Building and Installing FFTW for GNU Radio
GNU Radio requires a shared, single-precision version of FFTW. Many contemporary GNU/Linux systems come with FFTW suitably packaged. Systems using pkgsrc can install math/fftwf. In the event that no package is readily available on your platfrom, FFTW is easily built from source on any Linux, Cygwin, or MinGW/MSYS system. These instructions were written for Cygwin and MinGW, but should work on any of these systems.
fftw-3.2.2.tar.gz from http://www.fftw.org/download.html to
C:\cygwin\usr\src on a default Cygwin installation or
C:\msys\1.0\src on a default MSYS installation).
(2) Build and install with (see note below for MinGW):
$ cd /usr/src $ tar zxf fftw-3.2.2.tar.gz $ cd fftw-3.1.2 $ ./configure --enable-float --enable-sse --enable-3dnow --enable-shared --disable-static $ make $ make check $ make install
For MinGW you need more options on the
$ ./configure --with-our-malloc16 --enable-threads --with-combined-threads --enable-float --enable-sse --enable-shared --disable-static
FFTW is installed under
/usr/local/* by default.
- You can use a directory other than
/usr/srcif you prefer
- To install FFTW somewhere other than
./configure(but be sure that GNU Radio's
./configurecan find it)
- Newer versions of FFTW should work as they become available
- For more information on FFTW see http://www.fftw.org