Removing zziplib from stretch seems like a bit of an effort: $ apt-cache rdepends libzzip-0-13 libzzip-0-13 Reverse Depends: libzzip-dev zziplib-bin libacexml-6.3.3 texlive-binaries swftools libogre-1.9.0v5 mpd milkytracker lua-zip libgetdata7
Cheers, -Hilko
