Bug 1902626

Summary: root fails to build with Python 3.10: g++: fatal error: Killed signal terminated program cc1plus compilation terminated.
Product: [Fedora] Fedora Reporter: Tomáš Hrnčiar <thrnciar>
Component: rootAssignee: Mattias Ellert <mattias.ellert>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
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Version: rawhideCC: mattias.ellert, mhroncok, thrnciar
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Last Closed: 2020-12-01 08:24:34 UTC Type: Bug
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Description Tomáš Hrnčiar 2020-11-30 08:21:27 UTC 
root fails to build with Python 3.10.0a2.

g++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
gmake[2]: *** [interpreter/llvm/src/tools/clang/lib/AST/CMakeFiles/clangAST.dir/build.make:111: interpreter/llvm/src/tools/clang/lib/AST/CMakeFiles/clangAST.dir/ASTContext.cpp.o] Error 1

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.10/fedora-rawhide-x86_64/01805991-root/

For all our attempts to build root with Python 3.10, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/package/root/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.
Comment 1 Mattias Ellert 2020-12-01 08:24:34 UTC 
This failure is not reproducible in a local mock build with the python 3.10 copr repo added.

The resulting RPMs properly depend on python 3.10:

$ rpm -q --requires -p results_root/6.22.06/1.fc34/python3-root-6.22.06-1.fc34.x86_64.rpm | grep python
python(abi) = 3.10

The error reported in your build log does not seem python related. Did the build simply ran out om memory or something similar?
Comment 2 Tomáš Hrnčiar 2020-12-02 07:57:00 UTC 
> The error reported in your build log does not seem python related. Did the
> build simply ran out om memory or something similar?

Yes, you are correct. Sorry for the noise. I tried to rebuild it and it builds alright.