[Bug 2136829] Re: pyqt6 FTBFS with dpkg from resolute-proposed due to --package-metadata

[Launchpad Bug Tracker]

This bug was fixed in the package dpkg - 1.22.21ubuntu9

---------------
dpkg (1.22.21ubuntu9) resolute; urgency=medium

  * Escape { and } for --package-metadata as well (LP: #2136829)

dpkg (1.22.21ubuntu8) resolute; urgency=medium

  * Fix typo in the last patch.

dpkg (1.22.21ubuntu7) resolute; urgency=medium

  * Revert the dpkg-buildflags change from last upload.  This would
    introduce regressions for packages not correctly picking up flags
    from the command line.  If such a change should be made, it should
    be made after an LTS release, together with the commitment to check
    the build artifact in the archive. Still, don't export the env vars
    DEB_BUILD_OS_RELEASE_ID, DEB_HOST_ARCH, DEB_SOURCE, DEB_VERSION.
    See LP: #2071468.
    Also include the architecture variant in the env var. See LP: #2131806.

dpkg (1.22.21ubuntu6) resolute; urgency=medium

  * Drop unused elf-package-metadata specs files
  * dpkg-buildflags: set --package-metadata directly in LDFLAGS instead of
    exporting ELF_PACKAGE_METADATA (Closes: #1117999, LP: #2071468)
  * Include architecture variant in ELF package metadata (LP: #2131806)

 -- Benjamin Drung <bdrung at ubuntu.com>  Thu, 18 Dec 2025 20:18:21 +0100

** Changed in: dpkg (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2136829

Title:
  pyqt6 FTBFS with dpkg from resolute-proposed due to --package-metadata

Status in dpkg package in Ubuntu:
  Fix Released
Status in pyqt6 package in Ubuntu:
  Fix Released

Bug description:
  pyqt6 FTBFS in resolute-proposed with the following error:

  https://launchpadlibrarian.net/837876594/buildlog_ubuntu-resolute-
  amd64v3.pyqt6_6.10.1-1_BUILDING.txt.gz

      E: pybuild pybuild:389: configure: plugin custom failed with:
  '%22type%22'

  It happens because PYBUILD_CONFIGURE_ARGS has the following value:

      {interpreter} /usr/bin/sip-build --verbose --no-make --confirm-
  license --pep484-pyi --target-dir /usr/lib/python3/dist-packages
  --build-dir {build_dir} --qmake /usr/lib/qt6/bin/qmake --qmake-setting
  CONFIG += nostrip --qmake-setting QMAKE_CXXFLAGS += "-g -O2 -fno-omit-
  frame-pointer -mno-omit-leaf-frame-pointer -ffile-prefix-
  map=/pyqt6-6.10.1=. -flto=auto -ffat-lto-objects -fstack-protector-
  strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-
  protection -fdebug-prefix-map=/pyqt6-6.10.1=/usr/src/pyqt6-6.10.1-1
  -Wdate-time -D_FORTIFY_SOURCE=3" --qmake-setting QMAKE_LFLAGS +=
  "-Wl,-Bsymbolic-functions -Wl,--package-
  metadata={%22type%22:%22deb%22%2C%22os%22:%22ubuntu%22%2C%22name%22:%22pyqt6%22%2C%22version%22:%226.10.1-1%22%2C%22architecture%22:%22amd64%22}
  -flto=auto -ffat-lto-objects -Wl,-z,relro"

  But pybuild treats everything between { and } as substitution markers.

  If it’s possible to escape { and } as %7B and %7D, that should fix the
  error.

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