From 7bcd57b8211f888f653233ee9ffd89cd2d89a010 Mon Sep 17 00:00:00 2001
From: Steven Watanabe <steven@providere-consulting.com>
Date: Wed, 16 Nov 2011 15:37:15 +0000
Subject: [PATCH] Fix regression

[SVN r75510]
---
 src/engine/subst.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/engine/subst.c b/src/engine/subst.c
index 71d9193f1..7e056c95d 100644
--- a/src/engine/subst.c
+++ b/src/engine/subst.c
@@ -106,6 +106,9 @@ static void free_regex( void * xregex, void * data )
 
 void regex_done()
 {
-    hashenumerate( regex_hash, free_regex, (void *)0 );
-    hashdone( regex_hash );
+    if ( regex_hash )
+    {
+        hashenumerate( regex_hash, free_regex, (void *)0 );
+        hashdone( regex_hash );
+    }
 }