looks like you need to link against your kerberos library. Possibly, adding something like -lkrb5 should do it.
>And the pertinent text: >: undefined reference to `krb5_cc_close' >/usr/lib/postgresql/lib//libpq.a(fe-auth.o)(.text+0x1c7): In function >`pg_krb5_init': >: undefined reference to `krb5_cc_close' >collect2: ld returned 1 exit status >make: *** [smtp] Error 1 >Sorry, Make failed.
