QT5 RaspberryPI

This project builds QT5 and QT Webengine debian packages for the RaspberryPI.

Requirements

You will need a powerful - 4 CPU or higher recommended- Intel 64 bit computer with Debian Jessie. The additional software needed on the host will be installed by running ./host-bootstrap.py.

Build

Build is separated in two stages.

Cross compilation of QT5, webengine and cross compilation tools: buildall.sh cross, and native compilation of the core tools, for the RaspberryPI: buildall.sh native.

On completion, the pkgs directory will contain the Debian files to publish on the repository.

• libqt5all.deb
• libqtwebengine.deb
• libqt5all-dev.deb
• libqtwebengine-dev.deb
• libqt5-native-tools.deb
• libqt5-cross-tools.deb

Development

QT5 and Webenegine apps can be compiled using the packages above, in two different ways: native or cross compiled.

Native compilation

You will need a RaspberryPI or a Rasbian based sysroot. Install the -dev packages on the sysroot along with native tools package. Set your PATH to point to /usr/local/qt5/bin. You are now ready to build.

Cross compilation

You will need a Debian Jessie x64 system and a Rasbian based sysroot. Run the command host-bootstrap on the host. Mount the sysroot image and install the -dev packages in it along with the cross tools package. Set your PATH on the Host to reach qmake:

$ export PATH=$PATH:$(xsysroot -q sysroot)/usr/local/qt5/bin-x86-64`

You might need to set the correct path to the sysroot in the file /usr/local/qt5/bin-x86-64/qt.conf

You are now ready to cross build QT5 apps from the host.

References

• https://github.com/CalumJEadie/part-ii-individual-project-dev/wiki/Project-Proposal-Research
• https://wiki.qt.io/Building_Qt_5_from_Git
• http://doc.qt.io/qt-5/embedded-linux.html#configuring-for-a-specific-device
• http://wiki.qt.io/RaspberryPi2EGLFS
• https://code.qt.io/cgit/qt
• https://github.com/raspberrypi/tools.git
• https://www.raspberrypi.org/documentation/linux/kernel/building.md
• https://www.raspberrypi.org/blog/qt5-and-the-raspberry-pi/
• http://www.ics.com/blog/building-qt-and-qtwayland-raspberry-pi
• http://www.intestinate.com/pilfs/beyond.html#wayland
• https://wiki.merproject.org/wiki/Community_Workspace/RaspberryPi
• https://github.com/jorgen/yat
• https://www.youtube.com/watch?v=AtYmJaqxuL4
• https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=qpi2
• https://github.com/qtproject/qtwayland
• http://www.chaosreigns.com/wayland/weston/
• https://info-beamer.com/blog/raspberry-pi-hardware-video-scaler
• https://forum.qt.io/topic/48223/webengine-raspberry-pi/2

Albert Casals - 2016-2017