Implementing Larry Ramey's "glutExit" feature (see e-mails from him on 11/9/05, 6/28/06)

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@724 7f0cb862-5218-0410-a997-914c9d46530a

freeglut/freeglut/include/GL/freeglut_ext.h

@@ -83,6 +83,7 @@
  */
 FGAPI void    FGAPIENTRY glutMainLoopEvent( void );
 FGAPI void    FGAPIENTRY glutLeaveMainLoop( void );
+FGAPI void    FGAPIENTRY glutExit         ( void );
 
 /*
  * Window-specific callback functions, see freeglut_callbacks.c

freeglut/freeglut/src/freeglut_init.c

@@ -652,6 +652,14 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
     }
 }
 
+/*
+ * Undoes all the "glutInit" stuff
+ */
+void FGAPIENTRY glutExit ( void )
+{
+  fgDeinitialize ();
+}
+
 /*
  * Sets the default initial window position for new windows
  */