Netlink: Fix build with older headers missing IFA_FLAGS

diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c
index f6cedbd837c9f3628b35bc2ea6c33a2186c73143..fa9013bd1ee49cf346b4b409851e8b6bbe05d16c 100644 (file)
--- a/sysdep/linux/netlink.c
+++ b/sysdep/linux/netlink.c
@@ -38,6 +38,10 @@
 #define MSG_TRUNC 0x20
 #endif
 
+#ifndef IFA_FLAGS
+#define IFA_FLAGS 8
+#endif
+
 #ifndef IFF_LOWER_UP
 #define IFF_LOWER_UP 0x10000
 #endif