anchor.diff:      "--enable-interpreter"
       "--disable-symbol-lookup"
       #"--enable-some-floating-point"
  -    "--with-x"
  +    "--${boolwt opengl-dummy.glx}-x"
       #(wtFlag "skia" true "yes")
       #(wtFlag "skia-build-type" true "Release")
       "--without-gallium"
  
positive.code: , libx11
  , libxcb
  , lzo
  , mesa_noglu
  , xorg
  , zlib
  
  
negative.code:     glib
      libpng
      libspectre
      libx11
      libxcb
      lzo
      opengl-dummy
      xorg.libXext
      xorg.libXrender
      xorg.pixman
  