[Do not merge][15_1_ROOT636_X] Enable ROOT debug

[makortel]

To aid debugging in cms-sw/cmssw#48817 (comment)

Cherry-picked from #9761

[makortel]

@cmsbuild, please build

[cmsbuild]

A new Pull Request was created by @makortel for branch IB/CMSSW_15_1_X/root636.

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

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-63f25c/47976/summary.html
COMMIT: 23ecc21
CMSSW: CMSSW_15_1_ROOT636_X_2025-09-03-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10059/47976/install.sh to create a dev area with all the needed externals and cmssw changes.

[smuzaffar]

closing this as we do not build 15.1.X ROOT636 IBs any more