diff -ur monica-3.7.orig/monica.cpp monica-3.7/monica.cpp
--- monica-3.7.orig/monica.cpp	2008-06-02 06:45:50.000000000 +0300
+++ monica-3.7/monica.cpp	2009-07-24 20:42:12.000000000 +0300
@@ -14,6 +14,7 @@
 #include <FL/Fl_Tooltip.H>
 #include <FL/Fl_Pixmap.H>
 
+#include <cstdio>
 #include <cstdlib>
 #include <string>
 #include <iostream>