Motivation for this change

cc @abbradar

https://fprint.freedesktop.org/

Release log for libfprint
2018-12-14: v0.99.0 release

• Library:

  • All the internal API for device driver writers is now covered by the
    documentation and has been enhanced to make it easier to write drivers
  • Update internal NBIS fingerprint data processing library to one that's
    nearly 10 years newer
  • Re-add accessor for minutia coordinates which was used in the very
    old fprint_demo program, but also by our new GTK+ test program (see below)
  • Fix a crash when too many minutiae were detected in a capture

• Drivers:

  • Support more devices in the Elan driver (added devices 04f3: 0903, 0907, 0c01-0c33 https://github.com/iafilatov/libfprint/blob/elan-github-msg/README.md), stability improvements

• Tools:

  • Add a test GTK+ application (see ${pkgs.libfprint}/bin/gtk-libfprint-test) that will eventually be used for testing
    drivers without modifying the OS installed version. Note that this
    application currently requires manually changing permissions of USB
    devices, this will be fixed when the infrastructure exists to access
    those devices without additional permissions, as a normal user.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.