FYI @rainers

Nice. I think it's failing because cmake builds and runs test executables during the configuration phase that only run on an ARM64 system. Can this be disabled?

Not sure what the difference is, but for me, cross-compilation works when using

"c:\Program Files\Microsoft Visual Studio\2022\Preview\vc\Auxiliary\Build\vcvarsamd64_arm64.bat"

instead of

"c:\Program Files\Microsoft Visual Studio\2022\Preview\Common7\Tools\VsDevCmd.bat" -arch=amd64

Thx, yeah I guess we might have hit https://developercommunity.visualstudio.com/t/vsdevcmd-creates-invalid-ARM64-build-con/10090339.

BTW: I recently also tried the prebuilt libcurl from https://curl.se/windows/, that worked for the phobos unittests, too. I don't remember why we have to compile libcurl ourselves...

Did you test it on x64 or arm64? Great, I don't think they had usable official Windows builds when I last checked, years ago. I don't really remember why we built it ourselves either, but I think one reason was to have a static .lib and the .exp, to enable linking it statically (while still exporting those symbols, so that Phobos can load them from the executable). Looking at the lib dir in the official package, it has 14 .a libs for MinGW, unusable for MSVC.

And for 32-bit x86, we might have had to tweak the compile flags to make it work with the MinGW-based libs (disabling /GS etc.), but most likely just for the static lib again.

I've checked https://vcpkg.io/en/package/curl.html yesterday (wanting to use some prebuilt libcurl too), but looking at the 'Features' tab with all those dependencies made me quickly close the browser tab again... ;)

Sorry for the delay. I tested libcurl successfully on arm64. I guess you are right about the static library build, maybe they even had mingw runtime dependencies back then.