From e5ea49652701097c03e6f363fea1a5d5dc2d6119 Mon Sep 17 00:00:00 2001
From: ailin-nemui <ailin-nemui@users.noreply.github.com>
Date: Sun, 13 Jul 2025 17:57:31 +0000
Subject: [PATCH] Merge pull request #1572 from ailin-nemui/perl-redefined

fix _GNU_SOURCE redefined warning due to perl ccflags

(cherry picked from commit aa285d45cde7e33cb8fac71a7b8e45ce93fe1a23)
---
 src/perl/perl-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/perl/perl-core.c b/src/perl/perl-core.c
index 5722a26f..5b669f93 100644
--- a/src/perl/perl-core.c
+++ b/src/perl/perl-core.c
@@ -18,7 +18,9 @@
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
 #include <wchar.h>
 
 #define NEED_PERL_H