libpq: illegal reference to symbol: _BIO_free

Trying to compile a simple PostgreSQL website libpq based piece of code,
and after several attempts (to get right linked libs etc..) I finally
get only one
last error but I can't deal with:

"ld: /usr/local/pgsql/lib/libpq.a(fe-secure.o) illegal reference to
symbol: _BIO_free defined in indirectly referenced dynamic library
/usr/lib/libcrypto.0.9.dylib"

Any help would be appreciated.

Thanks !

Regards.

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Stéphane
iChat/AIM: s.pinel
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