Fix configure to enable warnings and fix most of them.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/ipv4.h b/lib/ipv4.h
index 52bed16f..74f1e88f 100644
--- a/lib/ipv4.h
+++ b/lib/ipv4.h
@@ -72,7 +72,7 @@ int ipv4_classify(u32);
 u32 ipv4_class_mask(u32);
 byte *ipv4_skip_header(byte *, int *);
 
-static inline int ipv4_has_link_scope(u32 a)
+static inline int ipv4_has_link_scope(u32 a UNUSED)
 {
   return 0;
 }