--- lib/libpam/modules/Makefile.inc.orig	2011-12-25 08:01:28.000000000 +0200
+++ lib/libpam/modules/Makefile.inc	2011-12-25 08:02:17.000000000 +0200
@@ -1,4 +1,6 @@
 # Include Makefiles from $SRCDIR
 
-.include </usr/src/lib/libpam/modules/Makefile.inc>
+LIBDIR=${PREFIX}/lib
+
+.include <${SYSDIR}/../lib/libpam/modules/Makefile.inc>