anchor.diff:  }:
   
   stdenv.mkDerivation rec {
  -  name = "dovecot-2.3.9.3";
  +  name = "dovecot-2.3.10";
   
     nativeBuildInputs = [ perl pkgconfig ];
     buildInputs =
  
positive.code:     ++ lib.optional withSQLite "--with-sqlite";
  
    meta = {
      homepage = https://dovecot.org/;
      description = "Open source IMAP and POP3 email server written with security primarily in mind";
      maintainers = with stdenv.lib.maintainers; [ peti rickynils fpletz globin ];
      platforms = stdenv.lib.platforms.unix;
  
negative.code: 
    src = fetchurl {
      url = "https://dovecot.org/releases/2.3/${name}.tar.gz";
      sha256 = "1ibiz3k2flablkcqbkvfzsjnq5b5kxximhcrplflsjl57mr88ca7";
    };
  
    enableParallelBuilding = true;
  