From 6f3d532e744dd8bfdfd1ce264a559c2f47bc49e3 Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Mon, 3 Feb 2025 07:27:53 +0100
Subject: [PATCH 2/2] fix futex check

---
 config.m4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.m4 b/config.m4
index f49e6a58f..f09daa052 100644
--- a/config.m4
+++ b/config.m4
@@ -163,6 +163,7 @@ AC_DEFUN([AC_SWOOLE_HAVE_FUTEX],
 [
     AC_MSG_CHECKING([for futex])
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+        #define _GNU_SOURCE 1
         #include <linux/futex.h>
         #include <syscall.h>
         #include <unistd.h>
-- 
2.48.1