# Unable to install ruby-debug

**URL:** <https://www.ruby-forum.com/t/unable-to-install-ruby-debug/188061>\
**Category:** Ruby\
**Created:** [May 5, 2010, 5:59am UTC](https://www.ruby-forum.com/t/unable-to-install-ruby-debug/188061 "2010-05-05T05:59:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![parvg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/bbe5ce/32.png) [@parvg](https://www.ruby-forum.com/u/parvg)\
**Post date:** [May 5, 2010, 5:59am UTC](https://www.ruby-forum.com/t/unable-to-install-ruby-debug/188061/1 "2010-05-05T05:59:15Z")

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$: sudo gem install ruby-debug  
Building native extensions. This could take a while…  
ERROR: Error installing ruby-debug:  
ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby  
mkrf\_conf.rb  
Building native extensions. This could take a while…

Gem files will remain installed in  
/Library/Ruby/Gems/1.8/gems/ruby-debug for inspection.  
Results logged to  
/Library/Ruby/Gems/1.8/gems/ruby-debug/ext/gem\_make.out

Environment: mac os x 10.6  
RubyGems Environment:

- RUBYGEMS VERSION: 1.3.6
- RUBY VERSION: 1.8.7 (2008-08-11 patchlevel 72)  
[universal-darwin10.0]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
- RUBY EXECUTABLE:  
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- RUBYGEMS PLATFORMS:
  - ruby
  - universal-darwin-10

- GEM PATHS:
  - /Library/Ruby/Gems/1.8
  - /Library/Ruby/Gems/1.8/gems
  - 

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8

- GEM CONFIGURATION:
  - :update\_sources =\> true
  - :verbose =\> true
  - :benchmark =\> false
  - :backtrace =\> false
  - :bulk\_threshold =\> 1000
  - :gempath =\> “/Library/Ruby/Gems/1.8/gems”
  - :sources =\> [“[http://gems.rubyforge.org/](http://gems.rubyforge.org/)”,  
“[http://gems.github.com](http://gems.github.com)”]

- REMOTE SOURCES:
  - [http://gems.rubyforge.org/](http://gems.rubyforge.org/)
  - [http://gems.github.com](http://gems.github.com)

I have tried to install on older version (0.7.5), but no luck.

Thanks in advance for your help!

---

<div class="post-metadata">

**Author:** ![parvg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/bbe5ce/32.png) [@parvg](https://www.ruby-forum.com/u/parvg)\
**Post date:** [May 5, 2010, 7:55am UTC](https://www.ruby-forum.com/t/unable-to-install-ruby-debug/188061/2 "2010-05-05T07:55:35Z")

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On May 5, 12:59 am, “Parv G.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> /Library/Ruby/Gems/1.8/gems/ruby-debug for inspection.  
> Results logged to  
> /Library/Ruby/Gems/1.8/gems/ruby-debug/ext/gem\_make.out

Please paste the contents of gem\_make.out indicated above.

It might be possible that Xcode hasn’t been installed in your Snow  
Leopard installation?

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<div class="post-metadata">

**Author:** ![parvg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/bbe5ce/32.png) [@parvg](https://www.ruby-forum.com/u/parvg)\
**Post date:** [May 5, 2010, 2:29pm UTC](https://www.ruby-forum.com/t/unable-to-install-ruby-debug/188061/3 "2010-05-05T14:29:52Z")

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Thanks for the reply, here it is:

$ cat  
/Library/Ruby/Gems/1.8/gems/ruby-debug-base-0.10.3/ext/gem\_make.out  
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby  
extconf.rb  
mkmf.rb can’t find header files for ruby at  
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h