• built on NixOS
• /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31/bin/gm passed the binary check.
• /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31/bin/GraphicsMagick++-config passed the binary check.
• /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31/bin/GraphicsMagick-config passed the binary check.
• /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31/bin/GraphicsMagickWand-config passed the binary check.
• 4 of 4 passed binary check by having a zero exit code.
• 3 of 4 passed binary check by having the new version present in output.
• found 1.3.31 with grep in /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31
• directory tree listing: https://gist.github.com/9ff169d9cc7d04b5dbd633f635041b5a
• du listing: https://gist.github.com/36242efefb1c1c56a5b7ecb0b5e4078e

85 total rebuild path(s)

26 package rebuild(s)

26 x86_64-linux rebuild(s)
22 i686-linux rebuild(s)
15 x86_64-darwin rebuild(s)
22 aarch64-linux rebuild(s)

First fifty rebuilds by attrpath
darktable
fastlane
fileshelter
gimp-with-plugins
gimpPlugins.gmic
gitlab
gitlab-ee
glsurf
gmic
gmic_krita_qt
graphicsmagick
graphicsmagick-imagemagick-compat
graphicsmagick_q16
herwig
hydron
mcgrid
meguca
photivo
photoqt
python27Packages.rivet
rivet
sherpa
thepeg
wt
wt3
wt4

Either download from Cachix:

nix-store -r /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31 \
  --option binary-caches 'https://cache.nixos.org/ https://r-ryantm.cachix.org/' \
  --option trusted-public-keys '
  r-ryantm.cachix.org-1:gkUbLkouDAyvBdpBX0JOdIiD2/DP1ldF3Z3Y6Gqcc4c=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '

(r-ryantm's Cachix cache is only trusted for this store-path realization.)

Or, build yourself:

nix-build -A graphicsmagick https://github.com/r-ryantm/nixpkgs/archive/59e9d726470eaa42ed06e22385eefef9ee6c2856.tar.gz

After you've downloaded or built it, look at the files and if there are any, run the binaries:

ls -la /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31
ls -la /nix/store/4rp9fbizk2pdakwsfryz2r85b2mg063g-graphicsmagick-1.3.31/bin