Repository navigation
./configure eventfd support does not also check for existence of flags #93899
Description
Bug report
The configure script currently checks if sys/eventfd.h exists, and then later uses that in posixmodule.c here: https://github.com/python/cpython/blob/main/Modules/posixmodule.c#L15465 . The issue comes from that eventfd was introduced in 2.6.22, but EFD_CLOEXEC, EFD_NONBLOCK, EFD_SEMAPHORE were introduced in 2.6.26, 2.6.26 and 2.6.30 respectively and which are assumed to be present.
Your environment
I encountered this on Fedora 10 i386 with kernel version 2.6.27 so build was failing on EFD_SEMAPHORE. I tested this on CPython 3.10.5 and this should be an issue in 3.10 since eventfd was introduced in that version I believe.
Activity
Merge branch 'main' of https://github.com/python/cpython into pythong…
Merge branch 'main' of https://github.com/python/cpython into pythong…
GH-93899: fix checks for eventfd flags (GH-95170)
[3.11] pythonGH-93899: fix checks for eventfd flags (pythonGH-95170).
[3.10] pythonGH-93899: fix checks for eventfd flags (pythonGH-95170).
erlend-aasland commentedon Jul 27, 2022
Fixed by:
erlend-aasland commentedon Jul 27, 2022
Thanks for the report, @gha-xena; thanks for the PR, Kumar!
[3.11] GH-93899: fix checks for eventfd flags (GH-95170). (#95342)
[3.10] GH-93899: fix checks for eventfd flags (GH-95170). (#95345)