Bug#980701: sasview: FTBFS: error: [Errno 2] No such file or directory: '/<<PKGBUILDDIR>>/docs/sphinx-docs/build/latex/SasView.pdf'

[Drew Parsons]

Package: sasview-doc
Followup-For: Bug #980701

The cutting point is:

> reading sources... [ 16%] dev/sasview-api/sas.qtgui.UnitTesting
> qt.qpa.xcb: could not connect to display 
> qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
> This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
> 
> Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.



On my system it reports

  reading sources... [ 16%] dev/sasview-api/sas.qtgui.UnitTesting
  Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
  reading sources... [ 16%] dev/sasview-api/sas.qtgui.Utilities
  reading sources... [ 17%] dev/sasview-api/sas.sascalc
  reading sources... [ 17%] dev/sasview-api/sas.sascalc.calculator


Reprodicibilty tests last succeeded on 2020-12-27.  Something must have
changed in the environment after that, though it wasn't Qt.

Probably the best solution is to figure out how to activate the
"offscreen" platform plugin to build with.