Missing <sys/cdefs.h>

[Benjamin Kosnik]

> I saw comments along these lines in the various ChangeLogs.  I would love
> to contribute to more auto* hackery, but I don't know a thing (seriously)
> about glibc, and don't really understand how libio actually accomplishes
> its tasks.  (There seem to be multiple libios sitting around, too...?)

I'm working on a branch right now. Once that becomes useful, I'll check 
it in, and we can  try to get solaris (and other targets) working again.

AT that point, your autoconf expertise will be wanted...

busy,
benjamin