交叉编译树莓派3的QtModules

Question

I need to cross compile QSerialPort module and QtChart Module for the pi cm3 on Ubuntu x64, after having successfully compiled qtbase following the https://wiki.qt.io/RaspberryPi2EGLFS#Step_by_step guide.

In the same guide is told to compile other modules in the following way:

git clone git://code.qt.io/qt/<qt-module>.git -b <qt-version>
cd <qt-module>

~/raspi/qt5/bin/qmake -r
make
make install

I tried that method with

git clone git://code.qt.io/qt/qtserialport.git
cd qtserialPort

but doing

~/raspi/qt5/bin/qmake -r

i get the error

Project MESSAGE: cmake executable not found. Not running CMake unit tests

How to fix the error?

Answer 1

Looking into this file in the QtSerialPort repository, it seems like there is some kind of integration with CMake's CTest framework. Hence, to get rid of the message, I guess you could try to install CMake:

sudo apt-get install cmake

However, I am not sure if this actually is an error (as it says Project MESSAGE - it might just be informational and safe to ignore).