gnu: Add Pfff.

* gnu/packages/textutils.scm (pfff): New variable.

gnu: mpv: Remove 'samba' input.

This is a heavy-weight and uncommon feature.  See
<http://lists.gnu.org/archive/html/guix-devel/2015-12/msg00701.html>.

* gnu/packages/video.scm (mpv)[inputs]: Remove 'samba'.

emacs: Display supported systems in "Package Info".

* emacs/guix-main.scm (%package-param-alist): Add 'systems'.
* emacs/guix-ui-package.el (guix-package-info-insert-systems): New
  procedure.
  (guix-package-info-format): Add it.
  (guix-output-info-format): Likewise.
  (guix-package-info-titles): Add "Supported systems" title.

gnu: Add genomation.

* gnu/packages/bioinformatics.scm (r-genomation): New variable.

gnu: Add seqPattern.

* gnu/packages/bioinformatics.scm (r-seqpattern): New variable.

gnu: Add impute.

* gnu/packages/bioinformatics.scm (r-impute): New variable.

gnu: Add BSgenome.

* gnu/packages/bioinformatics.scm (r-bsgenome): New variable.

gnu: Add plotly.

* gnu/packages/statistics.scm (r-plotly): New variable.

gnu: Add viridis.

* gnu/packages/statistics.scm (r-viridis): New variable.

gnu: Add topGO.

* gnu/packages/bioinformatics.scm (r-topgo): New variable.

gnu: Add matrixStats.

* gnu/packages/statistics.scm (r-matrixstats): New variable.

gnu: Add R.rsp.

* gnu/packages/statistics.scm (r-r-rsp): New variable.

gnu: Add R.cache.

* gnu/packages/statistics.scm (r-r-cache): New variable.

gnu: Add R.utils.

* gnu/packages/statistics.scm (r-r-utils): New variable.

gnu: Add R.oo.

* gnu/packages/statistics.scm (r-r-oo): New variable.

gnu: Add R.methodsS3.

* gnu/packages/statistics.scm (r-r-methodss3): New variable.

gnu: Add base64enc.

* gnu/packages/statistics.scm (r-base64enc): New variable.

gnu: Add DT.

* gnu/packages/statistics.scm (r-dt): New variable.

gnu: Add SparseM.

* gnu/packages/statistics.scm (r-sparsem): New variable.

gnu: Add GO.db.

* gnu/packages/bioinformatics.scm (r-go-db): New variable.

gnu: Add GenomicFeatures.

* gnu/packages/bioinformatics.scm (r-genomicfeatures): New variable.

gnu: Add rtracklayer.

* gnu/packages/bioinformatics.scm (r-rtracklayer): New variable.

gnu: Add GenomicAlignments.

* gnu/packages/bioinformatics.scm (r-genomicalignments): New variable.

gnu: Add SummarizedExperiment.

* gnu/packages/bioinformatics.scm (r-summarizedexperiment): New variable.

gnu: Add Rsamtools.

* gnu/packages/bioinformatics.scm (r-rsamtools): New variable.

gnu: Add Biostrings.

* gnu/packages/bioinformatics.scm (r-biostrings): New variable.

gnu: Add BiocParallel.

* gnu/packages/bioinformatics.scm (r-biocparallel): New variable.

gnu: Add biomaRt.

* gnu/packages/bioinformatics.scm (r-biomart): New variable.

gnu: Add AnnotationDbi.

* gnu/packages/bioinformatics.scm (r-annotationdbi): New variable.

gnu: Add Biobase.

* gnu/packages/bioinformatics.scm (r-biobase): New variable.

gnu: Add snow.

* gnu/packages/statistics.scm (r-snow): New variable.

gnu: Add futile.logger.

* gnu/packages/statistics.scm (r-futile-logger): New variable.

gnu: Add futile.options.

* gnu/packages/statistics.scm (r-futile-options): New variable.

gnu: Add lambda.r.

* gnu/packages/statistics.scm (r-lambda-r): New variable.

gnu: Add r-xml.

* gnu/packages/statistics.scm (r-xml): New variable.

gnu: Add RCurl.

* gnu/packages/statistics.scm (r-rcurl): New variable.

gnu: Add RSQLite.

* gnu/packages/statistics.scm (r-rsqlite): New variable.

import: Rename "cran-fetch" to "fetch-description".

* guix/import/cran.scm (cran-fetch): Rename procedure ...
(fetch-description): ... to this.

import: Add package->upstream-name procedure.

* guix/import/cran.scm (package->upstream-name): New procedure.

gnu: Add xmlstarlet.

* gnu/packages/xml.scm (xmlstarlet): New variable.

gnu: zita-convolver: Drop the '-march=native' optimization.

* gnu/packages/audio.scm (zita-convolver)[source]: Add snippet.

gnu: zita-resampler: Drop the '-march=native' optimization.

* gnu/packages/audio.scm (zita-resampler)[source]: Add snippet.

gnu: Add ruby-ansi.

* gnu/packages/ruby.scm (ruby-ansi): New variable.

gnu: edirect: Update to 3.50.

* gnu/packages/bioinformatics.scm (edirect): Update to 3.50.
[native-inputs]: Remove "unzip".

gnu: w3m: Enable SSL, disable broken protocols and ciphers.

Fixes <http://bugs.gnu.org/16791>.

* gnu/packages/patches/w3m-force-ssl_verify_server-on.patch: New file.
* gnu/packages/patches/w3m-disable-sslv2-and-sslv3.patch: New file.
* gnu/packages/patches/w3m-disable-weak-ciphers.patch: New file.
* gnu/packages/w3m.scm (w3m)[source]: Add patches.
* gnu-system.am (dist_patch_DATA): Add the new files.

gnu: w3m: Update patch to use '-p1'.

* gnu/packages/patches/w3m-fix-compile.patch: Rename this file...
* gnu/packages/patches/w3m-libgc.patch: ...to this, and adjust patch
prefix level to '-p1'.
* gnu-system.am (dist_patch_DATA): Update patch name.
* gnu/packages/w3m.scm (w3m)[source]: Update patch name.
[source]: Drop patch flag -p0.

build-system/gnu: Make 'package-with-explicit-inputs' idempotent.

* guix/build-system/gnu.scm (package-with-explicit-inputs): Use
  'ensure-keyword-arguments' instead of appending to ARGS.
* gnu/packages/commencement.scm (static-bash-for-glibc): Add missing
  #:guile argument.

utils: Add 'ensure-keyword-arguments'.

* guix/utils.scm (delkw, ensure-keyword-arguments): New procedures.
* tests/utils.scm ("ensure-keyword-arguments"): New test.

http-client: Work around <bugs.gnu.org/22273>.

* guix/http-client.scm (read-header-line): New procedure.  Use it.

gnu: guix: Update development snapshot to f888c0b.

* gnu/packages/package-management.scm (guix-devel): Update to f888c0b.

http-client: Fix erroneous comment.

* guix/http-client.scm: Fix Guile version number in comment for Guile
commit 5a10e41.

gnu: gmsh: Update to 2.11.0.

* gnu/packages/maths.scm (gmsh): Update to 2.11.0.
  [arguments]: Replace 'check phase.

lint: cve: Catch host name lookup errors.

* guix/scripts/lint.scm (package-vulnerabilities): Catch
'getaddrinfo-error'.

gnu: sudo: Use /var/run/sudo instead of /run/sudo.

* gnu/packages/admin.scm (sudo)[arguments]: Pass
--with-rundir=/var/run/sudo since /var/run is cleaned up at boot time on
GuixSD whereas /run is not.

services: cleanup-service: Catch 'system-error' instead of everything.

This makes sure that critical errors such as unbound-variable do not go
undetected.

* gnu/services.scm (cleanup-gexp): Introduce local 'fail-safe' macro and
use it.  Remove uses of 'false-if-exception'.

gnu: ldc: Fix license.

* gnu/packages/ldc.scm (ldc)[license]: Replace invalid use of
'license:x11-style' by LICENSE:BOOST1.0.

build: ruby: Remove cached gem after install.

The .gem file stored in GEM_HOME after install is both redundant and an
archive that stores timestamped files which makes builds
non-deterministic, so delete it after 'gem install'.

* guix/build/ruby-build-system.scm (install): Remove cached gem after
  install.

gnu: icedtea7: Rename to icedtea-7.

* gnu/packages/java.scm (icedtea7): Rename variable to...
(icedtea-7): ...this.
(icedtea): Refer to "icedtea-7".

gnu: icedtea6: Rename to icedtea-6.

* gnu/packages/java.scm (icedtea6): Rename variable to...
(icedtea-6): ...this.

gnu: icedtea6, icedtea7: Rename package to "icedtea".

* gnu/packages/java.scm (icedtea6): Change package name to "icedtea".
(icedtea7): Inherit package name.

gnu: Add and use default IcedTea.

* gnu/packages/java.scm (icedtea): New variable.
(swt)[native-inputs]: Replace "icedtea6" with "icedtea".
* gnu/packages/bioinformatics.scm (htsjdk)[native-inputs]: Likewise.
(ngs-java)[inputs]: Likewise.
* gnu/packages/kodi.scm (kodi)[native-inputs]: Replace "icedtea7" with
"icedtea".
* gnu/packages/ruby.scm (ruby-rjb)[native-inputs]: Replace "icedtea7"
with "icedtea".

gnu: icedtea6, icedtea7: Unpack to "openjdk.src".

* gnu/packages/java.scm (icedtea6)[arguments]: Unpack OpenJDK sources to
"openjdk.src".
(icedtea7)[arguments]: Inherit "--with-openjdk-src-dir" flag; refer to
"openjdk.src" in build phases; simplify "unpack" phase.
[native-inputs]: Rename "openjdk-drop" to "openjdk-src".

gnu: Add Jellyfish.

* gnu/packages/bioinformatics.scm (jellyfish): New variable.

build: Bump version number.

* configure.ac: Change version to 0.9.1.

doc: Remove double occurrence of words.

* doc/guix.texi: substitute 'the the' with 'the'.

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

build: pull: Compile .scm files in one process.

* guix/build/pull.scm (call-with-process, report-build-progress)
(p-for-each): Remove.
(build-guix): Load and compile files in one process.

gnu: calibre: Update to 2.48.0.

* gnu/packages/ebook.scm (calibre): Update to 2.48.0.

gnu: Add LDC.

* gnu/packages/ldc.scm: New file.
* gnu/packages/patches/ldc-disable-tests.patch: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add ldc.scm.
  (dist_patch_DATA): Add patch file.

gnu: Add emacs-undo-tree.

 * gnu/packages/emacs.scm (emacs-undo-tree): New variable.

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

gnu: emacs: Remove 'info.info'.

* gnu/packages/emacs.scm (emacs)[arguments]: Use 'modify-phases'.  Add
'remove-info.info' phase.

linux-boot: Remove verbose output for module loads.

* gnu/build/linux-boot.scm (boot-system): Leave
'current-module-debugging-port' unchanged.
* gnu/build/linux-modules.scm (load-linux-module*): Update comment about
'mmap'.

services: Move /tmp cleanup to a separate service.

* gnu/services.scm (compute-boot-script): Remove /tmp and /var/run
deletion code from here.
(cleanup-gexp): New procedure with /tmp and /var/run deletion code
formerly in 'compute-boot-script'.
(cleanup-service-type): New variable.
* gnu/system.scm (essential-services): Add an instance of
CLEANUP-SERVICE-TYPE.

services: boot: Reinstate /tmp and /var/run deletion.

For some time /tmp and /var/run were not being deleted because
'delete-file-recursively' was unbound.

* gnu/services.scm (compute-boot-script)[%modules, modules, compiled]:
New variables.  Use them to augment the module search path.

guix package: Allow multiple '--search' flags.

* guix/scripts/package.scm (find-packages-by-description): Change 'rx'
parameter to 'regexps'.
[matches-all?, matches-one?]: New procedures.
Use them.
(process-query): Collect regexps from all 'search' queries, and pass
them to 'find-packages-by-description'.
* tests/guix-package.sh: Add tests.
* doc/guix.texi (Invoking guix package): Document it.

ui: Update copyright year in '--version' output.

* guix/ui.scm (show-version-and-exit): Increment copyright year.

git-download: Correctly implement recursive checkouts.

Previously, the 'git checkout' invocation would remove sub-modules that
had been initialized by 'git clone --recursive'.

* guix/build/git.scm (git-fetch): Never use "git clone --recursive".
Invoke "git submodule update --init --recursive" after "git checkout".
Remove '.git' directories as the last step.

gnu: gtk+: Add patch to support GUIX_GTK3_PATH.

* gnu/packages/patches/gtk3-respect-GUIX_GTK3_PATH: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gtk.scm (gtk+) [source]: Add patch.
[native-search-paths]: Add search path for GUIX_GTK3_PATH.

gnu: gtk+-2: Add patch to support GUIX_GTK2_PATH.

* gnu/packages/patches/gtk2-respect-GUIX_GTK2_PATH: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/gtk.scm (gtk+-2) [source]: Add patch.
[native-search-paths]: Add search path for GUIX_GTK2_PATH.

gnu: julia: Update to 0.4.2.

* gnu/packages/patches/julia-0.3.10-fix-empty-array.patch: Remove file.
* gnu-system.am (dist_patch_DATA): Remove it.
* gnu/packages/julia.scm (julia): Update to 0.4.2.
[arguments]: Remove phase "fix-building-with-mcjit-llvm"; replace phase
"patch-include-path" with "fix-include-and-link-paths"; add phase
"hardcode-paths"; add missing make-flags.
[inputs]: Replace "pcre" with "pcre2"; replace "git" with "libgit2"; add
"coreutils"; add "libuv-julia"; add "wget"; add "which".
[native-inputs]: Remove "which".

gnu: Add libuv-julia.

* gnu/packages/julia.scm (libuv-julia): New variable.

gnu: utf8proc: Update to 1.3.1.

* gnu/packages/textutils.scm (utf8proc): Update to 1.3.1.
[arguments]: Remove custom "install" phase.

gnu: samba: Update to 4.3.3.

Fixes CVE-2015-{3223,5252,5299,5296,8467,5330}.

* gnu/packages/samba.scm (samba): Update to 4.3.3.

gnu: ldb: Update to 1.1.24.

Required for samba-4.3.3 in order to fix CVE-2015-5330 and
CVE-2015-3223.

* gnu/packages/samba.scm (ldb): Update to 1.2.24.

gnu: Add Asymptote.

* gnu/packages/bdw-gc.scm (libgc-for-c++): New variable.
* gnu/packages/plotutils.scm (asymptote): New variable.
* gnu/packages/patches/asymptote-gsl2.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.

graph: %BAG-WITH-ORIGINS-NODE-TYPE includes the origin's guile.

Before that it would include #f for most origins since that the default
value of 'origin-patch-guile'.

* guix/scripts/graph.scm (bag-node-edges): When 'origin-patch-guile'
returns #f, use (default-guile).
* tests/graph.scm ("bag DAG, including origins"): Check for an edge from
O to (default-guile).

graph: %BAG-EMERGED-NODE-TYPE filters out origins.

Fixes <http://bugs.gnu.org/22280>.
Reported by Leo Famulari <leo@famulari.name>.

* guix/scripts/graph.scm (%bag-emerged-node-type)[edges]: Mimic
%BAG-NODE-TYPE.  This is a followup to 38b92da.

Update NEWS.

* NEWS: Mention Emacs interface for Hydra and changes in variables.

emacs: Use "B" key in "Package List" to display latest builds.

* emacs/guix-ui-package.el (guix-package-list-latest-builds): New
  procedure.
  (guix-package-list-mode-map): Bind "B" key to it.
  (guix-output-list-mode-map): Likewise.
* doc/emacs.texi (Emacs List buffer): Document it.

emacs: Add Hydra interface.

* emacs/guix-utils.el (guix-hexify, guix-number->bool): New procedures.
  (guix-while-null): New macro.
* emacs/guix-hydra.el: New file.
* emacs/guix-hydra-build.el: New file.
* emacs/guix-hydra-jobset.el: New file.
* emacs.am (ELFILES): Add them.
* doc/emacs.texi (Emacs Hydra): New node.
  (Emacs Interface): Add it.
* doc/guix.texi (Top): Add it.
  (Substitutes): Mention Emacs interface.

emacs: Add 'guix-ui-read-profile'.

* emacs/guix-ui.el (guix-ui-read-profile): New procedure.
* emacs/guix-ui-package.el (guix-search-by-name)
  (guix-search-by-regexp, guix-installed-packages)
  (guix-obsolete-packages, guix-all-available-packages)
  (guix-newest-available-packages): Use it.
* emacs/guix-ui-generation.el (guix-generations)
  (guix-last-generations, guix-generations-by-time): Use it.

emacs: Add hierarchy of customization groups.

* emacs/guix-buffer.el (guix-define-groups, guix-define-entry-type)
  (guix-define-buffer-type): New macros.
  (guix-buffer-define-interface): Add parent groups for the generated
  custom groups.
* emacs/guix-info.el: Use 'guix-define-buffer-type' to generate custom
  groups.
* emacs/guix-list.el: Likewise.
* emacs/guix-ui.el: Use 'guix-define-groups' to generate custom groups.
  (guix-ui-define-entry-type): New macro.
* emacs/guix-ui-package.el: Use it.
* emacs/guix-ui-generation.el: Use it.

emacs: Return nil instead of "" in completing readers.

* emacs/guix-utils.el (guix-completing-read): New procedure.
  (guix-define-readers): Use it.

emacs: Add 'guix-list-get-display-entries'.

* emacs/guix-list.el (guix-list-get-display-entries): New procedure.
* emacs/guix-ui-generation.el (guix-generation-get-display): Use it.

emacs: Add 'list-single' variables.

* emacs/guix-list.el (guix-list-single-entry?): New procedure.
  (guix-list-define-interface): Add ':list-single?' key and generate
  'guix-ENTRY-TYPE-list-single' variables.
* emacs/guix-ui-package.el (guix-package-list-single): Remove.

emacs: Reorganize package/generation UI code.

Move the code for packages/generations interface from "guix-info.el",
"guix-list.el", "guix-base.el" and "guix.el" to "guix-ui-package.el" and
"guix-ui-generation.el".

* emacs/guix-base.el (guix-package-entry->name-specification)
  (guix-package-entries->name-specifications)
  (guix-package-id-and-output-by-output-id)
  (guix-package-installed-outputs, guix-process-package-actions)
  (guix-package-list-type, guix-package-info-type)
  (guix-continue-package-operation-p, guix-get-package-strings)
  (guix-insert-package-strings): Move to "guix-ui-package.el".
  (guix-generation-packages-buffer-name-function, guix-output-name-width)
  (guix-generation-packages-update-buffer, guix-generation-packages)
  (guix-generation-packages-buffer-name-default)
  (guix-generation-packages-buffer-name-long)
  (guix-generation-packages-buffer-name, guix-generation-packages-buffer)
  (guix-generation-insert-packages, guix-generation-insert-package)
  (guix-profile-generation-manifest-file, guix-delete-generations)
  (guix-profile-generation-packages-buffer, guix-switch-to-generation):
  Move to "guix-ui-generation.el".
* emacs/guix-info.el (guix-package-location, guix-package-name)
  (guix-package-source, guix-package-info-source)
  (guix-package-info-heading, guix-package-info-license)
  (guix-package-info-name, guix-package-info-name-button)
  (guix-package-info-version, guix-package-info-location)
  (guix-package-info-synopsis, guix-package-info-description)
  (guix-package-info-obsolete, guix-package-info-installed-outputs)
  (guix-package-info-uninstalled-outputs)
  (guix-package-info-insert-heading)
  (guix-package-info-define-insert-inputs)
  (guix-package-info-obsolete-string)
  (guix-package-info-insert-obsolete-text)
  (guix-package-info-insert-non-unique-text)
  (guix-package-info-insert-outputs, guix-package-info-insert-output)
  (guix-package-info-insert-action-button)
  (guix-package-info-auto-find-source)
  (guix-package-info-auto-download-source)
  (guix-package-info-download-buffer, guix-package-info-show-source)
  (guix-package-info-download-source, guix-package-info-insert-source)
  (guix-package-info-redisplay-after-download)
  (guix-output-info-insert-version, guix-output-info-insert-output):
  Move to "guix-ui-package.el".
  (guix-generation-info-number, guix-generation-info-current)
  (guix-generation-not-current, guix-generation-info-insert-number)
  (guix-generation-info-insert-current): Move to "guix-ui-generation.el".
* emacs/guix-list.el (guix-package-list-generation-marking-enabled)
  (guix-package-list-installed, guix-package-list-obsolete)
  (guix-package-list-get-name, guix-package-list-get-installed-outputs)
  (guix-package-list-marking-check, guix-package-list-mark-outputs)
  (guix-package-list-mark-install, guix-package-list-mark-delete)
  (guix-package-list-mark-upgrade, guix-package-list-mark-upgrades)
  (guix-list-mark-package-upgrades, guix-list-execute-package-actions)
  (guix-package-list-execute, guix-package-list-make-action)
  (guix-package-list-edit, guix-output-list-mark-install)
  (guix-output-list-mark-delete, guix-output-list-mark-upgrade)
  (guix-output-list-mark-upgrades, guix-output-list-make-action)
  (guix-output-list-describe, guix-output-list-edit): Move to
  "guix-ui-package.el".
  (guix-generation-list-get-current, guix-generation-list-switch)
  (guix-generation-list-generations-to-compare)
  (guix-generation-list-compare, guix-generation-list-show-packages)
  (guix-generation-list-show-added-packages)
  (guix-generation-list-show-removed-packages)
  (guix-generation-list-diff, guix-generation-list-diff-manifests)
  (guix-generation-list-ediff, guix-generation-list-ediff-manifests)
  (guix-generation-list-diff-packages)
  (guix-generation-list-ediff-packages)
  (guix-generation-list-mark-delete, guix-generation-list-execute): Move
  to "guix-ui-generation.el".
* emacs/guix.el: Remove.
  (guix, guix-faces, guix-edit): Move to "guix-base.el".
  (guix-list-single-package, guix-search-params, guix-search-history)
  (guix-get-show-packages, guix-search-by-name, guix-search-by-regexp)
  (guix-installed-packages, guix-obsolete-packages)
  (guix-all-available-packages, guix-newest-available-packages): Move
  to "guix-ui-package.el".
  (guix-get-show-generations, guix-generations, guix-last-generations)
  (guix-generations-by-time): Move to "guix-ui-generation.el".
* emacs.am (ELFILES): Remove "guix.el".  Add "guix-ui-package.el" and
  "guix-ui-generation.el".
* doc/emacs.texi (Emacs Appearance): Adjust accordingly.

emacs: Reorganize 'readers' code.

* emacs/guix-base.el (guix-graph-type-names, guix-refresh-updater-names)
  (guix-lint-checker-names, guix-package-names): Move to...
* emacs/guix-read.el: ... here.
  (guix-read-file-name, guix-define-reader, guix-define-readers): Move to...
* emacs/guix-utils.el: ... here.

emacs: Generalize buffer interface.

Extract the code for defining buffer interface from "guix-base.el",
generalize it and move to "guix-buffer.el".

* emacs.am (ELFILES): Add "emacs/guix-buffer.el".
* emacs/guix-base.el (guix-profile, guix-entries, guix-buffer-type)
  (guix-entry-type, guix-search-type, guix-search-vals, guix-set-vars)
  (guix-get-symbol, guix-show-entries, guix-get-show-entries)
  (guix-set-buffer, guix-history-call, guix-make-history-item)
  (guix-get-params-for-receiving): Remove.
  (guix-switch-to-buffer): Rename to 'guix-buffer-display' and move to
  "guix-buffer.el".
  (guix-get-entries): Rename to 'guix-ui-get-entries' and move to
  "guix-ui.el".
  (guix-buffer-data, guix-buffer-value, guix-buffer-param-title)
  (guix-buffer-name, guix-buffer-history-size)
  (guix-buffer-revert-confirm?, guix-buffer-map, guix-buffer-revert)
  (guix-buffer-after-redisplay-hook, guix-buffer-redisplay)
  (guix-buffer-redisplay-goto-button): Move to...
* emacs/guix-buffer.el: ... here.  New file.
  (guix-buffer-item): New variable.
  (guix-buffer-with-item, guix-buffer-with-current-item)
  (guix-buffer-define-current-item-accessor)
  (guix-buffer-define-current-item-accessors)
  (guix-buffer-define-current-args-accessor)
  (guix-buffer-define-current-args-accessors): New macros.
  (guix-buffer-get-entries, guix-buffer-mode-enable)
  (guix-buffer-mode-initialize, guix-buffer-insert-entries)
  (guix-buffer-show-entries-default, guix-buffer-show-entries)
  (guix-buffer-message, guix-buffer-history-item, guix-buffer-set)
  (guix-buffer-display-entries-current)
  (guix-buffer-get-display-entries-current)
  (guix-buffer-display-entries, guix-buffer-get-display-entries): New
  procedures.
* emacs/guix-info.el: Adjust for the procedures renaming.
  (guix-info-define-interface): Add ':show-entries-function' keyword.
* emacs/guix-list.el: Likewise.
* emacs/guix-ui.el (guix-ui-define-interface): Generate
  'guix-ENTRY-TYPE-BUFFER-TYPE-get-entries' procedure based on
  'guix-ui-get-entries'.
* emacs/guix.el (guix-get-show-packages, guix-get-show-generations):
  Adjust for the procedures renaming.

emacs: info: Get rid of syntactic fontification.

* emacs/guix-info.el (guix-info-mode-initialize): New procedure.  Set
  'font-lock-defaults' to avoid syntactic fontification.
  (guix-info-define-interface): Use it.

emacs: Generalize buffer naming.

* emacs/guix-base.el (guix-buffer-name): New procedure.
  (guix-buffer-define-interface): Make ':buffer-name' a required keyword.
  (guix-update-after-operation, guix-buffer-name-function)
  (guix-buffer-name-simple, guix-buffer-name-default, guix-buffer-name)
  (guix-buffer-p, guix-buffers, guix-update-buffer)
  (guix-update-buffers-maybe-after-operation): Adjust, move and rename to...
* emacs/guix-ui.el (guix-ui-update-after-operation)
  (guix-ui-buffer-name-function, guix-ui-buffer-name-simple)
  (guix-ui-buffer-name-default, guix-ui-buffer-name)
  (guix-ui-buffer?, guix-ui-buffers, guix-ui-update-buffer)
  (guix-ui-update-buffers-after-operation): ... this.
  (guix-ui-define-interface): Generate
  'guix-ENTRY-TYPE-BUFFER-TYPE-buffer-name' procedure and pass it as
  ':buffer-name' argument.
  (guix-ui): New custom group.
* emacs/guix-info.el: Specify ':buffer-name' for the defined interfaces.
* emacs/guix-list.el: Likewise.
* doc/emacs.texi (Emacs Appearance): Adjust accordingly.

emacs: info: Buttonize package name heading.

* emacs/guix-info.el (guix-package-info-insert-heading): Insert
  buttonized name specification.