diff --git a/include/stdc-predef.h b/include/stdc-predef.h
new file mode 100644
index 00000000..f8cd4b89
--- /dev/null
+++ b/include/stdc-predef.h
@@ -0,0 +1,10 @@
+#ifndef _STDC_PREDEF_H
+#define _STDC_PREDEF_H
+
+#define __STDC_ISO_10646__ 201206L
+
+#if !defined(__GCC_IEC_559) || __GCC_IEC_559 > 0
+#define __STDC_IEC_559__ 1
+#endif
+
+#endif