Re: git: 49d684369c66 - main - libthr: filter rather than link with libsys

On  7 Feb, Brooks Davis wrote:
> The branch main has been updated by brooks:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=49d684369c6682eebca325c55a6c96b7c03f5aeb
> 
> commit 49d684369c6682eebca325c55a6c96b7c03f5aeb
> Author:     Brooks Davis <brooks@FreeBSD.org>
> AuthorDate: 2024-02-07 19:38:16 +0000
> Commit:     Brooks Davis <brooks@FreeBSD.org>
> CommitDate: 2024-02-07 19:50:47 +0000
> 
>     libthr: filter rather than link with libsys
>     
>     The allows gcc + GNU ld to link programs with -m32 -pthread without
>     erroring out due to _umtx_op_err being undefined (unless -lsys is added
>     to the link command.
>     
>     We now always link _umtx_op_err into libthr (not just when it's static)
>     and filter it with libsys so we call that implementation.  The dynamic
>     implementations (at least the assembly ones) should likely become stubs
>     as a further refinement.

Thanks!  I ran into this problem early this week when lang/gcc12 stopped
bulding and I spent a bunch of time bisecting.