depends  git  &&

optional_depends  rcs                        \
                  ''                         \
                  ''                         \
                  'for RCS merging support'  &&

optional_depends  curl                           \
                  ''                             \
                  ''                             \
                  'for fetching files via HTTP'  &&

optional_depends  SSH                               \
                  ''                                \
                  ''                                \
                  'for fetching files via git+ssh'  &&

optional_depends  rsync                           \
                  ''                              \
                  ''                              \
                  'for fetching files via rsync'

.