[3.6.2 zesty] regression: include could not find load file: EnableCoverageReport

The new cmake in zesty breaks several package builds, e. g. in https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/landing-022/+packages.

https://launchpadlibrarian.net/290302573/buildlog_ubuntu-zesty-ppc64el.indicator-display_0.1+17.04.20161021-0ubuntu1_BUILDING.txt.gz

CMake Error at CMakeLists.txt:79 (include):
  include could not find load file:

    EnableCoverageReport

-- /usr/share/upstart/sessions is the Upstart Jobs File install dir
-- /etc/xdg/autostart is the XDG Autostart install dir
-- /usr/share/upstart/xdg/autostart is the Upstart XDG autostart override dir
-- /usr/lib/systemd/user is the systemd user unit file install dir
-- /usr/share/upstart/systemd-session/upstart is the Upstart override Job File for systemd dir
-- /usr/share/unity/indicators is the Unity Indicator install dir
CMake Error at tests/CMakeLists.txt:2 (find_package):
  By not providing "FindGMock.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "GMock", but
  CMake did not find one.

  Could not find a package configuration file provided by "GMock" with any of
  the following names:

    GMockConfig.cmake
    gmock-config.cmake

These packages still built fine yesterday. I'm mostly unable to decipher the build log, so sorry if that's not what the actual error is.