[CMake] add_executable WIN32

[Alin M Elena]

Hi,

I think that I am a little confused about what WIN32 option does in fact.

Is WIN32 supposed to transform main() in a WinMain() entry point (transform
a /subsystem:console -> /subsystem:windows)?
Or 
WIN32 tells compiler: do not downgrade a WinMain to a main()?



Alin


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  Mr. Alin M. ELENA
  Atomistic Simulation Centre
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  Queen's University Belfast
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