Bug#979306: QVTKOpenGLWidget.h: No such file or directory

[Drew Parsons]

Package: libvtk9-qt-dev
Version: 9.0.1+dfsg1-8
Followup-For: Bug #979306

As far as avogadrolibs goes, replacing QVTKOpenGLWidget with
QVTKOpenGLStereoWidget seems to be sufficient to remove the
deprecated function (though it will also need help to find
/usr/include/vtk-9.0/).

However I suggest nevertheless that QVTKOpenGLWidget.h should still be
provided by libvtk9-qt-dev.  It's deprecated,
https://vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html, but that
doesn't mean it's eliminated yetx.

The point of the deprecated functions is provide client applications
notification and time to upgrade to the new API. So the header still
needs to be provided by libvtk9-qt-dev in order to achieve that.

Doesn't the upstream build system still install the deprecated header?