OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last])
+ OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err],
+ [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])])
OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])