我的gcc3.0编译不成功

我的gcc3.0编译不成功

Configuring for a i686-pc-linux-gnuoldld host.
Created "Makefile" in /home/fan/gcc-3.0 using "mt-frag"
./configure: cc: command not found
*** The command 'cc -o conftest -g   conftest.c' failed.
*** You must set the environment variable CC to a working compiler.
我用得是rh7.3,是不是我有什么误操作?
该怎么解决?      

ftp://update.redhat.org
中有编译好的rpm