class GraphicsmagickCustom < Formula
    desc "Image processing tools collection"
    homepage "http://www.graphicsmagick.org/"
    url "https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick/1.3.24/GraphicsMagick-1.3.24.tar.bz2"
    sha256 "b060a4076308f93c25d52c903ad9a07e71b402dcb2a5c62356384865c129dff2"

    head "http://hg.code.sf.net/p/graphicsmagick/code", :using => :hg

    option "with-quantum-depth-8", "Compile with a quantum depth of 8 bit"
    option "with-quantum-depth-16", "Compile with a quantum depth of 16 bit (default)"
    option "with-quantum-depth-32", "Compile with a quantum depth of 32 bit"
    option "without-magick-plus-plus", "disable build/install of Magick++"
    option "without-svg", "Compile without svg support"
    option "with-perl", "Build PerlMagick; provides the Graphics::Magick module"

    depends_on "libtool" => :run

    depends_on "pkg-config" => :build

    depends_on "jpeg" => :recommended
    depends_on "libpng" => :recommended
    depends_on "libtiff" => :recommended
    depends_on "freetype" => :recommended

    depends_on :x11 => :optional
    depends_on "little-cms2" => :optional
    depends_on "jasper" => :optional
    depends_on "libwmf" => :optional
    depends_on "ghostscript" => :optional
    depends_on "webp" => :optional

    fails_with :llvm do
        build 2335
    end

    skip_clean :la

    def ghostscript_fonts?
        File.directory? "#{HOMEBREW_PREFIX}/share/ghostscript/fonts"
    end

    def install
        quantum_depth = [8, 16, 32].select { |n| build.with? "quantum-depth-#{n}" }
        if quantum_depth.length > 1
            odie "graphicsmagick: --with-quantum-depth-N options are mutually exclusive"
        end
        quantum_depth = quantum_depth.first || 16 # user choice or default

        args = %W[
            --prefix=#{prefix}
            --disable-dependency-tracking
            --disable-shared
            --disable-installed
            --enable-broken-coders
            --with-modules
            --with-quantum-depth=#{quantum_depth}
        ]

        args << "--without-gslib" if build.without? "ghostscript"
        args << "--without-magick-plus-plus" if build.without? "magick-plus-plus"
        args << "--with-perl" if build.with? "perl"
        args << "--with-webp=yes" if build.with? "webp"
        args << "--without-x" if build.without? "x11"
        args << "--without-ttf" if build.without? "freetype"
        args << "--without-xml" if build.without? "svg"
        args << "--without-lcms2" if build.without? "little-cms2"

        # versioned stuff in main tree is pointless for us
        inreplace "configure", "${PACKAGE_NAME}-${PACKAGE_VERSION}", "${PACKAGE_NAME}"
        system "./configure", *args
        system "make", "install"
        if build.with? "perl"
            cd "PerlMagick" do
                # Install the module under the GraphicsMagick prefix
                system "perl", "Makefile.PL", "INSTALL_BASE=#{prefix}"
                system "make"
                system "make", "install"
            end
        end
    end

    def caveats
        if build.with? "perl"
            <<-EOS.undent
            The Graphics::Magick perl module has been installed under:

            #{lib}

            EOS
        end
    end

    test do
        system "#{bin}/gm", "identify", test_fixtures("test.png")
    end
end