http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46655
--- Comment #6 from Michael Haubenwallner <michael.haubenwallner at salomon dot at> 2010-11-29 09:05:53 UTC --- I'm in contact with IBM vi a customer's support channel - initially for another problem, and have added this 64k-line-limit recently. Although no reply yet, I'll add updates here when available.