Hi All,
I tried to build LXQt 0.7.0 from source in official download link [1] with compilation instructions in LxDE Wiki [2]. There are some missing components in the download link. I had to downloaded them from git one by one. The missing components are listed below:
Among those packages, lxinput-qt is not in the official git server [3]. I had to search it on Internet and clone it from PCMan's personal git-hub repository [4]. I could not get it compiled at that time either.

ps:
[1] http://lxqt.org/downloads/lxqt/0.7.0/
[2] http://wiki.lxde.org/en/Build_LXDE-Qt_From_Source
[3] https://github.com/lxde
[4] https://github.com/PCMan/lxinput-qt
[5] My compilation environment is Debian sid release. Currently I can compile and install LXQt with 0.7.0 tarballs mixed with source code from git except lxinput-qt.

Best regards,
Wen