On Monday, 12 January 2026 at 16:25:15 UTC-8 [email protected] wrote:

another question is why does one need a direct interface to libpari in 
cython code, instead of cypari2? 

 
I don't think I need that. I just need to be able to access some `Gen` 
objects from a pari data structure efficiently. I didn't ask for the 
pari_err symbol. But yet, the cython generated code wants to link it in. 
And the symbol resolved fine before (although probably in a bit underlinked 
situation). With some (recent? post 10.4?) changes, that's no longer the 
case. In fact, cypari2 may be the problem: how is setuptools able to derive 
from the cimport of cypari that libpari.so needs to be linked in as well? 
The distutils directive seems to do the trick, though, and that's a very 
minor change.

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