Description:
------------
Some of us would like to have the possibility to statically link the libevent 
into the php-fpm binary in order to simplify the deployment aka put just a single 
binary to the production machines. The configure fails to pick up the static 
library version of libevent.

Test script:
---------------
cd ~/libevent-1.4.14b
./configure --prefix=/usr/local/libevent-1.4.14b --disable-shared
make ; make install

cd ~/php-5.3.3
./configure --enable-fpm --with-libevent-dir=/usr/local/libevent-1.4.14b ...


Expected result:
----------------
Successful configuration and build.

Actual result:
--------------
checking for libevent >= 1.4.11 install prefix... configure: error: Could not 
find libevent >= 1.4.11 in /usr/local/libevent-1.4.14b