From d51ecbc40287f9ee7c2b8875ebd85790e4529eed Mon Sep 17 00:00:00 2001
From: Mykyta Holubakha <hilobakho@gmail.com>
Date: Sun, 11 Jun 2017 00:01:50 +0300
Subject: Make it more portable

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index d60e9d4..63cdcc4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 0.2
 DESTDIR ?= /usr/local
-CFLAGS += -std=c99 -g -Wall -Wextra -DVERSION=\"${VERSION}\" -D_GNU_SOURCE
+CFLAGS += -std=c99 -g -Wall -Wextra -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809L
 MODE ?= 4711
 
 all: brightnessctl
-- 
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