main/pgpool: build PostgreSQL extentions
Currently it's not possible to use the online recovery feature:
postgres=# CREATE EXTENSION pgpool_recovery;
ERROR: extension "pgpool_recovery" is not available
DETAIL: Could not open extension control file "/usr/share/postgresql16/extension/pgpool_recovery.control": No such file or directory.
HINT: The extension must first be installed on the system where PostgreSQL is running.
Can we add support for it? Tried installing a locally built package and it works just fine:
postgres=# CREATE EXTENSION pgpool_recovery;
CREATE EXTENSION