Merge branch 'master' into staging

36 files changed, 1637 insertions, 890 deletions

diff --git a/build-aux/git-authenticate.scm b/build-aux/git-authenticate.scm
index 980a6d8e9f..d92da90758 100644
--- a/build-aux/git-authenticate.scm
+++ b/build-aux/git-authenticate.scm
@@ -166,8 +166,12 @@
      "0154 E1B9 1CC9 D9EF 7764  8DE7 F3A7 27DB 44FC CA36")
     ("roelj"
      "17CB 2812 EB63 3DFF 2C7F  0452 C3EC 1DCA 8430 72E1")
-    ("roptat"
+    ("roptat (old)"
      "B5FA E628 5B41 3728 B2A0  FAED 4311 1F45 2008 6A0C")
+    ("roptat"
+     ;; From commit 2cbede5935eb6a40173bbdf30a9ad22bf7574c22 (Jan. 2020).  See
+     ;; <https://lists.gnu.org/archive/html/guix-devel/2020-01/msg00499.html>.
+     "1EFB 0909 1F17 D28C CBF9  B13A 53D4 57B2 D636 EE82")
     ("samplet"
      ;; primary: "D6B0 C593 DA8C 5EDC A44C  7A58 C336 91F7 1188 B004"
      "A02C 2D82 0EF4 B25B A6B5  1D90 2AC6 A5EC 1C35 7C59")
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 95222a5d81..7b46e2cb6f 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -23,7 +23,7 @@
 ;;; Copyright © 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2019 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
-;;; Copyright © 2019 Alexandros Theodotou <alex@zrythm.org>
+;;; Copyright © 2019, 2020 Alexandros Theodotou <alex@zrythm.org>
 ;;; Copyright © 2019 Christopher Lemmer Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2019 Jan Wielkiewicz <tona_kosmicznego_smiecia@interia.pl>
 ;;; Copyright © 2019 Hartmt Goebel <h.goebel@crazy-compilers.com>
@@ -54,6 +54,7 @@
   #:use-module (guix build-system waf)
   #:use-module (guix build-system trivial)
   #:use-module (guix build-system cmake)
+  #:use-module (guix build-system meson)
   #:use-module (guix build-system python)
   #:use-module (guix build-system glib-or-gtk)
   #:use-module (gnu packages)
@@ -2043,7 +2044,7 @@ lv2-c++-tools.")
 (define-public openal
   (package
     (name "openal")
-    (version "1.20.0")
+    (version "1.20.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -2051,7 +2052,7 @@ lv2-c++-tools.")
                     version ".tar.bz2"))
               (sha256
                (base32
-                "03p6s5gap0lvig2fs0a8nib5rxsc24dbqjsydpwvlm5l49wlk2f0"))))
+                "0vax0b1lgd4212bpxa1rciz52d4mv3dkfvcbbhzw4cjp698v1kmn"))))
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f  ; no check target
@@ -4009,3 +4010,33 @@ in the package.")
     ;; (see the file 'COPYING.LGPL'). This allows writing ECI applications
     ;; that are not licensed under GPL.
     (license (list license:gpl2 license:lgpl2.1))))
+
+(define-public libaudec
+  (package
+    (name "libaudec")
+    (version "0.2")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+               (url "https://git.zrythm.org/git/libaudec")
+               (commit (string-append "v" version))))
+        (file-name (git-file-name name version))
+        (sha256
+          (base32
+            "0lfydvs92b0hr72z71ci3yi356rjzi162pgms8dphgg18bz8dazv"))))
+   (build-system meson-build-system)
+   (arguments
+    `(#:configure-flags `("-Denable_tests=true -Denable_ffmpeg=true")))
+   (inputs
+    `(("libsamplerate" ,libsamplerate)
+      ("libsndfile" ,libsndfile)
+      ("ffmpeg" ,ffmpeg)))
+   (native-inputs
+     `(("pkg-config", pkg-config)))
+   (synopsis "Library for reading and resampling audio files")
+   (description "libaudec is a wrapper library over ffmpeg, sndfile and
+libsamplerate for reading and resampling audio files, based on Robin Gareus'
+@code{audio_decoder} code.")
+   (home-page "https://git.zrythm.org/cgit/libaudec")
+   (license license:agpl3+)))
diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 562e151fef..c1da8ac106 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -694,6 +694,34 @@ annotations.")
      "This is a manifest package for Illumina's EPIC methylation arrays.")
     (license license:artistic2.0)))
 
+;; This is a CRAN package, but it depends on r-bsgenome-hsapiens-ucsc-hg19
+;; from Bioconductor.
+(define-public r-deconstructsigs
+  (package
+    (name "r-deconstructsigs")
+    (version "1.8.0")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "deconstructSigs" version))
+              (sha256
+               (base32
+                "014x0nb23jb98666kaav2phkvmkr38pi38jv0dqd4jv7zp0gdf1a"))))
+    (properties
+     `((upstream-name . "deconstructSigs")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-bsgenome" ,r-bsgenome)
+       ("r-bsgenome-hsapiens-ucsc-hg19" ,r-bsgenome-hsapiens-ucsc-hg19)
+       ("r-genomeinfodb" ,r-genomeinfodb)
+       ("r-reshape2" ,r-reshape2)))
+    (home-page "https://github.com/raerose01/deconstructSigs")
+    (synopsis "Identifies signatures present in a tumor sample")
+    (description "This package takes sample information in the form of the
+fraction of mutations in each of 96 trinucleotide contexts and identifies
+the weighted combination of published signatures that, when summed, most
+closely reconstructs the mutational profile.")
+    (license license:gpl2+)))
+
 (define-public r-do-db
   (package
     (name "r-do-db")
@@ -2160,14 +2188,14 @@ possible, parallelization is achieved using the BiocParallel framework.")
 (define-public r-destiny
   (package
     (name "r-destiny")
-    (version "3.0.0")
+    (version "3.0.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "destiny" version))
        (sha256
         (base32
-         "0vj9nk8g6i4vzm6cnzvbsqcvyk6fhmx0a0nxxrciarffyhqk81yz"))))
+         "1hzg53p1cz21bvnfyyz40bpvjhg89zi3rahlqf0c4w85iwc1i4vi"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-biobase" ,r-biobase)
@@ -3165,14 +3193,14 @@ are standardized and usable by the accompanying mutossGUI package.")
 (define-public r-metap
   (package
     (name "r-metap")
-    (version "1.2")
+    (version "1.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "metap" version))
        (sha256
         (base32
-         "0pfbcixjrzx81l9wqhlp55khg9k63zf8pvg2n39c19akr4ppzhvf"))))
+         "1jmmmmjiklaxfl604hwqil193ydaghvd5jv8xsr4bx3pzn5i9kvz"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-lattice" ,r-lattice)
@@ -5164,14 +5192,14 @@ packages.")
 (define-public r-ropls
   (package
     (name "r-ropls")
-    (version "1.18.6")
+    (version "1.18.8")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "ropls" version))
        (sha256
         (base32
-         "1sm2fmygrra9gdcs90lmk5y1ag6arga6159kggx4ij8bkhyc66vb"))))
+         "033i39r4037nd54jnp5zdn1vpzh61r671vmq0sf8dqrfblhm4w7a"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-biobase" ,r-biobase)
@@ -7177,14 +7205,14 @@ access.")
 (define-public r-multiassayexperiment
   (package
     (name "r-multiassayexperiment")
-    (version "1.12.1")
+    (version "1.12.2")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "MultiAssayExperiment" version))
        (sha256
         (base32
-         "0xpi5qpffg9pn8szkvicpc43a0r534wngyqwvsip8w66zi8c9kpc"))))
+         "0722f3jl1xq8k8w7vrv986jd16bgysqp3n07pgmdn0hh1zh2mcqc"))))
     (properties
      `((upstream-name . "MultiAssayExperiment")))
     (build-system r-build-system)
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index e8dac2a12b..b7b80cec02 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -7349,13 +7349,13 @@ checks on R packages that are to be submitted to the Bioconductor repository.")
 (define-public r-s4vectors
   (package
     (name "r-s4vectors")
-    (version "0.24.2")
+    (version "0.24.3")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "S4Vectors" version))
               (sha256
                (base32
-                "1s1h00k2ki7sd0hz4l8n41xr6ixszag7lm0ryrbb08idgcy16ipn"))))
+                "01f7dms4kw9ajwqlvh5s47riv748xrrs41na03byhjvn4fbdc44y"))))
     (properties
      `((upstream-name . "S4Vectors")))
     (build-system r-build-system)
@@ -7930,13 +7930,13 @@ as well as query and modify the browser state, such as the current viewport.")
 (define-public r-genomicfeatures
   (package
     (name "r-genomicfeatures")
-    (version "1.38.0")
+    (version "1.38.1")
     (source (origin
               (method url-fetch)
               (uri (bioconductor-uri "GenomicFeatures" version))
               (sha256
                (base32
-                "0xd9rlsicycbanbcfhc97cj8b8vk94g7lkbmhk37w1511bq35wz5"))))
+                "1c1x29f447dv0i1wi88paji645lfsgmg4ckn19hyhlra72smhzqc"))))
     (properties
      `((upstream-name . "GenomicFeatures")))
     (build-system r-build-system)
@@ -10317,14 +10317,14 @@ family of feature/genome hypotheses.")
 (define-public r-gviz
   (package
     (name "r-gviz")
-    (version "1.30.0")
+    (version "1.30.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "Gviz" version))
        (sha256
         (base32
-         "1p7n4yc77272rd8ybsim3rcg6kf6wmc95pwwav40b754imxn263z"))))
+         "03jj193fzmhvkjw8f5zk6wgflkvm3phny0q38scawcplfsyb8z64"))))
     (properties `((upstream-name . "Gviz")))
     (build-system r-build-system)
     (propagated-inputs
@@ -12937,14 +12937,14 @@ analyses in addition to large-scale sequence-level searches.")
 (define-public r-diversitree
   (package
     (name "r-diversitree")
-    (version "0.9-11")
+    (version "0.9-13")
     (source
       (origin
         (method url-fetch)
         (uri (cran-uri "diversitree" version))
         (sha256
          (base32
-          "1jqfjmmaigq581l4zxysmkhld0xv6izlbr1hihf9zplkix36majc"))))
+          "00vi4klywi35hd170ksjv3xja3hqqbkcidcnrrlpgv4179k0azix"))))
     (build-system r-build-system)
     (native-inputs
      `(("gfortran" ,gfortran)))
@@ -14626,21 +14626,23 @@ let before_space s =
                (let* ((out (assoc-ref outputs "out"))
                       (bin (string-append out "/bin")))
                  (copy-recursively "bin" bin))
-               #t)))))
+               #t)))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
       (inputs
        `(("zlib" ,zlib "static")
          ("gsl" ,gsl)
-         ("ocaml-ounit" ,ocaml-ounit)
-         ("ocaml-batteries" ,ocaml-batteries)
-         ("ocaml-camlzip" ,camlzip)
-         ("ocaml-csv" ,ocaml-csv)
-         ("ocaml-sqlite3" ,ocaml-sqlite3)
-         ("ocaml-xmlm" ,ocaml-xmlm)
-         ("ocaml-mcl" ,ocaml-mcl)
-         ("ocaml-gsl" ,ocaml-gsl-1)))
+         ("ocaml-ounit" ,(package-with-ocaml4.07 ocaml-ounit))
+         ("ocaml-batteries" ,(package-with-ocaml4.07 ocaml-batteries))
+         ("ocaml-camlzip" ,(package-with-ocaml4.07 camlzip))
+         ("ocaml-csv" ,(package-with-ocaml4.07 ocaml-csv))
+         ("ocaml-sqlite3" ,ocaml4.07-sqlite3)
+         ("ocaml-xmlm" ,(package-with-ocaml4.07 ocaml-xmlm))
+         ("ocaml-mcl" ,(package-with-ocaml4.07 ocaml-mcl))
+         ("ocaml-gsl" ,ocaml4.07-gsl-1)))
       (native-inputs
        `(("cddlib-src" ,(package-source cddlib))
-         ("ocamlbuild" ,ocamlbuild)
+         ("ocamlbuild" ,(package-with-ocaml4.07 ocamlbuild))
          ("pkg-config" ,pkg-config)))
       (propagated-inputs
        `(("pplacer-scripts" ,pplacer-scripts)))
diff --git a/gnu/packages/check.scm b/gnu/packages/check.scm
index e10e684d32..eb2e2d62e2 100644
--- a/gnu/packages/check.scm
+++ b/gnu/packages/check.scm
@@ -26,7 +26,7 @@
 ;;; Copyright © 2017 ng0 <ng0@n0.is>
 ;;; Copyright © 2015, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
-;;; Copyright © 2017, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2017, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
 ;;; Copyright © 2019 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2019 Chris Marusich <cmmarusich@gmail.com>
@@ -1441,8 +1441,6 @@ C/C++, R, and more, and uploads it to the @code{codecov.io} service.")
        #:modules ((guix build python-build-system)
                   (guix build utils)
                   (srfi srfi-1))
-       #:imported-modules (,@%python-build-system-modules
-                           (srfi srfi-1))
        #:phases
        (modify-phases %standard-phases
          (delete 'install)
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index ff2490bc31..58ceed06d0 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -423,14 +423,14 @@ such as copy/paste from an R session.")
 (define-public r-callr
   (package
     (name "r-callr")
-    (version "3.4.0")
+    (version "3.4.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "callr" version))
        (sha256
         (base32
-         "1hvxw2glizq8g0qnxakcxh8jc5scn0hp1x8i70fdpqwwbgx49slr"))))
+         "0nyba0knzd44zz2xmr7zd9qh3rny0q8msysxf49843d9rlyv6y70"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-r6" ,r-r6)
@@ -1293,14 +1293,14 @@ coordinates.")
 (define-public r-rgooglemaps
   (package
     (name "r-rgooglemaps")
-    (version "1.4.5.1")
+    (version "1.4.5.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "RgoogleMaps" version))
        (sha256
         (base32
-         "1lrbl0nax7rzk460mh6rq9hydahdi3ckxk4kxx3xij29jl3lmijh"))))
+         "1y2dinxmzx6mg6ynpk2q7f4k4rxjm66my185gafdcvpc4rl7svs7"))))
     (properties `((upstream-name . "RgoogleMaps")))
     (build-system r-build-system)
     (propagated-inputs `(("r-png" ,r-png)))
@@ -2034,14 +2034,14 @@ statistical functions and other utilities to ease their usage.")
 (define-public r-prettyunits
   (package
     (name "r-prettyunits")
-    (version "1.1.0")
+    (version "1.1.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "prettyunits" version))
        (sha256
         (base32
-         "0453vvslpkj1ysyv0cy9hw98q5wlnj7bvvz7vzl5ld8ij82lwy5c"))))
+         "1ibmzgknw5896q2i6r59jz2izblxwgb29ivvjzx50pkd1jl9l6cs"))))
     (build-system r-build-system)
     (home-page "https://github.com/gaborcsardi/prettyunits")
     (synopsis "Pretty, human readable formatting of quantities")
@@ -2438,14 +2438,14 @@ topics for ecologists (ISBN 978-0-691-12522-0).")
 (define-public r-lpsolve
   (package
     (name "r-lpsolve")
-    (version "5.6.13.3")
+    (version "5.6.15")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "lpSolve" version))
        (sha256
         (base32
-         "1xazby8amb47vw5n12k13awv7x3bjci3q8vdd3vk1ms0ii16ahg6"))))
+         "1fpkyjyqykwa1dxnhiky01pm09syxg169lm7hpy39bdbg10vw9s6"))))
     (properties `((upstream-name . "lpSolve")))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/lpSolve")
@@ -3065,14 +3065,14 @@ by base R methods related to model fitting.")
 (define-public r-broom
   (package
     (name "r-broom")
-    (version "0.5.3")
+    (version "0.5.4")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "broom" version))
        (sha256
         (base32
-         "177m249dxbf9pf249610qrl58v025ws41ipfihy66751pwsv2n8d"))))
+         "1w35v1qrg8d0bm7a4gsdqkmrl9nmymsvmamy48vc046a1axzgzq1"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-backports" ,r-backports)
@@ -3563,14 +3563,14 @@ training models for classification or ranking.")
 (define-public r-xts
   (package
     (name "r-xts")
-    (version "0.11-2")
+    (version "0.12-0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "xts" version))
        (sha256
         (base32
-         "1f0kxrvn13py3hk2gh2m56cqm39x3bqp1i350r5viddacrm2yxqj"))))
+         "0q4cc8ynp7ndmgll1jj3lxyl6wmgg89ad3wq09kjc2ngszdfc4fz"))))
     (build-system r-build-system)
     (propagated-inputs `(("r-zoo" ,r-zoo)))
     (home-page "https://github.com/joshuaulrich/xts")
@@ -3887,14 +3887,14 @@ timeout.  It can also poll several processes at once.")
 (define-public r-tsp
   (package
     (name "r-tsp")
-    (version "1.1-7")
+    (version "1.1-8")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "TSP" version))
        (sha256
         (base32
-         "0rxxhvqi55869dg2p82hzg5kvgcqf9h60cjcg00k3pv9aw4x07kb"))))
+         "0g44f2a4m7rfx6y51cdbr6vcmmpbwgyzpvfjksq3lb7gcpbr7xrx"))))
     (properties `((upstream-name . "TSP")))
     (build-system r-build-system)
     (propagated-inputs `(("r-foreach" ,r-foreach)))
@@ -4067,22 +4067,20 @@ to variables on the left-hand side of the assignment.")
 (define-public r-vctrs
   (package
     (name "r-vctrs")
-    (version "0.2.1")
+    (version "0.2.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "vctrs" version))
        (sha256
         (base32
-         "0rlwjfvvhv3s5mj4lqhwlqwddpizyp46i1qbcvw0mzb5q8b0nkz0"))))
+         "008xjmlj5a5vm303wxac7bliamqwaj7mcj0jv6n9ibc8p8h93aqd"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-backports" ,r-backports)
-       ("r-digest" ,r-digest)
+     `(("r-digest" ,r-digest)
        ("r-ellipsis" ,r-ellipsis)
        ("r-glue" ,r-glue)
-       ("r-rlang" ,r-rlang)
-       ("r-zeallot" ,r-zeallot)))
+       ("r-rlang" ,r-rlang)))
     (home-page "https://github.com/r-lib/vctrs")
     (synopsis "Vector helpers")
     (description
@@ -4322,14 +4320,14 @@ rules with R.")
 (define-public r-leaps
   (package
     (name "r-leaps")
-    (version "3.0")
+    (version "3.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "leaps" version))
        (sha256
         (base32
-         "11gjmn1azrjw5xlvdb4gknj9985kck9x8zb9np1rnk2smp6pka2m"))))
+         "1dn3yl1p03n0iynd1vsdkrr0fhmvgrmfkv37y7n371765h83lz1x"))))
     (build-system r-build-system)
     (native-inputs `(("gfortran" ,gfortran)))
     (home-page "https://cran.r-project.org/web/packages/leaps/")
@@ -5940,14 +5938,14 @@ clustering.")
 (define-public r-factominer
   (package
     (name "r-factominer")
-    (version "2.0")
+    (version "2.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "FactoMineR" version))
        (sha256
         (base32
-         "0qiw60ypf3bf5xsqz2b9l82i4jvprjm8lzpp12lhl8d9j5s8m0j8"))))
+         "1b2jsv8vlaynknd7nlra6fdmr56n7678q5s28rqmagbadiqwvj4h"))))
     (properties `((upstream-name . "FactoMineR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -6409,22 +6407,18 @@ information are missing.")
 (define-public r-sjlabelled
   (package
     (name "r-sjlabelled")
-    (version "1.1.1")
+    (version "1.1.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "sjlabelled" version))
        (sha256
         (base32
-         "0c9wy0gsr2sbkrv2638xbi7qm0gl6jyr6sfricavhkm7l4hljjkz"))))
+         "1vnx067mxnvz4jzhmpiarda8ln6habzj02qikvkix5piiy85sqcw"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-haven" ,r-haven)
-       ("r-insight" ,r-insight)
-       ("r-magrittr" ,r-magrittr)
-       ("r-purrr" ,r-purrr)
-       ("r-rlang" ,r-rlang)
-       ("r-tidyselect" ,r-tidyselect)))
+       ("r-insight" ,r-insight)))
     (home-page "https://github.com/strengejacke/sjlabelled")
     (synopsis "Labelled data utility functions")
     (description
@@ -7808,14 +7802,14 @@ multiple-imputation datasets.")
 (define-public r-magick
   (package
     (name "r-magick")
-    (version "2.2")
+    (version "2.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "magick" version))
        (sha256
         (base32
-         "1xh5mhaks3wk1iwqs9d3lnbfv121lc1yz5fqdzk5il9ppr831l85"))))
+         "182b4wahkq9q0scn99mql4vm9fp92nja0r5yizc4x9rjl492ahd8"))))
     (build-system r-build-system)
     (inputs
      `(("imagemagick" ,imagemagick)
@@ -7841,14 +7835,14 @@ console, resulting in an interactive editing environment.")
 (define-public r-survey
   (package
     (name "r-survey")
-    (version "3.36")
+    (version "3.37")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "survey" version))
        (sha256
         (base32
-         "0xclsy4ram4k48vzh5m5bpmknnpwxnss85v73s4czsjj5ffjxwwh"))))
+         "1f31dvh48gzzan13pdrwh84ls35x9116095i7mdrcbrhz809r8dy"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-lattice" ,r-lattice)
@@ -8407,18 +8401,19 @@ detection, parallelism through BLAS and parallel user templates.")
 (define-public r-sjstats
   (package
     (name "r-sjstats")
-    (version "0.17.7")
+    (version "0.17.8")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "sjstats" version))
        (sha256
-        (base32 "029rl05p88bp01favz300m980r1khcx2a2kn88yqbnbgkjjgqqc6"))))
+        (base32 "0gagqbcmimlvxhpjkmd3s17mbrz5n937qksca1hvm6kj4rk37hzb"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-bayestestr" ,r-bayestestr)
        ("r-broom" ,r-broom)
        ("r-dplyr" ,r-dplyr)
+       ("r-effectsize" ,r-effectsize)
        ("r-emmeans" ,r-emmeans)
        ("r-insight" ,r-insight)
        ("r-lme4" ,r-lme4)
@@ -8481,14 +8476,14 @@ differentiation.")
 (define-public r-bayestestr
   (package
     (name "r-bayestestr")
-    (version "0.4.0")
+    (version "0.5.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "bayestestR" version))
        (sha256
         (base32
-         "1d3f50rzjzgzclwd6j887dssyhv7hdq7pik9nnlr3w775v3f69zc"))))
+         "01kqvky1ndd1q64rzmqh5yfzz36ci8yhy4w16gjnw4c257ikhvd8"))))
     (properties `((upstream-name . "bayestestR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -8506,14 +8501,14 @@ ROPE percentage and pd).")
 (define-public r-performance
   (package
     (name "r-performance")
-    (version "0.4.2")
+    (version "0.4.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "performance" version))
        (sha256
         (base32
-         "1pcjmqqm178dvdcpzkv5p4sj7glsppcny7znljb2nqkxh539a59p"))))
+         "1164585ywbnrcy7an57kifh2gdb6g08z9pxw75ywqdcfyd51i3dz"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-bayestestr" ,r-bayestestr)
@@ -8564,14 +8559,14 @@ results using @code{ggplot2}.")
 (define-public r-effectsize
   (package
     (name "r-effectsize")
-    (version "0.0.1")
+    (version "0.1.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "effectsize" version))
        (sha256
         (base32
-         "07vgmxdl75798hgdh90zysafjh97rmmj2wjjyr6xff4fbhi8rlkb"))))
+         "0dd7nbkg8kmash9zh2gg08m7hbpsqwpkvkdhinfqkbg5d0jinhq8"))))
     (properties `((upstream-name . "effectsize")))
     (build-system r-build-system)
     (propagated-inputs
@@ -8589,13 +8584,13 @@ conversion of indices such as Cohen's d, r, odds, etc.")
 (define-public r-sjplot
   (package
     (name "r-sjplot")
-    (version "2.8.1")
+    (version "2.8.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "sjPlot" version))
        (sha256
-        (base32 "0rmfc2pq80w0kxh6icljhqm31q580s0czvllsfxk6crmpyfgxkp7"))))
+        (base32 "16721a5006q0gv45zjcwnkykxhjkzpq5n35vhik0g0ixgm3a2vci"))))
     (properties `((upstream-name . "sjPlot")))
     (build-system r-build-system)
     (propagated-inputs
@@ -8605,17 +8600,11 @@ conversion of indices such as Cohen's d, r, odds, etc.")
        ("r-forcats" ,r-forcats)
        ("r-ggeffects" ,r-ggeffects)
        ("r-ggplot2" ,r-ggplot2)
-       ("r-ggrepel" ,r-ggrepel)
-       ("r-glmmtmb" ,r-glmmtmb)
        ("r-insight" ,r-insight)
        ("r-knitr" ,r-knitr)
-       ("r-lme4" ,r-lme4)
-       ("r-magrittr" ,r-magrittr)
        ("r-mass" ,r-mass)
-       ("r-modelr" ,r-modelr)
        ("r-parameters" ,r-parameters)
        ("r-performance" ,r-performance)
-       ("r-psych" ,r-psych)
        ("r-purrr" ,r-purrr)
        ("r-rlang" ,r-rlang)
        ("r-scales" ,r-scales)
@@ -8660,17 +8649,18 @@ back to file after modifications.")
 (define-public r-gh
   (package
     (name "r-gh")
-    (version "1.0.1")
+    (version "1.1.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "gh" version))
        (sha256
         (base32
-         "1llinfajb0g7006jd2w1hpskxpmkjhnqarcjb71r1qvsccb2ph7k"))))
+         "1bc9bn1078s664hc806dh0y1ncxif77q479rfmxfir9z7hwaz7yy"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-httr" ,r-httr)
+     `(("r-cli" ,r-cli)
+       ("r-httr" ,r-httr)
        ("r-ini" ,r-ini)
        ("r-jsonlite" ,r-jsonlite)))
     (home-page "https://github.com/r-lib/gh#readme")
@@ -9087,14 +9077,14 @@ analysing multivariate abundance data in community ecology.")
 (define-public r-afex
   (package
     (name "r-afex")
-    (version "0.25-1")
+    (version "0.26-0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "afex" version))
        (sha256
         (base32
-         "12n020y7rjm7402940gkqxa5j901p093f381i23p66fa3fyrshkf"))))
+         "0h3p1svgk1ap3lj08fi8nzdb3710h99bv150krf1x8wci1a0r1if"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-car" ,r-car)
@@ -10663,14 +10653,14 @@ preparing, executing, and processing HTTP requests.")
 (define-public r-gmp
   (package
     (name "r-gmp")
-    (version "0.5-13.5")
+    (version "0.5-13.6")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "gmp" version))
        (sha256
         (base32
-         "042mzsl6z6s61fy5m21yf9q83l08vnyqljn4iax7kqyiycpsp0gn"))))
+         "0j2sz2nw41y9306rl1b8hbn0spz7453z5iawcq0bvslyrhc1d9ir"))))
     (build-system r-build-system)
     (arguments
      '(#:phases
@@ -10690,20 +10680,23 @@ limitations\" using the GNU Multiple Precision library.")
 (define-public r-rmpfr
   (package
     (name "r-rmpfr")
-    (version "0.7-2")
+    (version "0.8-1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "Rmpfr" version))
        (sha256
         (base32
-         "1zq3as34r27v2yc729731997wdhxb6cs5ilmak4nmsljabnac7gc"))))
+         "09kw7hyca8xc09r2d88qj81cclar8acaq5q9q5rw9f49iffda0rr"))))
     (properties `((upstream-name . "Rmpfr")))
     (build-system r-build-system)
     (inputs
-     `(("mpfr" ,mpfr)))
+     `(("mpfr" ,mpfr)
+       ("gmp" ,gmp)))
     (propagated-inputs
      `(("r-gmp" ,r-gmp)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
     (home-page "http://rmpfr.r-forge.r-project.org/")
     (synopsis "R bindings to the MPFR library")
     (description
@@ -11656,14 +11649,14 @@ them in distributed compute environments.")
 (define-public r-future
   (package
     (name "r-future")
-    (version "1.15.1")
+    (version "1.16.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "future" version))
        (sha256
         (base32
-         "101hi8warqa0py9l6c5p98f7i9xjhx01w655z6a35jx1dhspykzd"))))
+         "1xaqh0b2knf5bp23mc0kriq0iqhqna31q3b7d960piqjhzrb03dm"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-digest" ,r-digest)
@@ -11795,20 +11788,19 @@ heuristics.")
 (define-public r-dorng
   (package
     (name "r-dorng")
-    (version "1.7.1")
+    (version "1.8.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "doRNG" version))
        (sha256
         (base32
-         "1sb75aqkliprglfxc4x4wds6alqgzhvl2n812g1d32a88ra3slr7"))))
+         "1jff27zzrvd1fd61x2m9468h8xn3s1c9f6wibviy5zdhj5dx9s9k"))))
     (properties `((upstream-name . "doRNG")))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-foreach" ,r-foreach)
        ("r-iterators" ,r-iterators)
-       ("r-pkgmaker" ,r-pkgmaker)
        ("r-rngtools" ,r-rngtools)))
     (home-page "https://renozao.github.io/doRNG/")
     (synopsis "Generic reproducible parallel backend for foreach loops")
@@ -12029,14 +12021,14 @@ numbers (e.g. concentrations).")
 (define-public r-cobs
   (package
     (name "r-cobs")
-    (version "1.3-3")
+    (version "1.3-4")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "cobs" version))
        (sha256
         (base32
-         "1pqvz7czcchri4x79g78hbwyagb3bqzdqb047zkbdinyz067c7kb"))))
+         "0hiw5smk6kgk0gb9840kcqkhkybl7n30s77xhjc395x09izbgix1"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-quantreg" ,r-quantreg)
@@ -13215,14 +13207,14 @@ spanning tree.")
 (define-public r-adegenet
   (package
     (name "r-adegenet")
-    (version "2.1.1")
+    (version "2.1.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "adegenet" version))
        (sha256
         (base32
-         "0ynfblp0hbd3dp3k86fn1wyhqr28lk6hs2bg4q7gyf0sfdfzwhrh"))))
+         "01fgrgbiddz2q4l3mx637hhwbs7r0c43yw7vpwl8p8pwbm3nykz0"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-ade4" ,r-ade4)
@@ -14063,14 +14055,14 @@ consists of @code{grid} grobs and viewports that can then be manipulated with
 (define-public r-farver
   (package
     (name "r-farver")
-    (version "2.0.1")
+    (version "2.0.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "farver" version))
        (sha256
         (base32
-         "0aq1hk561pz3s3lpay1adwsihha6mxp7zbj4n1m6307g34awlhhn"))))
+         "1k75v07dsfkjra2gsgxg9s55cw3b46b1nh960kqphq7cg7gr058f"))))
     (build-system r-build-system)
     (home-page "https://github.com/thomasp85/farver")
     (synopsis "Vectorized color conversion and comparison")
@@ -14444,14 +14436,14 @@ and Learning to Rank measures (LambdaMart).")
 (define-public r-threejs
   (package
     (name "r-threejs")
-    (version "0.3.1")
+    (version "0.3.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "threejs" version))
        (sha256
         (base32
-         "1s3rdlzy7man6177ycayg6xsh6k8y1r9rdj9yzn3b93j2rs0nxbi"))))
+         "1711h351nzxfkbbdwvfzyhciyvi9c6wx3jq1g97lzcqgnb45kivn"))))
     (build-system r-build-system)
     (arguments
      `(#:modules ((guix build utils)
@@ -14468,8 +14460,8 @@ and Learning to Rank measures (LambdaMart).")
                      (unzip2
                       `((,(assoc-ref inputs "js-jquery")
                          "htmlwidgets/lib/jquery/jquery.min.js")
-                        (,(assoc-ref inputs "js-threejs-85")
-                         "htmlwidgets/lib/threejs-85/three.min.js"))))
+                        (,(assoc-ref inputs "js-threejs-111")
+                         "htmlwidgets/lib/threejs-111/three.min.js"))))
                  (lambda (sources targets)
                    (for-each (lambda (source target)
                                (format #t "Processing ~a --> ~a~%"
@@ -14491,17 +14483,17 @@ and Learning to Rank measures (LambdaMart).")
        ("js-jquery"
         ,(origin
            (method url-fetch)
-           (uri "https://code.jquery.com/jquery-3.3.1.js")
+           (uri "https://code.jquery.com/jquery-1.12.4.js")
            (sha256
             (base32
-             "1b8zxrp6xwzpw25apn8j4qws0f6sr7qr7h2va5h1mjyfqvn29anq"))))
-       ("js-threejs-85"
+             "0x9mrc1668icvhpwzvgafm8xm11x9lfai9nwr66aw6pjnpwkc3s3"))))
+       ("js-threejs-111"
         ,(origin
            (method url-fetch)
-           (uri "https://raw.githubusercontent.com/mrdoob/three.js/r85/build/three.js")
+           (uri "https://raw.githubusercontent.com/mrdoob/three.js/r111/build/three.js")
            (sha256
             (base32
-             "17khh3dmijdjw4qb9qih1rqhxgrmm3pc6w8lzdx6rf6a3mrc9xnl"))))))
+             "1cxdkw3plmlw1xvhbx5dm39gqczgzxip2dm887v6whhsxqxl9cky"))))))
     (home-page "https://bwlewis.github.io/rthreejs")
     (synopsis "Interactive 3D scatter plots, networks and globes")
     (description
@@ -15462,14 +15454,14 @@ path of values for the regularization parameter.")
 (define-public r-rhpcblasctl
   (package
     (name "r-rhpcblasctl")
-    (version "0.18-205")
+    (version "0.20-17")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "RhpcBLASctl" version))
        (sha256
         (base32
-         "1ls2286fvrp1g7p8v4l6axznychh3qndranfpzqz806cm9ml1cdp"))))
+         "0iwc06blr5sx7rylwczi2jrha8sk8qs0jklflwpidl0zj1jxdggp"))))
     (properties `((upstream-name . "RhpcBLASctl")))
     (build-system r-build-system)
     (home-page "http://prs.ism.ac.jp/~nakama/Rhpc/")
@@ -15530,14 +15522,14 @@ computed using the L1 (Manhattan, taxicab) metric.")
 (define-public r-leiden
   (package
     (name "r-leiden")
-    (version "0.3.1")
+    (version "0.3.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "leiden" version))
        (sha256
         (base32
-         "19gq27zin4gf4sh7h24gyq3f8jjir20n2l36a7pk1pbzcr4ixyhp"))))
+         "0kf6fxqf5l5vilm9g7vspc18daw84cwhpafs5szb1skwd6vrfdzw"))))
     (properties `((upstream-name . "leiden")))
     (build-system r-build-system)
     (propagated-inputs
@@ -15877,14 +15869,14 @@ in pipelines.")
 (define-public r-parameters
   (package
     (name "r-parameters")
-    (version "0.4.0")
+    (version "0.4.1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "parameters" version))
        (sha256
         (base32
-         "0z1hdxgippchij28h8xbbz6l29kkyakwxxj5vxnpic40cpkqqdd6"))))
+         "0xkdn1079sr6kgyhc1zmn9imca4bghnxs3f91h0z7vkzjj73qdbi"))))
     (properties `((upstream-name . "parameters")))
     (build-system r-build-system)
     (propagated-inputs
@@ -16124,14 +16116,14 @@ as a boxplot function.")
 (define-public r-bio3d
   (package
     (name "r-bio3d")
-    (version "2.4-0")
+    (version "2.4-1")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "bio3d" version))
        (sha256
         (base32
-         "0ikpk1ppdp50m9kd289z616i382j9i7ji1zchyd4xqfyk8lnxf4s"))))
+         "07rw6c2d95gb5myxh31727j0jrchd0xisa3x89jjmf4zzs3vv7v7"))))
     (properties `((upstream-name . "bio3d")))
     (build-system r-build-system)
     (inputs `(("zlib" ,zlib)))
@@ -16967,14 +16959,14 @@ facilitates insertion into pipelines, and content inspection.")
 (define-public r-rngwell
   (package
     (name "r-rngwell")
-    (version "0.10-5")
+    (version "0.10-6")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "rngWELL" version))
        (sha256
         (base32
-         "0b4ys525gksgqwqx9id4bdgyi9mwj6n3r87xdzf4fc9hp3cc16jb"))))
+         "0pjjcs9pqj7mf0mhb2cwd0aanqpwnm65bm86hk6mi2vw8rgnj2vv"))))
     (properties `((upstream-name . "rngWELL")))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/rngWELL/")
@@ -18766,14 +18758,14 @@ these algorithms also allow to detect anomalies (outliers).")
 (define-public r-idpmisc
   (package
     (name "r-idpmisc")
-    (version "1.1.19")
+    (version "1.1.20")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "IDPmisc" version))
        (sha256
         (base32
-         "13qcvfm703frs367paddz1wq9k3p17f9p5347m56bhky5hjkaphd"))))
+         "0zy6mxqa8arq0vvhsdcifzm3085c23rnwa1n36fhircph1xwvfdw"))))
     (properties `((upstream-name . "IDPmisc")))
     (build-system r-build-system)
     (propagated-inputs
@@ -18944,14 +18936,14 @@ problems (food web problems, linear programming problems).")
 (define-public r-shinycssloaders
   (package
     (name "r-shinycssloaders")
-    (version "0.2.0")
+    (version "0.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "shinycssloaders" version))
        (sha256
         (base32
-         "1bpzsm7m7c366sjl1qndp4m5dg2vlm68rjgdy9n1ija9xbp0r2g4"))))
+         "1gzq1lhcnhqd145ys3ixf0l13l560fiqr2sc3m2nrijwxlgcw54d"))))
     (properties
      `((upstream-name . "shinycssloaders")))
     (build-system r-build-system)
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 8155bd7a94..a5f224f99e 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -4408,10 +4408,12 @@ the regex engine it uses pluggable.")
          "1wjc3gsan20gapga8nji6jcrmwn9n85q5zf2yfq6g50c7abkc2ql"))))
     (build-system cargo-build-system)
     (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
+     `(#:cargo-inputs
        (("rust-grep-matcher" ,rust-grep-matcher-0.1)
         ("rust-pcre2" ,rust-pcre2-0.2))))
+    (native-inputs
+     `(("pcre2" ,pcre2)
+       ("pkg-config" ,pkg-config)))
     (home-page
      "https://github.com/BurntSushi/ripgrep")
     (synopsis "Use PCRE2 with the grep crate")
@@ -5328,10 +5330,13 @@ wasm-bindgen crate.")
       (origin
         (method url-fetch)
         (uri (crate-uri "jemalloc-sys" version))
-        (file-name (string-append name "-" version ".crate"))
+        (file-name (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "0ify9vlql01qhfxlj7d4p9jvcp90mj2h69nkbq7slccvbhzryfqd"))))
+          "0ify9vlql01qhfxlj7d4p9jvcp90mj2h69nkbq7slccvbhzryfqd"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin (delete-file-recursively "jemalloc") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
@@ -5344,11 +5349,6 @@ wasm-bindgen crate.")
          (add-after 'configure 'override-jemalloc
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((jemalloc (assoc-ref inputs "jemalloc")))
-               (delete-file-recursively "jemalloc")
-               (delete-file-recursively
-                 (string-append "guix-vendor/rust-jemalloc-sys-"
-                                ,(package-version rust-jemalloc-sys-0.3)
-                                ".crate/jemalloc"))
                (setenv "JEMALLOC_OVERRIDE"
                        (string-append jemalloc "/lib/libjemalloc_pic.a")))
              #t)))))
@@ -5603,10 +5603,13 @@ values of all the exported APIs match the platform that libc is compiled for.")
       (origin
         (method url-fetch)
         (uri (crate-uri "libgit2-sys" version))
-        (file-name (string-append name "-" version ".crate"))
+        (file-name (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "0l9fvki7qxsl97vgzqwlv75nl213a5vxw7b1jaik97ala356pv6r"))))
+          "0l9fvki7qxsl97vgzqwlv75nl213a5vxw7b1jaik97ala356pv6r"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin (delete-file-recursively "libgit2") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
@@ -5623,21 +5626,6 @@ values of all the exported APIs match the platform that libc is compiled for.")
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((openssl (assoc-ref inputs "openssl")))
                (setenv "OPENSSL_DIR" openssl))
-             (delete-file-recursively "libgit2")
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libgit2-sys-"
-                              ,(package-version rust-libgit2-sys-0.10)
-                              ".crate/libgit2"))
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libz-sys-"
-                              ,(package-version rust-libz-sys-1.0)
-                              ".crate/src/zlib"))
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libssh2-sys-"
-                              ,(package-version rust-libssh2-sys-0.2)
-                              ".crate/libssh2"))
-             (setenv "LIBGIT2_SYS_USE_PKG_CONFIG" "1")
-             (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
              #t)))))
     (native-inputs
      `(("libgit2" ,libgit2)
@@ -5720,10 +5708,13 @@ functions and static variables these libraries contain.")
       (origin
         (method url-fetch)
         (uri (crate-uri "libssh2-sys" version))
-        (file-name (string-append name "-" version ".crate"))
+        (file-name (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "042gsgbvxgm5by4mk906j3zm4qdvzcfhjxrb55is1lrr6f0nxain"))))
+          "042gsgbvxgm5by4mk906j3zm4qdvzcfhjxrb55is1lrr6f0nxain"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin (delete-file-recursively "libssh2") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:skip-build? #t ; it wants rust-openssl-src
@@ -5741,16 +5732,6 @@ functions and static variables these libraries contain.")
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((openssl (assoc-ref inputs "openssl")))
                (setenv "OPENSSL_DIR" openssl))
-             (delete-file-recursively "libssh2")
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libssh2-sys-"
-                              ,(package-version rust-libssh2-sys-0.2)
-                              ".crate/libssh2"))
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libz-sys-"
-                              ,(package-version rust-libz-sys-1.0)
-                              ".crate/src/zlib"))
-             (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
              #t)))))
     (native-inputs
      `(("libssh2" ,libssh2)
@@ -5903,26 +5884,19 @@ functions and static variables these libraries contain.")
       (origin
         (method url-fetch)
         (uri (crate-uri "lzma-sys" version))
-        (file-name (string-append name "-" version ".crate"))
+        (file-name (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "14gyj256yh0wm77jbvmlc39v7lfn0navpfrja4alczarzlc8ir2k"))))
+          "14gyj256yh0wm77jbvmlc39v7lfn0navpfrja4alczarzlc8ir2k"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin (delete-file-recursively "xz-5.2") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-libc" ,rust-libc-0.2)
         ("rust-cc" ,rust-cc-1.0)
-        ("rust-pkg-config" ,rust-pkg-config-0.3))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'unbundle-xz
-           (lambda _
-             (delete-file-recursively "xz-5.2")
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-lzma-sys-"
-                              ,(package-version rust-lzma-sys-0.1)
-                              ".crate/xz-5.2"))
-             #t)))))
+        ("rust-pkg-config" ,rust-pkg-config-0.3))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("xz" ,xz)))
@@ -6591,10 +6565,13 @@ types as proposed in RFC 1158.")
       (origin
         (method url-fetch)
         (uri (crate-uri "libz-sys" version))
-        (file-name (string-append name "-" version ".crate"))
+        (file-name (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "1gjycyl2283525abks98bhxa4r259m617xfm5z52p3p3c8ry9d9f"))))
+          "1gjycyl2283525abks98bhxa4r259m617xfm5z52p3p3c8ry9d9f"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin (delete-file-recursively "src/zlib") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
@@ -6602,17 +6579,7 @@ types as proposed in RFC 1158.")
         ;; Build dependencies:
         ("rust-cc" ,rust-cc-1.0)
         ("rust-pkg-config" ,rust-pkg-config-0.3)
-        ("rust-vcpkg" ,rust-vcpkg-0.2))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'delete-vendored-zlib
-           (lambda _
-             (delete-file-recursively "src/zlib")
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-libz-sys-"
-                              ,(package-version rust-libz-sys-1.0)
-                              ".crate/src/zlib"))
-             #t)))))
+        ("rust-vcpkg" ,rust-vcpkg-0.2))))
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("zlib" ,zlib)))
@@ -7522,12 +7489,14 @@ deserialization, and interpreter in Rust.")
          "103i66a998g1fjrqf9sdyvi8qi83hwglz3pjdcq9n2r207hsagb0"))))
     (build-system cargo-build-system)
     (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
+     `(#:cargo-inputs
        (("rust-libc" ,rust-libc-0.2)
         ("rust-log" ,rust-log-0.4)
         ("rust-pcre2-sys" ,rust-pcre2-sys-0.2)
         ("rust-thread-local" ,rust-thread-local-0.3))))
+    (native-inputs
+     `(("pcre2" ,pcre2)
+       ("pkg-config" ,pkg-config)))
     (home-page "https://github.com/BurntSushi/rust-pcre2")
     (synopsis "High level wrapper library for PCRE2")
     (description
@@ -7546,23 +7515,16 @@ deserialization, and interpreter in Rust.")
         (string-append name "-" version ".tar.gz"))
        (sha256
         (base32
-         "0nwdvc43dkb89qmm5q8gw1zyll0wsfqw7kczpn23mljra3874v47"))))
+         "0nwdvc43dkb89qmm5q8gw1zyll0wsfqw7kczpn23mljra3874v47"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin (delete-file-recursively "pcre2") #t))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
        (("rust-libc" ,rust-libc-0.2)
         ("rust-pkg-config" ,rust-pkg-config-0.3)
-        ("rust-cc" ,rust-cc-1.0))
-       #:phases
-       (modify-phases %standard-phases
-         (add-after 'configure 'unbundle-sources
-           (lambda _
-             (delete-file-recursively "pcre2")
-             (delete-file-recursively
-               (string-append "guix-vendor/rust-pcre2-sys-"
-                              ,(package-version rust-pcre2-sys-0.2)
-                              ".tar.gz/pcre2"))
-             #t)))))
+        ("rust-cc" ,rust-cc-1.0))))
     (native-inputs
      `(("pcre2" ,pcre2)
        ("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index ecb8678b02..4f8d7582c7 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -4,7 +4,7 @@
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2018, 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
+;;; Copyright © 2018, 2019, 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -485,6 +485,108 @@ letters of the alphabet, spelling, eye-hand coordination, etc.")
     (home-page "http://www.schoolsplay.org")
     (license license:gpl3+)))
 
+(define-public omnitux
+  (package
+    (name "omnitux")
+    (version "1.2.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://sourceforge/omnitux/omnitux/"
+                           "v" version "/omnitux-" version ".tar.bz2"))
+       (sha256
+        (base32 "1wmmmbzmxd0blhn00d4g91xwavnab143a31ca3i8hrqgzh6qz9w6"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           ;; Remove pre-compiled .pyc files from source.
+           (for-each delete-file (find-files "bin" "\\.pyc$"))
+           #t))))
+    (build-system python-build-system)
+    (inputs
+     `(("python2-pygame" ,python2-pygame)
+       ("python2-pygtk" ,python2-pygtk)))
+    (arguments
+     `(#:tests? #f                      ;no test
+       #:python ,python-2
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'build)                ;no setup.py
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (share (string-append out "/share"))
+                    (data (string-append share "/omnitux")))
+               ;; Install documentation.
+               (let ((doc (string-append share "/doc/" ,name "-" ,version)))
+                 (for-each (lambda (f) (install-file f doc))
+                           '("LICENSE.txt" "README.txt")))
+               ;; Install data.
+               (install-file "omnitux.sh" data)
+               (for-each (lambda (d)
+                           (copy-recursively d (string-append data "/" d)))
+                         '("bin" "data"))
+               ;; Install the launcher.
+               (let* ((bin (string-append out "/bin"))
+                      (script (string-append bin "/omnitux"))
+                      (bash (string-append (assoc-ref %build-inputs "bash")
+                                           "/bin/bash"))
+                      (python (string-append (assoc-ref %build-inputs "python")
+                                             "/bin/python2")))
+                 (mkdir-p bin)
+                 (with-output-to-file script
+                   (lambda ()
+                     (format #t "#!~a~%" bash)
+                     (format #t
+                             "cd ~a; ~a menu.py~%"
+                             (string-append data "/bin")
+                             python)))
+                 (chmod script #o755))
+               ;; Install icon and desktop file.
+               (let ((pixmaps (string-append share "/pixmaps")))
+                 (install-file "data/default/icons/Omnitux_logo.svg" pixmaps))
+               (let ((apps (string-append out "/share/applications")))
+                 (mkdir-p apps)
+                 (with-output-to-file (string-append apps "/omnitux.desktop")
+                   (lambda _
+                     (format #t
+                             "[Desktop Entry]~@
+                              Name=Omnitux~@
+                              GenericName=Omnitux
+                              Comment=An educational game based on multimedia elements.~@
+                              Comment[fr]=Un jeu ludo-éducatif basé sur des éléments multimédias.~@
+                              Exec=~a/bin/omnitux~@
+                              Type=Application~@
+                              Categories=Game;Education;~@
+                              Terminal=false~@
+                              Icon=Omnitux_logo.svg~@"
+                             out))))
+               #t))))))
+    (home-page "http://omnitux.sourceforge.net/")
+    (synopsis "Educational activities based on multimedia elements")
+    (description "The project aims to provide various educational
+activities around multimedia elements (images, sounds, texts).  Types
+of activities include:
+@itemize
+@item associations,
+@item items to place on a map or a schema,
+@item counting activities,
+@item puzzles,
+@item card faces to remember,
+@item find differences between two pictures,
+@item ...
+@end itemize
+
+Activities are available in English, French, German, Polish,
+Portuguese, Spanish and Italian.")
+    ;; Project's license is GPL3+, but multimedia elements are
+    ;; released under various licenses.
+    (license (list license:gpl3+
+                   license:gpl2+
+                   license:cc-by-sa2.0
+                   license:cc-by-sa3.0
+                   license:public-domain))))
+
 (define-public fet
   (package
     (name "fet")
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 9870964ec0..e834dfffb3 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -51,7 +51,7 @@
 ;;; Copyright © 2019 Baptiste Strazzulla <bstrazzull@hotmail.fr>
 ;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;; Copyright © 2019 Jens Mølgaard <jens@zete.tk>
-;;; Copyright © 2019 Amin Bandali <mab@gnu.org>
+;;; Copyright © 2019, 2020 Amin Bandali <mab@gnu.org>
 ;;; Copyright © 2019 Jelle Licht <jlicht@fsfe.org>
 ;;; Copyright © 2019 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
 ;;; Copyright © 2019 Stephen Webber <montokapro@gmail.com>
@@ -8053,14 +8053,13 @@ passive voice.")
     (name "emacs-org")
     ;; emacs-org-contrib inherits from this package.  Please update it as
     ;; well.
-    (version "9.3.1")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://elpa.gnu.org/packages/org-"
-                                  version ".tar"))
-              (sha256
-               (base32
-                "1n79h6ihhsaxxbnl9hw511aav0215m3pa51sa5fh3ddknjfplian"))))
+    (version "9.3.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://elpa.gnu.org/packages/org-" version ".tar"))
+       (sha256
+        (base32 "1275s3hzyka2wwxl6nc2sndnwyl7kbc1nnl0hrznxb3wpy2abfd6"))))
     (build-system emacs-build-system)
     (home-page "https://orgmode.org/")
     (synopsis "Outline-based notes management and organizer")
@@ -8074,14 +8073,14 @@ programming and reproducible research.")
   (package
     (inherit emacs-org)
     (name "emacs-org-contrib")
-    (version "20191226")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://orgmode.org/elpa/"
-                                  "org-plus-contrib-" version ".tar"))
-              (sha256
-               (base32
-                "08h6qiplvm7rvrb1pv2arwdlv6p31p0a6h0fk64kb79g6br8rk8i"))))
+    (version "20200126")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://orgmode.org/elpa/"
+                           "org-plus-contrib-" version ".tar"))
+       (sha256
+        (base32 "08yik0i8ya2x5j4vsnwxdcdlcxbiq58lvy30vcbdbf0hqrd40kjv"))))
     (arguments
      `(#:modules ((guix build emacs-build-system)
                   (guix build utils)
@@ -12357,7 +12356,7 @@ into sections while preserving the structure imposed by any timestamps.")
 (define-public emacs-org-make-toc
   (package
     (name "emacs-org-make-toc")
-    (version "0.3")
+    (version "0.4")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -12366,7 +12365,7 @@ into sections while preserving the structure imposed by any timestamps.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0syhj8q4pv33xgl5qa6x27yhwqvfhffw5xqp819hj4qs1ddlc7j5"))))
+                "0348iq3bc3rxs5bqdvskyly4agqxiapamqkfm0323620kxl70agw"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-org" ,emacs-org)
@@ -15378,56 +15377,54 @@ try completing.  See @code{fish-completion-fallback-on-bash-p}.")
     (license license:gpl3+)))
 
 (define-public emacs-gif-screencast
-  (let ((commit "248d1e158405e6cba2c65ecaed40e2c59b089cd8")
-        (revision "2"))
-    (package
-      (name "emacs-gif-screencast")
-      (version (git-version "1.0" revision commit))
-      (source
-       (origin
-         (method git-fetch)
-         (uri (git-reference
-               (url "https://gitlab.com/Ambrevar/emacs-gif-screencast.git")
-               (commit commit)))
-         (file-name (git-file-name name version))
-         (sha256
-          (base32
-           "19xqi5mgalnnhb4hw0fh7py2s2dllldx1xxbhwhknkdpifai8hl8"))))
-      (build-system emacs-build-system)
-      (inputs
-       `(("scrot" ,scrot)
-         ("imagemagick" ,imagemagick)
-         ("gifsicle" ,gifsicle)))
-      (arguments
-       `(#:phases
-         (modify-phases %standard-phases
-           (add-after 'unpack 'configure
-             (lambda* (#:key inputs outputs #:allow-other-keys)
-               (let ((scrot (assoc-ref inputs "scrot"))
-                     (imagemagick (assoc-ref inputs "imagemagick"))
-                     (gifsicle (assoc-ref inputs "gifsicle")))
-                 (make-file-writable "gif-screencast.el")
-                 ;; Specify the absolute file names of the various
-                 ;; programs so that everything works out-of-the-box.
-                 (emacs-substitute-variables
-                     "gif-screencast.el"
-                   ("gif-screencast-program"
-                    (string-append scrot "/bin/scrot"))
-                   ("gif-screencast-convert-program"
-                    (string-append imagemagick "/bin/convert"))
-                   ("gif-screencast-cropping-program"
-                    (string-append imagemagick "/bin/mogrify"))
-                   ("gif-screencast-optimize-program"
-                    (string-append gifsicle "/bin/gifsicle")))))))))
-      (home-page
-       "https://gitlab.com/Ambrevar/emacs-gif-screencast")
-      (synopsis "One-frame-per-action GIF recording")
-      (description
-       "Call @code{gif-screencast} to start a recording.
+  (package
+    (name "emacs-gif-screencast")
+    (version "1.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/Ambrevar/emacs-gif-screencast.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1g1by8lvf8c9vzm4wwsi5kp285kaj0ahsl54048ympin4pi0njw9"))))
+    (build-system emacs-build-system)
+    (inputs
+     `(("scrot" ,scrot)
+       ("imagemagick" ,imagemagick)
+       ("gifsicle" ,gifsicle)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'configure
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((scrot (assoc-ref inputs "scrot"))
+                   (imagemagick (assoc-ref inputs "imagemagick"))
+                   (gifsicle (assoc-ref inputs "gifsicle")))
+               (make-file-writable "gif-screencast.el")
+               ;; Specify the absolute file names of the various
+               ;; programs so that everything works out-of-the-box.
+               (emacs-substitute-variables
+                   "gif-screencast.el"
+                 ("gif-screencast-program"
+                  (string-append scrot "/bin/scrot"))
+                 ("gif-screencast-convert-program"
+                  (string-append imagemagick "/bin/convert"))
+                 ("gif-screencast-cropping-program"
+                  (string-append imagemagick "/bin/mogrify"))
+                 ("gif-screencast-optimize-program"
+                  (string-append gifsicle "/bin/gifsicle")))))))))
+    (home-page
+     "https://gitlab.com/Ambrevar/emacs-gif-screencast")
+    (synopsis "One-frame-per-action GIF recording")
+    (description
+     "Call @code{gif-screencast} to start a recording.
 A screenshot is taken for every user action.  Call
 @code{gif-screencast-stop} (<f9> by default) to finish recording and create
 the GIF result.")
-      (license license:gpl3+))))
+    (license license:gpl3+)))
 
 (define-public emacs-google-translate
   (package
@@ -20209,7 +20206,7 @@ Emacs that integrate with major modes like Org-mode.")
 (define-public emacs-modus-themes
   (package
     (name "emacs-modus-themes")
-    (version "0.3.0")
+    (version "0.4.0")
     (source
      (origin
        (method git-fetch)
@@ -20218,8 +20215,7 @@ Emacs that integrate with major modes like Org-mode.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "1xrrjhpdxi9bgx877gvq8xrc2ph5qp9y5j3ssdphy333x9km1px1"))))
+        (base32 "0c4y3y9mjf6x2b9087fk6nkxvgvm9f5l1p2vdwqny80vp4krsb8r"))))
     (build-system emacs-build-system)
     (home-page "https://gitlab.com/protesilaos/modus-themes")
     (synopsis "Emacs themes designed for colour-contrast accessibility")
@@ -21127,3 +21123,117 @@ pattern guessed from thing under current cursor position.
 mercury-mode provided by Emacs as a wrapper around prolog-mode.")
       (home-page "https://github.com/ahungry/metal-mercury-mode")
       (license license:gpl3+))))
+
+(define-public emacs-boxquote
+  ;; The following commit is 2.1 release with a switch to GPL3+ license.
+  (let ((commit "7e47e0e2853bc1215739b2e28f260e9eed93b2c5")
+        (revision "0"))
+    (package
+      (name "emacs-boxquote")
+      (version (git-version "2.1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/davep/boxquote.el.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1aqhg24gajvllbqxb0zxrnx6sddas37k2ldfinqyszd856sjhsg3"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/davep/boxquote.el")
+      (synopsis "Quote text with different kinds of boxes")
+      (description "@code{boxquote} provides a set of functions for using
+a text quoting style that partially boxes in the left hand side of an area of
+text, such a marking style might be used to show externally included text or
+example code.")
+      (license license:gpl3+))))
+
+(define-public emacs-company-ebdb
+  (package
+    (name "emacs-company-ebdb")
+    (version "1.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://elpa.gnu.org/packages/"
+                           "company-ebdb-" version ".el"))
+       (sha256
+        (base32 "146qpiigz12zp1823ggxfrx090g0mxs7gz1ba7sa0iq6ibgzwwm9"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-company" ,emacs-company)))
+    (home-page "https://elpa.gnu.org/packages/company-ebdb.html")
+    (synopsis "Company completion backend for EBDB in Message mode")
+    (description "@code{company-ebdb} provides Company mode integration for
+EBDB.  It is copied more or less intact from @code{company-bbdb}, originally
+by Jan Tatarik.")
+    (license license:gpl3+)))
+
+(define-public emacs-mwim
+  ;; Use the latest commit not in a release version as of yet, since it
+  ;; contains a bug fix for the cases where `comment-start-skip' is nil.
+  (let ((commit "b4f3edb4c0fb8f8b71cecbf8095c2c25a8ffbf85")
+        (revision "0"))
+    (package
+      (name "emacs-mwim")
+      (version (git-version "0.4" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/alezost/mwim.el.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "0l3k611gp9g2x2vfmh92wnhnda81dslpwwpb8mxmzk308man77ya"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/alezost/mwim.el")
+      (synopsis "Move to the beginning/end of line, code or comment")
+      (description "@code{mwim} provides several commands to switch between
+various line positions, like moving to the beginning/end of code, line, or
+comment.")
+      (license license:gpl3+))))
+
+(define-public emacs-delight
+  (package
+    (name "emacs-delight")
+    (version "1.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://elpa.gnu.org/packages/"
+                           "delight-" version ".el"))
+       (sha256
+        (base32 "0kzlvzwmn6zj0874086q2xw0pclyi7wlkq48zh2lkd2796xm8vw7"))))
+    (build-system emacs-build-system)
+    (home-page "https://elpa.gnu.org/packages/delight.html")
+    (synopsis "Dimmer switch for your mode-line lighter text")
+    (description "@code{delight} enables customizing or hiding the
+mode-line text (lighter) of major and minor modes.")
+    (license license:gpl3+)))
+
+(define-public emacs-unkillable-scratch
+  ;; Use the latest (unreleased) commit as of now, since it contains a handy
+  ;; `unkillable-scratch-do-not-reset-scratch-buffer' customization to not
+  ;; repopulate the scratch buffer with `initial-scratch-message'.
+  (let ((commit "b24c2a760529833f230c14cb02ff6e7ec92288ab")
+        (revision "0"))
+    (package
+      (name "emacs-unkillable-scratch")
+      (version (git-version "1.0.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/EricCrosson/unkillable-scratch.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "13wjbcxr3km4s96yhpavgs5acs5pvqv3ih1p84diqb3x3i6wd4pa"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/EricCrosson/unkillable-scratch")
+      (synopsis "Prevents the *scratch* buffer from being killed")
+      (description "@code{unkillable-scratch} helps prevent killing buffers
+matching a given regexp.")
+      (license license:gpl2+))))
diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 140a8087ec..23b5ad864f 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -1478,12 +1478,22 @@ functions.  The source code to MAME serves as this documentation.")
          #:phases
          (modify-phases %standard-phases
            (add-after 'unpack 'cd-subdir
-             (lambda _ (chdir "pcsxr")))
+             (lambda _ (chdir "pcsxr") #t))
            (add-before 'configure 'fix-cdio-lookup
              (lambda* (#:key inputs #:allow-other-keys)
                (substitute* "cmake/FindCdio.cmake"
                  (("/usr/include/cdio")
-                  (string-append (assoc-ref inputs "libcdio") "/include/cdio"))))))))
+                  (string-append (assoc-ref inputs "libcdio") "/include/cdio")))
+               #t))
+           (add-after 'install 'wrap-program
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (wrap-program (string-append (assoc-ref outputs "out")
+                                            "/bin/pcsxr")
+                 ;; For GtkFileChooserDialog.
+                 `("GSETTINGS_SCHEMA_DIR" =
+                   (,(string-append (assoc-ref inputs "gtk+")
+                                    "/share/glib-2.0/schemas"))))
+               #t)))))
       (native-inputs
        `(("pkg-config" ,pkg-config)
          ("intltool" ,intltool)
diff --git a/gnu/packages/file-systems.scm b/gnu/packages/file-systems.scm
index a3dc993055..d7a0d6dbac 100644
--- a/gnu/packages/file-systems.scm
+++ b/gnu/packages/file-systems.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Leo Famulari <leo@famulari.name>
@@ -37,6 +37,7 @@
   #:use-module (gnu packages bison)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages crypto)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages datastructures)
   #:use-module (gnu packages documentation)
@@ -52,8 +53,66 @@
   #:use-module (gnu packages readline)
   #:use-module (gnu packages sqlite)
   #:use-module (gnu packages tls)
+  #:use-module (gnu packages valgrind)
   #:use-module (gnu packages xml))
 
+(define-public bcachefs-tools
+  (let ((commit "ab2f1ec24f5307b0cf1e3c4ad19bf350d9f54d9f")
+        (revision "0"))
+    (package
+      (name "bcachefs-tools")
+      (version (git-version "0.1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://evilpiepirate.org/git/bcachefs-tools.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "10pafvaxg1lvwnqjv3a4rsi96bghbpcsgh3vhqilndi334k3b0hd"))))
+      (build-system gnu-build-system)
+      (arguments
+       `(#:make-flags
+         (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
+               "INITRAMFS_DIR=$(PREFIX)/share/initramfs-tools"
+               "CC=gcc"
+               "PYTEST=pytest")
+         #:phases
+         (modify-phases %standard-phases
+           (delete 'configure))         ; no configure script
+         #:tests? #f))                  ; XXX 6 valgrind tests fail
+      (native-inputs
+       `(("pkg-config" ,pkg-config)
+
+         ;; For tests.
+         ("python-pytest" ,python-pytest)
+         ("valgrind" ,valgrind)))
+      (inputs
+       `(("keyutils" ,keyutils)
+         ("libaio" ,libaio)
+         ("libscrypt" ,libscrypt)
+         ("libsodium" ,libsodium)
+         ("liburcu" ,liburcu)
+         ("util-linux" ,util-linux)     ; lib{blkid,uuid}
+         ("lz4" ,lz4)
+         ("zlib" ,zlib)
+         ("zstd:lib" ,zstd "lib")))
+      (home-page "https://bcachefs.org/")
+      (synopsis "Tools to create and manage bcachefs file systems")
+      (description
+       "The bcachefs-tools are command-line utilites for creating, checking,
+and otherwise managing bcachefs file systems.
+
+Bcachefs is a @acronym{CoW, copy-on-write} file system supporting native
+encryption, compression, snapshots, and (meta)data checksums.  It can use
+multiple block devices for replication and/or performance, similar to RAID.
+
+In addition, bcachefs provides all the functionality of bcache, a block-layer
+caching system, and lets you assign different roles to each device based on its
+performance and other characteristics.")
+      (license license:gpl2+))))
+
 (define-public httpfs2
   (package
     (name "httpfs2")
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index 13006f3509..ceec993d04 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -18,6 +18,7 @@
 ;;; Copyright © 2019, 2020 Leo Prikler <leo.prikler@student.tugraz.at>
 ;;; Copyright © 2019 Jethro Cao <jethrocao@gmail.com>
 ;;; Copyright © 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
+;;; Copyright © 2020 Timotej Lazar <timotej.lazar@araneo.si>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -77,6 +78,7 @@
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages music)
   #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages pcre)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages pulseaudio)
   #:use-module (gnu packages python)
@@ -723,7 +725,7 @@ package is the Nuklear bindings for LÖVE created by Kevin Harrison.")
 multimedia programming.  It handles common, low-level tasks such as creating
 windows, accepting user input, loading data, drawing images, playing sounds,
 etc.")
-    (home-page "http://liballeg.org")
+    (home-page "https://liballeg.org")
     (license license:giftware)))
 
 (define-public allegro
@@ -764,7 +766,7 @@ etc.")
 multimedia programming.  It handles common, low-level tasks such as creating
 windows, accepting user input, loading data, drawing images, playing sounds,
 etc.")
-    (home-page "http://liballeg.org")
+    (home-page "https://liballeg.org")
     (license license:bsd-3)))
 
 (define-public allegro-5.0
@@ -1503,7 +1505,7 @@ games.")
 (define-public godot
   (package
     (name "godot")
-    (version "3.0.6")
+    (version "3.1.2")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -1512,25 +1514,43 @@ games.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0g64h0x8dlv6aa9ggfcidk2mknkfl5li7z1phcav8aqp9srj8avf"))
-              (modules '((guix build utils)))
+                "12305wj2i4067jc50l8r0wmb7zjcna24fli8vb8kiaild0jrlip6"))
+              (modules '((guix build utils)
+                         (ice-9 ftw)
+                         (srfi srfi-1)))
               (snippet
                '(begin
-                  ;; Drop libraries that we take from Guix.  Note that some
-                  ;; of these may be modified; see "thirdparty/README.md".
+                  ;; Keep only those bundled files we have not (yet) replaced
+                  ;; with Guix versions. Note that some of these may be
+                  ;; modified; see "thirdparty/README.md".
                   (with-directory-excursion "thirdparty"
-                    (for-each delete-file-recursively
-                              '("freetype"
-                                "libogg"
-                                "libpng"
-                                "libtheora"
-                                "libvorbis"
-                                "libvpx"
-                                "libwebp"
-                                "openssl"
-                                "opus"
-                                "zlib"))
-                    #t)))))
+                    (let* ((preserved-files
+                            '("README.md"
+                              "b2d_convexdecomp"
+                              "certs"
+                              "cvtt"
+                              "enet"
+                              "etc2comp"
+                              "fonts"
+                              "glad"
+                              "jpeg-compressor"
+                              "libsimplewebm"
+                              "libwebsockets"
+                              "miniupnpc"
+                              "minizip"
+                              "misc"
+                              "nanosvg"
+                              "pvrtccompressor"
+                              "recastnavigation"
+                              "squish"
+                              "thekla_atlas"
+                              "tinyexr"
+                              "xatlas")))
+                      (for-each delete-file-recursively
+                                (lset-difference string=?
+                                                 (scandir ".")
+                                                 (cons* "." ".." preserved-files)))))
+                  #t))))
     (build-system scons-build-system)
     (arguments
      `(#:scons ,scons-python2
@@ -1541,6 +1561,7 @@ games.")
                                '())
                            ;; Avoid using many of the bundled libs.
                            ;; Note: These options can be found in the SConstruct file.
+                           "builtin_bullet=no"
                            "builtin_freetype=no"
                            "builtin_glew=no"
                            "builtin_libmpdec=no"
@@ -1550,9 +1571,11 @@ games.")
                            "builtin_libvorbis=no"
                            "builtin_libvpx=no"
                            "builtin_libwebp=no"
-                           "builtin_openssl=no"
+                           "builtin_mbedtls=no"
                            "builtin_opus=no"
-                           "builtin_zlib=no")
+                           "builtin_pcre2=no"
+                           "builtin_zlib=no"
+                           "builtin_zstd=no")
        #:tests? #f ; There are no tests
        #:phases
        (modify-phases %standard-phases
@@ -1599,6 +1622,7 @@ games.")
                #t))))))
     (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs `(("alsa-lib" ,alsa-lib)
+              ("bullet" ,bullet)
               ("freetype" ,freetype)
               ("glew" ,glew)
               ("glu" ,glu)
@@ -1611,10 +1635,12 @@ games.")
               ("libxi" ,libxi)
               ("libxinerama" ,libxinerama)
               ("libxrandr" ,libxrandr)
+              ("mbedtls" ,mbedtls-apache)
               ("mesa" ,mesa)
-              ("openssl" ,openssl)
               ("opusfile" ,opusfile)
-              ("pulseaudio" ,pulseaudio)))
+              ("pcre2" ,pcre2)
+              ("pulseaudio" ,pulseaudio)
+              ("zstd" ,zstd "lib")))
     (home-page "https://godotengine.org/")
     (synopsis "Advanced 2D and 3D game engine")
     (description
@@ -1999,9 +2025,9 @@ a.k.a. XenoCollide) as described in Game Programming Gems 7.")
     (build-system cmake-build-system)
     (arguments
      ;; Tests fail on all systems but x86_64.
-     `(#:tests? ,(string=? "x86_64-linux"
-                           (or (%current-target-system)
-                               (%current-system)))
+     `(#:tests? ,(string-prefix? "x86_64-"
+                                 (or (%current-target-system)
+                                     (%current-system)))
        #:configure-flags '("-DODE_WITH_LIBCCD_SYSTEM=ON")
        #:phases
        (modify-phases %standard-phases
diff --git a/gnu/packages/hexedit.scm b/gnu/packages/hexedit.scm
index 9aea8e8700..e1a029167a 100644
--- a/gnu/packages/hexedit.scm
+++ b/gnu/packages/hexedit.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2016 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -24,6 +25,7 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages man)
   #:use-module (gnu packages ncurses)
   #:use-module (guix download)
   #:use-module (guix git-download)
@@ -43,12 +45,26 @@
                (base32
                 "1xsxa5mip892jkvz9jshj73y6c7j3mgp8y393ciihqlyf2nmfs67"))))
     (build-system gnu-build-system)
-    (arguments '(#:tests? #f))          ; no check target
+    (arguments
+     `(#:tests? #f                      ; no check target
+       #:phases
+       (modify-phases %standard-phases
+         ;; Make F1 open the man page even if man-db is not in the profile.
+         (add-after 'unpack 'patch-man-path
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (substitute* "interact.c"
+               (("\"man\"")
+                (string-append "\"" (assoc-ref inputs "man-db") "/bin/man\""))
+               (("\"hexedit\"")
+                (string-append "\"" (assoc-ref outputs "out")
+                               "/share/man/man1/hexedit.1.gz\"")))
+             #t)))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)))
     (inputs
-     `(("ncurses" ,ncurses)))
+     `(("man-db" ,man-db)
+       ("ncurses" ,ncurses)))
     (synopsis "View and edit files or devices in hexadecimal or ASCII")
     (description "hexedit shows a file both in ASCII and in hexadecimal.  The
 file can be a device as the file is read a piece at a time.  You can modify
@@ -80,3 +96,25 @@ low-level functionality of a debugger with the usability of an @dfn{Integrated
 Development Environment} (IDE).")
     (home-page "http://hte.sourceforge.net/")
     (license license:gpl2)))
+
+(define-public bvi
+  (package
+    (name "bvi")
+    (version "1.4.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://sourceforge/bvi/bvi/" version
+                    "/bvi-" version ".src.tar.gz"))
+              (sha256
+               (base32
+                "0a0yl0dcyff31k3dr4dpgqmlwygp8iaslnr5gmb6814ylxf2ad9h"))))
+    (build-system gnu-build-system)
+    (arguments '(#:tests? #f))          ; no check target
+    (inputs
+     `(("ncurses" ,ncurses)))
+    (synopsis "Binary file editor")
+    (description "@command{bvi} is a display-oriented editor for binary files,
+based on the @command{vi} text editor.")
+    (home-page "http://bvi.sourceforge.net/")
+    (license license:gpl3+)))
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 9195e09e2f..c7425a67f8 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -365,18 +365,18 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
                             (%upstream-linux-source version hash)
                             deblob-scripts-5.4)))
 
-(define-public linux-libre-4.19-version "4.19.98")
+(define-public linux-libre-4.19-version "4.19.99")
 (define-public linux-libre-4.19-pristine-source
   (let ((version linux-libre-4.19-version)
-        (hash (base32 "0dr9vnaaycq77r49mj001zvkxhdyxkgh27dbjsaxcq1dq8xv3zli")))
+        (hash (base32 "1axmspnqir2zz7lail95y5yaamxl86k39sd4im3c77dgjkwj3g4d")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.19)))
 
-(define-public linux-libre-4.14-version "4.14.167")
+(define-public linux-libre-4.14-version "4.14.168")
 (define-public linux-libre-4.14-pristine-source
   (let ((version linux-libre-4.14-version)
-        (hash (base32 "0hzyb5k6adhg4vkhix21kg7z6gdzyk1dnzylvbsz9yh2m73qzdrb")))
+        (hash (base32 "1ziixdg4jsr17kgfa9dpckczk0r2mc5jayqb2f6br19al79pfmyv")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.14)))
@@ -1788,7 +1788,7 @@ that the Ethernet protocol is much simpler than the IP protocol.")
 (define-public iproute
   (package
     (name "iproute2")
-    (version "5.3.0")
+    (version "5.5.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1796,7 +1796,7 @@ that the Ethernet protocol is much simpler than the IP protocol.")
                     version ".tar.xz"))
               (sha256
                (base32
-                "0gvv269wjn4279hxr5zzwsk2c5qgswr47za3hm1x4frsk52iw76b"))))
+                "0ywg70f98wgfai35jl47xzpjp45a6n7crja4vc8ql85cbi1l7ids"))))
     (build-system gnu-build-system)
     (arguments
      `( ;; There is a test suite, but it wants network namespaces and sudo.
@@ -5042,6 +5042,21 @@ monitoring tools for Linux.  These include @code{mpstat}, @code{iostat},
         (base32 "0zrjipd392bzjvxx0rjrb0cgi0ix1d83fwgw1mcy8kc4d16cgyjg"))
        (file-name (git-file-name name version))))
     (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-udev-rules-absolute-path-bins
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "90-backlight.rules"
+               (("/bin/chgrp") (which "chgrp"))
+               (("/bin/chmod") (which "chmod")))
+             #t))
+         (add-after 'install 'install-udev-rules
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (install-file
+                "90-backlight.rules" (string-append out "/lib/udev/rules.d"))
+               #t))))))
     (native-inputs
      `(("autoconf" ,autoconf)
        ("automake" ,automake)))
diff --git a/gnu/packages/lxqt.scm b/gnu/packages/lxqt.scm
index b23d2e17dc..12c92e52d1 100644
--- a/gnu/packages/lxqt.scm
+++ b/gnu/packages/lxqt.scm
@@ -1386,5 +1386,5 @@ desktop.")
        ("qterminal" ,qterminal)))
     (synopsis "The Lightweight Qt Desktop Environment")
     (description "LXQt is a lightweight Qt desktop environment.")
-    (home-page "https://lxde.org")
+    (home-page "https://lxqt.org/")
     (license license:gpl2+)))
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index c503b631dc..aa37c4e38c 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -2367,14 +2367,14 @@ e-mails with other systems speaking the SMTP protocol.")
 (define-public opensmtpd-next
   (package
     (name "opensmtpd-next")
-    (version "6.6.1p1")
+    (version "6.6.2p1")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://www.opensmtpd.org/archives/"
                            "opensmtpd-" version ".tar.gz"))
        (sha256
-        (base32 "1ngil8j13m2rq07g94j4yjr6zmaimzy8wbfr17shi7rxnazys6zb"))))
+        (base32 "16nz2n4s3djlasd6m6dqfwggf6igyfxzq5igny5i0qb8lnn13f33"))))
     (build-system gnu-build-system)
     (inputs
      `(("bdb" ,bdb)
@@ -3169,6 +3169,10 @@ related tools to process winmail.dat files.")
               (substitute* "t/ds-leak.t"
                 (("/bin/sh") (which "sh")))
               (invoke "./certs/create-certs.perl")
+              ;; XXX: This test fails due to zombie process is not reaped by
+              ;; the builder.
+              (substitute* "t/httpd-unix.t"
+                (("^SKIP: \\{") "SKIP: { skip('Guix');"))
               #t))
           (add-after 'install 'wrap-programs
             (lambda* (#:key inputs outputs #:allow-other-keys)
@@ -3199,6 +3203,7 @@ related tools to process winmail.dat files.")
         ("perl-email-mime-contenttype" ,perl-email-mime-contenttype)
         ("perl-email-mime" ,perl-email-mime)
         ("perl-email-simple" ,perl-email-simple)
+        ("perl-net-server" ,perl-net-server)
         ("perl-filesys-notify-simple" ,perl-filesys-notify-simple)
         ("perl-plack-middleware-deflater" ,perl-plack-middleware-deflater)
         ("perl-plack-middleware-reverseproxy" ,perl-plack-middleware-reverseproxy)
diff --git a/gnu/packages/monitoring.scm b/gnu/packages/monitoring.scm
index 78f94bbe4b..1eb095ce50 100644
--- a/gnu/packages/monitoring.scm
+++ b/gnu/packages/monitoring.scm
@@ -401,28 +401,26 @@ WSGI and the node exporter textfile collector.")
   (package-with-python2 python-prometheus-client))
 
 (define-public go-github-com-prometheus-node-exporter
-  (let ((commit "55c32fcf02492fe4946f7ab563547cc5df7fc61e")
-        (revision "0"))
-    (package
-      (name "go-github-com-prometheus-node-exporter")
-      (version (git-version "0.0.0" revision commit))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/prometheus/node_exporter.git")
-                      (commit commit)))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32
-                  "041b87a0sid23c29swqmi5hw6cxbxvkfj3415jg73cm2pi8wh5s6"))))
-      (build-system go-build-system)
-      (arguments
-       '(#:import-path "github.com/prometheus/node_exporter"))
-      (synopsis "Prometheus exporter for hardware and OS metrics")
-      (description "Prometheus exporter for metrics exposed by *NIX kernels,
+  (package
+    (name "go-github-com-prometheus-node-exporter")
+    (version "0.18.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/prometheus/node_exporter.git")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0s3sp1gj86p7npxl38hkgs6ymd3wjjmc5hydyg1b5wh0x3yvpx07"))))
+    (build-system go-build-system)
+    (arguments
+     '(#:import-path "github.com/prometheus/node_exporter"))
+    (synopsis "Prometheus exporter for hardware and OS metrics")
+    (description "Prometheus exporter for metrics exposed by *NIX kernels,
 written in Go with pluggable metric collectors.")
-      (home-page "https://github.com/prometheus/node_exporter")
-      (license license:asl2.0))))
+    (home-page "https://github.com/prometheus/node_exporter")
+    (license license:asl2.0)))
 
 (define-public fswatch
   (package
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 63e2686617..e378e9880b 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -24,7 +24,7 @@
 ;;; Copyright © 2019 Jakob L. Kreuze <zerodaysfordays@sdf.lonestar.org>
 ;;; Copyright © 2019 raingloom <raingloom@protonmail.com>
 ;;; Copyright © 2019 David Wilson <david@daviwil.com>
-;;; Copyright © 2019 Alexandros Theodotou <alex@zrythm.org>
+;;; Copyright © 2019, 2020 Alexandros Theodotou <alex@zrythm.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -5138,3 +5138,50 @@ MIDI drums and comes as two separate drumkits: Black Pearl and Red Zeppelin.")
     (description "Helm is a cross-platform polyphonic synthesizer available standalone
 and as an LV2 plugin.")
     (license license:gpl3+)))
+
+(define-public zrythm
+  (package
+    (name "zrythm")
+    (version "0.7.345")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append "https://www.zrythm.org/releases/zrythm-"
+                            version ".tar.xz"))
+        (sha256
+          (base32
+            "1csiwq38a1ckx23lairfpl7qjkz71wsa7a9vsxl3k58f9ybibiil"))))
+   (build-system meson-build-system)
+   (arguments
+    `(#:glib-or-gtk? #t
+      #:configure-flags
+      `("-Denable_tests=true" "-Dmanpage=true"
+        "-Dinstall_dseg_font=false" "-Denable_ffmpeg=true")))
+   (inputs
+    `(("alsa-lib" ,alsa-lib)
+      ("jack" ,jack-1)
+      ("font-dseg", font-dseg)
+      ("ffmpeg", ffmpeg)
+      ("fftw", fftw)
+      ("fftwf", fftwf)
+      ("gettext", gettext-minimal)
+      ("glibc", glibc)
+      ("gtk+", gtk+)
+      ("libsamplerate" ,libsamplerate)
+      ("libsndfile" ,libsndfile)
+      ("libyaml" ,libyaml)
+      ("lilv", lilv)
+      ("xdg-utils", xdg-utils)
+      ("rubberband", rubberband)))
+   (native-inputs
+     `(("pkg-config", pkg-config)
+       ("help2man", help2man)
+       ("libaudec" ,libaudec)
+       ("lv2", lv2)
+       ("glib" ,glib "bin"))) ;for 'glib-compile-resources'
+   (synopsis "Digital audio workstation focusing on usability")
+   (description "Zrythm is a digital audio workstation designed to be
+featureful and easy to use.  It offers unlimited automation options, LV2
+plugin support, JACK support and chord assistance.")
+   (home-page "https://www.zrythm.org")
+   (license license:agpl3+)))
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index 5f03c8f172..5c2c91891c 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -559,14 +559,14 @@ and up to 1 Mbit/s downstream.")
 (define-public whois
   (package
     (name "whois")
-    (version "5.5.4")
+    (version "5.5.5")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://debian/pool/main/w/whois/"
                            "whois_" version ".tar.xz"))
        (sha256
-        (base32 "0k97aiz7ngkjz3vhzvk27kqhnmqmkskdfx310c94qnh8fd7hiqfi"))))
+        (base32 "03akwma24gzfnsmwpjxmkzmcaxzg6fc68hmyaz0xmsl28i28l3n3"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no test suite
diff --git a/gnu/packages/nutrition.scm b/gnu/packages/nutrition.scm
index bae166de3f..f936c2651b 100644
--- a/gnu/packages/nutrition.scm
+++ b/gnu/packages/nutrition.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21,7 +22,7 @@
 (define-module (gnu packages nutrition)
   #:use-module (guix packages)
   #:use-module (guix licenses)
-  #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module (guix build-system python)
   #:use-module (gnu packages)
   #:use-module (gnu packages databases)
@@ -38,13 +39,14 @@
     (version "0.17.4")
     (source
      (origin
-      (method url-fetch)
-      (uri (string-append "https://github.com/thinkle/gourmet/archive/"
-                          version ".tar.gz"))
-      (file-name (string-append name "-" version ".tar.gz"))
+      (method git-fetch)
+      (uri (git-reference
+             (url "https://github.com/thinkle/gourmet")
+             (commit version)))
+      (file-name (git-file-name name version))
       (sha256
        (base32
-        "1qvz175arzqm10lpfx8ffadrgirs3240zzqcp0h7sl53qfwx7v8k"))))
+        "09a2zk140l4babwdj8pwcgl9v7rvwff9cn7h3ppfhm3yvsgkrx07"))))
     (build-system python-build-system)
     (native-inputs
      `(("distutils-extra"   ,python2-distutils-extra)
@@ -64,9 +66,9 @@
        #:phases
        (modify-phases %standard-phases
          (replace 'install
-           (lambda* (#:key make-flags #:allow-other-keys)
+           (lambda* (#:key outputs #:allow-other-keys)
              (invoke "python" "setup.py" "install" "--prefix"
-                     (assoc-ref %outputs "out")))))))
+                     (assoc-ref outputs "out")))))))
     (home-page "https://thinkle.github.io/gourmet/")
     (synopsis "Recipe organizer")
     (description
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index a278504ae0..32b03359d8 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -228,12 +228,12 @@ functional, imperative and object-oriented styles of programming.")
                           "--prefix" out
                           "--mandir" mandir))))))))))
 
-(define-public ocaml ocaml-4.07)
+(define-public ocaml ocaml-4.09)
 
 (define-public ocamlbuild
   (package
     (name "ocamlbuild")
-    (version "0.13.1")
+    (version "0.14.0")
     (source
      (origin
        (method git-fetch)
@@ -242,31 +242,22 @@ functional, imperative and object-oriented styles of programming.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0v37vjvdqw35yvj8ipmlzmwf1jhip0hbsmcbdcn9cnj12p3mr6k7"))))
-    (build-system gnu-build-system)
+        (base32 "1hb5mcdz4wv7sh1pj7dq9q4fgz5h3zg7frpiya6s8zd3ypwzq0kh"))))
+    (build-system ocaml-build-system)
     (arguments
-     `(#:test-target "test"
-       #:tests? #f; tests require findlib
-       #:make-flags
+     `(#:make-flags
        (list (string-append "OCAMLBUILD_PREFIX=" (assoc-ref %outputs "out"))
              (string-append "OCAMLBUILD_BINDIR=" (assoc-ref %outputs "out")
-                        "/bin")
+                            "/bin")
              (string-append "OCAMLBUILD_LIBDIR=" (assoc-ref %outputs "out")
-                        "/lib/ocaml/site-lib")
+                            "/lib/ocaml/site-lib")
              (string-append "OCAMLBUILD_MANDIR=" (assoc-ref %outputs "out")
-                        "/share/man"))
+                            "/share/man"))
        #:phases
        (modify-phases %standard-phases
-         (delete 'bootstrap)
-         (delete 'configure)
-         (add-before 'build 'findlib-environment
-           (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out")))
-               (setenv "OCAMLFIND_DESTDIR" (string-append out "/lib/ocaml/site-lib"))
-               (setenv "OCAMLFIND_LDCONF" "ignore")
-               #t))))))
-    (native-inputs
-     `(("ocaml" ,ocaml)))
+         (delete 'configure))
+       ; some failures because of changes in OCaml's error message formating
+       #:tests? #f))
     (home-page "https://github.com/ocaml/ocamlbuild")
     (synopsis "OCaml build tool")
     (description "OCamlbuild is a generic build tool, that has built-in rules
@@ -820,6 +811,7 @@ Knuth’s LR(1) parser construction technique.")
                  (substitute* "config.make"
                    ((ocaml) out))
                  #t))))))
+    (properties `((ocaml4.07-variant . ,(delay ocaml4.07-lablgtk))))
     (home-page "http://lablgtk.forge.ocamlcore.org/")
     (synopsis "GTK+ bindings for OCaml")
     (description
@@ -833,6 +825,16 @@ libglade (and it an generate OCaml code from .glade files),
 libpanel, librsvg and quartz.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.07-lablgtk
+  (package
+    (inherit lablgtk)
+    (name "ocaml4.07-lablgtk")
+    (native-inputs
+     `(("ocaml" ,ocaml-4.07)
+       ("findlib" ,ocaml4.07-findlib)
+       ("pkg-config" ,pkg-config)))
+    (properties '())))
+
 (define-public unison
   (package
     (name "unison")
@@ -850,7 +852,7 @@ libpanel, librsvg and quartz.")
     (outputs '("out"
                "doc"))                  ; 1.9 MiB of documentation
     (native-inputs
-     `(("ocaml" ,ocaml)
+     `(("ocaml" ,ocaml-4.07)
        ;; For documentation
        ("ghostscript" ,ghostscript)
        ("texlive" ,texlive-tiny)
@@ -1269,6 +1271,9 @@ release of Jane Street packages.  It reads metadata from @file{dune} files
 following a very simple s-expression syntax.")
     (license license:expat)))
 
+(define-public ocaml4.07-dune
+  (package-with-ocaml4.07 dune))
+
 (define-public ocaml-migrate-parsetree
   (package
     (name "ocaml-migrate-parsetree")
@@ -1439,9 +1444,9 @@ to operate on the result type available from OCaml 4.03 in the standard
 library.")
     (license license:isc)))
 
-(define-public ocaml-sqlite3
+(define-public ocaml4.07-sqlite3
   (package
-    (name "ocaml-sqlite3")
+    (name "ocaml4.07-sqlite3")
     (version "4.4.1")
     (source
      (origin
@@ -1454,9 +1459,12 @@ library.")
         (base32
          "1536agm5fgcqysszhpd3kmw7lkc5n5ni7gmlyglrbvmnmrwf3av2"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("ocaml-base" ,ocaml-base)
-       ("ocaml-stdio" ,ocaml-stdio)
+     `(("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-stdio" ,ocaml4.07-stdio)
        ("pkg-config" ,pkg-config)))
     (inputs
      `(("sqlite" ,sqlite)))
@@ -1666,9 +1674,9 @@ displayed at the end of the run (with the full logs ready to inspect), with a
 simple (yet expressive) query language to select the tests to run.")
     (license license:isc)))
 
-(define-public ocaml-ppx-tools
+(define-public ocaml4.07-ppx-tools
   (package
-    (name "ocaml-ppx-tools")
+    (name "ocaml4.07-ppx-tools")
     (version "5.1+4.06.0")
     (source
      (origin
@@ -1682,7 +1690,9 @@ simple (yet expressive) query language to select the tests to run.")
     (build-system ocaml-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases (delete 'configure))
-       #:tests? #f))
+       #:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_tools")))
     (home-page "https://github.com/alainfrisch/ppx_tools")
     (synopsis "Tools for authors of ppx rewriters and other syntactic tools")
@@ -1774,12 +1784,13 @@ for mapping files in memory.  This function is the same as the
     (version "5.1.1")
     (source
       (origin
-        (method url-fetch)
-        (uri (string-append "https://github.com/ocsigen/lwt/archive/" version
-                            ".tar.gz"))
-        (file-name (string-append name "-" version ".tar.gz"))
+        (method git-fetch)
+        (uri (git-reference
+               (url "https://github.com/ocsigen/lwt")
+               (commit version)))
+        (file-name (git-file-name name version))
         (sha256 (base32
-                  "0gwdmhn0qx03agc45dplj73ia5y1gb42aan64ywfxmll3lsnr2h7"))))
+                 "1nl7rdnwfdhwcsm5zpay1nr9y5cbapd9x1qzily7zk9ab4v52m8g"))))
     (build-system dune-build-system)
     (arguments
      `(#:package "lwt"))
@@ -1982,9 +1993,9 @@ format.  It can process XML documents without a complete in-memory
 representation of the data.")
     (license license:isc)))
 
-(define-public ocaml-gen
+(define-public ocaml4.07-gen
   (package
-    (name "ocaml-gen")
+    (name "ocaml4.07-gen")
     (version "0.5.2")
     (source (origin
               (method git-fetch)
@@ -1998,21 +2009,23 @@ representation of the data.")
     (build-system dune-build-system)
     (arguments
      `(#:tests? #f; no tests
-       #:package "gen"))
+       #:package "gen"
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-     `(("ocaml-odoc" ,ocaml-odoc)))
+     `(("ocaml-odoc" ,ocaml4.07-odoc)))
     (native-inputs
-     `(("ocaml-qtest" ,ocaml-qtest)
-       ("ocaml-qcheck" ,ocaml-qcheck)))
+     `(("ocaml-qtest" ,(package-with-ocaml4.07 ocaml-qtest))
+       ("ocaml-qcheck" ,(package-with-ocaml4.07 ocaml-qcheck))))
     (home-page "https://github.com/c-cube/gen/")
     (synopsis "Iterators for OCaml, both restartable and consumable")
     (description "Gen implements iterators of OCaml, that are both restartable
 and consumable.")
     (license license:bsd-2)))
 
-(define-public ocaml-sedlex
+(define-public ocaml4.07-sedlex
   (package
-    (name "ocaml-sedlex")
+    (name "ocaml4.07-sedlex")
     (version "2.1")
     (source (origin
               (method git-fetch)
@@ -2041,13 +2054,16 @@ and consumable.")
          (add-before 'build 'chmod
            (lambda _
              (for-each (lambda (file) (chmod file #o644)) (find-files "." ".*"))
-             #t)))))
+             #t)))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("ocamlbuild" ,ocamlbuild)))
+     `(("ocamlbuild" ,(package-with-ocaml4.07 ocamlbuild))))
     (propagated-inputs
-     `(("ocaml-gen" ,ocaml-gen)
-       ("ocaml-ppx-tools-versioned" ,ocaml-ppx-tools-versioned)
-       ("ocaml-uchar" ,ocaml-uchar)))
+     `(("ocaml-gen" ,ocaml4.07-gen)
+       ("ocaml-ppx-tools-versioned"
+        ,(package-with-ocaml4.07 ocaml-ppx-tools-versioned))
+       ("ocaml-uchar" ,(package-with-ocaml4.07 ocaml-uchar))))
     ;; These three files are needed by src/generator/data/dune, but would be
     ;; downloaded using curl at build time.
     (inputs
@@ -2353,9 +2369,9 @@ every compliant installation of OCaml and organize these libraries into a
 hierarchy of modules.")
     (license license:lgpl2.1+)))
 
-(define-public ocaml-pcre
+(define-public ocaml4.07-pcre
   (package
-    (name "ocaml-pcre")
+    (name "ocaml4.07-pcre")
     (version "7.4.1")
     (source (origin
               (method git-fetch)
@@ -2368,9 +2384,12 @@ hierarchy of modules.")
                 "11sd8g668h48790lamz0riw9jgnfkaif5qdfa0akcndwa6aj07jf"))))
     (build-system dune-build-system)
     (arguments
-     `(#:test-target "."))
+     `(#:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib
+       #:dune ,ocaml4.07-dune))
     (native-inputs
-     `(("ocaml-base" ,ocaml-base)
+     `(("ocaml-base" ,ocaml4.07-base)
        ("pcre:bin" ,pcre "bin")))
     (propagated-inputs `(("pcre" ,pcre)))
     (home-page "https://mmottl.github.io/pcre-ocaml")
@@ -2380,9 +2399,9 @@ matching and substitution, similar to the functionality offered by the Perl
 language.")
     (license license:lgpl2.1+))); with the OCaml link exception
 
-(define-public ocaml-expect
+(define-public ocaml4.07-expect
   (package
-    (name "ocaml-expect")
+    (name "ocaml4.07-expect")
     (version "0.0.6")
     (source (origin
               (method url-fetch)
@@ -2391,14 +2410,17 @@ language.")
                (base32
                 "098qvg9d4yrqzr5ax291y3whrpax0m3sx4gi6is0mblc96r9yqk0"))))
     (arguments
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("ocamlbuild" ,ocamlbuild)
-       ("ocaml-num" ,ocaml-num)
-       ("ocaml-pcre" ,ocaml-pcre)
-       ("ounit" ,ocaml-ounit)))
-    (propagated-inputs `(("batteries" ,ocaml-batteries)))
+     `(("ocamlbuild" ,(package-with-ocaml4.07 ocamlbuild))
+       ("ocaml-num" ,(package-with-ocaml4.07 ocaml-num))
+       ("ocaml-pcre" ,ocaml4.07-pcre)
+       ("ounit" ,(package-with-ocaml4.07 ocaml-ounit))))
+    (propagated-inputs
+     `(("batteries" ,(package-with-ocaml4.07 ocaml-batteries))))
     (home-page "https://forge.ocamlcore.org/projects/ocaml-expect/")
     (synopsis "Simple implementation of expect")
     (description "Help building unitary testing of interactive program.  You
@@ -2637,13 +2659,14 @@ standard iterator type starting from 4.07.")
     (name "ocaml-ocplib-endian")
     (version "1.0")
     (source (origin
-              (method url-fetch)
-              (uri (string-append "https://github.com/OCamlPro/ocplib-endian/"
-                                  "archive/" version ".tar.gz"))
+              (method git-fetch)
+              (uri (git-reference
+                     (url "https://github.com/OCamlPro/ocplib-endian/")
+                     (commit version)))
               (sha256
                (base32
-                "0hwj09rnzjs0m0kazz5h2mgs6p95j0zlga8cda5srnzqmzhniwkn"))
-              (file-name (string-append name "-" version ".tar.gz"))))
+                "0s1ld3kavz892b8awyxyg1mr98h2g61gy9ci5v6yb49bsii6wicw"))
+              (file-name (git-file-name name version))))
     (build-system ocaml-build-system)
     (native-inputs
      `(("cppo" ,ocaml-cppo)
@@ -2707,9 +2730,9 @@ writing to these structures, and they are accessed via the Bigarray module.")
     (description "Hex is a minimal library providing hexadecimal converters.")
     (license license:isc)))
 
-(define-public ocaml-ezjsonm
+(define-public ocaml4.07-ezjsonm
   (package
-    (name "ocaml-ezjsonm")
+    (name "ocaml4.07-ezjsonm")
     (version "1.1.0")
     (source
      (origin
@@ -2723,13 +2746,15 @@ writing to these structures, and they are accessed via the Bigarray module.")
     (build-system dune-build-system)
     (arguments
      `(#:package "ezjsonm"
-       #:test-target "."))
+       #:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("ocaml-alcotest" ,ocaml-alcotest)))
+     `(("ocaml-alcotest" ,(package-with-ocaml4.07 ocaml-alcotest))))
     (propagated-inputs
-     `(("ocaml-hex" ,ocaml-hex)
-       ("ocaml-jsonm" ,ocaml-jsonm)
-       ("ocaml-sexplib" ,ocaml-sexplib)))
+     `(("ocaml-hex" ,(package-with-ocaml4.07 ocaml-hex))
+       ("ocaml-jsonm" ,(package-with-ocaml4.07 ocaml-jsonm))
+       ("ocaml-sexplib" ,ocaml4.07-sexplib)))
     (home-page "https://github.com/mirage/ezjsonm/")
     (synopsis "Read and write JSON data")
     (description "Ezjsonm provides more convenient (but far less flexible) input
@@ -2738,9 +2763,9 @@ the need to write signal code, which is useful for quick scripts that manipulate
 JSON.")
     (license license:isc)))
 
-(define-public ocaml-uri
+(define-public ocaml4.07-uri
   (package
-    (name "ocaml-uri")
+    (name "ocaml4.07-uri")
     (version "2.2.0")
     (source
      (origin
@@ -2759,14 +2784,16 @@ JSON.")
          (add-before 'build 'update-deprecated
            (lambda _
              (substitute* "lib/uri.ml"
-               (("Re.get") "Re.Group.get")))))))
+               (("Re.get") "Re.Group.get")))))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("ocaml-ounit" ,ocaml-ounit)
-       ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)))
+     `(("ocaml-ounit" ,(package-with-ocaml4.07 ocaml-ounit))
+       ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)))
     (propagated-inputs
-     `(("ocaml-re" ,ocaml-re)
-       ("ocaml-sexplib0" ,ocaml-sexplib0)
-       ("ocaml-stringext" ,ocaml-stringext)))
+     `(("ocaml-re" ,(package-with-ocaml4.07 ocaml-re))
+       ("ocaml-sexplib0" ,ocaml4.07-sexplib0)
+       ("ocaml-stringext" ,(package-with-ocaml4.07 ocaml-stringext))))
     (home-page "https://github.com/mirage/ocaml-uri")
     (synopsis "RFC3986 URI/URL parsing library")
     (description "OCaml-uri is a library for parsing URI/URL in the RFC3986 format.")
@@ -2803,9 +2830,9 @@ JSON.")
 Format module of the OCaml standard library.")
     (license license:bsd-3)))
 
-(define-public ocaml-piqilib
+(define-public ocaml4.07-piqilib
   (package
-    (name "ocaml-piqilib")
+    (name "ocaml4.07-piqilib")
     (version "0.6.15")
     (source
      (origin
@@ -2849,14 +2876,16 @@ Format module of the OCaml standard library.")
              (mkdir-p stubs)
              (symlink (string-append lib "/dllpiqilib_stubs.so")
                       (string-append stubs "/dllpiqilib_stubs.so"))
-             #t))))))
+             #t))))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
      `(("which" ,which)))
     (propagated-inputs
-     `(("ocaml-xmlm" ,ocaml-xmlm)
-       ("ocaml-sedlex" ,ocaml-sedlex)
-       ("ocaml-easy-format" ,ocaml-easy-format)
-       ("ocaml-base64" ,ocaml-base64)))
+     `(("ocaml-xmlm" ,(package-with-ocaml4.07 ocaml-xmlm))
+       ("ocaml-sedlex" ,ocaml4.07-sedlex)
+       ("ocaml-easy-format" ,(package-with-ocaml4.07 ocaml-easy-format))
+       ("ocaml-base64" ,(package-with-ocaml4.07 ocaml-base64))))
     (home-page "http://piqi.org")
     (synopsis "Data serialization and conversion library")
     (description "Piqilib is the common library used by the piqi command-line
@@ -2922,9 +2951,9 @@ and 4 (random based) according to RFC 4122.")
     (description "OCamlgraph is a generic graph library for OCaml.")
     (license license:lgpl2.1)))
 
-(define-public ocaml-piqi
+(define-public ocaml4.07-piqi
   (package
-    (name "ocaml-piqi")
+    (name "ocaml4.07-piqi")
     (version "0.7.7")
     (source (origin
               (method url-fetch)
@@ -2942,14 +2971,16 @@ and 4 (random based) according to RFC 4122.")
                             "/bin/sh"))
        #:phases
        (modify-phases %standard-phases
-         (delete 'configure))))
+         (delete 'configure))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
      `(("which" ,which)
        ("protobuf" ,protobuf))) ; for tests
     (propagated-inputs
-     `(("ocaml-num" ,ocaml-num)
-       ("ocaml-piqilib" ,ocaml-piqilib)
-       ("ocaml-stdlib-shims" ,ocaml-stdlib-shims)))
+     `(("ocaml-num" ,(package-with-ocaml4.07 ocaml-num))
+       ("ocaml-piqilib" ,ocaml4.07-piqilib)
+       ("ocaml-stdlib-shims" ,(package-with-ocaml4.07 ocaml-stdlib-shims))))
     (home-page "https://github.com/alavrik/piqi-ocaml")
     (synopsis "Protocol serialization system for OCaml")
     (description "Piqi is a multi-format data serialization system for OCaml.
@@ -2973,24 +3004,24 @@ XML and Protocol Buffers formats.")
                 "0ryf2xb37pj2f9mc3p5prqgqrylph9qgq7q9jnbx8b03nzzpa6h6"))))
    (build-system ocaml-build-system)
    (native-inputs
-    `(("ocaml-oasis" ,ocaml-oasis)
+    `(("ocaml-oasis" ,(package-with-ocaml4.07 ocaml-oasis))
       ("clang" ,clang-3.8)
-      ("ocaml-ounit" ,ocaml-ounit)))
+      ("ocaml-ounit" ,(package-with-ocaml4.07 ocaml-ounit))))
    (propagated-inputs
-    `(("camlzip" ,camlzip)
-      ("ocaml-bitstring" ,ocaml-bitstring)
-      ("ocaml-cmdliner" ,ocaml-cmdliner)
-      ("ocaml-core-kernel" ,ocaml-core-kernel)
-      ("ocaml-ezjsonm" ,ocaml-ezjsonm)
-      ("ocaml-fileutils" ,ocaml-fileutils)
-      ("ocaml-frontc" ,ocaml-frontc)
-      ("ocaml-graph" ,ocaml-graph)
-      ("ocaml-ocurl" ,ocaml-ocurl)
-      ("ocaml-piqi" ,ocaml-piqi)
-      ("ocaml-ppx-jane" ,ocaml-ppx-jane)
-      ("ocaml-uuidm" ,ocaml-uuidm)
-      ("ocaml-uri" ,ocaml-uri)
-      ("ocaml-zarith" ,ocaml-zarith)))
+    `(("camlzip" ,(package-with-ocaml4.07 camlzip))
+      ("ocaml-bitstring" ,(package-with-ocaml4.07 ocaml-bitstring))
+      ("ocaml-cmdliner" ,(package-with-ocaml4.07 ocaml-cmdliner))
+      ("ocaml-core-kernel" ,ocaml4.07-core-kernel)
+      ("ocaml-ezjsonm" ,ocaml4.07-ezjsonm)
+      ("ocaml-fileutils" ,(package-with-ocaml4.07 ocaml-fileutils))
+      ("ocaml-frontc" ,(package-with-ocaml4.07 ocaml-frontc))
+      ("ocaml-graph" ,(package-with-ocaml4.07 ocaml-graph))
+      ("ocaml-ocurl" ,(package-with-ocaml4.07 ocaml-ocurl))
+      ("ocaml-piqi" ,ocaml4.07-piqi)
+      ("ocaml-ppx-jane" ,ocaml4.07-ppx-jane)
+      ("ocaml-uuidm" ,(package-with-ocaml4.07 ocaml-uuidm))
+      ("ocaml-uri" ,ocaml4.07-uri)
+      ("ocaml-zarith" ,(package-with-ocaml4.07 ocaml-zarith))))
    (inputs
     `(("llvm" ,llvm-3.8)
       ("gmp" ,gmp)))
@@ -3014,7 +3045,9 @@ XML and Protocol Buffers formats.")
                       "/lib/ocaml/site-lib")
                     "--with-llvm-version=3.8"
                     "--with-llvm-config=llvm-config"
-                    "--enable-everything"))))))
+                    "--enable-everything"))))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
    (synopsis "Binary Analysis Platform")
    (description "Binary Analysis Platform is a framework for writing program
 analysis tools, that target binary files.  The framework consists of a plethora
@@ -3054,9 +3087,9 @@ library is currently designed for Unicode Standard 3.2.")
     ;; with an exception for linked libraries to use a different license
     (license license:lgpl2.0+)))
 
-(define-public ocaml-charinfo-width
+(define-public ocaml4.07-charinfo-width
   (package
-    (name "ocaml-charinfo-width")
+    (name "ocaml4.07-charinfo-width")
     (version "1.1.0")
     (source (origin
               (method url-fetch)
@@ -3067,11 +3100,14 @@ library is currently designed for Unicode Standard 3.2.")
                (base32
                 "00bv4p1yqs8y0z4z07wd9w9yyv669dikp9b04dcjbwpiy2wy0086"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-     `(("ocaml-result" ,ocaml-result)
-       ("ocaml-camomile" ,ocaml-camomile)))
+     `(("ocaml-result" ,(package-with-ocaml4.07 ocaml-result))
+       ("ocaml-camomile" ,(package-with-ocaml4.07 ocaml-camomile))))
     (native-inputs
-     `(("ocaml-ppx-expect" ,ocaml-ppx-expect)))
+     `(("ocaml-ppx-expect" ,ocaml4.07-ppx-expect)))
     (properties
      `((upstream-name . "charInfo_width")))
     (home-page "https://bitbucket.org/zandoye/charinfo_width/")
@@ -3080,9 +3116,9 @@ library is currently designed for Unicode Standard 3.2.")
 function that follows the prototype of POSIX's wcwidth.")
     (license license:expat)))
 
-(define-public ocaml-zed
+(define-public ocaml4.07-zed
   (package
-    (name "ocaml-zed")
+    (name "ocaml4.07-zed")
     (version "2.0.3")
     (source
      (origin
@@ -3096,11 +3132,13 @@ function that follows the prototype of POSIX's wcwidth.")
     (build-system dune-build-system)
     (arguments
      `(#:jbuild? #t
-       #:test-target "."))
+       #:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-     `(("ocaml-camomile" ,ocaml-camomile)
-       ("ocaml-charinfo-width" ,ocaml-charinfo-width)
-       ("ocaml-react" ,ocaml-react)))
+     `(("ocaml-camomile" ,(package-with-ocaml4.07 ocaml-camomile))
+       ("ocaml-charinfo-width" ,ocaml4.07-charinfo-width)
+       ("ocaml-react" ,(package-with-ocaml4.07 ocaml-react))))
     (home-page "https://github.com/diml/zed")
     (synopsis "Abstract engine for text editing in OCaml")
     (description "Zed is an abstract engine for text edition.  It can be used
@@ -3108,9 +3146,9 @@ to write text editors, edition widgets, readlines, etc.  You just have to
 connect an engine to your inputs and rendering functions to get an editor.")
     (license license:bsd-3)))
 
-(define-public ocaml-lambda-term
+(define-public ocaml4.07-lambda-term
   (package
-    (name "ocaml-lambda-term")
+    (name "ocaml4.07-lambda-term")
     (version "2.0.2")
     (source
      (origin
@@ -3124,12 +3162,14 @@ connect an engine to your inputs and rendering functions to get an editor.")
     (build-system dune-build-system)
     (arguments
      `(#:build-flags (list "--profile" "release")
-       #:tests? #f))
+       #:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-     `(("ocaml-lwt" ,ocaml-lwt)
-       ("ocaml-lwt-log" ,ocaml-lwt-log)
-       ("ocaml-lwt-react" ,ocaml-lwt-react)
-       ("ocaml-zed" ,ocaml-zed)))
+     `(("ocaml-lwt" ,(package-with-ocaml4.07 ocaml-lwt))
+       ("ocaml-lwt-log" ,(package-with-ocaml4.07 ocaml-lwt-log))
+       ("ocaml-lwt-react" ,(package-with-ocaml4.07 ocaml-lwt-react))
+       ("ocaml-zed" ,ocaml4.07-zed)))
     (inputs
      `(("libev" ,libev)))
     (home-page "https://github.com/diml/lambda-term")
@@ -3142,9 +3182,9 @@ manipulation than, for example, ncurses, by providing a native OCaml interface
 instead of bindings to a C library.")
     (license license:bsd-3)))
 
-(define-public ocaml-utop
+(define-public ocaml4.07-utop
   (package
-    (name "ocaml-utop")
+    (name "ocaml4.07-utop")
     (version "2.4.3")
     (source
      (origin
@@ -3158,15 +3198,17 @@ instead of bindings to a C library.")
     (build-system dune-build-system)
     (arguments
      `(#:jbuild? #t
-       #:test-target "."))
+       #:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("cppo" ,ocaml-cppo)))
+     `(("cppo" ,(package-with-ocaml4.07 ocaml-cppo))))
     (propagated-inputs
-     `(("lambda-term" ,ocaml-lambda-term)
-       ("lwt" ,ocaml-lwt)
-       ("react" ,ocaml-react)
-       ("camomile" ,ocaml-camomile)
-       ("zed" ,ocaml-zed)))
+     `(("lambda-term" ,ocaml4.07-lambda-term)
+       ("lwt" ,(package-with-ocaml4.07 ocaml-lwt))
+       ("react" ,(package-with-ocaml4.07 ocaml-react))
+       ("camomile" ,(package-with-ocaml4.07 ocaml-camomile))
+       ("zed" ,ocaml4.07-zed)))
     (home-page "https://github.com/ocaml-community/utop")
     (synopsis "Improved interface to the OCaml toplevel")
     (description "UTop is an improved toplevel for OCaml.  It can run in a
@@ -3212,12 +3254,14 @@ long and size_t whose sizes depend on the host platform.")
    (version "0.14.0")
    (home-page "https://github.com/ocamllabs/ocaml-ctypes")
    (source (origin
-             (method url-fetch)
-             (uri (string-append home-page "/archive/" version ".tar.gz"))
-             (file-name (string-append name "-" version ".tar.gz"))
+             (method git-fetch)
+             (uri (git-reference
+                    (url home-page)
+                    (commit version)))
+             (file-name (git-file-name name version))
              (sha256
               (base32
-               "0zrsd42q2nciyg9375g2kydqax6ay299rhyfgms59qiw7d9ylyp9"))))
+               "1b2q3h63ngf4x9qp65qwapf2dg9q0mcdah6qjm2q0c7v2p5vysv9"))))
    (build-system ocaml-build-system)
    (arguments
     `(#:tests? #f; require an old lwt
@@ -3225,6 +3269,14 @@ long and size_t whose sizes depend on the host platform.")
       (list (string-append "INSTALL_HEADERS = $(wildcard $($(PROJECT).dir)/*.h)"))
       #:phases
       (modify-phases %standard-phases
+        (add-after 'unpack 'make-writable
+          (lambda _
+            (for-each
+              (lambda (file)
+                (let ((stat (stat file)))
+                  (chmod file (+ #o200 (stat:mode stat)))))
+              (find-files "." "."))
+            #t))
         (delete 'configure))))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
@@ -3432,9 +3484,9 @@ Dedukti files.")
 syntax checking on dedukti files.")
       (license license:cecill-b))))
 
-(define-public ocaml-ppx-inline-test
+(define-public ocaml4.07-ppx-inline-test
   (package
-    (name "ocaml-ppx-inline-test")
+    (name "ocaml4.07-ppx-inline-test")
     (version "0.12.0")
     (home-page "https://github.com/janestreet/ppx_inline_test")
     (source
@@ -3450,14 +3502,17 @@ syntax checking on dedukti files.")
     (build-system dune-build-system)
     (arguments
      ;see home page README for further information
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (inputs
-     `(("ocaml-base" ,ocaml-base)
-       ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-       ("ocaml-compiler-libs" ,ocaml-compiler-libs)
-       ("ocaml-sexplib0" ,ocaml-sexplib0)
-       ("ocaml-stdio" ,ocaml-stdio)
-       ("ocaml-ppxlib" ,ocaml-ppxlib)))
+     `(("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-migrate-parsetree"
+        ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+       ("ocaml-compiler-libs" ,(package-with-ocaml4.07 ocaml-compiler-libs))
+       ("ocaml-sexplib0" ,ocaml4.07-sexplib0)
+       ("ocaml-stdio" ,ocaml4.07-stdio)
+       ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_inline_test")))
     (synopsis "Syntax extension for writing in-line tests in ocaml code")
     (description "This package contains a syntax extension for writing
@@ -3503,9 +3558,9 @@ for programming languages, but also for manipulating terms of the λ-calculus
 or quantified formulas.")
     (license license:gpl3+)))
 
-(define-public ocaml-earley
+(define-public ocaml4.07-earley
   (package
-    (name "ocaml-earley")
+    (name "ocaml4.07-earley")
     (version "2.0.0")
     (home-page "https://github.com/rlepigre/ocaml-earley")
     (source
@@ -3520,7 +3575,9 @@ or quantified formulas.")
          "18k7bi7krc4bvqnhijz1q0pfr0nfahghfjifci8rh1q4i5zd0xz5"))))
     (build-system dune-build-system)
     (arguments
-     `(#:test-target "."))
+     `(#:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (synopsis "Parsing library based on Earley Algorithm")
     (description "Earley is a parser combinator library base on Earley's
 algorithm.  It is intended to be used in conjunction with an OCaml syntax
@@ -3670,9 +3727,9 @@ Mercurial's @code{https://www.selenic.com/blog/?p=663, unified test
 format}.  @code{craml} is released as a single binary (called @code{craml}).")
     (license license:isc)))
 
-(define-public ocaml-merlin
+(define-public ocaml4.07-merlin
   (package
-    (name "ocaml-merlin")
+    (name "ocaml4.07-merlin")
     (version "3.2.2")
     (home-page "https://ocaml.github.io/merlin/")
     (source
@@ -3687,14 +3744,16 @@ format}.  @code{craml} is released as a single binary (called @code{craml}).")
          "15ssgmwdxylbwhld9p1cq8x6kadxyhll5bfyf11dddj6cldna3hb"))))
     (build-system dune-build-system)
     (inputs
-     `(("ocaml-biniou" ,ocaml-biniou)
-       ("ocaml-yojson" ,ocaml-yojson)
-       ("ocaml-easy-format" ,ocaml-easy-format)))
+     `(("ocaml-biniou" ,(package-with-ocaml4.07 ocaml-biniou))
+       ("ocaml-yojson" ,(package-with-ocaml4.07 ocaml-yojson))
+       ("ocaml-easy-format" ,(package-with-ocaml4.07 ocaml-easy-format))))
     (native-inputs
      `(("ocaml-findlib" ,ocaml-findlib)))
     (arguments
-     '(#:jbuild? #t
-       #:tests? #f)) ;; Errors in tests in version 3.2.2
+     `(#:jbuild? #t
+       #:tests? #f ;; Errors in tests in version 3.2.2
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (synopsis "Context sensitive completion for OCaml in Vim and Emacs")
     (description "Merlin is an editor service that provides modern IDE
 features for OCaml.  Emacs and Vim support is provided out-of-the-box.
@@ -3702,9 +3761,9 @@ External contributors added support for Visual Studio Code, Sublime Text and
 Atom.")
     (license license:expat)))
 
-(define-public ocaml-gsl
+(define-public ocaml4.07-gsl
   (package
-    (name "ocaml-gsl")
+    (name "ocaml4.07-gsl")
     (version "1.24.0")
     (source
      (origin
@@ -3725,12 +3784,15 @@ Atom.")
            (lambda* (#:key inputs #:allow-other-keys)
              (substitute* "src/config/discover.ml"
                (("/usr") (assoc-ref inputs "gsl")))
-             #t)))))
+             #t)))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib
+       #:dune ,ocaml4.07-dune))
     (inputs
      `(("gsl" ,gsl)))
     (propagated-inputs
-     `(("ocaml-base" ,ocaml-base)
-       ("ocaml-stdio" ,ocaml-stdio)))
+     `(("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-stdio" ,ocaml4.07-stdio)))
     (home-page "https://mmottl.github.io/gsl-ocaml")
     (synopsis "Bindings to the GNU Scientific Library")
     (description
@@ -3738,9 +3800,9 @@ Atom.")
 the OCaml language.")
     (license license:gpl3+)))
 
-(define-public ocaml-gsl-1
+(define-public ocaml4.07-gsl-1
   (package
-    (inherit ocaml-gsl)
+    (inherit ocaml4.07-gsl)
     (version "1.19.3")
     (source (origin
               (method url-fetch)
@@ -3754,8 +3816,10 @@ the OCaml language.")
     (inputs
      `(("gsl" ,gsl)))
     (native-inputs
-     `(("ocamlbuild" ,ocamlbuild)))
-    (arguments '())
+     `(("ocamlbuild" ,(package-with-ocaml4.07 ocamlbuild))))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs '())))
 
 (define-public cubicle
@@ -3816,9 +3880,9 @@ an arbitrary number of processes.  Cache coherence protocols and mutual
 exclusion algorithms are typical examples of such systems.")
     (license license:asl2.0)))
 
-(define-public ocaml-sexplib0
+(define-public ocaml4.07-sexplib0
   (package
-    (name "ocaml-sexplib0")
+    (name "ocaml4.07-sexplib0")
     (version "0.11.0")
     (home-page "https://github.com/janestreet/sexplib0")
     (source
@@ -3833,7 +3897,9 @@ exclusion algorithms are typical examples of such systems.")
          "07v3ggyss7xhfv14bjk1n87sr42iqwj4cgjiv2lcdfkqk49i2bmi"))))
     (build-system dune-build-system)
     (arguments
-     '(#:tests? #f)) ;no tests
+     `(#:tests? #f ;no tests
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (synopsis "Library containing the definition of S-expressions and some
 base converters")
     (description "Part of Jane Street's Core library The Core suite of
@@ -3841,9 +3907,9 @@ libraries is an industrial strength alternative to OCaml's standard library
 that was developed by Jane Street, the largest industrial user of OCaml.")
 (license license:expat)))
 
-(define-public ocaml-parsexp
+(define-public ocaml4.07-parsexp
   (package
-    (name "ocaml-parsexp")
+    (name "ocaml4.07-parsexp")
     (version "0.11.0")
     (home-page "https://github.com/janestreet/parsexp")
     (source
@@ -3857,8 +3923,11 @@ that was developed by Jane Street, the largest industrial user of OCaml.")
         (base32
          "1nyq23s5igd8cf3n4qxprjvhbmb6ighb3fy5mw7hxl0mdgsw5fvz"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (inputs
-     `(("ocaml-sexplib0" ,ocaml-sexplib0)))
+     `(("ocaml-sexplib0" ,ocaml4.07-sexplib0)))
     (synopsis "S-expression parsing library")
     (description
      "This library provides generic parsers for parsing S-expressions from
@@ -3887,9 +3956,9 @@ s-expressions from files or other external sources, you should use
 parsexp_io.")
     (license license:expat)))
 
-(define-public ocaml-sexplib
+(define-public ocaml4.07-sexplib
   (package
-    (name "ocaml-sexplib")
+    (name "ocaml4.07-sexplib")
     (version "0.11.0")
     (home-page "https://github.com/janestreet/sexplib")
     (source
@@ -3903,10 +3972,13 @@ parsexp_io.")
         (base32
          "1qfl0m04rpcjvc4yw1hzh6r16jpwmap0sa9ax6zjji67dz4szpyb"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-     `(("ocaml-num" ,ocaml-num)
-       ("ocaml-parsexp" ,ocaml-parsexp)
-       ("ocaml-sexplib0" ,ocaml-sexplib0)))
+     `(("ocaml-num" ,(package-with-ocaml4.07 ocaml-num))
+       ("ocaml-parsexp" ,ocaml4.07-parsexp)
+       ("ocaml-sexplib0" ,ocaml4.07-sexplib0)))
     (synopsis
      "Library for serializing OCaml values to and from S-expressions")
     (description
@@ -3914,9 +3986,9 @@ parsexp_io.")
 functionality for parsing and pretty-printing s-expressions.")
     (license license:expat)))
 
-(define-public ocaml-base
+(define-public ocaml4.07-base
   (package
-    (name "ocaml-base")
+    (name "ocaml4.07-base")
     (version "0.11.1")
     (home-page "https://github.com/janestreet/base")
     (source
@@ -3931,14 +4003,16 @@ functionality for parsing and pretty-printing s-expressions.")
          "0j6xb4265jr41vw4fjzak6yr8s30qrnzapnc6rl1dxy8bjai0nir"))))
     (build-system dune-build-system)
     (propagated-inputs
-     `(("ocaml-sexplib0" ,ocaml-sexplib0)))
+     `(("ocaml-sexplib0" ,ocaml4.07-sexplib0)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
          (replace 'build
            ;; make warnings non fatal (jbuilder behaviour)
            (lambda _
-             (invoke "dune" "build" "@install" "--profile=release"))))))
+             (invoke "dune" "build" "@install" "--profile=release"))))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
   (synopsis
     "Full standard library replacement for OCaml")
   (description
@@ -3978,9 +4052,9 @@ so they don't expose everything at toplevel.  For instance, @code{Ast_helper}
 is now @code{Ocaml_common.Ast_helper}.")
     (license license:expat)))
 
-(define-public ocaml-stdio
+(define-public ocaml4.07-stdio
   (package
-    (name "ocaml-stdio")
+    (name "ocaml4.07-stdio")
     (version "0.11.0")
     (home-page "https://github.com/janestreet/stdio")
     (source
@@ -3995,10 +4069,12 @@ is now @code{Ocaml_common.Ast_helper}.")
          "1facajqhvq34g2wrg368y0ajxd6lrj5b3lyzyj0jhdmraxajjcwn"))))
     (build-system dune-build-system)
     (propagated-inputs
-     `(("ocaml-base" ,ocaml-base)
-       ("ocaml-sexplib0" ,ocaml-sexplib0)))
+     `(("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-sexplib0" ,ocaml4.07-sexplib0)))
     (arguments
-     '(#:tests? #f)) ;no tests
+     `(#:tests? #f ;no tests
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (synopsis "Standard IO library for OCaml")
     (description
      "Stdio implements simple input/output functionalities for OCaml.  It
@@ -4033,9 +4109,9 @@ ppx_deriving and ppx_type_conv to inter-operate gracefully when linked
 as part of the same ocaml-migrate-parsetree driver.")
     (license license:bsd-3)))
 
-(define-public ocaml-ppxlib
+(define-public ocaml4.07-ppxlib
   (package
-    (name "ocaml-ppxlib")
+    (name "ocaml4.07-ppxlib")
     (version "0.6.0")
     (home-page "https://github.com/ocaml-ppx/ppxlib")
     (source
@@ -4050,15 +4126,16 @@ as part of the same ocaml-migrate-parsetree driver.")
          "0my9x7sxb329h0lzshppdaawiyfbaw6g5f41yiy7bhl071rnlvbv"))))
     (build-system dune-build-system)
     (propagated-inputs
-     `(("ocaml-base" ,ocaml-base)
-       ("ocaml-compiler-libs" ,ocaml-compiler-libs)
-       ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-       ("ocaml-ppx-derivers" ,ocaml-ppx-derivers)
-       ("ocaml-stdio" ,ocaml-stdio)
-       ("ocaml-result" ,ocaml-result)
-       ("ocaml-sexplib0" ,ocaml-sexplib0)))
+     `(("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-compiler-libs" ,(package-with-ocaml4.07 ocaml-compiler-libs))
+       ("ocaml-migrate-parsetree"
+        ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+       ("ocaml-ppx-derivers" ,(package-with-ocaml4.07 ocaml-ppx-derivers))
+       ("ocaml-stdio" ,ocaml4.07-stdio)
+       ("ocaml-result" ,(package-with-ocaml4.07 ocaml-result))
+       ("ocaml-sexplib0" ,ocaml4.07-sexplib0)))
     (arguments
-     '(#:phases
+     `(#:phases
        (modify-phases %standard-phases
          (add-before 'check 'set-topfind
            (lambda* (#:key inputs #:allow-other-keys)
@@ -4076,7 +4153,9 @@ as part of the same ocaml-migrate-parsetree driver.")
                  (("#use \"topfind\";;" all)
                   (string-append "#directory \"" findlib-libdir "\"\n"
                                  all))))
-             #t)))))
+             #t)))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (synopsis
      "Base library and tools for ppx rewriters")
     (description
@@ -4094,9 +4173,9 @@ OCaml AST in the OCaml syntax;
 @end itemize")
     (license license:expat)))
 
-(define-public ocaml-ppx-compare
+(define-public ocaml4.07-ppx-compare
   (package
-    (name "ocaml-ppx-compare")
+    (name "ocaml4.07-ppx-compare")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4109,9 +4188,13 @@ OCaml AST in the OCaml syntax;
                 "06bq4m1bsm4jlx4g7wh5m99qky7xm4c2g52kaz6pv25hdn5agi2m"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_compare")))
     (home-page "https://github.com/janestreet/ppx_compare")
     (synopsis "Generation of comparison functions from types")
@@ -4123,9 +4206,9 @@ flexibility by allowing you to override them for a specific type and more safety
 by making sure that you only compare comparable values.")
     (license license:asl2.0)))
 
-(define-public ocaml-fieldslib
+(define-public ocaml4.07-fieldslib
   (package
-    (name "ocaml-fieldslib")
+    (name "ocaml4.07-fieldslib")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4138,11 +4221,14 @@ by making sure that you only compare comparable values.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "fieldslib")))
     (home-page "https://github.com/janestreet/fieldslib")
     (synopsis "Syntax extension to record fields")
@@ -4151,9 +4237,9 @@ record fields, to get and set record fields, iterate and fold over all fields
 of a record and create new record values.")
     (license license:asl2.0)))
 
-(define-public ocaml-variantslib
+(define-public ocaml4.07-variantslib
   (package
-    (name "ocaml-variantslib")
+    (name "ocaml4.07-variantslib")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4166,11 +4252,14 @@ of a record and create new record values.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "variantslib")))
     (home-page "https://github.com/janestreet/variantslib")
     (synopsis "OCaml variants as first class values")
@@ -4178,9 +4267,9 @@ of a record and create new record values.")
 standard library.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-fields-conv
+(define-public ocaml4.07-ppx-fields-conv
   (package
-    (name "ocaml-ppx-fields-conv")
+    (name "ocaml4.07-ppx-fields-conv")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4192,10 +4281,14 @@ standard library.")
                 "07zrd3qky2ppbfl55gpm90rvqa5860xgwcsvihrjmkrw6d0jirkc"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-fieldslib" ,ocaml-fieldslib)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-fieldslib" ,ocaml4.07-fieldslib)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_fields_conv")))
     (home-page "https://github.com/janestreet/ppx_fields_conv")
     (synopsis "Generation of accessor and iteration functions for ocaml records")
@@ -4205,9 +4298,9 @@ and set record fields, iterate and fold over all fields of a record and create
 new record values.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-conv
+(define-public ocaml4.07-ppx-sexp-conv
   (package
-    (name "ocaml-ppx-sexp-conv")
+    (name "ocaml4.07-ppx-sexp-conv")
     (version "0.11.2")
     (source (origin
               (method git-fetch)
@@ -4220,9 +4313,13 @@ new record values.")
                 "0pqwnqy1xp309wvdcaax4lg02yk64lq2w03mbgfvf6ps5ry4gis9"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_sexp_conv")))
     (home-page "https://github.com/janestreet/ppx_sexp_conv")
     (synopsis "Generation of S-expression conversion functions from type definitions")
@@ -4230,9 +4327,9 @@ new record values.")
 definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-variants-conv
+(define-public ocaml4.07-ppx-variants-conv
   (package
-    (name "ocaml-ppx-variants-conv")
+    (name "ocaml4.07-ppx-variants-conv")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4245,10 +4342,14 @@ definitions.")
                 "1yc0gsds5m2nv39zga8nnrca2n75rkqy5dz4xj1635ybz20hhbjd"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-variantslib" ,ocaml-variantslib)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-variantslib" ,ocaml4.07-variantslib)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties
       `((upstream-name . "ppx_variants_conv")))
     (home-page
@@ -4259,9 +4360,9 @@ definitions.")
 variant types.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-custom-printf
+(define-public ocaml4.07-ppx-custom-printf
   (package
-    (name "ocaml-ppx-custom-printf")
+    (name "ocaml4.07-ppx-custom-printf")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4273,10 +4374,14 @@ variant types.")
                 "11b73smf3g3bpd9lg014pr4rx285nk9mnk6g6464ph51jv0sqzhj"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_custom_printf")))
     (home-page "https://github.com/janestreet/ppx_custom_printf")
     (synopsis "Printf-style format-strings for user-defined string conversion")
@@ -4284,9 +4389,9 @@ variant types.")
 string conversion.")
     (license license:asl2.0)))
 
-(define-public ocaml-bin-prot
+(define-public ocaml4.07-bin-prot
   (package
-    (name "ocaml-bin-prot")
+    (name "ocaml4.07-bin-prot")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4298,13 +4403,17 @@ string conversion.")
                 "1rsd91gx36prj4whi76nsiz1bzpgal9nzyw3pxdz1alv4ilk2il6"))))
     (build-system dune-build-system)
     (inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-compare" ,ocaml-ppx-compare)
-        ("ocaml-ppx-custom-printf" ,ocaml-ppx-custom-printf)
-        ("ocaml-ppx-fields-conv" ,ocaml-ppx-fields-conv)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-ppx-variants-conv" ,ocaml-ppx-variants-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-compare" ,ocaml4.07-ppx-compare)
+        ("ocaml-ppx-custom-printf" ,ocaml4.07-ppx-custom-printf)
+        ("ocaml-ppx-fields-conv" ,ocaml4.07-ppx-fields-conv)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-ppx-variants-conv" ,ocaml4.07-ppx-variants-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "bin_prot")))
     (home-page "https://github.com/janestreet/bin_prot")
     (synopsis "Binary protocol generator")
@@ -4338,9 +4447,9 @@ storage of large amounts of data.")
     (description "Octavius is a library to parse the `ocamldoc` comment syntax.")
     (license license:isc)))
 
-(define-public ocaml-ppx-hash
+(define-public ocaml4.07-ppx-hash
   (package
-    (name "ocaml-ppx-hash")
+    (name "ocaml4.07-ppx-hash")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4353,11 +4462,15 @@ storage of large amounts of data.")
                 "1p0ic6aijxlrdggpmycj12q3cy9xksbq2vq727215maz4snvlf5p"))))
     (build-system dune-build-system)
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-compare" ,ocaml-ppx-compare)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-compare" ,ocaml4.07-ppx-compare)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (properties `((upstream-name . "ppx_hash")))
     (home-page "https://github.com/janestreet/ppx_hash")
     (synopsis "Generation of hash functions from type expressions and definitions")
@@ -4365,9 +4478,9 @@ storage of large amounts of data.")
 hash functions from type exrpessions and definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-enumerate
+(define-public ocaml4.07-ppx-enumerate
   (package
-    (name "ocaml-ppx-enumerate")
+    (name "ocaml4.07-ppx-enumerate")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4380,11 +4493,14 @@ hash functions from type exrpessions and definitions.")
                 "0spx9k1v7vjjb6sigbfs69yndgq76v114jhxvzjmffw7q989cyhr"))))
     (build-system dune-build-system)
     (arguments
-     `(#:tests? #f))                    ; no test suite
+     `(#:tests? #f; no test suite
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_enumerate")))
     (home-page "https://github.com/janestreet/ppx_enumerate")
     (synopsis "Generate a list containing all values of a finite type")
@@ -4393,9 +4509,9 @@ for the list of all values of a type (for a type which only has finitely
 many values).")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-bench
+(define-public ocaml4.07-ppx-bench
   (package
-    (name "ocaml-ppx-bench")
+    (name "ocaml4.07-ppx-bench")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4408,20 +4524,23 @@ many values).")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-ppx-inline-test" ,ocaml-ppx-inline-test)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-ppx-inline-test" ,ocaml4.07-ppx-inline-test)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_bench")))
     (home-page "https://github.com/janestreet/ppx_bench")
     (synopsis "Syntax extension for writing in-line benchmarks in ocaml code")
     (description "Syntax extension for writing in-line benchmarks in ocaml code.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-here
+(define-public ocaml4.07-ppx-here
   (package
-    (name "ocaml-ppx-here")
+    (name "ocaml4.07-ppx-here")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4434,11 +4553,14 @@ many values).")
     (build-system dune-build-system)
     (arguments
      ;; broken tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_here")))
     (home-page "https://github.com/janestreet/ppx_here")
     (synopsis "Expands [%here] into its location")
@@ -4446,9 +4568,9 @@ many values).")
       "Part of the Jane Street's PPX rewriters collection.")
     (license license:asl2.0)))
 
-(define-public ocaml-typerep
+(define-public ocaml4.07-typerep
   (package
-    (name "ocaml-typerep")
+    (name "ocaml4.07-typerep")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4460,16 +4582,18 @@ many values).")
                 "1zi7hy0prpgzqhr4lkacr04wvlvbp21jfbdfvffhrm6cd400rb5v"))))
     (build-system dune-build-system)
     (arguments
-     `(#:tests? #f))
-    (propagated-inputs `(("ocaml-base" ,ocaml-base)))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
+    (propagated-inputs `(("ocaml-base" ,ocaml4.07-base)))
     (home-page "https://github.com/janestreet/typerep")
     (synopsis "Typerep is a library for runtime types")
     (description "Typerep is a library for runtime types.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-value
+(define-public ocaml4.07-ppx-sexp-value
   (package
-    (name "ocaml-ppx-sexp-value")
+    (name "ocaml4.07-ppx-sexp-value")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4480,12 +4604,16 @@ many values).")
                (base32
                 "1xnalfrln6k5khsyxvxkg6v32q8fpr4cqamsjqfih29jdv486xrs"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_sexp_value")))
     (home-page "https://github.com/janestreet/ppx_sexp_value")
     (synopsis "Simplify building s-expressions from ocaml values")
@@ -4493,9 +4621,9 @@ many values).")
 ocaml values.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-message
+(define-public ocaml4.07-ppx-sexp-message
   (package
-    (name "ocaml-ppx-sexp-message")
+    (name "ocaml4.07-ppx-sexp-message")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4506,12 +4634,16 @@ ocaml values.")
                (base32
                 "1yh440za0w9cvrbxbmqacir8715kdaw6sw24ys9xj80av9nqpiw7"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_sexp_message")))
     (home-page "https://github.com/janestreet/ppx_sexp_message")
     (synopsis "A ppx rewriter for easy construction of s-expressions")
@@ -4521,9 +4653,9 @@ where one needs to construct a s-expression based on various element of the
 context such as function arguments.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-pipebang
+(define-public ocaml4.07-ppx-pipebang
   (package
-    (name "ocaml-ppx-pipebang")
+    (name "ocaml4.07-ppx-pipebang")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4536,10 +4668,13 @@ context such as function arguments.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_pipebang")))
     (home-page "https://github.com/janestreet/ppx_pipebang")
     (synopsis "Inline reverse application operators `|>` and `|!`")
@@ -4547,9 +4682,9 @@ context such as function arguments.")
 @code{|>} and @code{|!}.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-optional
+(define-public ocaml4.07-ppx-optional
   (package
-    (name "ocaml-ppx-optional")
+    (name "ocaml4.07-ppx-optional")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4562,11 +4697,14 @@ context such as function arguments.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_optional")))
     (home-page "https://github.com/janestreet/ppx_optional")
     (synopsis "Pattern matching on flat options")
@@ -4575,9 +4713,9 @@ context such as function arguments.")
 else expression.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-optcomp
+(define-public ocaml4.07-ppx-optcomp
   (package
-    (name "ocaml-ppx-optcomp")
+    (name "ocaml4.07-ppx-optcomp")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4588,10 +4726,13 @@ else expression.")
                (base32
                 "1bb52p2j2h4s9f06vrcpla80rj93jinnzq6jzilapyx9q068929i"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-stdio" ,ocaml-stdio)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-stdio" ,ocaml4.07-stdio)
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_optcomp")))
     (home-page "https://github.com/janestreet/ppx_optcomp")
     (synopsis "Optional compilation for OCaml")
@@ -4600,9 +4741,9 @@ used to handle optional compilations of pieces of code depending of the word
 size, the version of the compiler, ...")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-let
+(define-public ocaml4.07-ppx-let
   (package
-    (name "ocaml-ppx-let")
+    (name "ocaml4.07-ppx-let")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4613,10 +4754,14 @@ size, the version of the compiler, ...")
                (base32
                 "1wdfw6w4xbg97a35yg6bif9gggxniy9ddnrjfw1a0inkl2yamxkj"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_let")))
     (home-page "https://github.com/janestreet/ppx_let")
     (synopsis "Monadic let-bindings")
@@ -4624,9 +4769,9 @@ size, the version of the compiler, ...")
 match expressions, and if expressions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-fail
+(define-public ocaml4.07-ppx-fail
   (package
-    (name "ocaml-ppx-fail")
+    (name "ocaml4.07-ppx-fail")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4637,11 +4782,15 @@ match expressions, and if expressions.")
                (base32
                 "07plqsvljiwvngggfypwq55g46s5my55y45mvlmalrxyppzr03s8"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_fail")))
     (home-page "https://github.com/janestreet/ppx_fail")
     (synopsis "Add location to calls to failwiths")
@@ -4649,9 +4798,9 @@ match expressions, and if expressions.")
 position.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-assert
+(define-public ocaml4.07-ppx-assert
   (package
-    (name "ocaml-ppx-assert")
+    (name "ocaml4.07-ppx-assert")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4662,13 +4811,17 @@ position.")
                (base32
                 "17kd311n0l9f72gblf9kv8i5rghr106w37x4f0m5qwh6nlgl0j9k"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-compare" ,ocaml-ppx-compare)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-compare" ,ocaml4.07-ppx-compare)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_assert")))
     (home-page "https://github.com/janestreet/ppx_assert")
     (synopsis "Assert-like extension nodes that raise useful errors on failure")
@@ -4676,9 +4829,9 @@ position.")
 useful errors on failure.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-expect
+(define-public ocaml4.07-ppx-expect
   (package
-    (name "ocaml-ppx-expect")
+    (name "ocaml4.07-ppx-expect")
     (version "0.12.0")
     (source (origin
               (method git-fetch)
@@ -4691,21 +4844,24 @@ useful errors on failure.")
                 "1wawsbjfkri4sw52n8xqrzihxc3xfpdicv3ahz83a1rsn4lb8j5q"))))
     (build-system dune-build-system)
     (arguments
-     `(#:jbuild? #t))
+     `(#:jbuild? #t
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-assert" ,ocaml-ppx-assert)
-        ("ocaml-ppx-compare" ,ocaml-ppx-compare)
-        ("ocaml-ppx-custom-printf" ,ocaml-ppx-custom-printf)
-        ("ocaml-ppx-fields-conv" ,ocaml-ppx-fields-conv)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-ppx-inline-test" ,ocaml-ppx-inline-test)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-ppx-variants-conv" ,ocaml-ppx-variants-conv)
-        ("ocaml-stdio" ,ocaml-stdio)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)
-        ("ocaml-re" ,ocaml-re)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-assert" ,ocaml4.07-ppx-assert)
+        ("ocaml-ppx-compare" ,ocaml4.07-ppx-compare)
+        ("ocaml-ppx-custom-printf" ,ocaml4.07-ppx-custom-printf)
+        ("ocaml-ppx-fields-conv" ,ocaml4.07-ppx-fields-conv)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-ppx-inline-test" ,ocaml4.07-ppx-inline-test)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-ppx-variants-conv" ,ocaml4.07-ppx-variants-conv)
+        ("ocaml-stdio" ,ocaml4.07-stdio)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)
+        ("ocaml-re" ,(package-with-ocaml4.07 ocaml-re))))
     (properties `((upstream-name . "ppx_expect")))
     (home-page "https://github.com/janestreet/ppx_expect")
     (synopsis "Cram like framework for OCaml")
@@ -4716,9 +4872,9 @@ output-generating code, interleaved with @code{%expect} extension expressions
 to denote the expected output.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-js-style
+(define-public ocaml4.07-ppx-js-style
   (package
-    (name "ocaml-ppx-js-style")
+    (name "ocaml4.07-ppx-js-style")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4731,12 +4887,15 @@ to denote the expected output.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-octavius" ,ocaml-octavius)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-octavius" ,(package-with-ocaml4.07 ocaml-octavius))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_js_style")))
     (home-page "https://github.com/janestreet/ppx_js_style")
     (synopsis "Code style checker for Jane Street Packages")
@@ -4745,9 +4904,9 @@ to denote the expected output.")
 packages.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-typerep-conv
+(define-public ocaml4.07-ppx-typerep-conv
   (package
-    (name "ocaml-ppx-typerep-conv")
+    (name "ocaml4.07-ppx-typerep-conv")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4760,12 +4919,15 @@ packages.")
                 "0a13dpfrrg0rsm8qni1bh7pqcda30l70z8r6yzi5a64bmwk7g5ah"))))
     (build-system dune-build-system)
     (arguments
-     `(#:test-target "."))
+     `(#:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-typerep" ,ocaml-typerep)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-typerep" ,ocaml4.07-typerep)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_typerep_conv")))
     (home-page "https://github.com/janestreet/ppx_typerep_conv")
     (synopsis "Generation of runtime types from type declarations")
@@ -4773,9 +4935,9 @@ packages.")
 from type definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-base
+(define-public ocaml4.07-ppx-base
   (package
-    (name "ocaml-ppx-base")
+    (name "ocaml4.07-ppx-base")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4787,15 +4949,18 @@ from type definitions.")
                 "0aq206pg330jmj7lhcagiiwm3a0b3gsqm801m8ajd4ysyw7idkym"))))
     (build-system dune-build-system)
     (arguments
-     `(#:test-target "."))
+     `(#:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-ppx-compare" ,ocaml-ppx-compare)
-        ("ocaml-ppx-enumerate" ,ocaml-ppx-enumerate)
-        ("ocaml-ppx-hash" ,ocaml-ppx-hash)
-        ("ocaml-ppx-js-style" ,ocaml-ppx-js-style)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-ppx-compare" ,ocaml4.07-ppx-compare)
+        ("ocaml-ppx-enumerate" ,ocaml4.07-ppx-enumerate)
+        ("ocaml-ppx-hash" ,ocaml4.07-ppx-hash)
+        ("ocaml-ppx-js-style" ,ocaml4.07-ppx-js-style)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_base")))
     (home-page "https://github.com/janestreet/ppx_base")
     (synopsis "Base set of ppx rewriters")
@@ -4805,9 +4970,9 @@ Note that Base doesn't need ppx to build, it is only used as a
 verification tool.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-bin-prot
+(define-public ocaml4.07-ppx-bin-prot
   (package
-    (name "ocaml-ppx-bin-prot")
+    (name "ocaml4.07-ppx-bin-prot")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -4821,13 +4986,16 @@ verification tool.")
     (build-system dune-build-system)
     (arguments
      ;; Cyclic dependency with ocaml-ppx-jane
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-bin-prot" ,ocaml-bin-prot)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-bin-prot" ,ocaml4.07-bin-prot)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_bin_prot")))
     (home-page "https://github.com/janestreet/ppx_bin_prot")
     (synopsis "Generation of bin_prot readers and writers from types")
@@ -4835,9 +5003,9 @@ verification tool.")
 functions from type definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-jane
+(define-public ocaml4.07-ppx-jane
   (package
-    (name "ocaml-ppx-jane")
+    (name "ocaml4.07-ppx-jane")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4849,28 +5017,31 @@ functions from type definitions.")
                 "0lgppkw3aixrfnixihrsz2ipafv8fpvkdpy3pw8n0r615gg8x8la"))))
     (build-system dune-build-system)
     (arguments
-     `(#:test-target "."))
+     `(#:test-target "."
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-ppx-assert" ,ocaml-ppx-assert)
-        ("ocaml-ppx-base" ,ocaml-ppx-base)
-        ("ocaml-ppx-bench" ,ocaml-ppx-bench)
-        ("ocaml-ppx-bin-prot" ,ocaml-ppx-bin-prot)
-        ("ocaml-ppx-custom-printf" ,ocaml-ppx-custom-printf)
-        ("ocaml-ppx-expect" ,ocaml-ppx-expect)
-        ("ocaml-ppx-fail" ,ocaml-ppx-fail)
-        ("ocaml-ppx-fields-conv" ,ocaml-ppx-fields-conv)
-        ("ocaml-ppx-here" ,ocaml-ppx-here)
-        ("ocaml-ppx-inline-test" ,ocaml-ppx-inline-test)
-        ("ocaml-ppx-let" ,ocaml-ppx-let)
-        ("ocaml-ppx-optcomp" ,ocaml-ppx-optcomp)
-        ("ocaml-ppx-optional" ,ocaml-ppx-optional)
-        ("ocaml-ppx-pipebang" ,ocaml-ppx-pipebang)
-        ("ocaml-ppx-sexp-message" ,ocaml-ppx-sexp-message)
-        ("ocaml-ppx-sexp-value" ,ocaml-ppx-sexp-value)
-        ("ocaml-ppx-typerep-conv" ,ocaml-ppx-typerep-conv)
-        ("ocaml-ppx-variants-conv" ,ocaml-ppx-variants-conv)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-ppx-assert" ,ocaml4.07-ppx-assert)
+        ("ocaml-ppx-base" ,ocaml4.07-ppx-base)
+        ("ocaml-ppx-bench" ,ocaml4.07-ppx-bench)
+        ("ocaml-ppx-bin-prot" ,ocaml4.07-ppx-bin-prot)
+        ("ocaml-ppx-custom-printf" ,ocaml4.07-ppx-custom-printf)
+        ("ocaml-ppx-expect" ,ocaml4.07-ppx-expect)
+        ("ocaml-ppx-fail" ,ocaml4.07-ppx-fail)
+        ("ocaml-ppx-fields-conv" ,ocaml4.07-ppx-fields-conv)
+        ("ocaml-ppx-here" ,ocaml4.07-ppx-here)
+        ("ocaml-ppx-inline-test" ,ocaml4.07-ppx-inline-test)
+        ("ocaml-ppx-let" ,ocaml4.07-ppx-let)
+        ("ocaml-ppx-optcomp" ,ocaml4.07-ppx-optcomp)
+        ("ocaml-ppx-optional" ,ocaml4.07-ppx-optional)
+        ("ocaml-ppx-pipebang" ,ocaml4.07-ppx-pipebang)
+        ("ocaml-ppx-sexp-message" ,ocaml4.07-ppx-sexp-message)
+        ("ocaml-ppx-sexp-value" ,ocaml4.07-ppx-sexp-value)
+        ("ocaml-ppx-typerep-conv" ,ocaml4.07-ppx-typerep-conv)
+        ("ocaml-ppx-variants-conv" ,ocaml4.07-ppx-variants-conv)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (properties `((upstream-name . "ppx_jane")))
     (home-page "https://github.com/janestreet/ppx_jane")
     (synopsis "Standard Jane Street ppx rewriters")
@@ -4878,9 +5049,9 @@ functions from type definitions.")
 driver including all standard Jane Street ppx rewriters.")
     (license license:asl2.0)))
 
-(define-public ocaml-splittable-random
+(define-public ocaml4.07-splittable-random
   (package
-    (name "ocaml-splittable-random")
+    (name "ocaml4.07-splittable-random")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4891,10 +5062,14 @@ driver including all standard Jane Street ppx rewriters.")
                (base32
                 "0l1wbd881mymlnpzlq5q53mmdz3g5d7qjhyc7lfaq1x0iaccn5lc"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-ppx-jane" ,ocaml-ppx-jane)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-ppx-jane" ,ocaml4.07-ppx-jane)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))))
     (properties `((upstream-name . "splittable_random")))
     (home-page "https://github.com/janestreet/splittable_random")
     (synopsis "PRNG that can be split into independent streams")
@@ -4928,9 +5103,9 @@ cryptographic-quality randomness in favor of performance.")
 various Jane Street packages.")
     (license license:asl2.0)))
 
-(define-public ocaml-configurator
+(define-public ocaml4.07-configurator
   (package
-    (name "ocaml-configurator")
+    (name "ocaml4.07-configurator")
     (version "0.11.0")
     (source (origin
               (method url-fetch)
@@ -4943,10 +5118,12 @@ various Jane Street packages.")
     (build-system dune-build-system)
     (arguments
      ;; No tests
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-stdio" ,ocaml-stdio)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-stdio" ,ocaml4.07-stdio)))
     (home-page "https://github.com/janestreet/configurator")
     (synopsis "Helper library for gathering system configuration")
     (description "Configurator is a small library that helps writing OCaml
@@ -4962,9 +5139,9 @@ Configurator allows one to:
 @end itemize")
     (license license:asl2.0)))
 
-(define-public ocaml-spawn
+(define-public ocaml4.07-spawn
   (package
-    (name "ocaml-spawn")
+    (name "ocaml4.07-spawn")
     (version "0.13.0")
     (source (origin
               (method git-fetch)
@@ -4984,9 +5161,11 @@ Configurator allows one to:
              (substitute* "test/tests.ml"
                (("/bin/pwd") (which "pwd"))
                (("/bin/echo") (which "echo")))
-             #t)))))
+             #t)))
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (native-inputs
-     `(("ocaml-ppx-expect" ,ocaml-ppx-expect)))
+     `(("ocaml-ppx-expect" ,ocaml4.07-ppx-expect)))
     (home-page "https://github.com/janestreet/spawn")
     (synopsis "Spawning sub-processes")
     (description
@@ -5008,9 +5187,9 @@ thousands of times faster than fork.
 @end itemize")
     (license license:asl2.0)))
 
-(define-public ocaml-core
+(define-public ocaml4.07-core
   (package
-    (name "ocaml-core")
+    (name "ocaml4.07-core")
     (version "0.11.3")
     (source (origin
               (method git-fetch)
@@ -5025,18 +5204,21 @@ thousands of times faster than fork.
     (arguments
      `(#:jbuild? #t
        ;; Require a cyclic dependency: core_extended
-       #:tests? #f))
+       #:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-configurator" ,ocaml-configurator)
-        ("ocaml-core-kernel" ,ocaml-core-kernel)
-        ("ocaml-ppx-assert" ,ocaml-ppx-assert)
-        ("ocaml-ppx-jane" ,ocaml-ppx-jane)
-        ("ocaml-sexplib" ,ocaml-sexplib)
-        ("ocaml-spawn" ,ocaml-spawn)
-        ("ocaml-stdio" ,ocaml-stdio)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
-        ("ocaml-ppxlib" ,ocaml-ppxlib)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-configurator" ,ocaml4.07-configurator)
+        ("ocaml-core-kernel" ,ocaml4.07-core-kernel)
+        ("ocaml-ppx-assert" ,ocaml4.07-ppx-assert)
+        ("ocaml-ppx-jane" ,ocaml4.07-ppx-jane)
+        ("ocaml-sexplib" ,ocaml4.07-sexplib)
+        ("ocaml-spawn" ,ocaml4.07-spawn)
+        ("ocaml-stdio" ,ocaml4.07-stdio)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))
+        ("ocaml-ppxlib" ,ocaml4.07-ppxlib)))
     (home-page "https://github.com/janestreet/core")
     (synopsis "Alternative to OCaml's standard library")
     (description "The Core suite of libraries is an alternative to OCaml's
@@ -5045,9 +5227,9 @@ standard library that was developed by Jane Street.")
     ;; by OCaml's license for consortium members (see THIRD-PARTY.txt).
     (license license:asl2.0)))
 
-(define-public ocaml-core-kernel
+(define-public ocaml4.07-core-kernel
   (package
-    (name "ocaml-core-kernel")
+    (name "ocaml4.07-core-kernel")
     (version "0.11.1")
     (source (origin
               (method git-fetch)
@@ -5061,26 +5243,30 @@ standard library that was developed by Jane Street.")
     (build-system dune-build-system)
     (arguments
      ;; Cyclic dependency with ocaml-core
-     `(#:tests? #f))
+     `(#:tests? #f
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib))
     (propagated-inputs
-      `(("ocaml-base" ,ocaml-base)
-        ("ocaml-bin-prot" ,ocaml-bin-prot)
-        ("ocaml-configurator" ,ocaml-configurator)
-        ("ocaml-fieldslib" ,ocaml-fieldslib)
-        ("ocaml-jane-street-headers" ,ocaml-jane-street-headers)
-        ("ocaml-ppx-assert" ,ocaml-ppx-assert)
-        ("ocaml-ppx-base" ,ocaml-ppx-base)
-        ("ocaml-ppx-hash" ,ocaml-ppx-hash)
-        ("ocaml-ppx-inline-test" ,ocaml-ppx-inline-test)
-        ("ocaml-ppx-jane" ,ocaml-ppx-jane)
-        ("ocaml-ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-        ("ocaml-ppx-sexp-message" ,ocaml-ppx-sexp-message)
-        ("ocaml-sexplib" ,ocaml-sexplib)
-        ("ocaml-splittable-random" ,ocaml-splittable-random)
-        ("ocaml-stdio" ,ocaml-stdio)
-        ("ocaml-typerep" ,ocaml-typerep)
-        ("ocaml-variantslib" ,ocaml-variantslib)
-        ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)))
+      `(("ocaml-base" ,ocaml4.07-base)
+        ("ocaml-bin-prot" ,ocaml4.07-bin-prot)
+        ("ocaml-configurator" ,ocaml4.07-configurator)
+        ("ocaml-fieldslib" ,ocaml4.07-fieldslib)
+        ("ocaml-jane-street-headers"
+         ,(package-with-ocaml4.07 ocaml-jane-street-headers))
+        ("ocaml-ppx-assert" ,ocaml4.07-ppx-assert)
+        ("ocaml-ppx-base" ,ocaml4.07-ppx-base)
+        ("ocaml-ppx-hash" ,ocaml4.07-ppx-hash)
+        ("ocaml-ppx-inline-test" ,ocaml4.07-ppx-inline-test)
+        ("ocaml-ppx-jane" ,ocaml4.07-ppx-jane)
+        ("ocaml-ppx-sexp-conv" ,ocaml4.07-ppx-sexp-conv)
+        ("ocaml-ppx-sexp-message" ,ocaml4.07-ppx-sexp-message)
+        ("ocaml-sexplib" ,ocaml4.07-sexplib)
+        ("ocaml-splittable-random" ,ocaml4.07-splittable-random)
+        ("ocaml-stdio" ,ocaml4.07-stdio)
+        ("ocaml-typerep" ,ocaml4.07-typerep)
+        ("ocaml-variantslib" ,ocaml4.07-variantslib)
+        ("ocaml-migrate-parsetree"
+         ,(package-with-ocaml4.07 ocaml-migrate-parsetree))))
     (properties `((upstream-name . "core_kernel")))
     (home-page "https://github.com/janestreet/core_kernel")
     (synopsis "Portable standard library for OCaml")
@@ -5220,9 +5406,9 @@ Usage is simple - add package bisect_ppx when building tests, run your tests,
 then run the Bisect_ppx report tool on the generated visitation files.")
     (license license:mpl2.0)))
 
-(define-public ocaml-odoc
+(define-public ocaml4.07-odoc
   (package
-    (name "ocaml-odoc")
+    (name "ocaml4.07-odoc")
     (version "1.4.2")
     (source
      (origin
@@ -5234,20 +5420,24 @@ then run the Bisect_ppx report tool on the generated visitation files.")
        (sha256
         (base32 "0rvhx139jx6wmlfz355mja6mk03x4swq1xxvk5ky6jzhalq3cf5i"))))
     (build-system dune-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib
+       #:dune ,ocaml4.07-dune))
     (inputs
-     `(("ocaml-alcotest" ,ocaml-alcotest)
-       ("ocaml-markup" ,ocaml-markup)
-       ("ocaml-sexplib" ,ocaml-sexplib)
-       ("ocaml-re" ,ocaml-re)
-       ("ocaml-uutf" ,ocaml-uutf)))
+     `(("ocaml-alcotest" ,(package-with-ocaml4.07 ocaml-alcotest))
+       ("ocaml-markup" ,(package-with-ocaml4.07 ocaml-markup))
+       ("ocaml-sexplib" ,ocaml4.07-sexplib)
+       ("ocaml-re" ,(package-with-ocaml4.07 ocaml-re))
+       ("ocaml-uutf" ,(package-with-ocaml4.07 ocaml-uutf))))
     (native-inputs
-     `(("ocaml-astring" ,ocaml-astring)
-       ("ocaml-cmdliner" ,ocaml-cmdliner)
-       ("ocaml-cppo" ,ocaml-cppo)
-       ("ocaml-fpath" ,ocaml-fpath)
-       ("ocaml-result" ,ocaml-result)
-       ("ocaml-tyxml" ,ocaml-tyxml)
-       ("ocaml-bisect-ppx" ,ocaml-bisect-ppx)))
+     `(("ocaml-astring" ,(package-with-ocaml4.07 ocaml-astring))
+       ("ocaml-cmdliner" ,(package-with-ocaml4.07 ocaml-cmdliner))
+       ("ocaml-cppo" ,(package-with-ocaml4.07 ocaml-cppo))
+       ("ocaml-fpath" ,(package-with-ocaml4.07 ocaml-fpath))
+       ("ocaml-result" ,(package-with-ocaml4.07 ocaml-result))
+       ("ocaml-tyxml" ,(package-with-ocaml4.07 ocaml-tyxml))
+       ("ocaml-bisect-ppx" ,(package-with-ocaml4.07 ocaml-bisect-ppx))))
     (home-page "https://github.com/ocaml/odoc")
     (synopsis "OCaml documentation generator")
     (description "Odoc is a documentation generator for OCaml.  It reads
@@ -5259,9 +5449,9 @@ advantage over ocamldoc is an accurate cross-referencer, which handles the
 complexity of the OCaml module system.")
     (license license:isc)))
 
-(define-public ocaml-fftw3
+(define-public ocaml4.07-fftw3
   (package
-    (name "ocaml-fftw3")
+    (name "ocaml4.07-fftw3")
     (version "0.8.4")
     (source
      (origin
@@ -5276,13 +5466,16 @@ complexity of the OCaml module system.")
     (build-system dune-build-system)
     (arguments
      `(#:tests? #t
-       #:test-target "tests"))
+       #:test-target "tests"
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib
+       #:dune ,ocaml4.07-dune))
     (propagated-inputs
      `(("fftw" ,fftw)
        ("fftwf" ,fftwf)))
     (native-inputs
-     `(("ocaml-cppo" ,ocaml-cppo)
-       ("ocaml-lacaml" ,ocaml-lacaml)))
+     `(("ocaml-cppo" ,(package-with-ocaml4.07 ocaml-cppo))
+       ("ocaml-lacaml" ,ocaml4.07-lacaml)))
     (home-page
      "https://github.com/Chris00/fftw-ocaml")
     (synopsis
@@ -5292,9 +5485,9 @@ complexity of the OCaml module system.")
 library FFTW.")
     (license license:lgpl2.1))) ; with static linking exception.
 
-(define-public ocaml-lacaml
+(define-public ocaml4.07-lacaml
   (package
-    (name "ocaml-lacaml")
+    (name "ocaml4.07-lacaml")
     (version "11.0.5")
     (source
      (origin
@@ -5308,12 +5501,15 @@ library FFTW.")
          "180yb79a3qgx067qcpm50q12hrimjygf06rgkzbish9d1zfm670c"))))
     (build-system dune-build-system)
     (arguments
-     `(#:tests? #f)) ; No test target.
+     `(#:tests? #f ; No test target.
+       #:ocaml ,ocaml-4.07
+       #:findlib ,ocaml4.07-findlib
+       #:dune ,ocaml4.07-dune))
     (native-inputs
      `(("openblas" ,openblas)
        ("lapack" ,lapack)
-       ("ocaml-base" ,ocaml-base)
-       ("ocaml-stdio" ,ocaml-stdio)))
+       ("ocaml-base" ,ocaml4.07-base)
+       ("ocaml-stdio" ,ocaml4.07-stdio)))
     (home-page "https://mmottl.github.io/lacaml/")
     (synopsis
      "OCaml-bindings to BLAS and LAPACK")
diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm
index eed0989452..8d74490d23 100644
--- a/gnu/packages/password-utils.scm
+++ b/gnu/packages/password-utils.scm
@@ -24,6 +24,7 @@
 ;;; Copyright © 2018, 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
 ;;; Copyright © 2019 Jens Mølgaard <jens@zete.tk>
 ;;; Copyright © 2019 Tanguy Le Carrour <tanguy@bioneland.org>
+;;; Copyright © 2020 Guillaume Le Vaillant <glv@posteo.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -56,6 +57,7 @@
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages crypto)
+  #:use-module (gnu packages cryptsetup)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages file)
   #:use-module (gnu packages freedesktop)
@@ -114,7 +116,7 @@ human.")
 (define-public keepassxc
   (package
     (name "keepassxc")
-    (version "2.5.2")
+    (version "2.5.3")
     (source
      (origin
        (method url-fetch)
@@ -122,7 +124,7 @@ human.")
                            "/releases/download/" version "/keepassxc-"
                            version "-src.tar.xz"))
        (sha256
-        (base32 "0lvwc3nxyz7d7vymb6cmgwxylb9g6gsjnq247vbh4lk1ifjir58j"))))
+        (base32 "1sx647mp1xikig50p9bb6vxv18ymdfj3wkxj6qfdr1zfcv7gn005"))))
     (build-system cmake-build-system)
     (arguments
      '(#:configure-flags '("-DWITH_XC_ALL=YES"
@@ -1066,3 +1068,30 @@ binaries.  All of these utils are designed to execute only one specific
 function.  Since they all work with @code{STDIN} and @code{STDOUT} you can
 group them into chains.")
     (license license:expat)))
+
+(define-public bruteforce-luks
+  (package
+    (name "bruteforce-luks")
+    (version "1.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/glv2/bruteforce-luks/releases/download/"
+                           version
+                           "/bruteforce-luks-"
+                           version
+                           ".tar.lz"))
+       (sha256
+        (base32 "0yawrlbbklhmvwr99wm7li3r0d5kxvpkwf33a12rji7z0ya5p340"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("lzip" ,lzip)))
+    (inputs
+     `(("cryptsetup" ,cryptsetup)))
+    (synopsis "LUKS encrypted volume cracker")
+    (description
+     "This is a cracker for LUKS encrypted volumes.  It can be used either in
+exhaustive mode to try every password given a charset or in dictionary mode to
+try every password contained in a file.")
+    (home-page "https://github.com/glv2/bruteforce-luks")
+    (license license:gpl3+)))
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index 237baa932c..ac8a6f46fc 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016, 2017, 2019, 2020 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -99,6 +99,11 @@ scientific data.")
               (modules '((guix build utils)))
               (snippet
                '(begin
+                  ;; Allow builds with Guile 3.0.
+                  (substitute* "configure"
+                    (("2\\.2 2\\.0")
+                     "3.0 2.2 2.0"))
+
                   ;; By default, .go files would be installed to
                   ;; $libdir/…/ccache instead of $libdir/…/site-ccache.  Fix
                   ;; that.
@@ -116,6 +121,13 @@ scientific data.")
 using the Cairo drawing library.")
     (license license:lgpl2.1+)))
 
+(define-public guile3.0-charting
+  (package
+    (inherit guile-charting)
+    (name "guile3.0-charting")
+    (inputs `(("guile" ,guile-3.0)))
+    (propagated-inputs `(("guile-cairo" ,guile3.0-cairo)))))
+
 (define-public ploticus
   (package
     (name "ploticus")
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 2af2b2011c..31aeffa161 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -68,6 +68,7 @@
 ;;; Copyright © 2019 Wiktor Żelazny <wzelazny@vurv.cz>
 ;;; Copyright © 2019 Tanguy Le Carrour <tanguy@bioneland.org>
 ;;; Copyright © 2019 Mădălin Ionel Patrașcu <madalinionel.patrascu@mdc-berlin.de>
+;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -17436,3 +17437,32 @@ Project, or not such a gitlab instance when your upstream doesn't use any
 dedicated platform.  The tool proposes a unified interface for any format and
 an upload option to send your work back to the platform.")
     (license license:gpl3+)))
+
+(define-public python-pypng
+  (package
+    (name "python-pypng")
+    (version "0.0.20")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pypng" version))
+       (sha256
+        (base32 "02qpa22ls41vwsrzw9r9qhj1nhq05p03hb5473pay6y980s86chh"))))
+    (build-system python-build-system)
+    (home-page "https://github.com/drj11/pypng")
+    (synopsis "Pure Python PNG image encoder/decoder")
+    (description
+     "The PyPNG module implements support for PNG images.  It reads and writes
+PNG files with all allowable bit depths (1/2/4/8/16/24/32/48/64 bits per
+pixel) and colour combinations: greyscale (1/2/4/8/16 bit); RGB, RGBA,
+LA (greyscale with alpha) with 8/16 bits per channel; colour mapped
+images (1/2/4/8 bit).  Adam7 interlacing is supported for reading and writing.
+A number of optional chunks can be specified (when writing) and
+understood (when reading): tRNS, bKGD, gAMA.
+
+PyPNG is not a high level toolkit for image processing (like PIL) and does not
+aim at being a replacement or competitor.  Its strength lies in fine-grained
+extensive support of PNG features.  It can also read and write Netpbm PAM
+files, with a focus on its use as an intermediate format for implementing
+custom PNG processing.")
+    (license license:expat)))
diff --git a/gnu/packages/rust-apps.scm b/gnu/packages/rust-apps.scm
index 8ad3c0ced4..90bd146442 100644
--- a/gnu/packages/rust-apps.scm
+++ b/gnu/packages/rust-apps.scm
@@ -143,21 +143,7 @@ gitignore rules.")
          (add-after 'configure 'unvendor-libraries-from-crates
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((openssl (assoc-ref inputs "openssl")))
-               (setenv "OPENSSL_DIR" openssl)
-               (setenv "LIBGIT2_SYS_USE_PKG_CONFIG" "1")
-               (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
-               (delete-file-recursively
-                 (string-append "guix-vendor/rust-libgit2-sys-"
-                                ,(package-version rust-libgit2-sys-0.10)
-                                ".crate/libgit2"))
-               (delete-file-recursively
-                 (string-append "guix-vendor/rust-libssh2-sys-"
-                                ,(package-version rust-libssh2-sys-0.2)
-                                ".crate/libssh2"))
-               (delete-file-recursively
-                 (string-append "guix-vendor/rust-libz-sys-"
-                                ,(package-version rust-libz-sys-1.0)
-                                ".crate/src/zlib")))
+               (setenv "OPENSSL_DIR" openssl))
              #t)))))
     (native-inputs
      `(("libgit2" ,libgit2)
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index b0da2ac36b..1009896a70 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2018 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2018, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
 ;;; Copyright © 2015, 2016 Federico Beffa <beffa@fbengineering.ch>
 ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
@@ -637,13 +637,10 @@ threads.")
                        ("source" ,source)
                        ("texinfo" ,texinfo)))
       (arguments
-       `(#:modules ((guix build utils)
-                    (srfi srfi-1)
-                    (srfi srfi-26))
+       `(#:modules ((guix build utils))
          #:builder
          (begin
            (use-modules (guix build utils)
-                        (srfi srfi-1)
                         (srfi srfi-26))
            (let ((gzip (assoc-ref %build-inputs "gzip"))
                  (source (assoc-ref %build-inputs "source"))
diff --git a/gnu/packages/skarnet.scm b/gnu/packages/skarnet.scm
index 3768695a8f..2db42240af 100644
--- a/gnu/packages/skarnet.scm
+++ b/gnu/packages/skarnet.scm
@@ -116,7 +116,7 @@ complexity.")))
    (inputs `(("skalibs" ,skalibs)
              ("execline" ,execline)))
    (arguments
-    '(#:configure-flags (list
+    `(#:configure-flags (list
                         (string-append "--with-lib="
                                        (assoc-ref %build-inputs "skalibs")
                                        "/lib/skalibs")
@@ -126,7 +126,15 @@ complexity.")))
                         (string-append "--with-sysdeps="
                                        (assoc-ref %build-inputs "skalibs")
                                        "/lib/skalibs/sysdeps"))
-      #:tests? #f))                    ; no tests exist
+      #:tests? #f                       ; no tests exist
+      #:phases
+      (modify-phases %standard-phases
+        (add-after 'install 'install-doc
+          (lambda* (#:key outputs #:allow-other-keys)
+            (let* ((out (assoc-ref outputs "out"))
+                   (doc (string-append out "/share/doc/s6-" ,version)))
+              (copy-recursively "doc" doc)
+              #t))))))
    (home-page "https://skarnet.org/software/s6")
    (license isc)
    (synopsis "Small suite of programs for process supervision")
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index ec2994dc33..172779035e 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -504,14 +504,14 @@ code for possible problems.")
 (define-public r-foreign
   (package
     (name "r-foreign")
-    (version "0.8-74")
+    (version "0.8-75")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "foreign" version))
        (sha256
         (base32
-         "047w772msiki85rxxhqkxya37gmw4331l32651rr09dl2vq02pgj"))))
+         "0g4mi101srjbl17ydb2hl3854m3xj0llj6861lfr30sp08nkqavl"))))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/foreign")
     (synopsis "Read data stored by other statistics software")
@@ -1400,13 +1400,13 @@ emitter (http://pyyaml.org/wiki/LibYAML) for R.")
 (define-public r-knitr
   (package
     (name "r-knitr")
-    (version "1.26")
+    (version "1.27")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "knitr" version))
               (sha256
                (base32
-                "08f3bdd5cnnbigybr9vmkhq12n64pbmn4layl3w5rwk8xi5kbnrq"))))
+                "02nysgnx6xv0kd351s1d59yx4g0drsd9lmcgxs0rsw5f1jiycgdg"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-evaluate" ,r-evaluate)
@@ -1607,13 +1607,13 @@ defined in different packages.")
 (define-public r-rlang
   (package
     (name "r-rlang")
-    (version "0.4.2")
+    (version "0.4.3")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "rlang" version))
               (sha256
                (base32
-                "0fczcp17kaz3s4p0nd4126bppwl20vpxfybhsndpcky9h75wklgv"))))
+                "0qsqfikbsj55x5brghnkzzp7pz0japr4xnzm993f668mlls3f6i4"))))
     (build-system r-build-system)
     (home-page "http://rlang.tidyverse.org")
     (synopsis "Functions for base types, core R and Tidyverse features")
@@ -2565,13 +2565,13 @@ well as additional utilities such as panel and axis annotation functions.")
 (define-public r-rcpparmadillo
   (package
     (name "r-rcpparmadillo")
-    (version "0.9.800.3.0")
+    (version "0.9.800.4.0")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "RcppArmadillo" version))
               (sha256
                (base32
-                "0kpcspg3mafi5kncjfhnbcwimvlf19jvrxilvhbpd20sap473mh3"))))
+                "1csh54v4d0ccwmk4bqj4rca1d5rqpafvb4459x3q6k9sys0charx"))))
     (properties `((upstream-name . "RcppArmadillo")))
     (build-system r-build-system)
     ;; All needed for vignettes
@@ -2617,13 +2617,13 @@ vectors.")
 (define-public r-catools
   (package
     (name "r-catools")
-    (version "1.17.1.4")
+    (version "1.18.0")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "caTools" version))
               (sha256
                (base32
-                "151vsfakg32jn9msfdjcizhizm8k8yxlfpnsbagns9ihr59s3w49"))))
+                "0y1kgyiy322yhb0phzwvf2zgjz9awp13lhzhk9v1ddg88656jhq3"))))
     (properties `((upstream-name . "caTools")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2663,13 +2663,13 @@ certain criterion, e.g., it contains a certain regular file.")
 (define-public r-rmarkdown
   (package
     (name "r-rmarkdown")
-    (version "2.0")
+    (version "2.1")
     (source
       (origin
         (method url-fetch)
         (uri (cran-uri "rmarkdown" version))
         (sha256
-          (base32 "1bm3n17wa0pf1cq7qmwhbnn02x2pld7zzmmzjcvwy6apanch9fl7"))))
+          (base32 "0pa5xs0vzwn9vsgysjqbks9v5lbqphxh5agciskllibc40hhwigg"))))
     (properties `((upstream-name . "rmarkdown")))
     (build-system r-build-system)
     (propagated-inputs
@@ -2755,17 +2755,16 @@ that package, other packages are unaffected.")
 (define-public r-blob
   (package
     (name "r-blob")
-    (version "1.2.0")
+    (version "1.2.1")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "blob" version))
               (sha256
                (base32
-                "08z071jzac4gasgfgab0y5g3ilfmlw08ln813wphxg07hsiczw8s"))))
+                "1slb5mvxfyi92i8ifx2qa31hp57inilwhq1g9lzvgha6jrxbqm7g"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-prettyunits" ,r-prettyunits)
-       ("r-rlang" ,r-rlang)
+     `(("r-rlang" ,r-rlang)
        ("r-vctrs" ,r-vctrs)))
     (home-page "https://github.com/hadley/blob")
     (synopsis "Simple S3 Class for representing vectors of binary data")
@@ -2850,13 +2849,13 @@ ldap, and also supports cookies, redirects, authentication, etc.")
 (define-public r-xml
   (package
     (name "r-xml")
-    (version "3.98-1.20")
+    (version "3.99-0.3")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "XML" version))
               (sha256
                (base32
-                "0n28m8iz1wfgixr7fjswl238c5w9kggsrw0c8hdzp859dqvqdbs6"))))
+                "0lzpqwajs5xaqdna50vl24qkp9xvh00zypjjzy6kgdzk11isgdw1"))))
     (properties
      `((upstream-name . "XML")))
     (build-system r-build-system)
@@ -3235,17 +3234,18 @@ path-wise fashion.")
 (define-public r-pkgmaker
   (package
     (name "r-pkgmaker")
-    (version "0.27")
+    (version "0.31")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "pkgmaker" version))
        (sha256
         (base32
-         "0spcamjncj78kzjps2rw4v1a4494yazv6xvhn0vmdflnypc8k8hp"))))
+         "0cc6v6kpwxwwh7k7zyw13wqdp0f9qzzr1a7vv02lskgii54aa4nb"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-bibtex" ,r-bibtex)
+     `(("r-assertthat" ,r-assertthat)
+       ("r-bibtex" ,r-bibtex)
        ("r-codetools" ,r-codetools)
        ("r-digest" ,r-digest)
        ("r-magrittr" ,r-magrittr)
@@ -3284,19 +3284,17 @@ package registries.")
 (define-public r-rngtools
   (package
     (name "r-rngtools")
-    (version "1.4")
+    (version "1.5")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "rngtools" version))
        (sha256
         (base32
-         "1kivj594bn774lbn29ws2rmzy2km99sza0j3jqvhal6hwmk27a9s"))))
+         "0xgmg3qb6insc157as47mcm9sdjdpy9jirh7w06bxb7pfcxqfx42"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-digest" ,r-digest)
-       ("r-pkgmaker" ,r-pkgmaker)
-       ("r-stringr" ,r-stringr)))
+     `(("r-digest" ,r-digest)))
     (home-page "https://renozao.github.io/rngtools")
     (synopsis "Utility functions for working with random number generators")
     (description
@@ -3714,14 +3712,14 @@ selection.")
 (define-public r-tidyr
   (package
     (name "r-tidyr")
-    (version "1.0.0")
+    (version "1.0.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "tidyr" version))
        (sha256
         (base32
-         "1403j0xd93l0r7qj738ryd5zc79hbcghrzybib3c3hrnaq5s78cj"))))
+         "0safj8bcf8libwr0jx4059bmarngvhfddrcv8k5iw39m9lpxs0r4"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-dplyr" ,r-dplyr)
@@ -4835,18 +4833,17 @@ analysis} (PCA) by projection pursuit.")
 (define-public r-rrcov
   (package
     (name "r-rrcov")
-    (version "1.4-9")
+    (version "1.5-2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "rrcov" version))
        (sha256
         (base32
-         "11zvxidlb1pr2j5dzvmbjqdgsmmicsq8ppjf5wcfykfyf2fkcmz7"))))
+         "0m62k58nabw7hjz1qyyf9a0d6lvcz5vcvpksjnq93zcfra9inr57"))))
     (build-system r-build-system)
     (propagated-inputs
-     `(("r-cluster" ,r-cluster)
-       ("r-lattice" ,r-lattice)
+     `(("r-lattice" ,r-lattice)
        ("r-mvtnorm" ,r-mvtnorm)
        ("r-pcapp" ,r-pcapp)
        ("r-robustbase" ,r-robustbase)))
@@ -4939,14 +4936,14 @@ of the points.")
 (define-public r-fpc
   (package
     (name "r-fpc")
-    (version "2.2-3")
+    (version "2.2-4")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "fpc" version))
        (sha256
         (base32
-         "1dy3pla4jjgs46izqg2kxajlxr80sbr9896jbzb1qszrdx7af041"))))
+         "1gsnl5sbdg86b2wdrsy6wq83xj6mrziiq7rxa8cqksgljc7gp6yf"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-class" ,r-class)
diff --git a/gnu/packages/terminals.scm b/gnu/packages/terminals.scm
index b5c3b69f53..dae14aee8f 100644
--- a/gnu/packages/terminals.scm
+++ b/gnu/packages/terminals.scm
@@ -17,6 +17,7 @@
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2019 Pierre Langlois <pierre.langlois@gmx.com>
 ;;; Copyright © 2019 Brett Gilio <brettg@gnu.org>
+;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -138,6 +139,11 @@ configurable through a graphical wizard.")
     (arguments
       `(#:phases
         (modify-phases %standard-phases
+          (add-after 'unpack 'patch-xdg-open
+            (lambda _
+              (substitute* "termite.cc"
+                (("xdg-open") (which "xdg-open")))
+              #t))
           (delete 'configure))
         #:tests? #f
         ;; This sets the destination when installing the necessary terminal
@@ -150,6 +156,7 @@ configurable through a graphical wizard.")
     (inputs
      `(("vte" ,vte-ng)
        ("gtk+" ,gtk+)
+       ("xdg-utils" ,xdg-utils)
        ("ncurses" ,ncurses)))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/text-editors.scm b/gnu/packages/text-editors.scm
index 922de86eb1..7806a4c8b2 100644
--- a/gnu/packages/text-editors.scm
+++ b/gnu/packages/text-editors.scm
@@ -468,7 +468,7 @@ environment with Markdown markup.")
 (define-public manuskript
   (package
     (name "manuskript")
-    (version "0.10.0")
+    (version "0.11.0")
     (source
      (origin
        (method git-fetch)
@@ -477,7 +477,7 @@ environment with Markdown markup.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0q413vym7hzjpyg3krj5y63hwpncdifjkyswqmr76zg5yqnklnh3"))))
+        (base32 "1l6l9k6k69yv8xqpll0zv9cwdqqg4zvxy90l6sx5nv2yywh5crla"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f                      ;no test
diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index ece880f2f2..079c5550b6 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -122,15 +122,15 @@ in intelligent transportation networks.")
 (define-public p11-kit
   (package
     (name "p11-kit")
-    (version "0.23.18.1")
+    (version "0.23.19")
     (source
      (origin
       (method url-fetch)
       (uri (string-append "https://github.com/p11-glue/p11-kit/releases/"
-                          "download/" version "/p11-kit-" version ".tar.gz"))
+                          "download/" version "/p11-kit-" version ".tar.xz"))
       (sha256
        (base32
-        "0vrwab1082f7l5sbzpb28nrs3q4d2q7wzbi8c977rpah026bvhrl"))))
+        "1w7i4f5lc8darjkfjsm1ldvhkv0x29mvwg89klmh5kb2xqf6x4wi"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
@@ -858,7 +858,7 @@ then ported to the GNU / Linux environment.")
 (define-public mbedtls-apache
   (package
     (name "mbedtls-apache")
-    (version "2.16.3")
+    (version "2.16.4")
     (source
      (origin
        (method url-fetch)
@@ -868,11 +868,12 @@ then ported to the GNU / Linux environment.")
                            version "-apache.tgz"))
        (sha256
         (base32
-         "0qd65lnr63vmx2gxla6lcmm5gawlnaj4wy4h4vmdc3h9h9nyw6zc"))))
+         "1yxj5wahaj87xhdi89zbk78ig77b166h464yrj5gb3lwv8mz6h9l"))))
     (build-system cmake-build-system)
     (arguments
      `(#:configure-flags
-       (list "-DUSE_SHARED_MBEDTLS_LIBRARY=ON")))
+       (list "-DUSE_SHARED_MBEDTLS_LIBRARY=ON"
+             "-DUSE_STATIC_MBEDTLS_LIBRARY=OFF")))
     (native-inputs
      `(("perl" ,perl)
        ("python" ,python)))
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index b5952e3e21..f130ae4392 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -938,3 +938,37 @@ through its msgpack-rpc API.")
 
 (define-public python2-pynvim
   (package-with-python2 python-pynvim))
+
+(define-public vim-guix-vim
+  (package
+    (name "vim-guix-vim")
+    (version "0.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                     (url "https://gitlab.com/Efraim/guix.vim")
+                     (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1f8h8m96fqh3f9hy87spgh9kdqzyxl11n9s3rywvyq5xhn489bnk"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (delete 'build)
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (vimfiles (string-append out "/share/vim/vimfiles")))
+               (for-each
+                 (lambda (dir)
+                   (copy-recursively dir (string-append vimfiles "/" dir)))
+                 '("compiler" "doc" "indent" "ftdetect" "ftplugin" "syntax"))
+               #t))))))
+    (home-page "https://gitlab.com/Efraim/guix.vim")
+    (synopsis "Guix integration in Vim")
+    (description "This package provides support for GNU Guix in Vim.")
+    (license license:vim)))
diff --git a/gnu/services/xorg.scm b/gnu/services/xorg.scm
index 9c84f7413f..73a32e4b02 100644
--- a/gnu/services/xorg.scm
+++ b/gnu/services/xorg.scm
@@ -862,7 +862,12 @@ the GNOME desktop environment.")
                    "#TimedLoginEnable=false\n"
                    "#TimedLogin=\n"
                    "#TimedLoginDelay=0\n"
-                   "#InitialSetupEnable=true\n"
+                   ;; Disable initial system setup inside GDM.
+                   ;; Whatever settings are set there should already be
+                   ;; taken care of through `guix system'.
+                   ;; See also
+                   ;; <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39281>.
+                   "InitialSetupEnable=false\n"
                    ;; Enable me once X is working.
                    "WaylandEnable=false\n"
                    "\n"
diff --git a/guix/build-system/ocaml.scm b/guix/build-system/ocaml.scm
index de3e71a5aa..c5996bf0cf 100644
--- a/guix/build-system/ocaml.scm
+++ b/guix/build-system/ocaml.scm
@@ -92,7 +92,11 @@
   (let ((module (resolve-interface '(gnu packages ocaml))))
     (module-ref module 'ocaml4.07-findlib)))
 
-(define* (package-with-explicit-ocaml ocaml findlib old-prefix new-prefix
+(define (default-ocaml4.07-dune)
+  (let ((module (resolve-interface '(gnu packages ocaml))))
+    (module-ref module 'ocaml4.07-dune)))
+
+(define* (package-with-explicit-ocaml ocaml findlib dune old-prefix new-prefix
                                        #:key variant-property)
   "Return a procedure of one argument, P.  The procedure creates a package
 with the same fields as P, which is assumed to use OCAML-BUILD-SYSTEM, such
@@ -100,6 +104,10 @@ that it is compiled with OCAML and FINDLIB instead.  The inputs are changed
 recursively accordingly.  If the name of P starts with OLD-PREFIX, this is
 replaced by NEW-PREFIX; otherwise, NEW-PREFIX is prepended to the name.
 
+When the package uses the DUNE-BUILD-SYSTEM, the procedure creates a package
+with the same fields as P, such that it is compiled with OCAML, FINDLIB and DUNE
+instead.
+
 When VARIANT-PROPERTY is present, it is used as a key to search for
 pre-defined variants of this transformation recorded in the 'properties' field
 of packages.  The property value must be the promise of a package.  This is a
@@ -132,10 +140,15 @@ pre-defined variants."
                                    name))))
         (arguments
          (let ((ocaml   (if (promise? ocaml) (force ocaml) ocaml))
-               (findlib (if (promise? findlib) (force findlib) findlib)))
+               (findlib (if (promise? findlib) (force findlib) findlib))
+               (dune (if (promise? dune) (force dune) dune)))
            (ensure-keyword-arguments (package-arguments p)
                                      `(#:ocaml   ,ocaml
-                                       #:findlib ,findlib))))))
+                                       #:findlib ,findlib
+                                       ,@(if (eq? (package-build-system p)
+                                                  (default-dune-build-system))
+                                             `(#:dune ,dune)
+                                             '())))))))
      (else p)))
 
   (define (cut? p)
@@ -148,6 +161,7 @@ pre-defined variants."
 (define package-with-ocaml4.07
   (package-with-explicit-ocaml (delay (default-ocaml4.07))
                                (delay (default-ocaml4.07-findlib))
+                               (delay (default-ocaml4.07-dune))
                                "ocaml-" "ocaml4.07-"
                                #:variant-property 'ocaml4.07-variant))
 
diff --git a/guix/build/cargo-build-system.scm b/guix/build/cargo-build-system.scm
index 8a8d74ee1b..0721989589 100644
--- a/guix/build/cargo-build-system.scm
+++ b/guix/build/cargo-build-system.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
-;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -58,7 +58,7 @@
 (define (crate-src? path)
   "Check if PATH refers to a crate source, namely a gzipped tarball with a
 Cargo.toml file present at its root."
-    (and (gzip-file? path)
+    (and (not (directory-exists? path)) ; not a tarball
          ;; First we print out all file names within the tarball to see if it
          ;; looks like the source of a crate. However, the tarball will include
          ;; an extra path component which we would like to ignore (since we're
@@ -119,6 +119,8 @@ directory = '" port)
   ;; upgrading the compiler for example.
   (setenv "RUSTFLAGS" "--cap-lints allow")
   (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+  (setenv "LIBGIT2_SYS_USE_PKG_CONFIG" "1")
+  (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
 
   ;; We don't use the Cargo.lock file to determine the package versions we use
   ;; during building, and in any case if one is not present it is created
diff --git a/guix/licenses.scm b/guix/licenses.scm
index 41d4fefad2..a44a5bac0d 100644
--- a/guix/licenses.scm
+++ b/guix/licenses.scm
@@ -286,7 +286,7 @@ at URI, which may be a file:// URI pointing the package's tree."
 
 (define giftware
   (license "Giftware"
-           "http://liballeg.org/license.html"
+           "https://liballeg.org/license.html"
            "The Allegro 4 license"))
 
 (define gpl1