参考：
Protocol Buffers - Google's data interchange format
Ubuntu 14.04 下 安装Protocol Buffers
环境
Ubuntu 14.04, 64bit.
依赖安装
$ sudo apt-get install autoconf automake libtool curl make g++ unzip
Install Protobuf
$ ./autogen.sh
$ ./configure
$ make
$ make check
============================================================================
Testsuite summary for Protocol Buffers 3.3.0
============================================================================
# TOTAL: 7
# PASS: 7
# SKIP: 0
# XFAIL: 0
# FAIL: 0
# XPASS: 0
# ERROR: 0
============================================================================
$ sudo make install
$ sudo ldconfig # refresh shared library cache.
2017.5.13