* gnu/packages/cran.scm (r-ggvis): Update to 0.4.5.

* gnu/packages/cran.scm (r-partitions): Update to 1.9-22.
[propagated-inputs]: Add r-sets.

* gnu/packages/cran.scm (r-compositions): Update to 1.40-3.
[propagated-inputs]: Remove r-energy.

* gnu/packages/cran.scm (r-spam): Update to 2.3-0.1.

* gnu/packages/cran.scm (r-biocmanager): Update to 1.30.9.

* gnu/packages/cran.scm (r-ncdf4): Update to 1.17.

* gnu/packages/cran.scm (r-performance): Update to 0.4.0.

* gnu/packages/cran.scm (r-bayestestr): Update to 0.4.0.

* gnu/packages/cran.scm (r-emmeans): Update to 1.4.2.

* gnu/packages/cran.scm (r-slam): Update to 0.1-46.

* gnu/packages/cran.scm (r-doby): Update to 4.6-3.
[propagated-inputs]: Add r-broom, r-deriv, r-pbkrtest, and r-tibble.

* gnu/packages/cran.scm (r-jomo): Update to 2.6-10.

* gnu/packages/cran.scm (r-ddalpha): Update to 1.3.10.

* gnu/packages/cran.scm (r-sets): New variable.

* gnu/packages/cran.scm (r-deriv): New variable.

* gnu/packages/security-token.scm (libu2f-server): New variable.

* gnu/packages/gettext.scm (po4a): Update to 0.57.

* gnu/packages/ssh.scm (libssh): Update to 0.9.1.

* gnu/packages/vpn.scm (wireguard): Update to 0.0.20191012.

Fixes <https://issues.guix.info/issue/37937>.

* gnu/packages/gnome.scm (lollypop)[arguments]: Rename ‘wrap’ phase to
‘wrap-python’ and add ‘wrap-glib-or-gtk’ phase.
[inputs]: Add gsettings-desktop-schemas.

* gnu/packages/mail.scm (opensmtpd-next): Update to 6.6.0p1.
[inputs]: Replace openssl with libressl.

* gnu/packages/tls.scm (libressl)[source]: Hard-code NAME.

Fixes CVE-2019-11757, CVE-2019-11759, CVE-2019-11760, CVE-2019-11761,
CVE-2019-11762, CVE-2019-11763, CVE-2019-11764, and CVE-2019-15903.

Note: IceCat 68 has not yet been released by the IceCat project.  This is a
      work-in-progress, and does not currently meet the privacy-respecting
      standards of the IceCat project.

* gnu/packages/patches/icecat-default-search-ddg.patch,
gnu/packages/patches/icecat-disable-sync.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/gnuzilla.scm (%icecat-version): Update.
(mozilla-compare-locales, all-mozilla-locales): New variables.
(mozilla-locale): New procedure.
(mozilla-locales): New macro.
(icecat-source): Add code to populate the l10n directory.  Remove the code
that copied the l10n directory from an older IceCat source tarball.
(icecat)[inputs]: Remove hunspell.
[native-inputs]: Comment out previous Guix-specific patches for now.  Use the
newest rust, cargo, llvm, and clang.  Add rust-cbindgen, node, nasm, python 3,
icecat-default-search-ddg.patch and icecat-disable-sync.patch.
[arguments]: In configure flags: remove "--disable-maintenance-service" and
"--enable-system-hunspell", and comment out flags to use system libraries
instead of bundled libraries for libevent, libogg, libvorbis, libvpx,
harfbuzz, graphite2, and sqlite.  Add srfi-34 and srfi-35 to modules.  Delete
fewer bundled libraries.  Adapt the 'patch-source-shebangs' phase.  Add a
custom 'build' phase that tries the standard 'build' phase up to 5 times.
In the 'wrap-program' phase, set MOZ_LEGACY_PROFILES=1 in the environment,
and add 'pulseaudio' to the front of LD_LIBRARY_PATH.
[description]: Add a warning that this is only a preview release.
* gnu/packages/patches/icecat-makeicecat.patch: Adapt.

* gnu/services/xorg.scm (<gdm-configuration>)[debug?]: New field.
(gdm-configuration-file): Use it.
* doc/guix.texi: Document it.

* gnu/packages/lisp.scm (sbcl): Update to 1.5.8.

* gnu/packages/haskell-apps.scm (git-annex): Update to 7.20191024.

* gnu/packages/man.scm (man-db): Update to 2.9.0.

* gnu/packages/emulators.scm (retroarch): Update to 1.7.9.2.

* gnu/packages/mail.scm (neomutt): Update to 20191025.
[inputs]: Use libidn2 instead of libidn.
[arguments]: Adjust #:configure-flags accordingly.
Enable tests.  Remove ‘fix-sasl-test’ phase.

* gnu/packages/mail.scm (neomutt)[source]: Use GIT-FETCH and
GIT-FILE-NAME.

Fixes <https://varnish-cache.org/security/VSV00004.html>.

* gnu/packages/web.scm (varnish): Update to 6.3.1.

* gnu/packages/perl.scm (perl-net-dns-native): Update to 0.21.

* gnu/packages/bittorrent.scm (qbittorrent): Update to 4.1.8.

* gnu/packages/web.scm (rss-bridge): Update to 2019-09-12.

* gnu/packages/messaging.scm (profanity): Correct indentation.

Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>

* gnu/packages/messaging.scm (profanity): Update to 0.7.1,
[uri]: update source URL to the one provided on the website.

Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>

* gnu/packages/linux.scm (ddcci-driver-linux): Add variable.

Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>

* gnu/packages/ruby.scm (ruby-wayback-machine-downloader): New variable.

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

* doc/guix-cookbook.texi: Use @lisp for Scheme snippets instead of
"@example scheme".  This allows for syntax highlighting of the HTML
output.

* guix/scripts/build.scm (set-build-options-from-command-line): Remove
obsolete TODO comment.