consistently add libffi + elfutils dependencies to recent Clang easyconfigs

[boegel]

(created using eb --new-pr)

edit: requires:

• fix version check for NVPTX library in sanity check of Clang easyblock easybuild-easyblocks#2783

[boegel]

@boegelbot please test @ generoso
CORE_CNT=16

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=16225 EB_ARGS= /opt/software/slurm/bin/sbatch --job-name test_PR_16225 --ntasks="16" ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 9136

Test results coming soon (I hope)...

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Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[boegelbot]

Test report by @boegelbot
FAILED
Build succeeded for 5 out of 6 (6 easyconfigs in total)
cnx2 - Linux Rocky Linux 8.5, x86_64, Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz (haswell), Python 3.6.8
See https://gist.github.com/e1cef9da11ed6724af892c71562ae6a8 for a full test report.

[boegel]

Sanity check for Clang v11.0.1 failed, see also easybuilders/easybuild-easyblocks#2782, fixed with easybuilders/easybuild-easyblocks#2783

[boegel]

@boegelbot please test @ generoso
EB_ARGS="--include-easyblocks-from-pr 2783 --module-only"

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=16225 EB_ARGS="--include-easyblocks-from-pr 2783 --module-only" /opt/software/slurm/bin/sbatch --job-name test_PR_16225 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 9144

Test results coming soon (I hope)...

- notification for comment with ID 1242712923 processed

Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[boegelbot]

Test report by @boegelbot
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#2783
SUCCESS
Build succeeded for 6 out of 6 (6 easyconfigs in total)
cns2 - Linux Rocky Linux 8.5, x86_64, Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz (haswell), Python 3.6.8
See https://gist.github.com/d430a2d01779ffc2a0b37828b55abfae for a full test report.

[SebastianAchilles]

@boegelbot please test @ jsc-zen2
EB_ARGS="--include-easyblocks-from-pr 2783 --module-only"

[boegelbot]

@SebastianAchilles: Request for testing this PR well received on jsczen2l1.int.jsc-zen2.easybuild-test.cluster

PR test command 'EB_PR=16225 EB_ARGS="--include-easyblocks-from-pr 2783 --module-only" /opt/software/slurm/bin/sbatch --job-name test_PR_16225 --ntasks=8 ~/boegelbot/eb_from_pr_upload_jsc-zen2.sh' executed!

• exit code: 0
• output:

Submitted batch job 1630

Test results coming soon (I hope)...

- notification for comment with ID 1242734716 processed

Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[SebastianAchilles]

lgtm

[SebastianAchilles]

Going in, thanks @boegel!