* guix/channels.scm (openpgp-fingerprint->bytevector): New procedure.
(openpgp-fingerprint): New macro.
(%guix-channel-introduction): Use it.

* gnu/packages/crates-io.scm (rust-crossbeam-queue-0.2)[arguments]: Add
rust-maybe-uninit-2.0 to cargo-inputs. Don't skip build.

* gnu/packages/linux.scm (linux-libre-5.4-version): Update to 5.4.50.
(linux-libre-5.4-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-5.7-version): Update to 5.7.7.
(linux-libre-5.7-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.19-version): Update to 4.19.131.
(linux-libre-4.19-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.14-version): Update to 4.14.187.
(linux-libre-4.14-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.9-version): Update to 4.9.229.
(linux-libre-4.9-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.4-version): Update to 4.4.229.
(linux-libre-4.4-pristine-source): Update hash.

Includes fixes for CVE-2020-12417, CVE-2020-12418, CVE-2020-12419,
CVE-2020-12420, and CVE-2020-12421.

* gnu/packages/gnuzilla.scm (%icecat-version, %icecat-build-id): Update.
(icecat-source): Update gnuzilla commit, base version, and hashes.  Remove
code that deleted the Onion Browser Button extension, which is no longer
bundled upstream.
* gnu/packages/patches/icecat-makeicecat.patch: Adapt to new version.

* gnu/packages/gps.scm (gama): Update to 2.09.

* gnu/packages/networking.scm (squid): Update to 4.12.

* gnu/packages/networking.scm (libndp)[source]: Hard-code NAME.  Use HTTPS.
[home-page]: Use HTTPS.

* gnu/packages/networking.scm (haproxy): Update to 2.1.7.

* gnu/packages/admin.scm (solaar)[arguments]: Remove unnecessary custom ‘build’ phase.
Set PYTHONPATH earlier, before building.

Reported by Robin Templeton (terpri on #guix).

* gnu/packages/music.scm (qtractor): Update to 0.9.15.

* gnu/packages/ncdu.scm (ncdu)[synopsis]: Fix typo.
[description]: Start with a proper sentence.  Double-space.

* gnu/packages/ncdu.scm (ncdu): Update to 1.15.1.

* gnu/packages/music.scm (padthv1): Update to 0.9.15.

* gnu/packages/music.scm (samplv1): Update to 0.9.15.

* gnu/packages/music.scm (drumkv1): Update to 0.9.15.

* gnu/packages/music.scm (synthv1): Update to 0.9.15.

* gnu/packages/mpd.scm (mpd): Update to 0.21.24.

* gnu/packages/messaging.scm (ngircd): Update to 26.
[native-inputs]: Add openssl.

* gnu/packages/messaging.scm (nheko): Update to 0.7.2.

* gnu/packages/messaging.scm (mtxclient): Update to 0.3.1.

* guix/build/lisp-utils.scm (make-asd-file): Fix value of 'component?'
  parameter when using ECL.

* gnu/packages/vim.scm (vim-full)[arguments]: Remove custom
'skip-previewpopup phase.

* gnu/packages/vim.scm (vim): Update to 8.2.1101. [arguments]: In
'patch-config-files patch more shell calls. Rename custom 'set-TZDIR
phase to 'set-environment-variables phase and also set TERM. Adjust
'skip-failing-tests to skip more tests.

* gnu/packages/maths.scm (metamath): New variable.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

* .guix-authorizations: Remove key of David Craven, who left the project
in 2017, and Federico Beffa, whose last commit was in Feb. 2017.

* .guix-authorizations: Remove old keys of dvc, efraim, and janneke.

* .guix-authorizations: Remove key "DFC0 C7F7 9EE6 0CA7 AE55  5E19 6722
43C4 A03F 0EEE" (Brett Gilio).  See
<https://lists.gnu.org/archive/html/guix-devel/2020-06/msg00323.html>.

* gnu/packages/emulators (ppsspp)[source]: Update unbundling snippet.
[inputs]: Add cityhash, libzip, vulkan-headers, vulkan-loader, xxhash.
[arguments]<#:configure-flags>: Add -DUSE_SYSTEM_LIBZIP=ON.
Update comments accordingly.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

* gnu/packages/vulkan.scm (spirv-cross)[description]: Simplify.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

* gnu/packages/lisp-xyz.scm (sbcl-alexandria): Update to 1.1.

* gnu/packages/lisp-xyz.scm (sbcl-bordeaux-threads): Update to 0.8.8.

* gnu/packages/lisp-xyz.scm (sbcl-cl-random-forest): Update to 0.1-1.fedb36c.

Move the 3 lisp libraries that are not in lisp-xyz.scm with the others.

* gnu/packages/machine-learning.scm (sbcl-cl-libsvm-format, cl-libsvm-format,
  ecl-cl-libsvm-format, sbcl-cl-online-learning, cl-online-learning,
  ecl-cl-online-learning, sbcl-cl-random-forest, cl-random-forest,
  ecl-cl-random-forest): Move to ...
* gnu/packages/lisp-xyz.scm (sbcl-cl-libsvm-format, cl-libsvm-format,
  ecl-cl-libsvm-format, sbcl-cl-online-learning, cl-online-learning,
  ecl-cl-online-learning, sbcl-cl-random-forest, cl-random-forest,
  ecl-cl-random-forest): ... here.

* gnu/packages/lisp-xyz.scm (sbcl-ironclad): Update to 0.50.
  [inputs]: Remove trivial-garbage.

* gnu/packages/lisp.scm (sbcl): Update to 2.0.6.