File 0001-Honor-user-C-XX-FLAGS.patch of Package zopfli

From fa0a91f17ed7e5cf4c772457fc738ab69b0db9e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Thu, 11 Feb 2016 00:12:10 +0200
Subject: [PATCH] Honor user C(XX)FLAGS

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 26518ec..36eada9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 CC = gcc
 CXX = g++
 
-CFLAGS = -W -Wall -Wextra -ansi -pedantic -lm -O2
-CXXFLAGS = -W -Wall -Wextra -ansi -pedantic -O2
+override CFLAGS := -W -Wall -Wextra -ansi -pedantic -lm -O2 $(CFLAGS)
+override CXXFLAGS := -W -Wall -Wextra -ansi -pedantic -O2 $(CXXFLAGS)
 
 ZOPFLILIB_SRC = src/zopfli/blocksplitter.c src/zopfli/cache.c\
                 src/zopfli/deflate.c src/zopfli/gzip_container.c\
-- 
2.5.0