hyperscan depends on libstcd++6 (>=5.2)

[Arturo Borrero Gonzalez <arturo@debian.org>]

Hi Sascha,

I'm a bit lost here. If I try to build suricata 3.2-2~bpo8+1 which
depends on hyperscan, I get:

[...]
The following packages have unmet dependencies:
 libhyperscan4 : Depends: libstdc++6 (>= 5.2) but 4.9.2-10 is installed.
Unable to resolve dependencies!  Giving up...
[...]

However, I can't see how is that possible, since libstdc++6 is not in
jessie-backports:

% rmadison libstdc++6
libstdc++6 | 4.7.2-5       | oldstable           | [...]
libstdc++6 | 4.9.2-10      | stable              | [...]
libstdc++6 | 4.9.2-10      | stable-kfreebsd     | [...]
libstdc++6 | 6.2.1-5       | testing             | [...]
libstdc++6 | 6.3.0-2       | unstable            | [...]
libstdc++6 | 6.3.0-3       | buildd-unstable     | [...]
libstdc++6 | 6.3.0-3       | unstable            | [...]
libstdc++6 | 6.3.0-4       | buildd-unstable     | [...]
libstdc++6 | 6.3.0-4       | unstable            | [...]
libstdc++6 | 7-20161230-1  | experimental        | [...]
libstdc++6 | 7-20170118-1  | buildd-experimental | [...]
libstdc++6 | 7-20170118-1  | experimental        | [...]
libstdc++6 | 7-20170121-1  | buildd-experimental | [...]
libstdc++6 | 7-20170121-1  | experimental        | [...]

Could you please share any hint? CC'ing the backports folks, perhaps
they have any additional clue.

best regards.