and if 
./configure --exec-prefix=/usr/local/php5 --with-mnogosearch=/usr/local/mnsh --w
ith-imap=/usr/local --enable-ldap --enable-force-cgi-redirect --with-tsrm-pth --
with-dom=/usr/local --with-dom-xslt=/usr/local --with-dom-exslt=/usr/local --ena
ble-inline-optimization --enable-trans-sid --enable-versioning --enable-ftp --wi
th-xml --with-magic-quotes --enable-track-vars --with-png-dir=/usr/local --with-
apxs=/usr/local/apachephp5/bin/apxs --with-gd --with-jpeg-dir=/usr/local --with-
gettext=/usr/local --with-bz2=/usr/local --with-zlib=/usr --with-mysql=/usr/loca
l/mysql --enable-calendar --enable-safe-mode --enable-sysvsem --enable-sysvshm -
-with-config-file-path=/usr/local/php5 --with-mod_charset --enable-bcmath --with
-iconv=/usr/local

gmake
......
o Zend/zend_variables.lo Zend/zend.lo Zend/zend_API.lo Zend/zend_extensions.lo Z
end/zend_hash.lo Zend/zend_list.lo Zend/zend_indent.lo Zend/zend_builtin_functio
ns.lo Zend/zend_sprintf.lo Zend/zend_ini.lo Zend/zend_qsort.lo Zend/zend_multiby
te.lo Zend/zend_ts_hash.lo Zend/zend_stream.lo Zend/zend_objects.lo Zend/zend_ob
ject_handlers.lo Zend/zend_objects_API.lo Zend/zend_mm.lo Zend/zend_default_clas
ses.lo Zend/zend_execute.lo sapi/cli/php_cli.lo sapi/cli/getopt.lo main/internal
_functions_cli.lo -lcrypt -lc-client4 -lbind -lcrypt -lmysqlclient -lcrypt -lpam
 -liconv -lintl -lpng -lz -ljpeg -lz -lbz2 -lz -lm -lxml2 -lz -liconv -lm -lz -l
m -lmysqlclient -lmnogosearch -lmnogocharset -lxml2 -lz -liconv -lm -lcrypt -lxm
l2 -lz -liconv -lm -lcrypt  -o sapi/cli/php
ext/standard/dns.lo: In function `zif_dns_get_record':
/second/dist/compile/php/php-5.0.0b1/ext/standard/dns.c(.text+0x18b0): undefined
 reference to `res_ninit'
/second/dist/compile/php/php-5.0.0b1/ext/standard/dns.c(.text+0x18ef): undefined
 reference to `res_nmkquery'
/second/dist/compile/php/php-5.0.0b1/ext/standard/dns.c(.text+0x191d): undefined
 reference to `res_nsend'
/second/dist/compile/php/php-5.0.0b1/ext/standard/dns.c(.text+0x1a80): undefined
 reference to `res_nclose'
gmake: *** [sapi/cli/php] ?????? 1

This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.