diff -ru calcurse-2.1~/src/calcurse.c calcurse-2.1/src/calcurse.c
--- calcurse-2.1~/src/calcurse.c	2008-11-01 17:06:33.000000000 +0100
+++ calcurse-2.1/src/calcurse.c	2008-11-01 17:07:19.000000000 +0100
@@ -41,6 +41,9 @@
 #include "todo.h"
 #include "args.h"
 #include "notify.h"
+#if ENABLE_NLS
+#include <locale.h>
+#endif
 
 
 /*