MI - Fimex
The fimex-source comes with a fimex.f90 fortran interface in modules/F90/fimex.f90. This files should be added to your fortran program, compiled with a fortran:2003 aware compiler and linked with fimex-library ''-lfimex''. Documentatation of the interface can be found in fimex.f90. Of most interest are the methods belonging to the high-level interface Fimex::FimexIO.
An example can be found in modules/F90/fortran_test.f90