--- Makefile.in.orig	2010-09-17 03:28:16.000000000 +0400
+++ Makefile.in	2011-02-11 06:36:51.703656490 +0300
@@ -2,8 +2,8 @@
 exec_prefix = @exec_prefix@
 
 BINDIR = @bindir@
-DATADIR = @datadir@
 DATAROOTDIR = @datarootdir@
+DATADIR = ${DATAROOTDIR}
 LIBDIR = @libdir@
 SYSCONFDIR = @sysconfdir@
 APPNAME = gnome_wave_cleaner

.