From ed80aec2d67fe21b0ded7b179bad7a93653902ca Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 9 Nov 2010 22:17:40 +0000
Subject: [PATCH] fix bug in path_expand() when passed an empty string

git-svn-id: svn://localhost/ardour2/branches/3.0@7987 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/utils.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libs/ardour/utils.cc b/libs/ardour/utils.cc
index 71dbc42694..6604a93d4a 100644
--- a/libs/ardour/utils.cc
+++ b/libs/ardour/utils.cc
@@ -290,6 +290,10 @@ path_is_paired (string path, string& pair_base)
 string
 path_expand (string path)
 {
+        if (path.empty()) {
+                return path;
+        }
+
 #ifdef HAVE_WORDEXP
 	/* Handle tilde and environment variable expansion in session path */
 	string ret = path;