Bug#917882: petsc4py: patch to fix underlinking issue in testsuite

[Gianfranco Costamagna]

Source: petsc4py
Version 3.10.0-4
tags: patch

Hello,
https://bitbucket.org/petsc/petsc4py/pull-requests/112/demo-perftest-poisson3d-fixup-linking/diff

Please apply this diff to fix build failures (test failures) when wl,asneeded is exported as gcc build flag.

thanks!

G.