bug#43148: 27.1; Widget text seems to disappear when building with Cairo and Xaw

[Robert Pluim]

>>>>> On Tue, 01 Sep 2020 19:48:41 +0300, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Robert Pluim <rpluim@gmail.com>
    >> Cc: pouar@pouar.net,  43148@debbugs.gnu.org
    >> Date: Tue, 01 Sep 2020 18:13:10 +0200
    >> 
    >> >> Putting on my 'let's simplify' hat, is this really a combination we
    >> >> want to spend time on? Lucid + Xaw + Cairo is decidedly non-mainstream
    >> >> (Iʼm surprised it even builds).
    >> 
    Eli> I wasn't aware that it's a rare configuration.  We definitely support
    Eli> Lucid, right?  If so, is Xaw the problem? and if it is, what are the
    Eli> alternatives that are less "non-mainstream"?
    >> 
    >> Lucid + Xaw is common enough, itʼs mixing in Cairo thatʼs uncommon. To
    >> me, Cairo pretty much implies GTK.

    Eli> Surely, given our troubled experiences with GTK, we don't want to have
    Eli> it as a single toolkit supported in the Cairo build?

I can understand that, but nobody is stepping up to e.g. make Lucid
work well on HiDPI screens, so it will become increasingly
irrelevant. Plus I donʼt see any prospect of Qt being added as a
toolkit under GNU/Linux, so GTK appears to be the only thing we've
got.

Robert