anchor.diff:  }:
   
   let
  -  version = "4.10.0-104";
  +  version = "4.11.0-103";
   
     urls' = arch: [
       "http://www.mellanox.com/downloads/MFT/mft-${version}-${arch}.tgz"
  
positive.code:   sources = {
      "x86_64-linux" = {
        urls = urls' "x86_64-deb";
        md5Confirm = "39a4f6ef72c1ce94fec5ce112fd52d40";
        sha256 = "f20ce197b448cfad0275e1f7e18fa09b418804b0172d7698f843cb5382ac8dd5";
      };
    };
  
  
negative.code: 
    buildPhase = optionalString (kernel == null) ''
      ar vx DEBS/${name}*
      tar xf data.tar.*
  
      rm usr/bin/mst
      mv etc/init.d/mst usr/bin
  