--- Makefile.inc.in.org	2008-05-01 09:49:18.000000000 +0200
+++ Makefile.inc.in	2008-05-01 09:49:40.000000000 +0200
@@ -42,9 +42,9 @@
 INSTALL		= @INSTALL@
 INSTALL_PROGRAM	= @INSTALL_PROGRAM@
 INSTALL_DATA	= @INSTALL_DATA@
-prefix		= @prefix@
+prefix		= $(DESTDIR)@prefix@
 exec_prefix	= @exec_prefix@
 includedir	= @includedir@
 bindir		= @bindir@
-mandir		= @mandir@
+mandir		= $(DESTDIR)@mandir@
 libdir		= @libdir@