icedtea6 fails to bootstrap on Fedora 17/18

[Stefan Ring]

> Debian and Ubuntu use the same sources to provide both ecj and ecj1.
> ftp://sourceware.org/pub/java/ still has 3.5 as the latest version available.
> If Fedora ships an updated ecj1, then it would be nice to see this "upstream" as
> well.

Interestingly, the package has been updated only rather recently (Oct
2012, long after the F17 release):
<http://pkgs.fedoraproject.org/cgit/ecj.git/commit/?h=f17&id=458c2cac2fae5947d3250c2cf4a0bbe1db4c47fa>.
The build works just fine with the previous version.