ImageMagick 6 vs 7 ?

[fccm]

These bindings are not compatible with ImageMagick-7 anymore.
Should we include an ImageMagick-6 version inside the opam package? (like the raylib opam package does)

These bindings are quite old, so if we include ImageMagick sources in the bindings sources it should also be an old version.

It seems that ImageMagick-6.5.4-10 was released in 2009, but I get errors when I try to compile it.
If we include this version, it should be patched.

https://download.imagemagick.org/ImageMagick/download/releases/

We could also update the bindings to the ImageMagick-7 API.

Or should we switch to GraphicsMagick?

ftp://ftp.graphicsmagick.org/pub/GraphicsMagick/

[fccm]

It seems that ocaml-imagemagick-0.34 was compatible with ImageMagick-6.7.5-10

https://download.imagemagick.org/ImageMagick/download/releases/ImageMagick-6.7.5-10.tar.xz

[fccm]

I see that there are still about 450 downloads every month for the source tarball. So I decided to give some love to this package, even though I'm not using it anymore since a while.

I decided to switch to GraphicsMagick which is a fork which provide a more stable API.