Runroot: Fix a issue caused by restructured headers

(cherry picked from commit 8134fc8552f838d571dd6b21fe707ca02ea2c112)
diff --git a/src/traffic_layout/file_system.cc b/src/traffic_layout/file_system.cc
index a1f0540..6b94034 100644
--- a/src/traffic_layout/file_system.cc
+++ b/src/traffic_layout/file_system.cc
@@ -243,7 +243,8 @@
     }
     if (copy_dir == LAYOUT_INCLUDEDIR) {
       // check if include file is contained in atscppapi/ and ts/. If not, end the copying.
-      if (dst_path.find("/atscppapi/") == std::string::npos && dst_path.find("/ts/") == std::string::npos) {
+      if (dst_path.find("/atscppapi/") == std::string::npos && dst_path.find("/ts/") == std::string::npos &&
+          dst_path.find("/tscpp/") == std::string::npos) {
         break;
       }
     }