include: Fix musl libc compatibility

Conflicting definitions of struct ethhdr between the kernel and musl
libc provides headers causes a build failure:

In file included from .../usr/include/netinet/ether.h:8:0,
                 from useful_functions.c:28:
.../usr/include/netinet/if_ether.h:107:8: error: redefinition of ‘struct ethhdr’
 struct ethhdr {
        ^~~~~~
In file included from include/linux/netfilter_bridge.h:8:0,
                 from include/linux/netfilter_bridge/ebtables.h:17,
                 from include/ebtables_u.h:27,
                 from useful_functions.c:25:
include/linux/if_ether.h:119:8: note: originally defined here
 struct ethhdr {
        ^~~~~~

Recent enough versions kernel headers allow the libc to suppress
conflicting kernel definitions. Include the libc proivded
netinet/ether.h before kernel headers to suppress the conflicting
definition of struct ethhdr.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions