mxcl/homebrew — pull request #13513 by 2bits (2012-07-20 18:14:44+00:00)
Title: lilypond: add devel block & python requirement

Add a devel block for Lilypond so that people can test out the
current release candidate.

Add a `fails_with :clang` block due to C99 pointer errors.

Add a Requirement that Python be compiled with `--use-llvm` so
that Lilypond and Python both will be compiled with llvm to solve
a build error where Lilypond uses both its own `cflags` and the
ones from Python.

Add a `def test` to produce some output in a pdf that is displayed
with `qlmanage`.

This doesn't work atm because I need to find a way to test if Python
was compiled with `--use-llvm` but I can't query that from Tab I guess.