--- main.c.orig	2012-08-04 14:33:05.000000000 +0200
+++ main.c	2012-08-04 14:33:36.000000000 +0200
@@ -629,7 +629,7 @@
 int setup_visual (int *argc_p, char **argv, Arg *args);
 void get_pointer_mapping (void);
 
-void main(int argc, char **argv)
+int main(int argc, char **argv)
 {
     Widget	    children[NCHILDREN];
     XEvent	    event;