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Author vstinner
Recipients vstinner
Date 2020-01-20.17:14:25
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1579540465.66.0.318494432862.issue39398@roundup.psfhosted.org>
In-reply-to
Content 
"AMD64 Fedora Rawhide Clang 3.x" buildbot worker is currently broken:
https://buildbot.python.org/all/#/builders/169/builds/168

clang cannot build (statically linked) binary using UBSan:

$ ./configure --prefix '$(PWD)/target' CC=clang LD=clang CFLAGS=-fsanitize=undefined LDFLAGS=-fsanitize=undefined
...
checking for gcc... clang
checking whether the C compiler works... no
configure: error: in `/home/buildbot/buildarea/3.x.cstratak-fedora-rawhide-x86_64.clang-ubsan/build':
configure: error: C compiler cannot create executables
See `config.log' for more details

I reproduced the issue on the worker. The issue comes from a version conflict between clang and compiler-rt packages:

compiler-rt-9.0.0-1.fc32.x86_64 uses /usr/lib64/clang/9.0.0/...

vs

clang-9.0.1-2.fc32.x86_64 uses /usr/lib64/clang/9.0.1/...

Charalampos created https://src.fedoraproject.org/rpms/compiler-rt/pull-request/10 to propose to update compiler-rt.
History
Date User Action Args
2020-01-20 17:14:25vstinnersetrecipients: + vstinner
2020-01-20 17:14:25vstinnersetmessageid: <1579540465.66.0.318494432862.issue39398@roundup.psfhosted.org>
2020-01-20 17:14:25vstinnerlinkissue39398 messages
2020-01-20 17:14:25vstinnercreate