# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack import *


class NetcdfCxx(AutotoolsPackage):
    """Deprecated C++ compatibility bindings for NetCDF.
    These do NOT read or write NetCDF-4 files, and are no longer
    maintained by Unidata.  Developers should migrate to current
    NetCDF C++ bindings, in Spack package netcdf-cxx4."""

    homepage = "http://www.unidata.ucar.edu/software/netcdf"
    url      = "http://www.unidata.ucar.edu/downloads/netcdf/ftp/netcdf-cxx-4.2.tar.gz"

    version('4.2', sha256='95ed6ab49a0ee001255eac4e44aacb5ca4ea96ba850c08337a3e4c9a0872ccd1')

    depends_on('netcdf')

    variant(
        'netcdf4', default=True, description='Compile with netCDF4 support')

    @property
    def libs(self):
        shared = True
        return find_libraries(
            'libnetcdf_c++', root=self.prefix, shared=shared, recursive=True
        )

    def configure_args(self):
        args = []
        if '+netcdf4' in self.spec:
            # There is no clear way to set this via configure, so set the flag
            # explicitly
            args.append('CPPFLAGS=-DUSE_NETCDF4')
        # Add these to LDFLAGS explicitly, so the linker doesn't accidentally
        # use system versions
        ldflags = [
            self.spec['netcdf'].libs.search_flags,
            self.spec['hdf5'].libs.search_flags,
        ]
        args.append('LDFLAGS=' + ' '.join(ldflags))
        return args
