Error installing APC

[optrexnz]

Just wondered if anyone can help me with the error I am getting when installing APC onto my Centos 5 64bit VPS

# sudo pecl install apc

downloading APC-3.0.19.tgz ...

Starting to download APC-3.0.19.tgz (115,735 bytes)

.........................done: 115,735 bytes

47 source files, building

running: phpize

Configuring for:

PHP Api Version: 20041225

Zend Module Api No: 20060613

Zend Extension Api No: 220060519

1. Use apxs to set compile flags (if using APC with Apache)? : yes

1-1, 'all', 'abort', or Enter to continue:

building in /var/tmp/pear-build-root/APC-3.0.19

running: /root/tmp/APC/configure --with-apxs

checking for egrep... grep -E

checking for a sed that does not truncate output... /bin/sed

checking for cc... cc

checking for C compiler default output file name... a.out

checking whether the C compiler works... configure: error: cannot run C compiled programs.

If you meant to cross compile, use `--host'.

See `config.log' for more details.

ERROR: `/root/tmp/APC/configure --with-apxs' failed

I cant seem to find the file it mentions config.log which doesn't help.