debian/changelog

+libinput (1.12.6-2) unstable; urgency=medium
+
+  * Ship /usr/share/libinput in the udeb, since that's now needed by the
+    libinput X driver.
+
+ -- Cyril Brulebois <kibi@debian.org>  Sun, 31 Mar 2019 03:42:45 +0200
+
 libinput (1.12.6-1) unstable; urgency=medium
 
   * New upstream release.

debian/libinput10-udeb.install

 lib/udev
 usr/lib/*/libinput.so.10*
+usr/share/libinput