Buidling simple applications under OSX is similar to building them
under linux with the following changes:

The glut.h file is stored under a GLUT directory so the include
statement in your application should be

#include <GLUT/glut.h>

The compiler options should be

-framework OpenGL -framework GLUT -framework Foundation

Thus a very simple compile would be

gcc simple.c -framework OpenGL -framework GLUT -framework Foundation -o simple

Make sure that the three frameworks have been installed.

If you use the Xcode interface, just add the two frameworks from the 
add menu.

See Kuehne and Sullivan, OpenGL Programming on the Mac, Addison-Wesley, for
information about using the various version of OpenGL available on the Mac
and on using other window interfaces.