diff -Naur netris-0.52/curses.c netris-0.52.patched/curses.c
--- netris-0.52/curses.c	2003-08-13 03:33:02.000000000 +0200
+++ netris-0.52.patched/curses.c	2005-01-03 16:27:30.646054296 +0100
@@ -25,6 +25,7 @@
 #include <curses.h>
 #include <string.h>
 #include <stdlib.h>
+#include <time.h>
 
 #ifdef NCURSES_VERSION
 # define HAVE_NCURSES