sync config/ between GCC and src

[Paolo Bonzini]

Ralf Wildenhues wrote:
> I've applied the following patches to the GCC and the src CVS tree in
> order to get the config/ directory in sync again.  The change to GCC is
> merely a ChangeLog fixup.
> 
> Of the diffs added to src, I have checked that none of the changes
> impact generated files in the rest of the src tree:
> - src does not use the GCC_CHECK_UNWIND_GETIPINFO nor the
>   GCC_CHECK_EMUTLS macro anywhere,
> - the other changes were either in comments only (license updates),
>   or not in files that serve as inputs to generated files.
> 
> I've also rebuilt the src tree with these changes on i686-pc-linux-gnu,
> but that is pretty pointless in hashing out any potential issues, as the
> latter set of changes are confined to ppc-aix, cygwin.

Thanks.

Paolo