Dependency:
sudo apt-get install cmake build-essential opencc mercurial ibus
Install libgooglepinyin Library:
hg clone http://code.google.com/p/libgooglepinyin/ cd libgooglepinyin mkdir build; cd build cmake .. -DCMAKE_INSTALL_PREFIX=/usr make sudo make install
Install ibus-googlepinyin:
hg clone http://code.google.com/p/libgooglepinyin.ibus-wrapper/ ibus-googlepinyin cd ibus-googlepinyin mkdir build; cd build cmake .. -DCMAKE_INSTALL_PREFIX=/usr make sudo make install
Upgrade：
In libgooglepinyin :
hg pull --time hg up -C cd build cmake .. -DCMAKE_INSTALL_PREFIX=/usr make sudo make install
Restart ibus