at each callback action

ENH: CMake now always adds the BUILD_SHARED_LIBS cache entry.  The BUILD_SHARED_LIBRARIES command that used to be used is now deprecated.

ENH: Removing old-style cable commands related to the instantiation functionality which has now been removed from cable.

link directories, if the path is known.

ENH: move EXECUTABLE_OUTPUT_PATH and LIBRARY_OUTPUT_PATH initial creation to after the CMakeLists.txt files have been parsed