anchor.diff:      nativeBuildInputs = [ pkgs.pkgconfig ];
     };
   
  -  yaml20 = assert isPhp7; buildPecl {
  -    name = "yaml-2.0.2";
  -
  -    sha256 = "0f80zy79kyy4hn6iigpgfkwppwldjfj5g7s4gddklv3vskdb1by3";
  -
  -    configureFlags = [
  -      "--with-yaml=${pkgs.libyaml}"
  -    ];
  -
  -    nativeBuildInputs = [ pkgs.pkgconfig ];
  -  };
  -
  -  # Since PHP 5.5 OPcache is integrated in the core and has to be enabled via --enable-opcache during compilation.
  -  zendopcache = assert isPhpOlder55; buildPecl {
  -    name = "zendopcache-7.0.3";
  -
  -    sha256 = "0qpfbkfy4wlnsfq4vc4q5wvaia83l89ky33s08gqrcfp3p1adn88";
  -  };
  -
     zmq = buildPecl {
       name = "zmq-1.1.3";
   
  
positive.code:     buildInputs = [ pkgs.pcre ];
    };
  
    # No support for PHP 7 yet
    memcache = assert !isPhp7; buildPecl {
      name = "memcache-3.0.8";
  
      sha256 = "04c35rj0cvq5ygn2jgmyvqcb0k8d03v4k642b6i37zgv7x15pbic";
  
      configureFlags = [ "--with-zlib-dir=${pkgs.zlib.dev}" ];
  
      makeFlags = [ "CFLAGS=-fgnu89-inline" ];
    };
  
    memcached = if isPhp7 then memcachedPhp7 else memcached22;
  
    memcached22 = assert !isPhp7; buildPecl {
      name = "memcached-2.2.0";
  
      sha256 = "0n4z2mp4rvrbmxq079zdsrhjxjkmhz6mzi7mlcipz02cdl7n1f8p";
  
      configureFlags = [
        "--with-zlib-dir=${pkgs.zlib.dev}"
        "--with-libmemcached-dir=${pkgs.libmemcached}"
      ];
  
      nativeBuildInputs = [ pkgs.pkgconfig ];
      buildInputs = with pkgs; [ cyrus_sasl zlib ];
    };
  
    # Not released yet
    memcachedPhp7 = assert isPhp7; buildPecl rec {
      name = "memcached-php7";
  
      src = fetchgit {
  
negative.code:       inherit php;
        inherit (pkgs) stdenv autoreconfHook fetchurl;
      };
  
    apcu = buildPecl {
      name = "apcu-5.1.11";
      sha256 = "0nz9m3fbxgyc2ij63yqmxm06a1f51g8rkxk85f85ziqdin66q2f1";
      buildInputs = [ pkgs.pcre ];
  