class Pybind11 < Formula
  desc "Seamless operability between C++11 and Python"
  homepage "https://github.com/pybind/pybind11"
  url "https://github.com/pybind/pybind11/archive/v2.4.0.tar.gz"
  sha256 "7ae50b024afb0d880fbd30702f51d093b6bbcb76610670555887e74616e0333a"

  bottle do
    cellar :any_skip_relocation
    sha256 "a41f83d7e1031da8378cde57ba69aa04c5e5beaff448ccd8a352e74ea7b9c409" => :catalina
    sha256 "52487932c00ad2ef6af36353a39b7c8441b34d4c33c848766a278aa7fe4f9399" => :mojave
    sha256 "52487932c00ad2ef6af36353a39b7c8441b34d4c33c848766a278aa7fe4f9399" => :high_sierra
    sha256 "0674ebcc5a30ec0980e5fd1498c15176805f1b0f78ee9f2f9fd3fd085f3e5625" => :sierra
  end

  depends_on "cmake" => :build
  depends_on "python"

  def install
    system "cmake", ".", "-DPYBIND11_TEST=OFF", *std_cmake_args
    system "make", "install"
  end

  test do
    (testpath/"example.cpp").write <<~EOS
      #include <pybind11/pybind11.h>

      int add(int i, int j) {
          return i + j;
      }
      namespace py = pybind11;
      PYBIND11_PLUGIN(example) {
          py::module m("example", "pybind11 example plugin");
          m.def("add", &add, "A function which adds two numbers");
          return m.ptr();
      }
    EOS

    (testpath/"example.py").write <<~EOS
      import example
      example.add(1,2)
    EOS

    python_flags = `python3-config --cflags --ldflags`.split(" ")
    system ENV.cxx, "-O3", "-shared", "-std=c++11", *python_flags, "example.cpp", "-o", "example.so"
    system "python3", "example.py"
  end
end