http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49036
--- Comment #1 from Jim DeLaHunt <from.gcc_bugzilla at jdlh dot com> 2011-05-18 05:14:36 UTC --- Bug 41991 - gcj segfaults on i686-apple-darwin9 and x86_64-apple-darwin9 (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41991) is possibly related to this bug. It was the only GCC bug report I found which mentioned "program ecj1".