--- Makefile.in.orig	Wed Apr  2 18:59:19 2003
+++ Makefile.in	Wed Nov  5 19:33:10 2008
@@ -84,7 +84,7 @@ singlegunshot.wav bulletricochet.wav explode.wav gasp.
 scorefiledir = /var/games
 scorefile_DATA = oilwar.scores
 
-AM_CPPFLAGS = $(sound_flag) -DDATA_DIR=\"$(datafiledir)/\" -DSCORE_DIR=\"$(scorefiledir)/\"
+AM_CPPFLAGS = $(sound_flag) -DDATA_DIR=\"$(prefix)/share/oilwar/\" -DSCORE_DIR=\"$(scorefiledir)/\"
 
 bin_PROGRAMS = oilwar
 oilwar_SOURCES = Main.hpp Main.cpp cParticleSystem.hpp cParticleSystem.cpp Config.hpp
