How to create an installer from the Lilypond build tree?

[Engraver]

Hallo all,

I have a (rooted) Android tablet, on which I run Linux Debian by means of 
an app called Linux Deploy. The debian repositories for the ARMv7 (or 
armhf) chipset only contain Lilypond 2.18.2. That served me well for quite 
some time. However, the Edition Engraver requires at least Lilypond 
2.19.xx, so I decided to try and build Lilypond on my tablet. I cloned the 
Lilypond source code and after several hours of painstakingly apt-getting 
al required dependecies (and googling for the correct packages names, since 
they're not always self-evident) the build process succeeded.
So I have now a Lilypond version 2.21.0 suitable for the armhf architecture.
Installing it was as simple as typing 'make install'. What I'd like to 
know: is there a way to create an installer, so that I can run that when 
something goes wrong with my current Linux installation? And of course, if 
someone is interested in a recent Lilypond build for armhf (though I 
suspect the possible user base is quite small...), I'd love to share it. 
That is, if there is a way to create an installer; it's not practical to 
zip/tar the build-tree and share that.

Regards,
Auke