buildroot/package/iproute2/0003-configure-Define-_GNU_SOURCE-when-checking-for-setns.patch

From d5fe96ab70928508f072a47449e9b641e46de323 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 10 Aug 2022 22:34:40 -0700
Subject: [PATCH] configure: Define _GNU_SOURCE when checking for setns

glibc defines this function only as gnu extention

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
[ upstream status: d5fe96ab70928508f072a47449e9b641e46de323 ]
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index 440facb7..c02753bb 100755
--- a/configure
+++ b/configure
@@ -191,6 +191,7 @@ check_ipt_lib_dir()
 check_setns()
 {
     cat >$TMPDIR/setnstest.c <<EOF
+#define _GNU_SOURCE
 #include <sched.h>
 int main(int argc, char **argv)
 {
-- 
2.37.2