Error during installation of ruby 1.8.4

[mabdelmawla]

I tried to install ruby 1.8.4 and I followed the instruction in readme file.

I typed the following: ./configure
then the following message resulted:
"
[root@mabdelmawla ruby-1.8.4]# ./configure
checking build system type... ./config.guess: unable to guess system type

This script, last modified 2004-06-11, has failed to recognize
the operating system you are using. It is advised that you
download the most up to date version of the config scripts from

ftp://ftp.gnu.org/pub/gnu/config/

If the version you run (./config.guess) is already up to date, please
send the following data and any information you think might be
pertinent to <config-patches@gnu.org> in order to provide the needed
information to handle your system.

config.guess timestamp = 2004-06-11

uname -m = i686
uname -r = 2.6.11-1.1369_FC4
uname -s = Linux
uname -v = #1 Thu Jun 2 22:55:56 EDT 2005

/usr/bin/uname -p =
/bin/uname -X =

hostinfo =
/bin/universe =
/usr/bin/arch -k =
/bin/arch = i686
/usr/bin/oslevel =
/usr/convex/getsysinfo =

UNAME_MACHINE = i686
UNAME_RELEASE = 2.6.11-1.1369_FC4
UNAME_SYSTEM = Linux
UNAME_VERSION = #1 Thu Jun 2 22:55:56 EDT 2005
configure: error: cannot guess build type; you must specify one
"

so please, can anyone help me to solve this problem