install protobuf 2.3.0 on mac os (10.10 in my case)

gistfile1.txt

To install protobuf 2.3.0 in mac os (10.10) you need to do folowing:
install mac os developer tools

download and extract protobuf 2.3.0 : https://code.google.com/p/protobuf/downloads/list
open src/google/protobuf/message.h
and change lines to (see https://code.google.com/p/protobuf/issues/detail?id=570 and http://alfredgamulo.com/problem-installing-protobuf-2-3-0-on-mac/ if you want)


#ifdef __DECCXX
// HP C++'s iosfwd doesn't work.
#include <iostream>
#else
#include <sstream>
//#include <iosfwd>
#endif


and then run:
make clean (if you try to make before)
./configure
./make
!! ./make check will fail, don’t worry about
sudo make install
protoc —version

Thanks so much!
It works!
10.12 in my case

Before you do
$ ./configure
$ make

you should go to https://github.com/google/protobuf/blob/master/src/README.md and follow there an instruction for Mac users:

Note for Mac users
For a Mac system, Unix tools are not available by default. You will first need to install Xcode from the Mac AppStore and then run the following command from a terminal:

$ sudo xcode-select --install

To install Unix tools, you can install "port" following the instructions at https://www.macports.org . This will reside in /opt/local/bin/port for most Mac installations.

$ sudo /opt/local/bin/port install autoconf automake libtool

Then follow the Unix instructions above.

---