View the most recent changes for the fftw port at: fftw.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for fftw.
The raw portfile for fftw 2.1.5 is located here:
http://fftw.darwinports.com/dports/math/fftw/Portfile
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Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/fftw

The fftw Portfile 41657 2008-11-08 15:56:14Z mcalhoun macports.org $

PortSystem 1.0

Name: fftw
Version: 2.1.5
Revision: 2
Category: math devel
Maintainers: nomaintainer
Description: Fast C routines to compute the Discrete Fourier Transform
Long Description: FFTW is a C subroutine library for computing the Discrete Fourier Transform (DFT) in one or more dimensions, of both real and complex data, and of arbitrary input size. We believe that FFTW, which is free software, should become the FFT library of choice for most applications. Our benchmarks, performed on a variety of platforms, show that FFTW's performance is typically superior to that of other publicly available FFT software. Moreover, FFTW's performance is portable: the program will perform well on most architectures without modification.

Platform: darwin

Homepage: http://www.fftw.org/
Master Sites: ${homepage} ftp://ftp.fftw.org/pub/fftw/ ftp://ftp.kusastro.kyoto-u.ac.jp/pub/src/GNU/fftw/

Checksums: md5 8d16a84f3ca02a785ef9eb36249ba433 sha1 12020b58edc1b0490a83db4aa912fac5dfdfb26b rmd160 723308722d76c12710db6473979adf8d086b0909
configure.args --enable-type-prefix --enable-threads --disable-fortran --infodir=${prefix}/share/info

Variant: fortran description {include fortran-callable wrappers} {
depends_lib-append port:g95
configure.f77 ${prefix}/bin/g95
configure.args-delete --disable-fortran
configure.args-append --enable-fortran
}

platform darwin {
if {[variant_isset fortran]} {
patchfiles-append patch-configure_darwin
}
}

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/fftw
%  sudo port install fftw  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching fftw
--->  Verifying checksum for fftw
--->  Extracting fftw
--->  Configuring fftw
--->  Building fftw with target all

--->  Staging fftw into destroot

--->  Installing fftw

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using fftw with these commands:

%  man fftw
%  apropos fftw
%  which fftw
%  locate fftw

 Where to find more information: