Apache httpd.h file missing on MacOSX after Mavericks Upgrade (** Updated for Yosemite **)

Question

I am trying to run the passenger-install-apache2-module command and I keep getting this error:

ext/apache2/mod_passenger.c:25:10: fatal error: \'httpd

Answer 1

During the mavericks upgrade several configuration files were saved as previous and replaced by the install including:

/etc/apache2/httpd.conf~previous
/etc/group~previous
/etc/php.ini.default-5.2-previous
/etc/sshd_config~previous
/etc/syslog.conf~previous