Fix compilation issues with clang without msvc linker

[tstndeemkssz]

What's this all about?

Fixes: #0000 ⬅️ Be sure to refer to an existing issue here!

I do cross-compiling for Windows binaries on Linux through clang 20
https://github.com/trcrsired/windows-msvc-sysroot

Here are some the issues I have found for clang x86_64/aarch64-windows-msvc for clang.

I am also adding dllimport to the imports too

[sylveon]

From a cursory read these changes most likely break clang-cl on Windows.

[tstndeemkssz]

From a cursory read these changes most likely break clang-cl on Windows.

Hello. Thank you. clang-cl also supports asm renaming things. clang and GCC they both support them even clang is targeting msvc.

I am using this one:
https://github.com/[trcrsired/windows-msvc-sysroot](https://github.com/trcrsired/windows-msvc-sysroot/tree/main)/tree/main
https://github.com/trcrsired/llvm-releases/releases/tag/llvm20-20241124

We have done for years for directly renaming even for clang-cl
https://github.com/cppfastio/fast_io/blob/next/include/fast_io_hosted/platforms/win32/apis.h

There are some questions for me on how the dllimport naming works on arm64ec, which is why I haven't changed that part yet.

[dmachaj]

From a cursory read these changes most likely break clang-cl on Windows.

I triggered the CI to run. Your guess was a good one. Clang-Cl seems to be broken in cpp17 mode (cpp20 seems to be passing).

[tstndeemkssz]

From a cursory read these changes most likely break clang-cl on Windows.

I triggered the CI to run. Your guess was a good one. Clang-Cl seems to be broken in cpp17 mode (cpp20 seems to be passing).

Hi. I have checked that, and I think it is not the reason for C++20. I got the symbol wrong for i686.

#if !defined(__clang__)
#define WINRT_IMPL_LINK(function, count) __asm__(#function "@" #count)
#define WINRT_IMPL_LINK2(function1, function2, count) __asm__(#function2 "@" #count)
#else
#define WINRT_IMPL_LINK(function, count) __asm__("_" #function "@" #count)
#define WINRT_IMPL_LINK2(function1, function2, count) __asm__("_" #function2 "@" #count)
#endif

This should be correct now. Can you start CI again? Thank you

[dmachaj]

Doesn't this new block need the WINRT_IMPL_EXTERN_C_BEGIN / WINRT_IMPL_EXTERN_C_END treatment too?

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[github-actions]

This pull request is stale because it has been open 10 days with no activity. Remove stale label or comment or this will be closed in 5 days.

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