WIP homebrew formula to build supercollider latest version

supercollider.rb

class Supercollider < Formula
  homepage "https://supercollider.github.io"
  url "https://github.com/supercollider/supercollider.git", :using => :git

  depends_on :xcode => :build
  depends_on :macos => :lion
  depends_on "cmake" => :build
  depends_on "qt5" => :build
  depends_on "readline" => :build

  version "3.7-devel"

  def install
    ENV.deparallelize
    bp = buildpath/"build"
    mkdir_p bp
    # std_cmake_args +
    args = [
      "-G", "Xcode",
      "-DCMAKE_PREFIX_PATH=#{Formula['qt5'].opt_prefix}",
      "-DSC_QT=1",
      # defaults to the user's OS
      # "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.7",
      "-DREADLINE_INCLUDE_DIR=#{Formula['readline'].opt_include}",
      "-DREADLINE_LIBRARY=#{Formula['readline'].opt_lib}/libreadline.dylib",
      ".."
    ]

    cd bp do
      system "cmake", *args
      xcodebuild "-target", "install"
    end

    # Copy the app into the cellar
    # User should then run `brew linkapps supercollider`
    # to install it into /Applications
    cp_r "./build/Install/SuperCollider/SuperCollider.app", prefix/"SuperCollider.app"

    # Install sclang and scsynth binaries.
    # sclang and scsynth need to be executed in the bundle
    # or the dynamic linking to the Qt libraries gets confused.
    # write_exec_script creates a wrapper to exec it
    bin.write_exec_script prefix/"SuperCollider.app/Contents/MacOS/sclang"
    bin.write_exec_script prefix/"SuperCollider.app/Contents/MacOS/scsynth"
  end

  test do
    # `test do` will create, run in and delete a temporary directory.
    assert File.exist?("#{prefix}/SuperCollider.app")
    assert File.exist?("#{bin}/sclang")
    assert File.exist?("#{bin}/scsynth")
    # when -V is implemented in sclang then we can run the process
    # system "#{bin}/sclang", "-V"
  end

end

I didn't see your comments before. thanks ! I did realize shortly afterwards that qt5 wasn't in master yet.

updated the gist. this works now.

It seemed to find readline on its own. It would be safer to specify it though.

it defaulted to Release already. -DCMAKE_BUILD_TYPE=Release