--- ./Makefile.orig	1992-05-09 19:23:46.000000000 -0400
+++ ./Makefile	2014-03-11 22:14:36.359748029 -0400
@@ -1,8 +1,12 @@
-CCOPT= -O3
+CCOPT= ${CFLAGS}
+.ifdef PREFIX
+CCOPT+= -DPREFIX=\"${PREFIX}\"
+.endif
+
 OBJECTS= sok.o readscreen.o showscreen.o play.o save.o score.o
 
 sokoban: $(OBJECTS)
-	cc $(CCOPT) -static -o sokoban $(OBJECTS) -lcurses -ltermcap
+	cc $(CCOPT) -o sokoban $(OBJECTS) -lcurses -ltermcap
 sok.o: sok.c sokoban.h
 	cc $(CCOPT) -c sok.c