Merge pull request #3450 from bska/restore-non-default-dune-install-builds

Restore Builds With Dune in Non-Default Installed Locations

opm/material/common/quad.hpp

@@ -336,6 +336,8 @@ inline bool isinf(quad val)
 
 } // namespace std
 
+#if HAVE_DUNE_COMMON
+
 // specialize Dune::className for __float128 since it former does not work properly with
 // __float128 (this is mainly the fault of GCC/libstdc++)
 #include <dune/common/classname.hh>
@@ -346,6 +348,8 @@ inline std::string className<__float128>()
 { return "quad"; }
 } // namespace Dune
 
+#endif // HAVE_DUNE_COMMON
+
 #if HAVE_DUNE_FEM
 #include <dune/fem/io/streams/streams_inline.hh>