diff options
Diffstat (limited to 'unix/configure.ac')
| -rw-r--r-- | unix/configure.ac | 57 |
1 files changed, 20 insertions, 37 deletions
diff --git a/unix/configure.ac b/unix/configure.ac index 658eb6a..240e8ac 100644 --- a/unix/configure.ac +++ b/unix/configure.ac @@ -539,44 +539,27 @@ if test "`uname -s`" = "Darwin" ; then [Can this platform load code from memory?]) AC_DEFINE(TCL_WIDE_CLICKS, 1, [Does this platform have wide high-resolution clicks?]) - AC_CHECK_HEADERS(AvailabilityMacros.h) - if test "$ac_cv_header_AvailabilityMacros_h" = yes; then AC_CACHE_CHECK([if weak import is available], tcl_cv_cc_weak_import, [ - hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror" - AC_LINK_IFELSE([AC_LANG_PROGRAM([[ - #ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1020 - #error __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1020 - #endif - #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1020 - #error MAC_OS_X_VERSION_MIN_REQUIRED < 1020 - #endif - int rand(void) __attribute__((weak_import)); - ]], [[rand();]])], - [tcl_cv_cc_weak_import=yes],[tcl_cv_cc_weak_import=no]) - CFLAGS=$hold_cflags]) - if test $tcl_cv_cc_weak_import = yes; then - AC_DEFINE(HAVE_WEAK_IMPORT, 1, [Is weak import available?]) - fi - AC_CACHE_CHECK([if Darwin SUSv3 extensions are available], - tcl_cv_cc_darwin_c_source, [ - hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror" - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - #ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ - #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1050 - #error __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1050 - #endif - #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1050 - #error MAC_OS_X_VERSION_MIN_REQUIRED < 1050 - #endif - #define _DARWIN_C_SOURCE 1 - #include <sys/cdefs.h> - ]], [[]])],[tcl_cv_cc_darwin_c_source=yes],[tcl_cv_cc_darwin_c_source=no]) - CFLAGS=$hold_cflags]) - if test $tcl_cv_cc_darwin_c_source = yes; then - AC_DEFINE(_DARWIN_C_SOURCE, 1, - [Are Darwin SUSv3 extensions available?]) - fi + hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + int rand(void) __attribute__((weak_import)); + ]], [[rand();]])], + [tcl_cv_cc_weak_import=yes],[tcl_cv_cc_weak_import=no]) + CFLAGS=$hold_cflags]) + if test $tcl_cv_cc_weak_import = yes; then + AC_DEFINE(HAVE_WEAK_IMPORT, 1, [Is weak import available?]) + fi + AC_CACHE_CHECK([if Darwin SUSv3 extensions are available], + tcl_cv_cc_darwin_c_source, [ + hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #define _DARWIN_C_SOURCE 1 + #include <sys/cdefs.h> + ]], [[]])],[tcl_cv_cc_darwin_c_source=yes],[tcl_cv_cc_darwin_c_source=no]) + CFLAGS=$hold_cflags]) + if test $tcl_cv_cc_darwin_c_source = yes; then + AC_DEFINE(_DARWIN_C_SOURCE, 1, + [Are Darwin SUSv3 extensions available?]) fi # Build .bundle dltest binaries in addition to .dylib DLTEST_LD='${CC} -bundle -Wl,-w ${CFLAGS} ${LDFLAGS}' |