I noticed that there is at least one problem in:
Maybe SUMO has the same problem, I haven't confirmed it though.
The file pccl.elc is compiled for XEmacs with MULE and it
requires the feature `ccl'. Non-MULE XEmacs users should never
use this. If you have a need to use APEL for some packages,
e.g. emacs-w3m, you may install APEL as an XEmacs package using
`make install-package'. The source tarball is available in:
Katsumi Yamaoka <yamaoka(a)jpl.org>