free_edge: squash -Wunused-parameter warnings

diff --git a/cmd/tools/gmlparse.y b/cmd/tools/gmlparse.y
index ff6f96d028e7ae9baaf29abd1783a0e84cd32f3c..386f67b3f54681f1837d8442bcd62a5fef9230ea 100644 (file)
--- a/cmd/tools/gmlparse.y
+++ b/cmd/tools/gmlparse.y
@@ -56,6 +56,9 @@ free_node (Dt_t*d, gmlnode* p, Dtdisc_t* ds)
 static void
 free_edge (Dt_t*d, gmledge* p, Dtdisc_t* ds)
 {
+    (void)d;
+    (void)ds;
+
     if (!p) return;
     if (p->attrlist) dtclose (p->attrlist);
     free (p);