[Pkg-roundcube-maintainers] Bug#810980: roundcube-plugins: upgrade from wheezy to jessie fails with dpkg error: command dir_to_symlink is unknown

[s.bator at travelaudience.com]

Package: roundcube
Version: 0.9.5-1~bpo70+1
Severity: normal

Dear Maintainer,

when upgrading from wheezy to jessie the installation of
roundcube-plugins fails with:

dpkg-maintscript-helper: error: command dir_to_symlink is unknown
Hint: upgrading dpkg to a newer version might help.

Installing dpkg-dev after changing the sources to jessie helped and the
installation finished. This seams to be the same problem as in Debian
Bug 749931.

-- System Information:
Debian Release: 7.9
  APT prefers oldstable
  APT policy: (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-0.bpo.4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages roundcube-plugins depends on:
ii  roundcube-core  0.9.5-1~bpo70+1

roundcube-plugins recommends no packages.

roundcube-plugins suggests no packages.

Versions of packages roundcube-core depends on:
ii  dbconfig-common          1.8.47+nmu1
ii  debconf [debconf-2.0]    1.5.49
ii  libjs-jquery             1.7.2+dfsg-1
ii  libjs-jquery-ui          1.10.1+dfsg-1~bpo70+1
ii  libmagic1                5.11-2+deb7u8
ii  php-auth                 1.6.2-1
ii  php-mail-mime            1.8.4-1
ii  php-net-smtp             1.6.1-1
ii  php-net-socket           1.0.9-2
ii  php5                     5.4.45-0+deb7u2
ii  php5-common [php5-json]  5.4.45-0+deb7u2
ii  php5-intl                5.4.45-0+deb7u2
ii  php5-mcrypt              5.4.45-0+deb7u2
ii  roundcube-pgsql          0.9.5-1~bpo70+1
ii  tinymce                  3.4.8+dfsg0-1
ii  ucf                      3.0025+nmu3

Versions of packages roundcube-core recommends:
pn  apache2 | lighttpd | httpd-cgi  <none>
ii  php5-gd                         5.4.45-0+deb7u2
ii  php5-pspell                     5.4.45-0+deb7u2

Versions of packages roundcube-core suggests:
ii  php-auth-sasl  1.0.4-1
pn  php-crypt-gpg  <none>

-- Configuration Files:
/etc/roundcube/plugins/password/config.inc.php changed [not included]

-- debconf information excluded