GDBM_File help

Hello, there,
I would like to tie a hash (quite big, probably millions of records) to
dbm file.
I don't have DGBM installed in my UNIX system. I cannot use the NDBM,
which is default in my system, because it has size limit. I am not
system admin and the system admin just ignore my request to put the
GDBM_File in the perl library.
Does anyone know if I can put the GDBM in my working directory and use
it from there? If yes, could you please tell me how to do it?
Thanks a lot in advance.
Pablo

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