[Discuss-gnuradio] CVS builds now require FFTW 3.x

[Eric Blossom]

Hi Folks,

For those of you tracking the CVS head, I've made changes such that we
now require FFTW 3.x, configured with the --enable-float option.

3.x is faster and takes advantage of the SIMD instructions available
on the x86 and PowerPC.

You can get FFTW 3.0.1 at www.fftw.org.

I configured it with

  ./configure --enable-float --enable-sse --enable-k7

which gives support for SSE and 3DNow! and the single precision interface.

Eric