diff options
| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-04-09 17:51:31 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-04-10 16:05:01 +0900 |
| commit | 4a6c7f8696f3a5df36fb752990f037b8ba9b5937 (patch) | |
| tree | 4b83ee56633a59d32fee1c11222e98c34f8e7caa /configure.ac | |
| parent | 8b7cab70ebf10b252c62bbc7931d0927fb9c25ad (diff) | |
configure: always check for atomic/sync builtins [Bug #17787]
Non-gcc compilers tend to have this intrinsic these days, e.g. xlc
has `__sync` builtins.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/4372
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 6b5dc369e5..6fe43bfc8d 100644 --- a/configure.ac +++ b/configure.ac @@ -1549,7 +1549,9 @@ AS_IF([test "$GCC" = yes], [ AC_DEFINE_UNQUOTED([RUBY_ALIAS_FUNCTION_VOID(prot, name, args)], [RUBY_ALIAS_FUNCTION_TYPE(void, prot, name, args)]) ]) +]) +{ AC_CACHE_CHECK([for __atomic builtins], [rb_cv_gcc_atomic_builtins], [ AC_LINK_IFELSE([AC_LANG_PROGRAM([[unsigned int atomic_var;]], [[ @@ -1580,7 +1582,6 @@ AS_IF([test "$GCC" = yes], [ AS_IF([test "$rb_cv_gcc_sync_builtins" = yes], [ AC_DEFINE(HAVE_GCC_SYNC_BUILTINS) ]) -]) AC_CACHE_CHECK(for __builtin_unreachable, rb_cv_func___builtin_unreachable, [RUBY_WERROR_FLAG( @@ -1593,6 +1594,7 @@ AS_IF([test "$GCC" = yes], [ AS_IF([test "$rb_cv_func___builtin_unreachable" = yes], [ AC_DEFINE_UNQUOTED(UNREACHABLE, [__builtin_unreachable()]) ]) +} AC_CACHE_CHECK(for exported function attribute, rb_cv_func_exported, [ rb_cv_func_exported=no |