On Mar 17, 2014, at 1:51 PM, John Peterson <jwpeter...@gmail.com> wrote:
>
>
>
> On Mon, Mar 17, 2014 at 11:11 AM, Boyce Griffith <griff...@cims.nyu.edu>
> wrote:
> I was wondering if I could get some information about how an installed build
> of libMesh expects to interact with the bundled libraries --- and
> specifically with NetCDF. Is -lmesh_METHOD meant also to provide all of the
> archives for the contrib libraries, or are there some special cases?
>
> The reason that I ask is that I regularly use ExodusII for I/O, and on most
> systems that I use, it seems like I do not need to include an explicit link
> to libnetcdf. Specifically, -lmesh_METHOD does the trick. (This is also
> what is suggested by 'libmesh-config --libs'.) However, when NetCDF is
> enabled, libnetcdf always appears to be installed along with the libMesh
> library archive, and on at least one system, I recently determined that I
> need to include -lnetcdf as a linker flag to avoid undefined symbols.
>
>
> Hmm... well it appears that netcdf is included as one of the dependency libs
> in libmesh_METHOD.la file,
>
> dependency_libs='
> /Users/username/projects/libmesh_git/install/lib/libnetcdf.la ...'
>
> so if you use libtool to link I think you get netcdf.
FWIW, I never use libtool to link, and still get netcdf in most cases. Maybe
libtool is being invoked behind the scenes on some systems?
-- Boyce
> On my system, netcdf does *not* appear to be included in the output of
> 'libmesh-config --libs' so this might be a bug for people that are not using
> libtool and are instead relying on the output of libmesh-config --libs to do
> their linking.
>
> Ben, any comments on this?
>
> --
> John
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