Re: master d8da850: Document cairo-related fallout to font-backend settings

[Robert Pluim]

>>>>> On Tue, 21 Jan 2020 16:38:01 +0100, Robert Pluim <address@hidden> said:

>>>>> On Tue, 21 Jan 2020 06:54:36 -0800, "T.V Raman" <address@hidden> said:
    TVR> Stefan Kangas <address@hidden> writes:
    TVR> Also, perhaps update frames.texi to indicate that ftcr and ftcrhb are
    TVR> mutually incompatible. Having both doesn't appear to hurt right now, 
but
    TVR> might perhaps cause issues later?

    Robert> I updated frames.texi on emacs-27 earlier in the week along those
    Robert> lines. Having both doesnʼt hurt, they're not incompatible, you just 
can
    Robert> only have one or the other (and you canʼt switch between them 
dynamically).

Let me qualify that: you can in fact use the ftcr font backend even if
your emacs is built with HarfBuzz, but you need to make that decision
at frame creation time. Iʼll reword NEWS and frames.texi to that
effect.

Robert