colamd.rb

require "formula"

class Colamd < Formula
  homepage "http://www.cise.ufl.edu/research/sparse/colamd/"
  url "http://www.cise.ufl.edu/research/sparse/colamd/COLAMD-2.8.0.tar.gz"
  sha1 "007bc46337dd27102fece0d4e81a9bc9db0d0a67"

  depends_on "suite-sparse-config"

  def suite_sparse_config_options
    Tab.for_formula(Formula["suite-sparse-config"]).used_options
  end

  def install
    make_args = ["INSTALL_LIB=#{lib}", "INSTALL_INCLUDE=#{include}"]
    suite_sparse_config_options.each do |opt|
      make_args << opt.to_s
    end

    ln_s Formula["suite-sparse-config"].libexec, "../SuiteSparse_config"
    system "make", "all", *make_args
    system "make", "demos", *make_args
    lib.mkpath
    include.mkpath
    system "make", "install", *make_args
    (share / name / "demo").install Dir["Demo/*[^.o]"]
  end

  test do
    system "#{share}/#{name}/demo/colamd_example > #{share}/#{name}/demo/my_colamd_example.out"
    test1 = %x(diff #{share}/#{name}/demo/my_colamd_example.out #{share}/#{name}/demo/colamd_example.out).empty? ? true : false
    system "#{share}/#{name}/demo/colamd_l_example > #{share}/#{name}/demo/my_colamd_l_example.out"
    test2 = %x(diff #{share}/#{name}/demo/my_colamd_l_example.out #{share}/#{name}/demo/colamd_l_example.out).empty? ? true : false
    test1 and test2
  end
end

suite-sparse-config.rb

require 'formula'

class SuiteSparseConfig < Formula
  homepage 'http://www.cise.ufl.edu/research/sparse/SuiteSparse'
  url 'http://www.cise.ufl.edu/research/sparse/SuiteSparse_config/SuiteSparse_config-4.2.1.tar.gz'
  sha1 '1d6f70ec7ecdb7b60e6a76c59f1f98fb94e7e4d3'

  depends_on "tbb" => :recommended
  depends_on "openblas" => :optional
  depends_on "metis4" => :optional

  def install
    # Switch to the Mac base config, per SuiteSparse README.txt
    system "mv SuiteSparse_config.mk SuiteSparse_config_orig.mk"
    system "mv SuiteSparse_config_Mac.mk SuiteSparse_config.mk"

    make_args = ["INSTALL_LIB=#{libexec}", "INSTALL_INCLUDE=#{libexec}"]
    make_args << "BLAS=" + ((build.with? 'openblas') ? "-L#{Formula['openblas'].lib} -lopenblas" : "-framework Accelerate")
    make_args << "LAPACK=$(BLAS)"
    make_args += ["SPQR_CONFIG=-DHAVE_TBB", "TBB=-L#{Formula['tbb'].lib} -ltbb"] if build.with? "tbb"
    make_args += ["METIS_PATH=", "METIS=-L#{Formula['metis'].lib} -lmetis"] if build.with? "metis4"

    system "make", "all", *make_args

    libexec.mkpath
    lib.mkpath
    include.mkpath
    system "make", "install", *make_args

    libexec.install "SuiteSparse_config.mk"
    include.install_symlink libexec / "SuiteSparse_config.h"
    lib.install_symlink libexec / "libsuitesparseconfig.a"
  end
end