From a5a67b5de4b8fd316c4f813cd1ae1e2c7fba3b9b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 10 Feb 2026 09:07:52 +0100
Subject: [PATCH] eapol: Fix build issue with missing _GNU_SOURCE
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  CC       src/eapol.o
src/eapol.c: In function ‘eapol_decrypt_key_data’:
src/eapol.c:314:17: error: implicit declaration of function ‘explicit_bzero’ [-Wimplicit-function-declaration]
  314 |                 explicit_bzero(key, sizeof(key));
      |                 ^~~~~~~~~~~~~~
---
 src/eapol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/eapol.c b/src/eapol.c
index ab77746f..372549c6 100644
--- a/src/eapol.c
+++ b/src/eapol.c
@@ -24,6 +24,7 @@
 #include <config.h>
 #endif
 
+#define _GNU_SOURCE
 #include <string.h>
 #include <alloca.h>
 #include <linux/if_ether.h>