conda-forge netCDF nc-config --libs produces incorrect results

[czender]

Issue: The Conda-forge netCDF nc-config behaves strangely. The response to the --libs argument prepends and extra path:

zender@aerosol:~$ /Users/zender/anaconda/bin/nc-config --libs
-L/Users/zender/anaconda//Users/zender/anaconda/lib -lnetcdf -lmfhdf -ldf -lhdf5_hl -lhdf5 -lc++ -lpthread -lz -ldl -lm -lcurl
zender@aerosol:~$ /Users/zender/anaconda/bin/nc-config --cflags
-I/Users/zender/anaconda/include

The error is the partially duplicated path immediately following -L. The same occurs with Conda-forge nc-config on my Fedora machine, but when I build netCDF from scratch, nc-config behaves correctly:

zender@skyglow:~$ /usr/local/bin/nc-config --libs
-L/usr/local/lib -lnetcdf

Hence this seems like an issue with the conda-forge netcdf feedstock. Can anyone else reproduce this behavior?

Charlie

Environment (conda list):

``` $ conda list zender@aerosol:~$ conda list # packages in environment at /Users/zender/anaconda: # # Name Version Build Channel appdirs 1.4.3 py_1 conda-forge appnope 0.1.0 py27_0 conda-forge asn1crypto 0.24.0 py_1 conda-forge astropy 2.0.8 py27_0 conda-forge atomicwrites 1.1.5 py27_0 conda-forge attrs 18.1.0 py_1 conda-forge automat 0.7.0 py_1 conda-forge backports 1.0 py27_1 conda-forge backports.functools_lru_cache 1.5 py_1 conda-forge backports.shutil_get_terminal_size 1.0.0 py_3 conda-forge backports_abc 0.5 py27_0 conda-forge blas 1.0 mkl bleach 2.1.4 py_1 conda-forge bokeh 0.13.0 py27_0 conda-forge bottleneck 1.2.1 py27h7eb728f_1 conda-forge ca-certificates 2018.8.24 ha4d7672_0 conda-forge cartopy 0.16.0 py27h81b52dc_1 conda-forge cdo 1.9.4 h1d09544_1 conda-forge certifi 2018.8.24 py27_1 conda-forge cffi 1.11.5 py27h5e8e0c9_1 conda-forge cftime 1.0.0 py27h7eb728f_1 conda-forge chardet 3.0.4 py27_3 conda-forge clangdev 6.0.1 default_1 conda-forge click 6.7 py_1 conda-forge cloudpickle 0.5.3 py_0 conda-forge conda 4.5.11 py27_0 conda-forge conda-env 2.6.0 1 conda-forge configparser 3.5.0 py27_0 conda-forge constantly 15.1.0 py_0 conda-forge cryptography 2.3 py27hdffb7b8_0 conda-forge cryptography-vectors 2.3 py27_1 conda-forge curl 7.61.0 h93b3f91_1 conda-forge cycler 0.10.0 py_1 conda-forge cyordereddict 1.0.0 py27h470a237_2 conda-forge cython 0.28.5 py27hfc679d8_0 conda-forge cytoolz 0.9.0.1 py27h470a237_0 conda-forge dask 0.18.2 py_0 conda-forge dask-core 0.18.2 py_0 conda-forge decorator 4.3.0 py_0 conda-forge distributed 1.22.1 py27_0 conda-forge eccodes 2.8.0 0 conda-forge ecmwf_grib 1.27.0 0 conda-forge entrypoints 0.2.3 py27_2 conda-forge enum34 1.1.6 py27_1 conda-forge esmf 7.1.0r 1 conda-forge expat 2.2.5 hfc679d8_1 conda-forge fftw 3.3.8 h470a237_0 conda-forge freetype 2.8.1 hfa320df_1 conda-forge funcsigs 1.0.2 py_2 conda-forge functools32 3.2.3.2 py27_2 conda-forge futures 3.2.0 py27_0 conda-forge geos 3.6.2 hfc679d8_2 conda-forge gsl 2.2.1 h002c638_3 h5json 1.1.0 h5netcdf 0.6.1 py_0 conda-forge h5py 2.7.1 h5py 2.8.0 py27h470a237_0 conda-forge hdf4 4.2.13 0 conda-forge hdf5 1.10.1 2 conda-forge heapdict 1.0.0 py27_0 conda-forge html5lib 1.0.1 py_0 conda-forge hyperlink 17.3.1 py_0 conda-forge icu 58.2 hfc679d8_0 conda-forge idna 2.7 py27_2 conda-forge incremental 17.5.0 py_0 conda-forge intel-openmp 2018.0.3 0 ipaddress 1.0.22 py_1 conda-forge ipykernel 4.8.2 py27_0 conda-forge ipython 5.8.0 py27_0 conda-forge ipython_genutils 0.2.0 py_1 conda-forge ipywidgets 7.4.0 py_0 conda-forge jasper 1.900.1 4 conda-forge jaws 0.4.8 py27_0 conda-forge jinja2 2.10 py_1 conda-forge joblib 0.12.2 py_0 conda-forge jpeg 9c h470a237_0 conda-forge jsonschema 2.6.0 py27_1 conda-forge jupyter 1.0.0 py_1 conda-forge jupyter_client 5.2.3 py_1 conda-forge jupyter_console 5.2.0 py27_0 conda-forge jupyter_core 4.4.0 py_0 conda-forge kiwisolver 1.0.1 py27_1 conda-forge krb5 1.14.6 0 conda-forge libcxx 6.0.1 0 conda-forge libffi 3.2.1 3 conda-forge libgcc 4.8.5 1 libgfortran 3.0.1 h93005f0_2 libiconv 1.15 h470a237_1 conda-forge libnetcdf 4.6.1 2 conda-forge libpng 1.6.34 ha92aebf_1 conda-forge libsodium 1.0.16 0 conda-forge libssh2 1.8.0 h5b517e9_2 conda-forge libtiff 4.0.9 he6b73bb_1 conda-forge libxml2 2.9.8 h422b904_2 conda-forge libxslt 1.1.32 h88dbc4e_1 conda-forge linecache2 1.0.0 py27_0 conda-forge llvm-meta 6.0.1 0 conda-forge llvmdev 6.0.1 hf8ce74a_2 conda-forge locket 0.2.0 py_2 conda-forge lxml 4.2.4 py27hc9114bc_0 conda-forge markupsafe 1.0 py27_0 conda-forge matplotlib 2.2.2 py27_1 conda-forge mistune 0.8.3 py27h470a237_2 conda-forge mkl 2018.0.3 1 mkl_fft 1.0.6 py27_0 conda-forge mkl_random 1.0.1 py27_0 conda-forge more-itertools 4.2.0 py27_1 conda-forge mpi 1.0 mpich conda-forge mpich 3.2.1 h26a2512_4 conda-forge msgpack-python 0.5.6 py27h2d50403_2 conda-forge nbconvert 5.3.1 py_1 conda-forge nbformat 4.4.0 py_1 conda-forge nco 4.7.5 1 conda-forge ncurses 6.1 hfc679d8_1 conda-forge netcdf-fortran 4.4.4 7 conda-forge netcdf4 1.4.0 py27_0 conda-forge notebook 5.6.0 py27_0 conda-forge numpy 1.15.1 py27h648b28d_0 numpy-base 1.15.1 py27h8a80b8c_0 olefile 0.45.1 py_1 conda-forge openblas 0.2.20 8 conda-forge openssl 1.0.2o h470a237_1 conda-forge owslib 0.16.0 py_0 conda-forge packaging 17.1 py_0 conda-forge pandas 0.23.4 py27hf8a1672_0 conda-forge pandoc 2.2.2 hde52d81_1 conda-forge pandocfilters 1.4.2 py_1 conda-forge partd 0.3.8 py_1 conda-forge pathlib2 2.3.2 py27_0 conda-forge pexpect 4.6.0 py27_0 conda-forge pickleshare 0.7.4 py27_0 conda-forge pillow 5.2.0 py27h2dc6135_1 conda-forge pip 18.0 py27_1 conda-forge pluggy 0.7.1 py_0 conda-forge proj4 4.9.3 5 conda-forge prometheus_client 0.3.0 py_0 conda-forge prompt_toolkit 1.0.15 py_1 conda-forge psutil 5.4.6 py27_0 conda-forge ptyprocess 0.6.0 py27_0 conda-forge py 1.5.4 py_0 conda-forge pyasn1 0.4.4 py_0 conda-forge pyasn1-modules 0.2.1 py_0 conda-forge pycosat 0.6.3 py27h470a237_1 conda-forge pycparser 2.18 py_1 conda-forge pycrypto 2.6.1 py27_1 conda-forge pyepsg 0.3.2 py_1 conda-forge pygments 2.2.0 py_1 conda-forge pyhamcrest 1.9.0 py_2 conda-forge pyopenssl 18.0.0 py27_0 conda-forge pyparsing 2.2.0 py_1 conda-forge pyproj 1.9.5.1 py27_0 conda-forge pyqt 5.6.0 py27h8210e8a_7 conda-forge pyshp 1.2.12 py_0 conda-forge pysocks 1.6.8 py27_1 conda-forge pytest 3.7.1 py27_0 conda-forge python 2.7.15 h43f7c74_0 conda-forge python-dateutil 2.7.3 py_0 conda-forge pytz 2018.5 py_0 conda-forge pyyaml 3.12 py27_1 conda-forge pyzmq 17.1.2 py27hae99301_0 conda-forge qt 5.6.2 hd4c90f3_9 conda-forge qtconsole 4.4.1 py27h8a2030e_0 conda-forge readline 7.0 haf1bffa_1 conda-forge requests 2.19.1 py27_1 conda-forge ruamel_yaml 0.15.46 py27h470a237_0 conda-forge scandir 1.7 py27h470a237_1 conda-forge scipy 1.1.0 py27hf1f7d93_0 send2trash 1.5.0 py_0 conda-forge service_identity 17.0.0 py_0 conda-forge setuptools 40.0.0 py27_1 conda-forge shapely 1.6.4 py27h164cb2d_1 conda-forge simplegeneric 0.8.1 py_1 conda-forge singledispatch 3.4.0.3 py27_0 conda-forge sip 4.18.1 py27hfc679d8_0 conda-forge six 1.11.0 py27_1 conda-forge six 1.10.0 sortedcontainers 2.0.4 py_1 conda-forge sqlite 3.24.0 h2f33b56_0 conda-forge ssl_match_hostname 3.5.0.1 py27_1 conda-forge subprocess32 3.5.2 py27_0 conda-forge tblib 1.3.2 py_1 conda-forge terminado 0.8.1 py27_0 conda-forge testpath 0.3.1 py27_0 conda-forge tk 8.6.8 0 conda-forge toolz 0.9.0 py_0 conda-forge tornado 5.1 py27h470a237_1 conda-forge traceback2 1.4.0 py27_0 conda-forge traitlets 4.3.2 py27_0 conda-forge twisted 18.7.0 py27h470a237_1 conda-forge udunits2 2.2.26 1 conda-forge unittest2 1.1.0 py_0 conda-forge urllib3 1.23 py27_1 conda-forge wcwidth 0.1.7 py_1 conda-forge webencodings 0.5.1 py27_0 conda-forge wheel 0.31.1 py27_1 conda-forge widgetsnbextension 3.4.0 py27_0 conda-forge xarray 0.10.8 py27_0 conda-forge xz 5.2.4 h470a237_0 conda-forge yaml 0.1.7 h470a237_1 conda-forge zeromq 4.2.5 hfc679d8_5 conda-forge zict 0.1.3 py_0 conda-forge zlib 1.2.11 h470a237_3 conda-forge zope.interface 4.5.0 py27h470a237_0 conda-forge ```

Details about conda and system ( conda info ):

``` $ conda info (I could not find the conda-info command) ```

[xylar]

@czender, I have seen this issue as well in the past.

[ocefpaf]

This is a duplicate of https://github.com/conda-forge/libnetcdf-feedstock/issues/57 let's keep the discussion there.