Re: [Libmesh-users] Fwd: libpetsc.so: undefined reference to `nc_def_var_deflate'

[John P. <jwp...@gm...>]

On Tue, Jul 5, 2016 at 12:57 PM, Ata ollah Mesgarnejad <
a.m...@gm...> wrote:

> Apologies forgot to CC the list.
>


You are explicitly doing --download-netcdf=1 when building PETSc.  Since
this is the first I'm seeing it, what are you using in PETSc that requires
NetCDF?

The linking error is probably caused because libmesh is using the NetCDF
header files that come with libmesh, but subsequently linking with the
NetCDF that you built in PETSc.

We could probably fix this in a manner similar to the way we use PETSc's
Metis/ParMetis when it is available, but it will require some testing to
get right, and will definitely be an "odd" build configuration that not
many people use/may regress without warning.

-- 
John