I just downloaded the full tarball for 21.4.4 and tried to build it on Solaris 2.7. I also downloaded the latest xemacs and mule sumo tarballs. Everything compiles but it fails to run temacs. It dumps core at this point: Loading /apps/public/XEmacs/src/xemacs-21.4.4/build-motif/lisp/auto-show.elc... Loading /apps/public/XEmacs/src/xemacs-21.4.4/build-motif/lisp/loadhist.elc... Loading /apps/public/XEmacs/src/xemacs-21.4.4/build-motif/lisp/loaddefs.elc... Loading /apps/public/XEmacs/lib/mule-packages/lisp/egg-its/dumped-lisp.el... Loading egg-sj3-leim... Loading /apps/public/XEmacs/lib/mule-packages/lisp/skk/dumped-lisp.el... Loading skk-leim... Loading skk-foreword... Loading advice...*** Error in XEmacs initialization (void-function byte-compile) *** Backtrace really-early-error-handler((void-function byte-compile)) byte-compile(documentation) This looks exactly like the same error I had reported for 21.4.0 except I've updated everything. Back then I just reinstalled the individual mule packages which DON'T have a dumped-lisp.el file in them. Everything worked after that, I think. I'm going to try to just delete the dumped-lisp.el files (in egg-its and skk) and see what happens.... Ok. That went fine. I just checked the egg-its package and it doesn't have a dumped-lisp.el file in it, but the mule sumo does. A packaging error? Ray