You will need libfftw version 2 or 3 installed with 32 bit float support (eg. for FFTW3 use --enable-float), for FFTW recommend you specify the appropriate SIMD instruction set for your CPU with --enable-sse, --enable-sse2, --enable-k7 or --enable-altivec.
You can get FFTW from http://www.fftw.org/.
Install with:
autoreconf -i
./configure
make
sudo make install
This code is normally built from XML source, using Perl and XML::Parser. You will need a copy of Perl and XML::Parser installed.
The homepage for this project is http://plugin.org.uk/
Please send bug reports or comments to steve@plugin.org.uk, except for bugs relating to the gverb plugin, for that please send bug reports etc. to Juhana Sadeharju, kouhia_at_nic.funet.fi.