diff -u -r a/config.hpp b/config.hpp
--- a/config.hpp	2005-06-20 13:28:29.000000000 +0200
+++ b/config.hpp	2008-12-17 19:40:05.000000000 +0100
@@ -24,6 +24,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <cstring>
 
 #include <errno.h>
 #include <unistd.h>