configuring libraries

[K. Richard Pixley]

I'm trying to use autoconf to configure a libc sort of library and
having some trouble.

AC_PROG_CC tries to link an executable in order to determine whether
the C compiler is functional.  But, of course, at this point in my
toolchain development, I haven't yet built a crt0.o as it's in *this*
directory, which can't be built until after it's configured.

Oops.  Topological loop.

Is there a check to find/set CC which checks only to see if
compilation is possible?

--rich