At a very quick glance, Simon's patch looks a bit closer to the pull request than the one in comment #4, so if you could test that soon that would be good.
Simon, aside from debian/patches/lp1932010-ibm-z-add-vectorized-crc32-implementation.patch which I'm not sure I'm competent to review beyond seeing how it compares to the pull request, your patch looks mostly fine but it seems you've duplicated the definition of CONFIGURE_* in debian/rules? You probably don't want to do that?
At a very quick glance, Simon's patch looks a bit closer to the pull request than the one in comment #4, so if you could test that soon that would be good.
Simon, aside from debian/ patches/ lp1932010- ibm-z-add- vectorized- crc32-implement ation.patch which I'm not sure I'm competent to review beyond seeing how it compares to the pull request, your patch looks mostly fine but it seems you've duplicated the definition of CONFIGURE_* in debian/rules? You probably don't want to do that?