mingw ruby 1.9/1.8 how to install mysql from source

inspired by a question from JD[1], here's the instructions:

Looks like the only way I know of is (assuming ruby 1.9 with devkit [2]) 

1) download mysql 5.0.x windows "without installer" 

2) unzip, put/rename it to c:\mysql 

3) download mysql 2.8.1 binary from tmtm http://www.tmtm.org/en/mysql/ruby/ 

4) edit extconf so that anywhere it says mswin32 it now says mswin32|mingw  

4a) make sure that mysql's bin are *not* in your path [might not be ncessary, but just in case] 

5) run ruby extconf.rb -- --with-mysql-include=c:/mysql/include --with-mysql-lib=c:/mysql/lib/opt 

6) run make, then run make install 

7) make sure libmysql.dll is in your path or in current directory 8) run ruby -e 'require "mysql"' -- should work.

[1] http://www.ruby-forum.com/topic/188199#new

[2] http://programming-gone-awry.blogspot.com/2009/05/ruby-19-one-click-installer.html