diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 7a820dabd6..bddb5a4f40 100644 --- a/configure.ac +++ b/configure.ac @@ -340,16 +340,21 @@ AS_CASE(["$host_os:$build_os"], AS_CASE(["$target_os"], [darwin*], [ AC_MSG_CHECKING(if minimum required OS X version is supported) - AC_COMPILE_IFELSE([AC_LANG_SOURCE([[@%:@include <AvailabilityMacros.h> + AC_PREPROC_IFELSE([AC_LANG_SOURCE([[@%:@include <AvailabilityMacros.h> @%:@if MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_5 @%:@error pre OS X 10.5 [!<===== pre OS X 10.5 =====>] @%:@endif - int __thread conftest; ]])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_MSG_ERROR([Unsupported OS X version is required])]) + AC_CACHE_CHECK([if thread-local storage is supported], [rb_cv_tls_supported], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[int __thread conftest;]])], + [rb_cv_tls_supported=yes], + [rb_cv_tls_supported=no])]) + AS_IF([test x"$rb_cv_tls_supported" != xyes], + [AC_DEFINE(RB_THREAD_LOCAL_SPECIFIER_IS_UNSUPPORTED)]) ]) RUBY_MINGW32 |