anchor.diff:  nvidia_x11: sha256:
   
  -{ stdenv, lib, fetchurl, pkgconfig, m4, gtk2, gtk3, libXv, libvdpau
  +{ stdenv, lib, fetchurl, pkgconfig, m4, jansson, gtk2, gtk3, libXv, libXrandr, libvdpau
   , withGtk2 ? false, withGtk3 ? true
   }:
   
  
positive.code:   '';
  
    postFixup = ''
      patchelf --set-rpath "$(patchelf --print-rpath $out/bin/nvidia-settings):$out/lib:${nvidia_x11}/lib" \
        $out/bin/nvidia-settings
    '';
  
  
negative.code: 
    nativeBuildInputs = [ pkgconfig m4 ];
  
    buildInputs = [ jansson gtk2 gtk3 libXv libXrandr libvdpau nvidia_x11 ];
  
    NIX_LDFLAGS = [ "-lvdpau" "-lXrandr" "-lXv" "-lnvidia-ml" ];
  
    makeFlags = [ "NV_USE_BUNDLED_LIBJANSSON=0" ];
    installFlags = [ "PREFIX=$(out)" ];
  
    preBuild = ''
  