> This problem is caused because zlib1g 1:1.2.7.dfsg-11+b1 (amd64) and > 1:1.2.7.dfsg-11 (i386) as available in wheezy are not co-installable. > Install zlib1g from sid for both architectures and everything should be > fine. 1.2.7.dfsg-13 i386 and amd64 can now be installed in parallel. This bug report can be closed, AFAICS. Cheers, Joerg