diff -Nur smartdenovo/wtlay.h smartdenovo-new/wtlay.h
--- smartdenovo/wtlay.h	2020-07-09 02:47:13.503412360 +0800
+++ smartdenovo-new/wtlay.h	2020-07-09 02:49:02.775412360 +0800
@@ -503,17 +503,17 @@
 	return e2;
 }
 
-inline int cut_biedge_strgraph_core(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx, int closed){
+static inline int cut_biedge_strgraph_core(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx, int closed){
 	edge_strgraph(g, node_id, dir, eidx)->closed = closed;
 	edge_partner_strgraph(g, node_id, dir, eidx)->closed = closed;
 	return 1;
 }
 
-inline int cut_biedge_strgraph(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx){
+static inline int cut_biedge_strgraph(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx){
 	return cut_biedge_strgraph_core(g, node_id, dir, eidx, 1);
 }
 
-inline int cut_biedge_strgraph2(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx){
+static inline int cut_biedge_strgraph2(StringGraph *g, uint32_t node_id, int dir, uint32_t eidx){
 	return cut_biedge_strgraph_core(g, node_id, dir, eidx, 2);
 }