create plperlu langage fails

hi,

i get an exception while trying to create plperlu langage :
CREATE OR REPLACE FUNCTION plperl_call_handler()
RETURNS language_handler
AS '/home/adocv3/postgresql-8.1.2/src/pl/plperl/libplperl.so', 'plperl_call_handler' LANGUAGE 'c' VOLATILE;
CREATE LANGUAGE 'plperlu' HANDLER plperl_call_handler LANCOMPILER 'PL/perl';

the error :
ERROR: could not load library "/home/adocv3/postgresql-8.1.2/src/pl/plperl/libplperl.so": ld.so.1: /opt/pgsql/bin/postgres: fatal: relocation error: file /home/adocv3/postgresql-8.1.2/src/pl/plperl/libplperl.so: symbol perl_call_pv: referenced symbol not found

thanks

Will

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