Description: change = to += CFLAGS and LDFLAGS, and include CPPFLAGS for hardening.
Author: Paulo Roberto Alves de Oliveira (aka kretcheu) <kretcheu@gmail.com>
Last-update: 2015-08-09
Index: pngphoon-1.2/Makefile
===================================================================
--- pngphoon-1.2.orig/Makefile
+++ pngphoon-1.2/Makefile
@@ -1,7 +1,7 @@
 
 CC=gcc
-CFLAGS=-Os -Wall -Wextra -pedantic
-LDFLAGS=-lpng -lz -lm
+CFLAGS += -Os -Wall -Wextra -pedantic
+LDFLAGS += -lpng -lm
 
 all: pngphoon
 
@@ -9,7 +9,7 @@ pngphoon: image.o pngwrite.o moon.o main
 	$(CC) -o $@ $^ $(LDFLAGS)
 
 %.o: %.c
-	$(CC) $(CFLAGS) -c $<
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
 
 clean:
 	rm -f *.o pngphoon
