--- ./options/options.ih.orig	2013-06-21 11:16:34.000000000 +0200
+++ ./options/options.ih	2013-11-27 18:56:37.000000000 +0100
@@ -4,6 +4,7 @@
 #include <bobcat/arg>
 #include <bobcat/string>
 #include <bobcat/mstream>
+#include <bobcat/a2x>
 
 using namespace std;
 using namespace FBB;