From 297fe5de717870601dd0f0a5dad778027bc5729e Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Thu, 13 Mar 2014 21:04:44 -0400
Subject: Put -lm -lpng at the end of the command line.

---
 Makefile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 582b209..7a23863 100644
--- a/Makefile
+++ b/Makefile
@@ -11,15 +11,18 @@
 
 CC ?= gcc
 CFLAGS ?= -std=c99 -pipe -O2 -Werror -Wall -Wpedantic -Wextra -Wno-sign-compare -Wno-unused-parameter -Wunreachable-code -Wshadow -Wpointer-arith -Wwrite-strings -Wcast-align -Wstrict-prototypes
-LDFLAGS ?= -lm -lpng
+LDFLAGS ?= -Wl,-O1,--sort-common,--as-needed,-z,relro
+LIBS ?= -lm -lpng
 RM ?= rm -f
 
 kd-forest: kd-forest.c kd-forest.h util.c util.h color.c color.h main.c
-	$(CC) $(CFLAGS) $(LDFLAGS) -o kd-forest kd-forest.c util.c color.c main.c
+	$(CC) $(CFLAGS) $(LDFLAGS) kd-forest.c util.c color.c main.c $(LIBS) -o kd-forest
 
-image: kd-forest
+kd-forest.png: kd-forest
 	./kd-forest
 
+image: kd-forest.png
+
 clean:
 	$(RM) kd-forest
 
-- 
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