Bug#1021256: gtkmm4: autopkgtest failure: Failed to locate “gtk-logo.webm” in any source directory

[Adrian Bunk]

Source: gtkmm4.0
Version: 4.8.0-2
Severity: serious

https://ci.debian.net/data/autopkgtest/testing/amd64/g/gtkmm4.0/26657367/log.gz

...
autopkgtest [03:40:13]: test build: [-----------------------
+ mktemp -d
+ WORKDIR=/tmp/tmp.aaoH7slRso
+ trap rm -rf /tmp/tmp.aaoH7slRso 0 INT QUIT ABRT PIPE TERM
+ mkdir /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/demowindow.cc demos/gtk-demo/example_appwindow.cc demos/gtk-demo/example_builder.cc demos/gtk-demo/example_colorsel.cc demos/gtk-demo/example_dialog.cc demos/gtk-demo/example_drawingarea.cc demos/gtk-demo/example_dropdown.cc demos/gtk-demo/example_flowbox.cc demos/gtk-demo/example_gestures.cc demos/gtk-demo/example_glarea.cc demos/gtk-demo/example_headerbar.cc demos/gtk-demo/example_iconbrowser.cc demos/gtk-demo/example_iconview.cc demos/gtk-demo/example_images.cc demos/gtk-demo/example_listview_applauncher.cc demos/gtk-demo/example_listview_columnview.cc demos/gtk-demo/example_overlay.cc demos/gtk-demo/example_panes.cc demos/gtk-demo/example_pixbufs.cc demos/gtk-demo/example_shortcuts.cc demos/gtk-demo/example_sizegroup.cc demos/gtk-demo/example_stack.cc demos/gtk-demo/example_stacksidebar.cc demos/gtk-demo/example_textview.cc demos/gtk-demo/example_treeview_editable_cells.cc demos/gtk-demo/example_treeview_liststore.cc demos/gtk-demo/example_treeview_treestore.cc demos/gtk-demo/main.cc demos/gtk-demo/textwidget.cc /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/floppybuddy.gif demos/gtk-demo/gtk-logo-rgb.gif /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/glarea-gl.fs.glsl demos/gtk-demo/glarea-gl.vs.glsl demos/gtk-demo/glarea-gles.fs.glsl demos/gtk-demo/glarea-gles.vs.glsl /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/demos.h demos/gtk-demo/demowindow.h demos/gtk-demo/textwidget.h /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/background.jpg /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/alphatest.png demos/gtk-demo/apple-red.png demos/gtk-demo/gnome-applets.png demos/gtk-demo/gnome-calendar.png demos/gtk-demo/gnome-foot.png demos/gtk-demo/gnome-fs-directory.png demos/gtk-demo/gnome-fs-regular.png demos/gtk-demo/gnome-gimp.png demos/gtk-demo/gnome-gmush.png demos/gtk-demo/gnome-gsame.png demos/gtk-demo/gnu-keys.png /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/example_builder.ui demos/gtk-demo/example_shortcuts.ui demos/gtk-demo/example_shortcuts_boxes.ui demos/gtk-demo/example_shortcuts_builder.ui demos/gtk-demo/example_shortcuts_clocks.ui demos/gtk-demo/example_shortcuts_gedit.ui /tmp/tmp.aaoH7slRso/gtk-demo
+ cp demos/gtk-demo/demo.gresource.xml /tmp/tmp.aaoH7slRso/gtk-demo
+ cd /tmp/tmp.aaoH7slRso
+ cat
+ gtk_demo_deps=gtkmm-3.0 epoxy
+ gtktest_deps=gtkmm-3.0
+ glib-compile-resources --target=gtk-demo/demo_resources.c --sourcedir=gtk-demo --generate-source gtk-demo/demo.gresource.xml
gtk-demo/demo.gresource.xml: Failed to locate “gtk-logo.webm” in any source directory.
+ rm -rf /tmp/tmp.aaoH7slRso
autopkgtest [03:40:14]: test build: -----------------------]
autopkgtest [03:40:14]: test build:  - - - - - - - - - - results - - - - - - - - - -
build                FAIL non-zero exit status 1
...