Help in compiling 8.1.2 from source

iHELP!!

I compile postgresql 8.1.2

using:
./configure \
  --prefix=/usr/local/pgsql \
  --infodir=/usr/share/info \
  --mandir=/usr/share/man \
  --enable-debug \
  --enable-depend \
  --enable-cassert \
  --enable-thread-safety  \
  --with-perl  \
  --with-openssl  \
  --with-gnu-ld


and Now I am getting:

ns1# FATAL:  database files are incompatible with server
DETAIL:  The database cluster was initialized with HAVE_INT64_TIMESTAMP but the server was compiled without
HAVE_INT64_TIMESTAMP.
HINT:  It looks like you need to recompile or initdb.


What do I need to get this running again?

--
Member - Liberal International
This is doctor@nl2k.ab.ca    Ici doctor@nl2k.ab.ca
God Queen and country! Beware Anti-Christ rising!
Born 29 Jan 1969 Redhill Surrey UK

--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.