title: Provide a path to gdal-config using a GDAL_CONFIG environment variable error while attempting to install Fiona
body: <p>This is the error I receive:</p>
  
  <blockquote>
    <p>A GDAL API version must be specified. Provide a path to gdal-config
    using a GDAL_CONFIG environment variable or use a GDAL_VERSION
    environment variable.</p>
  </blockquote>
  
  <p>after running the command:</p>
  
  <p><code>pip install Fiona</code></p>
  
  <p>from the command line. I had to install GDAL manually from a wheel file found here (python 3.7 32bit): <a href="https://www.lfd.uci.edu/~gohlke/pythonlibs/#gdal" rel="noreferrer">https://www.lfd.uci.edu/~gohlke/pythonlibs/#gdal</a></p>
  
  <p>I have looked for a solution to this but the suggested solution is to uninstall and reinstall GDAL through Conda, and I am unable to use Conda.</p>
  
  <p>If anyone could tell me simply where the <code>gdal-config</code> file is that would be fantastic so I can add it to my environment variables. A solution is also very welcome.</p>