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Adalbert Hanßen
Asked: 2022-02-13 09:30:54 +0800 CST

can't compile libfprint as a meson project

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My ultimate goal: use the fingeprint reader of a Lenovo T430 on Ubuntustdio 20.04.

Type oft the device, according to lsusb:

Bus 001 Device 003: ID 147e:2020 Upek TouchChip Fingerprint Coprocessor (WBF advanced mode).

According to https://fprint.freedesktop.org/supported-devices.html they support this device.

I downloaded libfprint-master.tar.gz using the button Download from https://gitlab.freedesktop.org/libfprint/libfprint.git and unzipped it to some directory libfprintf. After unzipping, I find another directory libfprint-master in it and there is among others a directory builddir in that one.

After installing python and meson-0.61.1, I also added

export PATH="$PATH:/home/verwalter/.local/bin"

to ~/.profile in order to call meson builddir without explicitly giving the full path to meson. According to https://mesonbuild.com/Quick-guide.html#compiling-a-meson-project I should

  1. cd to the root directory of the source code. I did so:

    cd /home/verwalter/Downloads/libfprint/libfprint-master

  2. apply meson builddir && cd builddir from there

  3. do further steps.

Step 2 failed with these messages:

The Meson build system
Version: 0.61.1
Source dir: /home/verwalter/Downloads/libfprint/libfprint-master
Build dir: /home/verwalter/Downloads/libfprint/libfprint-master/builddir
Build type: native build
Project name: libfprint
Project version: 1.94.2
C compiler for the host machine: cc (gcc 9.3.0 "cc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0")
...
meson.build:68: WARNING: Consider using the built-in warning_level option instead of using "-Wall".
meson.build:69: WARNING: Consider using the built-in warning_level option instead of using "-Wall".
Found pkg-config: /usr/bin/pkg-config (0.29.1)
...
Run-time dependency gobject-2.0 found: YES 2.64.6
Did not find CMake 'cmake'
Found CMake: NO
Run-time dependency gusb found: NO (tried pkgconfig)

meson.build:84:0: ERROR: Dependency "gusb" not found, tried pkgconfig

A full log can be found at /home/verwalter/Downloads/libfprint/libfprint-master/builddir/meson-logs/meson-log.txt

What did I miss? What's the next step to correct this?

software-installation

1 Answers

  1. First of all you should know that this package is already available in official repositories with 1.90 version. So if you are not developer and do not want to patch the source code, then you can simply install the binaries by

    sudo apt-get update
sudo apt-get install libfprint-2-2 libfprint-2-tod1

    and then find a ways to test your fingerprint reader using this version of library.

    If you need newer 1.94.1 version of fprintd on Ubuntu 20.04 LTS you can proceed without compilation by adding Zorin OS's PPA by:

    sudo add-apt-repository ppa:zorinos/fprint
sudo apt-get update
sudo apt-get dist-upgrade # to get newer dependencies

    If you are sure about the compilation - read below.
    You have to start with getting build-dependencies of already packaged https://packages.ubuntu.com/source/focal-updates/libfprint package by following below steps:

    1. Enable Source Code repositories (deb-src) in Software & Updates (software-properties-gtk)

    2. Get build-dependencies

      sudo apt-get update
sudo apt-get build-dep libfprint

    3. Сompile libfprint 1.94.3 from Git again.

      sudo apt-get install git cmake udev libudev-dev libgudev-1.0-dev
cd ~/Downloads
git clone https://github.com/freedesktop/libfprint -b v1.94.3
cd libfprint
meson build
meson test -C build --print-errorlogs
sudo meson install -C build
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