From de3c8ab3fb6823a83388f9e5501d2dad5bdb2632 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 10 Feb 2026 16:50:07 +0100
Subject: [PATCH] mschaputil: Fix build issue with missing _GNU_SOURCE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

  CC       src/mschaputil.o
src/mschaputil.c: In function ‘mschap_des_encrypt’:
src/mschaputil.c:55:9: error: implicit declaration of function ‘explicit_bzero’ [-Wimplicit-function-declaration]
   55 |         explicit_bzero(pkey, 8);
      |         ^~~~~~~~~~~~~~
---
 src/mschaputil.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mschaputil.c b/src/mschaputil.c
index 7a4927ba..165d1c89 100644
--- a/src/mschaputil.c
+++ b/src/mschaputil.c
@@ -24,6 +24,9 @@
 #include <config.h>
 #endif
 
+#define _GNU_SOURCE
+#include <string.h>
+
 #include <ell/ell.h>
 
 #include "src/missing.h"