anchor.diff:    depsBuildBuild = [ buildPackages.stdenv.cc ];
   
     nativeBuildInputs = [ pkg-config ];
  -  buildInputs = [ pcre pcre.dev libxml2 zlib bzip2 which file openssl ]
  +  buildInputs = [ pcre2 pcre2.dev libxml2 zlib bzip2 which file openssl ]
                ++ lib.optional enableDbi libdbi
                ++ lib.optional enableMagnet lua5_1
                ++ lib.optional enableMysql libmysqlclient
  
positive.code: { lib, stdenv, buildPackages, fetchurl, pkg-config, pcre, libxml2, zlib, bzip2, which, file
  , openssl
  , enableDbi ? false, libdbi
  , enableMagnet ? false, lua5_1
  
negative.code:                 ++ lib.optional enableExtendedAttrs "--with-attr";
  
    preConfigure = ''
      export PATH=$PATH:${pcre2.dev}/bin
      sed -i "s:/usr/bin/file:${file}/bin/file:g" configure
    '';
  
  