From: Luis Lavena <luislavena@...>
Date: 2010-12-07T22:25:21+09:00
Subject: Re: install mysql problem

On Dec 7, 4:15 am, Pen Ttt <myocean...@yahoo.cn> wrote:
> in my console,
> pt@pt:~$ sudo gem install mysql
> [sudo] password for pt:
> Building native extensions.  This could take a while...
> ERROR:  Error installing mysql:
>   ERROR: Failed to build gem native extension.
>
> /usr/bin/ruby1.8 extconf.rb
> extconf.rb:10:in `require': no such file to load -- mkmf (LoadError)
>   from extconf.rb:10
>
> Gem files will remain installed in /var/lib/gems/1.8/gems/mysql-2.8.1
> for inspection.
> Results logged to
> /var/lib/gems/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out
> pt@pt:~$ gem -v
> 1.3.7
> pt@pt:~$
> what's wrong?
>

Your installation of Ruby is not complete.

Please install ruby-full

sudo apt-get install ruby-full

Also, mysql gem requires mysql headers, try "sudo apt-get install
mysql-dev", but dunno if that works as I'm not familiarized with
Debian/Ubuntu packaging conventions

--
Luis Lavena