--- ./BSDmakefile.orig	2011-05-22 15:52:03.000000000 +0200
+++ ./BSDmakefile	2011-06-20 19:22:57.278509671 +0200
@@ -16,9 +16,10 @@
 
 DEPDIR=depends
 ALLDEPS=$(DEPDIR)/all
-CFLAGS=-c -g -O3 -Wall -Werror -fPIC
-LDFLAGS=-g -O3 -Wall -Werror
-CC=gcc
+CFLAGS?=-c -g -O3 -Wall -Werror
+CFLAGS+= -c -fPIC
+LDFLAGS?=-g -O3 -Wall -Werror
+CC?=gcc
 
 all:		libsoldout.so mkd2html mkd2latex mkd2man