[Dune] How to force -std=c++0x in a dune project?

[Markus Blatt]

On Fri, Feb 15, 2013 at 10:16:55PM +0100, Arya Fallahi wrote:
> ../cyrus/signal.hh: In member function 'void
> Cyrus3d::SignalDataBase::showAll()':
> ../cyrus/signal.hh:640: error: using 'typename' outside of template
> ../cyrus/signal.hh:644: error: using 'typename' outside of template
> ../cyrus/signal.hh:648: error: using 'typename' outside of template
> ../cyrus/signal.hh:652: error: using 'typename' outside of template
> ../cyrus/signal.hh:656: error: using 'typename' outside of template

This is an error that you should fix. Presumably you have to strip
"typename" here. Some compilers are just more strict than others.

> This seems to be due to the incorrect standard chosen for this machine. In
> the first line "g++" should be "g++ -std=c++0x" as in machine 1. I googled
> and searched throughout the Dune Build howto to find the way to set this in
> the opts file. However, I could not find any thing. My opt file is pretty
> simple:
> 
> CONFIGURE_FLAGS="    MPICC='/tools/openmpi-1.6.3/bin/mpicc'
>                                        CXXFLAGS='-O3 -g0
> --no-strict-aliasing'
>                                        CPPFLAGS='-O3 -g0
> --no-strict-aliasing'
>                                        --enable-parallel
>                                        --prefix='/tools/cyrus'
>                                        --with-metis='/tools/metis-5.0.2'
> 
> --with-alugrid='/tools/ALUGrid-1.52'    "
> 
I think Cristoph is right, you are probably using the default gcc
version on your system. Please specify the compiler using CC and
CXX. 

If that does not help: Instead setting MPICC, you might specify the output of
./dune-common/bin/mpi-config --mpicc=/tools/openmpi-1.6.3/bin/mpicc --cflags
and
./dune-common/bin/mpi-config --mpicc=/tools/openmpi-1.6.3/bin/mpicc --libs
in CPPFLAGS/CFLAGS and LDFLAGS, respectively.

Markus

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