Re: delete-windows-on

[martin rudalics]

> 1. Why is this defined in C? Is that needed for performance reasons? If not, 
why
> not move it to Lisp?

On my local Emacs I've already moved `delete-window' to window.el and
intend to eventually move all window_loop based functions including
`delete-windows-on' to window.el too (also because I don't like to call
Elisp functions from C).  But since this is merely a tedious rewrite
operation it has fairly low priority on my list.  In any case, there
won't be a noticeable performance penalty when moving these functions
to Elisp.

martin