The minizip.c that ships with the new version of zlib has changed significantly and is no longer compatible with what qtiplot uses.
We can now just use minizip.c that comes with qtiplot (todo: include the license in debian/copyright, drop the build dependency on zlib, fix get-orig-source rule to not exclude it in the future, drop part of patch that looks for minizip in working directory) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org