./autogen.sh returns an error about metasyntactic HOT 4 OPEN

Fixed with "brew install libtool"

Now I am getting this as an error when doing the "make" command.

/Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolch
ain/usr/bin/../lib/c++/v1/ext/hash_map:209:2: warning: 
      Use of the header <ext/hash_map> is deprecated. Migrate to
      <unordered_map> [-W#warnings]
#warning Use of the header <ext/hash_map> is deprecated.  Migrate to <u...
 ^
In file included from google/protobuf/message.cc:36:
In file included from ./google/protobuf/stubs/hash.h:44:
/Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolch
ain/usr/bin/../lib/c++/v1/ext/hash_set:202:2: warning: 
      Use of the header <ext/hash_set> is deprecated. Migrate to
      <unordered_set> [-W#warnings]
#warning Use of the header <ext/hash_set> is deprecated.  Migrate to <u...
 ^
google/protobuf/message.cc:130:60: error: implicit instantiation of undefined
      template 'std::__1::basic_istream<char, std::__1::char_traits<char> >'
  return ParseFromZeroCopyStream(&zero_copy_input) && input->eof();
                                                           ^
/Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolch
ain/usr/bin/../lib/c++/v1/iosfwd:108:28: note: 
      template is declared here
    class _LIBCPP_TYPE_VIS basic_istream;
                           ^
google/protobuf/message.cc:135:67: error: implicit instantiation of undefined
      template 'std::__1::basic_istream<char, std::__1::char_traits<char> >'
  return ParsePartialFromZeroCopyStream(&zero_copy_input) && input->eof();
                                                                  ^
/Applications/Xcode5-DP3.app/Contents/Developer/Toolchains/XcodeDefault.xctoolch
ain/usr/bin/../lib/c++/v1/iosfwd:108:28: note: 
      template is declared here
    class _LIBCPP_TYPE_VIS basic_istream;
                           ^
2 warnings and 2 errors generated.

[deleted comment]

Solved by: https://code.google.com/p/protobuf/issues/detail?id=455

Basically added #include <istream> to the include list of message.cc in 
src/google/protobuff