################################ FAQ - Frequently asked questions ################################ .. contents:: :local: What can I do if I can't install the third-party libraries from distribution packages? ====================================================================================== This can be the case if the user does not have admin rights and the sysadmins would not want to provide the libraries. In this case, a workaround is to install the necessary libraries from source into a user directory, following these steps: Steps to install libraries from source: 1. `Read Emoslib installation instructions <https://software.ecmwf.int/wiki/display/EMOS/Emoslib>`_ 2. `Read ECMWF blog about gfortran <https://software.ecmwf.int/wiki/display/SUP/2015/05/11/Building+ECMWF+software+with+gfortran>`_ 3. `Install FFTW <http://www.fftw.org>`_ 4. `Install EMOSLIB <https://software.ecmwf.int/wiki/display/EMOS/Emoslib>`_ (execute ``make`` two times! One time without any options, and another time with the single-precision option.) 5. `Install ECCODES <https://software.ecmwf.int/wiki/display/ECC>`_ 6. Register for MARS access (:ref:`ref-registration`) 7. Install Web API's `CDS API <https://cds.climate.copernicus.eu/api-how-to>`_ and `ECMWF Web API <https://confluence.ecmwf.int/display/WEBAPI/ECMWF+Web+API+Home>`_ 8. Check whether LD_LIBRARY_PATH environment variable contains the paths to all the libs 9. Check available Python packages (e.g. ``import eccodes`` / ``import grib_api`` / ``import ecmwfapi``) 10. Start test retrieval (:ref:`ref-test-local`) 11. Install ``flex_extract`` (:doc:`../installation`) .. caution:: - use the same compiler and compiler version all the time - don't forget to set all Library paths in the LD_LIBRARY_PATH environment variable - adapt the ``flex_extract`` makefile .. toctree:: :hidden: :maxdepth: 2