From: Morten Kjeldgaard <mok0@ubuntu.com>
Subject: Include string


--- a/src/Mol.h
+++ b/src/Mol.h
@@ -1,3 +1,4 @@
+#include <string>
 
 class MyString{
 public:
diff --git a/vcg/vcg/math/matrix33.h b/vcg/vcg/math/matrix33.h
index f1b0d7b..0fbc087 100644