require 'formula' class Libmusicbrainz :build def install neon = Formula.factory("neon") neon_args = "-DNEON_LIBRARIES:FILEPATH=#{neon.lib}/libneon.dylib -DNEON_INCLUDE_DIR:PATH=#{neon.include}/neon" system "cmake . #{std_cmake_parameters} #{neon_args}" system "make install" end end