mxcl/homebrew — pull request #10314 by 2bits (2012-02-19 02:30:22+00:00)
Title: mercurial fix error with xcodebuild and CLT

The setup.py in mercurial calls xcodebuild to decide whether to remove
an arch ppc flag, but anyone who only has the CLT installed will not
be able to return a valid number for xcodebuild -version. Setup.py
can not handle the error, and compile fails. This commit stops
setup.py from calling xcodebuild, and instead removes the ppc arch
flag for all users, because we don't compile for that target.