v1.5: uls_inet6: We always need to start clearing from the last word back,

this does not vary based on the number of bits.

v1.4

uls_inet6: remove errno.h header which was used during debugging.

v1.3: Additional pipesignal process.

Intended to enable writing to the write-end of a named pipe, however,
this really is just writing to a file.

v1.2

Use mysqld --help --verbose to try and find the plugin-dir.

v1.1

allow for VARIANT= and default to mariadb (which is what we use).

initial release

This has been used in a stable manner, with minor modifications, since June 2020.