- don't try to link -lstdc++ (hardcoded) which was done specially by
upstream "We need to explicitly link against -lstdc++ on OpenBSD
discovered on OpenBSD 3.7 with GCC 3.3.5 but this appears to
be due to a deliberate decision on the part of OpenBSD developers"
- use gnu libtool, base libtool doesn't support -shrext which breaks
things for python 3.8.7+ which uses an abi prefix for .so files
- regen patches
e42a9f242a