diff options
Diffstat (limited to 'libs/cairo-1.16.0/build/aclocal.cairo.m4')
| -rw-r--r-- | libs/cairo-1.16.0/build/aclocal.cairo.m4 | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/build/aclocal.cairo.m4 b/libs/cairo-1.16.0/build/aclocal.cairo.m4 new file mode 100644 index 0000000..64c1a2e --- /dev/null +++ b/libs/cairo-1.16.0/build/aclocal.cairo.m4 @@ -0,0 +1,228 @@ +dnl ========================================================================== +dnl +dnl Cairo-specific macros +dnl + +dnl ========================================================================== + +dnl Usage: +dnl CAIRO_BIGENDIAN +dnl +AC_DEFUN([CAIRO_BIGENDIAN], +[dnl + case $host_os in + darwin*) + AH_VERBATIM([X_BYTE_ORDER], +[ +/* Deal with multiple architecture compiles on Mac OS X */ +#ifdef __APPLE_CC__ +#ifdef __BIG_ENDIAN__ +#define WORDS_BIGENDIAN 1 +#define FLOAT_WORDS_BIGENDIAN 1 +#else +#undef WORDS_BIGENDIAN +#undef FLOAT_WORDS_BIGENDIAN +#endif +#endif +]) + ;; + *) + AC_C_BIGENDIAN + AX_C_FLOAT_WORDS_BIGENDIAN + ;; + esac +]) + +dnl CAIRO_CHECK_FUNCS_WITH_FLAGS(FUNCTION..., CFLAGS, LIBS +dnl [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) +dnl Like AC_CHECK_FUNCS but with additional CFLAGS and LIBS +dnl -------------------------------------------------------------------- +AC_DEFUN([CAIRO_CHECK_FUNCS_WITH_FLAGS], +[dnl + _save_cflags="$CFLAGS" + _save_libs="$LIBS" + CFLAGS="$CFLAGS $2" + LIBS="$LIBS $3" + AC_CHECK_FUNCS($1, $4, $5) + CFLAGS="$_save_cflags" + LIBS="$_save_libs" +]) + +dnl CAIRO_CONFIG_COMMANDS is like AC_CONFIG_COMMANDS, except that: +dnl +dnl 1) It redirects the stdout of the command to the file. +dnl 2) It does not recreate the file if contents didn't change. +dnl +AC_DEFUN([CAIRO_CONFIG_COMMANDS], +[dnl + AC_CONFIG_COMMANDS($1, + [ + _config_file=$1 + _tmp_file=cairoconf.tmp + AC_MSG_NOTICE([creating $_config_file]) + { + $2 + } >> "$_tmp_file" || + AC_MSG_ERROR([failed to write to $_tmp_file]) + + if cmp -s "$_tmp_file" "$_config_file"; then + AC_MSG_NOTICE([$_config_file is unchanged]) + rm -f "$_tmp_file" + else + mv "$_tmp_file" "$_config_file" || + AC_MSG_ERROR([failed to update $_config_file]) + fi + ], $3) +]) + +dnl CAIRO_CC_TRY_LINK_WITH_ENV_SILENT(env-setup, program, +dnl true-action, false-action) +dnl +dnl Compile and link the program with the given environment setup. +dnl The global cairo_cc_flag is set to "yes" or "no" according as +dnl the link succeeded or not. The link step must complete without +dnl warnings or errors to stderr. +dnl +dnl Perform true-action on success and false-action on failure. +dnl The values of CFLAGS, LIBS, LDFLAGS are saved before env-setup +dnl is executed and restored right before the end of the macro. +AC_DEFUN([CAIRO_CC_TRY_LINK_WITH_ENV_SILENT],[dnl + # AC_LANG_PROGRAM() produces a main() w/o args, + # but -Wold-style-definition doesn't like that. + # We need _some_ program so that we don't get + # warnings about empty compilation units, so always + # append a reasonable main(). + _compile_program="$2"' + int main(int c, char **v) { (void)c; (void)v; return 0; }' + + _save_cflags="$CFLAGS" + _save_ldflags="$LDFLAGS" + _save_libs="$LIBS" + $1 + AC_LINK_IFELSE( + [AC_LANG_SOURCE([$_compile_program])], + [cairo_cc_stderr=`test -f conftest.err && cat conftest.err` + cairo_cc_flag=yes], + [cairo_cc_stderr=`test -f conftest.err && cat conftest.err` + cairo_cc_flag=no]) + + if test "x$cairo_cc_stderr" != "x"; then + cairo_cc_flag=no + fi + + if test "x$cairo_cc_flag" = "xyes"; then + ifelse([$3], , :, [$3]) + else + ifelse([$4], , :, [$4]) + fi + CFLAGS="$_save_cflags" + LDFLAGS="$_save_ldflags" + LIBS="$_save_libs" +]) + +dnl check compiler flags with a program and no muttering. +AC_DEFUN([CAIRO_CC_TRY_FLAG_SILENT], +[dnl (flags..., optional program, true-action, false-action) + CAIRO_CC_TRY_LINK_WITH_ENV_SILENT([CFLAGS="$CFLAGS $1"], + [$2], [$3], [$4]) +]) + +dnl find a -Werror equivalent +AC_DEFUN([CAIRO_CC_CHECK_WERROR], +[dnl + _test_WERROR=${WERROR+set} + if test "z$_test_WERROR" != zset; then + WERROR="" + for _werror in -Werror -errwarn; do + AC_MSG_CHECKING([whether $CC supports $_werror]) + CAIRO_CC_TRY_FLAG_SILENT( + [$_werror],, + [WERROR="$WERROR $_werror"], + [:]) + AC_MSG_RESULT($cairo_cc_flag) + done + fi +]) + +dnl check compiler flags possibly using -Werror if available. +AC_DEFUN([CAIRO_CC_TRY_FLAG], +[dnl (flags..., optional program, true-action, false-action) + CAIRO_CC_CHECK_WERROR + AC_MSG_CHECKING([whether $CC supports $1]) + CAIRO_CC_TRY_FLAG_SILENT([$WERROR $1], [$2], [$3], [$4]) + AC_MSG_RESULT([$cairo_cc_flag]) +]) + +dnl Usage: +dnl CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES +AC_DEFUN([CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES], +[dnl + AC_CACHE_CHECK([for native atomic primitives], cairo_cv_atomic_primitives, + [ + cairo_cv_atomic_primitives="none" + + AC_TRY_LINK([ +int atomic_add(int i) { return __sync_fetch_and_add (&i, 1); } +int atomic_cmpxchg(int i, int j, int k) { return __sync_val_compare_and_swap (&i, j, k); } +], [], + cairo_cv_atomic_primitives="gcc-legacy" + ) + + AC_TRY_LINK([ +int atomic_add(int i) { return __atomic_fetch_add(&i, 1, __ATOMIC_SEQ_CST); } +int atomic_cmpxchg(int i, int j, int k) { return __atomic_compare_exchange_n(&i, &j, k, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); } +], [], + cairo_cv_atomic_primitives="cxx11" + ) + + if test "x$cairo_cv_atomic_primitives" = "xnone"; then + AC_CHECK_HEADER([atomic_ops.h], + cairo_cv_atomic_primitives="libatomic-ops") + fi + + if test "x$cairo_cv_atomic_primitives" = "xnone"; then + AC_CHECK_HEADER([libkern/OSAtomic.h], + cairo_cv_atomic_primitives="OSAtomic") + fi + ]) + if test "x$cairo_cv_atomic_primitives" = xcxx11; then + AC_DEFINE(HAVE_CXX11_ATOMIC_PRIMITIVES, 1, + [Enable if your compiler supports the GCC __atomic_* atomic primitives]) + fi + + if test "x$cairo_cv_atomic_primitives" = xgcc-legacy; then + AC_DEFINE(HAVE_GCC_LEGACY_ATOMICS, 1, + [Enable if your compiler supports the legacy GCC __sync_* atomic primitives]) + fi + + if test "x$cairo_cv_atomic_primitives" = "xlibatomic-ops"; then + AC_DEFINE(HAVE_LIB_ATOMIC_OPS, 1, + [Enable if you have libatomic-ops-dev installed]) + fi + + if test "x$cairo_cv_atomic_primitives" = xOSAtomic; then + AC_DEFINE(HAVE_OS_ATOMIC_OPS, 1, + [Enable if you have MacOS X atomic operations]) + fi +]) + +dnl Usage: +dnl CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER +AC_DEFUN([CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER], +[dnl + AC_CACHE_CHECK([whether atomic ops require a memory barrier], cairo_cv_atomic_op_needs_memory_barrier, + [ + case $host_cpu in + i?86) cairo_cv_atomic_op_needs_memory_barrier="no" ;; + x86_64) cairo_cv_atomic_op_needs_memory_barrier="no" ;; + arm*) cairo_cv_atomic_op_needs_memory_barrier="yes" ;; + *) cairo_cv_atomic_op_needs_memory_barrier="yes" ;; + esac + ]) + if test "x$cairo_cv_atomic_op_needs_memory_barrier" = "xyes"; then + AC_DEFINE_UNQUOTED(ATOMIC_OP_NEEDS_MEMORY_BARRIER, 1, + [whether memory barriers are needed around atomic operations]) + fi +]) + +AC_DEFUN([CAIRO_TEXT_WRAP], [m4_text_wrap([$1], [$2],, 78)]) |