anchor.diff:      urls = map (n: "${n}/LVM2.${version}.tgz") baseUrls;
       multihash = "QmNoaxzkpjDpjb95efvtNqcVApcyZjrpKC8WXfxQmfU9zQ";
       hashOutput = false;
  -    sha512 = "801adcc2ae483f81edf6bfba73090b6b8f710370e48764f08a62da71d617157075bea01593c2535ad5ba71dcb5e0cfe83cec9a65180a6e8b9e0d214bdee79883";
  +    sha512 = "402612667f279be5f1c682b9037022788e9b76e3157907a0832e8b7847c3aa96e4b44a3bd880657a7e577ab46db0e4f283ac6edbb52502e365617633c802ae40";
     };
   
     buildInputs = [
  +    libselinux
  +    libsepol
       readline
       thin-provisioning-tools
       systemd_lib
  
positive.code:     "ftp://sources.redhat.com/pub/lvm2/releases"
    ];
  
    version = "2.02.171";
  in
  stdenv.mkDerivation rec {
    name = "lvm2-${version}";
  
negative.code: , fetchurl
  
  , coreutils
  , libselinux
  , libsepol
  , readline
  , systemd_lib
  , thin-provisioning-tools
  