Adds FPM support to php

Packages describing “fpm” as local USE flag

Package “fpm” Flag Description
www-apps/icingaweb2 Adds FPM support to php
dev-lang/php Enable the FastCGI Process Manager SAPI
app-eselect/eselect-php Enable the FastCGI Process Manager SAPI
net-misc/quagga Enable Forwarding Plane Manager support

All packages providing a “fpm” USE flag (4)