mkl fft3w choosing PRECISION SINGLE OR DOUBLE

Hi,

I have installed Intel Composer XE 14.0.2.144.

I can compile fft2w 'single' precision version and 'double' precision version adding  a  compilation parameter:

[PRECISION={MKL_DOUBLE|MKL_SINGLE}]

I do not known how to do the same in fftw3. The make command does not show me this option.

So I do not known how to compile my apps in single or double precision linking mkl fftw3 libraries.

Thanks in advance.