graph-tool.rb

require 'formula'

class GraphTool < Formula
  homepage 'http://graph-tool.skewed.de/'
  url 'http://downloads.skewed.de/graph-tool/graph-tool-2.2.31.tar.bz2'
  sha1 '5e0b1c215ecd76191a82c745df0fac17e33bfb09'
  head 'https://github.com/count0/graph-tool.git'

  depends_on 'pkg-config' => :build
  depends_on 'boost' => 'c++11'
  depends_on 'cgal' => 'c++11'
  depends_on 'google-sparsehash' => ['c++11', :optional]
  depends_on 'cairomm' => 'c++11'
  depends_on 'py3cairo'
  depends_on 'python3'
  #depends_on 'matplotlib' => :python
  #depends_on 'numpy' => :python
  #depends_on 'scipy' => :python

  def install
    ENV.cxx11
    config_args = %W[
      --disable-debug
      --disable-dependency-tracking
      --disable-optimization
      --prefix=#{prefix}
      --with-python-module-path=/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages
    ]
    config_args << "--disable-sparsehash" if build.without? 'google-sparsehash'
    system "./configure", "LDFLAGS=-L/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/config-3.4m -lpython3.4m ", "PYTHON_EXTRA_LDFLAGS=-Wl,-stack_size,1000000 -framework CoreFoundation /usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/Python ", *config_args
    system "make", "install"
  end

end

Python3のバージョン（ここでは3.4.3）がハードコーディングされいるので、利用する場合は適宜自分の環境のバージョンに読み替えてください。

どうやらgraph-toolをPython3でインストールしたい場合は--with-python3をつければいいらしい。

brew install --with-python3 graph-tool