From: Matthias Maier <tamiko@43-1.org>
Date: Thu, 15 Feb 2024 22:03:22 +0000 (-0600)
Subject: base/mpi.h: mark a template variable to have "const inline" linkage.
X-Git-Tag: relicensing~35^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F16653%2Fhead;p=dealii.git

base/mpi.h: mark a template variable to have "const inline" linkage.
---

diff --git a/include/deal.II/base/mpi.h b/include/deal.II/base/mpi.h
index bc0aab7339..67a23a047a 100644
--- a/include/deal.II/base/mpi.h
+++ b/include/deal.II/base/mpi.h
@@ -1745,7 +1745,7 @@ namespace Utilities
      * not satisfied.
      */
     template <typename T>
-    const MPI_Datatype mpi_type_id_for_type =
+    inline const MPI_Datatype mpi_type_id_for_type =
       internal::MPIDataTypes::mpi_type_id(
         static_cast<std::remove_cv_t<std::remove_reference_t<T>> *>(nullptr));
 #endif