From 5a28f14096c3f2e548cdf6bcfd008930e6a4e733 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 19 Jul 2018 10:55:19 -0700
Subject: [PATCH] Use _GNU_SOURCE instead of _BSD_SOURCE and _SYSV_SOURCE

uemacs uses a lot of legacy stuff, which causes warnings with newer
toolchains.

This makes it build reasonably warning-free.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index f93aa28..89a34be 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ CFLAGS=-O2 $(WARNINGS) -g
 #CFLAGS=-O4 -DSVR4		# Sun
 #CFLAGS=-O -qchars=signed	# RS/6000
 ifeq ($(uname_S),Linux)
- DEFINES=-DAUTOCONF -DPOSIX -DUSG -D_BSD_SOURCE -D_SVID_SOURCE -D_XOPEN_SOURCE=600
+ DEFINES=-DAUTOCONF -DPOSIX -DUSG -D_XOPEN_SOURCE=600 -D_GNU_SOURCE
 endif
 ifeq ($(uname_S),FreeBSD)
  DEFINES=-DAUTOCONF -DPOSIX -DSYSV -D_FREEBSD_C_SOURCE -D_BSD_SOURCE -D_SVID_SOURCE -D_XOPEN_SOURCE=600