class Moc < Rscons::Builder
  def run(target, sources, cache, env, vars)
    command = %W[moc -o #{target} #{sources.first}]
    standard_build("Moc #{target}", target, command, sources, env, cache)
  end
end

Rscons::Environment.new do |env|
  env.add_builder(Moc.new)
  sources = Dir["src/*.cc"]
  env.build_dir("src", "build")
  Dir["src/**/*.h"].each do |h_file|
    moc_fname = env.get_build_fname(h_file, "_moc.cc")
    env.Moc(moc_fname, h_file)
    sources << moc_fname
  end
  env.parse_flags!("!pkg-config --cflags --libs Qt5Core Qt5Gui Qt5Widgets")
  env.parse_flags!("-fPIE")
  env.Program("app", sources)
end