From 4e5ba4b4601209f389c394cd3747891e76b43f1c Mon Sep 17 00:00:00 2001
From: Erik B Knudsen <erik.knudsen@copenhagenatomics.com>
Date: Tue, 6 Sep 2022 09:12:01 +0200
Subject: [PATCH] expose a python function to check for mcpl

---
 openmc/lib/__init__.py | 3 +++
 src/source.cpp         | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/openmc/lib/__init__.py b/openmc/lib/__init__.py
index c14b0d9c28..1e337fc073 100644
--- a/openmc/lib/__init__.py
+++ b/openmc/lib/__init__.py
@@ -48,6 +48,9 @@ def _coord_levels():
 def _libmesh_enabled():
     return c_bool.in_dll(_dll, "LIBMESH_ENABLED").value
 
+def _mcpl_enabled():
+    return c_bool.in_dll(_dll, "MCPL_ENABLED").value
+
 from .error import *
 from .core import *
 from .nuclide import *
diff --git a/src/source.cpp b/src/source.cpp
index e7c944cb58..9b426c3cfa 100644
--- a/src/source.cpp
+++ b/src/source.cpp
@@ -41,6 +41,12 @@ namespace openmc {
 // Global variables
 //==============================================================================
 
+#ifdef OPENMC_MCPL
+const bool MCPL_ENABLED = true;
+#else
+const bool MCPL_ENABLED = false;
+#endif
+
 namespace model {
 
 vector<unique_ptr<Source>> external_sources;