OPM/opm-autodiff — pull request #244 by bska (2014-11-27 14:20:41+00:00)
Title: Include <config.h> to fix build on GCC 4.8

GCC 4.8 provides `nullptr` in C++11 mode. That capability is detected at configuration time and stored in `` and we need it when targeting Dune 2.2.1 to avoid diagnostics of the form

```
[...]/dune/common/nullptr.hh:27:1:
error: expected ‘;’ after class definition
} nullptr = {}; // and whose name is nullptr
^

[...]/dune/common/nullptr.hh:27:1:
error: qualifiers can only be specified for objects and functions
[...]/dune/common/nullptr.hh:27:3:
error: expected unqualified-id before ‘nullptr’
} nullptr = {}; // and whose name is nullptr
```