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

[Robert Pluim]

>>>>> On Tue, 01 Sep 2020 18:51:47 +0300, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Robert Pluim <rpluim@gmail.com>
    >> Cc: Pouar Dragon <pouar@pouar.net>,  YAMAMOTO Mitsuharu
    >> <mituharu@math.s.chiba-u.ac.jp>,  43148@debbugs.gnu.org
    >> Date: Tue, 01 Sep 2020 17:05:55 +0200
    >> 
    >> >>>>> On Tue, 01 Sep 2020 17:09:18 +0300, Eli Zaretskii <eliz@gnu.org> 
said:
    >> 
    >> >> From: Pouar Dragon <pouar@pouar.net>
    >> >> Date: Mon, 31 Aug 2020 21:34:46 -0500
    >> >> 
    >> >> widgets when building with Xaw and Cairo seem to have missing text,
    >> >> looking like this
    >> >> 
    >> >> problem seems to go away when 5f4e8e2e088de9fb76cb631077c6eddd3219f594
    >> >> is reverted
    >> 
    Eli> Thanks.  I hope Yamamoto-san will be able to take a look at this.
    >> 
    >> 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.

Robert