bug#5042: 23.1; linum-mode gives incorrect line numbers with narrowed buffers

[Markus Triska]

Mark Lillibridge <mark.lillibridge@hp.com> writes:

>  waiting on your opinion.

In my opinion, a more general solution than only for linum.el would be
best, one that also makes for example line-number-mode show line numbers
that work as expected with M-x goto-line RET also for narrowed buffers.
Ideally, it should work without having to customize each of these
features (and new modes in the future) separately. I think a promising
suggestion (found in this thread) is to generalise narrowing itself,
possibly with a single new customization option instead of many.