On May 27, 2008, at 12:41 PM, Jon A. Lambert wrote:

> How do you pass configuration options to extconf.rb when installing  
> a gem?
> Specifically I'd like to configure ruby-gd.
>
> $ gem install ruby-gd ??something?? --with-freetype --with-ttf -- 
> with-jpeg --enable-gd2_0

gem install ruby-gd -- --configure-options