building under qt5

[VladAlpha]

I am attempting to build this from source in ubuntu (trusty) without using a PPA (I intend to try to install on an Arch machine so this is practice on an easier system to learn how) and having trouble. I wanted to use QT5 so I followed the steps in the install guide for qt5, but cmake fails with vague errors. I looked at CMakeLists.txt and changed line 22 to
SET(WITH_QT5 YES)

this changed the output of cmake . to claim that there is no cmakelists.txt file in the hermes directory. IS there a build step missing? Do I need to manually build Hermes first? Help a newb out.