[Dovecot] vpopmail support on 64 bits

Good day!

Compiling 1.1.11 with vpopmail flag on a 64bit system drop me these warnings that breaks it portability:

passdb-vpopmail.c: In function 'vpopmail_lookup_credentials': passdb-vpopmail.c:71: warning: pointer targets in passing argument 2 of 'callback' differ in signedness passdb-vpopmail.c: In function 'vpopmail_preinit': passdb-vpopmail.c:141: warning: implicit declaration of function 'auth_cache_parse_key' passdb-vpopmail.c:142: warning: assignment makes pointer from integer without a cast

Thanks.

[ ]'s Aledr - Alexandre "OpenSource Solutions for SmallBusiness Problems"