The most reliable way to get FFTW on Windows is to download the precompiled 64-bit or 32-bit DLLs directly from the official FFTW Windows Download Page .
Copy this into your project's output folder (where the .exe lives). fftw3 windows download
Are you planning to use FFTW with , MinGW , or perhaps a Python wrapper? How to get FFTW++ working on windows? (for dummies) The most reliable way to get FFTW on
(Note: Use libfftw3f-3.def for single-precision or libfftw3l-3.def for long-double precision) . How to get FFTW++ working on windows
The download only includes .dll and .def files. To use FFTW with compilers like , you must create the .lib files yourself using the lib.exe tool.
To use the library in a C/C++ project, you need to tell your IDE where to find the header and library files. Required File(s) Action in Visual Studio/IDE fftw3.h Add to Additional Include Directories . Linker libfftw3-3.lib Add to Additional Dependencies under Linker settings. Runtime libfftw3-3.dll
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