cepgen: add dependency on bzlib2

[iarspider]

This fixes the following error:

02:37:07 RpmInstallFailed: Failed to install package cepgen. Reason:
02:37:07 error: Failed dependencies:
02:37:07 	libbz2.so.1()(64bit) is needed by external+cepgen+1.1.0-f16bfcee94054c9329075aefb119b6cc-1-1.aarch64
02:37:07 

The library is used to handle compressed HepMC3 files.

@forthommel

[cmsbuild]

A new Pull Request was created by @iarspider for branch IB/CMSSW_13_1_X/master.

@cmsbuild, @smuzaffar, @aandvalenzuela, @iarspider can you please review it and eventually sign? Thanks.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.
cms-bot commands are listed here

[iarspider]

please test for el9_aarch64_gcc11

[cmsbuild]

Pull request #8329 was updated.

[smuzaffar]

please test

[smuzaffar]

please test for el9_aarch64_gcc11

[smuzaffar]

@iarspider , I see the following in build log

-- Found ZLIB: /usr/lib64/libz.so (found version "1.2.11") 
-- Could NOT find LibLZMA (missing: LIBLZMA_LIBRARY LIBLZMA_INCLUDE_DIR LIBLZMA_HAS_AUTO_DECODER LIBLZMA_HAS_EASY_ENCODER LIBLZMA_HAS_LZMA_PRESET) 
-- Found BZip2: /usr/lib64/libbz2.so (found version "1.0.6") 
-- Looking for BZ2_bzCompressInit
-- Looking for BZ2_bzCompressInit - found

looks like cmake needs to be properly configured to find bz2lib and zlib. Can you please add

-DCMAKE_PREFIX_PATH="${<TOOL>_ROOT}...for the tools cepgen depend it"

I would suggest to try to build it locally and see if that is enough for cepgen to use externals for cms area

[iarspider]

@smuzaffar ok

[iarspider]

please abort

[cmsbuild]

Pull request #8329 was updated.

[iarspider]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-df839f/30807/summary.html
COMMIT: 392e50c
CMSSW: CMSSW_13_1_X_2023-02-21-2300/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/8329/30807/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 32 lines to the logs
• ROOTFileChecks: Some differences in event products or their sizes found
• Reco comparison results: 5 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3528709
• DQMHistoTests: Total failures: 6
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3528681
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 213 log files, 164 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[smuzaffar]

+externals
build log looks good now

-- Found ZLIB: /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/zlib/1.2.11-3dfb2715f3608466b74431b80eb9d788/lib/libz.so (found version "1.2.8") 
-- Looking for lzma_auto_decoder in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so
-- Looking for lzma_auto_decoder in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so - found
-- Looking for lzma_easy_encoder in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so
-- Looking for lzma_easy_encoder in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so - found
-- Looking for lzma_lzma_preset in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so
-- Looking for lzma_lzma_preset in /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so - found
-- Found LibLZMA: /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/xz/5.2.5-83d0a00b575efd1701e07bedf7977343/lib/liblzma.so (found version "5.2.5") 
-- Found BZip2: /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/el8_amd64_gcc11/external/bz2lib/1.0.6-2c1f18484cb66c30aba7929f2be5e7d4/lib/libbz2.so (found version "1.0.6") 
-- Looking for BZ2_bzCompressInit
-- Looking for BZ2_bzCompressInit - found

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_13_1_X/master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)