diff --git a/include/fnmatch.h b/include/fnmatch.h
index c664422bce68..30322e99d97d 100644
--- a/include/fnmatch.h
+++ b/include/fnmatch.h
@@ -41,14 +41,15 @@
 #define	FNM_NOESCAPE	0x01	/* Disable backslash escaping. */
 #define	FNM_PATHNAME	0x02	/* Slash must be matched by slash. */
 #define	FNM_PERIOD	0x04	/* Period must be matched by period. */
-#define	FNM_ICASE	0x08	/* case insensitive search */
+#ifndef _POSIX_SOURCE
+#define FNM_LEADING_DIR 0x08    /* Ignore "/*" after match */
+#define FNM_CASEFOLD    0x10    /* Case insensitive search */
+#endif
 
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
-#ifndef	_POSIX_SOURCE
 int	 fnmatch __P((const char *, const char *, int));
-#endif
 __END_DECLS
 
 #endif /* !_FNMATCH_H_ */