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], 34) m4_define([pixman_micro], 0) 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]) AM_MAINTAINER_MODE # Suppress verbose compile lines m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_CONFIG_HEADERS(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="" $1 CFLAGS="$save_CFLAGS $CFLAGS" LDFLAGS="$save_LDFLAGS $LDFLAGS" LIBS="$save_LIBS $LIBS" 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 $SUNCC = yes && \ test "x$test_CFLAGS" = "x" && \ 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([-Wdeclaration-after-statement]) PIXMAN_CHECK_CFLAG([-Wno-unused-local-typedefs]) PIXMAN_CHECK_CFLAG([-fno-strict-aliasing]) 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 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$have_openmp" = "xyes" ; then AC_DEFINE(USE_OPENMP, 1, [use OpenMP in the test suite]) fi fi AC_SUBST(OPENMP_CFLAGS) dnl ========================================================================= dnl -fvisibility stuff PIXMAN_CHECK_CFLAG([-fvisibility=hidden], [dnl #if defined(__GNUC__) && (__GNUC__ >= 4) #ifdef _WIN32 #error Have -fvisibility but it is ignored and generates a warning #endif #else #error Need GCC 4.0 for visibility #endif ]) PIXMAN_CHECK_CFLAG([-xldscope=hidden], [dnl #if defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) #else #error Need Sun Studio 8 for visibility #endif ]) dnl =========================================================================== dnl Check for Loongson Multimedia Instructions if test "x$LS_CFLAGS" = "x" ; then LS_CFLAGS="-march=loongson2f" fi have_loongson_mmi=no AC_MSG_CHECKING(whether to use Loongson MMI assembler) xserver_save_CFLAGS=$CFLAGS CFLAGS=" $LS_CFLAGS $CFLAGS -I$srcdir" AC_LINK_IFELSE([AC_LANG_SOURCE([[ #ifndef __mips_loongson_vector_rev #error "Loongson Multimedia Instructions are only available on Loongson" #endif #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4)) #error "Need GCC >= 4.4 for Loongson MMI compilation" #endif #include "pixman/loongson-mmintrin.h" int main () { union { __m64 v; char c[8]; } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} }; int b = 4; __m64 c = _mm_srli_pi16 (a.v, b); return 0; }]])], have_loongson_mmi=yes) CFLAGS=$xserver_save_CFLAGS AC_ARG_ENABLE(loongson-mmi, [AC_HELP_STRING([--disable-loongson-mmi], [disable Loongson MMI fast paths])], [enable_loongson_mmi=$enableval], [enable_loongson_mmi=auto]) if test $enable_loongson_mmi = no ; then have_loongson_mmi=disabled fi if test $have_loongson_mmi = yes ; then AC_DEFINE(USE_LOONGSON_MMI, 1, [use Loongson Multimedia Instructions]) else LS_CFLAGS= fi AC_MSG_RESULT($have_loongson_mmi) if test $enable_loongson_mmi = yes && test $have_loongson_mmi = no ; then AC_MSG_ERROR([Loongson MMI not detected]) fi AM_CONDITIONAL(USE_LOONGSON_MMI, test $have_loongson_mmi = yes) dnl =========================================================================== dnl Check for MMX if test "x$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 $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)) #error "Need GCC >= 3.4 for MMX intrinsics" #endif #include #include /* Check support for block expressions */ #define _mm_shuffle_pi16(A, N) \ ({ \ __m64 ret; \ \ /* Some versions of clang will choke on K */ \ asm ("pshufw %2, %1, %0\n\t" \ : "=y" (ret) \ : "y" (A), "K" ((const int8_t)N) \ ); \ \ ret; \ }) int main () { __m64 v = _mm_cvtsi32_si64 (1); __m64 w; w = _mm_shuffle_pi16(v, 5); /* Some versions of clang will choke on this */ asm ("pmulhuw %1, %0\n\t" : "+y" (w) : "y" (v) ); return _mm_cvtsi64_si32 (v); }]])], have_mmx_intrinsics=yes) CFLAGS=$xserver_save_CFLAGS AC_ARG_ENABLE(mmx, [AC_HELP_STRING([--disable-mmx], [disable x86 MMX fast paths])], [enable_mmx=$enableval], [enable_mmx=auto]) if test $enable_mmx = no ; then have_mmx_intrinsics=disabled fi if test $have_mmx_intrinsics = yes ; then AC_DEFINE(USE_X86_MMX, 1, [use x86 MMX compiler intrinsics]) else MMX_CFLAGS= fi AC_MSG_RESULT($have_mmx_intrinsics) if test $enable_mmx = yes && test $have_mmx_intrinsics = no ; then AC_MSG_ERROR([x86 MMX intrinsics not detected]) fi AM_CONDITIONAL(USE_X86_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 $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)) # if !defined(__amd64__) && !defined(__x86_64__) # error "Need GCC >= 4.2 for SSE2 intrinsics on x86" # endif #endif #include #include #include int param; int main () { __m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c; c = _mm_xor_si128 (a, b); return _mm_cvtsi128_si32(c); }]])], have_sse2_intrinsics=yes) CFLAGS=$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 $have_sse2_intrinsics = yes) dnl =========================================================================== dnl Check for SSSE3 if test "x$SSSE3_CFLAGS" = "x" ; then SSSE3_CFLAGS="-mssse3 -Winline" fi have_ssse3_intrinsics=no AC_MSG_CHECKING(whether to use SSSE3 intrinsics) xserver_save_CFLAGS=$CFLAGS CFLAGS="$SSSE3_CFLAGS $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include #include #include #include int param; int main () { __m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c; c = _mm_maddubs_epi16 (a, b); return _mm_cvtsi128_si32(c); }]])], have_ssse3_intrinsics=yes) CFLAGS=$xserver_save_CFLAGS AC_ARG_ENABLE(ssse3, [AC_HELP_STRING([--disable-ssse3], [disable SSSE3 fast paths])], [enable_ssse3=$enableval], [enable_ssse3=auto]) if test $enable_ssse3 = no ; then have_ssse3_intrinsics=disabled fi if test $have_ssse3_intrinsics = yes ; then AC_DEFINE(USE_SSSE3, 1, [use SSSE3 compiler intrinsics]) fi AC_MSG_RESULT($have_ssse3_intrinsics) if test $enable_ssse3 = yes && test $have_ssse3_intrinsics = no ; then AC_MSG_ERROR([SSSE3 intrinsics not detected]) fi AM_CONDITIONAL(USE_SSSE3, test $have_ssse3_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="$HWCAP_LDFLAGS" fi ;; esac AC_SUBST(LS_CFLAGS) AC_SUBST(IWMMXT_CFLAGS) AC_SUBST(MMX_CFLAGS) AC_SUBST(MMX_LDFLAGS) AC_SUBST(SSE2_CFLAGS) AC_SUBST(SSE2_LDFLAGS) AC_SUBST(SSSE3_CFLAGS) dnl =========================================================================== dnl Check for VMX/Altivec if test -n "`$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 $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)) #error "Need GCC >= 3.4 for sane altivec support" #endif #include int main () { vector unsigned int v = vec_splat_u32 (1); v = vec_sub (v, v); return 0; }]])], have_vmx_intrinsics=yes) CFLAGS=$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 $have_arm_neon = no ; then AC_MSG_ERROR([ARM NEON intrinsics not detected]) fi dnl =========================================================================== dnl Check for IWMMXT AC_ARG_ENABLE(arm-iwmmxt, [AC_HELP_STRING([--disable-arm-iwmmxt], [disable ARM IWMMXT fast paths])], [enable_iwmmxt=$enableval], [enable_iwmmxt=auto]) AC_ARG_ENABLE(arm-iwmmxt2, [AC_HELP_STRING([--disable-arm-iwmmxt2], [build ARM IWMMXT fast paths with -march=iwmmxt instead of -march=iwmmxt2])], [enable_iwmmxt2=$enableval], [enable_iwmmxt2=auto]) if test "x$IWMMXT_CFLAGS" = "x" ; then IWMMXT_CFLAGS="-flax-vector-conversions -Winline -march=iwmmxt" if test $enable_iwmmxt2 != no ; then IWMMXT_CFLAGS="${IWMMXT_CFLAGS}2" fi fi have_iwmmxt_intrinsics=no AC_MSG_CHECKING(whether to use ARM IWMMXT intrinsics) xserver_save_CFLAGS=$CFLAGS CFLAGS="$CFLAGS $IWMMXT_CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #ifndef __arm__ #error "IWMMXT is only available on ARM" #endif #ifndef __IWMMXT__ #error "IWMMXT not enabled (with -march=iwmmxt)" #endif #if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)) #error "Need GCC >= 4.8 for IWMMXT intrinsics" #endif #include int main () { union { __m64 v; char c[8]; } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} }; int b = 4; __m64 c = _mm_srli_si64 (a.v, b); }]])], have_iwmmxt_intrinsics=yes) CFLAGS=$xserver_save_CFLAGS if test $enable_iwmmxt = no ; then have_iwmmxt_intrinsics=disabled fi if test $have_iwmmxt_intrinsics = yes ; then AC_DEFINE(USE_ARM_IWMMXT, 1, [use ARM IWMMXT compiler intrinsics]) else IWMMXT_CFLAGS= fi AC_MSG_RESULT($have_iwmmxt_intrinsics) if test $enable_iwmmxt = yes && test $have_iwmmxt_intrinsics = no ; then AC_MSG_ERROR([IWMMXT intrinsics not detected]) fi AM_CONDITIONAL(USE_ARM_IWMMXT, test $have_iwmmxt_intrinsics = yes) dnl ========================================================================== dnl Check if assembler is gas compatible and supports MIPS DSPr2 instructions have_mips_dspr2=no AC_MSG_CHECKING(whether to use MIPS DSPr2 assembler) xserver_save_CFLAGS=$CFLAGS CFLAGS="-mdspr2 $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #if !(defined(__mips__) && __mips_isa_rev >= 2) #error MIPS DSPr2 is currently only available on MIPS32r2 platforms. #endif int main () { int c = 0, a = 0, b = 0; __asm__ __volatile__ ( "precr.qb.ph %[c], %[a], %[b] \n\t" : [c] "=r" (c) : [a] "r" (a), [b] "r" (b) ); return c; }]])], have_mips_dspr2=yes) CFLAGS=$xserver_save_CFLAGS AC_ARG_ENABLE(mips-dspr2, [AC_HELP_STRING([--disable-mips-dspr2], [disable MIPS DSPr2 fast paths])], [enable_mips_dspr2=$enableval], [enable_mips_dspr2=auto]) if test $enable_mips_dspr2 = no ; then have_mips_dspr2=disabled fi if test $have_mips_dspr2 = yes ; then AC_DEFINE(USE_MIPS_DSPR2, 1, [use MIPS DSPr2 assembly optimizations]) fi AM_CONDITIONAL(USE_MIPS_DSPR2, test $have_mips_dspr2 = yes) AC_MSG_RESULT($have_mips_dspr2) if test $enable_mips_dspr2 = yes && test $have_mips_dspr2 = no ; then AC_MSG_ERROR([MIPS DSPr2 instructions not detected]) fi dnl ========================================================================================= dnl Check for GNU-style inline assembly support have_gcc_inline_asm=no AC_MSG_CHECKING(whether to use GNU-style inline assembler) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ int main () { /* Most modern architectures have a NOP instruction, so this is a fairly generic test. */ asm volatile ( "\tnop\n" : : : "cc", "memory" ); return 0; }]])], have_gcc_inline_asm=yes) AC_ARG_ENABLE(gcc-inline-asm, [AC_HELP_STRING([--disable-gcc-inline-asm], [disable GNU-style inline assembler])], [enable_gcc_inline_asm=$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 >= 2.16 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 $enable_gtk = auto ; then PKG_CHECK_MODULES(GTK, [gtk+-2.0 >= 2.16 pixman-1], [enable_gtk=yes], [enable_gtk=no]) fi AM_CONDITIONAL(HAVE_GTK, [test "x$enable_gtk" = xyes]) AC_SUBST(GTK_CFLAGS) AC_SUBST(GTK_LIBS) 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$have_alarm = xyes; then AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()]) fi AC_CHECK_HEADER([sys/mman.h], [AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have ])]) AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no) if test x$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 ])]) AC_CHECK_LIB(m, feenableexcept, have_feenableexcept=yes, have_feenableexcept=no) if test x$have_feenableexcept = xyes; then AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()]) fi AC_CHECK_DECL([FE_DIVBYZERO], [AC_DEFINE(HAVE_FEDIVBYZERO, 1, [Whether we have FE_DIVBYZERO])], [], [[#include ]]) AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no) AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no) if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then AC_DEFINE(HAVE_GETTIMEOFDAY, 1, [Whether we have gettimeofday()]) fi dnl ===================================== dnl Check for missing sqrtf() as, e.g., for Solaris 9 AC_SEARCH_LIBS([sqrtf], [m], [], [AC_DEFINE([sqrtf], [sqrt], [Define to sqrt if you do not have the `sqrtf' function.])]) dnl ===================================== dnl Thread local storage AC_MSG_CHECKING(for thread local storage (TLS) support) AC_CACHE_VAL(ac_cv_tls, [ ac_cv_tls=none keywords="__thread __declspec(thread)" for kw in $keywords ; do AC_TRY_COMPILE([ #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 int $kw test;], [], [ac_cv_tls=$kw; break]) done ]) AC_MSG_RESULT($ac_cv_tls) if test "$ac_cv_tls" != "none"; then AC_DEFINE_UNQUOTED([TLS], $ac_cv_tls, [The compiler supported TLS storage class]) fi dnl dnl posix tls dnl m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl #include #include static pthread_once_t once_control = PTHREAD_ONCE_INIT; static pthread_key_t key; static void make_key (void) { pthread_key_create (&key, NULL); } int main () { void *value = NULL; if (pthread_once (&once_control, make_key) != 0) { value = NULL; } else { value = pthread_getspecific (key); if (!value) { value = malloc (100); pthread_setspecific (key, value); } } return 0; } ]])) AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl if test "z$support_for_pthreads" != "zyes"; then PIXMAN_LINK_WITH_ENV( [$1], [pthread_test_program], [PTHREAD_CFLAGS="$CFLAGS" PTHREAD_LIBS="$LIBS" PTHREAD_LDFLAGS="$LDFLAGS" support_for_pthreads=yes]) fi ]) support_for_pthreads=no AC_MSG_CHECKING(for pthreads) PIXMAN_CHECK_PTHREAD([CFLAGS=""; LIBS="-L/usr/X11R6/lib -lpthread-stubs"]) PIXMAN_CHECK_PTHREAD([CFLAGS="-pthread"; LDFLAGS="-pthread"]) PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LIBS="-lpthread"]) PIXMAN_CHECK_PTHREAD([CFLAGS="-D_REENTRANT"; LDFLAGS="-lroot"]) if test $support_for_pthreads = yes; then AC_DEFINE([HAVE_PTHREADS], [], [Whether pthreads is supported]) if test $ac_cv_tls = none ; then CFLAGS="$CFLAGS $PTHREAD_CFLAGS" fi fi AC_MSG_RESULT($support_for_pthreads) AC_SUBST(TOOLCHAIN_SUPPORTS__THREAD) AC_SUBST(HAVE_PTHREADS) AC_SUBST(PTHREAD_LDFLAGS) AC_SUBST(PTHREAD_LIBS) AC_SUBST(PTHREAD_CFLAGS) dnl ===================================== dnl __attribute__((constructor)) support_for_attribute_constructor=no AC_MSG_CHECKING(for __attribute__((constructor))) AC_LINK_IFELSE([AC_LANG_SOURCE([[ #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)) /* attribute 'constructor' is supported since gcc 2.7, but some compilers * may only pretend to be gcc, so let's try to actually use it */ static int x = 1; static void __attribute__((constructor)) constructor_function () { x = 0; } int main (void) { return x; } #else #error not gcc or gcc version is older than 2.7 #endif ]])], support_for_attribute_constructor=yes) if test x$support_for_attribute_constructor = xyes; then AC_DEFINE([TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR], [],[Whether the tool chain supports __attribute__((constructor))]) fi AC_MSG_RESULT($support_for_attribute_constructor) AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR) dnl ===================================== dnl __float128 support_for_float128=no AC_MSG_CHECKING(for __float128) AC_LINK_IFELSE([AC_LANG_SOURCE([[ __float128 a = 1.0Q, b = 2.0Q; int main (void) { return a + b; } ]])], support_for_float128=yes) if test x$support_for_float128 = xyes; then AC_DEFINE([HAVE_FLOAT128], [], [Whether the tool chain supports __float128]) fi AC_MSG_RESULT($support_for_float128) dnl ===================================== dnl __builtin_clz support_for_builtin_clz=no AC_MSG_CHECKING(for __builtin_clz) AC_LINK_IFELSE([AC_LANG_SOURCE([[ unsigned int x = 11; int main (void) { return __builtin_clz(x); } ]])], support_for_builtin_clz=yes) if test x$support_for_builtin_clz = xyes; then AC_DEFINE([HAVE_BUILTIN_CLZ], [], [Whether the compiler supports __builtin_clz]) fi AC_MSG_RESULT($support_for_builtin_clz) dnl ===================================== dnl GCC vector extensions support_for_gcc_vector_extensions=no AC_MSG_CHECKING(for GCC vector extensions) AC_LINK_IFELSE([AC_LANG_SOURCE([[ unsigned int __attribute__ ((vector_size(16))) e, a, b; int main (void) { e = a - ((b << 27) + (b >> (32 - 27))) + 1; return e[0]; } ]])], support_for_gcc_vector_extensions=yes) if test x$support_for_gcc_vector_extensions = xyes; then AC_DEFINE([HAVE_GCC_VECTOR_EXTENSIONS], [], [Whether the compiler supports GCC vector extensions]) fi AC_MSG_RESULT($support_for_gcc_vector_extensions) dnl ================== dnl libpng AC_ARG_ENABLE(libpng, AS_HELP_STRING([--enable-libpng], [Build support for libpng (default: auto)]), [have_libpng=$enableval], [have_libpng=auto]) case x$have_libpng in xyes) PKG_CHECK_MODULES(PNG, [libpng]) ;; xno) ;; *) PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no) ;; esac if test x$have_libpng = xyes; then AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng]) fi AC_SUBST(HAVE_LIBPNG) AC_OUTPUT([pixman-1.pc pixman-1-uninstalled.pc Makefile pixman/Makefile pixman/pixman-version.h demos/Makefile test/Makefile]) m4_if(m4_eval(pixman_minor % 2), [1], [ echo echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@" echo echo " Thanks for testing this development snapshot of pixman. Please" echo " report any problems you find, either by sending email to " echo echo " pixman@lists.freedesktop.org" echo echo " or by filing a bug at " echo echo " https://bugs.freedesktop.org/enter_bug.cgi?product=pixman " echo echo " If you are looking for a stable release of pixman, please note " echo " that stable releases have _even_ minor version numbers. Ie., " echo " pixman-0.]m4_eval(pixman_minor & ~1)[.x are stable releases, whereas pixman-$PIXMAN_VERSION_MAJOR.$PIXMAN_VERSION_MINOR.$PIXMAN_VERSION_MICRO is a " echo " development snapshot that may contain bugs and experimental " echo " features. " echo echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@" echo ])