Another issue I forgot:

On Windows, thumbs-conversion-program is initialized to "convert.exe".
Trouble is, there's already a convert.exe on the path, on %windir%.

I thought about using (on the windows part) something like

 (let ((exe (executable-find "convert.exe")))
         (and exe
              (string-match "ImageMagick"
                            (shell-command-to-string (concat exe " -version")))
              exe))

Is that appropriate for a defcustom initialization, or it is way too
much work and should be left to the user?

-- 
                    /L/e/k/t/u


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