class GtkVnc < Formula
  desc "VNC viewer widget for GTK"
  homepage "https://wiki.gnome.org/Projects/gtk-vnc"
  url "https://download.gnome.org/sources/gtk-vnc/0.7/gtk-vnc-0.7.2.tar.xz"
  sha256 "f893f32b1ef6d09dd23cda39b8a2567be7c2aebda58026288e1362f042e20808"

  bottle do
    sha256 "caa4703d05d6f5413fc661e327ede0dff09ce603d32510e8e2c410a4105e65c4" => :high_sierra
    sha256 "fe4d1d434b8e3b784d886ce07d82f5c049916b8e67e28e34c9f56779d0c9b943" => :sierra
    sha256 "a6fea29893a63c9df2866c962dcef68ce6d4e5e3f7034f99350e6c3b7ca030a6" => :el_capitan
  end

  # Fails with Xcode 7.1 or older
  # error: use of undeclared identifier 'MAP_ANONYMOUS'
  # Upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=602371
  depends_on :macos => :yosemite

  depends_on "gettext" => :build
  depends_on "gobject-introspection" => :build
  depends_on "intltool" => :build
  depends_on "libtool" => :build
  depends_on "pkg-config" => :build
  depends_on "gnutls"
  depends_on "gtk+3"
  depends_on "libgcrypt"
  depends_on "pulseaudio" => :optional
  depends_on "vala" => :optional

  def install
    args = %W[
      --prefix=#{prefix}
      --with-gtk=3.0
      --with-examples
      --without-python
      --enable-introspection
    ]

    args << "--enable-pulseaudio" if build.with? "pulseaudio"
    if build.with? "vala"
      args << "--enable-vala"
    else
      args << "--disable-vala"
    end

    # fix "The deprecated ucontext routines require _XOPEN_SOURCE to be defined"
    ENV.append "CPPFLAGS", "-D_XOPEN_SOURCE=600"
    # for MAP_ANON
    ENV.append "CPPFLAGS", "-D_DARWIN_C_SOURCE"

    system "./configure", *args

    system "make"
    system "make", "install"
  end

  test do
    system "#{bin}/gvncviewer", "--help-all"
  end
end