Bug#749931: ijsgutenprint: Fails on upgrade, with wheezy dpkg

[Willi Mann <willi@debian.org>]

Package: ijsgutenprint
Version: 5.2.10-1
Severity: grave

Hi,

On upgrade, ijsgutenprint fails on wheezy:

Vorbereitung zum Ersetzen von ijsgutenprint 5.2.9-1 (durch .../ijsgutenprint_5.2.10-1_amd64.deb) ...
dpkg-maintscript-helper: error: command dir_to_symlink is unknown
Hint: upgrading dpkg to a newer version might help.

Usage: dpkg-maintscript-helper <command> <parameter>... -- <maintainer-script-parameter>...

Commands:
  supports <command>
        Returns 0 (success) if the given command is supported, 1 otherwise.
  rm_conffile <conffile> [<last-version> [<package>]]
        Remove obsolete conffile. Must be called in preinst, postinst and
        postrm.
  mv_conffile <old-conf> <new-conf> [<last-version> [<package>]]
        Rename a conffile. Must be called in preinst, postinst and postrm.
  help
        Display this usage information.
dpkg: Fehler beim Bearbeiten von /var/cache/apt/archives/ijsgutenprint_5.2.10-1_amd64.deb (--unpack):
 Unterprozess neues pre-installation-Skript gab den Fehlerwert 1 zurÃŒck
dpkg-maintscript-helper: error: command dir_to_symlink is unknown
Hint: upgrading dpkg to a newer version might help.

Usage: dpkg-maintscript-helper <command> <parameter>... -- <maintainer-script-parameter>...

Commands:
  supports <command>
        Returns 0 (success) if the given command is supported, 1 otherwise.
  rm_conffile <conffile> [<last-version> [<package>]]
        Remove obsolete conffile. Must be called in preinst, postinst and
        postrm.
  mv_conffile <old-conf> <new-conf> [<last-version> [<package>]]
        Rename a conffile. Must be called in preinst, postinst and postrm.
  help
        Display this usage information.
dpkg: Fehler beim AufrÀumen:
 Unterprozess neues post-removal-Skript gab den Fehlerwert 1 zurÃŒck


(Sorry for the partial german locale)

Since this might bite many users on upgrade from wheezy to jessie, I set the severity to grave.

-- System Information:
Debian Release: 7.5
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages ijsgutenprint depends on:
ii  ghostscript     9.05~dfsg-6.3+deb7u1
ii  libc6           2.18-5
iu  libgutenprint2  5.2.10-1
ii  libijs-0.35     0.35-8

Versions of packages ijsgutenprint recommends:
iu  foomatic-db-gutenprint  5.2.10-1

ijsgutenprint suggests no packages.

-- no debconf information