Comments (2)
colesbury
commented on June 21, 2024
1
You can build CPython with GCC 4.8. Mimalloc is optional in the default build and is disabled by configure if stdatomic.h is not available.
I'm not sure what went wrong with the buildbot, but something is fishy. configure thought that stdatomic.h was present and that gcc does not need any options to enable C11 features, but GCC 4.8 needs -std=gnu11 for C11 features. I wonder if the compiler used for configure and make were different.
I built main successfully with an Ubuntu 18.04 image and GCC 4.8. There is this warning after running configure, but otherwise it builds fine:
configure: Your compiler or platform does have a working C11 stdatomic.h. A future version of Python may require stdatomic.h.
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encukou
commented on June 21, 2024
Right. That buildbot run was misconfigured (configure had an up-to-date GCC on $PATH, but the build apparently had a decade-old one O.o)
Sorry for the noise, and thank you for the info!
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