How to use fftw library in application?

Hello,
I am using bitbake and openembedded.
The fftw.ipk packages are generate using bitbake command
I am using fftw recipe.
1.I install fftw .ipk package using opkg install fftwf .ipk on
angstrom beagle board.

2.I decompressed this fftw.ipk package on host(ubuntu) pc.

How to use this fftw library in application?

Thanks

Regards,
Gaurang

Please refer to this thread, just replace the library referenced with
your own
http://groups.google.com/group/beagleboard/browse_thread/thread/321212aa3de5a239/d9cac5692a1f138d?hl=en

-Jesse