Well in that case, GLFW seems to run fine on OSX. See http://glfw.sourceforge.net

GLUT is portable but has many different implementations. I already had a couple of nasty bugs using it (different keyboard handling, incorrect joystick support, etc). So it's best to always include the GLUT library that was used when you did your testing

Jules Bean wrote:

..at the cost of being less portable, since it doesn't run "natively" on OSX, requiring the X layer which not all users will have installed. Swings and roundabouts.

OSX-native Gtk is not that far away though.

But, that's certainly one of the reasons I'm using plain GLUT at the moment.

Jules