Control: reassign -1 debhelper
Control: retitle -1 debhelper: Causes substvar warnings for dbgsym packages
Hi!
On Sun, 2025-01-26 at 13:42:26 +0100, Guillem Jover wrote:
> On Sun, 2025-01-26 at 11:07:39 +0100, Niels Thykier wrote:
> > Package: dpkg-dev
> > Version: 1.22.11
> > Severity: minor
> > X-Debbugs-Cc: ni...@thykier.net
>
> > When the package is built, I get the following warnings:
>
> > > dh_gencontrol
> > > dpkg-gencontrol: warning: package cross-exe-wrapper: substitution
> > > variable ${DEB-HOST-ARCH} unused, but is defined
> > > dpkg-gencontrol: warning: package cross-exe-wrapper: substitution
> > > variable ${DEB-HOST-GNU-TYPE} unused, but is defined
> > > dh_md5sums
>
> > But the generated .deb does seem to have used the substvar:
> >
> > > $ dpkg-deb -f ../cross-exe-wrapper_${VERSION}_amd64.deb Description
> > > Wrapper for executing binaries from other architectures
> > > Provides a tool x86_64-linux-gnu-cross-exe-wrapper that can be
> > > used to run amd64 ELF executables on the current CPU
> > > employing emulation technology if required.
>
> Ah, that looked very surprising indeed. Started to check what might
> have broken on the dpkg-dev side, but then built the package with
> DH_VERBOSE=1 and -j1, and got this invocation sequence:
>
> dpkg-gencontrol -pcross-exe-wrapper -ldebian/changelog \
> -Tdebian/cross-exe-wrapper.substvars -cdebian/control \
> -Pdebian/.debhelper/cross-exe-wrapper/dbgsym-root \
> -UPre-Depends -URecommends -USuggests -UEnhances -UProvides \
> -UEssential -UConflicts -DPriority=optional -UHomepage \
> -UImportant -DAuto-Built-Package=debug-symbols -UProtected \
> -UBuilt-Using -UStatic-Built-Using \
> -DPackage=cross-exe-wrapper-dbgsym \
> "-DDepends=cross-exe-wrapper (= \${binary:Version})" \
> "-DDescription=debug symbols for cross-exe-wrapper" \
> -DBuild-Ids=edede37420ad37957c6efc1b90ec8747e296da5a \
> -DSection=debug -UReplaces -UBreaks
>
> And then:
>
> dpkg-gencontrol -pcross-exe-wrapper -ldebian/changelog \
> -Tdebian/cross-exe-wrapper.substvars -cdebian/control \
> -Pdebian/cross-exe-wrapper
>
> The first is the one generating the warnings, because its overridden
> Description does not use the substvars.
>
> This seems to be part of debhelper automatic debug package generation,
> where it's trying to share most of the parent package to generate the
> automatic one, but where the substvar inheritance does not seem to be
> playing nice.
>
> I don't think this is a problem in dpkg-dev, I guess it could be
> considered a bug in debhelper? (If so, feel free to reassign, or to
> close. :)
Ok, let me reassign to get it out of the way (for dpkg), and then you
can deal with it however you prefer. :)
Thanks,
Guillem
