mxcl/homebrew — pull request #22043 by toroidal-code (2013-08-21 07:09:11+00:00)
Title: Use a version of jack that will actually compile

Jack 1.9.7, 1.9.8, and 1.9.9 all fail to compile for various reasons
relating to clang. Instead, Jack1 v0.121.3 compiles successfully, and
provides the same API.