bug#51704: 29.0.50; set-fontset-font do not work well with :weight 'normal of font-spec

[Lars Ingebrigtsen]

tumashu  <tumashu@163.com> writes:

> medium work.
>
> Does old emacs support 'medium?

Yes, in older Emacsen, `medium' is an alias for `normal'.  This was
split up since the font spec allows two different font weights here (and
`medium' is heavier than `normal'), and Emacs didn't have a way to
choose the actual `normal' font.

The problem is that if you have a font that doesn't have the now-lighter
`normal' font, Emacs won't find the right spec.  I'm not sure whether
there's any way to make a fallback of some kind here work...  I'm
amending the text in etc/NEWS and moving it to the "incompatible"
section, though.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no