cmake - Check for working C compiler: "cl.exe - skipped" : Visual Studio 2019

Question

When running my build script that uses cmake I am getting the following output during the build process:

**********************************************************************
** Visual Studio 2019 Developer Command Prompt v16.7.5
** Copyright (c) 2020 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
-- The C compiler identification is MSVC 19.27.29112.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Professional/VC/Tools/MSVC/14.27.29110/bin/Hostx64/x64/cl.exe - skipped

I've seen in another thread that this isn't an error, and my code goes onto compile until a different error, but why would the output be "skipped" instead of "works"?

Answer 1

That's normal in newer CMake versions as the test is skipped because the compiler is known to work because it was able to determine the ABI.

Refer to https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4789