[mc] Better explanation for DW_OP_call_frame_cfa

[simgrid.git] / include / smpi / smpi.h

diff --git a/include/smpi/smpi.h b/include/smpi/smpi.h
index a9117e2..429f818 100644 (file)
--- a/include/smpi/smpi.h
+++ b/include/smpi/smpi.h
@@ -178,7 +178,7 @@ SG_BEGIN_DECL()
 #define MPI_ROOT 0
 #define MPI_INFO_NULL NULL
 #define MPI_COMM_TYPE_SHARED    1
-#define MPI_WIN_NULL NULL
+#define MPI_WIN_NULL ((MPI_Win)NULL)
 
 #define MPI_VERSION 1
 #define MPI_SUBVERSION 1