Re: FFTW usage in a new signal processing block

GNU Radio
1

On Thu, Aug 25, 2011 at 09:57:30AM -0300, Felipe F. wrote:

Hello All,

I’m trying to use FFTW in the development of a new signal processing
block.
The ./boostrap and ./configure commands work fine, but when I type the
make
command, I get the following error:

/usr/src/gnuradio/gr-deteccao/
lib/.libs/libgnuradio-deteccao.so: undefined
reference to fftw_execute' /usr/src/gnuradio/gr-deteccao/lib/.libs/libgnuradio-deteccao.so: undefined reference tofftw_plan_dft_1d’
/usr/src/gnuradio/gr-deteccao/lib/.libs/libgnuradio-deteccao.so: undefined
reference to `fftw_destroy_plan’
collect2: ld returned 1 exit status

It sounds weird because the fftw in already at the gnuradio files.

It’s solved. Just type ./configure LIBS=-lfftw3 that it works.