gnu: linux-libre: Update to 4.10.  Keep 4.9 as longterm release.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.10.
(%linux-libre-hash): Update hash.
(linux-libre-4.9): New variable.
* gnu/packages/linux-libre-4.10-x86_64.conf,
gnu/packages/linux-libre-4.10-i686.conf: New files.
* Makefile.am (KCONFIGS): Add them.

gnu: Add dub-build-system.

* guix/build-system/dub.scm: New file.
* guix/build/dub-build-system.scm: New file.
* Makefile.am (MODULES): Add them.
* doc/guix.texi: Add section for dub-build-system.

import: Add stackage importer and updater.

* guix/import/stackage.scm: New file.
* guix/scripts/import/stackage.scm: New file.
* Makefile.am (MODULES): Add new files.
* guix/scripts/import.scm (importers): Add "stackage".
* guix/scripts/refresh.scm (%updaters): Add %stackage-updater.
* doc/guix.texi (Invoking 'guix import'): Document the importer.
  (Invoking 'guix refresh'): Add stackage to option --type valid values.
* guix/import/hackage.scm (guix-package->hackage-name, hackage-fetch,
  hackage-source-url, hackage-cabal-url, hackage-package?): Export them.

Add (guix memoization).

* guix/combinators.scm (memoize): Remove.
* guix/memoization.scm: New file.
* Makefile.am (MODULES): Add it.
* gnu/packages.scm, gnu/packages/bootstrap.scm,
guix/build-system/gnu.scm, guix/build-system/python.scm,
guix/derivations.scm, guix/gnu-maintenance.scm,
guix/import/cran.scm, guix/import/elpa.scm,
guix/modules.scm, guix/scripts/build.scm,
guix/scripts/graph.scm, guix/scripts/lint.scm,
guix/store.scm, guix/utils.scm: Adjust imports accordingly.

gnu: linux-libre: Update to 4.9.1.

* gnu/packages/linux.scm (%linux-libre-version, %linux-libre-hash)
(linux-libre): Update to 4.9.1.
* gnu/packages/linux-libre-4.8-x86_64.conf,
gnu/packages/linux-libre-4.8-i686.conf: Delete files.
* gnu/packages/linux-libre-4.9-x86_64.conf,
gnu/packages/linux-libre-4.9-i686.conf: New files.
* Makefile.am (KCONFIGS): Update accordingly.

guix: Add Docker image export.

* guix/docker.scm: New file.
* Makefile.am (MODULES): Register it.
* guix/scripts/archive.scm (show-help, %options, guix-archive): Add
support for "--format".
* doc/guix.texi (Invoking guix archive): Document it.

gnu: Add ocaml-build-system.

* guix/build/ocaml-build-system.scm: New file.
* guix/build-system/ocaml.scm: New file.
* Makefile.am (MODULES): Add them.
* gnu/packages/ocaml.scm (ocaml)[native-search-paths]: Adjuste OCAMLPATH.

Signed-off-by: David Craven <david@craven.ch>

Add 'guix copy'.

* guix/scripts/copy.scm: New file.
* guix/scripts/archive.scm (options->derivations+files): Export.
* doc/guix.texi (Invoking guix copy): New node.
* Makefile.am (MODULES) [HAVE_GUILE_SSH]: Add guix/scripts/copy.scm.
* po/guix/POTFILES.in: Likewise.

Add (guix ssh) module.

* guix/scripts/offload.scm (connect-to-remote-daemon)
(store-import-channel, store-export-channel, send-files)
(retrieve-files): Move to (guix ssh).
(nonce): Add optional 'name' parameter and use it.
(retrieve-files*): New procedure.
(transfer-and-offload): Use it instead of 'retrieve-files', and add
first parameter to 'send-files'.
(assert-node-can-import): Likewise.
(assert-node-can-export): Use 'retrieve-files' instead of
'store-export-channel'.
* guix/ssh.scm: New file.
* configure.ac: Use 'GUIX_CHECK_GUILE_SSH' and define 'HAVE_GUILE_SSH'
Automake conditional.
* Makefile.am (MODULES) [HAVE_GUILE_SSH]: Add guix/ssh.scm.

import: crate: Do not build when guile-json is not available.

* Makefile.am (MODULES): Add 'guix/import/crate.scm' and
'guix/scripts/import/crate.scm' only when HAVE_GUILE_JSON.

Remove Emacs interface.

* emacs/guix-about.el: Remove file.
* emacs/guix-backend.el: Likewise.
* emacs/guix-base.el: Likewise.
* emacs/guix-buffer.el: Likewise.
* emacs/guix-build-log.el: Likewise.
* emacs/guix-command.el: Likewise.
* emacs/guix-config.el.in: Likewise.
* emacs/guix-devel.el: Likewise.
* emacs/guix-entry.el: Likewise.
* emacs/guix-external.el: Likewise.
* emacs/guix-geiser.el: Likewise.
* emacs/guix-guile.el: Likewise.
* emacs/guix-help-vars.el: Likewise.
* emacs/guix-helper.scm.in: Likewise.
* emacs/guix-history.el: Likewise.
* emacs/guix-hydra-build.el: Likewise.
* emacs/guix-hydra-jobset.el: Likewise.
* emacs/guix-hydra.el: Likewise.
* emacs/guix-info.el: Likewise.
* emacs/guix-init.el: Likewise.
* emacs/guix-license.el: Likewise.
* emacs/guix-list.el: Likewise.
* emacs/guix-location.el: Likewise.
* emacs/guix-main.scm: Likewise.
* emacs/guix-messages.el: Likewise.
* emacs/guix-pcomplete.el: Likewise.
* emacs/guix-popup.el: Likewise.
* emacs/guix-prettify.el: Likewise.
* emacs/guix-profiles.el: Likewise.
* emacs/guix-read.el: Likewise.
* emacs/guix-ui-generation.el: Likewise.
* emacs/guix-ui-license.el: Likewise.
* emacs/guix-ui-location.el: Likewise.
* emacs/guix-ui-package.el: Likewise.
* emacs/guix-ui-system-generation.el: Likewise.
* emacs/guix-ui.el: Likewise.
* emacs/guix-utils.el: Likewise.
* emacs/local.mk: Likewise.
* doc/emacs.texi: Likewise.
* doc/guix.texi: Remove cross-references to Emacs nodes.
(Package Management): Mention 'emacs-guix' package.
* doc/contributing.texi (The Perfect Setup): Remove the reference.
* doc/htmlxref.cnf: Add 'emacs-guix' URL.
* Makefile.am: Remove Emacs stuff.
* configure.ac: Likewise.
* gnu/packages/package-management.scm (guix-0.12.0)[native-inputs]:
Remove "emacs".
[propagated-inputs]: Remove "geiser" and "emacs-magit-popup".

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

Revert "gnu: linux-libre: Update to 4.9."

This reverts commit 5a3849443ac8bdcffea0376b3c7efa30688c10bb.

Module loading is broken on i686 with some configurations, including our
default configuration.  See <https://bugs.gnu.org/25231>.

build: assert-no-store-file-names: Ignore ChangeLog.

* Makefile.am (assert-no-store-file-names): Ignore /gnu/store file names
in the ChangeLog, because they might be examples in commit messages.

graph: Add d3js backend.

* d3.v3.js, graph.js: New files.
* Makefile.am (EXTRA_DIST): List them.
* guix/graph.scm (%d3js-backend): New variable.
(emit-d3js-prologue, emit-d3js-epilogue, emit-d3js-node,
emit-d3js-edge): New procedures.
(%graph-backends): Add %d3js-backend.

import: Add importer for rust crates.

* guix/import/crate.scm: New file.
* guix/scripts/import/crate.scm: New file.
* guix/scripts/import.scm (importers): Add crate importer.
* tests/crate.scm: New file.
* doc/guix.texi: Add crate importer to table.
* Makefile.am (MODULES, SCM_TESTS): Add files.

build-system: Add cargo build system.

* guix/build-system/cargo.scm: New file.
* guix/build/cargo-build-system.scm: New file.
* Makefile.am (MODULES): Add files.

gnu: linux-libre: Update to 4.9.

* gnu/packages/linux.scm (%linux-libre-version, %linux-libre-hash)
(linux-libre): Update to 4.9.
* gnu/packages/linux-libre-4.8-x86_64.conf,
gnu/packages/linux-libre-4.8-i686.conf: Delete files.
* gnu/packages/linux-libre-4.9-x86_64.conf,
gnu/packages/linux-libre-4.9-i686.conf: New files.
* Makefile.am (KCONFIGS): Update accordingly.

Merge remote-tracking branch 'origin/master' into staging

gnu: make-bootstrap: Produce the correct %glibc-bootstrap-tarball for Hurd systems.

* gnu/packages/make-bootstrap.scm (%glibc-bootstrap-tarball): Make it a procedure.
  (%glibc-stripped): Make it a procedure and move the kernel specific part from
  here to ...
* guix/build/make-bootstrap.scm (make-stripped-libc): ... here. New file.
* Makefile.am (MODULES): Add it.

Merge branch 'master' into python-build-system