I am uploading a NMU to DELAYED/10 in order to fix this.
The debdiff is attached.
diff -Nru libwmf-0.2.13/debian/changelog libwmf-0.2.13/debian/changelog
--- libwmf-0.2.13/debian/changelog 2023-08-07 01:03:12.000000000 +0200
+++ libwmf-0.2.13/debian/changelog 2023-10-24 13:41:34.000000000 +0200
@@ -1,3 +1,10 @@
+libwmf (0.2.13-1.1) unstable; urgency=medium
+
+ * Non-maintainer upload
+ * Drop unused build dependency libgtk2.0-dev (Closes: #967591)
+
+ -- Bastian Germann <b...@debian.org> Tue, 24 Oct 2023 13:41:34 +0200
+
libwmf (0.2.13-1) unstable; urgency=medium
* New upstream release
diff -Nru libwmf-0.2.13/debian/control libwmf-0.2.13/debian/control
--- libwmf-0.2.13/debian/control 2023-08-07 01:03:12.000000000 +0200
+++ libwmf-0.2.13/debian/control 2023-10-24 13:41:34.000000000 +0200
@@ -10,7 +10,6 @@
libexpat1-dev,
libjpeg-dev,
libpng-dev,
- libgtk2.0-dev,
libgdk-pixbuf-2.0-dev,
Rules-Requires-Root: no
Standards-Version: 4.6.2
