diff -uNr bird-1.2.2.orig/sysdep/linux/sysio.h bird-1.2.2/sysdep/linux/sysio.h
--- bird-1.2.2.orig/sysdep/linux/sysio.h	2010-04-09 21:40:57.000000000 +0200
+++ bird-1.2.2/sysdep/linux/sysio.h	2010-04-09 23:09:11.085478940 +0200
@@ -10,6 +10,12 @@
 
 #ifdef IPV6
 
+struct in6_pktinfo
+{
+  struct in6_addr ipi6_addr;  /* src/dst IPv6 address */
+  unsigned int ipi6_ifindex;  /* send/recv interface index */
+};
+
 #ifndef IPV6_UNICAST_HOPS
 /* Needed on glibc 2.0 systems */
 #include <linux/in6.h>