[Dune] Problem with installation

[Christoph Grüninger]

Hi Lars,
your compiler is too old, is does not support C++14.
GCC 4.9 or Clang 3.8 (or 3.5 with a libc++ and not
libstdcxx) is sufficient.

We (Dune) should add a check to warn properly about too
old compilers instead of leaving you like that.

Bye
Christoph

-- 
On the one hand [computer "science"] has components
of the purest of mathematics and on the other hand
of the dirtiest of engineering. -- A. Oettinger 1967