bug_brew_cairo

PCUser@air-2.local click $brew --config
HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/Homebrew/homebrew
HEAD: 3236e231cba16658a26005183ec1cd0ae7ac6bee
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: quad-core 64-bit haswell
OS X: 10.9.3-x86_64
Xcode: 5.1.1
CLT: 5.1.0.0.1.1396320587
Clang: 5.1 build 503
X11: 2.7.6 => /opt/X11
System Ruby: 2.0.0-451
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /usr/bin/ruby

PCUser@air-2.local click $brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libFXCGPHttp.dylib

Warning: Unbrewed static libraries were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected static libraries:
    /usr/local/lib/libFXCGPHttpBase.a
    
    
    
  PCUser@air-2.local click $HOMEBREW_MAKE_JOBS=1 brew install -v cairo 2>&1
Error: uninitialized constant OS::Mac::Quartz
Please report this bug:
    https://github.com/Homebrew/homebrew/wiki/troubleshooting
/usr/local/Library/Homebrew/requirements/x11_dependency.rb:23:in `block in <class:X11Dependency>'
/usr/local/Library/Homebrew/requirement.rb:29:in `instance_eval'
/usr/local/Library/Homebrew/requirement.rb:29:in `block in satisfied?'
/usr/local/Library/Homebrew/requirement.rb:132:in `yielder'
/usr/local/Library/Homebrew/requirement.rb:28:in `satisfied?'
/usr/local/Library/Homebrew/formula_installer.rb:266:in `block in expand_requirements'
/usr/local/Library/Homebrew/requirement.rb:165:in `block in prune?'
/usr/local/Library/Homebrew/requirement.rb:163:in `catch'
/usr/local/Library/Homebrew/requirement.rb:163:in `prune?'
/usr/local/Library/Homebrew/requirement.rb:151:in `block (2 levels) in expand'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/set.rb:232:in `each_key'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/set.rb:232:in `each'
/usr/local/Library/Homebrew/requirement.rb:150:in `block in expand'
/usr/local/Library/Homebrew/requirement.rb:149:in `each'
/usr/local/Library/Homebrew/requirement.rb:149:in `expand'
/usr/local/Library/Homebrew/formula.rb:419:in `recursive_requirements'
/usr/local/Library/Homebrew/formula_installer.rb:257:in `expand_requirements'
/usr/local/Library/Homebrew/formula_installer.rb:223:in `compute_and_install_dependencies'
/usr/local/Library/Homebrew/formula_installer.rb:152:in `install'
/usr/local/Library/Homebrew/cmd/install.rb:118:in `install_formula'
/usr/local/Library/Homebrew/cmd/install.rb:45:in `block in install'
/usr/local/Library/Homebrew/cmd/install.rb:45:in `each'
/usr/local/Library/Homebrew/cmd/install.rb:45:in `install'
/usr/local/Library/brew.rb:131:in `<main>'