illumos should build/work with GCC 4.6 or newer
Given the long lead time necessary to get everything fixed and tested, I've begun trying to get things happy with 4.6 and 4.6 happy with us.
It's not going to be a quick thing, as it wasn't last time.
Updated by Rich Lowe about 8 years ago
For what it's worth, I pushed a branch for the work-in-progress update to our GCC, which you should not use for any other purpose, to:
If people wanted a compiler with which to find the illumos bugs (which I also have a tree for, but it's not fit to put anywhere yet, because I have other stuff to do to the link-editor)