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configure.ac
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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], 35)
m4_define([pixman_micro], 1)
m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])
AC_INIT(pixman, pixman_version, [[email protected]], pixman)
AM_INIT_AUTOMAKE([foreign dist-bzip2])
# 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 <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$have_openmp" = "xyes" ; then
AC_DEFINE(USE_OPENMP, 1, [use OpenMP in the test suite])
fi
fi
AC_SUBST(OPENMP_CFLAGS)
dnl =========================================================================
dnl -fvisibility stuff
PIXMAN_CHECK_CFLAG([-fvisibility=hidden], [dnl
#if defined(__GNUC__) && (__GNUC__ >= 4)
#ifdef _WIN32
#error Have -fvisibility but it is ignored and generates a warning
#endif
#else
#error Need GCC 4.0 for visibility
#endif
])
PIXMAN_CHECK_CFLAG([-xldscope=hidden], [dnl
#if defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
#else
#error Need Sun Studio 8 for visibility
#endif
])
dnl ===========================================================================
dnl Check for Loongson Multimedia Instructions
if test "x$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 $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
#error "Need GCC >= 3.4 for MMX intrinsics"
#endif
#include <mmintrin.h>
#include <stdint.h>
/* Check support for block expressions */
#define _mm_shuffle_pi16(A, N) \
({ \
__m64 ret; \
\
/* Some versions of clang will choke on K */ \
asm ("pshufw %2, %1, %0\n\t" \
: "=y" (ret) \
: "y" (A), "K" ((const int8_t)N) \
); \
\
ret; \
})
int main () {
__m64 v = _mm_cvtsi32_si64 (1);
__m64 w;
w = _mm_shuffle_pi16(v, 5);
/* Some versions of clang will choke on this */
asm ("pmulhuw %1, %0\n\t"
: "+y" (w)
: "y" (v)
);
return _mm_cvtsi64_si32 (v);
}]])], have_mmx_intrinsics=yes)
CFLAGS=$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 $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2))
# if !defined(__amd64__) && !defined(__x86_64__)
# error "Need GCC >= 4.2 for SSE2 intrinsics on x86"
# endif
#endif
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
int param;
int main () {
__m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c;
c = _mm_xor_si128 (a, b);
return _mm_cvtsi128_si32(c);
}]])], have_sse2_intrinsics=yes)
CFLAGS=$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 $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
#include <tmmintrin.h>
int param;
int main () {
__m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c;
c = _mm_maddubs_epi16 (a, b);
return _mm_cvtsi128_si32(c);
}]])], have_ssse3_intrinsics=yes)
CFLAGS=$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 $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if defined(__GNUC__) && (__GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4))
#error "Need GCC >= 3.4 for sane altivec support"
#endif
#include <altivec.h>
int main () {
vector unsigned int v = vec_splat_u32 (1);
v = vec_sub (v, v);
return 0;
}]])], have_vmx_intrinsics=yes)
CFLAGS=$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 $have_arm_neon = no ; then
AC_MSG_ERROR([ARM NEON intrinsics not detected])
fi
dnl ===========================================================================
dnl Check for IWMMXT
AC_ARG_ENABLE(arm-iwmmxt,
[AC_HELP_STRING([--disable-arm-iwmmxt],
[disable ARM IWMMXT fast paths])],
[enable_iwmmxt=$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 $IWMMXT_CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef __arm__
#error "IWMMXT is only available on ARM"
#endif
#ifndef __IWMMXT__
#error "IWMMXT not enabled (with -march=iwmmxt)"
#endif
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8))
#error "Need GCC >= 4.8 for IWMMXT intrinsics"
#endif
#include <mmintrin.h>
int main () {
union {
__m64 v;
char c[8];
} a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
int b = 4;
__m64 c = _mm_srli_si64 (a.v, b);
}]])], have_iwmmxt_intrinsics=yes)
CFLAGS=$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$have_alarm = xyes; then
AC_DEFINE(HAVE_ALARM, 1, [Whether we have alarm()])
fi
AC_CHECK_HEADER([sys/mman.h],
[AC_DEFINE(HAVE_SYS_MMAN_H, [1], [Define to 1 if we have <sys/mman.h>])])
AC_CHECK_FUNC(mmap, have_mmap=yes, have_mmap=no)
if test x$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$have_feenableexcept = xyes; then
AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
fi
AC_CHECK_DECL([FE_DIVBYZERO],
[AC_DEFINE(HAVE_FEDIVBYZERO, 1, [Whether we have FE_DIVBYZERO])],
[],
[[#include <fenv.h>]])
AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
if test x$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], $ac_cv_tls, [The compiler supported TLS storage class])
fi
dnl
dnl posix tls
dnl
m4_define([pthread_test_program],AC_LANG_SOURCE([[dnl
#include <stdlib.h>
#include <pthread.h>
static pthread_once_t once_control = PTHREAD_ONCE_INIT;
static pthread_key_t key;
static void
make_key (void)
{
pthread_key_create (&key, NULL);
}
int
main ()
{
void *value = NULL;
if (pthread_once (&once_control, make_key) != 0)
{
value = NULL;
}
else
{
value = pthread_getspecific (key);
if (!value)
{
value = malloc (100);
pthread_setspecific (key, value);
}
}
return 0;
}
]]))
AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
if test "z$support_for_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
])