(USE): Changes to shut up gcc 2.7.0.

src/include/rcs.h

 /*
- * $Id: rcs.h,v 1.2 1993/02/12 14:09:07 ceder Exp $
+ * $Id: rcs.h,v 1.3 1995/09/01 19:58:00 ceder Exp $
  * Copyright (C) 1993  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM system.
@@ -27,7 +27,10 @@
    It is used in every LysKOM file that uses the RCS keywords to
    initialize an rcsid string. */
 
-#if __GNUC__ == 2
+#if ____GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+#define USE(var) \
+            static void * use_##var __attribute__ ((unused)) = (void *) &var
+#elif __GNUC__ == 2
 #define USE(var) \
             static void * use_##var = (&use_##var, (void *) &var)
 #else