Greg Klanderman <greg(a)alphatech.com&gt; writes: It is attempting to find it as per the instructions in the pcl-cvs Makefile: ... PACKAGE = pcl-cvs PKG_TYPE = regular REQUIRES = xemacs-base ... Every package listed on the `REQUIRES' line must be present at byte-compile time. This is due either to needing some macro/defsubst defined in there, or pcl-cvs is require'ing some Lisp package in there. A quick grep shows that the latter is the case: pcl-cvs.el:(require 'add-log) ; for all the ChangeLog goodies You can't do it without xemacs-base. _Or_, fix pcl-cvs to only depend on xemacs-base at run-time instead of byte-compile time.