Another thing that I find annoying with the way we do versioning, is
that we typically move the source in libc from foo.c to __fooXX.c
and then in foo.c we add some defines, and #include "__fooXX.c". Wouldn't
it be saner to keep the source in foo.c and have the __fooXX.c file do
the include? This way the source stays in one place and does not keep
moving around. I would like to go through libc and clean that up. It also
makes it easy to remove compat code in the future if we want to.

christos