That was very helpful @awiuoy
Thanks to you, I was able to start the package.mk building process with:
user@ubuntu:~/LibreELEC.tv# PROJECT=RPi2 ARCH=arm scripts/build addon.package.name
Could you please give some info for unexperienced users like me:
1. The building process takes half a day on my machine (currently trouble shooting, as it aborts always), just for one addon. Is this always the case?
2. Is there some possibility to accelerate it somehow? I mean, the addon itself is usually less than 200kb of final size. But executing the ssh line above seems to start an entire build process of an image for the raspberry pi
3. As I had no success so far (and it takes many many hours until I encounter the next error message)... what is the outcome finally? Where do I find the addon.zip that I can pull out to install it then on my LE clients?
4. Is the addon packed into a zip at all, or am I doing something pointless here? Or is it just one more code line that I have to do, to make an addon.zip finally? For this, I still don't know where the destination directory of the compiled addon will be then.
I hope you can answer some of the questions, as I'm totally new to this and worried that I waste my time waiting 6 to 12 hours of compiling over and over again until I have finally sorted out all error messages, just to realize that PROJECT=RPi2 ARCH=arm scripts/build addon.package.name was the wrong aproach in the first place
The thing is that I just want to have an addon.zip and not an entire raspberry pi LibreELEC image (which I could write to an sd card then). I would like to rely on the official LE releases for this, though I'd like to play around with the selfcompiled addon.