[magick-users] Problems with FFT transform compilation

[duc.sequere.aut.de.via.decede at imagemagick.org]

> fft.c:14:31: error: magick/MagickCore.h: No such file or directory

You may need to upgrade your version of ImageMagick.   Typically you find
MagickCore.h at /usr/local/include/magick/MagickCore.h or
/usr/local/include/MagickCore/magick/MagickCore.h.