```
lang/python*: Fix build when archivers/lzmalib is installed
running build_ext
[...]
*** WARNING: renaming "_lzma" since importing it failed:
build/lib.freebsd-12.1-RELEASE-p8-amd64-3.7/_lzma.so:
Undefined symbol "lzma_check_is_supported"
This way Python will always link with lzma from base (libarchive).
Eventually we can build it against archivers/lzma, but currently
the port does not provide header and libraries.
PR: 209355, 243817
Reported by: Eir Nym <eirnym@gmail.com>
Reported by: doctor@doctor.nl2k.ab.ca
Submitted by: loader (earlier version)
Reviewed by: koobs (Python)
Differential Revision: D26477
```