下載protobuf-2.4.1.tar.gz：
http://protobuf.googlecode.com/files/protobuf-2.4.1.tar.gz安裝：
tar zxvf protobuf-2.4.1.tar.gz
cd protobuf-2.4.1
./configure
make
make check
make install
安裝結束。
驗證：
查看是否安裝成功：protoc --version
如果出現(xiàn)：libprotoc 2.4.1 則說明安裝成功！
如果出現(xiàn)錯誤：
protoc: error while loading shared libraries: libprotobuf.so.0: cannot open |
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shared object file: No such file or directory |
The issue is that Ubuntu 8.04 doesn't include /usr/local/lib in |
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To fix it for your current terminal session, just type in |
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib |