I am having trouble installing the FFTW library on Windows. I am following instructions from the following link:

<http://www.fftw.org/fftw3_doc/Installation-on-non_002dUnix-systems.html#Installation-on-non_002dUnix-systems>

1)
After downloading minGW 64-bit, I was wondering how I would access the "kernel" and "simd-support" directory to compile the c files as recommended.

2)
As I am unfamiliar with this library, is there a better way of installing the library using the command line?

As written in this link, under the subtitle "building FFTW3 under minGW":

<http://www.fftw.org/install/windows.html>

when I run the following commmand:

```
./configure --with-our-malloc16 --with-windows-f77-mangling --enable-shared --disable-static --enable-threads --with-combined-threads --enable-portable-binary --enable-sse2 --with-incoming-stack-boundary=2

```

I get:

```
'.' is not recognized as an internal or external command

```

any help would be much appreciated