sendmail 8.12.8을 설치 중 오류 발생

Build를 실행했는데 아래와 같은 오류 메시지가 나타났습니다.
뭘 어떻게 해야 하는지 몰라서....
다운 받아서 그냥 ./Build했습니다.
혹시 더 깔아야 하는 package가 있는지...
조언 좀 부탁 드립니다.

cc -o sendmail main.o alias.o arpadate.o bf.o collect.o conf.o control.o convtime.o daemon.o deliver.o domain.o envelope.o err.o headers.o macro.o map.o mci.o milter.o mime.o parseaddr.o queue.o readcf.o recipient.o sasl.o savemail.o sfsasl.o shmticklib.o sm_resolve.o srvrsmtp.o stab.o stats.o sysexits.o timers.o tls.o trace.o udb.o usersmtp.o util.o version.o /root/Temp/sendmail-8.12.8/obj.Linux.2.4.7-10.i686/libsmutil/libsmutil.a /root/Temp/sendmail-8.12.8/obj.Linux.2.4.7-10.i686/libsm/libsm.a -ldl
domain.o In function `getmxrr'
domain.o(.text+0x25f) undefined reference to `__res_query'
domain.o(.text+0x266) undefined reference to `__res_search'
domain.o(.text+0x39b) undefined reference to `__dn_skipname'
domain.o(.text+0x496) undefined reference to `__dn_expand'
domain.o(.text+0x603) undefined reference to `__dn_expand'
domain.o In function `dns_getcanonname'
domain.o(.text+0xf0c) undefined reference to `__res_querydomain'
domain.o(.text+0x100f) undefined reference to `__dn_skipname'
domain.o(.text+0x123f) undefined reference to `__dn_expand'
domain.o(.text+0x128a) undefined reference to `__dn_expand'
sm_resolve.o In function `parse_dns_reply'
sm_resolve.o(.text+0x17e) undefined reference to `__dn_expand'
sm_resolve.o(.text+0x1fe) undefined reference to `__dn_expand'
sm_resolve.o(.text+0x325) undefined reference to `__dn_expand'
sm_resolve.o(.text+0x377) more undefined references to `__dn_expand' follow
sm_resolve.o In function `dns_lookup_int'
sm_resolve.o(.text+0x67a) undefined reference to `__res_search'
collect2 ld returned 1 exit status