![]() Update Qt source code (unless you just got it).These contain libraries, headers and pkg-config files we will need later. This will copy the specified directories from your Pi over the network into a directory called sysroot. Rsync -avzR :/usr/include :/usr/lib :/usr/share/pkgconfig/ :/opt/vc sysroot Get the (updated) sysroot from your Pi and make symlinks relative.Run these steps next or every time you want to update your Qt. You can read up on all available modules here and find out more about the tool with init-repository -help or here. Here we specify all essential modules and QtWebEngine to be downloaded. The “super-repo” by itself is tiny, and everything else is kept as git submodules. ![]() Init-repository is a convenience tool provided by Qt to fetch the source code of the specified modules. contain security patches for chromium earlier. When checking out a branch I prefer 5.15 over let’s say 5.15.0, because 5.15 will receive more/newer updates, and i.e. I prefer using the git repo over the qt-everywhere download because it is more modular and easier to update. init-repository -module-subset=essential,qtwebengine This is just a handy tool by someone on Github that we will need later to turn absolute symbolic links into relative ones. Feel free to always pick the newest one, it should work just fine as C++ is rather strict on backwards compatibility. is extremely outdated and uses gcc 4.8, so use one provided by linaro. Sudo chown 1000:1000 /opt/raspiToolchains ![]() Sudo apt-get install g++-multilib python pkg-config gperf bison flex libnss3-dev Mesa version of the graphics drivers, including headers. Sudo apt install libfontconfig1-dev libdbus-1-dev libnss3-dev libxkbcommon-dev libjpeg-dev libasound2-dev libudev-dev libgles2-mesa-dev The whole graphics driver situation is quite complicated, and I will try to explain it below, but first, my step-by-step guide: This is how I cross-compiled Qt 5.15 including QtWebEngine for a Raspberry Pi 3 utilizing the default Broadcom graphics libraries supplied by RaspiOS.
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