Installing FFTW2 Interface Wrappers
Wrappers are delivered as source code, which you must compile to build the wrapper library. Then you can substitute the wrapper and libraries for the FFTW library. The source code for the wrappers, makefiles, and files with lists of wrappers are located in the directory.
Intel® oneAPI Math Kernel Library
.\interfaces\fftw2xc
subdirectory in the Intel® oneAPI Math Kernel Library