From 4bc5c9ddd9ba0fc85c2049d3e8657de39af9de67 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@debian.org>
Date: Tue, 7 Jul 2026 20:35:29 +0200
Subject: [PATCH] Don't use __USE_GNU

Bug-Debian: https://bugs.debian.org/890432
Last-Update: 2025-07-11

__USE_GNU is a glibc-internal symbol.
AC_USE_SYSTEM_EXTENSIONS is the proper autoconf
way to enable extensions.

Gbp-Pq: Name no-use-gnu.patch
---
 configure.ac          | 1 +
 src/suricata-common.h | 6 ------
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index db76791e..be3855ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,6 +6,7 @@
     AM_INIT_AUTOMAKE([tar-ustar subdir-objects])
 
     AC_LANG([C])
+    AC_USE_SYSTEM_EXTENSIONS
     LT_INIT
     PKG_PROG_PKG_CONFIG
 
diff --git a/src/suricata-common.h b/src/suricata-common.h
index 3bfe4255..cce4f738 100644
--- a/src/suricata-common.h
+++ b/src/suricata-common.h
@@ -35,12 +35,6 @@ extern "C"
 #define DBG_PERF
 #endif
 
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#define __USE_GNU
-
 #if defined(__clang_analyzer__)
 /* clang analyzer acts as DEBUG_VALIDATION in some places, so
  * force this so #ifdef DEBUG_VALIDATION code gets included */
-- 
2.30.2