On Tuesday 01 July 2008, Justin To wrote:
>  Ok, I typed it into the window's command prompt, but i get this error:
>    \mysql-ruby-2.8pre4\extconf.rb --with-mysql-dir
> 
>  *** /extconf.rb failed ***
>  Could not create Makefile due to some reason, probably lack of necessary
>  libraries and/or headers. Check the mkmf.log file for more details. ...

Have you looked at the mkmf.log file? What does it say?

Stefano