-LIBDIR = $(DESTDIR)/lib/pppd/$(PPPDVERSION)
-
-PPPDVERSION = $(shell awk -F '"' '/VERSION/ { print $$2; }' ../../patchlevel.h)
+MANDIR = $(DESTDIR)/share/man/man8
+LIBDIR = $(INSTROOT)@LIBDIR@
+VERSION = @VERSION@
+PLUGINDIR= $(LIBDIR)/pppd/$(VERSION)