fctix-qt5 的源码有两个地方可以下载：
wget https://download.fcitx-im.org/fcitx-qt5/fcitx-qt5-1.0.5.tar.xztar -xJf fcitx-qt5-1.0.5.tar.xz git clone http://github.com/fcitx/fcitx-qt5.git
6、7、8行 根据自己的安装位置进行修改。
#!/bin/bash CMD_PATH=`dirname $0` userdir=`env | grep ^HOME= | cut -c 6-` qt5Creator=${userdir}/Qt5.9.0/Tools/QtCreator/lib/Qt/plugins/platforminputcontexts qt5gcc_64=${userdir}/Qt5.9.0/5.9/gcc_64/plugins/platforminputcontexts export Qt5_DIR=${userdir}/Qt5.9.0/5.9/gcc_64/lib/cmake/Qt5 sudo apt install git git clone http://github.com/fcitx/fcitx-qt5.git rm -r ~/fcitx-qt5/build mkdir ~/fcitx-qt5/build cd ~/fcitx-qt5/build sudo apt install gcc g++ cmake extra-cmake-modules sudo apt install libgl1-mesa-dev libglu1-mesa-dev libxkbcommon-dev fcitx-libs-dev cmake ../ make libfcix=~/fcitx-qt5/build/platforminputcontext/libfcitxplatforminputcontextplugin.so sudo cp $libfcix ${qt5Creator} sudo cp $libfcix ${qt5gcc_64} sudo chmod +x ${qt5Creator}/libfcitxplatforminputcontextplugin.so sudo chmod 777 ${qt5Creator}/libfcitxplatforminputcontextplugin.so sudo chmod +x ${qt5gcc_64}/libfcitxplatforminputcontextplugin.so sudo chmod 777 ${qt5gcc_64}/libfcitxplatforminputcontextplugin.so转载于:https://www.cnblogs.com/markleaf/p/7844775.html
相关资源：qt5虚拟键盘 QPlatformInputContext