anchor.diff:    };
   
     buildInputs = [ perlPackages.perl ];
  -  nativeBuildInputs = [ makeWrapper ];
  +  nativeBuildInputs = [ makeWrapper installShellFiles ];
   
     preBuild = ''
       # Fixes failing build when not building in git repo
  
positive.code: { lib, stdenv, fetchFromGitHub, makeWrapper, perlPackages }:
  
  stdenv.mkDerivation rec {
    pname = "sieve-connect";
  
negative.code:   buildFlags = [ "PERL5LIB=${perlPackages.makePerlPath [ perlPackages.FileSlurp ]}" "bin" "man" ];
  
    installPhase = ''
      mkdir -p $out/bin
      install -m 755 sieve-connect $out/bin
      installManPage sieve-connect.1
  
      wrapProgram $out/bin/sieve-connect \
        --prefix PERL5LIB : "${with perlPackages; makePerlPath [
  