Hi,

In message "Re: mkmf"
    on Fri, 12 May 2006 23:47:03 +0900, de dardel benjamin <bdedardel / linuxmail.org> writes:

|>> extconf.rb:4:in `require': no such file to load -- mkmf (LoadError)
|>>         from extconf.rb:4

|I use a Debian

I think you have to install the development package ruby1.8-dev.

							matz.