From 91ca5839bd6e22a8bf4bb5d75d4dc18140387f9a Mon Sep 17 00:00:00 2001
From: illiliti <illiliti@protonmail.com>
Date: Wed, 20 May 2026 01:00:28 +0300
Subject: [PATCH] util/shm: set _XOPEN_SOURCE to unbreak fchmod

---
 util/shm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/util/shm.c b/util/shm.c
index 5eb87bb89..455cfe865 100644
--- a/util/shm.c
+++ b/util/shm.c
@@ -1,3 +1,4 @@
+#define _XOPEN_SOURCE 700
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>