* guix/scripts/pack.scm (%formats): Add "squashfs" format.
(guix-pack): Adjust "archiver" dependent on pack-format.
(squashfs-image): New procedure.
* doc/guix.texi (Invoking guix pack): Document it.

* guix/scripts/pack.scm (self-contained-tarball, docker-image): Accept
"archiver" argument; remove "tar" argument.
(guix-pack): Invoke "build-image" with "archiver" argument.

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

* gnu/packages/compression.scm (squashfs-tools-next): New variable.

* gnu/packages/messaging.scm (gajim): Update to 1.0.3.

* gnu/packages/messaging.scm (python-nbxmpp): Update to 0.6.6.

* gnu/packages/algebra.scm (xtensor): New variable.

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

* gnu/packages/cpp.scm (xtl): New variable.

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

* gnu/packages/cpp.scm (json-modern-cxx): New variable.

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

* gnu/packages/cpp.scm (fifo-map): New variable.
* gnu/packages/patches/fifo-map-fix-flags-for-gcc.patch: New file.
* gnu/packages/patches/fifo-map-remove-catch.hpp.patch: New file.
* gnu/local.mk: Add new patch files.

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

This commit also re-orders some module statements.

* gnu/packages/code.scm (amalgamate): New variable.

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

* gnu/packages/check.scm (catch-framework2): New variable.

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

* gnu/system/install.scm (installation-os): Remove uses of the 'title'
field of 'file-system'; use 'file-system-label' as appropriate.
* gnu/system/vm.scm (system-disk-image, system-qemu-image): Likewise.
* gnu/tests.scm (%simple-os): Likewise.
* gnu/tests/install.scm (%minimal-os, %minimal-extlinux-os)
(%minimal-os-on-vda, %separate-home-os, %separate-store-os)
(%raid-root-os, %encrypted-root-os, %btrfs-root-os): Likewise.
* gnu/build/shepherd.scm (default-mounts)[tmpfs]: Likewise.
* tests/guix-system.sh: Likewise.
* tests/system.scm (%root-fs): Likewise.
("operating-system-boot-mapped-devices, implicit dependency"): Likewise.

The 'title' field was easily overlooked and was an endless source of
confusion.  Now, the value of the 'device' field is self-contained.

* gnu/system/file-systems.scm (<file-system>): Change constructor name
to '%file-system'.
[title]: Remove.
(<file-system-label>): New record type with printer.
(report-deprecation, device-expression)
(process-file-system-declaration, file-system): New macros.
(file-system-title): New procedure.
(file-system->spec, spec->file-system): Adjust to handle
<file-system-label>.
* gnu/system.scm (bootable-kernel-arguments): Add case for
'file-system-label?'.
(read-boot-parameters): Likewise.
(mapped-device-user): Avoid 'file-system-title'.
(fs->boot-device): Remove.
(operating-system-boot-parameters): Use 'file-system-device' instead of
'fs->boot-device'.
(device->sexp): Add case for 'file-system-label?'.
* gnu/bootloader/grub.scm (grub-root-search): Add case for
'file-system-label?'.
* gnu/system/examples/bare-bones.tmpl,
gnu/system/examples/beaglebone-black.tmpl,
gnu/system/examples/lightweight-desktop.tmpl,
gnu/system/examples/vm-image.tmpl: Remove uses of 'title'.
* gnu/system/vm.scm (virtualized-operating-system): Remove uses of
'file-system-title'.
* guix/scripts/system.scm (check-file-system-availability): Likewise,
and adjust fix-it hint.
(check-initrd-modules)[file-system-/dev]: Likewise.
* gnu/build/file-systems.scm (canonicalize-device-spec): Remove 'title'
parameter.
[canonical-title]: Remove.
Match on SPEC's type rather than on CANONICAL-TITLE.
(mount-file-system): Adjust caller.
* gnu/build/linux-boot.scm (boot-system): Interpret ROOT here.
* gnu/services/base.scm (file-system->fstab-entry): Remove use of
'file-system-title'.
* doc/guix.texi (File Systems): Remove documentation of the 'title'
field.  Rewrite documentation of 'device' and document
'file-system-label'.

* gnu/packages/gnuzilla.scm (icecat)[source]: Add selected fixes from
the upstream mozilla-esr52 repository.

* gnu/package/music.scm (clementine): Update snapshot to 4619a4c1.

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

It appears the "EchoNest" service isn't available anymore which makes this
package obsolete.

* gnu/packages/music.scm (libechonest): Remove variable.
(clementine)[inputs]: Remove libechonest.

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

The update to Qt 5.11.0 broke libmygpo-qt. It turned it was using a deprecated
CMake function (qt5_use_moduldes).  Let's pick up two upstream patches that
fix the issue: https://github.com/gpodder/libmygpo-qt/pull/15



As mentioned in the the pull request, there is now a test failure but it looks
harmless.

* gnu/packages/patches/libmygpo-qt-fix-qt-5.11.patch,
gnu/packages/patches/libmygpo-qt-missing-qt5-modules.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/music.scm (libmygpo-qt)[source]: Add patches.
[arguments]: Build tests but do not run them.

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

* gnu/packages/java.scm (java-logback-classic): New variable.

* gnu/packages/java.scm (java-logback-core): New variable.

* gnu/packages/java.scm (java-janino): New variable.

* gnu/packages/java.scm (java-commons-compiler): New variable.

* gnu/packages/java.scm (java-commons-jxpath): New variable.

* gnu/packages/java.scm (java-eclipse-sisu-plexus): New variable.

* gnu/packages/java.scm (java-eclipse-sisu-inject): New variable.

* gnu/packages/java.scm (java-jsr250): New variable.

* gnu/packages/games.scm (xonotic-data)[license]: Refer to correct file.
* gnu/packages/games.scm (xonotic)[license]: Refer to correct file.

* gnu/packages/qt.scm (qtconnectivity)[arguments]: Remove custom
'disable-failing-tests phase.

* gnu/packages/qt.scm (qtbase, qtsvg, qtimageformats, qtx11extras,
qtxmlpatterns, qtdeclarative, qtconnectivity, qtwebsockets, qtsensors,
qtmultimedia, qtwayland, qtserialport, qtserialbus, qtwebchannel,
qtlocation, qttools, qtscript, qtquickcontrols, qtquickcontrols2,
qtgraphicaleffects, qtgamepad, qtscxml, qtpurchasing, qtcanvas3d,
qtcharts, qtdatavis3d, qtnetworkauth, qtremoteobjects, qtspeech):
Update to 5.11.0.
[source]: Update source uri.
(qtbase)[source]: Don't remove bundled sqlite.
[inputs]: Remove sqlite.
[arguments]: Use 'invoke'. Use bundled sqlite.
(qtsvg, qtmultimedia, qtcanvas3d)[arguments]: Use 'invoke'.
(qtremoteobjects)[arguments]: Skip new integration test.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.16.12.
(%linux-libre-hash): Update hash.

* gnu/packages/linux.scm (%linux-libre-4.14-version): Update to 4.14.44.
(%linux-libre-4.14-hash): Update hash.

* gnu/packages/linux.scm (linux-libre-4.9): Update to 4.9.103.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.133.

* gnu/packages/python.scm (pybind11): New variable.

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

* gnu/packages/image.scm (gifsicle): New variable.

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

* gnu/packages/compression.scm (upx): New variable.

* gnu/packages/compression.scm (ucl): New variable.

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

* gnu/packages/search.scm (xapers): [inputs]: remove python, poppler
[propagated-inputs]: add poppler, xclip, xdg-utils.
[arguments]: modify-phases to disable x-terminal options.

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

* gnu/packages/games.scm (xonotic, xonotic-data): New variables.

Signed-off-by: Rutger Helling <rhelling@mykolab.com>

* gnu/packages/video.scm (x265): Update to 2.8.