Look for TBB includes/libs in previously selected directories
In the FindTBB module, add the directory of the TBB includes and the directory of the base tbb library to the list of paths to search for TBB includes and libs, respectively. The reason is that TBB has its initial includes and libraries and then has its support libraries. Rather than enter entire paths 9 separate times, this allows you to select the include directory once and one TBB library and the rest will be automatically populated.