puppetlabs/puppetlabs-passenger — pull request #2 by cblument (2011-11-21 01:49:58+00:00)
Title: passenger-install-apache2-module -a fails

passenger-install-apache2-module -a fails to run because it is not detecting apache:

Checking for required software...

* GNU C++ compiler... found at /usr/bin/g++
* Ruby development headers... found
* OpenSSL support for Ruby... found
* RubyGems... found
# Class: passenger
* Rake... found at /usr/bin/rake
* rack... found
* Apache 2... not found
* Apache 2 development headers... found at /usr/bin/apxs2
* Apache Portable Runtime (APR) development headers... found at /usr/bin/apr-1-config
* Apache Portable Runtime Utility (APU) development headers... found at /usr/bin/apu-1-config

Some required software is not installed.
But don't worry, this installer will tell you how to install them.