From 819d0dd2801a71b6e040457b728bbd1b6e990860 Mon Sep 17 00:00:00 2001
From: Alain Miniussi <alain.miniussi@oca.eu>
Date: Tue, 29 Oct 2024 17:16:16 +0100
Subject: [PATCH] Restore OMPI_SKIP_MPICXX and MPICH_SKIP_MPICXX in config.hpp
 to help non cmake build. Guard them form previous definition to avoir
 spurious warnings.

---
 include/boost/mpi/config.hpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/boost/mpi/config.hpp b/include/boost/mpi/config.hpp
index cbf264b..a22649a 100644
--- a/include/boost/mpi/config.hpp
+++ b/include/boost/mpi/config.hpp
@@ -13,6 +13,17 @@
 #ifndef BOOST_MPI_CONFIG_HPP
 #define BOOST_MPI_CONFIG_HPP
 
+#if !defined(MPICH_IGNORE_CXX_SEEK)
+/* Force MPICH not to define SEEK_SET, SEEK_CUR, and SEEK_END, which
+   conflict with the versions in <stdio.h> and <cstdio>. */
+# define MPICH_IGNORE_CXX_SEEK 1
+#endif
+
+#if !defined(OMPI_SKIP_MPICXX)
+/* We do not want to link in the OpenMPI CXX stuff */
+# define OMPI_SKIP_MPICXX
+#endif
+
 #include <mpi.h>
 #include <boost/config.hpp>