--- OLD/xc/lib/ICE/ICElib.h	Thu Jan  1 00:00:00 1970
+++ NEW/xc/lib/ICE/ICElib.h	Thu Jan  1 00:00:00 1970
@@ -415,7 +415,7 @@
 #endif
 );
 
-extern IceFlush (
+extern void IceFlush (
 #if NeedFunctionPrototypes
    IceConn		/* iceConn */
 #endif