This bug was fixed in the package gtk+3.0 - 3.12.2-0ubuntu6
--------------- gtk+3.0 (3.12.2-0ubuntu6) utopic; urgency=medium
* debian/control.in, debian/libgtk-3-0.symbols, debian/rules: - enable the mir backends only on architectures where mir is built -- Sebastien Bacher <email address hidden> Wed, 30 Jul 2014 19:08:26 +0200
This bug was fixed in the package gtk+3.0 - 3.12.2-0ubuntu6
---------------
gtk+3.0 (3.12.2-0ubuntu6) utopic; urgency=medium
* debian/control.in, debian/ libgtk- 3-0.symbols, debian/rules:
- enable the mir backends only on architectures where mir is built
-- Sebastien Bacher <email address hidden> Wed, 30 Jul 2014 19:08:26 +0200