Success! ERKALE is now correctly compiling on Ubuntu 14.04. With some corrections to the installation script from Susi and some minor adjustments related to Ubuntu, I can proceed with the packaging of the software to make it easier to distribute among researchers using the Ubuntu platform. While a minor step, it will help with the adoption of the software.
The solution was to adjust the package dependencies as well as setting the appropriate compile flags. The only unresolved issue at the moment is that for some reason, libxc does not seem to compile correctly individually, but that is a minor issue since a preexisting library is available in the software repositories.
The next steps will be to continue with compiling the other required software for this project, finish up the documentation, and prepare configuration for the packaging.