kernel versioning

[Arjan van de Ven]

> HAVE_SOCK_ZAPPED
> NET_26_12_SKALLOC
> HAVE_SOCK_SECURITY
> HAVE_SKB_NF_DEBUG
> SYSCTL_IPSEC_DEFAULT_TTL
> HAVE_TSTAMP
> HAVE_INET_SK_SPORT
> 
> Unfortunately, I really have no idea how to better do this, unless fedora
> ships some kernel header so at least all software projects could just
> re-use the same defines and all projects wouldn't have to re-invent the
> wheel. Because so far, we usually find out only after a kernel api broke.

well API changes are one of the prices you pay for being an outside
module, and is not unique to Fedora.

The entire kernel development model is setup for having everything in
one repo, and everything outside that is just painful. See that as
incentive to get your code merged ;)