From 20954936fcb1319cc0802a0402daf994d3ce92aa Mon Sep 17 00:00:00 2001
From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Thu, 18 Sep 2014 10:29:00 +0200
Subject: [PATCH] Fix compilation of #146 without MPI

---
 source/base/mpi.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/base/mpi.cc b/source/base/mpi.cc
index 4d87cd9da7..3ed5cd3f85 100644
--- a/source/base/mpi.cc
+++ b/source/base/mpi.cc
@@ -331,6 +331,7 @@ namespace Utilities
       else
         // user wants automatic choice
         {
+#ifdef DEAL_II_WITH_MPI
           // we need to figure out how many MPI processes there
           // are on the current node, as well as how many CPU cores
           // we have. for the first task, check what get_hostname()
@@ -381,6 +382,9 @@ namespace Utilities
                         :
                         0),
                        1U);
+#else
+          const unsigned int n_threads = multithread_info.n_cpus;
+#endif
 
           // finally set this number of threads
           multithread_info.set_thread_limit(n_threads);
-- 
2.39.5