From 45cb2320626c18cd45c4e1e1cb4dc150a9a8e876 Mon Sep 17 00:00:00 2001
From: Christopher Faulet <cfaulet@haproxy.com>
Date: Thu, 3 Jul 2025 16:30:14 +0200
Subject: [PATCH] BUILD: cfgparse-tcp: Add _GNU_SOURCE for TCP_MD5SIG_MAXKEYLEN

It is required for the musl librairy to be sure TCP_MD5SIG_MAXKEYLEN is
defined and avoid build errors.
---
 src/cfgparse-tcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cfgparse-tcp.c b/src/cfgparse-tcp.c
index 0265e7d19..40419cc51 100644
--- a/src/cfgparse-tcp.c
+++ b/src/cfgparse-tcp.c
@@ -10,6 +10,7 @@
  *
  */
 
+#define _GNU_SOURCE // for TCP_MD5SIG_MAXKEYLEN
 #include <ctype.h>
 #include <errno.h>
 #include <stdio.h>