Also seems to be duplicate of http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=3718&database=gcc (yes, it is a actually a different file, but they differ only slightly, especially in the place where the ICE occurs). It seems there are quite a few people out there trying to compile ORBacus ;-) http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=4009&database=gcc