Instruction for building on ARM on windows about neovim

[clason]

Just to be clear, cross compilation is not supported. To build for ARM, you need to build on ARM.

[yashamon]

I am on arm

[dundargoc]

Can I get some actual details? What error mesaage arenyou getting?

[yashamon]

Nothing goes wrong, it just cross compiles to x86. Instead of compiling to arm64. I am guessing that is the default for cmake projects, but I don't know.

[justinmk]

VS has a menu with options to choose a target.

[yashamon]

It doesn't allow choosing an arm target. If I create a new desktop app project I can set target to be arm64. If I create a new cmake project this is not allowed, so it might be a current limitation of cmake + visual studio.

I also tried to compile form command line, I can do it with gcc but that gives the wrong target, I don't know how to force arm64 and also it appears gcc currently does not support windows arm64 target. So clang might be the way to go, but how?

[yashamon]

I manually added the following CMake preset:
Mind you I don't know if this is correct.

{
"name": "arm",
"displayName": "arm",
"inherits": "base",
"architecture": {
"value": "arm64",
"strategy": "external"
},
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Release"
}
WIth this the compilation starts, but fails midway.

Severity Code Description Project File Line Suppression State Details
Error CMake Error at C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find Luv (missing: LUV_LIBRARY LUV_INCLUDE_DIR) (Required is at
least version "1.43.0") C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake 230