ABIs are hard

Hm, I suppose this is expected. I always hated the idea that libraries could
introduce new symbols without an soname bump but obviously nobody's going to
be interested in an soname bump today...

! /home/stark/src/local-HEAD/pgsql/src/test/regress/./tmp_check/install//usr/local/pgsql/bin/psql: symbol lookup error:
/home/stark/src/local-HEAD/pgsql/src/test/regress/./tmp_check/install//usr/local/pgsql/bin/psql:undefined symbol:
pg_valid_server_encoding_id

--  Gregory Stark EnterpriseDB          http://www.enterprisedb.com