warning when running ./configure on gentoo box

[boo_lolly]

sandbox mysql-5.0.37-linux-i686 # ./configure --prefix=/usr/local/mysql
NOTE: This is a MySQL binary distribution. It's ready to run, you don't
need to configure it!

To help you a bit, I am now going to create the needed MySQL databases
and start the MySQL server for you.  If you run into any trouble, please
consult the MySQL manual, that you can find in the Docs directory.

WARNING: The host 'sandbox' could not be looked up with resolveip.
This probably means that your libc libraries are not 100 % compatible
with this binary MySQL version. The MySQL daemon, mysqld, should work
normally with the exception that host name resolving will not work.
This means that you should use IP addresses instead of hostnames
when specifying MySQL privileges !
Installing all prepared tables
Fill help tables

To start mysqld at boot time you have to copy support-files/mysql.server
to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
./bin/mysqladmin -u root password 'new-password'
./bin/mysqladmin -u root -h sandbox password 'new-password'
See the manual for more instructions.

NOTE:  If you are upgrading from a MySQL <= 3.22.10 you should run
the ./bin/mysql_fix_privilege_tables. Otherwise you will not be
able to use the new GRANT command!

You can start the MySQL daemon with:
cd . ; ./bin/mysqld_safe &

You can test the MySQL daemon with the benchmarks in the 'sql-bench' directory:
cd sql-bench ; perl run-all-tests

Please report any problems with the ./bin/mysqlbug script!

The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at http://shop.mysql.com
Starting the mysqld server.  You can test that it is up and running
with the command:
./bin/mysqladmin version

nohup: redirecting stderr to stdout
chown: `mysql': invalid user
Starting mysqld daemon with databases from /usr/local/src/mysql-5.0.37-linux-i686/data
STOPPING server from pid file /usr/local/src/mysql-5.0.37-linux-i686/data/sandbox.pid
sandbox mysql-5.0.37-linux-i686 # 070502 04:17:10  mysqld ended

 

i'm following this guide to install LAMP on my gentoo box. when i run the conifigure command, the message above is what gets printed out. i have no idea what it means or what to do from here. has anybody seen this message before?