encoding problem

Hi
i just upgrading postgres from 7.0 to 7.2 and i have the folowing error in
configuration process
what happen ? how to fix this problem ?

Enter default encoding (SQL_ASCII):
Now installing the PostgreSQL database files in /var/lib/postgres/data
su - postgres -c cd /var/lib/postgres; . ./.profile; LANG= initdb --encoding
SQL_ASCII --pgdata /var/lib/postgres/data
/usr/lib/postgresql/bin/pg_encoding: relocation error:
/usr/lib/postgresql/bin/pg_encoding: undefined symbol: pg_char_to_encoding
initdb: pg_encoding failed


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Fouad Fezzi
Ingenieur R�seau
IUP Institut Universitaire Professionnalis�
Universite d'Avignon et des Pays de Vaucluse
339 ch. des Meinajaries
tel : (+33/0) 4 90 84 35 50
BP 1228 - 84911 AVIGNON CEDEX 9
fax : (+33/0) 4 90 84 35 01
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