Module Name: src
Committed By: christos
Date: Sat Jan 23 14:24:43 UTC 2016
Modified Files:
src/usr.bin/m4: main.c
Log Message:
Explain what REDIRECT is for.
To generate a diff of this commit:
cvs rdiff -u -r1.45 -r1.46 src/usr.bin/m4/main.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/m4/main.c
diff -u src/usr.bin/m4/main.c:1.45 src/usr.bin/m4/main.c:1.46
--- src/usr.bin/m4/main.c:1.45 Sat Jan 16 16:12:27 2016
+++ src/usr.bin/m4/main.c Sat Jan 23 09:24:43 2016
@@ -1,5 +1,5 @@
/* $OpenBSD: main.c,v 1.77 2009/10/14 17:19:47 sthen Exp $ */
-/* $NetBSD: main.c,v 1.45 2016/01/16 21:12:27 christos Exp $ */
+/* $NetBSD: main.c,v 1.46 2016/01/23 14:24:43 christos Exp $ */
/*-
* Copyright (c) 1989, 1993
@@ -42,7 +42,7 @@
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
-__RCSID("$NetBSD: main.c,v 1.45 2016/01/16 21:12:27 christos Exp $");
+__RCSID("$NetBSD: main.c,v 1.46 2016/01/23 14:24:43 christos Exp $");
#include <assert.h>
#include <signal.h>
#include <getopt.h>
@@ -325,6 +325,11 @@ main(int argc, char *argv[])
}
#ifdef REDIRECT
+ /*
+ * This is meant only for debugging; it makes all output
+ * go to a known file, even if the command line options
+ * send it elsewhere. It should not be turned of in production code.
+ */
if (freopen("/tmp/m4", "w+", stderr) == NULL)
err(EXIT_FAILURE, "Can't redirect errors to `%s'",
"/tmp/m4");
