Tested with updated XALT easyconfig from easybuilders/easybuild-easyconfigs#22299 on top of:

• correctly deal with easyblocks that still use deprecated make_module_req_guess method: remove environment variables if they're not present in guesses easybuild-framework#4763

I had to use eb --disable-rpath for this, because XALT copies over OS libraries like libpthread.so.1 (which is provided by glibc) into its installation. Fixing that would require using patchelf in the easyconfig.

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS XALT-3.1.1.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3561.doduo.os - Linux RHEL 8.8, x86_64, AMD EPYC 7552 48-Core Processor (zen2), Python 3.6.8
See https://gist.github.com/boegel/a86e6ba4433e41483c5a042bbb1b37d7 for a full test report.

@boegel would it make sense to disable rpath altogether in the easyblock of XALT to avoid those issues? Something like we do on systemcompiler:

@boegel would it make sense to disable rpath altogether in the easyblock of XALT to avoid those issues? Something like we do on systemcompiler:

easybuild-easyblocks/easybuild/easyblocks/generic/systemcompiler.py

Line 138 in d0089d0

self.toolchain.options['rpath'] = False

I'm more in favor of trying to use patchelf to patch the (system) libraries copied by XALT...