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Subject: Re: [EXTERNAL] Cygwin /usr/bin/clang with Windows Aarch64 support?
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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From: Sebastian Feld via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Sebastian Feld <sebastian DOT n DOT feld AT gmail DOT com>
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On Tue, Jun 17, 2025 at 7:12 PM Jeremy Drake <cygwin AT jdrake DOT com> wrote:
>
> On Tue, 17 Jun 2025, Radek Barton via Cygwin wrote:
>
> > Hello Sebastian.
> >
> > AFAIK, LLVM has no *-pc-cygwin targets support and there is no-one trying to change that.
>
> We're working on that.  LLVM 21.x should be much better in that regard.
> There has been no effort towards aarch64-pc-cygwin though, but also
> nothing that would actively prevent that.

But recently there came in a flurry of commits for aarch64 support in
cygwin1.dll.

Did the status change?

>
> > Does Cygwin /usr/bin/clang has Aarch64 support, to compile native
> > Windows Aarch64 binaries if Cygwin-x86-64 runs on Windows Aarch64?
>
> I don't know about the old unmaintained version currently available, but
> we're working on getting LLVM/clang 20.x packaged that has all the
> architectures enabled, and can be used to cross-compile for
> aarch64-w64-mingw32 with https://github.com/mstorsjo/llvm-mingw
> ./build-all --host-clang
>

Did anything change yet?

Sebi
-- 
Sebastian Feld - IT security consultant

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