/WX (Treat Linker Warnings as Errors) | Microsoft Docs
Aug 03, 2021 · By default, /WX is not in effect. To treat linker warnings as errors, specify /WX. /WX:NO is the same as not specifying /WX. To set this linker option in the Visual Studio development environment Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
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