Think is triggerd with nftables support In file included from /home/daniel/Build/openwrt-ath79/staging_dir/toolchain-mips_24kc_gcc-7.3.0_musl/include/net/ethernet.h:10:0, from ../iptables/nft-bridge.h:8, from libebt_vlan.c:18: /home/daniel/Build/openwrt-ath79/staging_dir/toolchain-mips_24kc_gcc-7.3.0_musl/include/netinet/if_ether.h:111:8: error: redefinition of 'struct ethhdr' struct ethhdr { ^~~~~~ In file included from libebt_vlan.c:16:0: /home/daniel/Build/openwrt-ath79/build_dir/target-mips_24kc_musl/linux-ath79_generic/linux-4.14.82/user_headers/include/linux/if_ether.h:155:8: note: originally defined here struct ethhdr { ^~~~~~ make[6]: *** [GNUmakefile:127: libebt_vlan.oo] Error 1 make[6]: Leaving directory '/home/daniel/Build/openwrt-ath79/build_dir/target-mips_24kc_musl/linux-ath79_generic/iptables-1.8.2/extensions' make[5]: *** [Makefile:506: all-recursive] Error 1