From 0888183816636f994a3384cde211c88e0d4d1f6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Kr=C3=BCgler?= <daniel.kruegler@gmail.com>
Date: Fri, 27 Aug 2021 18:32:20 +0200
Subject: Ensure that _GNU_SOURCE is defined for bss_dgram.c

This fixes the following error with gcc10 under strict ANSI conditions:

.../crypto/bio/bss_dgram.c:373:20: error: 'const struct in6_addr' has no member named 's6_addr32'

CLA: trivial
Fixes #16449

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/16451)

(cherry picked from commit e8e1f6d1a9e599d575431f559200018b8f822e0f)
---
 crypto/bio/bss_dgram.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'crypto')

diff --git a/crypto/bio/bss_dgram.c b/crypto/bio/bss_dgram.c
index 942fd8b514..2b2e4d5f88 100644
--- a/crypto/bio/bss_dgram.c
+++ b/crypto/bio/bss_dgram.c
@@ -7,6 +7,10 @@
  * https://www.openssl.org/source/license.html
  */
 
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+
 #include <stdio.h>
 #include <errno.h>
 
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