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Unable to open EPSG support file gcs.csv

See original GitHub issue

This issue has the same symptoms as https://github.com/mapbox/rasterio/issues/1539:

In [1]: import fiona                                                                                                                                                                                                

In [2]: ds = fiona.open('aerialway-line.shp')                                                                                                                                                                       

In [3]: ds.crs                                                                                                                                                                                                      
ERROR 4: Unable to open EPSG support file gcs.csv.  Try setting the GDAL_DATA environment variable to point to the directory containing EPSG csv files.
ERROR 6: No translation for an empty SRS to PROJ.4 format is known.
Out[3]: {}

In [4]: fiona.__version__                                                                                                                                                                                           
Out[4]: '1.8.0'

The open function is decorated by ensure_env_with_credentials but it seems doesn’t work.