[Windows] Define TLS as _Thread_local if compiler supports C11 to avoid warnings with Clang-MinGW

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[Windows] Define TLS as _Thread_local if compiler supports C11 to avoid warnings with Clang-MinGW #1304

Closed Scr3amer closed 10 months ago

Scr3amer commented 10 months ago

Hello hello,

Here I am with a first PR to remove some warnings when compiling on Windows-msys using clang-mingw-ucrt.

This avoids having warnings when compiling with Clang-MinGW on windows. Otherwise I have a warning saying __declspec(thread) is not recognised by clang.exe.

Cheers, Scr3am