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ad `posixmodule.c` doesn't detect xattr support on Linux with non-glibc (e.g. musl) · Issue #101857 · python/cpython · GitHub
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posixmodule.c doesn't detect xattr support on Linux with non-glibc (e.g. musl) #101857

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posixmodule.c doesn't detect xattr support on Linux with non-glibc (e.g. musl)#101857
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buildThe build process and cross-buildextension-modulesC modules in the Modules dirtype-bugAn unexpected behavior, bug, or error

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@thesamesam
thesamesam
opened on Feb 12, 2023

Bug report

posixmodule.c detects xattr support by checking for __GLIBC__ (and some other conditions) at

cpython/Modules/posixmodule.c

Line 277 in 86ebd5c

#if defined(HAVE_SYS_XATTR_H) && defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__GNU__)
. This incorrectly excludes the musl libc,which supports xattr functionality.

On a musl system, it's easy to reproduce with:

>>> import os
>>> os.listxattr 
Traceback (most recent call last): 
	File "", line 1, in
AttributeError: module 'os' has no attribute 'listxattr'

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buildThe build process and cross-buildextension-modulesC modules in the Modules dirtype-bugAn unexpected behavior, bug, or error

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