uade-1.00.ebuild has stuff that is not needed: src_install() { make DESTDIR="${D}" install || die 'make install failed' DESTDIR="${D}" does not do anything as far as I know. The Makefile doesn't recognize such environment variable. That particular attribute is handled by --package-prefix, so I recommend DESTDIR="${D}" is just removed.
A fixed ebuild has just been committed to the CVS. Thanks.