* gnu/packages/networking.scm (pidentd): New variable.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

* gnu/packages/games.scm (hyperrogue): Update to 10.0e.
[arguments]: Adjust accordingly.

* gnu/packages/bioinformatics.scm (metabat)[supported-systems]: New field.

* gnu/packages/emacs.scm (emacs-yasnippet-snippets): New variable.

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

* gnu/packages/emacs.scm (emacs-yasnippet): Upgrade to 0.12.0.
[source]: Remove an uninstalled directory from yas-snippet-dirs.

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

* gnu/packages/ssh.scm (guile-ssh): Update to 0.11.2.
[source]: Remove 'patches', 'modules', and 'snippet'.
* gnu/packages/patches/guile-ssh-channel-finalization.patch,
gnu/packages/patches/guile-ssh-double-free.patch,
gnu/packages/patches/guile-ssh-rexec-bug.patch: Remove.
* gnu/local.mk (dist_patch_DATA): Remove them.

* gnu/packages/guile.scm (artanis): Unbundled guile-json and version
according to documentation.

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

* guix/scripts/lint.scm (report-formatting-issues)[last-line]: Remove.
[sexp-last-line]: New procedure.
Use it.

* gnu/packages/python.scm (python-pbr-minimal): Update to 3.0.1
[source]: Update hash and remove patch.
* gnu/packages/patches/python-pbr-fix-man-page-support.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Remove it.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

* gnu/packages/version-control.scm (libgit2)[arguments]: Enable '-DUSE_SHA1DC'
in #:configure-flags.

* gnu/packages/ruby.scm (ruby-bio-commandeer): Update to 0.2.0.

* gnu/packages/gnunet.scm (libmicrohttpd): Update to 0.9.55.
[arguments]: Add 'add-missing-LDFLAGS' phase.

Fixes <https://bugs.gnu.org/27820>.
Reported by Hartmut Goebel <h.goebel@crazy-compilers.com>.

* guix/scripts/package.scm (%options) <"-u">: Emit a warning when ARG
starts with "-".

* gnu/packages/xorg.scm (xf86-video-intel): Update to 2100efa.
Introduce 'revision' variable.

* gnu/packages/guile.scm (guile-bytestructures)[arguments]: Install .go
files to OBJECT-DIR, defined as OUT/lib/guile/X.Y/site-ccache.

* gnu/packages/tor.scm (tor)[arguments]: Remove '--enable-expensive-hardening' option.

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

* gnu/packages/erlang.scm (erlang): Update to 20.0.

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

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>