Re: Help needed for cross-building tsocks

[Helmut Grohne <helmut@subdivi.de>]

Hi Nilesh,

On Sun, Aug 31, 2025 at 08:47:41PM +0530, Nilesh Patra wrote:
> I've tried this which seems to do the trick but is manual work -- does this look ok to you?

Functionally, yes, but I concur that there should be a better solution.

> execute_before_dh_gencontrol:
>         for pkg in libc6-dev libc6.1-dev libc0.3-dev musl-dev; do \
>                 if [ "$(DEB_BUILD_ARCH)" != "$(DEB_HOST_ARCH)" ]; then \
>                         pkg="$$pkg:$(DEB_HOST_ARCH)"; \

You may unconditionally append :$(DEB_HOST_ARCH). It'll work in the
native case.

>                 fi; \
>                 pkgname=`dpkg-query -W -f='$${source:Package}' $$pkg`; \
>                 version=`dpkg-query -W -f='$${source:Version}' $$pkg`; \
>                 if [ -n "$$version" ]; then \
>                         echo "$(DEB_SOURCE):Built-Using=$$pkgname (= $$version)" >> debian/$(DEB_SOURCE).substvars; \
>                         break; \
>                 fi; \
>         done
> 
> OTOH, I happened to notice the same libc-dev-bin B-U problem in a few other packages as well [1]. I wonder
> if there could be a better solution for all of these.

I suggest reporting a bug against dh-builtusing. This really should be
easier and dh-builtusing sounds like the place to make it easy. Maybe
the maintainer has some ideas? One way forward could be enabling
dh-builtusing to deal with virtual packages.

Moving forward with the tricky manual work for one package may still be
beneficial to provide a use case dh-builtusing.

Helmut