===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/calendar/io.c,v
retrieving revision 1.27
retrieving revision 1.29
diff -u -r1.27 -r1.29
--- src/usr.bin/calendar/io.c	2004/12/10 15:00:27	1.27
+++ src/usr.bin/calendar/io.c	2005/04/15 14:28:56	1.29
@@ -1,4 +1,4 @@
-/*	$OpenBSD: io.c,v 1.27 2004/12/10 15:00:27 mickey Exp $	*/
+/*	$OpenBSD: io.c,v 1.29 2005/04/15 14:28:56 otto Exp $	*/
 
 /*
  * Copyright (c) 1989, 1993, 1994
@@ -39,7 +39,7 @@
 #if 0
 static const char sccsid[] = "@(#)calendar.c  8.3 (Berkeley) 3/25/94";
 #else
-static char rcsid[] = "$OpenBSD: io.c,v 1.27 2004/12/10 15:00:27 mickey Exp $";
+static const char rcsid[] = "$OpenBSD: io.c,v 1.29 2005/04/15 14:28:56 otto Exp $";
 #endif
 #endif /* not lint */
 
@@ -377,8 +377,8 @@
 			(void)dup2(fderr, STDERR_FILENO);
 			(void)close(fderr);
 		}
-		execl(_PATH_CPP, "cpp", "-traditional", "-P", "-I.",
-		    _PATH_INCLUDE, (char *)NULL);
+		execl(_PATH_CPP, "cpp", "-traditional", "-undef", "-U__GNUC__",
+		    "-P", "-I.", _PATH_INCLUDE, (char *)NULL);
 		warn(_PATH_CPP);
 		_exit(1);
 	}