Hi,
It seems I need gprbuild to use OpenGLAda.
Where I find it for OpenSUSE Leap 4.1 ?
https://software.opensuse.org/package/gprbuild?search_term=gprbuild
Builds are available for both TW and 13.1 (actually recent TW builds have failed).
Source is from 2012, so is not very recent
My guess is that for this type of package the 13.1 build probably works, but you can try either.
Ordinarily I wouldn’t recommend installing packages from a different repo, but in this case I’d say it’s not a huge risk.
It’s a private repo but since it’s obviously not being updated, I wouldn’t recommend remaining subscribed to the repo.
I took a further look at gprbuild availability,
And it looks like although Adacore has promised to “modernize” (http://blog.adacore.com/modernizing-adacores-open-source), so far gprbuild as of today is not part of this (http://blog.adacore.com/modernizing-adacores-open-source).
So, the only current available source is heavily dependent on Debian packages and indeed… There are only Debian packages.
So, I wouldn’t recommend trying to compile a more recent version of gprbuild but if you want to try their most recent (2014) package, you can try to use the openSUSE “alien” package to extract and run it.
TSU
My real issue is to use OpenGL from Ada and I found the binding “OpenGLAda” here: https://flyx.github.io/OpenGLAda/
I now use OpenSUSE Leap 4.1.
I downloaded the file OpenGLAda-master.zip via this address, unpacked and
and when trying to compile/link the test programs (“make tests”) I runned into:
make: gprbuild: Command not found
Could it be it is better to invest time in using Globe3D ?
Do you have your make and compiler tools installed?
TSU
I have gnu ada etc under OpenSUSE Leap 42.1
Actually I have used Ada/OpenGL here:
http://journal.frontiersin.org/article/10.3389/fbioe.2015.00166/abstract
So I think I have some experience 
But I am curious about OpenGLAda…