www-servers/uwsgi with USE="php" is serving php fine for me with dev-lang/php USE including "-apache2 -cgi -fpm" but virtual/httpd-php insists on some of these flags for php. Adding dev-lang/php:${SLOT}[embed] to virtual/httpd-php fixed this for me. I did try adding a uwsgi dependency but it still wanted me to add USE="fpm" to php. Bug 461300?
dev-lang/php[embed] certainly does not provide httpd-php. So that is out of the question. Depending on uwsgi[php] is also out of the question because uwsgi is unstable.
