Recently in Debian's pthon3.10 the default scheme for sysconfig
changed from 'posix_prefix' to 'posix_local'. VolkPython.cmake
expects the 'posix_prefix' behavior. So explicity use it.
Signed-off-by: A. Maitland Bottoms <bottoms@debian.org>
Gbp-Pq: Name volkpython-use-posix-prefix-scheme
The abi-compliance-checker grabs all the .h files it finds
and tries to compile them all. Even though some are not
appropriate for the architecture being run on. Being careful
with preprocessor protections avoids problems.