How to install Qt5 on Raspbian (Raspberry PI 3 Model B)

ssdroon30 · 30 Sept 2020, 18:34

Hello everyone!

How to compile and install the latest version of QT5 on Raspberry PI 3 Model B?
Do you know a good description?
I want to install all directories.
Do you think it fits on a 32GB SD card?

Thanks in advance for the answers!

SGaist · wrote on 30 Sept 2020, 18:32

Hi,

If you mean natively compile Qt on your Pi, then you can follow the same guides as for a desktop machine.

sierdzio · 10 Jan 2020, 05:57

@ssdroon30 said in How to install Qt5 on Raspbian (Raspberry PI 3 Model B):

Do you think it fits on a 32GB SD card?

Yes, Qt installation takes less than 1GB. That's for installed Qt, without all the build files and sources. If you do a cross-compilation or out-of-source native build you should be perfectly fine with 32GB SD card (or even smaller).

Do you know a good description?

Not a recent one, unfortunately. I haven't compiled Qt for RPi for about 2 years now.

This guide used to be good: link but I don't know if it still is. One side effect of both RPi and Qt constantly evolving is that things frequently break - and often after RPi update or Qt upgrade it takes some fixing and trial-and-error to get things to work again.

Current version of Raspberry Pi OS comes with Qt 5.11.3 pre-installed, by the way. If that's recent enough for you, perhaps it's a good idea to just go with that.

ssdroon30 · wrote on 1 Oct 2020, 02:17

Thanks! I don’t actually need all the librarys, especially the QTextToSpeech library. Can this library be compiled, and installed separately?

sierdzio · wrote on 1 Oct 2020, 06:02

If you have Qt configured you can later compile further modules, yes.