STINNER Victor added the comment:

I'm not excited by the idea of using hardcoded constants for getrandom(). There 
is a risk of using wrong constants depending on the architecture or the Linux 
kernel version.

The code is already very low-level: it calls directly the syscall using 
syscall() function. getrandom() has no nice glibc clean API yet:

I suggest to close the issue as WONTFIX. It's ok to use a file descriptor and 
read /dev/urandom. getrandom() is nice to have, but it's not really a killer 

For Fedora: sure, you can use vendor patches to workaround your technical 
issue, builders using an old kernel :-) But it would be simpler to upgrade the 
builder, no? :-)


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