royal juniper
I've been working through this here: https://github.com/ziglang/zig/issues/12703 , but it seems like building llvm with MSVC (https://github.com/ziglang/zig/wiki/Building-Zig-on-Windows#option-2-using-cmake-and-microsoft-visual-studio) doesn't work atm because of conflicting C libs (zig tries to link the mingw crt2 while llvm pulls in libcmt). I think the CI must build llvm with a different compiler?
bright quiver
CI builds LLVM with zig cc
Which is required because of different C++ calling conventions between compilers
Which would be an issue even if you could fix the linking errors
royal juniper
It didn't use to be that way, at least in 0.9.1 and part way through the pre-10 release I was able to follow the wiki directions to build it with MSVC
ie. build llvm with MSVC, then build zig from scratch via MSVC
So I'm wondering if it was decided to not support that anymore, or of it regressed (I noticed it when I made that issue)
If indeed it's not intended to work then the wiki should probably not indicate that it's possible
I did try building with -msvc instead of -gnu for zig build itself, but hit a bunch of compile errors instead.
bright quiver
It's possible you could build LLVM's C bindings with MSVC and then link them into the Zig part of the compiler, but it's much more annoying to do
I'd recommend building LLVM with zig cc for best results
royal juniper
This did use to work though, and it would be nice to be able to use only msvc to get things going
I'm working on trying to get things to build with the msvc target, there are issues building libcxx and libcxxabi which I'm trying to understand
bright quiver
It's possible you can still use msvc to build stage1, which you could then use to rebuild llvm and build stage2
Have a look at the zig-bootstrap repo and see what it does
Though that may only work on Linux? Not sure
Ah, yeah, requires posix
If you can build LLVM and Clang using MSVC, you should be able to bootstrap Zig with it
But honestly it may be simpler to just get a clang build for windows and bootstrap from there
Or to bootstrap on WSL and cross compile, meaning you can use zig-bootstrap to handle the build process for you