anchor.diff:      libspectre
       lzo
       mesa_noglu
  -    xorg.libX11
  -    xorg.libxcb
  +    libx11
  +    libxcb
       xorg.libXext
       xorg.libXrender
       xorg.pixman
  
positive.code:     "--disable-symbol-lookup"
      #"--enable-some-floating-point"
      "--with-x"
      #"--with-skia=yes"
      #"--with-skia-build-type=Release"
      "--without-gallium"
    ];
  
  
negative.code: , glib
  , libpng
  , libspectre
  , libx11
  , libxcb
  , lzo
  , mesa_noglu
  , xorg
  