last krb5 changes

[metze at metzemix.de]

Hi Jeremy,

I got this error with your new krb5 changes...

Linking bin/smbd
libads/kerberos_verify.o(.text+0x42a): In function `ads_verify_ticket':
/home/People/metze/smb/3_0-configure/source/libads/kerberos_verify.c:116: 
undefined reference to `krb5_princ_component'
collect2: ld returned 1 exit status
make: *** [bin/smbd] Fehler 1

On SuSE 8.2 and heimdal 0.4e