Also mark some variable instantiations as 'extern'.

diff --git a/include/deal.II/hp/mapping_collection.h b/include/deal.II/hp/mapping_collection.h
index 15fb484424f93fbb7c64db8a49b35465fcec1ead..e95319a80094e1a0c057c8ad421276e1db329367 100644 (file)
--- a/include/deal.II/hp/mapping_collection.h
+++ b/include/deal.II/hp/mapping_collection.h
@@ -191,6 +191,19 @@ namespace hp
   extern template struct StaticMappingQ1<2, 2>;
   extern template struct StaticMappingQ1<2, 3>;
   extern template struct StaticMappingQ1<3, 3>;
+
+  extern template MappingCollection<1, 1>
+    StaticMappingQ1<1, 1>::mapping_collection;
+  extern template MappingCollection<1, 2>
+    StaticMappingQ1<1, 2>::mapping_collection;
+  extern template MappingCollection<1, 3>
+    StaticMappingQ1<1, 3>::mapping_collection;
+  extern template MappingCollection<2, 2>
+    StaticMappingQ1<2, 2>::mapping_collection;
+  extern template MappingCollection<2, 3>
+    StaticMappingQ1<2, 3>::mapping_collection;
+  extern template MappingCollection<3, 3>
+    StaticMappingQ1<3, 3>::mapping_collection;
 #endif
 
 } // namespace hp