"chapter">8 Calling FFTW from Legacy Fortran</h2>

<p><a name="index-Fortran-interface-580"></a>
This chapter describes the interface to FFTW callable by Fortran code
in older compilers not supporting the Fortran 2003 C interoperability
features (see <a href="Calling-FFTW-from-Modern-Fortran.html#Calling-FFTW-from-Modern-Fortran">Calling FFTW from Modern Fortran</a>).  This interface
has the major disadvantage that it is not type-checked, so if you
mistake the argument types or ordering then your program wi