anchor.diff:    ];
   
     buildInputs = [
  -    dri2proto
  -    dri3proto
       expat
  -    glproto
       libdrm
       libx11
       libxcb
  
positive.code:     xorg.libXxf86vm
      wayland
      wayland-protocols
      zlib
    ] ++ optionals (buildConfig != "opengl-dummy") [
      elfutils
  
negative.code: , wayland
  , wayland-protocols
  , xorg
  , xorgproto
  , zlib
  
  , buildConfig
  