include: fix missing definitions in <cache.h>/<headers.h>

The headers should be self-contained so they can be included in any
order. With exception of <nft.h>, which any internal header can rely on.

Some fixes for <cache.h>/<headers.h>.

In case of <cache.h>, forward declare some of the structs instead of
including the headers. <headers.h> uses struct in6_addr.

Signed-off-by: Thomas Haller <thaller@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions