Missing definition 'LF_GLFW'

Hey, I'm trying to run the default hello_world example, but it throws this error:
``[LEIF ERROR]: Trying to initialize Leif with GLFW without defining 'LF_GLFW'
Segmentation fault  
(core dumped) ./todo``

Granted, I am on nixOS, but I've linked all of the appropriate libraries I don't see why it shouldn't work.