Bug#763840: iagno: file conflict with gnome-accessibility-themes < 3.14

[Karl Fogel]

I'm seeing this bug too, for what it's worth.  By the way, if you do

  # apt-get remove iagno

...the result is very bad -- apt-get claims it will remove 'gnome' and
'gnome-desktop-environment', among other things!

The reason appears to be that 'gnome' depends on 'gnome-games', and
'gnome-games' depends on 'iagno'.  I don't know why 'gnome' depends on
'gnome' games; that seems like a bad idea.  The transcript below shows
some of the aftermath:

  # apt-get update
  ...
  # apt-get dist-upgrade
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  You might want to run 'apt-get -f install' to correct these.
  The following packages have unmet dependencies:
   gnome-games : Depends: iagno (>= 1:3.8) but it is not installed
  E: Unmet dependencies. Try using -f.
  # apt-get -f install
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Correcting dependencies... Done
  The following packages were automatically installed and are no longer required:
    librygel-core-2.2-2 librygel-renderer-2.2-2 librygel-renderer-gst-2.2-2
    librygel-server-2.2-2
  Use 'apt-get autoremove' to remove them.
  The following extra packages will be installed:
    iagno
  The following NEW packages will be installed:
    iagno
  0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
  3 not fully installed or removed.
  Need to get 0 B/1,136 kB of archives.
  After this operation, 5,934 kB of additional disk space will be used.
  Do you want to continue? [Y/n] y
  debconf: unable to initialize frontend: Dialog
  debconf: (Dialog frontend will not work on a dumb terminal, an emacs shell buffer, or without a controlling terminal.)
  debconf: falling back to frontend: Readline
  (Reading database ... 548649 files and directories currently installed.)
  Preparing to unpack .../iagno_1%3a3.14.0-1_amd64.deb ...
  Unpacking iagno (1:3.14.0-1) ...
  dpkg: error processing archive /var/cache/apt/archives/iagno_1%3a3.14.0-1_amd64.deb (--unpack):
   trying to overwrite '/usr/share/icons/HighContrast/48x48/apps/iagno.png', which is also in package gnome-accessibility-themes 3.12.0-1
  Processing triggers for libglib2.0-0:amd64 (2.42.0-1) ...
  Processing triggers for man-db (2.7.0.2-1) ...
  Processing triggers for gnome-menus (3.13.3-1) ...
  Processing triggers for mime-support (3.56) ...
  Processing triggers for desktop-file-utils (0.22-1) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/iagno_1%3a3.14.0-1_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  # apt-get install iagno
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following packages were automatically installed and are no longer required:
    librygel-core-2.2-2 librygel-renderer-2.2-2 librygel-renderer-gst-2.2-2
    librygel-server-2.2-2
  Use 'apt-get autoremove' to remove them.
  The following NEW packages will be installed:
    iagno
  0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
  3 not fully installed or removed.
  Need to get 0 B/1,136 kB of archives.
  After this operation, 5,934 kB of additional disk space will be used.
  debconf: unable to initialize frontend: Dialog
  debconf: (Dialog frontend will not work on a dumb terminal, an emacs shell buffer, or without a controlling terminal.)
  debconf: falling back to frontend: Readline
  (Reading database ... 548649 files and directories currently installed.)
  Preparing to unpack .../iagno_1%3a3.14.0-1_amd64.deb ...
  Unpacking iagno (1:3.14.0-1) ...
  dpkg: error processing archive /var/cache/apt/archives/iagno_1%3a3.14.0-1_amd64.deb (--unpack):
   trying to overwrite '/usr/share/icons/HighContrast/48x48/apps/iagno.png', which is also in package gnome-accessibility-themes 3.12.0-1
  Processing triggers for libglib2.0-0:amd64 (2.42.0-1) ...
  Processing triggers for man-db (2.7.0.2-1) ...
  Processing triggers for gnome-menus (3.13.3-1) ...
  Processing triggers for mime-support (3.56) ...
  Processing triggers for desktop-file-utils (0.22-1) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/iagno_1%3a3.14.0-1_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  # apt-get install gnome
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  gnome is already the newest version.
  You might want to run 'apt-get -f install' to correct these:
  The following packages have unmet dependencies:
   gnome-games : Depends: iagno (>= 1:3.8) but it is not going to be installed
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
  #