What does it mean?

One of my customer unable to install plpgsql
with next message:

www2(dms)~>psql -d www -c "select tst(); "
ERROR:  Load of file /usr/local/pgsql/lib/plpgsql.so failed: dlopen
'/usr/local/pgsql/lib/plpgsql.so' failed. (/usr/local/pgsql/lib/plpgsql.so:
Undefined symbol "SPI_tuptable")
www2(dms)~>

what does it mean?

Env:
FreeBSD www2.sptimes.ru 3.1-RELEASE FreeBSD 3.1-RELEASE #4: Tue Mar 23 13:18:41
MSK 1999     wplus@www2.sptimes.ru:/usr/src/sys/compile/SPTIMES  i386

Postgres 6.4.2 release

PS:
How about adding something like -a key to pg_version to report full
release and compile information?



---
Dmitry Samersoff, dms@wplus.net, ICQ:3161705
http://devnull.wplus.net
* there will come soft rains ...