gnu: Add bolt.

* gnu/packages/linux.scm (bolt): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/linux.scm

@@ -143,6 +143,7 @@ (define-module (gnu packages linux)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pciutils)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages polkit)
   #:use-module (gnu packages popt)
   #:use-module (gnu packages pulseaudio)
   #:use-module (gnu packages python)
@@ -2868,6 +2869,56 @@ (define-public iptables
 Both commands are targeted at system administrators.")
     (license license:gpl2+)))
 
+(define-public bolt
+  (package
+    (name "bolt")
+    (version "0.9.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.freedesktop.org/bolt/bolt")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1h48qmqxhjq9gxv5gf78cqm5wadmnhvc9bkd02zya77rh3pf6y3r"))))
+    (build-system meson-build-system)
+    (arguments
+     (list #:configure-flags '(list "--localstatedir=/var")
+           #:glib-or-gtk? #t ;To wrap binaries and/or compile schemas
+           #:phases #~(modify-phases %standard-phases
+                        (add-after 'unpack 'replace-directories
+                          (lambda* (#:key outputs #:allow-other-keys)
+                            (substitute* "meson.build"
+                              (("udev.get_pkgconfig_variable..udevdir..")
+                               (string-append "'"
+                                              #$output "/lib/udev'")))
+                            (substitute* "scripts/meson-install.sh"
+                              (("mkdir.*")
+                               ""))))
+                        (add-before 'install 'no-polkit-magic
+                          (lambda* (#:key outputs #:allow-other-keys)
+                            (setenv "PKEXEC_UID" "something"))))))
+    (native-inputs (list pkg-config
+                         `(,glib "bin") python asciidoc umockdev))
+    (inputs (list eudev dbus polkit))
+    (synopsis "Thunderbolt 3 device manager")
+    (description
+     "This package provides @command{boltd}, a userspace daemon
+for Thunderbolt devices, and @command{boltctl}, a command-line utility for
+managing those devices.
+
+The daemon @command{boltd} exposes devices via D-Bus to clients.  It also
+stores a database of previously authorized devices and will, depending on the
+policy set for the individual devices, automatically authorize newly connected
+devices without user interaction.
+
+The command-line utility @command{boltctl} manages Thunderbolt devices via
+@command{boltd}.  It can list devices, monitor changes, and initiate
+authorization of devices.")
+    (home-page "https://gitlab.freedesktop.org/bolt/bolt")
+    (license license:gpl2+)))
+
 (define-public jitterentropy-rngd
   (package
     (name "jitterentropy-rngd")