Undefined symbol "elog"

Hi folks,

I upgraded two servers from 7.3.* to 7.4.1. In both cases, the
pgcrypto functions failed to migrate.. I used pg_dumpall. This is
the cause of the problem:

freshports=# CREATE FUNCTION digest (text, text) RETURNS bytea
freshports-# AS '$libdir/pgcrypto', 'pg_digest'
freshports-# LANGUAGE c;
ERROR: could not load library
"/usr/local/lib/postgresql/pgcrypto.so": dlopen
'/usr/local/lib/postgresql/pgcrypto.so' failed. (/usr/local/lib/postgresql/pgcrypto.so:
Undefined symbol "elog")

Recompiling and installing contrib/pgcrypto made the problem go away.
I found no mention of this problem in the archives.

FWIW: I was using the FreeBSD port on 4.9-STABLE.

--
Dan Langille : http://www.langille.org/
BSDCan - http://www.bsdcan.org/