Comment 5 for bug 1749957

From log:

CMake Error at plugins/unityshell/CMakeLists.txt:1 (find_package):
  By not providing "FindCompiz.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Compiz", but
  CMake did not find one.

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

    CompizConfig.cmake
    compiz-config.cmake

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