NetCDF 4 c++ headers.

[SiggyF]

Starting from netCDF 4.1.1 netcdf has a new c++ interface. This can be build using:

./configure --enable-cxx-4 [plus other options]

Can you add this option to the netCDF portfile. I think the following should be added:

variant cxx-4 description {enable netCDF-4 c++ interface} {

configure.args-delete --disable-cxx-4 configure.args-append --enable-cxx-4

}

Or maybe it makes more sense to add it to the netcdf4 variant. For details about the new c++ interface, see: ​http://www.unidata.ucar.edu/software/netcdf/docs/cxx4/