D24609: libiris: Stop using qt_wrap_cpp()

[Raphael Kubo da Costa]

rakuco added a reviewer: Build System.

REPOSITORY
  R434 Kopete

REVISION DETAIL
  https://phabricator.kde.org/D24609

To: rakuco, #kopete, #build_system
Cc: kopete-devel, himanshuvishwakarma, cochise