forked from jedisct1/libsodium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
configure.ac
1003 lines (898 loc) · 31.8 KB
/
configure.ac
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
AC_PREREQ([2.69])
AC_INIT([libsodium],[1.0.21],[https://github.com/jedisct1/libsodium/issues],[libsodium],[https://libsodium.org])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_SRCDIR([src/libsodium/sodium/version.c])
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([1.11 dist-bzip2 tar-ustar foreign subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AM_MAINTAINER_MODE
AM_DEP_TRACK
AC_SUBST(VERSION)
SODIUM_LIBRARY_VERSION_MAJOR=28
SODIUM_LIBRARY_VERSION_MINOR=0
DLL_VERSION=28
SODIUM_LIBRARY_VERSION=28:0:0
# | | |
# +------+ | +---+
# | | |
# current:revision:age
# | | |
# | | +- increment if interfaces have been added
# | | set to zero if interfaces have been removed
# | | or changed
# | +- increment if source code has changed
# | set to zero if current is incremented
# +- increment if interfaces have been added, removed or changed
AC_SUBST(SODIUM_LIBRARY_VERSION_MAJOR)
AC_SUBST(SODIUM_LIBRARY_VERSION_MINOR)
AC_SUBST(SODIUM_LIBRARY_VERSION)
AC_SUBST(DLL_VERSION)
AC_LANG_ASSERT(C)
LX_CFLAGS=${CFLAGS-NONE}
PKGCONFIG_LIBS_PRIVATE=""
dnl Path check
AS_IF([pwd | fgrep ' ' > /dev/null 2>&1],
[AC_MSG_ERROR([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])]
)
sodium_CFLAGS=${CFLAGS+set}
: ${CFLAGS=""}
AC_PROG_CC
AM_PROG_AS
AC_USE_SYSTEM_EXTENSIONS
dnl Default optimization flags
if test "$sodium_CFLAGS" != "set" ; then
AX_CHECK_COMPILE_FLAG([-O3], [CFLAGS="$CFLAGS -O3"],
[AX_CHECK_COMPILE_FLAG([-O2], [CFLAGS="$CFLAGS -O2"],
[AX_CHECK_COMPILE_FLAG([-O1], [CFLAGS="$CFLAGS -O1"],
[AX_CHECK_COMPILE_FLAG([-O], [CFLAGS="$CFLAGS -O"])])])])
fi
dnl Switches
AC_ARG_ENABLE(ssp,
[AS_HELP_STRING(--disable-ssp,Do not compile with -fstack-protector)],
[
AS_IF([test "x$enableval" = "xno"], [
enable_ssp="no"
], [
enable_ssp="yes"
])
],
[
enable_ssp="yes"
])
AC_ARG_ENABLE(asm,
[AS_HELP_STRING(--disable-asm,[Do not compile assembly code -- As a side effect, this disables CPU-specific implementations on non-Windows platforms. Only for use with targets such as WebAssembly.])],
[
AS_IF([test "x$enableval" = "xno"], [
enable_asm="no"
], [
enable_asm="yes"
])
],
[
enable_asm="yes"
])
AS_IF([test "x$EMSCRIPTEN" != "x"], [
AX_CHECK_COMPILE_FLAG([-s ASSERTIONS=0], [
enable_asm="no"
AC_MSG_WARN([compiling to JavaScript - asm implementations disabled])
], [
AC_MSG_WARN([EMSCRIPTEN environment variable defined, but emcc doesn\'t appear to be used - Assuming compilation to native code])
CFLAGS="$CFLAGS -U__EMSCRIPTEN__"
unset EMSCRIPTEN
])
])
AC_ARG_ENABLE(pie,
[AS_HELP_STRING(--disable-pie,Do not produce position independent executables)],
enable_pie=$enableval, enable_pie="maybe")
AS_CASE([$host_os], [mingw*|cygwin*|msys|eabi*], [enable_pie="no"])
AC_ARG_ENABLE(blocking-random,
[AS_HELP_STRING(--enable-blocking-random,Enable this switch only if /dev/urandom is totally broken on the target platform)],
[
AS_IF([test "x$enableval" = "xyes"], [
AC_DEFINE([USE_BLOCKING_RANDOM], [1], [/dev/urandom is insecure on the target platform])
])
])
AC_ARG_ENABLE(minimal,
[AS_HELP_STRING(--enable-minimal,
[Only compile the minimum set of functions required for the high-level API])],
[
AS_IF([test "x$enableval" = "xyes"], [
enable_minimal="yes"
SODIUM_LIBRARY_MINIMAL_DEF="#define SODIUM_LIBRARY_MINIMAL 1"
AC_DEFINE([MINIMAL], [1], [Define for a minimal build, without deprecated functions and functions that high-level APIs depend on])
], [
enable_minimal="no"
])
],
[
enable_minimal="no"
])
AM_CONDITIONAL([MINIMAL], [test x$enable_minimal = xyes])
AC_SUBST(SODIUM_LIBRARY_MINIMAL_DEF)
AC_ARG_WITH(pthreads, AS_HELP_STRING([--with-pthreads],
[use pthreads library, or --without-pthreads to disable threading support]),
[ ], [withval="yes"])
AS_IF([test "x$withval" = "xyes"], [
AX_PTHREAD([
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <pthread.h>
]], [[
pthread_mutex_t mutex;
pthread_mutex_lock(&mutex);
pthread_mutex_unlock(&mutex)
]]
)], [
AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files])
with_threads="yes"
LIBS="$PTHREAD_LIBS $LIBS"
PKGCONFIG_LIBS_PRIVATE="$PTHREAD_LIBS $PTHREAD_CFLAGS $PKGCONFIG_LIBS_PRIVATE"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
CC="$PTHREAD_CC"
])
],
[ AC_MSG_NOTICE(pthread mutexes are not available) ]
)
], [with_threads="no"])
AC_ARG_WITH(safecode,
[AS_HELP_STRING(--with-safecode,For maintainers only - please do not use)],
[AS_IF([test "x$withval" = "xyes"], [
AC_ARG_VAR([SAFECODE_HOME], [set to the safecode base directory])
: ${SAFECODE_HOME:=/opt/safecode}
LDFLAGS="$LDFLAGS -L${SAFECODE_HOME}/lib"
LIBS="$LIBS -lsc_dbg_rt -lpoolalloc_bitmap -lstdc++"
CFLAGS="$CFLAGS -fmemsafety"
])
])
AC_ARG_WITH(ctgrind,
[AS_HELP_STRING(--with-ctgrind,For maintainers only - please do not use)],
[AS_IF([test "x$withval" = "xyes"], [
AC_CHECK_LIB(ctgrind, ct_poison)
])
])
AC_ARG_ENABLE(retpoline,
[AS_HELP_STRING(--enable-retpoline,Use return trampolines for indirect calls)],
[AS_IF([test "x$enableval" = "xyes"], [
AX_CHECK_COMPILE_FLAG([-mindirect-branch=thunk-inline],
[CFLAGS="$CFLAGS -mindirect-branch=thunk-inline"],
[AX_CHECK_COMPILE_FLAG([-mretpoline], [CFLAGS="$CFLAGS -mretpoline"])]
)
AX_CHECK_COMPILE_FLAG([-mindirect-branch-register])
])
])
ENABLE_CWFLAGS=no
AC_ARG_ENABLE(debug,
[AS_HELP_STRING(--enable-debug,For maintainers only - please do not use)],
[
AS_IF([test "x$enableval" = "xyes"], [
AS_IF([test "x$LX_CFLAGS" = "xNONE"], [
nxflags=""
for flag in `echo $CFLAGS`; do
AS_CASE([$flag],
[-O*], [ ],
[-g*], [ ],
[*], [AS_VAR_APPEND([nxflags], [" $flag"])])
done
CFLAGS="$nxflags -O -g3"
])
ENABLE_CWFLAGS=yes
CPPFLAGS="$CPPFLAGS -DDEBUG=1 -U_FORTIFY_SOURCE"
])
])
AC_ARG_ENABLE(opt,
[AS_HELP_STRING(--enable-opt,Optimize for the native CPU - The resulting library will be faster but not portable)],
[
AS_IF([test "x$enableval" = "xyes"], [
AX_CHECK_COMPILE_FLAG([-ftree-vectorize], [CFLAGS="$CFLAGS -ftree-vectorize"])
AX_CHECK_COMPILE_FLAG([-ftree-slp-vectorize], [CFLAGS="$CFLAGS -ftree-slp-vectorize"])
AX_CHECK_COMPILE_FLAG([-fomit-frame-pointer], [CFLAGS="$CFLAGS -fomit-frame-pointer"])
AX_CHECK_COMPILE_FLAG([-march=native], [CFLAGS="$CFLAGS -march=native"])
AX_CHECK_COMPILE_FLAG([-mtune=native], [CFLAGS="$CFLAGS -mtune=native"])
])
])
AC_SUBST(MAINT)
AC_SUBST(PKGCONFIG_LIBS_PRIVATE)
AX_VALGRIND_CHECK
dnl Checks
AC_C_VARARRAYS
AC_CHECK_DEFINE([__wasi__], [WASI="yes"], [])
AS_CASE([$host_os], [linux-gnu], [AX_ADD_FORTIFY_SOURCE], [ ])
AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],
[CFLAGS="$CFLAGS -fvisibility=hidden"])
AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*|eabi*], [ ], [
AX_CHECK_COMPILE_FLAG([-fPIC], [CFLAGS="$CFLAGS -fPIC"])
])
AS_IF([test "$enable_pie" != "no"],[
AX_CHECK_COMPILE_FLAG([-fPIE], [
AX_CHECK_LINK_FLAG([-pie], [
[CFLAGS="$CFLAGS -fPIE"
LDFLAGS="$LDFLAGS -pie"]
])
])
])
AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"])
AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"], [
AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"])
])
AS_IF([test "$GCC" = "yes" ], [
AS_CASE([$host_cpu],
[i?86|amd64|x86_64], [
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([
#if !defined(__clang__) && defined(__GNUC__) && ((__GNUC__ << 8) | __GNUC_MINOR__) < 0x403
# error old gcc
#endif
int main(void) { return 0; }
])],,[
AX_CHECK_COMPILE_FLAG([-flax-vector-conversions], [CFLAGS="$CFLAGS -flax-vector-conversions"])
])
]
)
])
LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS"
LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION"
AC_ARG_ENABLE(soname-versions,
[AS_HELP_STRING([--enable-soname-versions], [enable soname versions (must be disabled for Android) (default: enabled)])],
[
AS_IF([test "x$enableval" = "xno"], [
LIBTOOL_EXTRA_FLAGS="$LIBTOOL_OLD_FLAGS -avoid-version"
])
]
)
AS_CASE([$host_os],
[cygwin*|mingw*|msys|pw32*|cegcc*], [
AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])
AX_CHECK_LINK_FLAG([-Wl,--high-entropy-va], [LDFLAGS="$LDFLAGS -Wl,--high-entropy-va"])
AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"])
])
AS_CASE([$host_os],
[cygwin*|mingw*|msys|pw32*|cegcc*|eabi*], [
AX_CHECK_COMPILE_FLAG([-fno-asynchronous-unwind-tables], [
[CFLAGS="$CFLAGS -fno-asynchronous-unwind-tables"]
])
])
AS_IF([test "x$enable_ssp" != "xno"],[
AS_CASE([$host_os],
[cygwin*|mingw*|msys|pw32*|cegcc*|haiku|none|eabi*], [ ],
[*], [
AX_CHECK_COMPILE_FLAG([-fstack-protector], [
AX_CHECK_LINK_FLAG([-fstack-protector],
[CFLAGS="$CFLAGS -fstack-protector"]
)
])
])
])
AX_CHECK_COMPILE_FLAG([$CFLAGS -Wall], [CWFLAGS="$CFLAGS -Wall"])
AX_CHECK_COMPILE_FLAG([$CFLAGS -Wno-deprecated-declarations], [CFLAGS="$CFLAGS -Wno-deprecated-declarations"])
AX_CHECK_COMPILE_FLAG([$CFLAGS -Wno-unknown-pragmas], [CFLAGS="$CFLAGS -Wno-unknown-pragmas"])
AC_ARG_VAR([CWFLAGS], [compilation flags for generating extra warnings])
AC_MSG_CHECKING(for clang)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
#ifndef __clang__
#error Not clang
#endif
]])],
[AC_MSG_RESULT(yes)
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-warning-option],
[CWFLAGS="$CWFLAGS -Wno-unknown-warning-option"])
],
[AC_MSG_RESULT(no)
])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wextra], [CWFLAGS="$WCFLAGS -Wextra"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Warray-bounds], [CWFLAGS="$CWFLAGS -Warray-bounds"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wbad-function-cast], [CWFLAGS="$CWFLAGS -Wbad-function-cast"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wcast-qual], [CWFLAGS="$CWFLAGS -Wcast-qual"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wdiv-by-zero], [CWFLAGS="$CWFLAGS -Wdiv-by-zero"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-branches], [CWFLAGS="$CWFLAGS -Wduplicated-branches"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-cond], [CWFLAGS="$CWFLAGS -Wduplicated-cond"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wfloat-equal], [CWFLAGS="$CWFLAGS -Wfloat-equal"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wformat=2], [CWFLAGS="$CWFLAGS -Wformat=2"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wlogical-op], [CWFLAGS="$CWFLAGS -Wlogical-op"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmaybe-uninitialized], [CWFLAGS="$CWFLAGS -Wmaybe-uninitialized"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmisleading-indentation], [CWFLAGS="$CWFLAGS -Wmisleading-indentation"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-declarations], [CWFLAGS="$CWFLAGS -Wmissing-declarations"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-prototypes], [CWFLAGS="$CWFLAGS -Wmissing-prototypes"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnested-externs], [CWFLAGS="$CWFLAGS -Wnested-externs"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-type-limits], [CWFLAGS="$CWFLAGS -Wno-type-limits"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-pragmas], [CWFLAGS="$CWFLAGS -Wno-unknown-pragmas"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnormalized=id], [CWFLAGS="$CWFLAGS -Wnormalized=id"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnull-dereference], [CWFLAGS="$CWFLAGS -Wnull-dereference"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wold-style-declaration], [CWFLAGS="$CWFLAGS -Wold-style-declaration"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wpointer-arith], [CWFLAGS="$CWFLAGS -Wpointer-arith"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wredundant-decls], [CWFLAGS="$CWFLAGS -Wredundant-decls"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wrestrict], [CWFLAGS="$CWFLAGS -Wrestrict"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wshorten-64-to-32], [CWFLAGS="$CWFLAGS -Wshorten-64-to-32"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wsometimes-uninitialized], [CWFLAGS="$CWFLAGS -Wsometimes-uninitialized"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wstrict-prototypes], [CWFLAGS="$CWFLAGS -Wstrict-prototypes"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wswitch-enum], [CWFLAGS="$CWFLAGS -Wswitch-enum"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wvariable-decl], [CWFLAGS="$CWFLAGS -Wvariable-decl"])
AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wwrite-strings], [CWFLAGS="$CWFLAGS -Wwrite-strings"])
AS_IF([test "x$EMSCRIPTEN" = "x"], [
AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"])
])
AX_CHECK_CATCHABLE_SEGV
AX_CHECK_CATCHABLE_ABRT
AS_IF([test "x$with_threads" = "xyes"], [
AX_TLS([AC_MSG_RESULT(thread local storage is supported)
AX_CHECK_COMPILE_FLAG([-ftls-model=local-dynamic],
[CFLAGS="$CFLAGS -ftls-model=local-dynamic"])],
[AC_MSG_RESULT(thread local storage is not supported)]) ])
LT_INIT
AC_SUBST(LIBTOOL_DEPS)
AC_ARG_VAR([AR], [path to the ar utility])
AC_CHECK_TOOL([AR], [ar], [ar])
dnl Checks for headers and codegen feature flags
target_cpu_aarch64=no
AC_MSG_CHECKING(for ARM64 target)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([
#ifndef __aarch64__
#error Not aarch64
#endif
#include <arm_neon.h>
], [(void) 0])],
[AC_MSG_RESULT(yes)
target_cpu_aarch64=yes],
[AC_MSG_RESULT(no)
target_cpu_aarch64=no])
AS_IF([test "x$EMSCRIPTEN" = "x"], [
AS_IF([test "x$target_cpu_aarch64" = "xyes"], [
have_armcrypto=no
AC_MSG_CHECKING(for ARM crypto instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifndef __ARM_FEATURE_CRYPTO
# define __ARM_FEATURE_CRYPTO 1
#endif
#ifndef __ARM_FEATURE_AES
# define __ARM_FEATURE_AES 1
#endif
#include <arm_neon.h>
#ifdef __clang__
# pragma clang attribute push(__attribute__((target("neon,crypto,aes"))), apply_to = function)
#elif defined(__GNUC__)
# pragma GCC target("+simd+crypto")
#endif
]], [[
int64x2_t x = { 0, 0 };
vaeseq_u8(vmovq_n_u8(0), vmovq_n_u8(0));
vmull_high_p64(vreinterpretq_p64_s64(x), vreinterpretq_p64_s64(x));
#ifdef __clang__
# pragma clang attribute pop
#endif
(void) 0
]])],
[
AC_MSG_RESULT(yes)
have_armcrypto=yes
],
[
AC_MSG_RESULT(no)
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-march=armv8-a+crypto+aes], [
CFLAGS="$CFLAGS -march=armv8-a+crypto+aes"
AC_MSG_CHECKING(for ARM crypto instructions set with -march=armv8-a+crypto+aes)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef __clang__
# pragma clang attribute push(__attribute__((target("neon,crypto,aes"))), apply_to = function)
#elif defined(__GNUC__)
# pragma GCC target("+simd+crypto")
#endif
#ifndef __ARM_FEATURE_CRYPTO
# define __ARM_FEATURE_CRYPTO 1
#endif
#ifndef __ARM_FEATURE_AES
# define __ARM_FEATURE_AES 1
#endif
#include <arm_neon.h>
]], [[
int64x2_t x = { 0, 0 };
vaeseq_u8(vmovq_n_u8(0), vmovq_n_u8(0));
vmull_high_p64(vreinterpretq_p64_s64(x), vreinterpretq_p64_s64(x));
#ifdef __clang__
# pragma clang attribute pop
#endif
(void) 0
]])],
[
AC_MSG_RESULT(yes - with addition of -march=armv8-a+crypto+aes)
have_armcrypto=yes
CFLAGS_ARMCRYPTO="-march=armv8-a+crypto+aes"
],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
])
])
AS_IF([test "$have_armcrypto" = "yes"],[AC_DEFINE([HAVE_ARMCRYPTO], [1], [ARM crypto extensions are available])])
])
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS="$CFLAGS -mmmx"])
AC_MSG_CHECKING(for MMX instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("mmx")
#include <mmintrin.h>
]], [[ __m64 x = _mm_setzero_si64(); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_MMINTRIN_H], [1], [mmx is available])
AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS_MMX="-mmmx"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS="$CFLAGS -msse2"])
AC_MSG_CHECKING(for SSE2 instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("sse2")
#ifndef __SSE2__
# define __SSE2__
#endif
#include <emmintrin.h>
]], [[ __m128d x = _mm_setzero_pd();
__m128i z = _mm_srli_epi64(_mm_setzero_si128(), 26); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_EMMINTRIN_H], [1], [sse2 is available])
AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS_SSE2="-msse2"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS="$CFLAGS -msse3"])
AC_MSG_CHECKING(for SSE3 instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("sse3")
#include <pmmintrin.h>
]], [[ __m128 x = _mm_addsub_ps(_mm_cvtpd_ps(_mm_setzero_pd()),
_mm_cvtpd_ps(_mm_setzero_pd())); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_PMMINTRIN_H], [1], [sse3 is available])
AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS_SSE3="-msse3"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS="$CFLAGS -mssse3"])
AC_MSG_CHECKING(for SSSE3 instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("ssse3")
#include <tmmintrin.h>
]], [[ __m64 x = _mm_abs_pi32(_m_from_int(0)); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_TMMINTRIN_H], [1], [ssse3 is available])
AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS_SSSE3="-mssse3"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS="$CFLAGS -msse4.1"])
AC_MSG_CHECKING(for SSE4.1 instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("sse4.1")
#include <smmintrin.h>
]], [[ __m128i x = _mm_minpos_epu16(_mm_setzero_si128()); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_SMMINTRIN_H], [1], [sse4.1 is available])
AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS_SSE41="-msse4.1"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS="$CFLAGS -mavx"])
AC_MSG_CHECKING(for AVX instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("avx")
#include <immintrin.h>
]], [[ _mm256_zeroall(); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_AVXINTRIN_H], [1], [AVX is available])
AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS_AVX="-mavx"])],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS="$CFLAGS -mavx2"])
AC_MSG_CHECKING(for AVX2 instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("avx2")
#include <immintrin.h>
]], [[
__m256 x = _mm256_set1_ps(3.14);
__m256 y = _mm256_permutevar8x32_ps(x, _mm256_set1_epi32(42));
return _mm256_movemask_ps(_mm256_cmp_ps(x, y, _CMP_NEQ_OQ));
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_AVX2INTRIN_H], [1], [AVX2 is available])
AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS_AVX2="-mavx2"])
AC_MSG_CHECKING(if _mm256_broadcastsi128_si256 is correctly defined)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("avx2")
#include <immintrin.h>
]], [[ __m256i y = _mm256_broadcastsi128_si256(_mm_setzero_si128()); ]])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
AC_DEFINE([_mm256_broadcastsi128_si256], [_mm_broadcastsi128_si256],
[Define to the local name of _mm256_broadcastsi128_si256])])
],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS="$CFLAGS -mavx512f"])
AC_MSG_CHECKING(for AVX512F instructions set)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("avx512f")
#include <immintrin.h>
]], [[
#ifndef __AVX512F__
# error No AVX512 support
#elif defined(__clang__)
# if __clang_major__ < 4
# error Compiler AVX512 support may be broken
# endif
#elif defined(__GNUC__)
# if __GNUC__ < 6
# error Compiler AVX512 support may be broken
# endif
#endif
__m512i x = _mm512_setzero_epi32();
__m512i y = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), x);
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_AVX512FINTRIN_H], [1], [AVX512F is available])
AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS_AVX512F="-mavx512f"])],
[AC_MSG_RESULT(no)
AX_CHECK_COMPILE_FLAG([$CFLAGS -mno-avx512f],
[CFLAGS="$CFLAGS -mno-avx512f"])
])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS="$CFLAGS -maes"])
AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS="$CFLAGS -mpclmul"])
AC_MSG_CHECKING(for AESNI instructions set and PCLMULQDQ)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("aes")
#pragma GCC target("pclmul")
#include <wmmintrin.h>
]], [[ __m128i x = _mm_aesimc_si128(_mm_setzero_si128());
__m128i y = _mm_clmulepi64_si128(_mm_setzero_si128(), _mm_setzero_si128(), 0);]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_WMMINTRIN_H], [1], [aesni is available])
AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS_AESNI="-maes"])
AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS_PCLMUL="-mpclmul"])
],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
oldcflags="$CFLAGS"
AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS="$CFLAGS -mrdrnd"])
AC_MSG_CHECKING(for RDRAND)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC target("rdrnd")
#include <immintrin.h>
]], [[ unsigned long long x; _rdrand64_step(&x); ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_RDRAND], [1], [rdrand is available])
AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS_RDRAND="-mrdrnd"])
],
[AC_MSG_RESULT(no)])
CFLAGS="$oldcflags"
])
AC_SUBST(CFLAGS_ARMCRYPTO)
AC_SUBST(CFLAGS_MMX)
AC_SUBST(CFLAGS_SSE2)
AC_SUBST(CFLAGS_SSE3)
AC_SUBST(CFLAGS_SSSE3)
AC_SUBST(CFLAGS_SSE41)
AC_SUBST(CFLAGS_AVX)
AC_SUBST(CFLAGS_AVX2)
AC_SUBST(CFLAGS_AVX512F)
AC_SUBST(CFLAGS_AESNI)
AC_SUBST(CFLAGS_PCLMUL)
AC_SUBST(CFLAGS_RDRAND)
AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/random.h intrin.h sys/auxv.h])
AC_CHECK_HEADERS([CommonCrypto/CommonRandom.h])
AC_CHECK_HEADERS([cet.h])
AC_MSG_CHECKING([if _xgetbv() is available])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[ #include <intrin.h> ]], [[ (void) _xgetbv(0) ]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE__XGETBV], [1], [_xgetbv() is available])],
[AC_MSG_RESULT(no)])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AS_CASE([$host_cpu],
[i?86|amd64|x86_64],
[ac_cv_c_bigendian=no]
)
AC_C_BIGENDIAN(
AC_DEFINE(NATIVE_BIG_ENDIAN, 1, [machine is bigendian]),
AC_DEFINE(NATIVE_LITTLE_ENDIAN, 1, [machine is littleendian]),
AC_MSG_ERROR([unknown endianness]),
AC_MSG_ERROR([universal endianness is not supported - compile separately and use lipo(1)])
)
AC_MSG_CHECKING(whether __STDC_LIMIT_MACROS is required)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <limits.h>
#include <stdint.h>
]], [[
(void) SIZE_MAX;
(void) UINT64_MAX;
]])],
[AC_MSG_RESULT(no)],
[AC_MSG_RESULT(yes)
CPPFLAGS="$CPPFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS"
])
AC_MSG_CHECKING(whether we can use inline asm code)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
]], [[
int a = 42;
int *pnt = &a;
__asm__ __volatile__ ("" : : "r"(pnt) : "memory");
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_INLINE_ASM], [1], [inline asm code can be used])]
[AC_MSG_RESULT(no)]
)
HAVE_AMD64_ASM_V=0
AS_IF([test "$enable_asm" != "no"],[
AC_MSG_CHECKING(whether we can use x86_64 asm code)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
]], [[
#if defined(__amd64) || defined(__amd64__) || defined(__x86_64__)
# if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64) || defined(__midipix__)
# error Windows x86_64 calling conventions are not supported yet
# endif
/* neat */
#else
# error !x86_64
#endif
unsigned char i = 0, o = 0, t;
__asm__ __volatile__ ("pxor %%xmm12, %%xmm6 \n"
"movb (%[i]), %[t] \n"
"addb %[t], (%[o]) \n"
: [t] "=&r"(t)
: [o] "D"(&o), [i] "S"(&i)
: "memory", "flags", "cc");
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_AMD64_ASM], [1], [x86_64 asm code can be used])
HAVE_AMD64_ASM_V=1],
[AC_MSG_RESULT(no)])
])
AM_CONDITIONAL([HAVE_AMD64_ASM], [test $HAVE_AMD64_ASM_V = 1])
AC_SUBST(HAVE_AMD64_ASM_V)
HAVE_AVX_ASM_V=0
AS_IF([test "$enable_asm" != "no"],[
AC_MSG_CHECKING(whether we can assemble AVX opcodes)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
]], [[
#if defined(__amd64) || defined(__amd64__) || defined(__x86_64__)
# if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64)
# error Windows x86_64 calling conventions are not supported yet
# endif
/* neat */
#else
# error !x86_64
#endif
__asm__ __volatile__ ("vpunpcklqdq %xmm0,%xmm13,%xmm0");
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_AVX_ASM], [1], [AVX opcodes are supported])
HAVE_AVX_ASM_V=1],
[AC_MSG_RESULT(no)])
])
AM_CONDITIONAL([HAVE_AVX_ASM], [test $HAVE_AVX_ASM_V = 1])
AC_SUBST(HAVE_AVX_ASM_V)
AC_MSG_CHECKING(for 128-bit arithmetic)
HAVE_TI_MODE_V=0
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#if !defined(__clang__) && !defined(__GNUC__) && !defined(__SIZEOF_INT128__)
# error mode(TI) is a gcc extension, and __int128 is not available
#endif
#if defined(__clang__) && !defined(__x86_64__) && !defined(__aarch64__)
# error clang does not properly handle the 128-bit type on 32-bit systems
#endif
#ifndef NATIVE_LITTLE_ENDIAN
# error libsodium currently expects a little endian CPU for the 128-bit type
#endif
#ifdef __EMSCRIPTEN__
# error emscripten currently doesn't support some operations on integers larger than 64 bits
#endif
#include <stddef.h>
#include <stdint.h>
#if defined(__SIZEOF_INT128__)
typedef unsigned __int128 uint128_t;
#else
typedef unsigned uint128_t __attribute__((mode(TI)));
#endif
void fcontract(uint128_t *t) {
*t += 0x8000000000000 - 1;
*t *= *t;
*t >>= 84;
}
]], [[
(void) fcontract;
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_TI_MODE], [1], [gcc TI mode is available])
HAVE_TI_MODE_V=1],
[AC_MSG_RESULT(no)])
AM_CONDITIONAL([HAVE_TI_MODE], [test $HAVE_TI_MODE_V = 1])
AC_SUBST(HAVE_TI_MODE_V)
HAVE_CPUID_V=0
AS_IF([test "$enable_asm" != "no"],[
AC_MSG_CHECKING(for cpuid instruction)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[
unsigned int cpu_info[4];
__asm__ __volatile__ ("xchgl %%ebx, %k1; cpuid; xchgl %%ebx, %k1" :
"=a" (cpu_info[0]), "=&r" (cpu_info[1]),
"=c" (cpu_info[2]), "=d" (cpu_info[3]) :
"0" (0U), "2" (0U));
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_CPUID], [1], [cpuid instruction is available])
HAVE_CPUID_V=1],
[AC_MSG_RESULT(no)])
])
AC_SUBST(HAVE_CPUID_V)
asm_hide_symbol="unsupported"
AS_IF([test "$enable_asm" != "no"],[
AC_MSG_CHECKING(if the .private_extern asm directive is supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[
__asm__ __volatile__ (".private_extern dummy_symbol \n"
".private_extern _dummy_symbol \n"
".globl dummy_symbol \n"
".globl _dummy_symbol \n"
"dummy_symbol: \n"
"_dummy_symbol: \n"
" nop \n"
);
]])],
[AC_MSG_RESULT(yes)
asm_hide_symbol=".private_extern"],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING(if the .hidden asm directive is supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[
__asm__ __volatile__ (".hidden dummy_symbol \n"
".hidden _dummy_symbol \n"
".globl dummy_symbol \n"
".globl _dummy_symbol \n"
"dummy_symbol: \n"
"_dummy_symbol: \n"
" nop \n"
);
]])],
[AC_MSG_RESULT(yes)
AS_IF([test "$asm_hide_symbol" = "unsupported"],
[asm_hide_symbol=".hidden"],
[AC_MSG_NOTICE([unable to reliably tag symbols as private])
asm_hide_symbol="unsupported"])
],
[AC_MSG_RESULT(no)])
AS_IF([test "$asm_hide_symbol" != "unsupported"],[
AC_DEFINE_UNQUOTED([ASM_HIDE_SYMBOL], [$asm_hide_symbol], [directive to hide symbols])
])
])
AC_MSG_CHECKING(if weak symbols are supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#if !defined(__ELF__) && !defined(__APPLE_CC__)
# error Support for weak symbols may not be available
#endif
__attribute__((weak)) void __dummy(void *x) { }
void f(void *x) { __dummy(x); }
]], [[ ]]
)],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], [weak symbols are supported])],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING(if atomic operations are supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[
static volatile int _sodium_lock;
__sync_lock_test_and_set(&_sodium_lock, 1);
__sync_lock_release(&_sodium_lock);
]]
)],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_ATOMIC_OPS], [1], [atomic operations are supported])],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING(if C11 memory fences are supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdatomic.h>
]], [[
atomic_thread_fence(memory_order_acquire);
]]
)],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_C11_MEMORY_FENCES], [1], [C11 memory fences are supported])],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING(if gcc memory fences are supported)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[
__atomic_thread_fence(__ATOMIC_ACQUIRE);
]]
)],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_GCC_MEMORY_FENCES], [1], [GCC memory fences are supported])],
[AC_MSG_RESULT(no)])
dnl Checks for functions and headers
AC_FUNC_ALLOCA
AS_IF([test "x$EMSCRIPTEN" = "x"],[
AC_CHECK_FUNCS([arc4random arc4random_buf])
AS_IF([test "x$WASI" = "x"],[
AC_CHECK_FUNCS([mmap mlock madvise mprotect])
AC_CHECK_FUNCS([raise])
AC_CHECK_FUNCS([sysconf])
])
AC_MSG_CHECKING(for getrandom with a standard API)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_RANDOM_H
# include <sys/random.h>
#endif
]], [[
unsigned char buf;
if (&getrandom != NULL) {
(void) getrandom((void *) &buf, 1U, 0U);
}
]])],
[AC_MSG_RESULT(yes)
AC_CHECK_FUNCS([getrandom])],
[AC_MSG_RESULT(no)
])
AC_MSG_CHECKING(for getentropy with a standard API)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_RANDOM_H
# include <sys/random.h>
#endif
]], [[
unsigned char buf;
if (&getentropy != NULL) {
(void) getentropy((void *) &buf, 1U);
}
]])],
[AC_MSG_RESULT(yes)
AC_CHECK_FUNCS([getentropy])],
[AC_MSG_RESULT(no)
])
])
AS_IF([test "x$WASI" = "x"],[
AC_CHECK_FUNCS([getpid])
AC_CHECK_FUNCS([getauxval elf_aux_info])
])
AC_CHECK_FUNCS([posix_memalign nanosleep clock_gettime])
AS_IF([test "x$WASI" = "x"],[
AC_CHECK_FUNCS([memset_s explicit_bzero memset_explicit explicit_memset])
])
AC_SUBST([LIBTOOL_EXTRA_FLAGS])
TEST_LDFLAGS=''
AS_IF([test "x$EMSCRIPTEN" != "x"],[
EXEEXT=.js
TEST_LDFLAGS='--pre-js pre.js.inc -s RESERVED_FUNCTION_POINTERS=8'
])
AC_SUBST(TEST_LDFLAGS)
AM_CONDITIONAL([EMSCRIPTEN], [test "x$EMSCRIPTEN" != "x"])
AM_CONDITIONAL([WASI], [test "x$WASI" != "x"])
AC_DEFINE([CONFIGURED], [1], [the build system was properly configured])
dnl Libtool.
LT_INIT([dlopen win32-dll])
gl_LD_OUTPUT_DEF
dnl Output.
AH_VERBATIM([NDEBUG], [/* Always evaluate assert() calls */
#ifdef NDEBUG
#/**/undef/**/ NDEBUG
#endif])
AS_IF([test "x$ENABLE_CWFLAGS" = "xyes"], [
CFLAGS="$CFLAGS $CWFLAGS"
])
AC_CONFIG_FILES([Makefile
builds/Makefile
dist-build/Makefile
libsodium.pc
libsodium-uninstalled.pc
src/Makefile
src/libsodium/Makefile
src/libsodium/include/Makefile
src/libsodium/include/sodium/version.h
test/default/Makefile