On Mon, 13 Nov 2023 16:16:35 -0800 Stephen Hemminger <stephen at networkplumber.org> wrote: > _Static_assert(!(0 != 0), "RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN != 0"); Looks like a clang bug, or something about the other compiler flags because compiling just this part is fine.