i want to install phusion passenger together with ruby enterprise edition on x86_64 SMP ubuntu 10.04. the recommended option seems to be
apache2-mpm-worker
but when i run passenger-install-apache2-module
the installation routine of phusion passenger complains
To install Apache 2 development headers: Please run apt-get install apache2-prefork-dev as root.
why do we need prefork-dev here, if we clearly want to run passenger with mpm-worker apache2? any suggestions? is there a worker-dev package?