diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 9b44842666..e7cb7455a0 100644 --- a/configure.in +++ b/configure.in @@ -912,11 +912,13 @@ if test "$GCC" = yes; then fi AC_CACHE_CHECK(for __builtin_unreachable, rb_cv_func___builtin_unreachable, + [RUBY_WERROR_FLAG( [AC_TRY_LINK([@%:@include <stdlib.h>], [exit(0); __builtin_unreachable();], [rb_cv_func___builtin_unreachable=yes], [rb_cv_func___builtin_unreachable=no]) ]) + ]) if test "$rb_cv_func___builtin_unreachable" = yes; then AC_DEFINE_UNQUOTED(UNREACHABLE, [__builtin_unreachable()]) fi |