From 413b9790fef2743874078c58bed5aacc48992e64 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Petr=20=C5=A0pa=C4=8Dek?= <petr.spacek@nic.cz>
Date: Tue, 22 Oct 2019 12:40:49 +0200
Subject: [PATCH] doh debug: avoid warning about _GNU_SOURCE redefinition

---
 modules/http/debug_opensslkeylog.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/http/debug_opensslkeylog.c b/modules/http/debug_opensslkeylog.c
index 9ab0426be..9677c9512 100644
--- a/modules/http/debug_opensslkeylog.c
+++ b/modules/http/debug_opensslkeylog.c
@@ -27,7 +27,10 @@
 #   define NO_OPENSSL_102_SUPPORT
 #endif
 
-#define _GNU_SOURCE /* for RTLD_NEXT */
+#ifndef _GNU_SOURCE
+#   define _GNU_SOURCE /* for RTLD_NEXT */
+#endif
+
 #include <dlfcn.h>
 #ifndef NO_OPENSSL_102_SUPPORT
 #   include <openssl/ssl.h>
-- 
2.47.2