[Opm] Build of intersectio.cpp

[Phani Narasimham]

Markus B,

Thank you very much sir..

Will check and update you this week.

Thanks,
Phani

On Mon, Jul 6, 2020 at 1:10 PM Markus Blatt <markus.blatt at opm-op.com> wrote:

> Hi,
>
>
> On Mon, Jul 06, 2020 at 08:48:51AM +0530, Phani Narasimham wrote:
> > Build of intersection.cpp in cppgrid is failing with integral_constant
> > error.
> >
> > If i write a sample .cpp file using integral_constant the compiler
> > succeeds and builds the executable. ( g++ sample.cpp)
> >
> > I am building opm on Ubuntu 16 and gcc 8.04
> >
> > Where as building opm with make fails at intersection.cpp that
> > integral_constant not known.
> >
>
> This should of course work (at least for the releases) as we have prebuilt
> packages for Ubuntu. But I am not sure which compiler is used for them.
>
> You are saying that you are using Ubuntu 16.04 with gcc-8.04. That means
> that
> you must be using a non-standard compiler for that system. What I am
> wondering
> is whether you specify the compiler to use to the build-system. If you do
> not
> do that, I would assume that the standard compiler gcc-4.5 will be used.
> Maybe
> that one does not support integral_constant in the standard location.
> I would recommend to use the newest available package of the compiler
> (ggc-5
> and g++-5 on xenial).
>
> You need to tell Cmake to use the correct compiler by calling it like this:
> "cmake -DCMAKE_CXX_COMPILER=/path/to/g++/compiler
> -DCMAKE_C_COMPILER=/path/to/gcc/compiler ..."
> otherwise it will use gcc-4.5.
>
> If that does not help, please post your CMakeCache.txt file and the output
> of
> "make VERBOSE=1". Please also tell which version of OPM and DUNE you are
> using.
>
> Please be aware that if you use e.g. a compiler not directly supported by
> your
> platform, it is recommend to also compile all the dependencies with that
> compiler.
>
> Also note that the next release might not support Ubuntu 16.04 anymore.
>
> Cheers,
>
> Markus
>
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>


-- 
Phani