gnu: Move most packages from guile.scm to new module.

* gnu/packages/guile.scm (artanis, guildhall, guile-aspell, guile-bash,
guile-8sync, guile-daemon, guile-dsv, guile-fibers, guile-syntax-highlight,
guile-sjson, guile-colorized, guile-pfds, guile-aa-tree, guile-simple-zmq,
jupyter-guile-kernel, guile-sparql, guile-debbugs, guile-email,
guile-debbugs-next, guile-newt, guile-mastodon, guile-parted, guile-xosd,
guile-dbi, guile-dbd-sqlite3, guile-config, guile-hall, guile-ics, guile-wisp,
guile-sly, g-wrap, guile-miniadapton, guile-reader, guile2.2-reader,
guile-ncurses, guile-ncurses/gpm, guile-lib, guile2.0-lib, guile2.2-lib,
guile-minikanren, guile2.0-minikanren, guile2.2-minikanren, guile-irregex,
guile2.0-irregex, guile2.2-irregex, haunt, guile2.0-haunt, guile2.2-haunt,
guile-redis, guile2.0-redis, guile2.2-redis, guile-commonmark,
guile2.0-commonmark, guile2.2-commonmark, mcron, mcron2): Move these variables
from here...
* gnu/packages/guile-xyz.scm: ...to this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/installer.scm,
gnu/packages/bioinformatics.scm,
gnu/packages/ci.scm,
gnu/packages/gtk.scm,
gnu/packages/guile.scm,
gnu/packages/mail.scm,
gnu/packages/package-management.scm,
gnu/packages/skribilo.scm,
gnu/packages/web.scm,
gnu/services/mcron.scm: Update module references.

1 files changed, 1841 insertions, 0 deletions

diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
new file mode 100644
index 0000000000..93fa026778
--- /dev/null
+++ b/gnu/packages/guile-xyz.scm
@@ -0,0 +1,1841 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2015, 2017 Christopher Allan Webber <cwebber@dustycloud.org>
+;;; Copyright © 2016 Alex Sassmannshausen <alex@pompo.co>
+;;; Copyright © 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2016 Erik Edrosa <erik.edrosa@gmail.com>
+;;; Copyright © 2016 Eraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017 Alex Kost <alezost@gmail.com>
+;;; Copyright © 2016, 2017 Adonay "adfeno" Felipe Nogueira <https://libreplanet.org/wiki/User:Adfeno> <adfeno@openmailbox.org>
+;;; Copyright © 2016 Amirouche <amirouche@hypermove.net>
+;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2017 Andy Wingo <wingo@igalia.com>
+;;; Copyright © 2017 David Thompson <davet@gnu.org>
+;;; Copyright © 2017, 2018 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2017 Theodoros Foradis <theodoros@foradis.org>
+;;; Copyright © 2017 Nils Gillmann <ng0@n0.is>
+;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2018 Pierre-Antoine Rouby <pierre-antoine.rouby@inria.fr>
+;;; Copyright © 2018 Eric Bavier <bavier@member.fsf.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages guile-xyz)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages aspell)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages bash)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages disk)
+  #:use-module (gnu packages ed)
+  #:use-module (gnu packages gawk)
+  #:use-module (gnu packages gettext)
+  #:use-module (gnu packages gl)
+  #:use-module (gnu packages gperf)
+  #:use-module (gnu packages guile)
+  #:use-module (gnu packages hurd)
+  #:use-module (gnu packages image)
+  #:use-module (gnu packages libffi)
+  #:use-module (gnu packages libunistring)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages man)
+  #:use-module (gnu packages maths)
+  #:use-module (gnu packages multiprecision)
+  #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages networking)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages sdl)
+  #:use-module (gnu packages slang)
+  #:use-module (gnu packages sqlite)
+  #:use-module (gnu packages texinfo)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages version-control)
+  #:use-module (gnu packages xdisorg)
+  #:use-module (gnu packages xorg)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system guile)
+  #:use-module (guix utils)
+  #:use-module (ice-9 match)
+  #:use-module ((srfi srfi-1) #:select (alist-delete)))
+
+(define-public artanis
+  (let ((release "0.2.1")
+	(revision 3))
+    (package
+      (name "artanis")
+      (version (if (zero? revision)
+                   release
+                   (string-append release "-"
+                                  (number->string revision))))
+      (source (origin
+                (method url-fetch)
+                (uri (string-append "mirror://gnu/artanis/artanis-"
+                                    release ".tar.gz"))
+                (file-name (string-append name "-" version ".tar.gz"))
+                (sha256
+                 (base32
+                  "041ajcg2pz918kd9iqcj4inpzddc3impvz3r2nhlpbv8zrz011hn"))
+                (modules '((guix build utils)))
+                (snippet
+                 '(begin
+                    (delete-file-recursively "artanis/third-party/json.scm")
+                    (delete-file-recursively "artanis/third-party/json")
+                    (substitute* '("artanis/artanis.scm"
+                                   "artanis/oht.scm")
+                      (("(#:use-module \\()artanis third-party (json\\))" _
+                        use-module json)
+                       (string-append use-module json)))
+                    (substitute* "artanis/oht.scm"
+                      (("([[:punct:][:space:]]+)(->json-string)([[:punct:][:space:]]+)"
+                        _ pre json-string post)
+                       (string-append pre
+                                      "scm" json-string
+                                      post)))
+                    (substitute* "artanis/artanis.scm"
+                      (("[[:punct:][:space:]]+->json-string[[:punct:][:space:]]+")
+                       ""))
+                    #t))))
+      (build-system gnu-build-system)
+      ;; TODO: Add guile-dbi and guile-dbd optional dependencies.
+      (inputs `(("guile" ,guile-2.2)
+                ("guile-json" ,guile-json)))
+      (native-inputs `(("bash"       ,bash)         ;for the `source' builtin
+                       ("pkgconfig"  ,pkg-config)
+                       ("util-linux" ,util-linux))) ;for the `script' command
+      (arguments
+       '(#:make-flags
+         ;; TODO: The documentation must be built with the `docs' target.
+         (let* ((out (assoc-ref %outputs "out"))
+                (scm (string-append out "/share/guile/site/2.2"))
+                (go  (string-append out "/lib/guile/2.2/site-ccache")))
+           ;; Don't use (%site-dir) for site paths.
+           (list (string-append "MOD_PATH=" scm)
+                 (string-append "MOD_COMPILED_PATH=" go)))
+         #:test-target "test"
+         #:phases
+         (modify-phases %standard-phases
+           (add-before 'install 'substitute-root-dir
+             (lambda* (#:key outputs #:allow-other-keys)
+               (let ((out  (assoc-ref outputs "out")))
+                 (substitute* "Makefile"   ;ignore the execution of bash.bashrc
+                   ((" /etc/bash.bashrc") " /dev/null"))
+                 (substitute* "Makefile"   ;set the root of config files to OUT
+                   ((" /etc") (string-append " " out "/etc")))
+                 (mkdir-p (string-append out "/bin")) ;for the `art' executable
+                 #t)))
+           (add-after 'install 'wrap-art
+             (lambda* (#:key outputs #:allow-other-keys)
+               (let* ((out (assoc-ref outputs "out"))
+                      (bin (string-append out "/bin"))
+                      (scm (string-append out "/share/guile/site/2.2"))
+                      (go  (string-append out "/lib/guile/2.2/site-ccache")))
+                 (wrap-program (string-append bin "/art")
+                   `("GUILE_LOAD_PATH" ":" prefix (,scm))
+                   `("GUILE_LOAD_COMPILED_PATH" ":" prefix (,go)))
+                 #t))))))
+      (synopsis "Web application framework written in Guile")
+      (description "GNU Artanis is a web application framework written in Guile
+Scheme.  A web application framework (WAF) is a software framework that is
+designed to support the development of dynamic websites, web applications, web
+services and web resources.  The framework aims to alleviate the overhead
+associated with common activities performed in web development.  Artanis
+provides several tools for web development: database access, templating
+frameworks, session management, URL-remapping for RESTful, page caching, and
+more.")
+      (home-page "https://www.gnu.org/software/artanis/")
+      (license (list license:gpl3+ license:lgpl3+))))) ;dual license
+
+;; There has not been any release yet.
+(define-public guildhall
+  (let ((commit "2fe2cc539f4b811bbcd69e58738db03eb5a2b778")
+        (revision "1"))
+    (package
+      (name "guildhall")
+      (version (string-append "0-" revision "." (string-take commit 9)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/ijp/guildhall.git")
+                      (commit commit)))
+                (file-name (string-append name "-" version "-checkout"))
+                (sha256
+                 (base32
+                  "115bym7bg66h3gs399yb2vkzc2ygriaqsn4zbrg8f054mgy8wzn1"))))
+      (build-system gnu-build-system)
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           ;; Tests fail without this fix because they try to load the bash
+           ;; executable as a Scheme file.  See bug report at
+           ;; https://github.com/ijp/guildhall/issues/22
+           (add-after 'unpack 'fix-bug-22
+             (lambda _
+               (substitute* "Makefile.am"
+                 (("TESTS_ENVIRONMENT=.*")
+                  "AM_TESTS_ENVIRONMENT=srcdir=$(abs_top_srcdir)/tests/
+TEST_EXTENSIONS = .scm
+SCM_LOG_COMPILER= $(top_builddir)/env $(GUILE)
+AM_SCM_LOG_FLAGS =  --no-auto-compile -s")
+                 ;; FIXME: one of the database tests fails for unknown
+                 ;; reasons.  It does not fail when run outside of Guix.
+                 (("tests/database.scm") ""))
+               #t)))))
+      (inputs
+       `(("guile" ,guile-2.0)))
+      (native-inputs
+       `(("zip" ,zip) ; for tests
+         ("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("texinfo" ,texinfo)))
+      (synopsis "Package manager for Guile")
+      (description
+       "Guildhall is a package manager written for Guile Scheme.  A guild is
+an association of independent craftspeople.  A guildhall is where they meet.
+This Guildhall aims to make a virtual space for Guile wizards and journeyfolk
+to share code.
+
+On a practical level, Guildhall lets you share Scheme modules and programs
+over the internet, and install code that has been shared by others.  Guildhall
+can handle dependencies, so when a program requires several libraries, and
+each of those has further dependencies, all of the prerequisites for the
+program can be installed in one go.")
+      (home-page "https://github.com/ijp/guildhall")
+      (license license:gpl3+))))
+
+(define-public guile-aspell
+  (package
+    (name "guile-aspell")
+    (version "0.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://lonelycactus.com/tarball/guile_aspell-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "0vpk5xj9m9qc702z3khmkwhgpb949qbsyz8kw2qycda6qnxk0077"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-before 'configure 'set-guilesitedir
+                    (lambda _
+                      (substitute* "Makefile.in"
+                        (("^guilesitedir =.*$")
+                         "guilesitedir = \
+$(datadir)/guile/site/$(GUILE_EFFECTIVE_VERSION)\n"))
+                      #t))
+                  (add-before 'build 'set-libaspell-file-name
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (let ((aspell (assoc-ref inputs "aspell")))
+                        (substitute* "aspell.scm"
+                          (("\"libaspell\\.so\"")
+                           (string-append "\"" aspell
+                                          "/lib/libaspell\"")))
+                        #t))))))
+    (native-inputs `(("pkg-config" ,pkg-config)))
+    (inputs `(("guile" ,guile-2.2)
+              ("aspell" ,aspell)))
+    (home-page "https://github.com/spk121/guile-aspell")
+    (synopsis "Spell-checking from Guile")
+    (description
+     "guile-aspell is a Guile Scheme library for comparing a string against a
+dictionary and suggesting spelling corrections.")
+    (license license:gpl3+)))
+
+(define-public guile-bash
+  ;; This project is currently retired.  It was initially announced here:
+  ;; <https://lists.gnu.org/archive/html/guile-user/2015-02/msg00003.html>.
+  (let ((commit "1eabc563ca5692b3e08d84f1f0e6fd2283284469")
+        (revision "0"))
+    (package
+      (name "guile-bash")
+      (version (string-append "0.1.6-" revision "." (string-take commit 7)))
+      (home-page
+       "https://anonscm.debian.org/cgit/users/kaction-guest/retired/dev.guile-bash.git")
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (commit commit)
+                      (url home-page)))
+                (sha256
+                 (base32
+                  "097vny990wp2qpjij6a5a5gwc6fxzg5wk56inhy18iki5v6pif1p"))
+                (file-name (string-append name "-" version "-checkout"))))
+      (build-system gnu-build-system)
+      (arguments
+       '(#:configure-flags
+         ;; Add -I to match 'bash.pc' of Bash 4.4.
+         (list (string-append "CPPFLAGS=-I"
+                              (assoc-ref %build-inputs "bash:include")
+                              "/include/bash/include")
+
+               ;; The '.a' file is useless.
+               "--disable-static"
+
+               ;; Install 'lib/bash' as Bash 4.4 expects.
+               (string-append "--libdir=" (assoc-ref %outputs "out")
+                              "/lib/bash"))))
+      (native-inputs `(("pkg-config" ,pkg-config)
+                       ("autoconf" ,autoconf-wrapper)
+                       ("automake" ,automake)
+                       ("libtool" ,libtool)
+                       ;; Gettext brings 'AC_LIB_LINKFLAGS_FROM_LIBS'.
+                       ("gettext" ,gettext-minimal)
+
+                       ;; Bash with loadable module support, for the test
+                       ;; suite.
+                       ("bash-full" ,bash)))
+      (inputs `(("guile" ,guile-2.0)
+                ("bash:include" ,bash "include")))
+      (synopsis "Extend Bash using Guile")
+      (description
+       "Guile-Bash provides a shared library and set of Guile modules,
+allowing you to extend Bash in Scheme.  Scheme interfaces allow you to access
+the following aspects of Bash:
+
+@itemize
+@item aliases;
+@item setting and getting Bash variables;
+@item creating dynamic variables;
+@item creating Bash functions with a Scheme implementation;
+@item reader macro for output capturing;
+@item reader macro for evaluating raw Bash commands.
+@end itemize
+
+To enable it, run:
+
+@example
+enable -f ~/.guix-profile/lib/bash/libguile-bash.so scm
+@end example
+
+and then run @command{scm example.scm}.")
+      (license license:gpl3+))))
+
+(define-public guile-8sync
+  (package
+    (name "guile-8sync")
+    (version "0.4.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnu/8sync/8sync-" version
+                                  ".tar.gz"))
+              (sha256
+               (base32
+                "031wm13srak3wsnll7j2mbbi29g1pcm4swdb71ds9yn567pn20qw"))))
+    (build-system gnu-build-system)
+    (native-inputs `(("autoconf" ,autoconf)
+                     ("automake" ,automake)
+                     ("guile" ,guile-2.2)
+                     ("pkg-config" ,pkg-config)
+                     ("texinfo" ,texinfo)))
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-before 'configure 'setenv
+                    (lambda _
+                      ;; quiet warnings
+                      (setenv "GUILE_AUTO_COMPILE" "0")
+                      #t)))))
+    (home-page "https://gnu.org/s/8sync/")
+    (synopsis "Asynchronous actor model library for Guile")
+    (description
+     "GNU 8sync (pronounced \"eight-sync\") is an asynchronous programming
+library for GNU Guile based on the actor model.
+
+Note that 8sync is only available for Guile 2.2.")
+    (license license:lgpl3+)))
+
+(define-public guile-daemon
+  (package
+    (name "guile-daemon")
+    (version "0.1.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/alezost/" name
+                                  "/releases/download/v" version
+                                  "/" name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0hh6gq6b6phpxm0b1dkxyzj3f4sxdf7dji63609lzypa5v1ad2gv"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "https://github.com/alezost/guile-daemon")
+    (synopsis "Evaluate code in a running Guile process")
+    (description
+     "Guile-Daemon is a small Guile program that loads your initial
+configuration file, and then reads and evaluates Guile expressions that
+you send to a FIFO file.")
+    (license license:gpl3+)))
+
+(define-public guile-dsv
+  (package
+    (name "guile-dsv")
+    (version "0.2.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/artyom-poptsov/guile-dsv")
+                    (commit "bdc5267d007478abc20ea96d7c459b7dd9560b3d")))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "1irw6mz8998nwyhzrw9g94jcz60b9zljgqfmipaz1ybn8579qjx0"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)
+       ("texinfo" ,texinfo)))
+    (inputs `(("guile" ,guile-2.2)))
+    (propagated-inputs `(("guile-lib" ,guile-lib)))
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-before 'configure 'set-guilesitedir
+                    (lambda _
+                      (substitute* "Makefile.in"
+                        (("^guilesitedir =.*$")
+                         "guilesitedir = \
+$(datadir)/guile/site/$(GUILE_EFFECTIVE_VERSION)\n"))
+                      (substitute* "modules/Makefile.in"
+                        (("^guilesitedir =.*$")
+                         "guilesitedir = \
+$(datadir)/guile/site/$(GUILE_EFFECTIVE_VERSION)\n"))
+                      (substitute* "modules/dsv/Makefile.in"
+                        (("^guilesitedir =.*$")
+                         "guilesitedir = \
+$(datadir)/guile/site/$(GUILE_EFFECTIVE_VERSION)\n"))
+                      #t)))))
+    (home-page "https://github.com/artyom-poptsov/guile-dsv")
+    (synopsis "DSV module for Guile")
+    (description
+     "Guile-DSV is a GNU Guile module for working with the
+delimiter-separated values (DSV) data format.  Guile-DSV supports the
+Unix-style DSV format and RFC 4180 format.")
+    (license license:gpl3+)))
+
+(define-public guile-fibers
+  (package
+    (name "guile-fibers")
+    (version "1.0.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://wingolog.org/pub/fibers/fibers-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0vjkg72ghgdgphzbjz9ig8al8271rq8974viknb2r1rg4lz92ld0"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-after 'install 'mode-guile-objects
+                    (lambda* (#:key outputs #:allow-other-keys)
+                      ;; .go files are installed to "lib/guile/X.Y/cache".
+                      ;; This phase moves them to "…/site-ccache".
+                      (let* ((out (assoc-ref outputs "out"))
+                             (lib (string-append out "/lib/guile"))
+                             (old (car (find-files lib "^ccache$"
+                                                   #:directories? #t)))
+                             (new (string-append (dirname old)
+                                                 "/site-ccache")))
+                        (rename-file old new)
+                        #t))))))
+    (native-inputs
+     `(("texinfo" ,texinfo)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (synopsis "Lightweight concurrency facility for Guile")
+    (description
+     "Fibers is a Guile library that implements a a lightweight concurrency
+facility, inspired by systems like Concurrent ML, Go, and Erlang.  A fiber is
+like a \"goroutine\" from the Go language: a lightweight thread-like
+abstraction.  Systems built with Fibers can scale up to millions of concurrent
+fibers, tens of thousands of concurrent socket connections, and many parallel
+cores.  The Fibers library also provides Concurrent ML-like channels for
+communication between fibers.
+
+Note that Fibers makes use of some Guile 2.1/2.2-specific features and
+is not available for Guile 2.0.")
+    (home-page "https://github.com/wingo/fibers")
+    (license license:lgpl3+)))
+
+(define-public guile-syntax-highlight
+  (package
+    (name "guile-syntax-highlight")
+    (version "0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://files.dthompson.us/"
+                                  "guile-syntax-highlight/"
+                                  "guile-syntax-highlight-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1p771kq15x83483m23bhah1sz6vkalg3drm7x279f4j1cxligkzi"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (synopsis "General-purpose syntax highlighter for GNU Guile")
+    (description "Guile-syntax-highlight is a general-purpose syntax
+highlighting library for GNU Guile.  It can parse code written in various
+programming languages into a simple s-expression that can be converted to
+HTML (via SXML) or any other format for rendering.")
+    (home-page "http://dthompson.us/projects/guile-syntax-highlight.html")
+    (license license:lgpl3+)))
+
+(define-public guile-sjson
+  (package
+    (name "guile-sjson")
+    (version "0.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://dustycloud.org/misc/sjson-" version
+                                  ".tar.gz"))
+              (sha256
+               (base32
+                "1mzmapln79vv10qxaggz9qwcdbag3jnrj19xx8bgkmxss8h03sv3"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "https://gitlab.com/dustyweb/guile-sjson")
+    (synopsis "S-expression based json reader/writer for Guile")
+    (description "guile-sjson is a json reader/writer for Guile.
+It has a nice, simple s-expression based syntax.")
+    (license license:lgpl3+)))
+
+(define-public guile-colorized
+  (package
+    (name "guile-colorized")
+    (version "0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/NalaGinrut/guile-colorized/"
+                                  "archive/v" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "16xhc3an6aglnca8xl3mvgi8hsqzqn68vsl5ga4bz8bvbap5fn4p"))))
+    (build-system guile-build-system)
+    (native-inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "https://github.com/NalaGinrut/guile-colorized")
+    (synopsis "Colorized REPL for Guile")
+    (description
+     "Guile-colorized provides you with a colorized REPL for GNU Guile.")
+    (license license:gpl3+)))
+
+(define-public guile-pfds
+  (package
+    (name "guile-pfds")
+    (version "0.3")
+    (home-page "https://github.com/ijp/pfds")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url home-page)
+                    (commit (string-append "v" version))))
+              (sha256
+               (base32
+                "19y33wg94pf0n98dkfqd1zbw93fgky4sawxsxl6s3vyqwl0yi5vh"))
+              (file-name (string-append name "-" version "-checkout"))))
+    (build-system guile-build-system)
+    (arguments
+     '(#:source-directory "src"
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'move-files-around
+                    (lambda _
+                      ;; Move files under a pfds/ directory to reflect the
+                      ;; module hierarchy.
+                      (mkdir-p "src/pfds")
+                      (for-each (lambda (file)
+                                  (rename-file file
+                                               (string-append "src/pfds/"
+                                                              file)))
+                                '("bbtrees.sls"
+                                  "deques"
+                                  "deques.sls"
+                                  "dlists.sls"
+                                  "fingertrees.sls"
+                                  "hamts.sls"
+                                  "heaps.sls"
+                                  "private"
+                                  "psqs.sls"
+                                  "queues"
+                                  "queues.sls"
+                                  "sequences.sls"
+                                  "sets.sls"))
+
+                      ;; In Guile <= 2.2.4, there's no way to tell 'guild
+                      ;; compile' to accept the ".sls" extension.  So...
+                      (for-each (lambda (file)
+                                  (rename-file file
+                                               (string-append
+                                                (string-drop-right file 4)
+                                                ".scm")))
+                                (find-files "." "\\.sls$"))
+                      #t)))))
+    (native-inputs
+     `(("guile" ,guile-2.2)))
+    (synopsis "Purely functional data structures for Guile")
+    (description
+     "This package provides purely functional data structures written in R6RS
+Scheme and compiled for Guile.  It has been tested with Racket, Guile 2,
+Vicare Scheme and IronScheme.  Right now it contains:
+
+@itemize
+@item queues
+@item deques
+@item bbtrees
+@item sets
+@item dlists
+@item priority search queues (PSQs)
+@item finger trees
+@item sequences
+@item heaps
+@item hash array mapped tries (HAMTs).
+@end itemize\n")
+    (license license:bsd-3)))
+
+(define-public guile-aa-tree
+  (package
+    (name "guile-aa-tree")
+    (version "3.1.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://savannah/guile-aa-tree/guile-aa-tree-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0044c105r3q9vpl17pv3phl1b79kjm1llhkakqgiasixyav01blh"))))
+    (build-system guile-build-system)
+    (native-inputs `(("guile" ,guile-2.2)))
+    ;; https://savannah.nongnu.org/projects/guile-aa-tree
+    (home-page "https://qlfiles.net/guile-aa-tree/")
+    (synopsis "AA tree data structure for Guile")
+    (description
+     "This package provides an implementation of @dfn{AA trees}, a
+self-balancing binary tree data structure, for Guile.  It ensure @math{O(log
+n)} worst case performance for core operations.  The module provides
+non-mutating insert, delete, and search operations, with support for
+convenient nested tree operations.")
+    (license license:gpl3+)))
+
+(define-public guile-simple-zmq
+  (let ((commit "68bedb6679716214fb9d3472da57544526f7a618")
+        (revision "3"))
+    (package
+      (name "guile-simple-zmq")
+      (version (git-version "0.0.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/jerry40/guile-simple-zmq")
+               (commit commit)))
+         (sha256
+          (base32
+           "1ad3xg69qqviy1f6dnlw0ysmfdbmp1jq65rfqb8nfd8dsrq2syli"))
+         (file-name (git-file-name name version))))
+      (build-system guile-build-system)
+      (arguments
+       `(#:source-directory "src"
+         #:phases (modify-phases %standard-phases
+                    (add-after 'unpack 'set-libzmq-file-name
+                      (lambda* (#:key inputs #:allow-other-keys)
+                        (substitute* "src/simple-zmq.scm"
+                          (("\\(dynamic-link \"libzmq\"\\)")
+                           (format #f "(dynamic-link \"~a/lib/libzmq.so\")"
+                                   (assoc-ref inputs "zeromq"))))
+                        #t)))))
+      (native-inputs
+       `(("guile" ,guile-2.2)))
+      (inputs
+       `(("zeromq" ,zeromq)))
+      (home-page "https://github.com/jerry40/guile-simple-zmq")
+      (synopsis "Guile wrapper over ZeroMQ library")
+      (description
+       "This package provides a Guile programming interface to the ZeroMQ
+messaging library.")
+      (license license:gpl3+))))
+
+(define-public jupyter-guile-kernel
+  (let ((commit "a7db9245a886e104138474df46c3e88b95cff629")
+        (revision "1"))
+    (package
+      (name "jupyter-guile-kernel")
+      (version (git-version "0.0.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/jerry40/guile-kernel")
+               (commit commit)))
+         (sha256
+          (base32
+           "0aj04853bqm47ivfcmrgpb7w3wkis847kc7qrwsa5zcn9h38qh2f"))))
+      (build-system guile-build-system)
+      (arguments
+       '(#:phases (modify-phases %standard-phases
+                    (add-after 'unpack 'set-openssl-file-name
+                      (lambda* (#:key inputs #:allow-other-keys)
+                        ;; Record the absolute file name of the 'openssl'
+                        ;; command.
+                        (substitute* "src/hmac.scm"
+                          (("openssl")
+                           (string-append (assoc-ref inputs "openssl")
+                                          "/bin/openssl")))
+                        #t))
+
+                    ;; XXX: The code uses 'include' to include its own source
+                    ;; files, and "-L src" isn't enough in this case.
+                    (add-before 'build 'chdir
+                      (lambda _ (chdir "src") #t))
+                    (add-after 'build 'chdir-back
+                      (lambda _ (chdir "..") #t))
+
+                    (add-after 'install 'install-kernel
+                      (lambda* (#:key inputs outputs #:allow-other-keys)
+                        (let* ((out   (assoc-ref outputs "out"))
+                               (json  (assoc-ref inputs "guile-json"))
+                               (zmq   (assoc-ref inputs "guile-simple-zmq"))
+                               (deps  (list json zmq))
+                               (dir   (string-append
+                                       out "/share/jupyter/kernels/guile"))
+                               (effective (target-guile-effective-version)))
+                          ;; Install kernel.
+                          (install-file "src/kernel.json" dir)
+
+                          ;; Fix hard-coded file name in the kernel.
+                          (substitute* (string-append dir "/kernel.json")
+                            (("/home/.*/guile-jupyter-kernel.scm")
+                             (string-append out "/share/guile/site/"
+                                            (target-guile-effective-version)
+                                            "/guile-jupyter-kernel.scm"))
+                            (("\"guile\"")
+                             (string-append "\"" (assoc-ref inputs "guile")
+                                            "/bin/guile\""))
+                            (("-s")
+                             ;; Add '-L' and '-C' flags so that the kernel
+                             ;; finds its dependencies.
+                             (let ((-L (map (lambda (item)
+                                              (string-append "\"" item
+                                                             "/share/guile/site/"
+                                                             effective "\""))
+                                            deps))
+                                   (-C (map (lambda (item)
+                                              (string-append "\"" item
+                                                             "/lib/guile/"
+                                                             effective
+                                                             "/site-ccache\""))
+                                            deps)))
+                              (string-append "--no-auto-compile\""
+                                             (string-join -L ", \"-L\", "
+                                                          'prefix)
+                                             (string-join -C ", \"-C\", "
+                                                          'prefix)
+                                             ", \"-s"))))
+                          #t))))))
+      (inputs
+       `(("openssl" ,openssl)
+         ("guile" ,guile-2.2)
+         ("guile-json" ,guile-json)
+         ("guile-simple-zmq" ,guile-simple-zmq)))
+      (synopsis "Guile kernel for the Jupyter Notebook")
+      (description
+       "This package provides a Guile 2.x kernel for the Jupyter Notebook.  It
+allows users to interact with the Guile REPL through Jupyter.")
+      (home-page "https://github.com/jerry40/guile-kernel")
+      (license license:gpl3+))))
+
+(define-public guile-sparql
+  (package
+   (name "guile-sparql")
+   (version "0.0.7")
+   (source (origin
+            (method url-fetch)
+            (uri (string-append
+                  "https://github.com/roelj/guile-sparql/releases/download/"
+                  version "/guile-sparql-" version ".tar.gz"))
+            (sha256
+             (base32 "1drnvhsgl0gc5crmb16yyw1j98nkhwwcgssv9vgm36ng43nnzffd"))))
+   (build-system gnu-build-system)
+   (arguments `(#:tests? #f)) ; There are no tests.
+   (native-inputs
+    `(("pkg-config" ,pkg-config)))
+   (inputs
+    `(("guile" ,guile-2.2)))
+   (home-page "https://github.com/roelj/guile-sparql")
+   (synopsis "SPARQL module for Guile")
+   (description "This package provides the functionality to query a SPARQL
+endpoint.  Additionally, it provides an interface to write SPARQL queries
+using S-expressions.")
+   (license license:gpl3+)))
+
+(define-public guile-debbugs
+  (package
+    (name "guile-debbugs")
+    (version "0.0.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnu/guile-debbugs/guile-debbugs-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "16l8910p57im6s3j93xhdaqvgfy6ms5n97177mrch3y961z5hy0i"))
+              (modules '((guix build utils)))
+              (snippet
+               '(substitute* "Makefile.in"
+                  (("^godir = (.*)/ccache" _ prefix)
+                   (string-append "godir = " prefix "/site-ccache"))))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("guile" ,guile-2.2)
+       ("pkg-config" ,pkg-config)))
+    (home-page "https://savannah.gnu.org/projects/guile-debbugs/")
+    (synopsis "Guile interface to the Debbugs bug tracking service")
+    (description
+     "This package provides a Guile library to communicate with a Debbugs bug
+tracker's SOAP service, such as @url{https://bugs.gnu.org}.")
+    (license license:gpl3+)))
+
+(define-public guile-email
+  (let ((commit "fa52eac55e5946db89621a6c583d2aa357864dee")
+        (revision "1"))
+    (package
+      (name "guile-email")
+      (version (git-version "0.1.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://git.systemreboot.net/guile-email")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "1037mbz7qd9bzaqp8ysyhnl9ipd97fmj3b9jr8qfzx9179vvsj63"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("pkg-config" ,pkg-config)
+         ("autoconf" ,autoconf)
+         ("automake" ,automake)))
+      (inputs
+       `(("guile" ,guile-2.2)))
+      (home-page "https://git.systemreboot.net/guile-email")
+      (synopsis "Guile email parser")
+      (description "This package provides an email parser written in pure
+Guile.")
+      (license license:agpl3+))))
+
+(define-public guile-debbugs-next
+  (let ((commit "75a331d561c8b6f8efcf16216dab961c17759efe")
+        (revision "1"))
+    (package (inherit guile-debbugs)
+      (name "guile-debbugs")
+      (version (git-version "0.0.3" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://git.savannah.gnu.org/git/guile-debbugs.git")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0br3mgbw41bpc9x57jlghl0i8dz9nl63r4wzs5l47aqszf84870y"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("pkg-config" ,pkg-config)
+         ("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("texinfo" ,texinfo)))
+      (inputs
+       `(("guile" ,guile-2.2)
+         ("guile-email" ,guile-email))))))
+
+;; There has not been any release yet.
+(define-public guile-newt
+  (let ((commit "80c1e9e71945f833386d1632b52573e59325804f")
+        (revision "4"))
+    (package
+      (name "guile-newt")
+      (version (string-append "0-" revision "." (string-take commit 9)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://gitlab.com/mothacehe/guile-newt")
+                      (commit commit)))
+                (file-name (string-append name "-" version "-checkout"))
+                (sha256
+                 (base32
+                  "1w7qy4dw1f4bx622l6hw8mv49sf1ha8kch8j4nganyk8fj0wn695"))))
+      (build-system gnu-build-system)
+      (arguments
+       '(#:make-flags
+         '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
+      (inputs
+       `(("guile" ,guile-2.2)
+         ("newt" ,newt)))
+      (native-inputs
+       `(("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("pkg-config" ,pkg-config)))
+      (synopsis "Guile bindings to Newt")
+      (description
+       "This package provides bindings for Newt, a programming library for
+color text mode, widget based user interfaces.  The bindings are written in pure
+Scheme by using Guile’s foreign function interface.")
+      (home-page "https://gitlab.com/mothacehe/guile-newt")
+      (license license:gpl3+))))
+
+(define-public guile-mastodon
+  (package
+    (name "guile-mastodon")
+    (version "0.0.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://framagit.org/prouby/guile-mastodon.git")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1vblf3d1bbwna3l09p2ap5y8ycvl549bz6whgk78imyfmn28ygry"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)
+       ("gnutls" ,gnutls)
+       ("guile-json" ,guile-json)))
+    (home-page "https://framagit.org/prouby/guile-mastodon")
+    (synopsis "Guile Mastodon REST API module")
+    (description "This package provides Guile modules to access the
+@uref{https://docs.joinmastodon.org/api/, REST API of Mastodon}, a federated
+microblogging service.")
+    (license license:gpl3+)))
+
+;; There has not been any release yet.
+(define-public guile-parted
+  (let ((commit "ea3f1a1f6844775fc59d3078d2a09c62ffb341b8")
+        (revision "0"))
+    (package
+      (name "guile-parted")
+      (version (string-append "0-" revision "." (string-take commit 9)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://gitlab.com/mothacehe/guile-parted")
+                      (commit commit)))
+                (file-name (string-append name "-" version "-checkout"))
+                (sha256
+                 (base32
+                  "1q7425gpjlwi2wvhzq7kw046yyx7v6j6jyzkd1cr861iz34mjwiq"))))
+      (build-system gnu-build-system)
+      (arguments
+       '(#:make-flags
+         '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
+      (inputs
+       `(("guile" ,guile-2.2)
+         ("parted" ,parted)))
+      (propagated-inputs
+       `(("guile-bytestructures" ,guile-bytestructures)))
+      (native-inputs
+       `(("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("pkg-config" ,pkg-config)))
+      (synopsis "Guile bindings to GNU Parted")
+      (description
+       "This package provides bindings for GNU Parted library, a C library
+allowing disk partition tables creation and manipulation. The bindings are
+written in pure Scheme by using Guile's foreign function interface.")
+      (home-page "https://gitlab.com/mothacehe/guile-parted")
+      (license license:gpl3+))))
+
+(define-public guile-xosd
+  (package
+    (name "guile-xosd")
+    (version "0.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/alezost/" name
+                                  "/releases/download/v" version
+                                  "/" name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1ri5065c16kmgrf2pysn2ymxjqi5302lhpb07wkl1jr75ym8fn8p"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("guile" ,guile-2.2)
+       ("libx11" ,libx11)
+       ("libxext" ,libxext)
+       ("libxinerama" ,libxinerama)
+       ("xosd" ,xosd)))
+    (home-page "https://github.com/alezost/guile-xosd")
+    (synopsis "XOSD bindings for Guile")
+    (description
+     "Guile-XOSD provides Guile bindings for @code{libxosd},
+@uref{http://sourceforge.net/projects/libxosd/, the X On Screen Display
+library}.")
+    (license license:gpl3+)))
+
+(define-public guile-dbi
+  (package
+    (name "guile-dbi")
+    (version "2.1.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://download.gna.org/guile-dbi/guile-dbi-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "116njrprhgrsv1qm904sp3b02rq01fx639r433d657gyhw3x159n"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:configure-flags
+       (list (string-append
+              "--with-guile-site-dir=" %output "/share/guile/site/2.2"))
+       #:make-flags
+       (list (string-append "LDFLAGS=-Wl,-rpath=" %output "/lib:"
+                            (assoc-ref %build-inputs "guile-dbd-sqlite3") "/lib"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'patch-extension-path
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out     (assoc-ref outputs "out"))
+                    (dbi.scm (string-append
+                              out "/share/guile/site/2.2/dbi/dbi.scm"))
+                    (ext     (string-append out "/lib/libguile-dbi")))
+               (substitute* dbi.scm (("libguile-dbi") ext))
+               #t))))))
+    (inputs
+     `(("guile-dbd-sqlite3" ,guile-dbd-sqlite3))) ; only shared library, no scheme files
+    (propagated-inputs
+     `(("guile" ,guile-2.2)))
+    (synopsis "Guile database abstraction layer")
+    (home-page "http://home.gna.org/guile-dbi/guile-dbi.html")
+    (description
+     "guile-dbi is a library for Guile that provides a convenient interface to
+SQL databases.  Database programming with guile-dbi is generic in that the same
+programming interface is presented regardless of which database system is used.
+It currently supports MySQL, Postgres and SQLite3.")
+    (license license:gpl2+)))
+
+(define guile-dbi-bootstrap
+  (package
+    (inherit guile-dbi)
+    (name "guile-dbi-bootstrap")
+    (inputs '())
+    (arguments
+     (substitute-keyword-arguments (package-arguments guile-dbi)
+       ((#:make-flags _) '(list))))))
+
+(define-public guile-dbd-sqlite3
+  (package
+    (name "guile-dbd-sqlite3")
+    (version "2.1.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://download.gna.org/guile-dbi/guile-dbd-sqlite3-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "0rg71jchxd2y8x496s8zmfmikr5g8zxi8zv2ar3f7a23pph92iw2"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("guile-dbi-bootstrap" ,guile-dbi-bootstrap))) ; only required for headers
+    (inputs
+     `(("sqlite" ,sqlite)
+       ("zlib" ,(@ (gnu packages compression) zlib))))
+    (synopsis "Guile DBI driver for SQLite")
+    (home-page "https://github.com/jkalbhenn/guile-dbd-sqlite3")
+    (description
+     "guile-dbi is a library for Guile that provides a convenient interface to
+SQL databases.  This package implements the interface for SQLite.")
+    (license license:gpl2+)))
+
+(define-public guile-config
+  (package
+    (name "guile-config")
+    (version "0.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/a-sassmannshausen/guile-config")
+             (commit "ce12de3f438c6b2b59c43ee21bcd58251835fdf3")))
+       (file-name "guile-config-0.3-checkout")
+       (sha256 (base32 "02zbpin0r9m2vxmr7mv68v3xdn247dcck56kbzjn0gj4c2rhih85"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)
+       ("texinfo" ,texinfo)))
+    (inputs `(("guile" ,guile-2.2)))
+    (synopsis
+     "Guile application configuration parsing library.")
+    (description
+     "Guile Config is a library providing a declarative approach to
+application configuration specification.  The library provides clean
+configuration declaration forms, and processors that take care of:
+configuration file creation; configuration file parsing; command-line
+parameter parsing using getopt-long; basic GNU command-line parameter
+generation (--help, --usage, --version); automatic output generation for the
+above command-line parameters.")
+    (home-page
+     "https://gitlab.com/a-sassmannshausen/guile-config")
+    (license license:gpl3+)))
+
+(define-public guile-hall
+  (package
+    (name "guile-hall")
+    (version "0.1.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/a-sassmannshausen/guile-hall")
+             (commit "7d1094a12fe917209ce5b76c681cc8c862d4c65b")))
+       (file-name "guile-hall-0.1.1-checkout")
+       (sha256
+        (base32
+         "03kb09cjca98hlbx9mj12mqinzsnnvp6ci6i975n88pjhaxigyp1"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:modules
+       ((ice-9 match)
+        (ice-9 ftw)
+        ,@%gnu-build-system-modules)
+       #:phases
+       (modify-phases
+           %standard-phases
+         (add-after
+             'install
+             'hall-wrap-binaries
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin/"))
+                    (site (string-append out "/share/guile/site")))
+               (match (scandir site)
+                 (("." ".." version)
+                  (let ((modules (string-append site "/" version))
+                        (compiled-modules
+                         (string-append
+                          out
+                          "/lib/guile/"
+                          version
+                          "/site-ccache")))
+                    (for-each
+                     (lambda (file)
+                       (wrap-program
+                           (string-append bin file)
+                         `("GUILE_LOAD_PATH" ":" prefix (,modules))
+                         `("GUILE_LOAD_COMPILED_PATH"
+                           ":"
+                           prefix
+                           (,compiled-modules))))
+                     ,(list 'list "hall"))
+                    #t)))))))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)
+       ("texinfo" ,texinfo)))
+    (inputs `(("guile" ,guile-2.2)))
+    (propagated-inputs
+     `(("guile-config" ,guile-config)))
+    (synopsis "Guile project tooling")
+    (description
+     "Hall is a command-line application and a set of Guile libraries that
+allow you to quickly create and publish Guile projects.  It allows you to
+transparently support the GNU build system, manage a project hierarchy &
+provides tight coupling to Guix.")
+    (home-page
+     "https://gitlab.com/a-sassmannshausen/guile-hall")
+    (license license:gpl3+)))
+
+(define-public guile-ics
+  (package
+    (name "guile-ics")
+    (version "0.2.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/artyom-poptsov/guile-ics")
+                    (commit (string-append "v" version))))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "0qjjvadr7gibdq9jvwkmlkb4afsw9n2shfj9phpiadinxk3p4m2g"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf-wrapper)
+       ("automake" ,automake)
+       ("texinfo" ,texinfo)
+       ;; Gettext brings 'AC_LIB_LINKFLAGS_FROM_LIBS'.
+       ("gettext" ,gettext-minimal)
+       ("pkg-config" ,pkg-config)))
+    (inputs `(("guile" ,guile-2.2) ("which" ,which)))
+    (propagated-inputs `(("guile-lib" ,guile-lib)))
+    (home-page "https://github.com/artyom-poptsov/guile-ics")
+    (synopsis "Guile parser library for the iCalendar format")
+    (description
+     "Guile-ICS is an iCalendar (RFC5545) format parser library written in
+pure Scheme.  The library can be used to read and write iCalendar data.
+
+The library is shipped with documentation in Info format and usage examples.")
+    (license license:gpl3+)))
+
+(define-public guile-wisp
+  (package
+    (name "guile-wisp")
+    (version "0.9.9")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://bitbucket.org/ArneBab/"
+                                  "wisp/downloads/wisp-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1xa0f0fvcrimqap50azv5872bfx8jbhc6baxa1prpbwcksbh8gdz"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:modules ((guix build gnu-build-system)
+                  (guix build utils)
+                  (ice-9 rdelim)
+                  (ice-9 popen))
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'patch-/usr/bin/env
+           (lambda _
+             (substitute* "Makefile.in"
+               (("/usr/bin/env bash") (which "bash"))
+               (("\\$\\(GUILE_EFFECTIVE_VERSION\\)/site")
+                "site/$(GUILE_EFFECTIVE_VERSION)")) ;use the right order
+             #t))
+         ;; auto compilation breaks, but if we set HOME to /tmp,
+         ;; that works ok
+         (add-before 'check 'auto-compile-hacky-workaround
+           (lambda _ (setenv "HOME" "/tmp") #t))
+         (add-after 'install 'install-go-files
+           (lambda* (#:key outputs inputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (effective (read-line
+                                (open-pipe* OPEN_READ
+                                            "guile" "-c"
+                                            "(display (effective-version))")))
+                    (module-dir (string-append out "/share/guile/site/"
+                                               effective))
+                    (object-dir (string-append out "/lib/guile/" effective
+                                               "/site-ccache"))
+                    (prefix     (string-length module-dir)))
+               ;; compile to the destination
+               (for-each (lambda (file)
+                           (let* ((base (string-drop (string-drop-right file 4)
+                                                     prefix))
+                                  (go   (string-append object-dir base ".go")))
+                             (invoke "guild" "compile" "-L" module-dir
+                                     file "-o" go)))
+                         (find-files module-dir "\\.scm$"))
+               #t))))))
+    (home-page "https://draketo.de/english/wisp")
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (native-inputs
+     `(("python" ,python)
+       ("pkg-config" ,pkg-config)))
+    (synopsis "Whitespace to lisp syntax for Guile")
+    (description "Wisp is a syntax for Guile which provides a Python-like
+whitespace-significant language.  It may be easier on the eyes for some
+users and in some situations.")
+    (license license:gpl3+)))
+
+(define-public guile-sly
+  (package
+    (name "guile-sly")
+    (version "0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://files.dthompson.us/sly/sly-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1svzlbz2vripmyq2kjh0rig16bsrnbkwbsm558pjln9l65mcl4qq"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  (substitute* "configure"
+                    (("_guile_required_version=\"2.0.11\"")
+                     "_guile_required_version=\"2\"")
+                    (("ac_subst_vars='")
+                     "ac_subst_vars='GUILE_EFFECTIVE_VERSION\n"))
+                  (substitute* (find-files "." "Makefile.in")
+                    (("moddir = .*$")
+                     (string-append
+                      "moddir = "
+                      "$(prefix)/share/guile/site/@GUILE_EFFECTIVE_VERSION@\n"))
+                    (("godir = .*$")
+                     (string-append
+                      "godir = "
+                      "$(prefix)/lib/guile/@GUILE_EFFECTIVE_VERSION@/site-ccache\n")))
+                  #t))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:configure-flags
+       (list (string-append "--with-libfreeimage-prefix="
+                            (assoc-ref %build-inputs "freeimage"))
+             (string-append "--with-libgslcblas-prefix="
+                            (assoc-ref %build-inputs "gsl")))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (propagated-inputs
+     `(("guile-sdl" ,guile-sdl)
+       ("guile-opengl" ,guile-opengl)))
+    (inputs
+     `(("guile" ,guile-2.2)
+       ("gsl" ,gsl)
+       ("freeimage" ,freeimage)
+       ("mesa" ,mesa)))
+    (synopsis "2D/3D game engine for GNU Guile")
+    (description "Sly is a 2D/3D game engine written in Guile Scheme.  Sly
+features a functional reactive programming interface and live coding
+capabilities.")
+    (home-page "https://dthompson.us/projects/sly.html")
+    (license license:gpl3+)))
+
+(define-public g-wrap
+  (package
+    (name "g-wrap")
+    (version "1.9.15")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://savannah/g-wrap/g-wrap-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0ak0bha37dfpj9kmyw1r8fj8nva639aw5xr66wr5gd3l1rqf5xhg"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (propagated-inputs
+     `(("guile" ,guile-2.2)
+       ("guile-lib" ,guile-lib)))
+    (inputs
+     `(("libffi" ,libffi)))
+    (arguments
+     `(#:configure-flags '("--disable-Werror")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'pre-configure
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (substitute* (find-files "." "^Makefile.in$")
+                 (("guilemoduledir =.*guile/site" all)
+                  (string-append all "/@GUILE_EFFECTIVE_VERSION@")))
+               #t))))))
+    (synopsis "Generate C bindings for Guile")
+    (description "G-Wrap is a tool and Guile library for generating function
+wrappers for inter-language calls.  It currently only supports generating Guile
+wrappers for C functions.  Given a definition of the types and prototypes for
+a given C interface, G-Wrap will automatically generate the C code that
+provides access to that interface and its types from the Scheme level.")
+    (home-page "https://www.nongnu.org/g-wrap/index.html")
+    (license license:lgpl2.1+)))
+
+(define-public guile-miniadapton
+  (let ((commit "1b5749422304567c96ac5367f2221dda9eff5880")
+        (revision "1"))
+    (package
+      (name "guile-miniadapton")
+      (version (string-append "0-" revision "." (string-take commit 9)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/fisherdj/miniAdapton.git")
+                      (commit commit)))
+                (file-name (string-append name "-" version "-checkout"))
+                (sha256
+                 (base32
+                  "09q51zkw2fypad5xixskfzw2cjhjgs5cswdp3i7cpp651rb3zndh"))))
+      (build-system guile-build-system)
+      (native-inputs
+       `(("guile" ,guile-2.2)))
+      (home-page "https://github.com/fisherdj/miniAdapton")
+      (synopsis "Minimal implementation of incremental computation in Guile
+Scheme")
+      (description "This package provides a complete Scheme implementation of
+miniAdapton, which implements the core functionality of the Adapton system for
+incremental computation (also known as self-adjusting computation).  Like
+Adapton, miniAdapton allows programmers to safely combine mutation and
+memoization.  miniAdapton is built on top of an even simpler system,
+microAdapton.  Both miniAdapton and microAdapton are designed to be easy to
+understand, extend, and port to host languages other than Scheme.")
+      (license license:expat))))
+
+(define-public guile-reader
+  (package
+    (name "guile-reader")
+    (version "0.6.2")
+    (source  (origin
+               (method url-fetch)
+               (uri (string-append "mirror://savannah/guile-reader/guile-reader-"
+                                   version ".tar.gz"))
+               (sha256
+                (base32
+                 "0592s2s8ampqmqwilc4fvcild6rb9gy79di6vxv5kcdmv23abkgx"))))
+    (build-system gnu-build-system)
+    (native-inputs `(("pkgconfig" ,pkg-config)
+                     ("gperf" ,gperf-3.0)))
+    (inputs `(("guile" ,guile-2.2)))
+    (synopsis "Framework for building readers for GNU Guile")
+    (description
+     "Guile-Reader is a simple framework for building readers for GNU Guile.
+
+The idea is to make it easy to build procedures that extend Guile’s read
+procedure.  Readers supporting various syntax variants can easily be written,
+possibly by re-using existing “token readers” of a standard Scheme
+readers.  For example, it is used to implement Skribilo’s R5RS-derived
+document syntax.
+
+Guile-Reader’s approach is similar to Common Lisp’s “read table”, but
+hopefully more powerful and flexible (for instance, one may instantiate as
+many readers as needed).")
+    (home-page "https://www.nongnu.org/guile-reader/")
+    (license license:gpl3+)))
+
+(define-public guile2.2-reader
+  (deprecated-package "guile2.2-reader" guile-reader))
+
+(define-public guile-ncurses
+  (package
+    (name "guile-ncurses")
+    (version "2.2")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append "mirror://gnu/guile-ncurses/guile-ncurses-"
+                                 version ".tar.gz"))
+             (sha256
+              (base32
+               "1wvggbr4xv8idh1hzd8caj4xfp4pln78a7w1wqzd4zgzwmnzxr2f"))))
+    (build-system gnu-build-system)
+    (inputs `(("ncurses" ,ncurses)
+              ("guile" ,guile-2.2)))
+    (native-inputs `(("pkg-config" ,pkg-config)))
+    (arguments
+     '(#:configure-flags (list "--with-ncursesw"  ; Unicode support
+                               "--with-gnu-filesystem-hierarchy")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'fix-libguile-ncurses-file-name
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "make" "install"
+                     "-C" "src/ncurses"
+                     "-j" (number->string
+                           (parallel-job-count)))
+             (let* ((out   (assoc-ref outputs "out"))
+                    (dir   "src/ncurses")
+                    (files (find-files dir ".scm")))
+               (substitute* files
+                 (("\"libguile-ncurses\"")
+                  (format #f "\"~a/lib/guile/2.2/libguile-ncurses\""
+                          out)))
+               #t))))))
+    (home-page "https://www.gnu.org/software/guile-ncurses/")
+    (synopsis "Guile bindings to ncurses")
+    (description
+     "guile-ncurses provides Guile language bindings for the ncurses
+library.")
+    (license license:lgpl3+)))
+
+(define-public guile-ncurses/gpm
+  (package
+    (inherit guile-ncurses)
+    (name "guile-ncurses-with-gpm")
+    (inputs `(("ncurses" ,ncurses/gpm)
+              ("guile" ,guile-2.2)))))
+
+(define-public guile-lib
+  (package
+    (name "guile-lib")
+    (version "0.2.6.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://savannah/guile-lib/guile-lib-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0aizxdif5dpch9cvs8zz5g8ds5s4xhfnwza2il5ji7fv2h7ks7bd"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:make-flags
+       '("GUILE_AUTO_COMPILE=0")        ; to prevent guild errors
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'patch-module-dir
+           (lambda _
+             (substitute* "src/Makefile.in"
+               (("^moddir = ([[:graph:]]+)")
+                "moddir = $(datadir)/guile/site/@GUILE_EFFECTIVE_VERSION@\n")
+               (("^godir = ([[:graph:]]+)")
+                "godir = \
+$(libdir)/guile/@GUILE_EFFECTIVE_VERSION@/site-ccache\n"))
+             #t)))))
+    (native-inputs `(("pkg-config" ,pkg-config)))
+    (inputs `(("guile" ,guile-2.2)))
+    (home-page "https://www.nongnu.org/guile-lib/")
+    (synopsis "Collection of useful Guile Scheme modules")
+    (description
+     "Guile-Lib is intended as an accumulation place for pure-scheme Guile
+modules, allowing for people to cooperate integrating their generic Guile
+modules into a coherent library.  Think \"a down-scaled, limited-scope CPAN
+for Guile\".")
+
+    ;; The whole is under GPLv3+, but some modules are under laxer
+    ;; distribution terms such as LGPL and public domain.  See `COPYING' for
+    ;; details.
+    (license license:gpl3+)))
+
+(define-public guile2.0-lib
+  (package
+    (inherit guile-lib)
+    (name "guile2.0-lib")
+    (inputs `(("guile" ,guile-2.0)))))
+
+(define-public guile2.2-lib
+  (deprecated-package "guile2.2-lib" guile-lib))
+
+(define-public guile-minikanren
+  (package
+    (name "guile-minikanren")
+    (version "20150424.e844d85")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/ijp/minikanren.git")
+                    (commit "e844d85512f8c055d3f96143ee506007389a25e3")))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "0r50jlpzi940jlmxyy3ddqqwmj5r12gb4bcv0ssini9v8km13xz6"))))
+    (build-system guile-build-system)
+    (native-inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "https://github.com/ijp/minikanren")
+    (synopsis "MiniKanren declarative logic system, packaged for Guile")
+    (description
+     "MiniKanren is a relational programming extension to the Scheme
+programming Language, written as a smaller version of Kanren suitable for
+pedagogical purposes.  It is featured in the book, The Reasoned Schemer,
+written by Dan Friedman, William Byrd, and Oleg Kiselyov.
+
+This is Ian Price's r6rs packaged version of miniKanren, which deviates
+slightly from miniKanren mainline.
+
+See http://minikanren.org/ for more on miniKanren generally.")
+    (license license:expat)))
+
+(define-public guile2.0-minikanren
+  (package
+    (inherit guile-minikanren)
+    (name "guile2.0-minikanren")
+    (native-inputs `(("guile" ,guile-2.0)))))
+
+(define-public guile2.2-minikanren
+  (deprecated-package "guile2.2-minikanren" guile-minikanren))
+
+(define-public guile-irregex
+  (package
+    (name "guile-irregex")
+    (version "0.9.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://synthcode.com/scheme/irregex/irregex-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "1ia3m7dp3lcxa048q0gqbiwwsyvn99baw6xkhb4bhhzn4k7bwyqq"))))
+    (build-system guile-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'move-files-around
+                    (lambda _
+                      ;; Move the relevant source files to src/ and create the
+                      ;; rx/ directory to match the expected module hierarchy.
+                      (mkdir-p "src/rx/source")
+                      (rename-file "irregex-guile.scm"
+                                   "src/rx/irregex.scm")
+                      (rename-file "irregex.scm"
+                                   "src/rx/source/irregex.scm")
+                      ;; Not really reachable via guile's packaging system,
+                      ;; but nice to have around.
+                      (rename-file "irregex-utils.scm"
+                                   "src/rx/source/irregex-utils.scm")
+                      #t)))
+       #:source-directory "src"))
+    (native-inputs
+     `(("guile" ,guile-2.2)))
+    (home-page "http://synthcode.com/scheme/irregex")
+    (synopsis "S-expression based regular expressions")
+    (description
+     "Irregex is an s-expression based alternative to your classic
+string-based regular expressions.  It implements SRFI 115 and is deeply
+inspired by the SCSH regular expression system.")
+    (license license:bsd-3)))
+
+(define-public guile2.0-irregex
+  (package
+    (inherit guile-irregex)
+    (name "guile2.0-irregex")
+    (native-inputs `(("guile" ,guile-2.0)))))
+
+(define-public guile2.2-irregex
+  (deprecated-package "guile2.2-irregex" guile-irregex))
+
+(define-public haunt
+  (package
+    (name "haunt")
+    (version "0.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://files.dthompson.us/haunt/haunt-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "056z4znikk83nr5mr0x2ac3iinqbywa2bvb37mhr566a1q50isfc"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:modules ((ice-9 match) (ice-9 ftw)
+                  ,@%gnu-build-system-modules)
+       #:tests? #f ; test suite is non-deterministic :(
+       #:phases (modify-phases %standard-phases
+                  (add-after 'install 'wrap-haunt
+                    (lambda* (#:key inputs outputs #:allow-other-keys)
+                      ;; Wrap the 'haunt' command to refer to the right
+                      ;; modules.
+                      (let* ((out  (assoc-ref outputs "out"))
+                             (bin  (string-append out "/bin"))
+                             (site (string-append
+                                    out "/share/guile/site"))
+                             (deps (list (assoc-ref inputs "guile-reader")
+                                         (assoc-ref inputs "guile-commonmark"))))
+                        (match (scandir site)
+                          (("." ".." version)
+                           (let ((modules (string-append site "/" version))
+                                 (compiled-modules (string-append
+                                                    out "/lib/guile/" version
+                                                    "/site-ccache")))
+                             (wrap-program (string-append bin "/haunt")
+                               `("GUILE_LOAD_PATH" ":" prefix
+                                 (,modules
+                                  ,@(map (lambda (dep)
+                                           (string-append dep
+                                                          "/share/guile/site/"
+                                                          version))
+                                         deps)))
+                               `("GUILE_LOAD_COMPILED_PATH" ":" prefix
+                                 (,compiled-modules
+                                  ,@(map (lambda (dep)
+                                           (string-append dep "/lib/guile/"
+                                                          version
+                                                          "/site-ccache"))
+                                         deps))))
+                             #t)))))))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("texinfo" ,texinfo)))
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (propagated-inputs
+     `(("guile-reader" ,guile-reader)
+       ("guile-commonmark" ,guile-commonmark)))
+    (synopsis "Functional static site generator")
+    (description "Haunt is a static site generator written in Guile
+Scheme.  Haunt features a functional build system and an extensible
+interface for reading articles in any format.")
+    (home-page "http://haunt.dthompson.us")
+    (license license:gpl3+)))
+
+(define-public guile2.0-haunt
+  (package
+    (inherit haunt)
+    (name "guile2.0-haunt")
+    (inputs `(("guile" ,guile-2.0)))))
+
+(define-public guile2.2-haunt
+  (deprecated-package "guile2.2-haunt" haunt))
+
+(define-public guile-redis
+  (package
+    (name "guile-redis")
+    (version "1.0.0")
+    (home-page "https://github.com/aconchillo/guile-redis")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append home-page "/archive/" version ".tar.gz"))
+              (sha256
+               (base32
+                "1dp5fmqvma59pvp1nfpq6hqgbmjici8sd1y8llahl87fynw1dvr9"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("pkg-config" ,pkg-config)
+       ("guile" ,guile-2.2)))
+    (synopsis "Redis client library for Guile")
+    (description "Guile-redis provides a Scheme interface to the Redis
+key-value cache and store.")
+    (license license:lgpl3+)))
+
+(define-public guile2.0-redis
+  (package
+    (inherit guile-redis)
+    (name "guile2.0-redis")
+    (native-inputs `(("guile" ,guile-2.0)
+                     ,@(alist-delete "guile"
+                                     (package-native-inputs guile-redis))))))
+
+(define-public guile2.2-redis
+  (deprecated-package "guile2.2-redis" guile-redis))
+
+(define-public guile-commonmark
+  (package
+    (name "guile-commonmark")
+    (version "0.1.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/OrangeShark/" name
+                                  "/releases/download/v" version
+                                  "/" name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0kzclwkfijj8xka3g9kfj53y67c34ndfy84swdbw3j7y962ndxq6"))
+              (modules '((guix build utils)))
+              (snippet
+               ;; Install .scm files in the right place (see
+               ;; <https://github.com/OrangeShark/guile-commonmark/issues/12>.)
+               '(begin
+                  (substitute* "Makefile.in"
+                    (("^moddir = \\$\\(datadir\\)/share")
+                     "moddir = $(datadir)"))
+                  #t))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("guile" ,guile-2.2)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (synopsis "CommonMark parser for Guile")
+    (description
+     "guile-commonmark is a library for parsing CommonMark, a fully specified
+variant of Markdown.  The library is written in Guile Scheme and is designed
+to transform a CommonMark document to SXML.  guile-commonmark tries to closely
+follow the @uref{http://commonmark.org/, CommonMark spec}, the main difference
+is no support for parsing block and inline level HTML.")
+    (home-page "https://github.com/OrangeShark/guile-commonmark")
+    (license license:lgpl3+)))
+
+(define-public guile2.0-commonmark
+  (package
+    (inherit guile-commonmark)
+    (name "guile2.0-commonmark")
+    (inputs `(("guile" ,guile-2.0)))))
+
+(define-public guile2.2-commonmark
+  (deprecated-package "guile2.2-commonmark" guile-commonmark))
+
+(define-public mcron
+  (package
+    (name "mcron")
+    (version "1.1.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnu/mcron/mcron-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1i9mcp6r6my61zfiydsm3n6my41mwvl7dfala4q29qx0zn1ynlm4"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:phases (modify-phases %standard-phases
+                  (add-before 'check 'set-timezone
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      ;; 'tests/job-specifier.scm' expects to be running in
+                      ;; UTC-2 or something.
+                      ;; FIXME: This issue is being investigated upstream, for
+                      ;; now we'll just skip the tests (see below):
+                      ;; <https://lists.gnu.org/archive/html/bug-mcron/2018-04/msg00005.html>.
+                      (let ((tzdata (assoc-ref inputs "tzdata")))
+                        (setenv "TZDIR"
+                                (string-append tzdata
+                                               "/share/zoneinfo"))
+                        (setenv "TZ" "UTC-2")
+                        #t)))
+                  (add-before 'check 'adjust-tests
+                    (lambda _
+                      (substitute* "tests/job-specifier.scm"
+                        ;; (getpw) fails with "entry not found" in the build
+                        ;; environment, so pass an argument.
+                        (("\\(getpw\\)")
+                         "(getpwnam (getuid))")
+                        ;; The build environment lacks an entry for root in
+                        ;; /etc/passwd.
+                        (("\\(getpw 0\\)")
+                         "(getpwnam \"nobody\")")
+
+                        ;; FIXME: Skip the 4 faulty tests (see above).
+                        (("\\(test-equal \"next-year\"" all)
+                         (string-append "(test-skip 4)\n" all)))
+                      #t)))))
+    (native-inputs `(("pkg-config" ,pkg-config)
+                     ("tzdata" ,tzdata-for-tests)))
+    (inputs `(("ed" ,ed) ("which" ,which) ("guile" ,guile-2.2)))
+    (home-page "https://www.gnu.org/software/mcron/")
+    (synopsis "Run jobs at scheduled times")
+    (description
+     "GNU Mcron is a complete replacement for Vixie cron.  It is used to run
+tasks on a schedule, such as every hour or every Monday.  Mcron is written in
+Guile, so its configuration can be written in Scheme; the original cron
+format is also supported.")
+    (license license:gpl3+)))
+
+(define-public mcron2
+  ;; This was mthl's mcron development branch, and it became mcron 1.1.
+  (deprecated-package "mcron2" mcron))