FindMagick.cmake not working with ImageMagick

[rolanddenis]

It seems that the FindMagick.cmake script is designed to find GraphicsMagick but not ImageMagick. Even the error message (when not found) is about the missing GraphicsMagick headers.

For example, with Ubuntu 16.04 and libmagick++-dev installed, the Magick++.h file is in /usr/include/ImageMagick-6/ that is not part of the searching paths of the CMake script. Specifying MAGICK_LOCATION environment variable doesn't work either...