I get the following messages: imagemagick depends on libtiff3 libtiff3 does not appear to be available.
Q1: Can somebody tell me where I can find libtiff3 ? Q2: Is it a .deb installation file ? A1: in the graphics section of the archive (the unstable, certainly). Also get zlib1 and libjpeg6a because libtiff3 depends on them (and they all replace libgr, so you may have to update packaging depending on libgr: try to remove it to get a list of such packages). A2: yes. libtiff3 and libtiff3-dev for developers. Yves.