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[cxxmodules] Reduce the amount of header duplications in the modules. #10498

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merged 1 commit into from May 4, 2022
Merged

[cxxmodules] Reduce the amount of header duplications in the modules. #10498

merged 1 commit into from May 4, 2022

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vgvassilev
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This resolves a merging bug with libstdc++12. Fixes #10478

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Starting build on ROOT-debian10-i386/cxx14, ROOT-performance-centos8-multicore/default, ROOT-ubuntu16/nortcxxmod, ROOT-ubuntu2004/soversion, mac1015/python3, mac11/cxx17, windows10/cxx14
How to customize builds

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Build failed on ROOT-ubuntu2004/soversion.
Running on root-ubuntu-2004-1.cern.ch:/home/sftnight/build/workspace/root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T14:33:38.244Z] stderr: error: branch 'vgvassilev-gcc12' not found.
  • [2022-04-30T14:37:22.893Z] FAILED: core/G__Core.cxx lib/Core.pcm
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicExprInfo.h:40:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicLookupLifetimeHandler.h:56:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:24.272Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:41: error: use of undeclared identifier 'std'

And 33 more

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Build failed on ROOT-debian10-i386/cxx14.
Running on pcepsft10.dyndns.cern.ch:/build/workspace/root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicExprInfo.h:40:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicLookupLifetimeHandler.h:56:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:41: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:56: error: use of undeclared identifier 'std'
  • [2022-04-30T14:37:42.130Z] /home/sftnight/build/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:83: error: expected ',' or '>' in template-parameter-list

And 31 more

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Build failed on ROOT-performance-centos8-multicore/default.
Running on olbdw-01.cern.ch:/data/sftnight/workspace/root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T14:33:31.243Z] stderr: error: branch 'vgvassilev-gcc12' not found.
  • [2022-04-30T14:39:28.352Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicExprInfo.h:40:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/Interpreter/DynamicLookupLifetimeHandler.h:56:7: error: use of undeclared identifier 'std'
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/std.modulemap:441:12: error: header 'bits/utility.h' not found
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:41: error: use of undeclared identifier 'std'
  • [2022-04-30T14:39:28.353Z] /data/sftnight/workspace/root-pullrequests-build/build/etc/cling/Interpreter/Value.h:93:56: error: use of undeclared identifier 'std'

And 32 more

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Starting build on ROOT-debian10-i386/cxx14, ROOT-performance-centos8-multicore/default, ROOT-ubuntu16/nortcxxmod, ROOT-ubuntu2004/soversion, mac1015/python3, mac11/cxx17, windows10/cxx14
How to customize builds

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Build failed on ROOT-debian10-i386/cxx14.
Running on pcepsft11.dyndns.cern.ch:/home/sftnight/build/workspace/root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T14:43:33.625Z] stderr: error: branch 'vgvassilev-gcc12' not found.

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Build failed on windows10/cxx14.
Running on null:C:\build\workspace\root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T14:51:47.829Z] stderr: error: branch 'vgvassilev-gcc12' not found.

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Build failed on mac1015/python3.
Running on macitois21.dyndns.cern.ch:/Users/sftnight/build/workspace/root-pullrequests-build
See console output.

Errors:

  • [2022-04-30T20:30:11.454Z] stderr: error: branch 'vgvassilev-gcc12' not found.

@vgvassilev
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Looks like the builds and tests are happy, not sure what that error is...

@vgvassilev vgvassilev merged commit e88d533 into root-project:master May 4, 2022
@vgvassilev vgvassilev deleted the gcc12 branch May 4, 2022 06:25
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hahnjo commented May 4, 2022

Hi @vgvassilev, the header bits/utility.h was apparently only introduced for libstdc++12 and is not available in older versions (8.5.0 on C8S and 11.2.0 on Arch Linux). As a result, the build currently fails in C++17 mode unless using libc++. What is the correct way to make the header entry conditional in the modulemap?

(This went unnoticed in Jenkins because we don't have a C++17 build with GCC for PRs!! FYI @Axel-Naumann)

@vgvassilev
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@hahnjo, thanks! I hoped that will get unnoticed due to the requires clause. We don't have a good way to solve this. In theory rootcling can define modules-feature which tells us if this header exists or not. In practice, I think we can delete this entry from the modulemap again and ask the bug submitter to verify if the build works for them. I think the other two submodules have fixed the original issue.

@eguiraud eguiraud mentioned this pull request May 5, 2022
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This was referenced May 16, 2022
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@Axel-Naumann Axel-Naumann Axel-Naumann approved these changes

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Successfully merging this pull request may close these issues.

runtime_cxxmodules fails to build with GCC12
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@vgvassilev @phsft-bot @hahnjo @Axel-Naumann