if I have the following code:

EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND}
-E copy_if_different ${TEMP_CONFIG_FILE} ${HDF5_BINARY_DIR}/ H5pubconf.h)

How exactly is "Different" determined? By date modified, by content, by some sort of hash?
_________________________________________________________
Mike Jackson                  mike.jack...@bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio

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