[PHP-INSTALL] Installing PHP5

I'm installing PHP5 over top of my current installation (as a module).

Here's the error message:

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root@bagle:~/php-5.0.0# make && make install

Build complete.
(It is safe to ignore warnings about tempnam and tmpnam).

Installing PHP SAPI module:       apache
[activating module `php5' in /etc/apache/httpd.conf]
cp libs/libphp5.so /usr/libexec/apache/libphp5.so
cp: cannot stat `libs/libphp5.so': No such file or directory
apxs:Break: Command failed with rc=1
make: *** [install-sapi] Error 1
root@bagle:~/php-5.0.0#
----------------------------------------------------------------

What's the problem here?
-- 
+---------------------+----------------------------+
| Cody Harris         | NEWS:                      |
| Nova Scotia, Canada | VParse production resumed. |
+---------------------+----------------------------+


-- 
+---------------------+----------------------------+
| Cody Harris         | NEWS:                      |
| Nova Scotia, Canada | VParse production resumed. |
+---------------------+----------------------------+