optional_depends "giflib"    "--with-gif"             "--without-gif"  "for gif support if you use faces"
optional_depends "%JPEG"     "--with-jpeg"            "--without-jpeg" "for jpeg support if you use faces"
optional_depends "tiff"      "--with-tiff"            "--without-tiff" "for tiff support if you use faces"
optional_depends "libpng"    "--with-png"             "--without-png"  "for png support if you use faces"
optional_depends "librsvg"   "--with-rsvg"            "--without-rsvg" "for SVG image support"
optional_depends "%X"        "--with-x --with-xpm"    "--without-xpm"  "for xpm support if you use faces"
optional_depends "openMotif" "--with-x-toolkit=motif" ""               "for OSF/Motif standard GUI"
optional_depends "gtk+-2"    "--with-x-toolkit=gtk"   ""               "for gtk+ support GUI"
optional_depends "libXft"    "--with-xft"             "--without-xft"  "for anti alias font support"
optional_depends "dbus"      "--with-dbus"            "--without-dbus" "for D-BUS support"
