The "MakefileMac" files only exist in the *util directories. Those make files
as well as the variables I set in the make files in the various actual program
directories are built assuming GLFW headers are in /usr/local/include and the
libraries are in /usr/local/lib.

You will probably see two warning messages when compiling Controller.c++ in the
SampleProgramSet directories:

warning: gl.h and gl3.h are both included. Compiler will not invoke errors if
using removed OpenGL functionality.
warning: 'gluErrorString' is deprecated: first deprecated in OS X 10.9

These two messages can safely be ignored.

To run on the mac, you will need to do once per login window:

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:../lib