学步园

升级mac 10.8到10.9后protobuf-objc编译不成功，报错信息如下：

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/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/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/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/iosfwd:108:28: note: template is declared here
    class _LIBCPP_TYPE_VIS basic_istream;

在网上查了很久，大概原因是编译器弄错了，在源码message.cc中加上包含如下头文件的声明：

#include <istream>

然后再重新配置和编译就好了。

参考：

http://code.google.com/p/metasyntactic/issues/detail?id=144&q=implicit%20instantiation%20of%20undefined

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