From b1bcc47ffeeed0c689170dffa9089712ad222f17 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 10 Feb 2026 09:15:38 +0100
Subject: [PATCH] erp: Fix build issue with missing _GNU_SOURCE
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  CC       src/erp.o
src/erp.c: In function ‘erp_free’:
src/erp.c:357:9: error: implicit declaration of function ‘explicit_bzero’ [-Wimplicit-function-declaration]
  357 |         explicit_bzero(erp->rmsk, sizeof(erp->rmsk));
      |         ^~~~~~~~~~~~~~
---
 src/erp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/erp.c b/src/erp.c
index 05d1b3e2..ae09983f 100644
--- a/src/erp.c
+++ b/src/erp.c
@@ -24,6 +24,7 @@
 #include <config.h>
 #endif
 
+#define _GNU_SOURCE
 #include <stdint.h>
 #include <stdio.h>
 #include <errno.h>