That did the trick.

I had to manually run the extconf.rb however and compile, and in doing
such by hand the tkutil/extconf.rb didn't recognize the compiled?
method.

Thanks

Forrest
Hidetoshi NAGAI wrote:
> From: "fkc_email-news @ yahoo dot com" <fkchang2000 / gmail.com>
> Subject: compiling ruby/tk on 64 bit Redhat?
> Date: Thu, 16 Nov 2006 03:20:14 +0900
> Message-ID: <1163614575.276369.186180 / f16g2000cwb.googlegroups.com>
> >   From reading the mkmf.log, I"m guessing it's not picking
> > /usr/X11R6/lib64 as the lib directory when it's trying to discover
> > libs.  It does try /usr/X11R6/lib, however.  I can't seem to figure out
> > a way to get it to add that search dir.  Guesses at adding with-x-lib
> > or with-x11-lib didn't seem to do it.
>
> Please try "--with-X11-lib=/usr/X11R6/lib64".
>                    ^(uppercase)
>
> I think that "--with-X11-dir". "--with-X11-include", and
> "--with-X11-lib" must be available.
> After trying, please report the result to this ML.
> -- 
> Hidetoshi NAGAI (nagai / ai.kyutech.ac.jp)