build error on Jigsaw

[Henri Gomez]

> As I said, we haven't sync'ed up jigsaw/jigsaw for a few builds so don't
> have the hotspot changes to allow the code be compiled with gcc 4.7. There
> is a complex merge to do but hopefully we will be up to date in a few weeks.
> In the mean-time then you could try the merge yourself, alternatively
> downgrade gcc. There might also be gcc options that you could use that would
> ignore these warnings.

Ok, no problem, Fedora 17 will wait a big longer for Jigsaw.

Thanks