Cross compile from x86 to arm with MSVC and vulkan

[thewh1teagle]

Hi
I'm trying to build Windows arm64 of whisper.cpp on x86 Windows machine using the following commands:

cmake -B build . -A ARM64 -DGGML_VULKAN=ON
cmake --build build --target main

And it failed with the following error:

  Generating Code...
  Auto build dll exports
     Creating library D:/audio/vibe/whisper-rs/sys/whisper.cpp/build/ggml/src/ggml-cpu/Debug/ggml-cpu.lib and object D:/audio/vibe/whisper-rs/sys/whisper.cpp/build/ggml/src/ggml-cpu/Debug/ggml-cpu.exp
  ggml-cpu.vcxproj -> D:\audio\vibe\whisper-rs\sys\whisper.cpp\build\bin\Debug\ggml-cpu.dll
  Building Custom Rule D:/audio/vibe/whisper-rs/sys/whisper.cpp/ggml/src/ggml-vulkan/vulkan-shaders/CMakeLists.txt
  vulkan-shaders-gen.cpp
  vulkan-shaders-gen.vcxproj -> D:\audio\vibe\whisper-rs\sys\whisper.cpp\build\bin\Debug\vulkan-shaders-gen.exe
  Generate vulkan shaders
  This version of D:\audio\vibe\whisper-rs\sys\whisper.cpp\build\bin\Debug\vulkan-shaders-gen.exe is not compatible with the version of Windows you're running. Check your computer's system information and then contact the software publisher.
C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(254,5): error MSB8066: Custom build for 'D:\audio\vibe\whisper-rs\sys\whisper.cpp\build\CMakeFiles\e6562b2261b3b19b8d67699a1fbab730\ggml-vulkan-shaders.hpp.rule;D:\audio\vibe\whisper-rs\sys\whisp
er.cpp\ggml\src\ggml-vulkan\CMakeLists.txt' exited with code 216. [D:\audio\vibe\whisper-rs\sys\whisper.cpp\build\ggml\src\ggml-vulkan\ggml-vulkan.vcxproj]

It cannot generate the headers since the generated vulkan-shaders-gen.exe is for another platform (cross platform..)
How can I fix it? can we generate shaders for arm on x86?

Related:

• Add first class support for Windows ARM thewh1teagle/vibe#469