forked from krissg/junkie
-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathaclocal.m4
4174 lines (3920 loc) · 152 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 1.16.5 -*- Autoconf -*-
# Copyright (C) 1996-2021 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]), [2.71],,
[m4_warning([this file was generated for autoconf 2.71.
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'.])])
# serial 10
# GUILE_PKG -- find Guile development files
#
# Usage: GUILE_PKG([VERSIONS])
#
# This macro runs the @code{pkg-config} tool to find development files
# for an available version of Guile.
#
# By default, this macro will search for the latest stable version of
# Guile (e.g. 2.2), falling back to the previous stable version
# (e.g. 2.0) if it is available. If no guile-@var{VERSION}.pc file is
# found, an error is signalled. The found version is stored in
# @var{GUILE_EFFECTIVE_VERSION}.
#
# If @code{GUILE_PROGS} was already invoked, this macro ensures that the
# development files have the same effective version as the Guile
# program.
#
# @var{GUILE_EFFECTIVE_VERSION} is marked for substitution, as by
# @code{AC_SUBST}.
#
AC_DEFUN([GUILE_PKG],
[PKG_PROG_PKG_CONFIG
_guile_versions_to_search="m4_default([$1], [2.2 2.0 1.8])"
if test -n "$GUILE_EFFECTIVE_VERSION"; then
_guile_tmp=""
for v in $_guile_versions_to_search; do
if test "$v" = "$GUILE_EFFECTIVE_VERSION"; then
_guile_tmp=$v
fi
done
if test -z "$_guile_tmp"; then
AC_MSG_FAILURE([searching for guile development files for versions $_guile_versions_to_search, but previously found $GUILE version $GUILE_EFFECTIVE_VERSION])
fi
_guile_versions_to_search=$GUILE_EFFECTIVE_VERSION
fi
GUILE_EFFECTIVE_VERSION=""
_guile_errors=""
for v in $_guile_versions_to_search; do
if test -z "$GUILE_EFFECTIVE_VERSION"; then
AC_MSG_NOTICE([checking for guile $v])
PKG_CHECK_EXISTS([guile-$v], [GUILE_EFFECTIVE_VERSION=$v], [])
fi
done
if test -z "$GUILE_EFFECTIVE_VERSION"; then
AC_MSG_ERROR([
No Guile development packages were found.
Please verify that you have Guile installed. If you installed Guile
from a binary distribution, please verify that you have also installed
the development packages. If you installed it yourself, you might need
to adjust your PKG_CONFIG_PATH; see the pkg-config man page for more.
])
fi
AC_MSG_NOTICE([found guile $GUILE_EFFECTIVE_VERSION])
AC_SUBST([GUILE_EFFECTIVE_VERSION])
])
# GUILE_FLAGS -- set flags for compiling and linking with Guile
#
# Usage: GUILE_FLAGS
#
# This macro runs the @code{pkg-config} tool to find out how to compile
# and link programs against Guile. It sets four variables:
# @var{GUILE_CFLAGS}, @var{GUILE_LDFLAGS}, @var{GUILE_LIBS}, and
# @var{GUILE_LTLIBS}.
#
# @var{GUILE_CFLAGS}: flags to pass to a C or C++ compiler to build code that
# uses Guile header files. This is almost always just one or more @code{-I}
# flags.
#
# @var{GUILE_LDFLAGS}: flags to pass to the compiler to link a program
# against Guile. This includes @code{-lguile-@var{VERSION}} for the
# Guile library itself, and may also include one or more @code{-L} flag
# to tell the compiler where to find the libraries. But it does not
# include flags that influence the program's runtime search path for
# libraries, and will therefore lead to a program that fails to start,
# unless all necessary libraries are installed in a standard location
# such as @file{/usr/lib}.
#
# @var{GUILE_LIBS} and @var{GUILE_LTLIBS}: flags to pass to the compiler or to
# libtool, respectively, to link a program against Guile. It includes flags
# that augment the program's runtime search path for libraries, so that shared
# libraries will be found at the location where they were during linking, even
# in non-standard locations. @var{GUILE_LIBS} is to be used when linking the
# program directly with the compiler, whereas @var{GUILE_LTLIBS} is to be used
# when linking the program is done through libtool.
#
# The variables are marked for substitution, as by @code{AC_SUBST}.
#
AC_DEFUN([GUILE_FLAGS],
[AC_REQUIRE([GUILE_PKG])
PKG_CHECK_MODULES(GUILE, [guile-$GUILE_EFFECTIVE_VERSION])
dnl GUILE_CFLAGS and GUILE_LIBS are already defined and AC_SUBST'd by
dnl PKG_CHECK_MODULES. But GUILE_LIBS to pkg-config is GUILE_LDFLAGS
dnl to us.
GUILE_LDFLAGS=$GUILE_LIBS
dnl Determine the platform dependent parameters needed to use rpath.
dnl AC_LIB_LINKFLAGS_FROM_LIBS is defined in gnulib/m4/lib-link.m4 and needs
dnl the file gnulib/build-aux/config.rpath.
AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LIBS], [$GUILE_LDFLAGS], [])
GUILE_LIBS="$GUILE_LDFLAGS $GUILE_LIBS"
AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LTLIBS], [$GUILE_LDFLAGS], [yes])
GUILE_LTLIBS="$GUILE_LDFLAGS $GUILE_LTLIBS"
AC_SUBST([GUILE_EFFECTIVE_VERSION])
AC_SUBST([GUILE_CFLAGS])
AC_SUBST([GUILE_LDFLAGS])
AC_SUBST([GUILE_LIBS])
AC_SUBST([GUILE_LTLIBS])
])
# GUILE_SITE_DIR -- find path to Guile site directories
#
# Usage: GUILE_SITE_DIR
#
# This looks for Guile's "site" directories. The variable @var{GUILE_SITE} will
# be set to Guile's "site" directory for Scheme source files (usually something
# like PREFIX/share/guile/site). @var{GUILE_SITE_CCACHE} will be set to the
# directory for compiled Scheme files also known as @code{.go} files
# (usually something like
# PREFIX/lib/guile/@var{GUILE_EFFECTIVE_VERSION}/site-ccache).
# @var{GUILE_EXTENSION} will be set to the directory for compiled C extensions
# (usually something like
# PREFIX/lib/guile/@var{GUILE_EFFECTIVE_VERSION}/extensions). The latter two
# are set to blank if the particular version of Guile does not support
# them. Note that this macro will run the macros @code{GUILE_PKG} and
# @code{GUILE_PROGS} if they have not already been run.
#
# The variables are marked for substitution, as by @code{AC_SUBST}.
#
AC_DEFUN([GUILE_SITE_DIR],
[AC_REQUIRE([GUILE_PKG])
AC_REQUIRE([GUILE_PROGS])
AC_MSG_CHECKING(for Guile site directory)
GUILE_SITE=`$PKG_CONFIG --print-errors --variable=sitedir guile-$GUILE_EFFECTIVE_VERSION`
AC_MSG_RESULT($GUILE_SITE)
if test "$GUILE_SITE" = ""; then
AC_MSG_FAILURE(sitedir not found)
fi
AC_SUBST(GUILE_SITE)
AC_MSG_CHECKING([for Guile site-ccache directory using pkgconfig])
GUILE_SITE_CCACHE=`$PKG_CONFIG --variable=siteccachedir guile-$GUILE_EFFECTIVE_VERSION`
if test "$GUILE_SITE_CCACHE" = ""; then
AC_MSG_RESULT(no)
AC_MSG_CHECKING([for Guile site-ccache directory using interpreter])
GUILE_SITE_CCACHE=`$GUILE -c "(display (if (defined? '%site-ccache-dir) (%site-ccache-dir) \"\"))"`
if test $? != "0" -o "$GUILE_SITE_CCACHE" = ""; then
AC_MSG_RESULT(no)
GUILE_SITE_CCACHE=""
AC_MSG_WARN([siteccachedir not found])
fi
fi
AC_MSG_RESULT($GUILE_SITE_CCACHE)
AC_SUBST([GUILE_SITE_CCACHE])
AC_MSG_CHECKING(for Guile extensions directory)
GUILE_EXTENSION=`$PKG_CONFIG --print-errors --variable=extensiondir guile-$GUILE_EFFECTIVE_VERSION`
AC_MSG_RESULT($GUILE_EXTENSION)
if test "$GUILE_EXTENSION" = ""; then
GUILE_EXTENSION=""
AC_MSG_WARN(extensiondir not found)
fi
AC_SUBST(GUILE_EXTENSION)
])
# GUILE_PROGS -- set paths to Guile interpreter, config and tool programs
#
# Usage: GUILE_PROGS([VERSION])
#
# This macro looks for programs @code{guile} and @code{guild}, setting
# variables @var{GUILE} and @var{GUILD} to their paths, respectively.
# The macro will attempt to find @code{guile} with the suffix of
# @code{-X.Y}, followed by looking for it with the suffix @code{X.Y}, and
# then fall back to looking for @code{guile} with no suffix. If
# @code{guile} is still not found, signal an error. The suffix, if any,
# that was required to find @code{guile} will be used for @code{guild}
# as well.
#
# By default, this macro will search for the latest stable version of
# Guile (e.g. 2.2). x.y or x.y.z versions can be specified. If an older
# version is found, the macro will signal an error.
#
# The effective version of the found @code{guile} is set to
# @var{GUILE_EFFECTIVE_VERSION}. This macro ensures that the effective
# version is compatible with the result of a previous invocation of
# @code{GUILE_FLAGS}, if any.
#
# As a legacy interface, it also looks for @code{guile-config} and
# @code{guile-tools}, setting @var{GUILE_CONFIG} and @var{GUILE_TOOLS}.
#
# The variables are marked for substitution, as by @code{AC_SUBST}.
#
AC_DEFUN([GUILE_PROGS],
[_guile_required_version="m4_default([$1], [$GUILE_EFFECTIVE_VERSION])"
if test -z "$_guile_required_version"; then
_guile_required_version=2.2
fi
_guile_candidates=guile
_tmp=
for v in `echo "$_guile_required_version" | tr . ' '`; do
if test -n "$_tmp"; then _tmp=$_tmp.; fi
_tmp=$_tmp$v
_guile_candidates="guile-$_tmp guile$_tmp $_guile_candidates"
done
AC_PATH_PROGS(GUILE,[$_guile_candidates])
if test -z "$GUILE"; then
AC_MSG_ERROR([guile required but not found])
fi
_guile_suffix=`echo "$GUILE" | sed -e 's,^.*/guile\(.*\)$,\1,'`
_guile_effective_version=`$GUILE -c "(display (effective-version))"`
if test -z "$GUILE_EFFECTIVE_VERSION"; then
GUILE_EFFECTIVE_VERSION=$_guile_effective_version
elif test "$GUILE_EFFECTIVE_VERSION" != "$_guile_effective_version"; then
AC_MSG_ERROR([found development files for Guile $GUILE_EFFECTIVE_VERSION, but $GUILE has effective version $_guile_effective_version])
fi
_guile_major_version=`$GUILE -c "(display (major-version))"`
_guile_minor_version=`$GUILE -c "(display (minor-version))"`
_guile_micro_version=`$GUILE -c "(display (micro-version))"`
_guile_prog_version="$_guile_major_version.$_guile_minor_version.$_guile_micro_version"
AC_MSG_CHECKING([for Guile version >= $_guile_required_version])
_major_version=`echo $_guile_required_version | cut -d . -f 1`
_minor_version=`echo $_guile_required_version | cut -d . -f 2`
_micro_version=`echo $_guile_required_version | cut -d . -f 3`
if test "$_guile_major_version" -gt "$_major_version"; then
true
elif test "$_guile_major_version" -eq "$_major_version"; then
if test "$_guile_minor_version" -gt "$_minor_version"; then
true
elif test "$_guile_minor_version" -eq "$_minor_version"; then
if test -n "$_micro_version"; then
if test "$_guile_micro_version" -lt "$_micro_version"; then
AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found])
fi
fi
elif test "$GUILE_EFFECTIVE_VERSION" = "$_major_version.$_minor_version" -a -z "$_micro_version"; then
# Allow prereleases that have the right effective version.
true
else
as_fn_error $? "Guile $_guile_required_version required, but $_guile_prog_version found" "$LINENO" 5
fi
elif test "$GUILE_EFFECTIVE_VERSION" = "$_major_version.$_minor_version" -a -z "$_micro_version"; then
# Allow prereleases that have the right effective version.
true
else
AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found])
fi
AC_MSG_RESULT([$_guile_prog_version])
AC_PATH_PROG(GUILD,[guild$_guile_suffix])
AC_SUBST(GUILD)
AC_PATH_PROG(GUILE_CONFIG,[guile-config$_guile_suffix])
AC_SUBST(GUILE_CONFIG)
if test -n "$GUILD"; then
GUILE_TOOLS=$GUILD
else
AC_PATH_PROG(GUILE_TOOLS,[guile-tools$_guile_suffix])
fi
AC_SUBST(GUILE_TOOLS)
])
# GUILE_CHECK -- evaluate Guile Scheme code and capture the return value
#
# Usage: GUILE_CHECK_RETVAL(var,check)
#
# @var{var} is a shell variable name to be set to the return value.
# @var{check} is a Guile Scheme expression, evaluated with "$GUILE -c", and
# returning either 0 or non-#f to indicate the check passed.
# Non-0 number or #f indicates failure.
# Avoid using the character "#" since that confuses autoconf.
#
AC_DEFUN([GUILE_CHECK],
[AC_REQUIRE([GUILE_PROGS])
$GUILE -c "$2" > /dev/null 2>&1
$1=$?
])
# GUILE_MODULE_CHECK -- check feature of a Guile Scheme module
#
# Usage: GUILE_MODULE_CHECK(var,module,featuretest,description)
#
# @var{var} is a shell variable name to be set to "yes" or "no".
# @var{module} is a list of symbols, like: (ice-9 common-list).
# @var{featuretest} is an expression acceptable to GUILE_CHECK, q.v.
# @var{description} is a present-tense verb phrase (passed to AC_MSG_CHECKING).
#
AC_DEFUN([GUILE_MODULE_CHECK],
[AC_MSG_CHECKING([if $2 $4])
GUILE_CHECK($1,(use-modules $2) (exit ((lambda () $3))))
if test "$$1" = "0" ; then $1=yes ; else $1=no ; fi
AC_MSG_RESULT($$1)
])
# GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module
#
# Usage: GUILE_MODULE_AVAILABLE(var,module)
#
# @var{var} is a shell variable name to be set to "yes" or "no".
# @var{module} is a list of symbols, like: (ice-9 common-list).
#
AC_DEFUN([GUILE_MODULE_AVAILABLE],
[GUILE_MODULE_CHECK($1,$2,0,is available)
])
# GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable
#
# Usage: GUILE_MODULE_REQUIRED(symlist)
#
# @var{symlist} is a list of symbols, WITHOUT surrounding parens,
# like: ice-9 common-list.
#
AC_DEFUN([GUILE_MODULE_REQUIRED],
[GUILE_MODULE_AVAILABLE(ac_guile_module_required, ($1))
if test "$ac_guile_module_required" = "no" ; then
AC_MSG_ERROR([required guile module not found: ($1)])
fi
])
# GUILE_MODULE_EXPORTS -- check if a module exports a variable
#
# Usage: GUILE_MODULE_EXPORTS(var,module,modvar)
#
# @var{var} is a shell variable to be set to "yes" or "no".
# @var{module} is a list of symbols, like: (ice-9 common-list).
# @var{modvar} is the Guile Scheme variable to check.
#
AC_DEFUN([GUILE_MODULE_EXPORTS],
[GUILE_MODULE_CHECK($1,$2,$3,exports `$3')
])
# GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable
#
# Usage: GUILE_MODULE_REQUIRED_EXPORT(module,modvar)
#
# @var{module} is a list of symbols, like: (ice-9 common-list).
# @var{modvar} is the Guile Scheme variable to check.
#
AC_DEFUN([GUILE_MODULE_REQUIRED_EXPORT],
[GUILE_MODULE_EXPORTS(guile_module_required_export,$1,$2)
if test "$guile_module_required_export" = "no" ; then
AC_MSG_ERROR([module $1 does not export $2; required])
fi
])
# host-cpu-c-abi.m4 serial 13
dnl Copyright (C) 2002-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible and Sam Steingold.
dnl Sets the HOST_CPU variable to the canonical name of the CPU.
dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its
dnl C language ABI (application binary interface).
dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in
dnl config.h.
dnl
dnl This canonical name can be used to select a particular assembly language
dnl source file that will interoperate with C code on the given host.
dnl
dnl For example:
dnl * 'i386' and 'sparc' are different canonical names, because code for i386
dnl will not run on SPARC CPUs and vice versa. They have different
dnl instruction sets.
dnl * 'sparc' and 'sparc64' are different canonical names, because code for
dnl 'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code
dnl contains 32-bit instructions, whereas 'sparc64' code contains 64-bit
dnl instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit
dnl mode, but not both.
dnl * 'mips' and 'mipsn32' are different canonical names, because they use
dnl different argument passing and return conventions for C functions, and
dnl although the instruction set of 'mips' is a large subset of the
dnl instruction set of 'mipsn32'.
dnl * 'mipsn32' and 'mips64' are different canonical names, because they use
dnl different sizes for the C types like 'int' and 'void *', and although
dnl the instruction sets of 'mipsn32' and 'mips64' are the same.
dnl * The same canonical name is used for different endiannesses. You can
dnl determine the endianness through preprocessor symbols:
dnl - 'arm': test __ARMEL__.
dnl - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL.
dnl - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN.
dnl * The same name 'i386' is used for CPUs of type i386, i486, i586
dnl (Pentium), AMD K7, Pentium II, Pentium IV, etc., because
dnl - Instructions that do not exist on all of these CPUs (cmpxchg,
dnl MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your
dnl assembly language source files use such instructions, you will
dnl need to make the distinction.
dnl - Speed of execution of the common instruction set is reasonable across
dnl the entire family of CPUs. If you have assembly language source files
dnl that are optimized for particular CPU types (like GNU gmp has), you
dnl will need to make the distinction.
dnl See <https://en.wikipedia.org/wiki/X86_instruction_listings>.
AC_DEFUN([gl_HOST_CPU_C_ABI],
[
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([gl_C_ASM])
AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi],
[case "$host_cpu" in
changequote(,)dnl
i[34567]86 )
changequote([,])dnl
gl_cv_host_cpu_c_abi=i386
;;
x86_64 )
# On x86_64 systems, the C compiler may be generating code in one of
# these ABIs:
# - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
# - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
# with native Windows (mingw, MSVC).
# - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32.
# - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if (defined __x86_64__ || defined __amd64__ \
|| defined _M_X64 || defined _M_AMD64)
int ok;
#else
error fail
#endif
]])],
[AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __ILP32__ || defined _ILP32
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=x86_64-x32],
[gl_cv_host_cpu_c_abi=x86_64])],
[gl_cv_host_cpu_c_abi=i386])
;;
changequote(,)dnl
alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
changequote([,])dnl
gl_cv_host_cpu_c_abi=alpha
;;
arm* | aarch64 )
# Assume arm with EABI.
# On arm64 systems, the C compiler may be generating code in one of
# these ABIs:
# - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
# - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32.
# - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#ifdef __aarch64__
int ok;
#else
error fail
#endif
]])],
[AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __ILP32__ || defined _ILP32
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=arm64-ilp32],
[gl_cv_host_cpu_c_abi=arm64])],
[# Don't distinguish little-endian and big-endian arm, since they
# don't require different machine code for simple operations and
# since the user can distinguish them through the preprocessor
# defines __ARMEL__ vs. __ARMEB__.
# But distinguish arm which passes floating-point arguments and
# return values in integer registers (r0, r1, ...) - this is
# gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which
# passes them in float registers (s0, s1, ...) and double registers
# (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer
# sets the preprocessor defines __ARM_PCS (for the first case) and
# __ARM_PCS_VFP (for the second case), but older GCC does not.
echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c
# Look for a reference to the register d0 in the .s file.
AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1
if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then
gl_cv_host_cpu_c_abi=armhf
else
gl_cv_host_cpu_c_abi=arm
fi
rm -f conftest*
])
;;
hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
# On hppa, the C compiler may be generating 32-bit code or 64-bit
# code. In the latter case, it defines _LP64 and __LP64__.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#ifdef __LP64__
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=hppa64],
[gl_cv_host_cpu_c_abi=hppa])
;;
ia64* )
# On ia64 on HP-UX, the C compiler may be generating 64-bit code or
# 32-bit code. In the latter case, it defines _ILP32.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#ifdef _ILP32
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=ia64-ilp32],
[gl_cv_host_cpu_c_abi=ia64])
;;
mips* )
# We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
# at 32.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=mips64],
[# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but
# may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32.
# In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but
# may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if (_MIPS_SIM == _ABIN32)
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=mipsn32],
[gl_cv_host_cpu_c_abi=mips])])
;;
powerpc* )
# Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
# No need to distinguish them here; the caller may distinguish
# them based on the OS.
# On powerpc64 systems, the C compiler may still be generating
# 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
# be generating 64-bit code.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __powerpc64__ || defined _ARCH_PPC64
int ok;
#else
error fail
#endif
]])],
[# On powerpc64, there are two ABIs on Linux: The AIX compatible
# one and the ELFv2 one. The latter defines _CALL_ELF=2.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined _CALL_ELF && _CALL_ELF == 2
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=powerpc64-elfv2],
[gl_cv_host_cpu_c_abi=powerpc64])
],
[gl_cv_host_cpu_c_abi=powerpc])
;;
rs6000 )
gl_cv_host_cpu_c_abi=powerpc
;;
riscv32 | riscv64 )
# There are 2 architectures (with variants): rv32* and rv64*.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if __riscv_xlen == 64
int ok;
#else
error fail
#endif
]])],
[cpu=riscv64],
[cpu=riscv32])
# There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d.
# Size of 'long' and 'void *':
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __LP64__
int ok;
#else
error fail
#endif
]])],
[main_abi=lp64],
[main_abi=ilp32])
# Float ABIs:
# __riscv_float_abi_double:
# 'float' and 'double' are passed in floating-point registers.
# __riscv_float_abi_single:
# 'float' are passed in floating-point registers.
# __riscv_float_abi_soft:
# No values are passed in floating-point registers.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __riscv_float_abi_double
int ok;
#else
error fail
#endif
]])],
[float_abi=d],
[AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __riscv_float_abi_single
int ok;
#else
error fail
#endif
]])],
[float_abi=f],
[float_abi=''])
])
gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}"
;;
s390* )
# On s390x, the C compiler may be generating 64-bit (= s390x) code
# or 31-bit (= s390) code.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __LP64__ || defined __s390x__
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=s390x],
[gl_cv_host_cpu_c_abi=s390])
;;
sparc | sparc64 )
# UltraSPARCs running Linux have `uname -m` = "sparc64", but the
# C compiler still generates 32-bit code.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __sparcv9 || defined __arch64__
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi=sparc64],
[gl_cv_host_cpu_c_abi=sparc])
;;
*)
gl_cv_host_cpu_c_abi="$host_cpu"
;;
esac
])
dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same.
HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'`
HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi"
AC_SUBST([HOST_CPU])
AC_SUBST([HOST_CPU_C_ABI])
# This was
# AC_DEFINE_UNQUOTED([__${HOST_CPU}__])
# AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__])
# earlier, but KAI C++ 3.2d doesn't like this.
sed -e 's/-/_/g' >> confdefs.h <<EOF
#ifndef __${HOST_CPU}__
#define __${HOST_CPU}__ 1
#endif
#ifndef __${HOST_CPU_C_ABI}__
#define __${HOST_CPU_C_ABI}__ 1
#endif
EOF
AH_TOP([/* CPU and C ABI indicator */
#ifndef __i386__
#undef __i386__
#endif
#ifndef __x86_64_x32__
#undef __x86_64_x32__
#endif
#ifndef __x86_64__
#undef __x86_64__
#endif
#ifndef __alpha__
#undef __alpha__
#endif
#ifndef __arm__
#undef __arm__
#endif
#ifndef __armhf__
#undef __armhf__
#endif
#ifndef __arm64_ilp32__
#undef __arm64_ilp32__
#endif
#ifndef __arm64__
#undef __arm64__
#endif
#ifndef __hppa__
#undef __hppa__
#endif
#ifndef __hppa64__
#undef __hppa64__
#endif
#ifndef __ia64_ilp32__
#undef __ia64_ilp32__
#endif
#ifndef __ia64__
#undef __ia64__
#endif
#ifndef __m68k__
#undef __m68k__
#endif
#ifndef __mips__
#undef __mips__
#endif
#ifndef __mipsn32__
#undef __mipsn32__
#endif
#ifndef __mips64__
#undef __mips64__
#endif
#ifndef __powerpc__
#undef __powerpc__
#endif
#ifndef __powerpc64__
#undef __powerpc64__
#endif
#ifndef __powerpc64_elfv2__
#undef __powerpc64_elfv2__
#endif
#ifndef __riscv32__
#undef __riscv32__
#endif
#ifndef __riscv64__
#undef __riscv64__
#endif
#ifndef __riscv32_ilp32__
#undef __riscv32_ilp32__
#endif
#ifndef __riscv32_ilp32f__
#undef __riscv32_ilp32f__
#endif
#ifndef __riscv32_ilp32d__
#undef __riscv32_ilp32d__
#endif
#ifndef __riscv64_ilp32__
#undef __riscv64_ilp32__
#endif
#ifndef __riscv64_ilp32f__
#undef __riscv64_ilp32f__
#endif
#ifndef __riscv64_ilp32d__
#undef __riscv64_ilp32d__
#endif
#ifndef __riscv64_lp64__
#undef __riscv64_lp64__
#endif
#ifndef __riscv64_lp64f__
#undef __riscv64_lp64f__
#endif
#ifndef __riscv64_lp64d__
#undef __riscv64_lp64d__
#endif
#ifndef __s390__
#undef __s390__
#endif
#ifndef __s390x__
#undef __s390x__
#endif
#ifndef __sh__
#undef __sh__
#endif
#ifndef __sparc__
#undef __sparc__
#endif
#ifndef __sparc64__
#undef __sparc64__
#endif
])
])
dnl Sets the HOST_CPU_C_ABI_32BIT variable to 'yes' if the C language ABI
dnl (application binary interface) is a 32-bit one, to 'no' if it is a 64-bit
dnl one, or to 'unknown' if unknown.
dnl This is a simplified variant of gl_HOST_CPU_C_ABI.
AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT],
[
AC_REQUIRE([AC_CANONICAL_HOST])
AC_CACHE_CHECK([32-bit host C ABI], [gl_cv_host_cpu_c_abi_32bit],
[if test -n "$gl_cv_host_cpu_c_abi"; then
case "$gl_cv_host_cpu_c_abi" in
i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc)
gl_cv_host_cpu_c_abi_32bit=yes ;;
x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 )
gl_cv_host_cpu_c_abi_32bit=no ;;
*)
gl_cv_host_cpu_c_abi_32bit=unknown ;;
esac
else
case "$host_cpu" in
# CPUs that only support a 32-bit ABI.
arc \
| bfin \
| cris* \
| csky \
| epiphany \
| ft32 \
| h8300 \
| m68k \
| microblaze | microblazeel \
| nds32 | nds32le | nds32be \
| nios2 | nios2eb | nios2el \
| or1k* \
| or32 \
| sh | sh[1234] | sh[1234]e[lb] \
| tic6x \
| xtensa* )
gl_cv_host_cpu_c_abi_32bit=yes
;;
# CPUs that only support a 64-bit ABI.
changequote(,)dnl
alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \
| mmix )
changequote([,])dnl
gl_cv_host_cpu_c_abi_32bit=no
;;
changequote(,)dnl
i[34567]86 )
changequote([,])dnl
gl_cv_host_cpu_c_abi_32bit=yes
;;
x86_64 )
# On x86_64 systems, the C compiler may be generating code in one of
# these ABIs:
# - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
# - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
# with native Windows (mingw, MSVC).
# - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32.
# - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if (defined __x86_64__ || defined __amd64__ \
|| defined _M_X64 || defined _M_AMD64) \
&& !(defined __ILP32__ || defined _ILP32)
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=no],
[gl_cv_host_cpu_c_abi_32bit=yes])
;;
arm* | aarch64 )
# Assume arm with EABI.
# On arm64 systems, the C compiler may be generating code in one of
# these ABIs:
# - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
# - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32.
# - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __aarch64__ && !(defined __ILP32__ || defined _ILP32)
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=no],
[gl_cv_host_cpu_c_abi_32bit=yes])
;;
hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
# On hppa, the C compiler may be generating 32-bit code or 64-bit
# code. In the latter case, it defines _LP64 and __LP64__.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#ifdef __LP64__
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=no],
[gl_cv_host_cpu_c_abi_32bit=yes])
;;
ia64* )
# On ia64 on HP-UX, the C compiler may be generating 64-bit code or
# 32-bit code. In the latter case, it defines _ILP32.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#ifdef _ILP32
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=yes],
[gl_cv_host_cpu_c_abi_32bit=no])
;;
mips* )
# We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
# at 32.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=no],
[gl_cv_host_cpu_c_abi_32bit=yes])
;;
powerpc* )
# Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
# No need to distinguish them here; the caller may distinguish
# them based on the OS.
# On powerpc64 systems, the C compiler may still be generating
# 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
# be generating 64-bit code.
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE(
[[#if defined __powerpc64__ || defined _ARCH_PPC64
int ok;
#else
error fail
#endif
]])],
[gl_cv_host_cpu_c_abi_32bit=no],
[gl_cv_host_cpu_c_abi_32bit=yes])
;;
rs6000 )
gl_cv_host_cpu_c_abi_32bit=yes