gcc can not find cc1

[lulu he <loloseed@xxxxxxxxx>]

Hi,

I've successfully installed gcc4.3.3 on my server.

I write a simple hello.c,and
gcc -o hello hello.c

an error was encounted:
gcc: error trying to exec 'cc1': execvp: no such file or directory

But I can see cc1 in ..../libexec/gcc/x86_64-unknown-linux-gnu/4.3.3.

It seems gcc could not find cc1.

Help will be appreciated.

Thanks.