diff -uNr icebreaker-1.2.1.orig/Makefile icebreaker-1.2.1/Makefile
--- icebreaker-1.2.1.orig/Makefile	Mon Jul 30 05:32:36 2001
+++ icebreaker-1.2.1/Makefile	Wed Sep 12 12:29:16 2001
@@ -24,7 +24,7 @@
   OPTIMIZE=-O3
 endif
 
-CFLAGS=-Wall $(OPTIMIZE) $(SDL_CFLAGS) -DDATAPREFIX=\"$(datadir)/icebreaker\" -DHISCOREPREFIX=\"$(highscoredir)\"
+CFLAGS=$(OPTIMIZE) $(SDL_CFLAGS) -DDATAPREFIX=\"$(prefix)/share/games/icebreaker\" -DHISCOREPREFIX=\"$(highscoredir)\"
 
 SRC=icebreaker.c cursor.c grid.c laundry.c line.c penguin.c sound.c \
     level.c intro.c text.c status.c transition.c hiscore.c dialog.c \