Erik de Castro Lopo wrote:
but restricted to Intel and AMD CPUs.
This is wrong. I've just successfully compiled and run it on a PPC G3.
FFTW compiles and runs on anything with a C compiler.
There is no PPC specific code in the sources, so djbfft did compile and run on PPC just by virtue of a C compiler. http://cr.yp.to/djbfft/install.html: "The djbfft installation procedure assumes that you have a UNIX system with gcc." That probably means that it won't build on Windows without cygwin or maybe MinGW; but likely that's just an issue of the build process (which is depending on make and sh), which isn't a big deal. Possibly it doesn't run competitively on architectures he hasn't optimized for. If you have valuable information about this, please provide it. Christian.