From: Karel Zak <kzak@redhat.com>
Date: Mon, 19 Dec 2016 10:33:40 +0000 (+0100)
Subject: include/c.h: add errtryhelp()
X-Git-Tag: v2.30-rc1~341
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3077b37101c0c7b89368eafb043adc95eb8db45c;p=thirdparty%2Futil-linux.git

include/c.h: add errtryhelp()

Add code to print:

	Try '<progname> --help' for more information.

and exit.

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/include/c.h b/include/c.h
index 08dab934a0..bf11d61acb 100644
--- a/include/c.h
+++ b/include/c.h
@@ -204,6 +204,15 @@ errmsg(char doexit, int excode, char adderr, const char *fmt, ...)
 #endif /* !HAVE_ERR_H */
 
 
+/* Don't use inline function to avoid '#include "nls.h"' in c.h
+ */
+#define errtryhelp(eval) __extension__ ({ \
+	fprintf(stderr, _("Try '%s --help' for more information.\n"), \
+			program_invocation_short_name); \
+	exit(eval); \
+})
+
+
 static inline __attribute__((const)) int is_power_of_2(unsigned long num)
 {
 	return (num != 0 && ((num & (num - 1)) == 0));