build problem on AMD64

[Mei, Jia]

Hi,

have anybody sucessfully build krb5 on Linux-x86_64? I just searched the 
mail archive and can't find the answer.

I'm trying to build krb5 on Opteron, which installed suse8:
(1)
  ./configure --prefix=/krb5 --enable-shared --without-krb4
  ....
  checking if DNS Kerberos lookup support should be compiled in... yes
  checking for res_search... no
  checking for res_search in -lresolv... no
  configure: error: Cannot find resolver support routine res_search in
  -lresolv.

but actually there's libresolv.so come with glibc, under /lib64, and 
also a 32-bit version under /lib. so what's the problem?

(2) if add added --disable-dns, now the new problem is:
   checking if DNS Kerberos lookup support should be compiled in... no
   checking build system type... Invalid configuration
   `x86_64-unknown-linux-gnu': machine `x86_64-unknown' not recognized
   configure: error: /bin/sh ./config/config.sub x86_64-unknown-linux-gnu
   failed

on the machine "uname -a" output is:
   Linux opt1 2.4.19 #1 Mon Mar 31 23:47:50 UTC 2003 x86_64 unknown
is that anything wrong with my system?

Thanks a lot!

MeiJia