I'm looking for a way to use MainLoopReturns when freeglut is present
and not when it isn't.  I could use some help.  I figure that the
implementation has some way to generate that error message, and maybe
we could similarly just do a standard ungraceful exit if freeglut is
missing.<br>

<br>The great thing about MainLoopReturns is that it plays nicely with ghci.&nbsp; Closing a window returns to ghci for more fun.<br><br>Some more info at <a href="http://trac.haskell.org/FieldTrip/ticket/8">http://trac.haskell.org/FieldTrip/ticket/8</a> .<br>
<br>Any ideas?<br><br>Thanks,&nbsp; - Conal<br>