I'm still learning about patching. Here's another try... This one applied to a clean (plus the patch) source directory with:
apt-get source -d libspf2 dkpg-source -x libspf2_1.2.5-4.dsc patch --verbose -p0 <libspf2-1.2.5-spfquery-update-alternatives.patch Subsequently source and binary packages built and installed correctly. ** Attachment added: "Fixed (even more) patch." http://librarian.launchpad.net/5819895/libspf2-1.2.5-spfquery-update-alternatives.patch -- spfquery: conflict with libmail-spf-query-perl Debian bug#306875 https://launchpad.net/bugs/79683 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs