Bug#1067577: sysprof: B-D on libunwind-dev which is not generally available

[Jeremy Bícha]

On Fri, Dec 19, 2025 at 12:45 PM Jeremy Bícha <jbicha at debian.org> wrote:
> I specifically want to build libsysprof-capture-4-dev everywhere.
> libsysprof will still require libunwind and the sysprof still requires
> gtk4 and libsysprof.

I'm going ahead with this now since I think it will help with
bootstrapping new architectures, like loong64.

Thank you,
Jeremy Bícha