RE: C-x SPC : rectangle-mark-mode or gud-break?

[Drew Adams]

> >> I know I am opening up a can of worms here, but I am going to argue that
> >> `C-x SPC' be changed back to `gud-break'.
> >
> > 1. `gud-break' should never have been given a global binding on prefix
> >    `C-x'.  It is fine for it to have a binding on `gud-key-prefix', i.e.,
> >    `C-x C-a'.  Why does it need a global binding?  And if it really does,
> >    for some reason, why sacrifice such an important global prefix key as
> >    `C-x' for it?
> 
> Nothing other than the fact that the keybinding has been around since at
> least Emacs 18.58 (the first version I regularly used).

Not all bad decisions are recent. ;-)

More seriously, whether or not it might have made some sense to spend
a global keymap key on this in the 1980s, it does not make sense to do
that now, IMO.  What's wrong with using `gud-key-prefix' as the prefix
key for this?

> It's had a lot of time for people to get used to it.

And?