From: Eric Hodel <drbrain@...7.net>
Date: 2006-12-29T07:36:14+09:00
Subject: Re: Ruby extension issue

On Dec 28, 2006, at 13:45, Wim Vander Schelden wrote:

> I was able to fix the problem by changing my extconf.rb to:
>
>    require 'mkmf'
>
>    dir_config('gamer')
>    have_library("SDL", "SDL_Init")
>    have_header("SDL/SDL.h")
>    pkg_config("sdl")
>    create_makefile('gamer')
>
> However, I don't know *WHY* it works. The pkg_config seems to be  
> the crucial line.
> I just went through other people's extconf.rb files and guessed the  
> "sdl" value.
> Any help would be appreciated, since there seems to be no  
> documentation about
> pkg_config...

$ ruby extconf.rb
checking for SDL_Init() in -lSDL... no
checking for SDL/SDL.h... no
creating Makefile
$

You should never call create_makefile makefile when required  
libraries and headers can't be found.

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net

I LIT YOUR GEM ON FIRE!