--- src/tigr/show-diff.cc.orig	2008-06-16 17:55:34.000000000 +0000
+++ src/tigr/show-diff.cc.orig	2008-06-16 17:56:25.000000000 +0000
@@ -14,6 +14,8 @@ 
 #include <cstdlib>
 #include <cassert>
 #include <climits>
+#include <algorithm>
+
 using namespace std;