From: Joey Hess <joey@kitenet.net>
Date: Wed, 21 Apr 2010 23:45:56 +0000 (-0400)
Subject: add missing undef guard in derel
X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/commitdiff_plain/673d6c958050b7ce07d5d8512d5370f9531225cd

add missing undef guard in derel
---

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 4084d4997..8af290745 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -2245,7 +2245,7 @@ sub derel ($$) {
 	if ($path =~ m!^\./!) {
 		$from=~s#/?[^/]+$## if defined $from;
 		$path=~s#^\./##;
-		$path="$from/$path" if length $from;
+		$path="$from/$path" if defined $from && length $from;
 	}
 
 	return $path;