* free lib handles on finalization

glBitmap.pas

@@ -8559,8 +8559,15 @@ initialization
 finalization
   TFormatDescriptor.Finalize;
 
+{$IFDEF GLB_NATIVE_OGL}
+  if Assigned(GL_LibHandle) then
+    glbFreeLibrary(GL_LibHandle);
+
 {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+  if Assigned(GLU_LibHandle) then
+    glbFreeLibrary(GLU_LibHandle);
   FreeAndNil(InitOpenGLCS);
 {$ENDIF}
+{$ENDIF}  
 
-end.
+end.