Help!! - GLUT V.S. Motif

Hi gang.
Have a problem - I am programming openGL on a Sun computer using X windows. The topic has arrose on weather we can use GLUT 3.7 or Motif as a ‘helper’ for OpenGL. I am new to the OpenGL world and Motif world as well and did not know if A) GLUT and Motif can work nicely together (ie, can I use some functionality from one and other functionality from another without problems?). B) If not, which is better for portability, performance, ease of use? C) If there are any good books on programming openGL with Motif(if I have to use it).
I myself see that GLUT seems to be the standard way to go and the green book uses many features of GLUT on the X window system, but on the project we are working on Motif is currently being used. My boss has asked what would be the benifits to using GLUT over Motif? And he said that the two don’t work together (Though he has never used GLUT or OpenGL, only Motif). Any and all information on this subject would be appreciated!!!