This bug was fixed in the package metacity - 1:3.18.1-1ubuntu4
--------------- metacity (1:3.18.1-1ubuntu4) xenial; urgency=medium
* Fix build with updated glib. * Multiarchify the library packages. LP: #1508597.
-- Matthias Klose <email address hidden> Fri, 05 Feb 2016 09:51:59 +0100
This bug was fixed in the package metacity - 1:3.18.1-1ubuntu4
---------------
metacity (1:3.18.1-1ubuntu4) xenial; urgency=medium
* Fix build with updated glib.
* Multiarchify the library packages. LP: #1508597.
-- Matthias Klose <email address hidden> Fri, 05 Feb 2016 09:51:59 +0100