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Diffstat (limited to 'lib/builtins/atomic_flag_clear_explicit.c')
-rw-r--r--lib/builtins/atomic_flag_clear_explicit.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/builtins/atomic_flag_clear_explicit.c b/lib/builtins/atomic_flag_clear_explicit.c
index 0f7859c2cd820..1059b787f1691 100644
--- a/lib/builtins/atomic_flag_clear_explicit.c
+++ b/lib/builtins/atomic_flag_clear_explicit.c
@@ -12,9 +12,17 @@
*===------------------------------------------------------------------------===
*/
+#ifndef __has_include
+#define __has_include(inc) 0
+#endif
+
+#if __has_include(<stdatomic.h>)
+
#include <stdatomic.h>
#undef atomic_flag_clear_explicit
void atomic_flag_clear_explicit(volatile atomic_flag *object,
memory_order order) {
- return __c11_atomic_store(&(object)->_Value, 0, order);
+ __c11_atomic_store(&(object)->_Value, 0, order);
}
+
+#endif