From d12704c78f04eb6c666143953e81dec89e1cadea Mon Sep 17 00:00:00 2001
From: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Thu, 3 Jul 2014 01:32:17 +0530
Subject: Fix Wundef warning for __STDC_VERSION__

c4c4124473c187b5c4642611390897666c3d3970 added the _Noreturn macro for
pre-C11 compilers, but it now throws a new Wundef warning during `make
check` for __STDC_VERSION__ which gcc does not define by default.  The
following patch fixes this in line with other uses of __STDC_VERSION__
in the file.
---
 misc/sys/cdefs.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'misc')

diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index a5c3224a64..04db9563fb 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -382,7 +382,9 @@
 # define __glibc_likely(cond)	(cond)
 #endif
 
-#if !defined _Noreturn && __STDC_VERSION__ < 201112 && !__GNUC_PREREQ (4,7)
+#if (!defined _Noreturn \
+     && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
+     &&  !__GNUC_PREREQ (4,7))
 # if __GNUC_PREREQ (2,8)
 #  define _Noreturn __attribute__ ((__noreturn__))
 # else
-- 
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