Comment 3 for bug 1682874

I assume synaptic has a problem with packages like wine32 which are not available on the native architecture:

Package: wine32
Architecture: any-i386 any-powerpc armel armhf
Multi-Arch: foreign

Re-assigning to synaptic accordingly.

Within the wine packaging I think this issue is handled appropriately.
- wine depends on wine64|wine32
- wine64 recommends wine

This way wine32 should be installed as soon as the foreign arch (i386) is added to the system.

If wine32 is not installed and you start wine from the command line you'll get a warning hint:

  multiarch needs to be enabled first. as root, please
  execute "dpkg --add-architecture i386 && apt-get update &&
  apt-get install wine32VERSION"

Marking as invalid in wine therefore.