#compdef zdump

if (( ! $+_zoneinfo_dirs )); then
  _zoneinfo_dirs=(/usr/share/zoneinfo*(/) /usr/lib/zoneinfo*(/) /usr/share/lib/zoneinfo*(/))
fi

_arguments '-v[lowest possible]' \
           '-c[cutoff]:cutoff year:' \
           '*:timezone:_path_files -W $_zoneinfo_dirs'