AC_C_BIGENDIAN
AC_C_INLINE
-# Check for OpenMP support (only supported by autoconf >=2.62)
-OPENMP_CFLAGS=
-m4_ifdef([AC_OPENMP], [AC_OPENMP], [AC_SUBST(OPENMP_CFLAGS)])
+dnl PIXMAN_LINK_WITH_ENV(
+dnl CFLAGS=... LDFLAGS=... LIBS=...,
+dnl program, true-action, false-action)
+AC_DEFUN([PIXMAN_LINK_WITH_ENV],[dnl
+ save_CFLAGS="$CFLAGS"
+ save_LDFLAGS="$LDFLAGS"
+ save_LIBS="$LIBS"
+ CFLAGS=""
+ LDFLAGS=""
+ LIBS=""
+ $1
+ AC_LINK_IFELSE([$2], [$3], [$4])
+ CFLAGS="$save_CFLAGS"
+ LDFLAGS="$save_LDFLAGS"
+ LIBS="$save_LIBS"
+])
AC_CHECK_SIZEOF(long)
AC_SUBST(PERL)
dnl =========================================================================
+dnl OpenMP for the test suite?
+dnl
+
+# Check for OpenMP support (only supported by autoconf >=2.62)
+OPENMP_CFLAGS=
+m4_ifdef([AC_OPENMP], [AC_OPENMP])
+
+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$have_openmp" = "xyes"; then
+ AC_DEFINE(USE_OPENMP, 1, [use OpenMP in the test suite])
+else
+ OPENMP_CFLAGS=""
+fi
+AC_SUBST(OPENMP_CFLAGS)
+
+dnl =========================================================================
dnl -fvisibility stuff
have_gcc4=no
AC_DEFUN([PIXMAN_CHECK_PTHREAD],[dnl
if test "z$support_for_pthread_setspecific" != "zyes"; then
- save_CFLAGS="$CFLAGS"
- save_LDFLAGS="$LDFLAGS"
- save_LIBS="$LIBS"
- CFLAGS=""
- LDFLAGS=""
- LIBS=""
- $1
- AC_LINK_IFELSE([pthread_test_program],
+ PIXMAN_LINK_WITH_ENV(
+ [$1], [pthread_test_program],
[PTHREAD_CFLAGS="$CFLAGS"
PTHREAD_LIBS="$LIBS"
PTHREAD_LDFLAGS="$LDFLAGS"
support_for_pthread_setspecific=yes])
- CFLAGS="$save_CFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
fi
])