdl=yes])],
[with_included_ltdl=yes],
[AC_INCLUDES_DEFAULT
#include <ltdl.h>])],
[with_included_ltdl=yes],
[AC_INCLUDES_DEFAULT]
)
fi
dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
dnl was called yet, then for old times' sake, we assume libltdl is in an
dnl eponymous directory:
AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
AC_ARG_WITH([ltdl_include],
[AS_HELP_STRING([--with-ltdl-include=DIR],
[use the ltdl headers installed in DIR])])
if test -n "$with_ltdl_include"; then
if test -f "$with_ltdl_include/ltdl.h"; then :
else
AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
fi
else
with_ltdl_include=no
fi
AC_ARG_WITH([ltdl_lib],
[AS_HELP_STRING([--with-ltdl-lib=DIR],
[use the libltdl.la installed in DIR])])
if test -n "$with_ltdl_lib"; then
if test -f "$with_ltdl_lib/libltdl.la"; then :
else
AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
fi
else
with_ltdl_lib=no
fi
case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
,yes,no,no,)
m4_case(m4_default(_LTDL_TYPE, [convenience]),
[convenience], [_LTDL_CONVENIENCE],
[installable], [_LTDL_INSTALLABLE],
[m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
;;
,no,no,no,)
# If the included ltdl is not to be used, then use the
# preinstalled libltdl we found.
AC_DEFINE([HAVE_LTDL], [1],
[Define this if a modern libltdl is already installed])
LIBLTDL=-lltdl
LTDLDEPS=
LTDLINCL=
;;
,no*,no,*)
AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
;;
*) with_included_ltdl=no
LIBLTDL="-L$with_ltdl_lib -lltdl"
LTDLDEPS=
LTDLINCL="-I$with_ltdl_include"
;;
esac
INCLTDL="$LTDLINCL"
# Report our decision...
AC_MSG_CHECKING([where to find libltdl headers])
AC_MSG_RESULT([$LTDLINCL])
AC_MSG_CHECKING([where to find libltdl library])
AC_MSG_RESULT([$LIBLTDL])
_LTDL_SETUP
dnl restore autoconf definition.
m4_popdef([AC_LIBOBJ])
m4_popdef([AC_LIBSOURCES])
AC_CONFIG_COMMANDS_PRE([
_ltdl_libobjs=
_ltdl_ltlibobjs=
if test -n "$_LT_LIBOBJS"; then
# Remove the extension.
_lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
_ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
_ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
done
fi
AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
])
# Only expand once:
m4_define([LTDL_INIT])
])# LTDL_INIT
# Old names:
AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIB_LTDL], [])
dnl AC_DEFUN([AC_WITH_LTDL], [])
dnl AC_DEFUN([LT_WITH_LTDL], [])
# _LTDL_SETUP
# -----------
# Perform all the checks necessary for compilation of the ltdl objects
# -- including compiler checks and header checks. This is a public
# interface mainly for the benefit of libltdl's own configure.ac, most
# other users should call LTDL_INIT instead.
AC_DEFUN([_LTDL_SETUP],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
AC_REQUIRE([LT_LIB_DLLOAD])dnl
AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
AC_REQUIRE([gl_FUNC_ARGZ])dnl
m4_require([_LT_CHECK_OBJDIR])dnl
m4_require([_LT_HEADER_DLFCN])dnl
m4_require([_LT_CHECK_DLPREOPEN])dnl
m4_require([_LT_DECL_SED])dnl
dnl Don't require this, or it will be expanded earlier than the code
dnl that sets the variables it relies on:
_LT_ENABLE_INSTALL
dnl _LTDL_MODE specific code must be called at least once:
_LTDL_MODE_DISPATCH
# In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
# the user used. This is so that ltdl.h can pick up the parent projects
# config.h file, The first file in AC_CONFIG_HEADERS must contain the
# definitions required by ltdl.c.
# FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
AC_CONFIG_COMMANDS_PRE([dnl
m4_pattern_allow([^LT_CONFIG_H$])dnl
m4_ifset([AH_HEADER],
[LT_CONFIG_H=AH_HEADER],
[m4_ifset([AC_LIST_HEADERS],
[LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
[])])])
AC_SUBST([LT_CONFIG_H])
AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
[], [], [AC_INCLUDES_DEFAULT])
AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
m4_pattern_allow([LT_LIBEXT])dnl
AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
name=
eval "lt_libprefix=\"$libname_spec\""
m4_pattern_allow([LT_LIBPREFIX])dnl
AC_DEFINE_UNQUOTED([LT_LIBPREFIX],["$lt_libprefix"],[The archive prefix])
name=ltdl
eval "LTDLOPEN=\"$libname_spec\""
AC_SUBST([LTDLOPEN])
])# _LTDL_SETUP
# _LT_ENABLE_INSTALL
# ------------------
m4_define([_LT_ENABLE_INSTALL],
[AC_ARG_ENABLE([ltdl-install],
[AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
case ,${enable_ltdl_install},${enable_ltdl_convenience} in
*yes*) ;;
*) enable_ltdl_convenience=yes ;;
esac
m4_ifdef([AM_CONDITIONAL],
[AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
])# _LT_ENABLE_INSTALL
# LT_SYS_DLOPEN_DEPLIBS
# ---------------------
AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
[lt_cv_sys_dlopen_deplibs],
[# PORTME does your system automatically load deplibs for dlopen?
# or its logical equivalent (e.g. shl_load for HP-UX < 11)
# For now, we just catch OSes we know something about -- in the
# future, we'll try test this programmatically.
lt_cv_sys_dlopen_deplibs=unknown
case $host_os in
aix3*|aix4.1.*|aix4.2.*)
# Unknown whether this is true for these versions of AIX, but
# we want this `case' here to explicitly catch those versions.
lt_cv_sys_dlopen_deplibs=unknown
;;
aix[[4-9]]*)
lt_cv_sys_dlopen_deplibs=yes
;;
amigaos*)
case $host_cpu in
powerpc)
lt_cv_sys_dlopen_deplibs=no
;;
esac
;;
darwin*)
# Assuming the user has installed a libdl from somewhere, this is true
# If you are looking for one http://www.opendarwin.org/projects/dlcompat
lt_cv_sys_dlopen_deplibs=yes
;;
freebsd* | dragonfly*)
lt_cv_sys_dlopen_deplibs=yes
;;
gnu* | linux* | k*bsd*-gnu | kopensolaris*-gnu)
# GNU and its variants, using gnu ld.so (Glibc)
lt_cv_sys_dlopen_deplibs=yes
;;
hpux10*|hpux11*)
lt_cv_sys_dlopen_deplibs=yes
;;
interix*)
lt_cv_sys_dlopen_deplibs=yes
;;
irix[[12345]]*|irix6.[[01]]*)
# Catch all versions of IRIX before 6.2, and indicate that we don't
# know how it worked for any of those versions.
lt_cv_sys_dlopen_deplibs=unknown
;;
irix*)
# The case above catches anything before 6.2, and it's known that
# at 6.2 and later dlopen does load deplibs.
lt_cv_sys_dlopen_deplibs=yes
;;
netbsd*)
lt_cv_sys_dlopen_deplibs=yes
;;
openbsd*)
lt_cv_sys_dlopen_deplibs=yes
;;
osf[[1234]]*)
# dlopen did load deplibs (at least at 4.x), but until the 5.x series,
# it did *not* use an RPATH in a shared library to find objects the
# library depends on, so we explicitly say `no'.
lt_cv_sys_dlopen_deplibs=no
;;
osf5.0|osf5.0a|osf5.1)
# dlopen *does* load deplibs and with the right loader patch applied
# it even uses RPATH in a shared library to search for shared objects
# that the library depends on, but there's no easy way to know if that
# patch is installed. Since this is the case, all we can really
# say is unknown -- it depends on the patch being installed. If
# it is, this changes to `yes'. Without it, it would be `no'.
lt_cv_sys_dlopen_deplibs=unknown
;;
osf*)
# the two cases above should catch all versions of osf <= 5.1. Read
# the comments above for what we know about them.
# At > 5.1, deplibs are loaded *and* any RPATH in a shared library
# is used to find them so we can finally say `yes'.
lt_cv_sys_dlopen_deplibs=yes
;;
qnx*)
lt_cv_sys_dlopen_deplibs=yes
;;
solaris*)
lt_cv_sys_dlopen_deplibs=yes
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
esac
])
if test "$lt_cv_sys_dlopen_deplibs" != yes; then
AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
[Define if the OS needs help to load dependent libraries for dlopen().])
fi
])# LT_SYS_DLOPEN_DEPLIBS
# Old name:
AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
# LT_SYS_MODULE_EXT
# -----------------
AC_DEFUN([LT_SYS_MODULE_EXT],
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
AC_CACHE_CHECK([which extension is used for runtime loadable modules],
[libltdl_cv_shlibext],
[
module=yes
eval libltdl_cv_shlibext=$shrext_cmds
module=no
eval libltdl_cv_shrext=$shrext_cmds
])
if test -n "$libltdl_cv_shlibext"; then
m4_pattern_allow([LT_MODULE_EXT])dnl
AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
[Define to the extension used for runtime loadable modules, say, ".so".])
fi
if test "$libltdl_cv_shrext" != "$libltdl_cv_shlibext"; then
m4_pattern_allow([LT_SHARED_EXT])dnl
AC_DEFINE_UNQUOTED([LT_SHARED_EXT], ["$libltdl_cv_shrext"],
[Define to the shared library suffix, say, ".dylib".])
fi
])# LT_SYS_MODULE_EXT
# Old name:
AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
# LT_SYS_MODULE_PATH
# ------------------
AC_DEFUN([LT_SYS_MODULE_PATH],
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
AC_CACHE_CHECK([which variable specifies run-time module search path],
[lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
if test -n "$lt_cv_module_path_var"; then
m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
[Define to the name of the environment variable that determines the run-time module search path.])
fi
])# LT_SYS_MODULE_PATH
# Old name:
AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
# LT_SYS_DLSEARCH_PATH
# --------------------
AC_DEFUN([LT_SYS_DLSEARCH_PATH],
[m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
AC_CACHE_CHECK([for the default library search path],
[lt_cv_sys_dlsearch_path],
[lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
if test -n "$lt_cv_sys_dlsearch_path"; then
sys_dlsearch_path=
for dir in $lt_cv_sys_dlsearch_path; do
if test -z "$sys_dlsearch_path"; then
sys_dlsearch_path="$dir"
else
sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
fi
done
m4_pattern_allow([LT_DLSEARCH_PATH])dnl
AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
[Define to the system default library search path.])
fi
])# LT_SYS_DLSEARCH_PATH
# Old name:
AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
# _LT_CHECK_DLPREOPEN
# -------------------
m4_defun([_LT_CHECK_DLPREOPEN],
[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
[libltdl_cv_preloaded_symbols],
[if test -n "$lt_cv_sys_global_symbol_pipe"; then
libltdl_cv_preloaded_symbols=yes
else
libltdl_cv_preloaded_symbols=no
fi
])
if test x"$libltdl_cv_preloaded_symbols" = xyes; then
AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
[Define if libtool can extract symbol lists from object files.])
fi
])# _LT_CHECK_DLPREOPEN
# LT_LIB_DLLOAD
# -------------
AC_DEFUN([LT_LIB_DLLOAD],
[m4_pattern_allow([^LT_DLLOADERS$])
LT_DLLOADERS=
AC_SUBST([LT_DLLOADERS])
AC_LANG_PUSH([C])
LIBADD_DLOPEN=
AC_SEARCH_LIBS([dlopen], [dl],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.])
if test "$ac_cv_search_dlopen" != "none required" ; then
LIBADD_DLOPEN="-ldl"
fi
libltdl_cv_lib_dl_dlopen="yes"
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
# include <dlfcn.h>
#endif
]], [[dlopen(0, 0);]])],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.])
libltdl_cv_func_dlopen="yes"
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
[AC_CHECK_LIB([svld], [dlopen],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.])
LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
then
lt_save_LIBS="$LIBS"
LIBS="$LIBS $LIBADD_DLOPEN"
AC_CHECK_FUNCS([dlerror])
LIBS="$lt_save_LIBS"
fi
AC_SUBST([LIBADD_DLOPEN])
LIBADD_SHL_LOAD=
AC_CHECK_FUNC([shl_load],
[AC_DEFINE([HAVE_SHL_LOAD], [1],
[Define if you have the shl_load function.])
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
[AC_CHECK_LIB([dld], [shl_load],
[AC_DEFINE([HAVE_SHL_LOAD], [1],
[Define if you have the shl_load function.])
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
LIBADD_SHL_LOAD="-ldld"])])
AC_SUBST([LIBADD_SHL_LOAD])
case $host_os in
darwin[[1567]].*)
# We only want this for pre-Mac OS X 10.4.
AC_CHECK_FUNC([_dyld_func_lookup],
[AC_DEFINE([HAVE_DYLD], [1],
[Define if you have the _dyld_func_lookup function.])
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
;;
beos*)
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
;;
cygwin* | mingw* | os2* | pw32*)
AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
;;
esac
AC_CHECK_LIB([dld], [dld_link],
[AC_DEFINE([HAVE_DLD], [1],
[Define if you have the GNU dld library.])
LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
AC_SUBST([LIBADD_DLD_LINK])
m4_pattern_allow([^LT_DLPREOPEN$])
LT_DLPREOPEN=
if test -n "$LT_DLLOADERS"
then
for lt_loader in $LT_DLLOADERS; do
LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
done
AC_DEFINE([HAVE_LIBDLLOADER], [1],
[Define if libdlloader will be built on this platform])
fi
AC_SUBST([LT_DLPREOPEN])
dnl This isn't used anymore, but set it for backwards compatibility
LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
AC_SUBST([LIBADD_DL])
AC_LANG_POP
])# LT_LIB_DLLOAD
# Old name:
AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_DLLIB], [])
# LT_SYS_SYMBOL_USCORE
# --------------------
# does the compiler prefix global symbols with an underscore?
AC_DEFUN([LT_SYS_SYMBOL_USCORE],
[m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
AC_CACHE_CHECK([for _ prefix in compiled symbols],
[lt_cv_sys_symbol_underscore],
[lt_cv_sys_symbol_underscore=no
cat > conftest.$ac_ext <<_LT_EOF
void nm_test_func(){}
int main(){nm_test_func;return 0;}
_LT_EOF
if AC_TRY_EVAL(ac_compile); then
# Now try to grab the symbols.
ac_nlist=conftest.nm
if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
# See whether the symbols have a leading underscore.
if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
lt_cv_sys_symbol_underscore=yes
else
if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
:
else
echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
fi
fi
else
echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
fi
else
echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
cat conftest.c >&AS_MESSAGE_LOG_FD
fi
rm -rf conftest*
])
sys_symbol_underscore=$lt_cv_sys_symbol_underscore
AC_SUBST([sys_symbol_underscore])
])# LT_SYS_SYMBOL_USCORE
# Old name:
AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
# LT_FUNC_DLSYM_USCORE
# --------------------
AC_DEFUN([LT_FUNC_DLSYM_USCORE],
[AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
if test x"$lt_cv_sys_symbol_underscore" = xyes; then
if test x"$libltdl_cv_func_dlopen" = xyes ||
test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
[libltdl_cv_need_uscore],
[libltdl_cv_need_uscore=unknown
save_LIBS="$LIBS"
LIBS="$LIBS $LIBADD_DLOPEN"
_LT_TRY_DLOPEN_SELF(
[libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
[], [libltdl_cv_need_uscore=cross])
LIBS="$save_LIBS"
])
fi
fi
if test x"$libltdl_cv_need_uscore" = xyes; then
AC_DEFINE([NEED_USCORE], [1],
[Define if dlsym() requires a leading underscore in symbol names.])
fi
])# LT_FUNC_DLSYM_USCORE
# Old name:
AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])
# Copyright (C) 2002-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_AUTOMAKE_VERSION(VERSION)
# ----------------------------
# Automake X.Y traces this macro to ensure aclocal.m4 has been
# generated from the m4 files accompanying Automake X.Y.
# (This private macro should not be called outside this file.)
AC_DEFUN([AM_AUTOMAKE_VERSION],
[am__api_version='1.13'
dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
dnl require some minimum version. Point them to the right macro.
m4_if([$1], [1.13.4], [],
[AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
])
# _AM_AUTOCONF_VERSION(VERSION)
# -----------------------------
# aclocal traces this macro to find the Autoconf version.
# This is a private macro too. Using m4_define simplifies
# the logic in aclocal, which can simply ignore this definition.
m4_define([_AM_AUTOCONF_VERSION], [])
# AM_SET_CURRENT_AUTOMAKE_VERSION
# -------------------------------
# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
[AM_AUTOMAKE_VERSION([1.13.4])dnl
m4_ifndef([AC_AUTOCONF_VERSION],
[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
# Figure out how to run the assembler. -*- Autoconf -*-
# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_PROG_AS
# ----------
AC_DEFUN([AM_PROG_AS],
[# By default we simply use the C compiler to build assembly code.
AC_REQUIRE([AC_PROG_CC])
test "${CCAS+set}" = set || CCAS=$CC
test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
AC_ARG_VAR([CCAS], [assembler compiler command (defaults to CC)])
AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
_AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
])
# AM_AUX_DIR_EXPAND -*- Autoconf -*-
# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
# $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
#
# Of course, Automake must honor this variable whenever it calls a
# tool from the auxiliary directory. The problem is that $srcdir (and
# therefore $ac_aux_dir as well) can be either absolute or relative,
# depending on how configure is run. This is pretty annoying, since
# it makes $ac_aux_dir quite unusable in subdirectories: in the top
# source directory, any form will work fine, but in subdirectories a
# relative path needs to be adjusted first.
#
# $ac_aux_dir/missing
# fails when called from a subdirectory if $ac_aux_dir is relative
# $top_srcdir/$ac_aux_dir/missing
# fails if $ac_aux_dir is absolute,
# fails when called from a subdirectory in a VPATH build with
# a relative $ac_aux_dir
#
# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
# are both prefixed by $srcdir. In an in-source build this is usually
# harmless because $srcdir is '.', but things will broke when you
# start a VPATH build or use an absolute $srcdir.
#
# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
# and then we would define $MISSING as
# MISSING="\${SHELL} $am_aux_dir/missing"
# This will work as long as MISSING is not called from configure, because
# unfortunately $(top_srcdir) has no meaning in configure.
# However there are other variables, like CC, which are often used in
# configure, and could therefore not use this "fixed" $ac_aux_dir.
#
# Another solution, used here, is to always expand $ac_aux_dir to an
# absolute PATH. The drawback is that using absolute paths prevent a
# configured tree to be moved without reconfiguration.
AC_DEFUN([AM_AUX_DIR_EXPAND],
[dnl Rely on autoconf to set up CDPATH properly.
AC_PREREQ([2.50])dnl
# expand $ac_aux_dir to an absolute path
am_aux_dir=`cd $ac_aux_dir && pwd`
])
# AM_CONDITIONAL -*- Autoconf -*-
# Copyright (C) 1997-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# AM_CONDITIONAL(NAME, SHELL-CONDITION)
# -------------------------------------
# Define a conditional.
AC_DEFUN([AM_CONDITIONAL],
[AC_PREREQ([2.52])dnl
m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
AC_SUBST([$1_TRUE])dnl
AC_SUBST([$1_FALSE])dnl
_AM_SUBST_NOTMAKE([$1_TRUE])dnl
_AM_SUBST_NOTMAKE([$1_FALSE])dnl
m4_define([_AM_COND_VALUE_$1], [$2])dnl
if $2; then
$1_TRUE=
$1_FALSE='#'
else
$1_TRUE='#'
$1_FALSE=
fi
AC_CONFIG_COMMANDS_PRE(
[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
AC_MSG_ERROR([[conditional "$1" was never defined.
Usually this means the macro was only invoked conditionally.]])
fi])])
# Copyright (C) 1999-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
# written in clear, in which case automake, when reading aclocal.m4,
# will think it sees a *use*, and therefore will trigger all it's
# C support machinery. Also note that it means that autoscan, seeing
# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
# _AM_DEPENDENCIES(NAME)
# ----------------------
# See how the compiler implements dependency checking.
# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".