# Ruby-opengl on a g4 mac 10.4

**URL:** <https://www.ruby-forum.com/t/ruby-opengl-on-a-g4-mac-10-4/118452>\
**Category:** Ruby\
**Created:** [October 27, 2007, 2:41am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-a-g4-mac-10-4/118452 "2007-10-27T02:41:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![360percent](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/3/b2d939/32.png) [@360percent](https://www.ruby-forum.com/u/360percent)\
**Post date:** [October 27, 2007, 2:41am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-a-g4-mac-10-4/118452/1 "2007-10-27T02:41:02Z")

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irb(main):001:0\> require ‘rubygems’  
=\> true  
irb(main):002:0\> gem ‘ruby-opengl’  
=\> true  
irb(main):003:0\> require ‘gl’  
LoadError: Failed to lookup Init function /usr/local/lib/ruby/gems/1.8/  
gems/ruby-opengl-0.40.1/lib/gl.bundle  
from /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/  
gl.bundle  
from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/  
custom\_require.rb:32:in `require' from (irb):3 irb(main):004:0> require 'glut' LoadError: Failed to lookup Init function /usr/local/lib/ruby/gems/1.8/ gems/ruby-opengl-0.40.1/lib/glut.bundle from /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/ glut.bundle from /usr/local/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:32:in`require’  
from (irb):4  
irb(main):005:0\>

What dependencies should I look at in order to correct this problem?

I have the apple dev tools, x11, etc…

Thanks!

---

<div class="post-metadata">

**Author:** ![360percent](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/3/b2d939/32.png) [@360percent](https://www.ruby-forum.com/u/360percent)\
**Post date:** [October 27, 2007, 6:24am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-a-g4-mac-10-4/118452/2 "2007-10-27T06:24:49Z")

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Hi,

I had the very same problem. Updating Rubygems fixed it for me.

Julian