As you'll notice, there will be lots more packages bumped for the rebase to gcc. Most completed today, but we'll be working through a list of failures over the next couple days. Things will still be in a bit of flux, but we're working on it.
Java is still being worked on too. Getting the java stack built with gcj is a great accomplishment and I really respect our java and gcj team for putting in the work to further the free java. Please bare with us as we finalize the development changes necessary to accomplish this task.
Does the new GCC introduce any run-time/ABI breakage which requires packages in Fedora Extras Development to be rebuilt? Or does it only reveal problematic source code?
I think all the extras need to be rebuilt for this. I know seahorse for one needs it (and may need some fixes).
AFAIK, seahorse was affected by SONAME changes in some of its dependencies, which made a rebuild necessary. That was a change not related to the GCC upgrade. My question is not about ordinary breakage through upgrades of dependencies.
Yes, I think that's true but I also think there is some gcc41 rebuild issues with it too (well there seems to be when I just try to rebuild the srpm. I think the binaries produced by gcc 4 and 4.1 are compatible so most things won't need to be rebuilt, but then its probably good for them to be rebuilt too.
Pete