CMAKE_CL_64

From Get docs
Cmake/docs/3.21/variable/cmake cl 64


CMAKE_CL_64

Discouraged. Use CMAKE_SIZEOF_VOID_P instead.

Set to a true value when using a Microsoft Visual Studio cl compiler that targets a 64-bit architecture.

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https://cmake.org/cmake/help/v3.21/variable/CMAKE_CL_64.html