-SOURCEDIR := $(prefix)/usr/share/common-lisp/source/${pkg}
-DOCDIR := $(prefix)/usr/share/doc/${debpkg}
+pkg-ver := $(debpkg)-$(UPSTREAM_VER)
+clc-source := usr/share/common-lisp/source
+clc-systems := usr/share/common-lisp/systems
+clc-uffi := $(clc-source)/$(pkg)-$(UPSTREAM_VER)
+
+doc-dir := usr/share/doc/${debpkg}
+lispfiles := $(clc-uffi)