1 dnl Copyright 2005 Red Hat, Inc.
3 dnl Permission to use, copy, modify, distribute, and sell this software and its
4 dnl documentation for any purpose is hereby granted without fee, provided that
5 dnl the above copyright notice appear in all copies and that both that
6 dnl copyright notice and this permission notice appear in supporting
7 dnl documentation, and that the name of Red Hat not be used in
8 dnl advertising or publicity pertaining to distribution of the software without
9 dnl specific, written prior permission. Red Hat makes no
10 dnl representations about the suitability of this software for any purpose. It
11 dnl is provided "as is" without express or implied warranty.
13 dnl RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
14 dnl INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
15 dnl EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
16 dnl CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
17 dnl DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
18 dnl TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
19 dnl PERFORMANCE OF THIS SOFTWARE.
21 dnl Process this file with autoconf to create configure.
25 # Pixman versioning scheme
27 # - The version in git has an odd MICRO version number
29 # - Released versions, both development and stable, have an
30 # even MICRO version number
32 # - Released development versions have an odd MINOR number
34 # - Released stable versions have an even MINOR number
36 # - Versions that break ABI must have a new MAJOR number
38 # - If you break the ABI, then at least this must be done:
42 # - In the first development release where you break ABI, find
43 # all instances of "pixman-n" and change them to pixman-(n+1)
45 # This needs to be done at least in
50 # This ensures that binary incompatible versions can be installed
51 # in parallel. See http://www106.pair.com/rhp/parallel.html for
55 m4_define([pixman_major], 0)
56 m4_define([pixman_minor], 25)
57 m4_define([pixman_micro], 3)
59 m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])
61 AC_INIT(pixman, pixman_version, [pixman@lists.freedesktop.org], pixman)
62 AM_INIT_AUTOMAKE([foreign dist-bzip2])
64 # Suppress verbose compile lines
65 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
67 AM_CONFIG_HEADER(config.h)
71 test_CFLAGS=${CFLAGS+set} # We may override autoconf default CFLAGS.
76 AC_CHECK_FUNCS([getisax])
80 dnl PIXMAN_LINK_WITH_ENV(env-setup, program, true-action, false-action)
82 dnl Compiles and links the given program in the environment setup by env-setup
83 dnl and executes true-action on success and false-action on failure.
84 AC_DEFUN([PIXMAN_LINK_WITH_ENV],[dnl
86 save_LDFLAGS="$LDFLAGS"
93 [AC_LANG_SOURCE([$2])],
94 [pixman_cc_stderr=`test -f conftest.err && cat conftest.err`
96 [pixman_cc_stderr=`test -f conftest.err && cat conftest.err`
99 if test "x$pixman_cc_stderr" != "x"; then
103 if test "x$pixman_cc_flag" = "xyes"; then
104 ifelse([$3], , :, [$3])
106 ifelse([$4], , :, [$4])
108 CFLAGS="$save_CFLAGS"
109 LDFLAGS="$save_LDFLAGS"
113 dnl Find a -Werror for catching warnings.
115 for w in -Werror -errwarn; do
116 if test "z$WERROR" = "z"; then
117 AC_MSG_CHECKING([whether the compiler supports $w])
118 PIXMAN_LINK_WITH_ENV(
120 [int main(int c, char **v) { (void)c; (void)v; return 0; }],
121 [WERROR=$w; yesno=yes], [yesno=no])
122 AC_MSG_RESULT($yesno)
126 dnl PIXMAN_CHECK_CFLAG(flag, [program])
127 dnl Adds flag to CFLAGS if the given program links without warnings or errors.
128 AC_DEFUN([PIXMAN_CHECK_CFLAG], [dnl
129 AC_MSG_CHECKING([whether the compiler supports $1])
130 PIXMAN_LINK_WITH_ENV(
131 [CFLAGS="$WERROR $1"],
133 int main(int c, char **v) { (void)c; (void)v; return 0; }
137 if test "x$_yesno" = xyes; then
140 AC_MSG_RESULT($_yesno)
143 AC_CHECK_SIZEOF(long)
145 # Checks for Sun Studio compilers
146 AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
147 AC_CHECK_DECL([__amd64], [AMD64_ABI="yes"], [AMD64_ABI="no"])
149 # Default CFLAGS to -O -g rather than just the -g from AC_PROG_CC
150 # if we're using Sun Studio and neither the user nor a config.site
152 if test $SUNCC = yes && \
153 test "x$test_CFLAGS" = "x" && \
154 test "$CFLAGS" = "-g"
160 # We ignore pixman_major in the version here because the major version should
161 # always be encoded in the actual library name. Ie., the soname is:
163 # pixman-$(pixman_major).0.minor.micro
165 m4_define([lt_current], [pixman_minor])
166 m4_define([lt_revision], [pixman_micro])
167 m4_define([lt_age], [pixman_minor])
169 LT_VERSION_INFO="lt_current:lt_revision:lt_age"
171 PIXMAN_VERSION_MAJOR=pixman_major()
172 AC_SUBST(PIXMAN_VERSION_MAJOR)
173 PIXMAN_VERSION_MINOR=pixman_minor()
174 AC_SUBST(PIXMAN_VERSION_MINOR)
175 PIXMAN_VERSION_MICRO=pixman_micro()
176 AC_SUBST(PIXMAN_VERSION_MICRO)
178 AC_SUBST(LT_VERSION_INFO)
180 # Check for dependencies
182 PIXMAN_CHECK_CFLAG([-Wall])
183 PIXMAN_CHECK_CFLAG([-fno-strict-aliasing])
185 AC_PATH_PROG(PERL, perl, no)
186 if test "x$PERL" = xno; then
187 AC_MSG_ERROR([Perl is required to build pixman.])
191 dnl =========================================================================
192 dnl OpenMP for the test suite?
195 # Check for OpenMP support only when autoconf support that (require autoconf >=2.62)
197 m4_ifdef([AC_OPENMP], [AC_OPENMP])
199 if test "x$enable_openmp" = "xyes" && test "x$ac_cv_prog_c_openmp" = "xunsupported" ; then
200 AC_MSG_WARN([OpenMP support requested but found unsupported])
203 dnl May not fail to link without -Wall -Werror added
204 dnl So try to link only when openmp is supported
205 dnl ac_cv_prog_c_openmp is not defined when --disable-openmp is used
206 if test "x$ac_cv_prog_c_openmp" != "xunsupported" && test "x$ac_cv_prog_c_openmp" != "x"; then
207 m4_define([openmp_test_program],[dnl
210 extern unsigned int lcg_seed;
211 #pragma omp threadprivate(lcg_seed)
212 unsigned int lcg_seed;
214 unsigned function(unsigned a, unsigned b)
217 return ((a + b) ^ a ) + lcg_seed;
220 int main(int argc, char **argv)
223 int n1 = 0, n2 = argc;
224 unsigned checksum = 0;
225 int verbose = argv != NULL;
226 unsigned (*test_function)(unsigned, unsigned);
227 test_function = function;
228 #pragma omp parallel for reduction(+:checksum) default(none) \
229 shared(n1, n2, test_function, verbose)
230 for (i = n1; i < n2; i++)
232 unsigned crc = test_function (i, 0);
234 printf ("%d: %08X\n", i, crc);
237 printf("%u\n", checksum);
242 PIXMAN_LINK_WITH_ENV(
243 [CFLAGS="$OPENMP_CFLAGS" LDFLAGS="$OPENMP_CFLAGS"],
244 [openmp_test_program],
247 if test "x$have_openmp" = "xyes" ; then
248 AC_DEFINE(USE_OPENMP, 1, [use OpenMP in the test suite])
251 AC_SUBST(OPENMP_CFLAGS)
253 dnl =========================================================================
254 dnl -fvisibility stuff
256 PIXMAN_CHECK_CFLAG([-fvisibility=hidden], [dnl
257 #if defined(__GNUC__) && (__GNUC__ >= 4)
259 #error Have -fvisibility but it is ignored and generates a warning
262 #error Need GCC 4.0 for visibility
266 PIXMAN_CHECK_CFLAG([-xldscope=hidden], [dnl
267 #if defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
269 #error Need Sun Studio 8 for visibility
273 dnl ===========================================================================
274 dnl Check for Loongson Multimedia Instructions
276 if test "x$LS_CFLAGS" = "x" ; then
277 LS_CFLAGS="-march=loongson2f"
281 AC_MSG_CHECKING(whether to use Loongson MMI)
283 xserver_save_CFLAGS=$CFLAGS
284 CFLAGS=" $LS_CFLAGS $CFLAGS"
285 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
286 #ifndef __mips_loongson_vector_rev
287 #error "Loongson Multimedia Instructions are only available on Loongson"
289 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4))
290 #error "Need GCC >= 4.4 for Loongson MMI compilation"
292 #include "pixman/loongson-mmintrin.h"
297 } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
299 __m64 c = _mm_srli_pi16 (a.v, b);
301 }]])], have_loongson_mmi=yes)
302 CFLAGS=$xserver_save_CFLAGS
304 AC_ARG_ENABLE(loongson,
305 [AC_HELP_STRING([--disable-loongson],
306 [disable Loongson fast paths])],
307 [enable_loongson=$enableval], [enable_loongson=auto])
309 if test $enable_loongson = no ; then
310 have_loongson_mmi=disabled
313 if test $have_loongson_mmi = yes ; then
314 AC_DEFINE(USE_LOONGSON_MMI, 1, [use Loongson Multimedia Instructions])
319 AC_MSG_RESULT($have_loongson_mmi)
320 if test $enable_loongson = yes && test $have_loongson_mmi = no ; then
321 AC_MSG_ERROR([Loongson MMI not detected])
324 AM_CONDITIONAL(USE_LOONGSON_MMI, test $have_loongson_mmi = yes)
326 dnl ===========================================================================
329 if test "x$MMX_CFLAGS" = "x" ; then
330 if test "x$SUNCC" = "xyes"; then
331 # Sun Studio doesn't have an -xarch=mmx flag, so we have to use sse
332 # but if we're building 64-bit, mmx & sse support is on by default and
333 # -xarch=sse throws an error instead
334 if test "$AMD64_ABI" = "no" ; then
335 MMX_CFLAGS="-xarch=sse"
338 MMX_CFLAGS="-mmmx -Winline"
342 have_mmx_intrinsics=no
343 AC_MSG_CHECKING(whether to use MMX intrinsics)
344 xserver_save_CFLAGS=$CFLAGS
345 CFLAGS="$MMX_CFLAGS $CFLAGS"
346 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
347 #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
348 #error "Need GCC >= 3.4 for MMX intrinsics"
350 #include <mmintrin.h>
352 __m64 v = _mm_cvtsi32_si64 (1);
356 /* Some versions of clang will choke on K */
357 asm ("pshufw %2, %1, %0\n\t"
362 return _mm_cvtsi64_si32 (v);
363 }]])], have_mmx_intrinsics=yes)
364 CFLAGS=$xserver_save_CFLAGS
367 [AC_HELP_STRING([--disable-mmx],
368 [disable x86 MMX fast paths])],
369 [enable_mmx=$enableval], [enable_mmx=auto])
371 if test $enable_mmx = no ; then
372 have_mmx_intrinsics=disabled
375 if test $have_mmx_intrinsics = yes ; then
376 AC_DEFINE(USE_X86_MMX, 1, [use x86 MMX compiler intrinsics])
381 AC_MSG_RESULT($have_mmx_intrinsics)
382 if test $enable_mmx = yes && test $have_mmx_intrinsics = no ; then
383 AC_MSG_ERROR([x86 MMX intrinsics not detected])
386 AM_CONDITIONAL(USE_X86_MMX, test $have_mmx_intrinsics = yes)
388 dnl ===========================================================================
391 if test "x$SSE2_CFLAGS" = "x" ; then
392 if test "x$SUNCC" = "xyes"; then
393 # SSE2 is enabled by default in the Sun Studio 64-bit environment
394 if test "$AMD64_ABI" = "no" ; then
395 SSE2_CFLAGS="-xarch=sse2"
398 SSE2_CFLAGS="-msse2 -Winline"
402 have_sse2_intrinsics=no
403 AC_MSG_CHECKING(whether to use SSE2 intrinsics)
404 xserver_save_CFLAGS=$CFLAGS
405 CFLAGS="$SSE2_CFLAGS $CFLAGS"
407 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
408 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2))
409 # if !defined(__amd64__) && !defined(__x86_64__)
410 # error "Need GCC >= 4.2 for SSE2 intrinsics on x86"
413 #include <mmintrin.h>
414 #include <xmmintrin.h>
415 #include <emmintrin.h>
417 __m128i a = _mm_set1_epi32 (0), b = _mm_set1_epi32 (0), c;
418 c = _mm_xor_si128 (a, b);
420 }]])], have_sse2_intrinsics=yes)
421 CFLAGS=$xserver_save_CFLAGS
424 [AC_HELP_STRING([--disable-sse2],
425 [disable SSE2 fast paths])],
426 [enable_sse2=$enableval], [enable_sse2=auto])
428 if test $enable_sse2 = no ; then
429 have_sse2_intrinsics=disabled
432 if test $have_sse2_intrinsics = yes ; then
433 AC_DEFINE(USE_SSE2, 1, [use SSE2 compiler intrinsics])
436 AC_MSG_RESULT($have_sse2_intrinsics)
437 if test $enable_sse2 = yes && test $have_sse2_intrinsics = no ; then
438 AC_MSG_ERROR([SSE2 intrinsics not detected])
441 AM_CONDITIONAL(USE_SSE2, test $have_sse2_intrinsics = yes)
443 dnl ===========================================================================
444 dnl Other special flags needed when building code using MMX or SSE instructions
447 # When building 32-bit binaries, apply a mapfile to ensure that the
448 # binaries aren't flagged as only able to run on MMX+SSE capable CPUs
449 # since they check at runtime before using those instructions.
450 # Not all linkers grok the mapfile format so we check for that first.
451 if test "$AMD64_ABI" = "no" ; then
453 AC_MSG_CHECKING(whether to use a hardware capability map file)
454 hwcap_save_LDFLAGS="$LDFLAGS"
455 HWCAP_LDFLAGS='-Wl,-M,$(srcdir)/solaris-hwcap.mapfile'
456 LDFLAGS="$LDFLAGS -Wl,-M,pixman/solaris-hwcap.mapfile"
457 AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
458 use_hwcap_mapfile=yes,
460 LDFLAGS="$hwcap_save_LDFLAGS"
461 AC_MSG_RESULT($use_hwcap_mapfile)
463 if test "x$MMX_LDFLAGS" = "x" ; then
464 MMX_LDFLAGS="$HWCAP_LDFLAGS"
466 if test "x$SSE2_LDFLAGS" = "x" ; then
467 SSE2_LDFLAGS="$HWCAP_LDFLAGS"
473 AC_SUBST(IWMMXT_CFLAGS)
475 AC_SUBST(MMX_LDFLAGS)
476 AC_SUBST(SSE2_CFLAGS)
477 AC_SUBST(SSE2_LDFLAGS)
479 dnl ===========================================================================
480 dnl Check for VMX/Altivec
481 if test -n "`$CC -v 2>&1 | grep version | grep Apple`"; then
482 VMX_CFLAGS="-faltivec"
484 VMX_CFLAGS="-maltivec -mabi=altivec"
487 have_vmx_intrinsics=no
488 AC_MSG_CHECKING(whether to use VMX/Altivec intrinsics)
489 xserver_save_CFLAGS=$CFLAGS
490 CFLAGS="$VMX_CFLAGS $CFLAGS"
491 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
492 #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
493 #error "Need GCC >= 3.4 for sane altivec support"
497 vector unsigned int v = vec_splat_u32 (1);
500 }]])], have_vmx_intrinsics=yes)
501 CFLAGS=$xserver_save_CFLAGS
504 [AC_HELP_STRING([--disable-vmx],
505 [disable VMX fast paths])],
506 [enable_vmx=$enableval], [enable_vmx=auto])
508 if test $enable_vmx = no ; then
509 have_vmx_intrinsics=disabled
512 if test $have_vmx_intrinsics = yes ; then
513 AC_DEFINE(USE_VMX, 1, [use VMX compiler intrinsics])
518 AC_MSG_RESULT($have_vmx_intrinsics)
519 if test $enable_vmx = yes && test $have_vmx_intrinsics = no ; then
520 AC_MSG_ERROR([VMX intrinsics not detected])
525 AM_CONDITIONAL(USE_VMX, test $have_vmx_intrinsics = yes)
527 dnl ==========================================================================
528 dnl Check if assembler is gas compatible and supports ARM SIMD instructions
530 AC_MSG_CHECKING(whether to use ARM SIMD assembler)
531 xserver_save_CFLAGS=$CFLAGS
532 CFLAGS="-x assembler-with-cpp $CFLAGS"
533 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
540 #error EABI is required (to be sure that calling conventions are compatible)
543 uqadd8 r0, r0, r0]])], have_arm_simd=yes)
544 CFLAGS=$xserver_save_CFLAGS
546 AC_ARG_ENABLE(arm-simd,
547 [AC_HELP_STRING([--disable-arm-simd],
548 [disable ARM SIMD fast paths])],
549 [enable_arm_simd=$enableval], [enable_arm_simd=auto])
551 if test $enable_arm_simd = no ; then
552 have_arm_simd=disabled
555 if test $have_arm_simd = yes ; then
556 AC_DEFINE(USE_ARM_SIMD, 1, [use ARM SIMD assembly optimizations])
559 AM_CONDITIONAL(USE_ARM_SIMD, test $have_arm_simd = yes)
561 AC_MSG_RESULT($have_arm_simd)
562 if test $enable_arm_simd = yes && test $have_arm_simd = no ; then
563 AC_MSG_ERROR([ARM SIMD intrinsics not detected])
566 dnl ==========================================================================
567 dnl Check if assembler is gas compatible and supports NEON instructions
569 AC_MSG_CHECKING(whether to use ARM NEON assembler)
570 xserver_save_CFLAGS=$CFLAGS
571 CFLAGS="-x assembler-with-cpp $CFLAGS"
572 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
577 .eabi_attribute 10, 0
581 #error EABI is required (to be sure that calling conventions are compatible)
584 vmovn.u16 d0, q0]])], have_arm_neon=yes)
585 CFLAGS=$xserver_save_CFLAGS
587 AC_ARG_ENABLE(arm-neon,
588 [AC_HELP_STRING([--disable-arm-neon],
589 [disable ARM NEON fast paths])],
590 [enable_arm_neon=$enableval], [enable_arm_neon=auto])
592 if test $enable_arm_neon = no ; then
593 have_arm_neon=disabled
596 if test $have_arm_neon = yes ; then
597 AC_DEFINE(USE_ARM_NEON, 1, [use ARM NEON assembly optimizations])
600 AM_CONDITIONAL(USE_ARM_NEON, test $have_arm_neon = yes)
602 AC_MSG_RESULT($have_arm_neon)
603 if test $enable_arm_neon = yes && test $have_arm_neon = no ; then
604 AC_MSG_ERROR([ARM NEON intrinsics not detected])
607 dnl ===========================================================================
610 if test "x$IWMMXT_CFLAGS" = "x" ; then
611 IWMMXT_CFLAGS="-march=iwmmxt -flax-vector-conversions -Winline"
614 have_iwmmxt_intrinsics=no
615 AC_MSG_CHECKING(whether to use ARM IWMMXT intrinsics)
616 xserver_save_CFLAGS=$CFLAGS
617 CFLAGS="$IWMMXT_CFLAGS $CFLAGS"
618 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
620 #error "IWMMXT is only available on ARM"
622 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5))
623 #error "Need GCC >= 4.5 for IWMMXT intrinsics"
625 #include <mmintrin.h>
630 } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
632 __m64 c = _mm_srli_si64 (a.v, b);
633 }]])], have_iwmmxt_intrinsics=yes)
634 CFLAGS=$xserver_save_CFLAGS
636 AC_ARG_ENABLE(arm-iwmmxt,
637 [AC_HELP_STRING([--disable-arm-iwmmxt],
638 [disable ARM IWMMXT fast paths])],
639 [enable_iwmmxt=$enableval], [enable_iwmmxt=auto])
641 if test $enable_iwmmxt = no ; then
642 have_iwmmxt_intrinsics=disabled
645 if test $have_iwmmxt_intrinsics = yes ; then
646 AC_DEFINE(USE_ARM_IWMMXT, 1, [use ARM IWMMXT compiler intrinsics])
651 AC_MSG_RESULT($have_iwmmxt_intrinsics)
652 if test $enable_iwmmxt = yes && test $have_iwmmxt_intrinsics = no ; then
653 AC_MSG_ERROR([IWMMXT intrinsics not detected])
656 AM_CONDITIONAL(USE_ARM_IWMMXT, test $have_iwmmxt_intrinsics = yes)
658 dnl ==========================================================================
659 dnl Check if assembler is gas compatible and supports MIPS DSPr2 instructions
662 AC_MSG_CHECKING(whether to use MIPS DSPr2 assembler)
663 xserver_save_CFLAGS=$CFLAGS
664 CFLAGS="-mdspr2 $CFLAGS"
666 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
667 #if !(defined(__mips__) && __mips_isa_rev >= 2)
668 #error MIPS DSPr2 is currently only available on MIPS32r2 platforms.
673 int c = 0, a = 0, b = 0;
674 __asm__ __volatile__ (
675 "precr.qb.ph %[c], %[a], %[b] \n\t"
677 : [a] "r" (a), [b] "r" (b)
680 }]])], have_mips_dspr2=yes)
681 CFLAGS=$xserver_save_CFLAGS
683 AC_ARG_ENABLE(mips-dspr2,
684 [AC_HELP_STRING([--disable-mips-dspr2],
685 [disable MIPS DSPr2 fast paths])],
686 [enable_mips_dspr2=$enableval], [enable_mips_dspr2=auto])
688 if test $enable_mips_dspr2 = no ; then
689 have_mips_dspr2=disabled
692 if test $have_mips_dspr2 = yes ; then
693 AC_DEFINE(USE_MIPS_DSPR2, 1, [use MIPS DSPr2 assembly optimizations])
696 AM_CONDITIONAL(USE_MIPS_DSPR2, test $have_mips_dspr2 = yes)
698 AC_MSG_RESULT($have_mips_dspr2)
699 if test $enable_mips_dspr2 = yes && test $have_mips_dspr2 = no ; then
700 AC_MSG_ERROR([MIPS DSPr2 instructions not detected])
703 dnl =========================================================================================
704 dnl Check for GNU-style inline assembly support
706 have_gcc_inline_asm=no
707 AC_MSG_CHECKING(whether to use GNU-style inline assembler)
708 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
710 /* Most modern architectures have a NOP instruction, so this is a fairly generic test. */
711 asm volatile ( "\tnop\n" : : : "cc", "memory" );
713 }]])], have_gcc_inline_asm=yes)
715 AC_ARG_ENABLE(gcc-inline-asm,
716 [AC_HELP_STRING([--disable-gcc-inline-asm],
717 [disable GNU-style inline assembler])],
718 [enable_gcc_inline_asm=$enableval], [enable_gcc_inline_asm=auto])
720 if test $enable_gcc_inline_asm = no ; then
721 have_gcc_inline_asm=disabled
724 if test $have_gcc_inline_asm = yes ; then
725 AC_DEFINE(USE_GCC_INLINE_ASM, 1, [use GNU-style inline assembler])
728 AC_MSG_RESULT($have_gcc_inline_asm)
729 if test $enable_gcc_inline_asm = yes && test $have_gcc_inline_asm = no ; then
730 AC_MSG_ERROR([GNU-style inline assembler not detected])
733 AM_CONDITIONAL(USE_GCC_INLINE_ASM, test $have_gcc_inline_asm = yes)
735 dnl ==============================================
736 dnl Static test programs
738 AC_ARG_ENABLE(static-testprogs,
739 [AC_HELP_STRING([--enable-static-testprogs],
740 [build test programs as static binaries [default=no]])],
741 [enable_static_testprogs=$enableval], [enable_static_testprogs=no])
743 TESTPROGS_EXTRA_LDFLAGS=
744 if test "x$enable_static_testprogs" = "xyes" ; then
745 TESTPROGS_EXTRA_LDFLAGS="-all-static"
747 AC_SUBST(TESTPROGS_EXTRA_LDFLAGS)
749 dnl ==============================================
752 AC_ARG_ENABLE(timers,
753 [AC_HELP_STRING([--enable-timers],
754 [enable TIMER_BEGIN and TIMER_END macros [default=no]])],
755 [enable_timers=$enableval], [enable_timers=no])
757 if test $enable_timers = yes ; then
758 AC_DEFINE(PIXMAN_TIMERS, 1, [enable TIMER_BEGIN/TIMER_END macros])
760 AC_SUBST(PIXMAN_TIMERS)
762 dnl ===================================
766 [AC_HELP_STRING([--enable-gtk],
767 [enable tests using GTK+ [default=auto]])],
768 [enable_gtk=$enableval], [enable_gtk=auto])
772 if test $enable_gtk = yes ; then
773 AC_CHECK_LIB([pixman-1], [pixman_version_string])
774 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1])
777 if test $enable_gtk = auto ; then
778 AC_CHECK_LIB([pixman-1], [pixman_version_string], [enable_gtk=auto], [enable_gtk=no])
781 if test $enable_gtk = auto ; then
782 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1], [enable_gtk=yes], [enable_gtk=no])
785 AM_CONDITIONAL(HAVE_GTK, [test "x$enable_gtk" = xyes])
792 dnl =====================================
793 dnl posix_memalign, sigaction, alarm, gettimeofday
795 AC_CHECK_FUNC(posix_memalign, have_posix_memalign=yes, have_posix_memalign=no)
796 if test x$have_posix_memalign = xyes; then
797 AC_DEFINE(HAVE_POSIX_MEMALIGN, 1, [Whether we have posix_memalign()])
800 AC_CHECK_FUNC(sigaction, have_sigaction=yes, have_sigaction=no)
801 if test x$have_sigaction = xyes; then
802 AC_DEFINE(HAVE_SIGACTION, 1, [Whether we have sigaction()])
805 AC_CHECK_FUNC(alarm, have_alarm=yes, have_alarm=no)
806 if test x$have_alarm = xyes; then
807 AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()])
810 AC_CHECK_HEADER([sys/mman.h],
811 [AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have <sys/mman.h>])])
813 AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no)
814 if test x$have_mmap = xyes; then
815 AC_DEFINE(HAVE_MMAP, 1, [Whether we have mmap()])
818 AC_CHECK_FUNC(mprotect, have_mprotect=yes, have_mprotect=no)
819 if test x$have_mprotect = xyes; then
820 AC_DEFINE(HAVE_MPROTECT, 1, [Whether we have mprotect()])
823 AC_CHECK_FUNC(getpagesize, have_getpagesize=yes, have_getpagesize=no)
824 if test x$have_getpagesize = xyes; then
825 AC_DEFINE(HAVE_GETPAGESIZE, 1, [Whether we have getpagesize()])
828 AC_CHECK_HEADER([fenv.h],
829 [AC_DEFINE(HAVE_FENV_H, [1], [Define to 1 if we have <fenv.h>])])
831 AC_CHECK_LIB(m, feenableexcept, have_feenableexcept=yes, have_feenableexcept=no)
832 if test x$have_feenableexcept = xyes; then
833 AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
836 AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
837 AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
838 if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then
839 AC_DEFINE(HAVE_GETTIMEOFDAY, 1, [Whether we have gettimeofday()])
842 dnl =====================================
843 dnl Thread local storage
845 AC_MSG_CHECKING(for thread local storage (TLS) support)
846 AC_CACHE_VAL(ac_cv_tls, [
848 keywords="__thread __declspec(thread)"
849 for kw in $keywords ; do
851 #if defined(__MINGW32__) && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
852 #error This MinGW version has broken __thread support
855 #error OpenBSD has broken __thread support
858 int $kw test;], [], ac_cv_tls=$kw)
861 AC_MSG_RESULT($ac_cv_tls)
863 if test "$ac_cv_tls" != "none"; then
864 AC_DEFINE_UNQUOTED([TLS], $ac_cv_tls, [The compiler supported TLS storage class])
871 m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl
875 static pthread_once_t once_control = PTHREAD_ONCE_INIT;
876 static pthread_key_t key;
881 pthread_key_create (&key, NULL);
889 if (pthread_once (&once_control, make_key) != 0)
895 value = pthread_getspecific (key);
898 value = malloc (100);
899 pthread_setspecific (key, value);
906 AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
907 if test "z$support_for_pthread_setspecific" != "zyes"; then
908 PIXMAN_LINK_WITH_ENV(
909 [$1], [pthread_test_program],
910 [PTHREAD_CFLAGS="$CFLAGS"
912 PTHREAD_LDFLAGS="$LDFLAGS"
913 support_for_pthread_setspecific=yes])
917 if test $ac_cv_tls = none ; then
918 support_for_pthread_setspecific=no
920 AC_MSG_CHECKING(for pthread_setspecific)
922 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LIBS="-lpthread"])
923 PIXMAN_CHECK_PTHREAD([CFLAGS="-pthread"; LDFLAGS="-pthread"])
924 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LDFLAGS="-lroot"])
926 if test $support_for_pthread_setspecific = yes; then
927 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
928 AC_DEFINE([HAVE_PTHREAD_SETSPECIFIC], [], [Whether pthread_setspecific() is supported])
931 AC_MSG_RESULT($support_for_pthread_setspecific);
934 AC_SUBST(TOOLCHAIN_SUPPORTS__THREAD)
935 AC_SUBST(HAVE_PTHREAD_SETSPECIFIC)
936 AC_SUBST(PTHREAD_LDFLAGS)
937 AC_SUBST(PTHREAD_LIBS)
939 dnl =====================================
940 dnl __attribute__((constructor))
942 support_for_attribute_constructor=no
944 AC_MSG_CHECKING(for __attribute__((constructor)))
945 AC_LINK_IFELSE([AC_LANG_SOURCE([[
946 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
947 /* attribute 'constructor' is supported since gcc 2.7, but some compilers
948 * may only pretend to be gcc, so let's try to actually use it
951 static void __attribute__((constructor)) constructor_function () { x = 0; }
952 int main (void) { return x; }
954 #error not gcc or gcc version is older than 2.7
956 ]])], support_for_attribute_constructor=yes)
958 if test x$support_for_attribute_constructor = xyes; then
959 AC_DEFINE([TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR],
960 [],[Whether the tool chain supports __attribute__((constructor))])
963 AC_MSG_RESULT($support_for_attribute_constructor)
964 AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR)
966 dnl ==================
969 AC_ARG_ENABLE(libpng, AS_HELP_STRING([--enable-libpng], [Build support for libpng (default: auto)]),
970 [have_libpng=$enableval], [have_libpng=auto])
972 case x$have_libpng in
973 xyes) PKG_CHECK_MODULES(PNG, [libpng]) ;;
975 *) PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no) ;;
978 if test x$have_libpng = xyes; then
979 AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng])
982 AC_SUBST(HAVE_LIBPNG)
984 AC_OUTPUT([pixman-1.pc
985 pixman-1-uninstalled.pc
988 pixman/pixman-version.h
992 m4_if(m4_eval(pixman_minor % 2), [1], [
994 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
996 echo " Thanks for testing this development snapshot of pixman. Please"
997 echo " report any problems you find, either by sending email to "
999 echo " pixman@lists.freedesktop.org"
1001 echo " or by filing a bug at "
1003 echo " https://bugs.freedesktop.org/enter_bug.cgi?product=pixman "
1005 echo " If you are looking for a stable release of pixman, please note "
1006 echo " that stable releases have _even_ minor version numbers. Ie., "
1007 echo " pixman-0.]m4_eval(pixman_minor & ~1)[.x are stable releases, whereas pixman-$PIXMAN_VERSION_MAJOR.$PIXMAN_VERSION_MINOR.$PIXMAN_VERSION_MICRO is a "
1008 echo " development snapshot that may contain bugs and experimental "
1011 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"