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 even MICRO
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], 23)
57 m4_define([pixman_micro], 5)
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 $SUNCC = yes && \
153 test "$test_CFLAGS" == "" && \
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="$HWCAP_LDFLAGS"
411 AC_SUBST(MMX_LDFLAGS)
412 AC_SUBST(SSE2_CFLAGS)
413 AC_SUBST(SSE2_LDFLAGS)
415 dnl ===========================================================================
416 dnl Check for VMX/Altivec
417 if test -n "`$CC -v 2>&1 | grep version | grep Apple`"; then
418 VMX_CFLAGS="-faltivec"
420 VMX_CFLAGS="-maltivec -mabi=altivec"
423 have_vmx_intrinsics=no
424 AC_MSG_CHECKING(whether to use VMX/Altivec intrinsics)
425 xserver_save_CFLAGS=$CFLAGS
426 CFLAGS="$VMX_CFLAGS $CFLAGS"
427 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
428 #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
429 error "Need GCC >= 3.4 for sane altivec support"
433 vector unsigned int v = vec_splat_u32 (1);
436 }]])], have_vmx_intrinsics=yes)
437 CFLAGS=$xserver_save_CFLAGS
440 [AC_HELP_STRING([--disable-vmx],
441 [disable VMX fast paths])],
442 [enable_vmx=$enableval], [enable_vmx=auto])
444 if test $enable_vmx = no ; then
445 have_vmx_intrinsics=disabled
448 if test $have_vmx_intrinsics = yes ; then
449 AC_DEFINE(USE_VMX, 1, [use VMX compiler intrinsics])
454 AC_MSG_RESULT($have_vmx_intrinsics)
455 if test $enable_vmx = yes && test $have_vmx_intrinsics = no ; then
456 AC_MSG_ERROR([VMX intrinsics not detected])
461 AM_CONDITIONAL(USE_VMX, test $have_vmx_intrinsics = yes)
463 dnl ==========================================================================
464 dnl Check if assembler is gas compatible and supports ARM SIMD instructions
466 AC_MSG_CHECKING(whether to use ARM SIMD assembler)
467 xserver_save_CFLAGS=$CFLAGS
468 CFLAGS="-x assembler-with-cpp $CFLAGS"
469 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
476 #error EABI is required (to be sure that calling conventions are compatible)
479 uqadd8 r0, r0, r0]])], have_arm_simd=yes)
480 CFLAGS=$xserver_save_CFLAGS
482 AC_ARG_ENABLE(arm-simd,
483 [AC_HELP_STRING([--disable-arm-simd],
484 [disable ARM SIMD fast paths])],
485 [enable_arm_simd=$enableval], [enable_arm_simd=auto])
487 if test $enable_arm_simd = no ; then
488 have_arm_simd=disabled
491 if test $have_arm_simd = yes ; then
492 AC_DEFINE(USE_ARM_SIMD, 1, [use ARM SIMD assembly optimizations])
495 AM_CONDITIONAL(USE_ARM_SIMD, test $have_arm_simd = yes)
497 AC_MSG_RESULT($have_arm_simd)
498 if test $enable_arm_simd = yes && test $have_arm_simd = no ; then
499 AC_MSG_ERROR([ARM SIMD intrinsics not detected])
502 dnl ==========================================================================
503 dnl Check if assembler is gas compatible and supports NEON instructions
505 AC_MSG_CHECKING(whether to use ARM NEON assembler)
506 xserver_save_CFLAGS=$CFLAGS
507 CFLAGS="-x assembler-with-cpp $CFLAGS"
508 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
513 .eabi_attribute 10, 0
517 #error EABI is required (to be sure that calling conventions are compatible)
520 vmovn.u16 d0, q0]])], have_arm_neon=yes)
521 CFLAGS=$xserver_save_CFLAGS
523 AC_ARG_ENABLE(arm-neon,
524 [AC_HELP_STRING([--disable-arm-neon],
525 [disable ARM NEON fast paths])],
526 [enable_arm_neon=$enableval], [enable_arm_neon=auto])
528 if test $enable_arm_neon = no ; then
529 have_arm_neon=disabled
532 if test $have_arm_neon = yes ; then
533 AC_DEFINE(USE_ARM_NEON, 1, [use ARM NEON assembly optimizations])
536 AM_CONDITIONAL(USE_ARM_NEON, test $have_arm_neon = yes)
538 AC_MSG_RESULT($have_arm_neon)
539 if test $enable_arm_neon = yes && test $have_arm_neon = no ; then
540 AC_MSG_ERROR([ARM NEON intrinsics not detected])
543 dnl ===========================================================================
546 if test "x$IWMMXT_CFLAGS" = "x" ; then
547 IWMMXT_CFLAGS="-march=iwmmxt -flax-vector-conversions -Winline"
550 have_iwmmxt_intrinsics=no
551 AC_MSG_CHECKING(whether to use ARM IWMMXT intrinsics)
552 xserver_save_CFLAGS=$CFLAGS
553 CFLAGS="$IWMMXT_CFLAGS $CFLAGS"
555 #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 3 && __GNUC_MINOR__ < 6))
556 #error "Need GCC >= 4.6 for IWMMXT intrinsics"
558 #include <mmintrin.h>
563 } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
565 __m64 c = _mm_srli_si64 (a.v, b);
566 }], have_iwmmxt_intrinsics=yes)
567 CFLAGS=$xserver_save_CFLAGS
569 AC_ARG_ENABLE(arm-iwmmxt,
570 [AC_HELP_STRING([--disable-arm-iwmmxt],
571 [disable ARM IWMMXT fast paths])],
572 [enable_iwmmxt=$enableval], [enable_iwmmxt=auto])
574 if test $enable_iwmmxt = no ; then
575 have_iwmmxt_intrinsics=disabled
578 if test $have_iwmmxt_intrinsics = yes ; then
579 AC_DEFINE(USE_ARM_IWMMXT, 1, [use ARM IWMMXT compiler intrinsics])
584 AC_MSG_RESULT($have_iwmmxt_intrinsics)
585 if test $enable_iwmmxt = yes && test $have_iwmmxt_intrinsics = no ; then
586 AC_MSG_ERROR([IWMMXT intrinsics not detected])
589 AM_CONDITIONAL(USE_ARM_IWMMXT, test $have_iwmmxt_intrinsics = yes)
591 dnl =========================================================================================
592 dnl Check for GNU-style inline assembly support
594 have_gcc_inline_asm=no
595 AC_MSG_CHECKING(whether to use GNU-style inline assembler)
596 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
598 /* Most modern architectures have a NOP instruction, so this is a fairly generic test. */
599 asm volatile ( "\tnop\n" : : : "cc", "memory" );
601 }]])], have_gcc_inline_asm=yes)
603 AC_ARG_ENABLE(gcc-inline-asm,
604 [AC_HELP_STRING([--disable-gcc-inline-asm],
605 [disable GNU-style inline assembler])],
606 [enable_gcc_inline_asm=$enableval], [enable_gcc_inline_asm=auto])
608 if test $enable_gcc_inline_asm = no ; then
609 have_gcc_inline_asm=disabled
612 if test $have_gcc_inline_asm = yes ; then
613 AC_DEFINE(USE_GCC_INLINE_ASM, 1, [use GNU-style inline assembler])
616 AC_MSG_RESULT($have_gcc_inline_asm)
617 if test $enable_gcc_inline_asm = yes && test $have_gcc_inline_asm = no ; then
618 AC_MSG_ERROR([GNU-style inline assembler not detected])
621 AM_CONDITIONAL(USE_GCC_INLINE_ASM, test $have_gcc_inline_asm = yes)
623 dnl ==============================================
624 dnl Static test programs
626 AC_ARG_ENABLE(static-testprogs,
627 [AC_HELP_STRING([--enable-static-testprogs],
628 [build test programs as static binaries [default=no]])],
629 [enable_static_testprogs=$enableval], [enable_static_testprogs=no])
631 TESTPROGS_EXTRA_LDFLAGS=
632 if test "x$enable_static_testprogs" = "xyes" ; then
633 TESTPROGS_EXTRA_LDFLAGS="-all-static"
635 AC_SUBST(TESTPROGS_EXTRA_LDFLAGS)
637 dnl ==============================================
640 AC_ARG_ENABLE(timers,
641 [AC_HELP_STRING([--enable-timers],
642 [enable TIMER_BEGIN and TIMER_END macros [default=no]])],
643 [enable_timers=$enableval], [enable_timers=no])
645 if test $enable_timers = yes ; then
646 AC_DEFINE(PIXMAN_TIMERS, 1, [enable TIMER_BEGIN/TIMER_END macros])
648 AC_SUBST(PIXMAN_TIMERS)
650 dnl ===================================
654 [AC_HELP_STRING([--enable-gtk],
655 [enable tests using GTK+ [default=auto]])],
656 [enable_gtk=$enableval], [enable_gtk=auto])
660 if test $enable_gtk = yes ; then
661 AC_CHECK_LIB([pixman-1], [pixman_version_string])
662 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1])
665 if test $enable_gtk = auto ; then
666 AC_CHECK_LIB([pixman-1], [pixman_version_string], [enable_gtk=auto], [enable_gtk=no])
669 if test $enable_gtk = auto ; then
670 PKG_CHECK_MODULES(GTK, [gtk+-2.0 pixman-1], [enable_gtk=yes], [enable_gtk=no])
673 AM_CONDITIONAL(HAVE_GTK, [test "x$enable_gtk" = xyes])
680 dnl =====================================
681 dnl posix_memalign, sigaction, alarm, gettimeofday
683 AC_CHECK_FUNC(posix_memalign, have_posix_memalign=yes, have_posix_memalign=no)
684 if test x$have_posix_memalign = xyes; then
685 AC_DEFINE(HAVE_POSIX_MEMALIGN, 1, [Whether we have posix_memalign()])
688 AC_CHECK_FUNC(sigaction, have_sigaction=yes, have_sigaction=no)
689 if test x$have_sigaction = xyes; then
690 AC_DEFINE(HAVE_SIGACTION, 1, [Whether we have sigaction()])
693 AC_CHECK_FUNC(alarm, have_alarm=yes, have_alarm=no)
694 if test x$have_alarm = xyes; then
695 AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()])
698 AC_CHECK_HEADER([sys/mman.h],
699 [AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have <sys/mman.h>])])
701 AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no)
702 if test x$have_mmap = xyes; then
703 AC_DEFINE(HAVE_MMAP, 1, [Whether we have mmap()])
706 AC_CHECK_FUNC(mprotect, have_mprotect=yes, have_mprotect=no)
707 if test x$have_mprotect = xyes; then
708 AC_DEFINE(HAVE_MPROTECT, 1, [Whether we have mprotect()])
711 AC_CHECK_FUNC(getpagesize, have_getpagesize=yes, have_getpagesize=no)
712 if test x$have_getpagesize = xyes; then
713 AC_DEFINE(HAVE_GETPAGESIZE, 1, [Whether we have getpagesize()])
716 AC_CHECK_HEADER([fenv.h],
717 [AC_DEFINE(HAVE_FENV_H, [1], [Define to 1 if we have <fenv.h>])])
719 AC_CHECK_LIB(m, feenableexcept, have_feenableexcept=yes, have_feenableexcept=no)
720 if test x$have_feenableexcept = xyes; then
721 AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
724 AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
725 AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
726 if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then
727 AC_DEFINE(HAVE_GETTIMEOFDAY, 1, [Whether we have gettimeofday()])
730 dnl =====================================
731 dnl Thread local storage
733 support_for__thread=no
735 AC_MSG_CHECKING(for __thread)
736 AC_LINK_IFELSE([AC_LANG_SOURCE([[
737 #if defined(__MINGW32__) && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
738 #error This MinGW version has broken __thread support
741 #error OpenBSD has broken __thread support
743 static __thread int x ;
744 int main () { x = 123; return x; }
745 ]])], support_for__thread=yes)
747 if test $support_for__thread = yes; then
748 AC_DEFINE([TOOLCHAIN_SUPPORTS__THREAD],[],[Whether the tool chain supports __thread])
751 AC_MSG_RESULT($support_for__thread)
757 m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl
761 static pthread_once_t once_control = PTHREAD_ONCE_INIT;
762 static pthread_key_t key;
767 pthread_key_create (&key, NULL);
775 if (pthread_once (&once_control, make_key) != 0)
781 value = pthread_getspecific (key);
784 value = malloc (100);
785 pthread_setspecific (key, value);
792 AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
793 if test "z$support_for_pthread_setspecific" != "zyes"; then
794 PIXMAN_LINK_WITH_ENV(
795 [$1], [pthread_test_program],
796 [PTHREAD_CFLAGS="$CFLAGS"
798 PTHREAD_LDFLAGS="$LDFLAGS"
799 support_for_pthread_setspecific=yes])
803 if test $support_for__thread = no; then
804 support_for_pthread_setspecific=no
806 AC_MSG_CHECKING(for pthread_setspecific)
808 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LIBS="-lpthread"])
809 PIXMAN_CHECK_PTHREAD([CFLAGS="-pthread"; LDFLAGS="-pthread"])
810 PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LDFLAGS="-lroot"])
812 if test $support_for_pthread_setspecific = yes; then
813 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
814 AC_DEFINE([HAVE_PTHREAD_SETSPECIFIC], [], [Whether pthread_setspecific() is supported])
817 AC_MSG_RESULT($support_for_pthread_setspecific);
820 AC_SUBST(TOOLCHAIN_SUPPORTS__THREAD)
821 AC_SUBST(HAVE_PTHREAD_SETSPECIFIC)
822 AC_SUBST(PTHREAD_LDFLAGS)
823 AC_SUBST(PTHREAD_LIBS)
825 dnl =====================================
826 dnl __attribute__((constructor))
828 support_for_attribute_constructor=no
830 AC_MSG_CHECKING(for __attribute__((constructor)))
831 AC_LINK_IFELSE([AC_LANG_SOURCE([[
832 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
833 /* attribute 'constructor' is supported since gcc 2.7, but some compilers
834 * may only pretend to be gcc, so let's try to actually use it
837 static void __attribute__((constructor)) constructor_function () { x = 0; }
838 int main (void) { return x; }
840 #error not gcc or gcc version is older than 2.7
842 ]])], support_for_attribute_constructor=yes)
844 if test x$support_for_attribute_constructor = xyes; then
845 AC_DEFINE([TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR],
846 [],[Whether the tool chain supports __attribute__((constructor))])
849 AC_MSG_RESULT($support_for_attribute_constructor)
850 AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR)
852 dnl ==================
855 PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no)
857 if test x$have_libpng = xyes; then
858 AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng])
861 AC_SUBST(HAVE_LIBPNG)
863 AC_OUTPUT([pixman-1.pc
864 pixman-1-uninstalled.pc
867 pixman/pixman-version.h
871 m4_if(m4_eval(pixman_minor % 2), [1], [
873 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
875 echo " Thanks for testing this development snapshot of pixman. Please"
876 echo " report any problems you find, either by sending email to "
878 echo " pixman@lists.freedesktop.org"
880 echo " or by filing a bug at "
882 echo " https://bugs.freedesktop.org/enter_bug.cgi?product=pixman "
884 echo " If you are looking for a stable release of pixman, please note "
885 echo " that stable releases have _even_ minor version numbers. Ie., "
886 echo " pixman-0.]m4_eval(pixman_minor & ~1)[.x are stable releases, whereas pixman-$PIXMAN_VERSION_MAJOR.$PIXMAN_VERSION_MINOR.$PIXMAN_VERSION_MICRO is a "
887 echo " development snapshot that may contain bugs and experimental "
890 echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"