fix Rust sysroot patch to properly skip libraries when setting the interpreter with patchelf

[bedroge]

The build of Rust 1.85.1 failed in EESSI (EESSI/software-layer#1249), because of:

running: patchelf --set-interpreter /cvmfs/software.eessi.io/versions/2025.06/compat/linux/x86_64/lib64/ld-linux-x86-64.so.2 /tmp/bot/easybuild/build/Rust/1.85.1/GCCcore-14.2.0/rustc-1.85.1-src/build/x86_64-unknown-linux-gnu/stage0/lib/libLLVM.so.19.1-rust-1.84.0-stable
patchelf: cannot find section '.interp'. The input file is most likely statically linked

This is caused by the existing patch that tries to skip libraries by checking if their filename ends with ".so":
https://github.com/easybuilders/easybuild-easyconfigs/blob/develop/easybuild/easyconfigs/r/Rust/Rust-1.70_sysroot-fix-interpreter.patch#L30

Obviously, that doesn't work for this file named libLLVM.so.19.1-rust-1.84.0-stable. Instead, I'm now using the approach that Rust's bootstrap script already uses here, i.e. by simply checking if the filename contains .so: https://github.com/rust-lang/rust/blob/master/src/bootstrap/bootstrap.py#L863

[bedroge]

@boegelbot please test @ jsc-zen3
CORE_CNT=16
EB_ARGS="--installpath /tmp/$USER/pr-24331"

[boegelbot]

@bedroge: Request for testing this PR well received on jsczen3l1.int.jsc-zen3.fz-juelich.de

PR test command 'if [[ develop != 'develop' ]]; then EB_BRANCH=develop ./easybuild_develop.sh 2> /dev/null 1>&2; EB_PREFIX=/home/boegelbot/easybuild/develop source init_env_easybuild_develop.sh; fi; EB_PR=24331 EB_ARGS="--installpath /tmp/$USER/pr-24331" EB_CONTAINER= EB_REPO=easybuild-easyconfigs EB_BRANCH=develop /opt/software/slurm/bin/sbatch --job-name test_PR_24331 --ntasks="16" ~/boegelbot/eb_from_pr_upload_jsc-zen3.sh' executed!

• exit code: 0
• output:

Submitted batch job 8506

Test results coming soon (I hope)...

Details

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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).

[bedroge]

Successful EESSI build (i.e. with non-standard sysroot) in EESSI/software-layer#1249 (comment).

[boegel]

lgtm

[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 15 out of 15 (15 easyconfigs in total)
jsczen3c1.int.jsc-zen3.fz-juelich.de - Linux Rocky Linux 9.6, x86_64, AMD EPYC-Milan Processor (zen3), Python 3.9.21
See https://gist.github.com/boegelbot/1e7bd1ee823330bf252d612d3e9d296e for a full test report.

[boegel]

Test report by @boegel
SUCCESS
Build succeeded for 7 out of 7 (7 easyconfigs in total)
node4202.shinx.os - Linux RHEL 9.6, x86_64, AMD EPYC 9654 96-Core Processor (zen4), Python 3.9.21
See https://gist.github.com/boegel/a59144c400b44429a35b215e5a0b0dac for a full test report.

[boegel]

Test report by @boegel
SUCCESS
Build succeeded for 8 out of 8 (8 easyconfigs in total)
node4205.shinx.os - Linux RHEL 9.6, x86_64, AMD EPYC 9654 96-Core Processor (zen4), Python 3.9.21
See https://gist.github.com/boegel/f42c0b1c788597d0688e85318b61fdb9 for a full test report.

[boegel]

Going in, thanks @bedroge!