[dune-pdelab] Minimum compiler support for building the PDELab

[Bård Skaflestad]

All,

I've been trying (and failing) to build the PDELab-howto using GCC 4.4
over the past couple of weeks.  With Markus's latest changes to the
howto (commit e741a9d) I got most of the way there, but still not quite.

If I apply the hack outlined below (clearly not production ready), I
*am* able to build the -howto using GCC 4.4 with the following external
software packages

      * ALUGrid: version 1.52 (parallel)
      * BLAS: yes
      * Eigen: yes
      * METIS: yes
      * OpenGL: yes (add GL_LIBS to LDADD manually, etc.)
      * SuperLU: yes (version 4.2 or older, post 2005)

So, before I attempt to polish this thing, I'd just like to ask whether
or not PDELab (and its -howto module) is supposed to work (or, at least,
build) on older toolchains.  I tried to search the website but was
unable to find any list of minimum required compiler versions.


Sincerely,
-- 
Bård Skaflestad <Bard.Skaflestad at sintef.no>
SINTEF Applied Mathematics

-------------8<------------------------8<-------------------------------

diff --git a/dune/pdelab/gridfunctionspace/subspacelocalfunctionspace.hh
b/dune/pdelab/gridfunctionspace/subspacelocalfunctionspace.hh
index 750f309..72d47f1 100644
--- a/dune/pdelab/gridfunctionspace/subspacelocalfunctionspace.hh
+++ b/dune/pdelab/gridfunctionspace/subspacelocalfunctionspace.hh
@@ -61,8 +61,16 @@ namespace Dune {
         void bind(const E& e)
         {
           LFS::bind(e);
+#if 0
           for (auto& di : this->_dof_index_storage)
             complete_dof_index(di);
+#else
+          for (typename Traits::DOFIndexContainer::iterator
+                 di = this->_dof_index_storage.begin(),
+                 de = this->_dof_index_storage.end();
+               di != de; ++di)
+            complete_dof_index(*di);
+#endif
         }
 
         std::size_t subSpaceDepth() const