Bug#1081515: gtk4: FTBFS with weston 14: many tests fail with --setup=wayland: Failed to open display

[Simon McVittie]

Control: retitle -1 gtk4: FTBFS with weston 14: many tests fail with --setup=wayland: Failed to open display
Control: severity -1 serious

(Please remove -ports from cc in replies, this is no longer believed to
be -ports specific)

On Thu, 12 Sep 2024 at 11:48:21 +0100, Simon McVittie wrote:
> gtk4's test suite is failing on all -ports architectures that have buildds
>
> (/<<PKGBUILDDIR>>/debian/build/deb/testsuite/gtk/spinbutton:12693): Gtk-WARNING **: 17:54:18.469: Failed to open display

It seems that it's now also failing on release architectures, and the
failure seems well-correlated with weston being upgraded to version 14.
The reason this particularly affected -ports is that -ports didn't have
an installable version of weston 13, so by definition all of their recent
gtk4 builds had to be with weston 14.

My current working theory is either a behaviour change in Weston 14,
or Weston 14 is crashing part way through testing and all subsequent
tests fail.

    smcv