See bugzilla for a more complete list of issues:
https://bugzilla.icculus.org/buglist.cgi?product=d2x&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED

* Rearrange build system
* use autoconf macros to replace junk in pstypes.h
* use unarj (or code) to extract necessary files from the CD as needed.