From: Brian Candler Date: 2007-02-26T18:44:13+09:00 Subject: Re: fastthread installation fails - debian - w or w/o gem On Mon, Feb 26, 2007 at 06:40:05PM +0900, paukul@googlemail.com wrote: > Hi, > > iam trying to install fastthread, but it fails with the message: > --------- > Building native extensions. This could take a while... > extconf.rb:1:in `require': no such file to load -- mkmf (LoadError) > from extconf.rb:1 For Debian/Ubuntu, you need to install the ruby1.8-dev package to get mkmf (which is a standard part of Ruby, it's just that Debian broke up the core Ruby into shrapnel packages) HTH, Brian.