Add instructions to include your own library headers in a project

[birgersp]

Hi,

I think there should be some instructions as to how to include your own library headers in a project. I've already tried

USER_LIB_PATH = /path/to/my/library/headers

Still, I get an error saying "No such file or directory" when including a header file located in the directory.

[rDr4g0n]

Is there a workaround for this?