Auto merge of #1188 - pusateri:netbsd8, r=gnzlbg

NetBSD 8 adds new address family changing AF_MAX and new ifaddrs flags.

libc-test on NetBSD 8.0  fails without these changes.
ifa_addrflags was added to struct ifaddrs to support AF_CAN.
AF_MAX got bumped up one by AF_CAN.
RT_IFLIST format changed to support ifa_addrflags.

Author: bors

src/unix/bsd/mod.rs

@@ -57,7 +57,9 @@ s! {
         pub ifa_addr: *mut ::sockaddr,
         pub ifa_netmask: *mut ::sockaddr,
         pub ifa_dstaddr: *mut ::sockaddr,
-        pub ifa_data: *mut ::c_void
+        pub ifa_data: *mut ::c_void,
+        #[cfg(target_os = "netbsd")]
+        pub ifa_addrflags: ::c_uint
     }
 
     pub struct fd_set {

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -526,15 +526,16 @@ pub const AF_BLUETOOTH: ::c_int = 31;
 pub const AF_IEEE80211: ::c_int = 32;
 pub const AF_MPLS: ::c_int = 33;
 pub const AF_ROUTE: ::c_int = 34;
-pub const AF_MAX: ::c_int = 35;
+pub const AF_MAX: ::c_int = 36;
 
 pub const NET_MAXID: ::c_int = AF_MAX;
 pub const NET_RT_DUMP: ::c_int = 1;
 pub const NET_RT_FLAGS: ::c_int = 2;
-pub const NET_RT_OOIFLIST: ::c_int = 3;
-pub const NET_RT_OIFLIST: ::c_int = 4;
-pub const NET_RT_IFLIST: ::c_int = 5;
-pub const NET_RT_MAXID: ::c_int = 6;
+pub const NET_RT_OOOIFLIST: ::c_int = 3;
+pub const NET_RT_OOIFLIST: ::c_int = 4;
+pub const NET_RT_OIFLIST: ::c_int = 5;
+pub const NET_RT_IFLIST: ::c_int = 6;
+pub const NET_RT_MAXID: ::c_int = 7;
 
 pub const PF_OROUTE: ::c_int = AF_OROUTE;
 pub const PF_ARP: ::c_int = AF_ARP;