diff -ruN boost_1_55_0-orig/tools/build/v2/engine/modules/path.c boost_1_55_0/tools/build/v2/engine/modules/path.c
--- boost_1_55_0-orig/tools/build/v2/engine/modules/path.c	2013-05-20 23:14:18.000000000 -0500
+++ boost_1_55_0/tools/build/v2/engine/modules/path.c	2021-01-06 06:21:53.000000000 -0600
@@ -8,7 +8,7 @@
 #include "../frames.h"
 #include "../lists.h"
 #include "../native.h"
-#include "../timestamp.h"
+#include "../filesys.h"
 
 
 LIST * path_exists( FRAME * frame, int flags )