optional_depends "libXext"     ""               "--without-x"          "for X11 support"
optional_depends "libXt"       ""               "--without-x"          "for X11 support"
optional_depends "perl"        "--with-perl"    "--without-perl"       "for PerlMagick support"
optional_depends "bzip2"       ""               "--without-bzlib"      "for BZLIB support"
optional_depends "zlib"        ""               "--without-zlib"       "for ZLIB support"
optional_depends "djvulibre"   "--with-djvu"    "--without-djvu"       "for additional image and documents support"
optional_depends "libfpx"      ""               "--without-fpx"        "for FlashPIX image support"
optional_depends "fontconfig"  ""               "--without-fontconfig" "for fontconfig support"
optional_depends "freetype2"   ""               "--without-freetype"   "for freetype2 support"
optional_depends "ghostscript" "--with-gslib"   "--without-gslib"      "for ghostscript support"
optional_depends "jbigkit"     "--with-jbig"    "--without-jbig"       "for JBIG graphics support"
optional_depends "%JPEG"       ""               "--without-jpeg"       "for JPEG support"
optional_depends "jasper"      ""               "--without-jp2"        "for JPEG-2000 support"
optional_depends "lcms"        ""               "--without-lcms"       "for lcms (v1.1X) support"
optional_depends "lcms2"       ""               "--without-lcms2"      "for lcms (v2.X) support"
optional_depends "liblqr"      "--with-lqr"     "--without-lqr"        "for Liquid Rescale support"
optional_depends "xz"          ""               "--without-lzma"       "for LZMA support"
optional_depends "openexr"     "--with-openexr" "--without-openexr"    "for OpenEXR high dynamic-range support"
optional_depends "libpng"      ""               "--without-png"        "for PNG support"
optional_depends "librsvg"     "--with-rsvg"    "--without-rsvg"       "for RSVG graphics support"
optional_depends "tiff"        "--with-tiff"    "--without-tiff"       "for TIFF image support"
optional_depends "libwmf"      "--with-wmf"     "--without-wmf"        "for Windows Metafile support"
optional_depends "libxml2"     ""               "--without-xml"        "for XML support"
optional_depends "libwebp"     "--with-webp"    "--without-webp"       "for WebP image format support"
optional_depends "graphviz"    "--with-gvc"     "--without-gvc"        "for Graphviz support"
optional_depends "libXpm"      ""               ""                     "store color icons"
optional_depends "ufraw"       ""               ""                     "for raw image support"
optional_depends "xdg-utils"   ""               ""                     "for xdg-open delegate program support"
optional_depends "hp2xx"       ""               ""                     "for HP-GL plotter data delegate program support"

optional_depends "dejavu-ttf"  "--with-dejavu-font-dir=/usr/share/fonts/dejavu-ttf" \
                               "" "for dejavu font support"

