anchor.diff:  assert mountPath != "";
   
   let
  -  version = "v0.4.2";
  +  version = "0.5";
     git = https://github.com/LemonBoy/ldm.git;
   in
   stdenv.mkDerivation rec {
  
positive.code:   # contains important fixes for LVM setups.
    src = fetchgit {
      url = meta.repositories.git;
      rev = "refs/tags/${version}";
      sha256 = "1fdm3l00csjyvz40py6wlsh8s441rbp4az3sc2i14ag7srh2yim8";
    };
  
    buildInputs = [ udev utillinux ];
  
negative.code:     substituteInPlace ldm.c \
        --replace "/mnt/" "${mountPath}"
    '';
  
    buildPhase = "make ldm";
  
    installPhase = ''
      mkdir -p $out/bin
  