depends pkgconf

optional_depends mesa-lib     "--enable-mesa"     "--disable-mesa"     "for OpenGL (selected with previous drivers)"
optional_depends giflib       "--enable-gif"      "--disable-gif"      "for GIF image provider (recommended)"
optional_depends %JPEG        "--enable-jpeg"     "--disable-jpeg"     "for JPEG image provider (recommended)"
optional_depends libpng       "--enable-png"      "--disable-png"      "for PNG image provider (recommended)"
optional_depends SDL          "--enable-sdl"      "--disable-sdl"      "for SDL support"
optional_depends freetype2    "--enable-freetype" "--disable-freetype" "for freetype font provider (recommended)"
optional_depends zlib         "--enable-zlib"     "--disable-zlib"     "for zlib compression support (e.g. for screen shots)"
optional_depends libX11       "--enable-x11"      "--disable-x11"      "for X11 support"
optional_depends libvncserver "--enable-vnc"      "--disable-vnc"      "for VNC support"
