From e758ff78e5294e4358a8208c58db9189a7059120 Mon Sep 17 00:00:00 2001
From: Zhiming Wang <zmwangx@gmail.com>
Date: Mon, 3 Apr 2017 14:50:21 -0400
Subject: [PATCH] Allow custom CFLAGS and CPPFLAGS in Makefile

This is consistent with the fact that custom LDFLAGS are already allowed, and
for once, it makes warning options easier to control.

Also use automatic variables $@ and $^ consistently.
---
 Makefile | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 02f46614..af8b10b2 100644
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,7 @@ VERSION = 0.6
 PREFIX = /usr/local
 MANPREFIX = $(PREFIX)/man
 
-#CPPFLAGS = -DDEBUG
-#CFLAGS = -g
-CFLAGS = -O3 -march=native
+CFLAGS += -O3 -march=native
 LDLIBS = -lcurses
 
 DISTFILES = nnn.c config.def.h nnn.1 Makefile README.md LICENSE
@@ -21,8 +19,8 @@ $(LOCALCONFIG): config.def.h
 $(SRC): $(LOCALCONFIG)
 
 $(BIN): $(SRC)
-	$(CC) $(CFLAGS) -o $@ $(SRC) $(LDFLAGS) $(LDLIBS)
-	strip $(BIN)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+	strip $@
 
 install: all
 	mkdir -p $(DESTDIR)$(PREFIX)/bin