Package: graphicsmagick-imagemagick-compat Version: 1.4+really1.3.41-1 Hi!
I noticed that from the latest version of https://packages.debian.org/sid/all/graphicsmagick-imagemagick-compat/filelist the symlink to 'compare' is missing. I added it manually on my system with: sudo ln -s gm /usr/bin/compare At least basic case works just fine: compare -file result.png before.jpg after.jpg