Build rules: set default micro arch for all builds

[smuzaffar]

Add `-DCMS_MICRO_ARCH='""' for all archs when build cmssw

[cmsbuild]

A new Pull Request was created by @smuzaffar for branch IB/CMSSW_15_0_X/master.

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

[cmsbuild]

cms-bot internal usage

[smuzaffar]

test parameters:

• addpkg = FWCore

[smuzaffar]

please test

[cmsbuild]

-1

Failed Tests: UnitTests
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-461a8a/43974/summary.html
COMMIT: 4a69378
CMSSW: CMSSW_15_0_X_2025-01-27-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/9637/43974/install.sh to create a dev area with all the needed externals and cmssw changes.

Unit Tests

I found 1 errors in the following unit tests:

---> test testFWCoreConcurrency had ERRORS

Comparison Summary

Summary:

• You potentially added 16 lines to the logs
• Reco comparison results: 7 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 3994126
• DQMHistoTests: Total failures: 113
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3993993
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 49 files compared)
• Checked 218 log files, 189 edm output root files, 50 DQM output files
• TriggerResults: no differences found

[smuzaffar]

+externals

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_15_0_X/master IBs (but tests are reportedly failing). This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @antoniovilela, @mandrenguyen, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)