--- a/thermferm/futil.c	Sat Jul 12 23:50:48 2014 +0200
+++ b/thermferm/futil.c	Sun Jul 13 17:31:45 2014 +0200
@@ -21,6 +21,7 @@
  *****************************************************************************/
 
 #include "thermferm.h"
+#include "futil.h"
 
 
 /*