C++ example InstructionSet.cpp does not run on Windows XP: LTL build imports NT6 API call

[wesinator]

Example https://learn.microsoft.com/cpp/intrinsics/cpuid-cpuidex?view=msvc-170#example

The statically linked binary targeting msvcrt 5.1 (size ~62kb) does not run on NT 5.1 / Windows XP, because it still tries to load a NT6+ only API call. (https://learn.microsoft.com/windows/win32/api/winnls/nf-winnls-lcidtolocalename#requirements) This code works if:

• the binary is compiled with /MD and using the last VC runtime for XP OR
• statically using v141_xp and Visual C++ 2017 build toolchain (that binary is ~180kb).

Thanks,

[mingkuang-Chuyu]

please install YY-Thunks and use /MT

VC-LTL + YY-Thunks, use them together to be compatible with Windows XP.

[mingkuang-Chuyu]

In order to reduce the file size of the VC-LTL library, starting from version 5.0, VC-LTL is no longer responsible for API dependency issues. (Have you noticed that VC-LTL 5.0 is only one-tenth the size of the previous version?)

That's why we need to use YY-Thunks, which focuses on solving these API dependency problems.

[wesinator]

Thanks - I was confused because the description in the "About" section of YY-Thunks only said "XP RTM"

[mingkuang-Chuyu]

Thanks - I was confused because the description in the "About" section of YY-Thunks only said "XP RTM"

I'm sorry that the documentation is incorrect.