There is a new pull request by tornaria against master on the void-packages repository

https://github.com/tornaria/void-packages fplll
https://github.com/void-linux/void-packages/pull/39838

Update fplll to 5.4.2 and python3-fpylll to 0.5.7 
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#### Testing the changes
- I tested the changes in this PR: **briefly**

This is used by sagemath, no recompilation needed. Quick test in sage and in python:
```sh
$ sage -c 'A=MatrixSpace(ZZ,5,5).random_element(x=1000) ; print([v.norm().n() for v in A]); print([v.norm().n() for v in A.LLL(algorithm="fpLLL:proved")])'
[993.214981763767, 1079.85971311092, 666.938527901935, 1509.64134813538, 1051.61257124475]
[411.366017069957, 517.504589351631, 590.928929736902, 666.938527901935, 749.318356908464]
$ python -c 'import fpylll;  A = fpylll.IntegerMatrix(5,5); A.randomize("uniform", bits=10); print([v.norm() for v in A]); print([v.norm() for v in fpylll.LLL.reduction(A)])'
[1161.9513759189754, 1144.8654942830622, 1397.8594349933758, 1367.0314553805995, 1256.5377033738382]
[180.25814822082245, 247.34793308212625, 316.30681307869423, 584.1771991442323, 710.8719997299091]
$ xbps-query --regex -s fp.?lll
[*] fplll-5.4.2_1          Lattice algorithms using floating-point orthogonalization and LLL
[*] fplll-devel-5.4.2_1    Lattice algorithms using floating-point orthogonalization and LLL - development files
[*] python3-fpylll-0.5.7_1 Python wrapper to fplll (floating point lattice algorithms)
```


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A patch file from https://github.com/void-linux/void-packages/pull/39838.patch is attached