diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
new file mode 100644
index 000000000000..ffe4c2b3b102
--- /dev/null
+++ b/include/sys/cdefs.h
@@ -0,0 +1,25 @@
+#ifndef _ZOL_SYS_CDEFS_H_
+#define _ZOL_SYS_CDEFS_H_
+
+#if !defined(__FreeBSD__)
+#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
+#define __printflike(fmtarg, firstvararg)
+#define __scanflike(fmtarg, firstvararg)
+#define __format_arg(fmtarg)
+#define __strfmonlike(fmtarg, firstvararg)
+#define __strftimelike(fmtarg, firstvararg)
+#else
+#define __printflike(fmtarg, firstvararg) \
+            __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#define __scanflike(fmtarg, firstvararg) \
+            __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
+#define __format_arg(fmtarg)    __attribute__((__format_arg__ (fmtarg)))
+#define __strfmonlike(fmtarg, firstvararg) \
+            __attribute__((__format__ (__strfmon__, fmtarg, firstvararg)))
+#define __strftimelike(fmtarg, firstvararg) \
+            __attribute__((__format__ (__strftime__, fmtarg, firstvararg)))
+#endif
+#endif
+#include_next<sys/cdefs.h>
+
+#endif