1 files changed, 6 insertions, 2 deletions
diff --git a/stdbool.h b/stdbool.h
index 46d637e..c6edc08 100644
--- a/stdbool.h
+++ b/stdbool.h
@@ -1,5 +1,9 @@
-#ifndef __STDBOOL_H__
-#define __STDBOOL_H__
+#ifndef __STDC_VERSION_STDBOOL_H__
+#if defined __STDC_VERSION__
+#define __STDC_VERSION_STDBOOL_H__ __STDC_VERSION__
+#else
+#define __STDC_VERSION_STDBOOL_H__ 1
+#endif
 
 /*
 UNG's Not GNU