gistfile1.txt

$ brew --config

HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/Homebrew/homebrew
HEAD: a5e73d44cba09a13e7536c0c665bf2a041410d88
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: dual-core 64-bit penryn
OS X: 10.9.2-x86_64
Xcode: 5.1.1
CLT: 5.1.0.0.1.1396320587
Clang: 5.1 build 503
X11: 2.7.5 => /opt/X11
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /Users/jhummel/.rvm/rubies/ruby-1.9.3-p327/bin/ruby

$ brew doctor
Error: undefined method `url' for #<BottleSpecification:0x108987a98>
Please report this bug:
    https://github.com/Homebrew/homebrew/wiki/troubleshooting
/usr/local/Library/Taps/homebrew-versions/gmp4.rb:12
/usr/local/Library/Homebrew/software_spec.rb:54:in `instance_eval'
/usr/local/Library/Homebrew/software_spec.rb:54:in `bottle'
/usr/local/Library/Homebrew/formula.rb:655:in `bottle'
/usr/local/Library/Taps/homebrew-versions/gmp4.rb:11
/usr/local/Library/Homebrew/formulary.rb:63:in `require'
/usr/local/Library/Homebrew/formulary.rb:63:in `klass'
/usr/local/Library/Homebrew/formulary.rb:48:in `get_formula'
/usr/local/Library/Homebrew/formulary.rb:188:in `factory'
/usr/local/Library/Homebrew/formula.rb:397:in `factory'
/usr/local/Library/Homebrew/cmd/doctor.rb:1055:in `check_for_unlinked_but_not_keg_only'
/usr/local/Library/Homebrew/cmd/doctor.rb:1050:in `reject'
/usr/local/Library/Homebrew/cmd/doctor.rb:1050:in `check_for_unlinked_but_not_keg_only'
/usr/local/Library/Homebrew/cmd/doctor.rb:1132:in `send'
/usr/local/Library/Homebrew/cmd/doctor.rb:1132:in `doctor'
/usr/local/Library/Homebrew/cmd/doctor.rb:1131:in `each'
/usr/local/Library/Homebrew/cmd/doctor.rb:1131:in `doctor'
/usr/local/Library/brew.rb:105:in `send'
/usr/local/Library/brew.rb:105