dpkg 1.21.15ubuntu2 source package in Ubuntu

Changelog

dpkg (1.21.15ubuntu2) lunar; urgency=medium

  * Merge from Debian unstable. Remaining changes:
    - Change native source version/format mismatch errors into warnings
      until the dust settles on Debian bug 737634 about override options.
    - Add DPKG_UNTRANSLATED_MESSAGES environment check so that higher-level
      tools can get untranslated dpkg terminal log messages while at the
      same time having translated debconf prompts.
    - Special-case arm{el,hf} ELF objects in Shlibs/Objdump.pm for multilib.
    - Map unqualified package names of multiarch-same packages to the native
      arch instead of throwing an error, so that we don't break on upgrade
      when there are unqualified names stored in the dpkg trigger database.
    - Apply a workaround from mvo to consider ^rc packages as multiarch,
      during the dpkg consistency checks. (see LP: 1015567 and 1057367).
    - dpkg-gencontrol: Fix Package-Type override handling for ddeb support.
    - Add Zstd compression and decompression support for binary packages.
    - scripts/Dpkg/Vendor/Ubuntu.pm: set 'nocheck' in build options by default
      on Ubuntu/riscv64.  Overridable in debian/rules with
      'DEB_BUILD_OPTIONS := $(filter-out nocheck,$(DEB_BUILD_OPTIONS))'.
    - scripts/Dpkg/Vendor/Ubuntu.pm, scripts/dpkg-buildpackage.pl:
      Set 'nocheck' for riscv64 using a new 'update-buildopts' hook and make
      it effective with old style debhelper, too.
    - Dpkg::Vendor::Debian: Add new lto feature in new optimize area, taken
      from
      https://git.hadrons.org/cgit/debian/dpkg/dpkg.git/log/?h=next/1.21.x
    - dpkg-dev: Depend on lto-disabled-list.
    - dpkg-buildflags: Read package source names from lto-disabled-list,
      to build without lto optimizations. When adding a source package to the
      list, please also file a launchpad issue and tag it with 'lto'.
    - Turn on LTO optimizations on amd64, arm64, ppc64el, s390x.
      See https://wiki.ubuntu.com/ToolChain/LTO for more information.
    - scripts/Dpkg/Vendor/Ubuntu.pm: set 'noudeb' build profile by
      default. Override this by exporting DEB_BUILD_PROFILE='!noudeb' which
      will be stripped, and thus building with udebs.
    - build: Switch default dpkg-deb compression from xz to zstd.
      Keep compressing dpkg.deb with xz to help bootstrapping on non-Ubuntu
      systems.
    - Don't install dpkg-fsys-usrunmess script.

 -- Gianfranco Costamagna <email address hidden>  Wed, 04 Jan 2023 14:21:18 +0100