Re: src: remove dependency on libiptc headers

[Patrick McHardy <kaber@trash.net>]

Pablo Neira Ayuso wrote:
> Jan Engelhardt wrote:
>> On Monday 2008-08-04 10:35, Pablo Neira Ayuso wrote:
>>>> The API actually remains the same, due to the nature of char[]
>>>> decaying into char* (and .name is also only used in the registrator);
>>>> the ABI (indicated by XTABLES_VERSION) changes yes, and that is fine
>>>> because we moved from 1.4.1 to 1.4.2-rc1.
>>> Sure, but say that someone uses whatever iproute2 version <=
>>> iproute2-2.6.26 - which does not check for any ABI version numbering
>>> AFAICS - and then it compiles whatever >= 1.4.2-rc1 by hand, then
>>> jamal's ipt thing will not work as they use different ABIs.
>>>
>>> I'm not talking on how to solve future interdependecy problems - which
>>> you seems to have it done by exporting xtables as library - but the
>>> problems that the size change of .name will trigger for some time.
>> If the ABI changes, the libxtables.so ABI version number just get
>> bumped, that is what they are there for.
> 
> Great. You're breaking previous backward compatibility with old iproute2
> versions since they are not checking that number.

Jumping in late, but I already applied that patch. The iproute
compabibility is already broken regulary because the "interface"
is a huge hack and it duplicates all kinds of internal functions.
So this doesn't really make things worse. I don't think its
reasonable to not change internal functions/structs because
something external is dlopening and fiddling in iptables internals.
Once iproute makes use of libxtables I'm willing to be more
careful about this.