Some example project so not have a include directory, but the build system
referred to it. This resulted in a warning.
#
############################################################################
-include_directories ("include")
include_directories ("../../LayerManagerClient/ilmClient/include")
include_directories ("../LayerSceneDescriptionExample/include")
include_directories ("../../LayerManagerUtils/include")
#
############################################################################
-include_directories ("include")
include_directories ("../../LayerManagerClient/ilmClient/include")
include_directories ("../LayerSceneDescriptionExample/include")
include_directories ("../../LayerManagerUtils/include")