--- cs.h.orig	Thu Apr 24 15:09:06 2003
+++ cs.h	Thu Apr 24 15:09:25 2003
@@ -782,7 +782,7 @@
 # define POLL_EVENTS() STasks()
 # define __cdecl
 #else
-#ifdef LINUX
+#if defined(LINUX) && defined(HAVE_FLTK)
   extern int POLL_EVENTS(void);
 #else
 # define POLL_EVENTS()     (1)