*: use an ifindex_t type, defined in lib/if.h, for ifindex values
diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c
index e71b410..d382f03 100644
--- a/ospf6d/ospf6_message.c
+++ b/ospf6d/ospf6_message.c
@@ -1515,7 +1515,7 @@
   unsigned int len;
   char srcname[64], dstname[64];
   struct in6_addr src, dst;
-  unsigned int ifindex;
+  ifindex_t ifindex;
   struct iovec iovector[2];
   struct ospf6_interface *oi;
   struct ospf6_header *oh;