Fix a compiler warning if IP_MTU is not defined.

diff --git a/src/pmtu.c b/src/pmtu.c
index 36152cffec2af6d8d23a61f32d5a8fa7ffa202c9..5f771cfc7bdb3ef768c536e595381e7f01a214c2 100644 (file)
--- a/src/pmtu.c
+++ b/src/pmtu.c
@@ -306,6 +306,7 @@ static uint16_t choose_initial_maxmtu(meshlink_handle_t *mesh, node_t *n) {
        return mtu;
 
 #else
+       (void)mesh;
        (void)n;
        return MTU;
 #endif