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Add code that will find CGNS tools -- cgnscheck, cgnsdiff, cgnslist, cgnscompress, cgnsconvert, cgnsnames, cgnsupdate.
For each of these that is found, the symbol CGNS_{command_uppercase}_BINARY will be defined. These are useful for tests of applications/routines that access CGNS files -- the testing code can check whether a specific command exists and act accordingly.
The NetCDF and HDF5 Find routines contain similar code and naming conventions.