anchor.diff:      url = http://us.download.nvidia.com/XFree86/Linux-x86/100.14.11/NVIDIA-Linux-x86-100.14.11-pkg1.run;
       sha256 = "8665370e590328cc5bf3d13737739a80dacbfb6844436cab03c992e84bf16b0c";
     };
  -  versionNumber = "100.14.11"; 	         #important ! to also update this if the sources are updated, this is used as follows: extensions/libglx.so.$versionNumber
  +  inherit versionNumber;  
   
     kernelOutPath = kernel.outPath;
     xorgOutPath = xorg_server.outPath;
  
positive.code: 
    NIX_LDFLAGS = "-rpath ${libX11}/lib -rpath ${libXext}/lib";
    LD_LIBRARY_PATH = "${libX11}/lib:${libXext}/lib/";
  
  }
  
negative.code: 
  }:
  
  let 
  
    versionNumber = "100.14.11";  #important ! to also update this if the sources are updated, this is used as follows: extensions/libglx.so.$versionNumber
  
  in
  stdenv.mkDerivation {
    name = "nvidiaDrivers-" + versionNumber;
    builder = ./builder.sh;
    
    nvidiasrc = fetchurl {										#we cannot use $src since this variable is also used in the nvidia sources
  