No FORTRAN compiler appears to be included in Xcode, so I need to install it if I haven’t done so. I installed GFortran. In the configure statement below, set F77 to gfortran.

Installing from Fink

For FFTW version 3.x, do:

$ fink install fftw3 fftw3-shlibs

The library will be available under /sw/lib.

Installing from Source

The version of FFTW we use here is 3.2.2. Follow this:

$ mkdir tmp
$ cd tmp
$ wget http://www.fftw.org/fftw-3.2.2.tar.gz
$ tar -xvzf fftw-3.2.2.tar.gz
$ cd fftw-3.2.2
$ ./configure --prefix=/usr/local/fftw-3.2.2 --enable-threads \
    CC="gcc -arch i386 -arch x86_64" CXX="g++ -arch i386 -arch x86_64" \
    CPP="gcc -E" CXXCPP="g++ -E" F77=gfortran
$ make
$ sudo make install
$ sudo ln -s /usr/local/fftw-3.2.2 /usr/local/fftw

This will install FFTW under /usr/local/fftw-3.2.2. If a single precision version also needs to be installed, add --enable-single to the configure statement above and do the configure/make/make install sequence again (it’s a good idea to run make clean before the second time around though).

Update History

November 24, 2010 – Added the Fink version. Changed the installation directory to /usr/local/fftw to avoid potential conflict later.