How to specify system requirements for r-universe builds

[pepijn-devries]

Currently, I'm working on a package that uses static libraries:

https://github.com/pepijn-devries/openmpt

Therefore, it has system requirements ensuring that the libraries are available on the machine it runs on. I've included the requirements here:

https://github.com/rstudio/r-system-requirements

This will ensure that the rhub workflow on github will succefully build the package on Linux machines. However, when setting the package up for r-universe, the build fails (https://pepijn-devries.r-universe.dev/builds). This is because the system requirements are not installed.

Does anyone have know how to set this up correctly?

Many thanks for your help!

[jeroen]

It is explained here: https://docs.r-universe.dev/publish/debug-build.html#how-to-request-additional-third-party-system-requirements

If it is in r-system-requirements it should work. I'll have a look.

[jeroen]

Hmm if I run remotes::system_requirements('ubuntu-22.04') inside your package dir, the sysdep does not show up. Are you sure the regex matches?

[jeroen]

I'm going to try to switch to pak for installing sysreqs:

pak::pkg_sysreqs('.', sysreqs_platform='ubuntu-24.04')$install_script

[pepijn-devries]

Thanks, that does look promising...

[pepijn-devries]

It did help a bit. The source package is now built at r-universe, but the binary for Linux is not. This too is because of the missing system requirements

[jeroen]

Yes I know, need to fix this in several places...

[pepijn-devries]

Ah OK. I was too fast to test ;). Thanks again.

[jeroen]

It should work now, I switched the system dependency resolver to pak: r-universe-org/build-source@1554177

However this is still tentative because we had some troubles in the past with pak hanging, so if that happens again we may need to find another solution.

[pepijn-devries]

Thanks! In this case it seems to work for now!

[jeroen]

Ugh we may have to revert, pak is hanging again https://github.com/r-universe/adafede/actions/runs/11686437398/job/32542209386

[pepijn-devries]

OK. I thought learning to use static libraries in R would be fun 😆. At least I'm learning a lot 😌...

[jeroen]

Trying this workaround r-universe-org/build-source@d2a1418