diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 9077f4b953..1ec13bf8c1 100644 --- a/configure.ac +++ b/configure.ac @@ -1457,7 +1457,7 @@ AS_IF([test "$GCC" = yes], [ ]) AC_CACHE_CHECK([for __atomic builtins], [rb_cv_gcc_atomic_builtins], [ - AC_TRY_LINK([unsigned char atomic_var;], + AC_TRY_LINK([unsigned int atomic_var;], [ __atomic_exchange_n(&atomic_var, 0, __ATOMIC_SEQ_CST); __atomic_exchange_n(&atomic_var, 1, __ATOMIC_SEQ_CST); @@ -1472,7 +1472,7 @@ AS_IF([test "$GCC" = yes], [ ]) AC_CACHE_CHECK([for __sync builtins], [rb_cv_gcc_sync_builtins], [ - AC_TRY_LINK([unsigned char atomic_var;], + AC_TRY_LINK([unsigned int atomic_var;], [ __sync_lock_test_and_set(&atomic_var, 0); __sync_lock_test_and_set(&atomic_var, 1); |