I take it back. The window is sizable and I guess the entry for cb_release_type is a "-g" not a file.
Yes, yes - its not nice, we are working on it. We need to make it a bit smarter.
The reason was that one can easily switch between debug (-g) and optimised (-O2) builds by just changing the value of this GCV. Maybe a bit over-done... I'll think about it...
