Mention that FNM_LEADING_DIR and FNM_CASEFOLD are extensions.

I got bit by this recently in my own code...

diff --git a/lib/libc/gen/fnmatch.3 b/lib/libc/gen/fnmatch.3
index d4efe72..739996a 100644 (file)
--- a/lib/libc/gen/fnmatch.3
+++ b/lib/libc/gen/fnmatch.3
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: fnmatch.3,v 1.7 1999/06/05 04:47:41 aaron Exp $
+.\"    $OpenBSD: fnmatch.3,v 1.8 2000/03/24 17:16:30 millert Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -134,7 +134,16 @@ otherwise, it returns the value
 The
 .Fn fnmatch
 function conforms to
-.St -p1003.2-92 .
+.St -p1003.2-92
+and
+.St -xpg4.2 .
+.Pp
+Note, however, that the flags
+.Dv FNM_LEADING_DIR
+and
+.Dv FNM_CASEFOLD
+are extensions and should not be used by applications striving for
+strict standards conformance.
 .Sh HISTORY
 The
 .Fn fnmatch