V3 PATCH: libio configury

[Benjamin Kosnik]

looks good. Thanks for cleaning this up mark.

-benjamin
> Wed Nov 15 18:39:34 2000  Mark P Mitchell  <mark@codesourcery.com>
> 
> 	* acinclude.m4 (GLIBCPP_ENABLE_CSTDIO): Substitute libio_la.
> 	* src/Makefile.am (libstdc___la_LIBADD): Use it.
> 	* aclocal.m4: Regenerated.
> 	* configure: Likewise.
> 	* Makefile.in: Likewise.
> 	* libio/Makefile.in: Likewise.
> 	* libmath/Makefile.in: Likewise.
> 	* libsupc++/Makefile.in: Likewise.
> 	* src/Makfile.in: Likewise.