As long as amd64 and i386 switch too, then I think it would be okay for us to do the same? But I really want to hear confirmation from Robert and/or Christoph.I don't think I am really qualified/knowledged to make an informed decision here -- the people with the real knowledge in kfreebsd internals are Robert and Petr. I was hoping to get input from them.I don't think changing the default makes any difference to us. We already hardcode specific GCC version in places that could be affected by a new version.
In general, it is better for us to use same gcc version as (linux-)i386, hurd-i386 and (linux-)amd64. The exception might be in kfreebsd specific packages and glibc, but they can set non-default gcc easily individually.
So please switch default gcc to the same version as under linux i386/amd64 also for kfreebsd i386/amd64. Petr