--- bzip2-1.0.6/Makefile-orig	2010-09-10 17:46:02.000000000 -0500
+++ bzip2-1.0.6/Makefile	2013-11-21 13:55:11.000000000 -0600
@@ -18,10 +18,10 @@
 CC=gcc
 AR=ar
 RANLIB=ranlib
-LDFLAGS=
+LDFLAGS+=
 
 BIGFILES=-D_FILE_OFFSET_BITS=64
-CFLAGS=-Wall -Winline -O2 -g $(BIGFILES)
+CFLAGS+=-Wall -Winline -O2 -g $(BIGFILES)
 
 # Where you want it installed when you do 'make install'
 PREFIX=/usr/local