Solaris build failure because of wchar_t handling?

[Joe Buck]

> Yup.  Definitely looks like candidate #1 for being broken.  Technically
> a solaris bug and should probably be reported to them, but I'll see what
> I can whip up for fixincludes as well.

Sun will probably argue that it is not a bug because they supply an
alternative stdlib.h for use with their C++ compiler, so it never sees
the one in /usr/include.  But it still makes life worse for us.