------- Comment #6 from jakub at gcc dot gnu dot org 2010-01-03 18:55 ------- That's just a misunderstanding what DESTDIR is. DESTDIR just says a directory where the / dir of installed files starts. It is used when you e.g. want to install everything into a temporary directory to package it up later (e.g. using tar, cpio, rpm, ...). If /usr/local/gcj/usr/* is where you want gcc to finally reside, you shouldn't use DESTDIR, but instead configure with --prefix /usr/local/gcj/usr.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42409
