diff options
Diffstat (limited to 'pixman/configure.ac')
| -rw-r--r-- | pixman/configure.ac | 1666 |
1 files changed, 833 insertions, 833 deletions
diff --git a/pixman/configure.ac b/pixman/configure.ac index 8ce9e1923..7f2f28217 100644 --- a/pixman/configure.ac +++ b/pixman/configure.ac @@ -1,833 +1,833 @@ -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], 1) - -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) - -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 -]) +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], 1)
+
+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)
+
+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
+])
|