gnu: inetutils: Allow for cross-compilation.

* gnu/packages/admin.scm (inetutils)[arguments]: Pass
"--with-path-procnet-dev".

gnu: linux-pam: Disable NIS when cross-compiling.

* gnu/packages/linux.scm (linux-pam)[arguments]: Pass "--disable-nis"
when cross-compiling.

gnu: mpg123: Update to 1.25.2 [fixes CVE-2017-10683].

* gnu/packages/mp3.scm (mpg123): Update to 1.25.2.

gnu: Add lollypop.

* gnu/packages/gnome.scm (lollypop): New variable.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

services: elogind: Start from the Shepherd.

Fixes <http://bugs.gnu.org/27580>.
Reported by William <w@vieta.uk>.

* gnu/services/desktop.scm (elogind-shepherd-service): New procedure.
(elogind-service-type): Extend SHEPHERD-ROOT-SERVICE-TYPE.

gnu: hop: Update to 3.1.0-pre2.

* gnu/packages/scheme.scm (hop): Update to 3.1.0-pre2.
[source]: Remove unnecessary patch.
[arguments]: Enable tests; disable parallel building; specify BIGLOO in
make-flags.
[inputs]: Add libgc, libunistring, libuv, pcre and sqlite.
* gnu/local.mk (dist_patch_DATA): Remove unnecessary patch.
* gnu/packages/patches/hop-linker-flags.patch: Delete file.

gnu: bigloo: Update to 4.3a.

* gnu/packages/scheme.scm (bigloo): Update to 4.3a.
[source]: Remove old patch. Add snippet.
[arguments]: Adjust the build phases accordingly.
[inputs]: Add libgc, libunistring, libuv, openssl, pcre and sqlite.

gnu: libpipeline: Update to 1.4.2.

* gnu/packages/man.scm (libpipeline): Update to 1.4.2.

services: dbus, polkit: Add default value.

* gnu/services/dbus.scm (dbus-root-service-type)[default-value]: New
field.
(polkit-service-type)[default-value]: New field.

services: Make error message less scary.

* gnu/services.scm (service-back-edges): Show the type name of SERVICE
instead of SERVICE in error message.

gnu: offlineimap: Update to 7.1.2.

* gnu/packages/mail.scm (offlineimap): Update to 7.1.2.

gnu: sshuttle: Move python-pytest-runner.

* gnu/packages/vpn.scm (sshuttle)[native-inputs]: Mark
python-pytest-runner as a test-only dependency, following up commit
447f75825fbe473f0684d4664dde01d9d3a02d75.

gnu: libtiff: Fix two integer overflows.

* gnu/packages/patches/libtiff-tiffycbcrtorgb-integer-overflow.patch,
gnu/packages/patches/libtiff-tiffycbcrtorgbinit-integer-overflow.patch:
New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libtiff-4.0.8)[source]: Use them.

gnu: ncurses: Fix CVE-2017-10684 and CVE-2017-10685.

* gnu/packages/patches/ncurses-CVE-2017-10684-10685.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/ncurses.scm (ncurses)[replacement]: New field.
(ncurses/fixed): New variable.

gnu: poppler: Fix null pointer dereferences.

* gnu/packages/patches/poppler-fix-crash-with-broken-documents.patch: New
file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/pdf.scm (poppler/fixed)[source]: Add the patch.

gnu: emacs-exwm-x: Update to 1.7.2.

* gnu/packages/emacs.scm (emacs-exwm-x): Update to 1.7.2.
[propagated-inputs]: Add emacs-use-package.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: unshield: Remove incorrect '"'.

* gnu/packages/compression.scm (unshield): Remove incorrect '"'.

build, vm: Use "GuixSD" or "GUIXSD" as volume label.

* gnu/build/vm.scm (initialize-hard-disk): Use "GuixSD" as label.
* gnu/system/install.scm (installation-os): Use "GuixSD" as label.
* gnu/system/vm.scm (system-disk-image): Use "GuixSD" or "GUIXSD" as volume
label.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add et.

* gnu/packages/ssh.scm (et): New variable.

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

gnu: emacs: Build with imagemagick support.

* gnu/packages/emacs.scm (emacs)[inputs]: Add imagemagick.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>