I'm new in C dave developement.
I'm working on the xmc1302-t038x0200 from infinéon
I have to do an FFT on a doppler radar signal

When i try to include the fftw3.h i got error for all the function called from the fftw3.h. (C:\Users\Recherche\Desktop\FFTW\Debug/../main.c:36: undefined reference to `fftw_malloc')
I already past the file fftw3.h in my file directory.
Can someone help pls..
(sorry for my english)