createlang problme

Hi All,
i'm using RedhatLinux7.2, on top of this i upgrade the Postgres with V7.3.3.

After that, i tried to create a language with a createlang command.

ERROR: Load of file /usr/local/pgsql/lib/plpgsql.so failed:
/usr/local/pgsql/lib/plpgsql.so: un
defined symbol: xlateSqlType
createlang: language installation failed

Can some one help me to come out of this problem,

Thanks in advance
Vijay

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