Hi,
the recent upgrade libarchive 2.8.4 => 3.1.2 rendered pkgin unusable:
/opt/pkgsrc/bin/pkgin: error while loading shared libraries: libarchive.so.2: cannot open shared object file: No such file or directory
Please revbump the packages using libarchive. From a quick grep:
archivers/ark
archivers/bsdtar
archivers/libarchive
archivers/ruby-libarchive
audio/hydrogen
devel/cmake
filesystems/fuse-archivemount
lang/yap
mail/claws-mail-archive
pkgtools/pkg_install
pkgtools/pkgin
print/libgxps
sysutils/ftwin
sysutils/gvfs
textproc/aspell-csb
textproc/aspell-is