brew --config

$ brew doctor
Warning: /Library/Frameworks/Mono.framework detected
This can be picked up by CMake's build system and likely cause the build to
fail. You may need to move this file out of the way to compile CMake.

Warning: Your Homebrew is not installed to /usr/local
You can install Homebrew anywhere you want, but some brews may only build
correctly if you install in /usr/local. Sorry!

$ brew --config
HOMEBREW_VERSION: 0.9.4
ORIGIN: https://github.com/mxcl/homebrew.git
HEAD: 552074b5a345e1041eef866bf219edbf053b0825
HOMEBREW_PREFIX: /usr/homebrew
HOMEBREW_CELLAR: /usr/homebrew/Cellar
CPU: 8-core 64-bit sandybridge
OS X: 10.7.5-x86_64
Xcode: 4.6.1
CLT: 1.0.0.9000000000.1.1249367152
GCC-4.2: build 5666
LLVM-GCC: build 2336
Clang: 4.2 build 425
X11: 2.7.4 => /opt/X11
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/homebrew/bin/python => /usr/homebrew/Cellar/python/2.7.4/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Ruby: /usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby