diff -ruN Quarter-1.0.0/src/Quarter/Quarter.cpp my/src/Quarter/Quarter.cpp
--- Quarter-1.0.0/src/Quarter/Quarter.cpp	2009-01-26 22:47:07.000000000 +0100
+++ my/src/Quarter/Quarter.cpp	2014-08-14 01:48:45.019728780 +0200
@@ -123,6 +123,7 @@
   \subpage examiner
 */
 
+#include <stdio.h>
 
 #include <Inventor/SoDB.h>
 #include <Inventor/nodekits/SoNodeKit.h>