add missing inline

diff --git a/bundled/taskflow-2.5.0/include/taskflow/core/flow_builder.hpp b/bundled/taskflow-2.5.0/include/taskflow/core/flow_builder.hpp
index 477ec3d5cba8fa9052b2f1626fb41bb06af43519..e554730ef072db9f483fdceb2871ddd121083a06 100644 (file)
--- a/bundled/taskflow-2.5.0/include/taskflow/core/flow_builder.hpp
+++ b/bundled/taskflow-2.5.0/include/taskflow/core/flow_builder.hpp
@@ -913,7 +913,7 @@ class Subflow : public FlowBuilder {
 };
 
 // Constructor
-Subflow::Subflow(Executor& executor, Node* parent, Graph& graph) :
+inline Subflow::Subflow(Executor& executor, Node* parent, Graph& graph) :
   FlowBuilder {graph},
   _executor   {executor},
   _parent     {parent} {