[loewenskind]

>The GCC compiler and toolchain aren't optimal, and I fully expect a major Linux distribution to switch to Clang/LLVM in the not too distant future.

Have you looked through the Linux kernel code? There is a lot of gcc specific stuff in there. I don't think the Clang change will be as fast as you think.

[rbanffy]

The worst that can happen is porting GCC features over to a GPL-licensed Clang fork.

[praptak]

It could actually be quite bad - maintaining a large featureset like this in a fork would probably cause major problems. Fortunately GCC compatibility is listed as one of the official goals of Clang.

[loewenskind]

It's not a catastrophe. It's just more work. Which was my point.