require 'formula'

class Cmake < Formula
  url 'http://www.cmake.org/files/v2.8/cmake-2.8.8.tar.gz'
  md5 'ba74b22c788a0c8547976b880cd02b17'
  homepage 'http://www.cmake.org/'

  bottle do
    sha1 '8e00193226f3bb591c183e14094c7531318ddc6a' => :lion
    sha1 '4d25a7ca3f41750d957fe1cfd53ecb37c713efad' => :snowleopard
  end

  def patches
    # Correct FindPkgConfig found variable. Remove for CMake 2.8.9.
    "https://github.com/Kitware/CMake/commit/3ea850.patch"
  end

  def install
    # A framework-installed expat will be detected and mess things up.
    if File.exist? "/Library/Frameworks/expat.framework"
      opoo "/Library/Frameworks/expat.framework detected"
      puts <<-EOS.undent
        This will be picked up by CMake's build system and likey cause the
        build to fail, trying to link to a 32-bit version of expat.
        You may need to move this file out of the way for this brew to work.
      EOS
    end

    system "./bootstrap", "--prefix=#{prefix}",
                          "--system-libs",
                          "--no-system-libarchive",
                          "--datadir=/share/cmake",
                          "--docdir=/share/doc/cmake",
                          "--mandir=/share/man"
    system "make"
    system "make install"
  end

  def test
    system "#{bin}/cmake -E echo testing"
  end
end