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], 1)
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 ===========================================================================
276 if test "x$MMX_CFLAGS" = "x" ; then
277 if test "x$SUNCC" = "xyes"; then
278 # Sun Studio doesn't have an -xarch=mmx flag, so we have to use sse
279 # but if we're building 64-bit, mmx & sse support is on by default and
280 # -xarch=sse throws an error instead
281 if test "$AMD64_ABI" = "no" ; then
282 MMX_CFLAGS="-xarch=sse"
285 MMX_CFLAGS="-mmmx -Winline"
289 have_mmx_intrinsics=no
290 AC_MSG_CHECKING(whether to use MMX intrinsics)
291 xserver_save_CFLAGS=$CFLAGS
292 CFLAGS="$MMX_CFLAGS $CFLAGS"
293 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
294 #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
295 #error "Need GCC >= 3.4 for MMX intrinsics"
297 #include <mmintrin.h>
299 __m64 v = _mm_cvtsi32_si64 (1);
300 return _mm_cvtsi64_si32 (v);
301 }]])], have_mmx_intrinsics=yes)
302 CFLAGS=$xserver_save_CFLAGS
305 [AC_HELP_STRING([--disable-mmx],
306 [disable x86 MMX fast paths])],
307 [enable_mmx=$enableval], [enable_mmx=auto])
309 if test $enable_mmx = no ; then
310 have_mmx_intrinsics=disabled
313 if test $have_mmx_intrinsics = yes ; then
314 AC_DEFINE(USE_X86_MMX, 1, [use x86 MMX compiler intrinsics])
319 AC_MSG_RESULT($have_mmx_intrinsics)
320 if test $enable_mmx = yes && test $have_mmx_intrinsics = no ; then
321 AC_MSG_ERROR([x86 MMX intrinsics not detected])
324 AM_CONDITIONAL(USE_X86_MMX, test $have_mmx_intrinsics = yes)
326 dnl ===========================================================================
329 if test "x$SSE2_CFLAGS" = "x" ; then
330 if test "x$SUNCC" = "xyes"; then
331 # SSE2 is enabled by default in the Sun Studio 64-bit environment
332 if test "$AMD64_ABI" = "no" ; then
333 SSE2_CFLAGS="-xarch=sse2"
336 SSE2_CFLAGS="-msse2 -Winline"
340 have_sse2_intrinsics=no
341 AC_MSG_CHECKING(whether to use SSE2 intrinsics)
342 xserver_save_CFLAGS=$CFLAGS
343 CFLAGS="$SSE2_CFLAGS $CFLAGS"
345 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
346 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2))
347 # if !defined(__amd64__) && !defined(__x86_64__)
348 # error "Need GCC >= 4.2 for SSE2 intrinsics on x86"
351 #include <mmintrin.h>
352 #include <xmmintrin.h>
353 #include <emmintrin.h>
355 __m128i a = _mm_set1_epi32 (0), b = _mm_set1_epi32 (0), c;
356 c = _mm_xor_si128 (a, b);
358 }]])], have_sse2_intrinsics=yes)
359 CFLAGS=$xserver_save_CFLAGS
362 [AC_HELP_STRING([--disable-sse2],
363 [disable SSE2 fast paths])],
364 [enable_sse2=$enableval], [enable_sse2=auto])
366 if test $enable_sse2 = no ; then
367 have_sse2_intrinsics=disabled
370 if test $have_sse2_intrinsics = yes ; then
371 AC_DEFINE(USE_SSE2, 1, [use SSE2 compiler intrinsics])
374 AC_MSG_RESULT($have_sse2_intrinsics)
375 if test $enable_sse2 = yes && test $have_sse2_intrinsics = no ; then
376 AC_MSG_ERROR([SSE2 intrinsics not detected])
379 AM_CONDITIONAL(USE_SSE2, test $have_sse2_intrinsics = yes)
381 dnl ===========================================================================
382 dnl Other special flags needed when building code using MMX or SSE instructions
385 # When building 32-bit binaries, apply a mapfile to ensure that the
386 # binaries aren't flagged as only able to run on MMX+SSE capable CPUs
387 # since they check at runtime before using those instructions.
388 # Not all linkers grok the mapfile format so we check for that first.
389 if test "$AMD64_ABI" = "no" ; then
391 AC_MSG_CHECKING(whether to use a hardware capability map file)
392 hwcap_save_LDFLAGS="$LDFLAGS"
393 HWCAP_LDFLAGS='-Wl,-M,$(srcdir)/solaris-hwcap.mapfile'
394 LDFLAGS="$LDFLAGS -Wl,-M,pixman/solaris-hwcap.mapfile"
395 AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
396 use_hwcap_mapfile=yes,
398 LDFLAGS="$hwcap_save_LDFLAGS"
399 AC_MSG_RESULT($use_hwcap_mapfile)
401 if test "x$MMX_LDFLAGS" = "x" ; then
402 MMX_LDFLAGS="$HWCAP_LDFLAGS"
404 if test "x$SSE2_LDFLAGS" = "x" ; then
405 SSE2_LDFLAGS="$HWCAP_LDFLAGS"
410 AC_SUBST(IWMMXT_CFLAGS)
412 AC_SUBST(MMX_LDFLAGS)
413 AC_SUBST(SSE2_CFLAGS)
414 AC_SUBST(SSE2_LDFLAGS)
416 dnl ===========================================================================
417 dnl Check for VMX/Altivec
418 if test -n "`$CC -v 2>&1 | grep version | grep Apple`"; then
419 VMX_CFLAGS="-faltivec"
421 VMX_CFLAGS="-maltivec -mabi=altivec"
424 have_vmx_intrinsics=no
425 AC_MSG_CHECKING(whether to use VMX/Altivec intrinsics)
426 xserver_save_CFLAGS=$CFLAGS
427 CFLAGS="$VMX_CFLAGS $CFLAGS"
428 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
429 #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
430 #error "Need GCC >= 3.4 for sane altivec support"
434 vector unsigned int v = vec_splat_u32 (1);
437 }]])], have_vmx_intrinsics=yes)
438 CFLAGS=$xserver_save_CFLAGS
441 [AC_HELP_STRING([--disable-vmx],
442 [disable VMX fast paths])],
443 [enable_vmx=$enableval], [enable_vmx=auto])
445 if test $enable_vmx = no ; then
446 have_vmx_intrinsics=disabled
449 if test $have_vmx_intrinsics = yes ; then
450 AC_DEFINE(USE_VMX, 1, [use VMX compiler intrinsics])
455 AC_MSG_RESULT($have_vmx_intrinsics)
456 if test $enable_vmx = yes && test $have_vmx_intrinsics = no ; then
457 AC_MSG_ERROR([VMX intrinsics not detected])
462 AM_CONDITIONAL(USE_VMX, test $have_vmx_intrinsics = yes)
464 dnl ==========================================================================
465 dnl Check if assembler is gas compatible and supports ARM SIMD instructions
467 AC_MSG_CHECKING(whether to use ARM SIMD assembler)
468 xserver_save_CFLAGS=$CFLAGS
469 CFLAGS="-x assembler-with-cpp $CFLAGS"
470 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
477 #error EABI is required (to be sure that calling conventions are compatible)
480 uqadd8 r0, r0, r0]])], have_arm_simd=yes)
481 CFLAGS=$xserver_save_CFLAGS
483 AC_ARG_ENABLE(arm-simd,
484 [AC_HELP_STRING([--disable-arm-simd],
485 [disable ARM SIMD fast paths])],
486 [enable_arm_simd=$enableval], [enable_arm_simd=auto])
488 if test $enable_arm_simd = no ; then
489 have_arm_simd=disabled
492 if test $have_arm_simd = yes ; then
493 AC_DEFINE(USE_ARM_SIMD, 1, [use ARM SIMD assembly optimizations])
496 AM_CONDITIONAL(USE_ARM_SIMD, test $have_arm_simd = yes)
498 AC_MSG_RESULT($have_arm_simd)
499 if test $enable_arm_simd = yes && test $have_arm_simd = no ; then
500 AC_MSG_ERROR([ARM SIMD intrinsics not detected])
503 dnl ==========================================================================
504 dnl Check if assembler is gas compatible and supports NEON instructions
506 AC_MSG_CHECKING(whether to use ARM NEON assembler)
507 xserver_save_CFLAGS=$CFLAGS
508 CFLAGS="-x assembler-with-cpp $CFLAGS"
509 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
514 .eabi_attribute 10, 0
518 #error EABI is required (to be sure that calling conventions are compatible)
521 vmovn.u16 d0, q0]])], have_arm_neon=yes)
522 CFLAGS=$xserver_save_CFLAGS
524 AC_ARG_ENABLE(arm-neon,
525 [AC_HELP_STRING([--disable-arm-neon],
526 [disable ARM NEON fast paths])],
527 [enable_arm_neon=$enableval], [enable_arm_neon=auto])
529 if test $enable_arm_neon = no ; then
530 have_arm_neon=disabled
533 if test $have_arm_neon = yes ; then
534 AC_DEFINE(USE_ARM_NEON, 1, [use ARM NEON assembly optimizations])
537 AM_CONDITIONAL(USE_ARM_NEON, test $have_arm_neon = yes)
539 AC_MSG_RESULT($have_arm_neon)
540 if test $enable_arm_neon = yes && test $have_arm_neon = no ; then
541 AC_MSG_ERROR([ARM NEON intrinsics not detected])
544 dnl ===========================================================================
547 if test "x$IWMMXT_CFLAGS" = "x" ; then
548 IWMMXT_CFLAGS="-march=iwmmxt -flax-vector-conversions -Winline"
551 have_iwmmxt_intrinsics=no
552 AC_MSG_CHECKING(whether to use ARM IWMMXT intrinsics)
553 xserver_save_CFLAGS=$CFLAGS
554 CFLAGS="$IWMMXT_CFLAGS $CFLAGS"
555 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
557 #error "IWMMXT is only available on ARM"
559 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6))
560 #error "Need GCC >= 4.6 for IWMMXT intrinsics"
562 #include <mmintrin.h>
567 } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
569 __m64 c = _mm_srli_si64 (a.v, b);
570 }]])], have_iwmmxt_intrinsics=yes)
571 CFLAGS=$xserver_save_CFLAGS
573 AC_ARG_ENABLE(arm-iwmmxt,
574 [AC_HELP_STRING([--disable-arm-iwmmxt],
575 [disable ARM IWMMXT fast paths])],
576 [enable_iwmmxt=$enableval], [enable_iwmmxt=auto])
578 if test $enable_iwmmxt = no ; then
579 have_iwmmxt_intrinsics=disabled
582 if test $have_iwmmxt_intrinsics = yes ; then
583 AC_DEFINE(USE_ARM_IWMMXT, 1, [use ARM IWMMXT compiler intrinsics])
588 AC_MSG_RESULT($have_iwmmxt_intrinsics)
589 if test $enable_iwmmxt = yes && test $have_iwmmxt_intrinsics = no ; then
590 AC_MSG_ERROR([IWMMXT intrinsics not detected])
593 AM_CONDITIONAL(USE_ARM_IWMMXT, test $have_iwmmxt_intrinsics = yes)
595 dnl =========================================================================================
596 dnl Check for GNU-style inline assembly support
598 have_gcc_inline_asm=no
599 AC_MSG_CHECKING(whether to use GNU-style inline assembler)
600 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
602 /* Most modern architectures have a NOP instruction, so this is a fairly generic test. */
603 asm volatile ( "\tnop\n" : : : "cc", "memory" );
605 }]])], have_gcc_inline_asm=yes)
607 AC_ARG_ENABLE(gcc-inline-asm,
608 [AC_HELP_STRING([--disable-gcc-inline-asm],
609 [disable GNU-style inline assembler])],
610 [enable_gcc_inline_asm=$enableval], [enable_gcc_inline_asm=auto])
612 if test $enable_gcc_inline_asm = no ; then
613 have_gcc_inline_asm=disabled
616 if test $have_gcc_inline_asm = yes ; then
617 AC_DEFINE(USE_GCC_INLINE_ASM, 1, [use GNU-style inline assembler])
620 AC_MSG_RESULT($have_gcc_inline_asm)
621 if test $enable_gcc_inline_asm = yes && test $have_gcc_inline_asm = no ; then
622 AC_MSG_ERROR([GNU-style inline assembler not detected])
625 AM_CONDITIONAL(USE_GCC_INLINE_ASM, test $have_gcc_inline_asm = yes)
627 dnl ==============================================
628 dnl Static test programs
630 AC_ARG_ENABLE(static-testprogs,
631 [AC_HELP_STRING([--enable-static-testprogs],
632 [build test programs as static binaries [default=no]])],
633 [enable_static_testprogs=$enableval], [enable_static_testprogs=no])
635 TESTPROGS_EXTRA_LDFLAGS=
636 if test "x$enable_static_testprogs" = "xyes" ; then
637 TESTPROGS_EXTRA_LDFLAGS="-all-static"
639 AC_SUBST(TESTPROGS_EXTRA_LDFLAGS)
641 dnl ==============================================
644 AC_ARG_ENABLE(timers,
645 [AC_HELP_STRING([--enable-timers],
646 [enable TIMER_BEGIN and TIMER_END macros [default=no]])],
647 [enable_timers=$enableval], [enable_timers=no])
649 if test $enable_timers = yes ; then
650 AC_DEFINE(PIXMAN_TIMERS, 1, [enable TIMER_BEGIN/TIMER_END macros])
652 AC_SUBST(PIXMAN_TIMERS)
654 dnl ===================================
658 [AC_HELP_STRING([--enable-gtk],
659 [enable tests using GTK+ [default=auto]])],
660 [enable_gtk=$enableval], [enable_gtk=auto])
664 if test $enable_gtk = yes ; then
665 AC_CHECK_LIB([pixman-1], [pixman_version_string])
666 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1])
669 if test $enable_gtk = auto ; then
670 AC_CHECK_LIB([pixman-1], [pixman_version_string], [enable_gtk=auto], [enable_gtk=no])
673 if test $enable_gtk = auto ; then
674 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1], [enable_gtk=yes], [enable_gtk=no])
677 AM_CONDITIONAL(HAVE_GTK, [test "x$enable_gtk" = xyes])
684 dnl =====================================
685 dnl posix_memalign, sigaction, alarm, gettimeofday
687 AC_CHECK_FUNC(posix_memalign, have_posix_memalign=yes, have_posix_memalign=no)
688 if test x$have_posix_memalign = xyes; then
689 AC_DEFINE(HAVE_POSIX_MEMALIGN, 1, [Whether we have posix_memalign()])
692 AC_CHECK_FUNC(sigaction, have_sigaction=yes, have_sigaction=no)
693 if test x$have_sigaction = xyes; then
694 AC_DEFINE(HAVE_SIGACTION, 1, [Whether we have sigaction()])
697 AC_CHECK_FUNC(alarm, have_alarm=yes, have_alarm=no)
698 if test x$have_alarm = xyes; then
699 AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()])
702 AC_CHECK_HEADER([sys/mman.h],
703 [AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have <sys/mman.h>])])
705 AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no)
706 if test x$have_mmap = xyes; then
707 AC_DEFINE(HAVE_MMAP, 1, [Whether we have mmap()])
710 AC_CHECK_FUNC(mprotect, have_mprotect=yes, have_mprotect=no)
711 if test x$have_mprotect = xyes; then
712 AC_DEFINE(HAVE_MPROTECT, 1, [Whether we have mprotect()])
715 AC_CHECK_FUNC(getpagesize, have_getpagesize=yes, have_getpagesize=no)
716 if test x$have_getpagesize = xyes; then
717 AC_DEFINE(HAVE_GETPAGESIZE, 1, [Whether we have getpagesize()])
720 AC_CHECK_HEADER([fenv.h],
721 [AC_DEFINE(HAVE_FENV_H, [1], [Define to 1 if we have <fenv.h>])])
723 AC_CHECK_LIB(m, feenableexcept, have_feenableexcept=yes, have_feenableexcept=no)
724 if test x$have_feenableexcept = xyes; then
725 AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
728 AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
729 AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
730 if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then
731 AC_DEFINE(HAVE_GETTIMEOFDAY, 1, [Whether we have gettimeofday()])
734 dnl =====================================
735 dnl Thread local storage
737 support_for__thread=no
739 AC_MSG_CHECKING(for __thread)
740 AC_LINK_IFELSE([AC_LANG_SOURCE([[
741 #if defined(__MINGW32__) && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
742 #error This MinGW version has broken __thread support
745 #error OpenBSD has broken __thread support
747 static __thread int x ;
748 int main () { x = 123; return x; }
749 ]])], support_for__thread=yes)
751 if test $support_for__thread = yes; then
752 AC_DEFINE([TOOLCHAIN_SUPPORTS__THREAD],[],[Whether the tool chain supports __thread])
755 AC_MSG_RESULT($support_for__thread)
761 m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl
765 static pthread_once_t once_control = PTHREAD_ONCE_INIT;
766 static pthread_key_t key;
771 pthread_key_create (&key, NULL);
779 if (pthread_once (&once_control, make_key) != 0)
785 value = pthread_getspecific (key);
788 value = malloc (100);
789 pthread_setspecific (key, value);
796 AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
797 if test "z$support_for_pthread_setspecific" != "zyes"; then
798 PIXMAN_LINK_WITH_ENV(
799 [$1], [pthread_test_program],
800 [PTHREAD_CFLAGS="$CFLAGS"
802 PTHREAD_LDFLAGS="$LDFLAGS"
803 support_for_pthread_setspecific=yes])
807 if test $support_for__thread = no; then
808 support_for_pthread_setspecific=no
810 AC_MSG_CHECKING(for pthread_setspecific)
812 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LIBS="-lpthread"])
813 PIXMAN_CHECK_PTHREAD([CFLAGS="-pthread"; LDFLAGS="-pthread"])
814 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LDFLAGS="-lroot"])
816 if test $support_for_pthread_setspecific = yes; then
817 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
818 AC_DEFINE([HAVE_PTHREAD_SETSPECIFIC], [], [Whether pthread_setspecific() is supported])
821 AC_MSG_RESULT($support_for_pthread_setspecific);
824 AC_SUBST(TOOLCHAIN_SUPPORTS__THREAD)
825 AC_SUBST(HAVE_PTHREAD_SETSPECIFIC)
826 AC_SUBST(PTHREAD_LDFLAGS)
827 AC_SUBST(PTHREAD_LIBS)
829 dnl =====================================
830 dnl __attribute__((constructor))
832 support_for_attribute_constructor=no
834 AC_MSG_CHECKING(for __attribute__((constructor)))
835 AC_LINK_IFELSE([AC_LANG_SOURCE([[
836 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
837 /* attribute 'constructor' is supported since gcc 2.7, but some compilers
838 * may only pretend to be gcc, so let's try to actually use it
841 static void __attribute__((constructor)) constructor_function () { x = 0; }
842 int main (void) { return x; }
844 #error not gcc or gcc version is older than 2.7
846 ]])], support_for_attribute_constructor=yes)
848 if test x$support_for_attribute_constructor = xyes; then
849 AC_DEFINE([TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR],
850 [],[Whether the tool chain supports __attribute__((constructor))])
853 AC_MSG_RESULT($support_for_attribute_constructor)
854 AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR)
856 dnl ==================
859 AC_ARG_ENABLE(libpng, AS_HELP_STRING([--enable-libpng], [Build support for libpng (default: auto)]),
860 [have_libpng=$enableval], [have_libpng=auto])
862 case x$have_libpng in
863 xyes) PKG_CHECK_MODULES(PNG, [libpng]) ;;
865 *) PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no) ;;
868 if test x$have_libpng = xyes; then
869 AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng])
872 AC_SUBST(HAVE_LIBPNG)
874 AC_OUTPUT([pixman-1.pc
875 pixman-1-uninstalled.pc
878 pixman/pixman-version.h
882 m4_if(m4_eval(pixman_minor % 2), [1], [
884 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
886 echo " Thanks for testing this development snapshot of pixman. Please"
887 echo " report any problems you find, either by sending email to "
889 echo " pixman@lists.freedesktop.org"
891 echo " or by filing a bug at "
893 echo " https://bugs.freedesktop.org/enter_bug.cgi?product=pixman "
895 echo " If you are looking for a stable release of pixman, please note "
896 echo " that stable releases have _even_ minor version numbers. Ie., "
897 echo " pixman-0.]m4_eval(pixman_minor & ~1)[.x are stable releases, whereas pixman-$PIXMAN_VERSION_MAJOR.$PIXMAN_VERSION_MINOR.$PIXMAN_VERSION_MICRO is a "
898 echo " development snapshot that may contain bugs and experimental "
901 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"