[PATCH] winnt.h: Fix MSVC variants of InterlockedIncrement16 and InterlockedDecrement16.

[Jacek Caban]

On 22/01/2021 20:34, Martin Storsjö wrote:

> On Fri, 22 Jan 2021, Jacek Caban wrote:
>
>> If there is reason for llvm-dlltool to be problematic, we may try to 
>> use llvm-lib (or maybe even let lld-link do that for us).
>
> Not sure if there's a reason for it to be problematic, other than just 
> not a very universally acknowledged tool in itself. (It only 
> implements essentially 1 operation out of the ones that GNU dlltool 
> support as well, generating import libs from def files, needed by the 
> mingw-w64-crt build.)
>
> Reducing the tool interface down from 3 tools to 2 sounds pretty nice 
> though, unless it's too much of a mess.


It indeed sounds nice. I experimented a bit a got it working, I will 
send patches after clean up and some testing. This way we may stop 
requiring llvm-ar and llvm-ranlib as well.


My first attempt didn't work because llvm-link does not support -def 
option, which would allow creating a library from both object files and 
def file in one pass. I got it working with two passes (which is similar 
to how we handle other platforms anyway): first exec lld-link -implib to 
generate importlib, then lld-link /lib to create a static library.


Thanks,

Jacek