And I wish there was a way to hide this load of crap behind a neat
macro_optional_find_package and macro_log_feature so the cmake run
doesn't get polluted with scary nonsense about optional packages,
that then don't get listed at the end of the run, like our other
optional packages.

Verbose blather, bah.

CMake Warning at CMakeLists.txt:226 (find_package):
  By not providing "FindQt5DBus.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5DBus", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5DBus"
  (requested version 5.3.0) with any of the following names:

    Qt5DBusConfig.cmake
    qt5dbus-config.cmake

  Add the installation prefix of "Qt5DBus" to CMAKE_PREFIX_PATH or set
  "Qt5DBus_DIR" to a directory containing one of the above files.  If
  "Qt5DBus" provides a separate development package or SDK, be sure it has
  been installed.

CMake Warning at cmake/kde_macro/MacroOptionalFindPackage.cmake:32 (find_package):
  By not providing "FindKF5KIO.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "KF5KIO", but
  CMake did not find one.

  Could not find a package configuration file provided by "KF5KIO" (requested
  version 5.7.0) with any of the following names:

    KF5KIOConfig.cmake
    kf5kio-config.cmake

  Add the installation prefix of "KF5KIO" to CMAKE_PREFIX_PATH or set
  "KF5KIO_DIR" to a directory containing one of the above files.  If "KF5KIO"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  CMakeLists.txt:246 (macro_optional_find_package)

CMake Warning at cmake/kde_macro/MacroOptionalFindPackage.cmake:32 (find_package):
  By not providing "FindKF5Crash.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "KF5Crash",
  but CMake did not find one.

  Could not find a package configuration file provided by "KF5Crash"
  (requested version 5.7.0) with any of the following names:

    KF5CrashConfig.cmake
    kf5crash-config.cmake

  Add the installation prefix of "KF5Crash" to CMAKE_PREFIX_PATH or set
  "KF5Crash_DIR" to a directory containing one of the above files.  If
  "KF5Crash" provides a separate development package or SDK, be sure it has
  been installed.
Call Stack (most recent call first):
  CMakeLists.txt:248 (macro_optional_find_package)