Is there any flag or setting I can turn on in CMake to have it print a warning when in the course of a CMake configure a macro definition is being re-defined? Occasionally a sub-configure that I've tried to set up as being independent will have an older copy of a macro that is missing features and the symptoms can look like mysterious failures in the new version I'm working on - an optional warning that a macro definition is getting stomped on would be very helpful, if there is any way to do this in CMake.
Thanks, CY
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