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
|
dnl Copyright 2005 Red Hat, Inc.
dnl
dnl Permission to use, copy, modify, distribute, and sell this software and its
dnl documentation for any purpose is hereby granted without fee, provided that
dnl the above copyright notice appear in all copies and that both that
dnl copyright notice and this permission notice appear in supporting
dnl documentation, and that the name of Red Hat not be used in
dnl advertising or publicity pertaining to distribution of the software without
dnl specific, written prior permission. Red Hat makes no
dnl representations about the suitability of this software for any purpose. It
dnl is provided "as is" without express or implied warranty.
dnl
dnl RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
dnl INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
dnl EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
dnl CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
dnl DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
dnl TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
dnl PERFORMANCE OF THIS SOFTWARE.
dnl
dnl Process this file with autoconf to create configure.
AC_PREREQ([2.57])
# Pixman versioning scheme
#
# - The version in git has an odd MICRO version number
#
# - Released versions both development and stable have an even MICRO
# version number
#
# - Released development versions have an odd MINOR number
#
# - Released stable versions have an even MINOR number
#
# - Versions that break ABI must have a new MAJOR number
#
# - If you break the ABI, then at least this must be done:
#
# - increment MAJOR
#
# - In the first development release where you break ABI, find
# all instances of "pixman-n" and change them to pixman-(n+1)
#
# This needs to be done at least in
# configure.ac
# all Makefile.am's
# pixman-n.pc.in
#
# This ensures that binary incompatible versions can be installed
# in parallel. See http://www106.pair.com/rhp/parallel.html for
# more information
#
m4_define([pixman_major], 0)
m4_define([pixman_minor], 23)
m4_define([pixman_micro], 5)
m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])
AC_INIT(pixman, pixman_version, [pixman@lists.freedesktop.org], pixman)
AM_INIT_AUTOMAKE([foreign dist-bzip2])
# Suppress verbose compile lines
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AM_CONFIG_HEADER(config.h)
AC_CANONICAL_HOST
test_CFLAGS=${CFLAGS+set} # We may override autoconf default CFLAGS.
AC_PROG_CC
AM_PROG_AS
AC_PROG_LIBTOOL
AC_CHECK_FUNCS([getisax])
AC_C_BIGENDIAN
AC_C_INLINE
dnl PIXMAN_LINK_WITH_ENV(env-setup, program, true-action, false-action)
dnl
dnl Compiles and links the given program in the environment setup by env-setup
dnl and executes true-action on success and false-action on failure.
AC_DEFUN([PIXMAN_LINK_WITH_ENV],[dnl
save_CFLAGS="$CFLAGS"
save_LDFLAGS="$LDFLAGS"
save_LIBS="$LIBS"
CFLAGS=""
LDFLAGS=""
LIBS=""
$1
AC_LINK_IFELSE(
[AC_LANG_SOURCE([$2])],
[pixman_cc_stderr=`test -f conftest.err && cat conftest.err`
pixman_cc_flag=yes],
[pixman_cc_stderr=`test -f conftest.err && cat conftest.err`
pixman_cc_flag=no])
if test "x$pixman_cc_stderr" != "x"; then
pixman_cc_flag=no
fi
if test "x$pixman_cc_flag" = "xyes"; then
ifelse([$3], , :, [$3])
else
ifelse([$4], , :, [$4])
fi
CFLAGS="$save_CFLAGS"
LDFLAGS="$save_LDFLAGS"
LIBS="$save_LIBS"
])
dnl Find a -Werror for catching warnings.
WERROR=
for w in -Werror -errwarn; do
if test "z$WERROR" = "z"; then
AC_MSG_CHECKING([whether the compiler supports $w])
PIXMAN_LINK_WITH_ENV(
[CFLAGS=$w],
[int main(int c, char **v) { (void)c; (void)v; return 0; }],
[WERROR=$w; yesno=yes], [yesno=no])
AC_MSG_RESULT($yesno)
fi
done
dnl PIXMAN_CHECK_CFLAG(flag, [program])
dnl Adds flag to CFLAGS if the given program links without warnings or errors.
AC_DEFUN([PIXMAN_CHECK_CFLAG], [dnl
AC_MSG_CHECKING([whether the compiler supports $1])
PIXMAN_LINK_WITH_ENV(
[CFLAGS="$WERROR $1"],
[$2
int main(int c, char **v) { (void)c; (void)v; return 0; }
],
[_yesno=yes],
[_yesno=no])
if test "x$_yesno" = xyes; then
CFLAGS="$CFLAGS $1"
fi
AC_MSG_RESULT($_yesno)
])
AC_CHECK_SIZEOF(long)
# Checks for Sun Studio compilers
AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
AC_CHECK_DECL([__amd64], [AMD64_ABI="yes"], [AMD64_ABI="no"])
# Default CFLAGS to -O -g rather than just the -g from AC_PROG_CC
# if we're using Sun Studio and neither the user nor a config.site
# has set CFLAGS.
if test $SUNCC = yes && \
test "$test_CFLAGS" == "" && \
test "$CFLAGS" = "-g"
then
CFLAGS="-O -g"
fi
#
# We ignore pixman_major in the version here because the major version should
# always be encoded in the actual library name. Ie., the soname is:
#
# pixman-$(pixman_major).0.minor.micro
#
m4_define([lt_current], [pixman_minor])
m4_define([lt_revision], [pixman_micro])
m4_define([lt_age], [pixman_minor])
LT_VERSION_INFO="lt_current:lt_revision:lt_age"
PIXMAN_VERSION_MAJOR=pixman_major()
AC_SUBST(PIXMAN_VERSION_MAJOR)
PIXMAN_VERSION_MINOR=pixman_minor()
AC_SUBST(PIXMAN_VERSION_MINOR)
PIXMAN_VERSION_MICRO=pixman_micro()
AC_SUBST(PIXMAN_VERSION_MICRO)
AC_SUBST(LT_VERSION_INFO)
# Check for dependencies
PIXMAN_CHECK_CFLAG([-Wall])
PIXMAN_CHECK_CFLAG([-fno-strict-aliasing])
AC_PATH_PROG(PERL, perl, no)
if test "x$PERL" = xno; then
AC_MSG_ERROR([Perl is required to build pixman.])
fi
AC_SUBST(PERL)
dnl =========================================================================
dnl OpenMP for the test suite?
dnl
# Check for OpenMP support only when autoconf support that (require autoconf >=2.62)
OPENMP_CFLAGS=
m4_ifdef([AC_OPENMP], [AC_OPENMP])
if test "x$enable_openmp" = "xyes" && test "x$ac_cv_prog_c_openmp" = "xunsupported" ; then
AC_MSG_WARN([OpenMP support requested but found unsupported])
fi
dnl May not fail to link without -Wall -Werror added
dnl So try to link only when openmp is supported
dnl ac_cv_prog_c_openmp is not defined when --disable-openmp is used
if test "x$ac_cv_prog_c_openmp" != "xunsupported" && test "x$ac_cv_prog_c_openmp" != "x"; then
m4_define([openmp_test_program],[dnl
#include <stdio.h>
extern unsigned int lcg_seed;
#pragma omp threadprivate(lcg_seed)
unsigned int lcg_seed;
unsigned function(unsigned a, unsigned b)
{
lcg_seed ^= b;
return ((a + b) ^ a ) + lcg_seed;
}
int main(int argc, char **argv)
{
int i;
int n1 = 0, n2 = argc;
unsigned checksum = 0;
int verbose = argv != NULL;
unsigned (*test_function)(unsigned, unsigned);
test_function = function;
#pragma omp parallel for reduction(+:checksum) default(none) \
shared(n1, n2, test_function, verbose)
for (i = n1; i < n2; i++)
{
unsigned crc = test_function (i, 0);
if (verbose)
printf ("%d: %08X\n", i, crc);
checksum += crc;
}
printf("%u\n", checksum);
return 0;
}
])
PIXMAN_LINK_WITH_ENV(
[CFLAGS="$OPENMP_CFLAGS" LDFLAGS="$OPENMP_CFLAGS"],
[openmp_test_program],
[have_openmp=yes],
[have_openmp=no])
if test "x$have_openmp" = "xyes" ; then
AC_DEFINE(USE_OPENMP, 1, [use OpenMP in the test suite])
fi
fi
AC_SUBST(OPENMP_CFLAGS)
dnl =========================================================================
dnl -fvisibility stuff
PIXMAN_CHECK_CFLAG([-fvisibility=hidden], [dnl
#if defined(__GNUC__) && (__GNUC__ >= 4)
#ifdef _WIN32
#error Have -fvisibility but it is ignored and generates a warning
#endif
#else
error Need GCC 4.0 for visibility
#endif
])
PIXMAN_CHECK_CFLAG([-xldscope=hidden], [dnl
#if defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
#else
error Need Sun Studio 8 for visibility
#endif
])
dnl ===========================================================================
dnl Check for MMX
if test "x$MMX_CFLAGS" = "x" ; then
if test "x$SUNCC" = "xyes"; then
# Sun Studio doesn't have an -xarch=mmx flag, so we have to use sse
# but if we're building 64-bit, mmx & sse support is on by default and
# -xarch=sse throws an error instead
if test "$AMD64_ABI" = "no" ; then
MMX_CFLAGS="-xarch=sse"
fi
else
MMX_CFLAGS="-mmmx -Winline"
fi
fi
have_mmx_intrinsics=no
AC_MSG_CHECKING(whether to use MMX intrinsics)
xserver_save_CFLAGS=$CFLAGS
CFLAGS="$MMX_CFLAGS $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
error "Need GCC >= 3.4 for MMX intrinsics"
#endif
#include <mmintrin.h>
int main () {
__m64 v = _mm_cvtsi32_si64 (1);
return _mm_cvtsi64_si32 (v);
}]])], have_mmx_intrinsics=yes)
CFLAGS=$xserver_save_CFLAGS
AC_ARG_ENABLE(mmx,
[AC_HELP_STRING([--disable-mmx],
[disable MMX fast paths])],
[enable_mmx=$enableval], [enable_mmx=auto])
if test $enable_mmx = no ; then
have_mmx_intrinsics=disabled
fi
if test $have_mmx_intrinsics = yes ; then
AC_DEFINE(USE_MMX, 1, [use MMX compiler intrinsics])
else
MMX_CFLAGS=
fi
AC_MSG_RESULT($have_mmx_intrinsics)
if test $enable_mmx = yes && test $have_mmx_intrinsics = no ; then
AC_MSG_ERROR([MMX intrinsics not detected])
fi
AM_CONDITIONAL(USE_MMX, test $have_mmx_intrinsics = yes)
dnl ===========================================================================
dnl Check for SSE2
if test "x$SSE2_CFLAGS" = "x" ; then
if test "x$SUNCC" = "xyes"; then
# SSE2 is enabled by default in the Sun Studio 64-bit environment
if test "$AMD64_ABI" = "no" ; then
SSE2_CFLAGS="-xarch=sse2"
fi
else
SSE2_CFLAGS="-msse2 -Winline"
fi
fi
have_sse2_intrinsics=no
AC_MSG_CHECKING(whether to use SSE2 intrinsics)
xserver_save_CFLAGS=$CFLAGS
CFLAGS="$SSE2_CFLAGS $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2))
# if !defined(__amd64__) && !defined(__x86_64__)
# error "Need GCC >= 4.2 for SSE2 intrinsics on x86"
# endif
#endif
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
int main () {
__m128i a = _mm_set1_epi32 (0), b = _mm_set1_epi32 (0), c;
c = _mm_xor_si128 (a, b);
return 0;
}]])], have_sse2_intrinsics=yes)
CFLAGS=$xserver_save_CFLAGS
AC_ARG_ENABLE(sse2,
[AC_HELP_STRING([--disable-sse2],
[disable SSE2 fast paths])],
[enable_sse2=$enableval], [enable_sse2=auto])
if test $enable_sse2 = no ; then
have_sse2_intrinsics=disabled
fi
if test $have_sse2_intrinsics = yes ; then
AC_DEFINE(USE_SSE2, 1, [use SSE2 compiler intrinsics])
fi
AC_MSG_RESULT($have_sse2_intrinsics)
if test $enable_sse2 = yes && test $have_sse2_intrinsics = no ; then
AC_MSG_ERROR([SSE2 intrinsics not detected])
fi
AM_CONDITIONAL(USE_SSE2, test $have_sse2_intrinsics = yes)
dnl ===========================================================================
dnl Other special flags needed when building code using MMX or SSE instructions
case $host_os in
solaris*)
# When building 32-bit binaries, apply a mapfile to ensure that the
# binaries aren't flagged as only able to run on MMX+SSE capable CPUs
# since they check at runtime before using those instructions.
# Not all linkers grok the mapfile format so we check for that first.
if test "$AMD64_ABI" = "no" ; then
use_hwcap_mapfile=no
AC_MSG_CHECKING(whether to use a hardware capability map file)
hwcap_save_LDFLAGS="$LDFLAGS"
HWCAP_LDFLAGS='-Wl,-M,$(srcdir)/solaris-hwcap.mapfile'
LDFLAGS="$LDFLAGS -Wl,-M,pixman/solaris-hwcap.mapfile"
AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
use_hwcap_mapfile=yes,
HWCAP_LDFLAGS="")
LDFLAGS="$hwcap_save_LDFLAGS"
AC_MSG_RESULT($use_hwcap_mapfile)
fi
if test "x$MMX_LDFLAGS" = "x" ; then
MMX_LDFLAGS="$HWCAP_LDFLAGS"
fi
if test "x$SSE2_LDFLAGS" = "x" ; then
SSE2_LDFLAGS="$HWCAP_LDFLAGS"
fi
;;
esac
AC_SUBST(MMX_CFLAGS)
AC_SUBST(MMX_LDFLAGS)
AC_SUBST(SSE2_CFLAGS)
AC_SUBST(SSE2_LDFLAGS)
dnl ===========================================================================
dnl Check for VMX/Altivec
if test -n "`$CC -v 2>&1 | grep version | grep Apple`"; then
VMX_CFLAGS="-faltivec"
else
VMX_CFLAGS="-maltivec -mabi=altivec"
fi
have_vmx_intrinsics=no
AC_MSG_CHECKING(whether to use VMX/Altivec intrinsics)
xserver_save_CFLAGS=$CFLAGS
CFLAGS="$VMX_CFLAGS $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
error "Need GCC >= 3.4 for sane altivec support"
#endif
#include <altivec.h>
int main () {
vector unsigned int v = vec_splat_u32 (1);
v = vec_sub (v, v);
return 0;
}]])], have_vmx_intrinsics=yes)
CFLAGS=$xserver_save_CFLAGS
AC_ARG_ENABLE(vmx,
[AC_HELP_STRING([--disable-vmx],
[disable VMX fast paths])],
[enable_vmx=$enableval], [enable_vmx=auto])
if test $enable_vmx = no ; then
have_vmx_intrinsics=disabled
fi
if test $have_vmx_intrinsics = yes ; then
AC_DEFINE(USE_VMX, 1, [use VMX compiler intrinsics])
else
VMX_CFLAGS=
fi
AC_MSG_RESULT($have_vmx_intrinsics)
if test $enable_vmx = yes && test $have_vmx_intrinsics = no ; then
AC_MSG_ERROR([VMX intrinsics not detected])
fi
AC_SUBST(VMX_CFLAGS)
AM_CONDITIONAL(USE_VMX, test $have_vmx_intrinsics = yes)
dnl ==========================================================================
dnl Check if assembler is gas compatible and supports ARM SIMD instructions
have_arm_simd=no
AC_MSG_CHECKING(whether to use ARM SIMD assembler)
xserver_save_CFLAGS=$CFLAGS
CFLAGS="-x assembler-with-cpp $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
.text
.arch armv6
.object_arch armv4
.arm
.altmacro
#ifndef __ARM_EABI__
#error EABI is required (to be sure that calling conventions are compatible)
#endif
pld [r0]
uqadd8 r0, r0, r0]])], have_arm_simd=yes)
CFLAGS=$xserver_save_CFLAGS
AC_ARG_ENABLE(arm-simd,
[AC_HELP_STRING([--disable-arm-simd],
[disable ARM SIMD fast paths])],
[enable_arm_simd=$enableval], [enable_arm_simd=auto])
if test $enable_arm_simd = no ; then
have_arm_simd=disabled
fi
if test $have_arm_simd = yes ; then
AC_DEFINE(USE_ARM_SIMD, 1, [use ARM SIMD assembly optimizations])
fi
AM_CONDITIONAL(USE_ARM_SIMD, test $have_arm_simd = yes)
AC_MSG_RESULT($have_arm_simd)
if test $enable_arm_simd = yes && test $have_arm_simd = no ; then
AC_MSG_ERROR([ARM SIMD intrinsics not detected])
fi
dnl ==========================================================================
dnl Check if assembler is gas compatible and supports NEON instructions
have_arm_neon=no
AC_MSG_CHECKING(whether to use ARM NEON assembler)
xserver_save_CFLAGS=$CFLAGS
CFLAGS="-x assembler-with-cpp $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
.text
.fpu neon
.arch armv7a
.object_arch armv4
.eabi_attribute 10, 0
.arm
.altmacro
#ifndef __ARM_EABI__
#error EABI is required (to be sure that calling conventions are compatible)
#endif
pld [r0]
vmovn.u16 d0, q0]])], have_arm_neon=yes)
CFLAGS=$xserver_save_CFLAGS
AC_ARG_ENABLE(arm-neon,
[AC_HELP_STRING([--disable-arm-neon],
[disable ARM NEON fast paths])],
[enable_arm_neon=$enableval], [enable_arm_neon=auto])
if test $enable_arm_neon = no ; then
have_arm_neon=disabled
fi
if test $have_arm_neon = yes ; then
AC_DEFINE(USE_ARM_NEON, 1, [use ARM NEON assembly optimizations])
fi
AM_CONDITIONAL(USE_ARM_NEON, test $have_arm_neon = yes)
AC_MSG_RESULT($have_arm_neon)
if test $enable_arm_neon = yes && test $have_arm_neon = no ; then
AC_MSG_ERROR([ARM NEON intrinsics not detected])
fi
dnl =========================================================================================
dnl Check for GNU-style inline assembly support
have_gcc_inline_asm=no
AC_MSG_CHECKING(whether to use GNU-style inline assembler)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
int main () {
/* Most modern architectures have a NOP instruction, so this is a fairly generic test. */
asm volatile ( "\tnop\n" : : : "cc", "memory" );
return 0;
}]])], have_gcc_inline_asm=yes)
AC_ARG_ENABLE(gcc-inline-asm,
[AC_HELP_STRING([--disable-gcc-inline-asm],
[disable GNU-style inline assembler])],
[enable_gcc_inline_asm=$enableval], [enable_gcc_inline_asm=auto])
if test $enable_gcc_inline_asm = no ; then
have_gcc_inline_asm=disabled
fi
if test $have_gcc_inline_asm = yes ; then
AC_DEFINE(USE_GCC_INLINE_ASM, 1, [use GNU-style inline assembler])
fi
AC_MSG_RESULT($have_gcc_inline_asm)
if test $enable_gcc_inline_asm = yes && test $have_gcc_inline_asm = no ; then
AC_MSG_ERROR([GNU-style inline assembler not detected])
fi
AM_CONDITIONAL(USE_GCC_INLINE_ASM, test $have_gcc_inline_asm = yes)
dnl ==============================================
dnl Static test programs
AC_ARG_ENABLE(static-testprogs,
[AC_HELP_STRING([--enable-static-testprogs],
[build test programs as static binaries [default=no]])],
[enable_static_testprogs=$enableval], [enable_static_testprogs=no])
TESTPROGS_EXTRA_LDFLAGS=
if test "x$enable_static_testprogs" = "xyes" ; then
TESTPROGS_EXTRA_LDFLAGS="-all-static"
fi
AC_SUBST(TESTPROGS_EXTRA_LDFLAGS)
dnl ==============================================
dnl Timers
AC_ARG_ENABLE(timers,
[AC_HELP_STRING([--enable-timers],
[enable TIMER_BEGIN and TIMER_END macros [default=no]])],
[enable_timers=$enableval], [enable_timers=no])
if test $enable_timers = yes ; then
AC_DEFINE(PIXMAN_TIMERS, 1, [enable TIMER_BEGIN/TIMER_END macros])
fi
AC_SUBST(PIXMAN_TIMERS)
dnl ===================================
dnl GTK+
AC_ARG_ENABLE(gtk,
[AC_HELP_STRING([--enable-gtk],
[enable tests using GTK+ [default=auto]])],
[enable_gtk=$enableval], [enable_gtk=auto])
PKG_PROG_PKG_CONFIG
if test $enable_gtk = yes ; then
AC_CHECK_LIB([pixman-1], [pixman_version_string])
PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1])
fi
if test $enable_gtk = auto ; then
AC_CHECK_LIB([pixman-1], [pixman_version_string], [enable_gtk=auto], [enable_gtk=no])
fi
if test $enable_gtk = auto ; then
PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1], [enable_gtk=yes], [enable_gtk=no])
fi
AM_CONDITIONAL(HAVE_GTK, [test "x$enable_gtk" = xyes])
AC_SUBST(GTK_CFLAGS)
AC_SUBST(GTK_LIBS)
AC_SUBST(DEP_CFLAGS)
AC_SUBST(DEP_LIBS)
dnl =====================================
dnl posix_memalign, sigaction, alarm, gettimeofday
AC_CHECK_FUNC(posix_memalign, have_posix_memalign=yes, have_posix_memalign=no)
if test x$have_posix_memalign = xyes; then
AC_DEFINE(HAVE_POSIX_MEMALIGN, 1, [Whether we have posix_memalign()])
fi
AC_CHECK_FUNC(sigaction, have_sigaction=yes, have_sigaction=no)
if test x$have_sigaction = xyes; then
AC_DEFINE(HAVE_SIGACTION, 1, [Whether we have sigaction()])
fi
AC_CHECK_FUNC(alarm, have_alarm=yes, have_alarm=no)
if test x$have_alarm = xyes; then
AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()])
fi
AC_CHECK_HEADER([sys/mman.h],
[AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have <sys/mman.h>])])
AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no)
if test x$have_mmap = xyes; then
AC_DEFINE(HAVE_MMAP, 1, [Whether we have mmap()])
fi
AC_CHECK_FUNC(mprotect, have_mprotect=yes, have_mprotect=no)
if test x$have_mprotect = xyes; then
AC_DEFINE(HAVE_MPROTECT, 1, [Whether we have mprotect()])
fi
AC_CHECK_FUNC(getpagesize, have_getpagesize=yes, have_getpagesize=no)
if test x$have_getpagesize = xyes; then
AC_DEFINE(HAVE_GETPAGESIZE, 1, [Whether we have getpagesize()])
fi
AC_CHECK_HEADER([fenv.h],
[AC_DEFINE(HAVE_FENV_H, [1], [Define to 1 if we have <fenv.h>])])
AC_CHECK_LIB(m, feenableexcept, have_feenableexcept=yes, have_feenableexcept=no)
if test x$have_feenableexcept = xyes; then
AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
fi
AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then
AC_DEFINE(HAVE_GETTIMEOFDAY, 1, [Whether we have gettimeofday()])
fi
dnl =====================================
dnl Thread local storage
support_for__thread=no
AC_MSG_CHECKING(for __thread)
AC_LINK_IFELSE([AC_LANG_SOURCE([[
#if defined(__MINGW32__) && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
#error This MinGW version has broken __thread support
#endif
#ifdef __OpenBSD__
#error OpenBSD has broken __thread support
#endif
static __thread int x ;
int main () { x = 123; return x; }
]])], support_for__thread=yes)
if test $support_for__thread = yes; then
AC_DEFINE([TOOLCHAIN_SUPPORTS__THREAD],[],[Whether the tool chain supports __thread])
fi
AC_MSG_RESULT($support_for__thread)
dnl
dnl posix tls
dnl
m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl
#include <stdlib.h>
#include <pthread.h>
static pthread_once_t once_control = PTHREAD_ONCE_INIT;
static pthread_key_t key;
static void
make_key (void)
{
pthread_key_create (&key, NULL);
}
int
main ()
{
void *value = NULL;
if (pthread_once (&once_control, make_key) != 0)
{
value = NULL;
}
else
{
value = pthread_getspecific (key);
if (!value)
{
value = malloc (100);
pthread_setspecific (key, value);
}
}
return 0;
}
]]))
AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
if test "z$support_for_pthread_setspecific" != "zyes"; then
PIXMAN_LINK_WITH_ENV(
[$1], [pthread_test_program],
[PTHREAD_CFLAGS="$CFLAGS"
PTHREAD_LIBS="$LIBS"
PTHREAD_LDFLAGS="$LDFLAGS"
support_for_pthread_setspecific=yes])
fi
])
if test $support_for__thread = no; then
support_for_pthread_setspecific=no
AC_MSG_CHECKING(for pthread_setspecific)
PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LIBS="-lpthread"])
PIXMAN_CHECK_PTHREAD([CFLAGS="-pthread"; LDFLAGS="-pthread"])
PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LDFLAGS="-lroot"])
if test $support_for_pthread_setspecific = yes; then
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
AC_DEFINE([HAVE_PTHREAD_SETSPECIFIC], [], [Whether pthread_setspecific() is supported])
fi
AC_MSG_RESULT($support_for_pthread_setspecific);
fi
AC_SUBST(TOOLCHAIN_SUPPORTS__THREAD)
AC_SUBST(HAVE_PTHREAD_SETSPECIFIC)
AC_SUBST(PTHREAD_LDFLAGS)
AC_SUBST(PTHREAD_LIBS)
dnl =====================================
dnl __attribute__((constructor))
support_for_attribute_constructor=no
AC_MSG_CHECKING(for __attribute__((constructor)))
AC_LINK_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
/* attribute 'constructor' is supported since gcc 2.7, but some compilers
* may only pretend to be gcc, so let's try to actually use it
*/
static int x = 1;
static void __attribute__((constructor)) constructor_function () { x = 0; }
int main (void) { return x; }
#else
#error not gcc or gcc version is older than 2.7
#endif
]])], support_for_attribute_constructor=yes)
if test x$support_for_attribute_constructor = xyes; then
AC_DEFINE([TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR],
[],[Whether the tool chain supports __attribute__((constructor))])
fi
AC_MSG_RESULT($support_for_attribute_constructor)
AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR)
dnl ==================
dnl libpng
AC_CHECK_LIB([png], [png_write_info], [have_libpng=yes], [have_libpng=no])
if test x$have_libpng = xyes; then
AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng])
fi
AC_SUBST(HAVE_LIBPNG)
AC_OUTPUT([pixman-1.pc
pixman-1-uninstalled.pc
Makefile
pixman/Makefile
pixman/pixman-version.h
demos/Makefile
test/Makefile])
m4_if(m4_eval(pixman_minor % 2), [1], [
echo
echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
echo
echo " Thanks for testing this development snapshot of pixman. Please"
echo " report any problems you find, either by sending email to "
echo
echo " pixman@lists.freedesktop.org"
echo
echo " or by filing a bug at "
echo
echo " https://bugs.freedesktop.org/enter_bug.cgi?product=pixman "
echo
echo " If you are looking for a stable release of pixman, please note "
echo " that stable releases have _even_ minor version numbers. Ie., "
echo " pixman-0.]m4_eval(pixman_minor & ~1)[.x are stable releases, whereas pixman-$PIXMAN_VERSION_MAJOR.$PIXMAN_VERSION_MINOR.$PIXMAN_VERSION_MICRO is a "
echo " development snapshot that may contain bugs and experimental "
echo " features. "
echo
echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
echo
])
|