From ac03b15e3c173b58b892cb6e904173870aa1b81b Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Mon, 17 Sep 2018 17:51:00 +0200
Subject: [PATCH] Remove __USE_GNU defines

This is an internal glibc macro, it should not be necessary to use
it if we already define _GNU_SOURCE (we do through
AC_USE_SYSTEM_EXTENSIONS). Needing to use __USE_GNU generally
indicates an inclusion order problem (libc header included before
config.h).
---
 Zend/zend_alloc.c     | 3 ---
 ext/posix/posix.c     | 5 -----
 ext/sysvmsg/sysvmsg.c | 5 -----
 3 files changed, 13 deletions(-)

diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index 95727d126b..94ae805a64 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -88,9 +88,6 @@
 #  ifndef _GNU_SOURCE
 #   define _GNU_SOURCE
 #  endif
-#  ifndef __USE_GNU
-#   define __USE_GNU
-#  endif
 # endif
 # include <sys/mman.h>
 # ifndef MAP_ANON
diff --git a/ext/posix/posix.c b/ext/posix/posix.c
index 5a2f352e41..5952a4d05b 100644
--- a/ext/posix/posix.c
+++ b/ext/posix/posix.c
@@ -34,11 +34,6 @@
 #endif
 
 #include <sys/resource.h>
-
-#if defined(_GNU_SOURCE) && !defined(__USE_GNU)
-# define __USE_GNU
-#endif
-
 #include <sys/utsname.h>
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/ext/sysvmsg/sysvmsg.c b/ext/sysvmsg/sysvmsg.c
index 416d5c4594..a00b73ee8a 100644
--- a/ext/sysvmsg/sysvmsg.c
+++ b/ext/sysvmsg/sysvmsg.c
@@ -27,11 +27,6 @@
 #include "ext/standard/php_var.h"
 #include "zend_smart_str.h"
 
-#ifndef __USE_GNU
-/* we want to use mtype instead of __mtype */
-#define __USE_GNU
-#endif
-
 #include <sys/types.h>
 #include <sys/ipc.h>
 #include <sys/msg.h>
-- 
2.40.0