sharadhr wrote:

There are a lot of unfounded accusations with which I will not engage. There 
are practical reasons for why an organisation will not take on a dependency or 
stewardship of a certain project, but they are not relevant here.

My points about pacman was to demonstrate how easy setting up a MinGW 
cross-compile is: it's literally two commands on most Linux systems: download 
the sysroot either as an archive or as a system package, download the compiler, 
compile. Done. 

___

All I am saying is—please write some documentation, and enhance the existing 
documentation for `/winsysroot`. It is high time _someone_ provided decent 
documentation for cross-compilation given at least two hosts and two targets, 
without users having to hunt through blog posts, old feature and merge 
requests, and scattered projects on GitHub (not just yours, mind you; this 
applies to _all_ the 'winsysroot' projects mentioned in this thread).

In particular, I would like to see:

- how users should reflow from `C:\Program Files\Microsoft Visual 
Studio\<version>\<edition>\VC` and `C:\Program Files (x86)\Windows Kits\10` to 
`sysroot/*` without any script or helper, because if we support a flag that 
expects a certain layout, we should support users by telling them how to 
prepare such a layout without any additional dependency;

- how users can use some libc++ with this new flag, and ideally why 
`/winsysroot` doesn't allow them to do so without massive pain;

- an exemplar demonstration for how all of this can be used to cross-compile, 
and compare with the following scenarios: `clang-cl /winsysroot`, `clang++ 
--target <target> -Xmicrosoft-windows-sys-root` etc. 

I hope this is considered, because I feel there's no point in providing a 
feature without _any_ documentation. Once this is merged this entire issue will 
disappear from search engines.

https://github.com/llvm/llvm-project/pull/96417
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