Suggested by Mark H Weaver.

* gnu/packages/gnome.scm (network-manager)[inputs]: Add NEWT.

Reported by Mark H Weaver.

* gnu/packages/guile.scm (guile-git)[arguments]: Add 'skip-tests' phase
unless on x86_64-linux.

* gnu/packages/version-control.scm (libgit2)[outputs]: New field.

* gnu/packages/version-control.scm (libgit2): Update to 0.26.0.  Remove
"libgit2-use-after-free.patch".
* gnu/packages/patches/libgit2-use-after-free.patch: Remove.
* gnu/local.mk (dist_patch_DATA): Remove it.

* gnu/packages/enlightenment.scm (efl)[inputs]: Add wayland-protocols.
Move mesa ...
[propagated-inputs]: ... to here. Add libinput, libxkbcommon, wayland.
[arguments]: Add flags to enable wayland, elput and drm.

* gnu/packages/gstreamer.scm (gst-plugins-good)[arguments]: Change the
list of tests to disable during 'disable-failing-tests phase.

* gnu/services/networking.scm (%ntp-servers): Use *.guix.pool.ntp.org.

* gnu/packages/autotools.scm (automake/latest): New variable.

* gnu/packages/package-management.scm (guix)[arguments]: Add (srfi
srfi-26) to #:modules.  Introduce 'gopath', distinct from 'path'.

* gnu/packages/package-management.scm (guix): Update to 228a3982.

* guix/git-download.scm (git-predicate): Remove call to
'canonicalize-path' since this could lead to discrepancies.  For
instance it broke 'make update-guix-package' since it passes a
non-canonical directory name.

* gnu/services/ssh.scm (extend-openssh-authorized-keys): New procedure.
(openssh-service-type)[compose, extend]: New fields.
* doc/guix.texi (Networking Services): Document the extension.

* gnu/services/ssh.scm (<openssh-configuration>)[authorized-keys]: New
field.
(authorized-key-directory): New procedure.
(openssh-config-file): Honor 'authorized-keys'.
(openssh-activation): Use 'with-imported-modules'.  Make /etc/ssh
755.  Create /etc/ssh/authorized_keys.d.
* doc/guix.texi (Networking Services): Document it.

Reported by Ricardo Wurmus.

* gnu/services/cuirass.scm (cuirass-shepherd-service): Pass
 #:environment-variables.

Suggested by Oleg Pykhalov <go.wigust@gmail.com>.

* doc/guix.texi (Invoking guix system): Give an example of passing
arguments to the 'run-vm.sh' script.

* gnu/packages/video.scm (ffmpeg): Update to 3.3.3.

Add libaio as an input, such that QEMU is built with support for Asynchronous
I/O (AIO).

* gnu/packages/virtualization.scm (qemu)[inputs]: Uncomment libaio.

* gnu/services/databases.scm (memcached-service-type, %memcached-accounts):
  New variables.
  (<memcached-configuration>): New record type.
  (memcached-service-type): New procedures.
* gnu/tests/databases.scm: New file.
* doc/guix.texi (Database Services): Document the new memcached service.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add entry for tests/databases.scm.

* gnu/packages/databases.scm (memcached): New variable.

* gnu/packages/games.scm (retroarch): Update to 1.6.3.

* gnu/packages/fpga.scm (yosys): Add z3 to propagated-inputs.

* gnu/packages/maths.scm (z3): New variable.

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

* gnu/packages/patches/erlang-man-path.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/erlang.scm (erlang)[source]: Use it.

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

* gnu/packages/games.scm (tome4)[source](snippet): Use a single
'substitute*' call instead of 'for-each'.

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

* gnu/packages/vim.scm (vim): Update to 8.0.0808.
[arguments]: Remove obsolete 'make-bit-reproducable' phase.
(vim-full): Update to 8.0.0808.
[arguments]: Remove 'drop-failing-tests' phase.

Check the environment profile so that we autoload packages that are given as
arguments to "guix environment" but are not in the system or user profile.
Note that the union of Emacs packages in the system, user, and environment
profiles will be autoloaded even when --pure was passed to "guix environment",
because it's not clear how to detect that --pure was given.

* gnu/packages/aux-files/emacs/guix-emacs.el (guix-emacs-autoload-packages):
Add Emacs packages from GUIX_ENVIRONMENT profile.

Signed-off-by: Alex Kost <alezost@gmail.com>

The seq.el library has been included with Emacs since version 25.1.

* gnu/packages/emacs.scm (emacs-seq): Remove variable.
(flycheck, emacs-cider)[propagated-inputs]: Remove emacs-seq.

Signed-off-by: Alex Kost <alezost@gmail.com>

The let-alist package has been included with Emacs since version 25.1.

* gnu/packages/emacs.scm (let-alist): Remove variable.
(flycheck, emacs-pdf-tools, emacs-sx)[propagated-inputs]: Remove let-alist.

Signed-off-by: Alex Kost <alezost@gmail.com>

Fixes <http://bugs.gnu.org/27686>.
Reported by Adonay Felipe Nogueira <adfeno@openmailbox.org>.

* gnu/packages/emacs.scm (emacs-ess)[arguments]: Add LISPDIR to
'make-flags' to install *.el files into "guix.d" sub-directory.

* gnu/packages/bootloaders.scm: Add (gnu packages mtools).
(grub-efi)[inputs]: Add mtools.
[arguments]: Add phase "use-absolute-mtools-path".

* gnu/packages/ocaml.scm (coq-interval): New variable.

* gnu/packages/ocaml.scm (coq-coquelicot): New variable.

* gnu/packages/ocaml.scm (coq-mathcomp): New variable.

* gnu/packages/ocaml.scm (coq-gappa): New variable.

* gnu/packages/ocaml.scm (coq-flocq): New variable.

* gnu/packages/gnupg.scm (gnupg): Update to 2.1.22.

* gnu/packages/bioinformatics.scm (metabat): Update to 2.11.2.

* gnu/packages/mes.scm (mes): Update to 0.9.
[arguments]: Delete `strip' phase.
[synopsis]: Rewrite to be more descriptive.
[description]: Include expanded acronym.

* gnu/packages/disk.scm (gptfdisk): Update to 1.0.3.

* gnu/services/admin.scm
  (<tailon-configuration>, <tailon-configuration-file>): New record types.
  (tailon-configuration-files-string, tailon-shepherd-service): New
  procedures.
  (%tailon-accounts, tailon-service-type: New variables.
* doc/guix.texi (Monitoring Services: Document the Tailon service.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add gnu/tests/admin.scm.
* gnu/tests/admin.scm: New file.