Touching tcmalloc source files doesn't relink mongod in incremental compiles

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Critical - P2
    • 8.1.0-rc0
    • Affects Version/s: None
    • Component/s: None
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    • Fully Compatible
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      If I touch size_classes.cc, an incremental compile of Bazel compiles the new object, but doesn't re-link it into mongod. I can force a link to happen if I touch a header file like cpu_cache.h.

      I'm building with this SCons invocation options:

      python3 buildscripts/scons.py --opt=on --dbg=off CCFLAGS='-fdiagnostics-color=always'     --use-diagnostic-latches=off  --variables-files=etc/scons/developer_versions.vars --variables-files=etc/scons/mongodbtoolchain_stable_clang.vars ICECC=icecc CCACHE=ccache     VARIANT_DIR=opt --modules= NINJA_PREFIX=opt --link-model=static --ninja opt.ninja

      And this ninja command:

      ninja -f opt.ninja -j100 install-mongod

      Please pass this to Service Arch if this is a configuration issue. But naively, it seems like a Bazel problem.

            Assignee:
            Daniel Moody
            Reporter:
            Louis Williams
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              Created:
              Updated:
              Resolved: