-isystem for MS Visual Studio C++ Compiler

Question

I usually like to have a lot of warnings enabled when programming. However, some libraries contains code that easily causes warnings (.., python, Qt, ..). When compiling with gc

Answer 1

This now exists under /experimental:external /external:I system_include_path /external:W0. See https://blogs.msdn.microsoft.com/vcblog/2017/12/13/broken-warnings-theory/ for many more details.