NetBSD-7 has an incomplete IP_PKTINFO implementation.

It only works for receiving data, not sending it.
We only need it to send, so pretend it doesn't exist.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/dhcp.c b/src/dhcp.c
index 7a6749d4..1e9fe186 100644
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -86,6 +86,11 @@
 #define IPDEFTTL 64 /* RFC1340 */
 #endif
 
+/* NetBSD-7 has an incomplete IP_PKTINFO implementation. */
+#if defined(__NetBSD_Version__) && __NetBSD_Version__ < 800000000
+#undef IP_PKTINFO
+#endif
+
 /* Assert the correct structure size for on wire */
 __CTASSERT(sizeof(struct ip)		== 20);
 __CTASSERT(sizeof(struct udphdr)	== 8);