From dedd15b6a4edeb3d3c4c5b6faaa9c2534c572280 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Thu, 12 May 2022 13:43:01 +0300
Subject: [PATCH] bos #29863 [CEA 29586] MEDCouplingBascisTest failing: SWIG 4
 compatibility (temporary solution)

---
 CMakeLists.txt                                   | 8 ++++++++
 src/MEDCoupling_Swig/MEDCouplingRefCountObject.i | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 842dd4aee..8064b103d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -211,6 +211,14 @@ IF(MEDCOUPLING_ENABLE_PYTHON)
   IF ("${PYTHON_VERSION_MAJOR}" STREQUAL "3")
       MESSAGE(STATUS "Using Python 3")
   ENDIF()
+  IF ("${SWIG_VERSION}" VERSION_GREATER_EQUAL "4")
+    SET(MEDCOUPLING_SWIG4_COMPAT TRUE CACHE BOOL "SWIG 4 compatibility (experimental)")
+  ELSE()
+    SET(MEDCOUPLING_SWIG4_COMPAT FALSE)
+  ENDIF()
+  IF(MEDCOUPLING_SWIG4_COMPAT)
+    LIST(APPEND CMAKE_SWIG_FLAGS "-DMEDCOUPLING_SWIG4_COMPAT")
+  ENDIF()
 ENDIF(MEDCOUPLING_ENABLE_PYTHON)
 
 IF(MEDCOUPLING_BUILD_DOC)
diff --git a/src/MEDCoupling_Swig/MEDCouplingRefCountObject.i b/src/MEDCoupling_Swig/MEDCouplingRefCountObject.i
index cae752fff..7e363eaf3 100644
--- a/src/MEDCoupling_Swig/MEDCouplingRefCountObject.i
+++ b/src/MEDCoupling_Swig/MEDCouplingRefCountObject.i
@@ -47,7 +47,11 @@ namespace INTERP_KERNEL
   catch (INTERP_KERNEL::Exception& _e) {
     // Reraise with SWIG_Python_Raise
     SWIG_Python_Raise(SWIG_NewPointerObj((new INTERP_KERNEL::Exception(static_cast< const INTERP_KERNEL::Exception& >(_e))),SWIGTYPE_p_INTERP_KERNEL__Exception,SWIG_POINTER_OWN), "INTERP_KERNEL::Exception", SWIGTYPE_p_INTERP_KERNEL__Exception);
+#ifdef MEDCOUPLING_SWIG4_COMPAT
+    return nullptr;
+#else
     SWIG_fail;
+#endif
   }
 }
 
-- 
2.39.2