depends  flex       &&
depends  bison      &&
depends  SSL    &&

optional_depends  "zlib"                                \
                  "--enable-zlib"                       \
                  "--disable-zlib"                      \
                  "for zlib compression (TCP tunnels)"  &&

optional_depends  "lzo"                                 \
                  "--enable-lzo"                        \
                  "--disable-lzo"                       \
                  "for LZO compression"
