As far as I can tell "vcvarsarm64_arm.bat" does not exist. Can you show what this fixes?

At least it exists in latest MSVC toolchain.

As far as I can tell "vcvarsarm64_arm.bat" does not exist. Can you show what this fixes?

Trying to install arm-windows packages on the new windows-11-arm github runners failed.

At least it exists in latest MSVC toolchain.

Hmmmm can you show what boxes you checked in the VS installer? (I grepped the entire Visual Studio sources and did not see arm64_arm.bat anywhere)

At least it exists in latest MSVC toolchain.

Hmmmm can you show what boxes you checked in the VS installer? (I grepped the entire Visual Studio sources and did not see arm64_arm.bat anywhere)

I don't have a WoA PC on hand, so I didn't use VS installer.

I use https://github.com/mstorsjo/msvc-wine to download MSVC toolchain on github windows-11-arm runners. vcvarsarm64_arm.bat is from package Microsoft.VisualCpp.Tools.HostARM64.TargetARM, which is a dependency of Microsoft.VisualStudio.Component.VC.Tools.ARM on ARM64 host.

I also checked the windows-11-arm runners, C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsarm64_arm.bat does exist.

I don't have a WoA PC on hand

I don't either, that's part of the problem. :/ We need to understand how we can verify the correctness of this before we can merge it.

I use https://github.com/mstorsjo/msvc-wine to download MSVC toolchain on github windows-11-arm runners. vcvarsarm64_arm.bat is from package Microsoft.VisualCpp.Tools.HostARM64.TargetARM, which is a dependency of Microsoft.VisualStudio.Component.VC.Tools.ARM on ARM64 host.

Hmmmm I see Microsoft.VisualCpp.Tools.HostARM64.TargetARM referenced but not where it comes from :(

...

Nevermind, this stuff was in another repo:

Thanks!