LINUX下编译安装PROTOBUF

下载protobuf-2.5.0.tar.gz：
http://protobuf.googlecode.com/files/protobuf-2.5.0.tar.gz
安装：
tar zxvf protobuf-2.4.1.tar.gz
cd protobuf-2.4.1
./configure
make
make check
make install
安装结束。
验证：
查看是否安装成功：protoc --version
如果出现：libprotoc 2.5.0 则说明安装成功！
如果出现错误：protoc: error while loading shared libraries: libprotobuf.so.0: cannot open hared object file: No such file or directory

原因是：The issue is that Ubuntu 8.04 doesn't include /usr/local/lib in library paths.

解决办法:To fix it for your current terminal session, just type in
执行:export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib