gnu: ocaml: Update to 4.7.0.

Update ocaml to the latest version and fixes dependent packages by
updating them or by adding new inputs, such as ocaml-num and ocamlbuild,
that were removed from the core ocaml package. Rename packages that
cannot be built with the new compiler with an ocaml4.02 prefix. Add
ocaml4.02 dependencies.

* gnu/packages/ocaml.scm (ocaml): Update to 4.7.0.
(ocaml-4.02, ocamlbuild, camlp4-4.02, ocaml-num, ocaml4.02-menhir)
(ocaml4.02-lablgtk, ocaml4.02-findlib, ocaml4.02-ounit, ocaml4.02-camlzip)
(ocaml4.02-ocamlmod, ocaml4.02-zarith, ocaml4.02-qcheck, ocaml4.02-qtest)
(ocaml4.02-stringext, ocaml4.02-bisect, dune, ocaml-migrate-parsetree)
(ocaml-ppx-tools-versioned, ocaml-ppx-tools-versioned)
(ocaml4.02-bitstring, ocaml4.02-result, ocaml4.02-topkg, ocaml4.02-rresult)
(ocaml4.02-sqlite3, ocaml4.02-csv, ocaml4.02-mtime, ocaml4.02-cmdliner)
(ocaml4.02-fmt, ocaml4.02-astring, ocaml4.02-alcotest, ocaml4.02-ppx-tools)
(ocaml4.02-react, ocaml4.02-ssl, ocaml4.02-lwt, ocaml-lwt-log)
(ocaml4.02-lwt-log, ocaml4.02-logs, ocaml4.02-fpath, ocaml4.02-bos)
(ocaml4.02-xmlm, ocaml4.02-ulex, ocaml4.02-uchar, ocaml4.02-uutf)
(ocaml4.02-jsonm, ocaml4.02-ocurl, ocaml4.02-base64, ocaml4.02-omake)
(ocaml4.02-batteries, ocaml4.02-pcre, ocaml4.02-oasis)
(ocaml4.02-js-build-tools, ocaml4.02-cppo, ocaml-seq, ocaml4.02-seq)
(ocaml4.02-re, ocaml4.02-ocplib-endian, ocaml4.02-easy-format)
(ocaml4.02-piqilib, ocaml4.02-uuidm, ocaml4.02-graph, ocaml4.02-piqi)
(ocaml4.02-camomile, ocaml4.02-zed, ocaml4.02-lambda-term): New packages.
(opam): Update to 2.0.0.
(camlp4): Update to 4.07+1.
(camlp5): Update to 7.06.
(hevea): Update to 2.32.
(coq)[inputs]: Add ocaml-num.
(emacs-tuareg): Update to 2.2.0.
(ocaml-menhir)[native-inputs]: Add ocamlbuild.
(ocaml-lablgtk): Update to 2.18.6.
(unison)[inputs]: Use ocaml-4.02.
(ocaml-findlib): Update to 1.8.0.
(ocaml-ounit)[native-inputs]: Add ocamlbuild.
(ocamlmod): Update to 0.0.9.
(ocaml-frontc)[arguments]: Use ocaml-4.02.
(ocaml-qcheck)[native-inputs]: Add ocamlbuild.
(ocaml-qtest)[native-inputs]: Remove ocaml-findlib and add ocamlbuild.
(ocaml-stringext)[native-inputs]: Add ocamlbuild.
(ocaml-bisect): Update to 1.3.1.
(ocaml4.01-bisect): Downgrade to 1.3.
(ocaml-bitstring): Update to 3.1.0.
(ocaml-topkg)[native-inputs]: Add ocamlbuild.
(ocaml-rresult)[native-inputs]: Add ocamlbuild.
(ocaml-sqlite3)[native-inputs]: Add ocamlbuild.
(ocaml-csv)[native-inputs]: Add ocamlbuild.
(ocaml-mtime)[native-inputs]: Add ocamlbuild.
(ocaml-cmdliner)[native-inputs]: Add ocamlbuild.
(ocaml-fmt)[native-inputs]: Add ocamlbuild.
(ocaml-astring)[native-inputs]: Add ocamlbuild.
(ocaml-alcotest)[native-inputs]: Add ocamlbuild.
(ocaml-ppx-tools)[native-inputs]: Add ocamlbuild.
(ocaml-react)[native-inputs]: Add ocamlbuild.
(ocaml-ssl)[arguments]: Return #t in phases.
(ocaml-lwt): Update to 4.1.0.
(ocaml-logs)[native-inputs]: Add ocamlbuild.
(ocaml-fpath)[native-inputs]: Add ocamlbuild.
(ocaml-bos)[native-inputs]: Add ocamlbuild.
(ocaml-xmlm): Update to 1.3.0.
(ocaml-ulex): Update to 1.2.0.
(ocaml-uchar)[native-inputs]: Add ocamlbuild.
(ocaml-uutf): Update to 1.0.1.
(ocaml-jsonm): Update to 1.0.1.
(ocaml-ocurl): Update to 0.8.2.
(ocaml-base64)[native-inputs]: Add ocamlbuild.
(ocamlify)[native-inputs]: Use ocaml-4.02.
(omake): Update to 0.10.3.
(ocaml-batteries): Update to 2.9.0.
(ocaml-pcre)[native-inputs]: Add ocamlbuild.
(ocaml-expect): Update 0.0.6.
(ocaml4.02-fileutils): Update to 0.5.3.
(ocaml-oasis): Update 0.4.11.
(ocaml-js-build-tools)[native-inputs]: Add ocamlbuild.
(ocaml-bin-prot): Rename to ocaml4.02-bin-prot.
(ocaml-fieldslib): Rename to ocaml4.02-fieldslib.
(ocaml-ppx-core): Rename to ocaml4.02-ppx-core.
(ocaml-ppx-optcomp): Rename to ocaml4.02-ppx-optcomp.
(ocaml-ppx-driver): Rename to ocaml4.02-ppx-driver.
(ocaml-cppo): Update to 1.6.5.
(ocaml-ppx-deriving): Rename to ocaml4.02-ppx-deriving.
(ocaml-ppx-type-conv): Rename to ocaml4.02-ppx-type-conv.
(ocaml-ppx-inline-test): Rename to ocaml4.02-ppx-inline-test.
(ocaml-ppx-bench): Rename to ocaml4.02-ppx-bench.
(ocaml-ppx-compare): Rename to ocaml4.02-ppx-compare.
(ocaml-sexplib): Rename to ocaml4.02-sexplib.
(ocaml-typerep): Rename to ocaml4.02-typerep.
(ocaml-variantslib): Rename to ocaml4.02-variantslib.
(ocaml-ppx-sexp-conv): Rename to ocaml4.02-ppx-sexp-conv.
(ocaml-ppx-variants-conv): Rename to ocaml4.02-ppx-variants-conv.
(ocaml-ppx-here): Rename to ocaml4.02-ppx-here.
(ocaml-ppx-assert): Rename to ocaml4.02-ppx-assert.
(ocaml-ppx-enumerate): Rename to ocaml4.02-ppx-enumerate.
(ocaml-ppx-let): Rename to ocaml4.02-ppx-let.
(ocaml-ppx-typerep-conv): Rename to ocaml4.02-ppx-typerep-conv.
(ocaml-ppx-sexp-value): Rename to ocaml4.02-ppx-sexp-value.
(ocaml-ppx-pipebang): Rename to ocaml4.02-ppx-pipebang.
(ocaml-ppx-bin-prot): Rename to ocaml4.02-ppx-bin-prot.
(ocaml-ppx-fail): Rename to ocaml4.02-ppx-fail.
(ocaml-ppx-custom-printf): Rename to ocaml4.02-ppx-custom-printf.
(ocaml-ppx-sexp-message): Rename to ocaml4.02-ppx-sexp-message.
(ocaml-ppx-fields-conv): Rename to ocaml4.02-ppx-fields-conv.
(ocaml-re): Update to 1.8.0.
(ocaml-ppx-expect): Rename to ocaml4.02-ppx-expect.
(ocaml-ppx-jane): Rename to ocaml4.02-ppx-jane.
(ocaml-core-kernel): Rename to ocaml4.02-core-kernel.
(ocaml-async-kernel): Rename to ocaml4.02-async-kernel.
(ocaml-async-rpc-kernel): Rename to ocaml4.02-async-rpc-kernel.
(ocaml-core): Rename to ocaml4.02-core.
(ocaml-async-unix): Rename to ocaml4.02-async-unix.
(ocaml-async-extra): Rename to ocaml4.02-async-extra.
(ocaml-async): Rename to ocaml4.02-async.
(ocaml-ocplib-endian)[native-inputs]: Update to 1.0.
(ocaml-cstruct): Rename to ocaml4.02-cstruct.
(ocaml-hex): Rename to ocaml4.02-hex.
(ocaml-ezjsonm): Rename to ocaml4.02-ezjsonm.
(ocaml-uri): Rename to ocaml4.02-uri.
(optcomp): Use ocaml-4.02.
(ocaml-piqilib): Update to 0.6.14.
(ocaml-uuidm)[native-inputs]: Add ocamlbuild.
(ocaml-graph): Update to 1.8.8.
(ocaml-piqi): Update to 0.7.6.
(bap): Update to 1.3.0.
(ocaml-camomile): Update to 1.0.1.
(ocaml-jbuilder): Use ocaml-4.02.
(ocaml-lambda-term): Update to 1.13.
(ocaml-utop): Update to 2.2.0.
(ocaml-integers)[native-inputs]: Add ocamlbuild.
(ocaml-ctypes): Update to 0.14.0.
(ocaml-ocb-stubblr)[native-inputs]: Add ocamlbuild.
(ocaml-tsdl)[native-inputs]: Add ocamlbuild.
* gnu/packages/machine-learning.scm (ocaml-mcl): Use ocaml-4.02.
* gnu/packages/maths.scm (cubicle): Update to 1.1.2.
* gnu/packages/patches/ocaml-bisect-fix-camlp4-in-another-directory.patch:
Update patch.
* guix/build-system/ocaml.scm: (default-ocaml4.02, default-ocaml4.02-findlib)
(package-with-ocaml4.02, strip-ocaml4.02-variant): New variables.

5 files changed, 1893 insertions, 740 deletions

diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index 990a6c771a..09c525ff20 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -8,6 +8,7 @@
 ;;; Copyright © 2018 Mark Meyer <mark@ofosos.org>
 ;;; Copyright © 2018 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2018 Fis Trivial <ybbs.daans@hotmail.com>
+;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -300,7 +301,9 @@ networks) based on simulation of (stochastic) flow in graphs.")
          "1l5jbhwjpsj38x8b9698hfpkv75h8hn3kj0gihjhn8ym2cwwv110"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:phases
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'patch-paths
            (lambda _
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 05570789a0..82abc22994 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -28,6 +28,7 @@
 ;;; Copyright © 2018 Adam Massmann <massmannak@gmail.com>
 ;;; Copyright © 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2018 Eric Brown <brown@fastmail.com>
+;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -3988,37 +3989,52 @@ theories} (SMT) solver.  It provides a C/C++ API, as well as Python bindings.")
 (define-public cubicle
   (package
     (name "cubicle")
-    (version "1.1.1")
+    (version "1.1.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://cubicle.lri.fr/cubicle-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1sny9c4fm14k014pk62ibpwbrjjirkx8xmhs9jg7q1hk7y7x3q2h"))))
+                "10kk80jdmpdvql88sdjsh7vqzlpaphd8vip2lp47aarxjkwjlz1q"))))
     (build-system gnu-build-system)
     (native-inputs
-     `(("ocaml" ,ocaml)
+     `(("automake" ,automake)
+       ("ocaml" ,ocaml)
        ("which" ,(@@ (gnu packages base) which))))
     (propagated-inputs
-     `(("z3" ,z3)))
+     `(("ocaml-num" ,ocaml-num)
+       ("z3" ,z3)))
     (arguments
      `(#:configure-flags (list "--with-z3")
+       #:make-flags (list "QUIET=")
        #:tests? #f
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'configure-for-release
            (lambda _
              (substitute* "Makefile.in"
-               (("SVNREV=") "#SVNREV="))))
+               (("SVNREV=") "#SVNREV="))
+             #t))
          (add-before 'configure 'fix-/bin/sh
            (lambda _
              (substitute* "configure"
-               (("/bin/sh") (which "sh")))))
+               (("-/bin/sh") (string-append "-" (which "sh"))))
+             #t))
          (add-before 'configure 'fix-smt-z3wrapper.ml
            (lambda _
              (substitute* "Makefile.in"
-               (("\\\\n") "")))))))
+               (("\\\\n") ""))
+             #t))
+         (add-before 'configure 'fix-ocaml-num
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "Makefile.in"
+               (("= \\$\\(FUNCTORYLIB\\)")
+                (string-append "= -I "
+                               (assoc-ref inputs "ocaml-num")
+                               "/lib/ocaml/site-lib"
+                               " $(FUNCTORYLIB)")))
+             #t)))))
     (home-page "http://cubicle.lri.fr/")
     (synopsis "Model checker for array-based systems")
     (description "Cubicle is a model checker for verifying safety properties
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 6b55e84fed..e1323582a2 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -6,7 +6,7 @@
 ;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2016, 2018 Efraim Flashner <efraim@flashner.co.il>
-;;; Copyright © 2016, 2017 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2016-2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2018 Peter Kreye <kreyepr@gmail.com>
@@ -120,7 +120,7 @@
                          "/lib/ocaml/site-lib"))
     #:phases (modify-phases %standard-phases (delete 'configure))))
 
-(define-public ocaml
+(define-public ocaml-4.02
   (package
     (name "ocaml")
     (version "4.02.3")
@@ -145,7 +145,8 @@
             (files (list "lib/ocaml" "lib/ocaml/site-lib")))
            (search-path-specification
             (variable "CAML_LD_LIBRARY_PATH")
-            (files (list "lib/ocaml/site-lib/stubslibs")))))
+            (files (list "lib/ocaml/site-lib/stubslibs"
+                         "lib/ocaml/site-lib/stublibs")))))
     (native-inputs
      `(("perl" ,perl)
        ("pkg-config" ,pkg-config)))
@@ -228,7 +229,7 @@ functional, imperative and object-oriented styles of programming.")
 
 (define-public ocaml-4.01
   (package
-    (inherit ocaml)
+    (inherit ocaml-4.02)
     (version "4.01.0")
     (source (origin
               (method url-fetch)
@@ -240,7 +241,7 @@ functional, imperative and object-oriented styles of programming.")
                (base32
                 "03d7ida94s1gpr3gadf4jyhmh5rrszd5s4m4z59daaib25rvfyv7"))))
     (arguments
-     (substitute-keyword-arguments (package-arguments ocaml)
+     (substitute-keyword-arguments (package-arguments ocaml-4.02)
        ((#:phases phases)
         `(modify-phases ,phases
            (replace 'build
@@ -256,10 +257,78 @@ functional, imperative and object-oriented styles of programming.")
                          (string-append
                           "TOPDIR=" (getcwd) "/.."))))))))))))
 
+(define-public ocaml-4.07
+  (package
+    (inherit ocaml-4.02)
+    (version "4.07.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://caml.inria.fr/pub/distrib/ocaml-"
+                    (version-major+minor version)
+                    "/ocaml-" version ".tar.xz"))
+              (sha256
+               (base32
+                "03wzkzv6w4rdiiva20g5amz0n4x75swpjl8d80468p6zm8hgfnzl"))))
+    (arguments
+     (substitute-keyword-arguments (package-arguments ocaml-4.02)
+       ((#:phases phases)
+        `(modify-phases ,phases
+           (delete 'prepare-socket-test)
+           (replace 'check
+             (lambda _
+               (with-directory-excursion "testsuite"
+                 (invoke "make" "all"))
+               #t))))))))
+
+(define-public ocaml ocaml-4.07)
+
+(define-public ocamlbuild
+	  (package
+	    (name "ocamlbuild")
+	    (version "0.13.1")
+	    (source (origin
+	              (method url-fetch)
+	              (uri (string-append "https://github.com/ocaml/ocamlbuild/archive/"
+	                                  version ".tar.gz"))
+	              (file-name (string-append name "-" version ".tar.gz"))
+	              (sha256
+	               (base32
+	                "1320cfkixs1xlng5av04pa5qjb3ynvi2kl3k1ngqzg5fpi29b0vr"))))
+	    (build-system gnu-build-system)
+	    (arguments
+	     `(#:test-target "test"
+	       #:tests? #f; tests require findlib
+	       #:make-flags
+	       (list (string-append "OCAMLBUILD_PREFIX=" (assoc-ref %outputs "out"))
+	             (string-append "OCAMLBUILD_BINDIR=" (assoc-ref %outputs "out")
+                                "/bin")
+	             (string-append "OCAMLBUILD_LIBDIR=" (assoc-ref %outputs "out")
+                                "/lib/ocaml/site-lib")
+	             (string-append "OCAMLBUILD_MANDIR=" (assoc-ref %outputs "out")
+                                "/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)))
+	    (home-page "https://github.com/ocaml/ocamlbuild")
+	    (synopsis "OCaml build tool")
+	    (description "OCamlbuild is a generic build tool, that has built-in rules
+	for building OCaml library and programs.")
+	    (license license:lgpl2.1+)))
+
 (define-public opam
   (package
     (name "opam")
-    (version "1.2.2")
+    (version "2.0.0")
     (source (origin
               (method url-fetch)
               ;; Use the '-full' version, which includes all the dependencies.
@@ -271,7 +340,7 @@ functional, imperative and object-oriented styles of programming.")
                )
               (sha256
                (base32
-                "004gwn6rbpcb53y3rpb3v23vk39rp2xmf0liyd5iy12ij8bigrhm"))))
+                "09gdpxiqmyr6z78l85d7pwhiwrycdi2xi1b2mafqr1sk9z5lzbcx"))))
     (build-system gnu-build-system)
     (arguments
      '(;; Sometimes, 'make -jX' would fail right after ./configure with
@@ -321,7 +390,7 @@ Git-friendly development workflow.")
     ;; The 'LICENSE' file waives some requirements compared to LGPLv3.
     (license license:lgpl3)))
 
-(define-public camlp4
+(define-public camlp4-4.02
   (package
     (name "camlp4")
     (version "4.02+6")
@@ -334,9 +403,9 @@ Git-friendly development workflow.")
                 "0icdfzhsbgf89925gc8gl3fm8z2xzszzlib0v9dj5wyzkyv3a342"))
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system gnu-build-system)
-    (native-inputs `(("ocaml" ,ocaml)
+    (native-inputs `(("ocaml" ,ocaml-4.02)
                      ("which" ,which)))
-    (inputs `(("ocaml" ,ocaml)))
+    (inputs `(("ocaml" ,ocaml-4.02)))
     (arguments
      '(#:tests? #f                                ;no documented test target
        ;; a race-condition will lead byte and native targets to  mkdir _build
@@ -377,17 +446,42 @@ syntax of OCaml.")
     ;; against the library to be released under any terms.
     (license license:lgpl2.0)))
 
+(define-public camlp4-4.07
+  (package
+    (inherit camlp4-4.02)
+    (name "camlp4")
+    (version "4.07+1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml/camlp4/archive/"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "143hhxv1i6aq413z0i1pynrjcfl2g5gnh5r3863v6h9z0riqknzc"))
+              (file-name (string-append name "-" version ".tar.gz"))))
+    (properties
+     `((ocaml4.02-variant . ,(delay camlp4-4.02))))
+    (native-inputs
+     `(("ocaml" ,ocaml-4.07)
+       ("ocamlbuild" ,ocamlbuild)
+       ("which" ,which)))
+    (inputs
+     `(("ocaml" ,ocaml-4.07)))))
+
+(define-public camlp4 camlp4-4.07)
+
 (define-public camlp5
   (package
     (name "camlp5")
-    (version "6.14")
+    (version "7.06")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://camlp5.gforge.inria.fr/distrib/src/"
-                                  name "-" version ".tgz"))
+              (uri (string-append "https://github.com/camlp5/camlp5/archive/rel"
+                                  (string-delete #\. version) ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1ql04iyvclpyy9805kpddc4ndjb5d0qg4shhi2fc6bixi49fvy89"))))
+                "08kr0h2rq3jh3kzqh5f6pr589bqw3y76z8k59ad2kdh50fjgp8xy"))))
     (build-system gnu-build-system)
     (inputs
      `(("ocaml" ,ocaml)))
@@ -404,6 +498,11 @@ syntax of OCaml.")
                       (invoke "./configure"
                               "--prefix" out
                               "--mandir" mandir))))
+         (add-before 'build 'fix-/bin-references
+           (lambda _
+             (substitute* "config/Makefile"
+               (("/bin/rm") "rm"))
+             #t))
          (replace 'build
                   (lambda _
                     (invoke "make" "-j" (number->string
@@ -427,17 +526,19 @@ concrete syntax of the language (Quotations, Syntax Extensions).")
 (define-public hevea
   (package
     (name "hevea")
-    (version "2.28")
+    (version "2.32")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://hevea.inria.fr/old/"
                                   name "-" version ".tar.gz"))
               (sha256
                (base32
-                "14fns13wlnpiv9i05841kvi3cq4b9v2sw5x3ff6ziws28q701qnd"))))
+                "1s4yqphfcr1pf5mcj5c84mvmd107k525iiym5jdwsxz0ka0ccmfy"))))
     (build-system gnu-build-system)
     (inputs
      `(("ocaml" ,ocaml)))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)))
     (arguments
      `(#:tests? #f  ; no test suite
        #:make-flags (list (string-append "PREFIX=" %output))
@@ -455,6 +556,50 @@ concrete syntax of the language (Quotations, Syntax Extensions).")
 written in Objective Caml.")
     (license license:qpl)))
 
+(define-public ocaml-num
+  (package
+    (name "ocaml-num")
+    (version "1.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml/num/archive/v"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1xlkd0svc0mgq5s7nrm2rjrsvg15i9wxqkc1kvwjp6sv8vv8bb04"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (add-before 'build 'fix-makefile
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; This package supposes we install to the same directory as
+             ;; the ocaml package.
+             (substitute* "src/META"
+               (("\"\\^\"") (string-append "\"" (assoc-ref outputs "out")
+                                           "/lib/ocaml/site-lib\"")))
+             (substitute* "src/Makefile"
+               (("\\) \\$\\(STDLIBDIR\\)")
+                (string-append ") " (assoc-ref outputs "out")
+                               "/lib/ocaml/site-lib")))
+             #t))
+         (add-after 'install 'fix-stubslib
+           (lambda* (#:key outputs #:allow-other-keys)
+             (format #t "~a~%" (find-files "." ".*.so"))
+             (let ((stubdir (string-append (assoc-ref outputs "out")
+                                           "/lib/ocaml/site-lib")))
+               (mkdir-p stubdir)
+               (install-file "src/dllnums.so" stubdir))
+             #t)))))
+    (home-page "https://github.com/ocaml/num")
+    (synopsis "Arbitrary-precision integer and rational arithmetic")
+    (description "OCaml-Num contains the legacy Num library for
+arbitrary-precision integer and rational arithmetic that used to be part of
+the OCaml core distribution.")
+    (license license:lgpl2.1+))); with linking exception
+
 (define-public coq
   (package
     (name "coq")
@@ -478,7 +623,8 @@ written in Objective Caml.")
     (inputs
      `(("lablgtk" ,lablgtk)
        ("python" ,python-2)
-       ("camlp5" ,camlp5)))
+       ("camlp5" ,camlp5)
+       ("ocaml-num" ,ocaml-num)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
@@ -598,7 +744,7 @@ provers.")
 (define-public emacs-tuareg
   (package
     (name "emacs-tuareg")
-    (version "2.0.10")
+    (version "2.2.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/ocaml/tuareg/archive/"
@@ -606,7 +752,7 @@ provers.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1r2smclcs63n74lcyckbp90j09wyjdngn816cqzfkw54iwh3hd7q"))))
+                "1ynpfc170f9jqx49biji9npfkvfpflbm29xf24wc7fnxxayr49ig"))))
     (build-system gnu-build-system)
     (native-inputs `(("emacs" ,emacs-minimal)
                      ("opam" ,opam)))
@@ -650,6 +796,8 @@ Emacs.")
     (build-system gnu-build-system)
     (inputs
      `(("ocaml" ,ocaml)))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)))
     (arguments
      `(#:parallel-build? #f ; Parallel build causes failure
        #:tests? #f ; No check target
@@ -660,6 +808,8 @@ Emacs.")
              (let ((out (assoc-ref outputs "out")))
                (setenv "PREFIX" out))
              #t)))))
+    (properties
+     `((ocaml4.02-variant . ,(delay ocaml4.02-menhir))))
     (home-page "http://gallium.inria.fr/~fpottier/menhir")
     (synopsis "Parser generator")
     (description "Menhir is a parser generator.  It turns high-level grammar
@@ -671,17 +821,26 @@ Knuth’s LR(1) parser construction technique.")
     ;; are QPL licensed.
     (license (list license:gpl2+ license:qpl))))
 
+(define-public ocaml4.02-menhir
+  (package
+    (inherit ocaml-menhir)
+    (name "ocaml4.02-menhir")
+    (inputs `(("ocaml" ,ocaml-4.02)))
+    (native-inputs '())))
+
 (define-public lablgtk
   (package
     (name "lablgtk")
-    (version "2.18.5")
+    (version "2.18.6")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri name version 1627))
+              (uri (ocaml-forge-uri name version 1726))
               (sha256
                (base32
-                "0cyj6sfdvzx8hw7553lhgwc0krlgvlza0ph3dk9gsxy047dm3wib"))))
+                "1y38fdvswy6hmppm65qvgdk4pb3ghhnvz7n4ialf46340r1s5p2d"))))
     (build-system gnu-build-system)
+    (properties
+     `((ocaml4.02-variant . ,(delay ocaml4.02-lablgtk))))
     (native-inputs
      `(("camlp4" ,camlp4)
        ("ocaml" ,ocaml)
@@ -732,6 +891,23 @@ libglade (and it an generate OCaml code from .glade files),
 libpanel, librsvg and quartz.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.02-lablgtk
+  (package
+    (inherit lablgtk)
+    (name "ocaml4.02-lablgtk")
+    (version "2.18.5")
+    (source (origin
+              (method url-fetch)
+              (uri (ocaml-forge-uri name version 1627))
+              (sha256
+               (base32
+                "0cyj6sfdvzx8hw7553lhgwc0krlgvlza0ph3dk9gsxy047dm3wib"))))
+    (native-inputs
+     `(("camlp4" ,camlp4-4.02)
+       ("ocaml" ,ocaml-4.02)
+       ("findlib" ,ocaml4.02-findlib)
+       ("pkg-config" ,pkg-config)))))
+
 (define-public unison
   (package
     (name "unison")
@@ -792,12 +968,13 @@ libpanel, librsvg and quartz.")
     (outputs '("out"
                "doc"))                  ; 1.9 MiB of documentation
     (native-inputs
-     `(("ocaml" ,ocaml)
+     `(("ocaml" ,ocaml-4.02)
        ;; For documentation
        ("ghostscript" ,ghostscript)
        ("texlive" ,texlive)
        ("hevea" ,hevea)
-       ("lynx" ,lynx)))
+       ("lynx" ,lynx)
+       ("which" ,which)))
     (arguments
      `(#:parallel-build? #f
        #:parallel-tests? #f
@@ -827,6 +1004,14 @@ libpanel, librsvg and quartz.")
                (let ((doc (string-append (assoc-ref outputs "doc")
                                          "/share/doc/unison")))
                  (mkdir-p doc)
+                 ;; This is a workaround to prevent a build failure. Running
+                 ;; make docs somehow allows it to pass, but the generated
+                 ;; documentation is not pretty.
+                 (catch #t
+                   (lambda _
+                     (invoke "make" "docs"
+                             "TEXDIRECTIVES=\\\\draftfalse"))
+                   (lambda _ #t))
                  ;; This file needs write-permissions, because it's
                  ;; overwritten by 'docs' during documentation generation.
                  (chmod "src/strings.ml" #o600)
@@ -856,14 +1041,14 @@ to the other.")
 (define-public ocaml-findlib
   (package
     (name "ocaml-findlib")
-    (version "1.7.3")
+    (version "1.8.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://download.camlcity.org/download/"
                                   "findlib" "-" version ".tar.gz"))
               (sha256
                (base32
-                "12xx8si1qv3xz90qsrpazjjk4lc1989fzm97rsmc4diwla7n15ni"))))
+                "1b97zqjdriqd2ikgh4rmqajgxwdwn013riji5j53y3xvcmnpsyrb"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("camlp4" ,camlp4)
@@ -912,6 +1097,15 @@ compilation and linkage, there are new frontends of the various OCaml
 compilers that can directly deal with packages.")
     (license license:x11)))
 
+(define-public ocaml4.02-findlib
+  (package
+    (inherit ocaml-findlib)
+    (name "ocaml4.02-findlib")
+    (native-inputs
+     `(("camlp4" ,camlp4-4.02)
+       ("m4" ,m4)
+       ("ocaml" ,ocaml-4.02)))))
+
 (define-public ocaml4.01-findlib
   (package
     (inherit ocaml-findlib)
@@ -933,7 +1127,8 @@ compilers that can directly deal with packages.")
                 "03ifp9hjcxg4m5j190iy373jcn4039d3vy10kmd8p4lfciwzwc1f"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("libxml2" ,libxml2)))           ; for xmllint
+     `(("libxml2" ,libxml2)           ; for xmllint
+       ("ocamlbuild" ,ocamlbuild)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
@@ -947,6 +1142,9 @@ other XUnit testing frameworks.")
 (define-public ocaml4.01-ounit
   (package-with-ocaml4.01 ocaml-ounit))
 
+(define-public ocaml4.02-ounit
+  (package-with-ocaml4.02 ocaml-ounit))
+
 (define-public camlzip
   (package
     (name "camlzip")
@@ -1007,19 +1205,23 @@ files in these formats.")
           (base32
            "0syh72jk9s0qwjmmfrkqchaj98m020ii082jn38pwnmb6v3p02wk")))))))
 
+(define-public ocaml4.02-camlzip
+  (package-with-ocaml4.02 camlzip))
+
 (define-public ocamlmod
   (package
     (name "ocamlmod")
-    (version "0.0.8")
+    (version "0.0.9")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri name version 1544))
+              (uri (ocaml-forge-uri name version 1702))
               (sha256
                (base32
-                "1w0w8lfyymvk300dv13gvhrddpcyknvyp4g2yvq2vaw7khkhjs9g"))))
+                "0cgp9qqrq7ayyhddrmqmq1affvfqcn722qiakjq4dkywvp67h4aa"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("ounit" ,ocaml-ounit)))
+     `(("ounit" ,ocaml-ounit)
+       ("ocamlbuild" ,ocamlbuild)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
@@ -1030,6 +1232,9 @@ files in these formats.")
     (description "Generate modules from OCaml source files.")
     (license license:lgpl2.1+))) ; with an exception
 
+(define-public ocaml4.02-ocamlmod
+  (package-with-ocaml4.02 ocamlmod))
+
 (define-public ocaml-zarith
   (package
     (name "ocaml-zarith")
@@ -1060,6 +1265,9 @@ over big integers. Small integers are represented as Caml unboxed integers,
 for speed and space economy.")
     (license license:lgpl2.1+))) ; with an exception
 
+(define-public ocaml4.02-zarith
+  (package-with-ocaml4.02 ocaml-zarith))
+
 (define-public ocaml-frontc
   (package
     (name "ocaml-frontc")
@@ -1073,7 +1281,9 @@ for speed and space economy.")
                 "16dz153s92dgbw1rrfwbhscy73did87kfmjwyh3qpvs748h1sc4g"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:phases
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:phases
        (modify-phases %standard-phases
          (delete 'configure)
          (add-after 'install 'install-meta
@@ -1116,7 +1326,8 @@ GNU CC attributes.  It provides also a C pretty printer as an example of use.")
                 "1zs1pg5cb1iry554v3cdmmiglsrwmsqa9x8zxmzb118fnk5d3ha6"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("ounit" ,ocaml-ounit)))
+     `(("ounit" ,ocaml-ounit)
+       ("ocamlbuild" ,ocamlbuild)))
     (home-page "https://github.com/c-cube/qcheck")
     (synopsis "QuickCheck inspired property-based testing for OCaml")
     (description "QuickCheck inspired property-based testing for OCaml. This
@@ -1125,6 +1336,9 @@ generated instances of the type. It provides combinators for generating
 instances and printing them.")
     (license license:lgpl3+)))
 
+(define-public ocaml4.02-qcheck
+  (package-with-ocaml4.02 ocaml-qcheck))
+
 (define-public ocaml-qtest
   (package
     (name "ocaml-qtest")
@@ -1139,7 +1353,7 @@ instances and printing them.")
                 "1ff4if64mc9c7wmhjdgnlnh6k6a713piqzr4043zzj4s5pw7smxk"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("findlib" ,ocaml-findlib)))
+     `(("ocamlbuild" ,ocamlbuild)))
     (propagated-inputs
      `(("ounit" ,ocaml-ounit)
        ("qcheck" ,ocaml-qcheck)))
@@ -1161,6 +1375,9 @@ to use -- to sophisticated random generation of test cases.")
 (define-public ocaml4.01-qtest
   (package-with-ocaml4.01 ocaml-qtest))
 
+(define-public ocaml4.02-qtest
+  (package-with-ocaml4.02 ocaml-qtest))
+
 (define-public ocaml-stringext
   (package
     (name "ocaml-stringext")
@@ -1175,7 +1392,8 @@ to use -- to sophisticated random generation of test cases.")
                 "19g6lfn03iki9f8h91hi0yiqn0b3wkxyq08b3y23wgv6jw6mssfh"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("qtest" ,ocaml-qtest)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("qtest" ,ocaml-qtest)))
     (home-page "https://github.com/rgrinberg/stringext")
     (synopsis "Extra string functions for OCaml")
     (description "Provides a single module named Stringext that provides a grab
@@ -1185,17 +1403,21 @@ full_split, cut, rcut, etc..")
     ;; where it says `mit'.
     (license license:expat)))
 
+(define-public ocaml4.02-stringext
+  (package-with-ocaml4.02 ocaml-stringext))
 
 (define-public ocaml-bisect
   (package
     (name "ocaml-bisect")
-    (version "1.3")
+    (version "1.3.1")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri "bisect" version 1051))
+              (uri (string-append "https://github.com/gasche/bisect/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0kcg2rh0qlkfpbv3nhcb75n62b04gbrz0zasq15ynln91zd5qrg0"))
+                "0p67fppk5ifb63b00kxwrb1xg75hrqhknng3bsdyw3gxxqyjlpmx"))
               (patches
                (search-patches
                 "ocaml-bisect-fix-camlp4-in-another-directory.patch"))))
@@ -1203,6 +1425,7 @@ full_split, cut, rcut, etc..")
     (native-inputs
      `(("camlp4" ,camlp4)
        ("libxml2" ,libxml2)
+       ("ocamlbuild" ,ocamlbuild)
        ("which" ,which)))
     (propagated-inputs
      `(("camlp4" ,camlp4)))
@@ -1215,9 +1438,11 @@ full_split, cut, rcut, etc..")
        #:phases
        (modify-phases %standard-phases
          (replace 'configure
-           (lambda* (#:key outputs #:allow-other-keys)
-             (zero? (system* "./configure" "-prefix"
-                             (assoc-ref outputs "out"))))))))
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (invoke "./configure" "-prefix" (assoc-ref outputs "out")
+                     "-ocaml-prefix" (assoc-ref inputs "ocaml")
+                     "-camlp4-prefix" (assoc-ref inputs "camlp4"))
+             #t)))))
     (home-page "http://bisect.x9c.fr")
     (synopsis "Code coverage tool for the OCaml language")
     (description "Bisect is a code coverage tool for the OCaml language.  It is
@@ -1225,46 +1450,260 @@ a camlp4-based tool that allows to instrument your application before running
 tests.  After application execution, it is possible to generate a report in HTML
 format that is the replica of the application source code annotated with code
 coverage information.")
-    (properties `((ocaml4.01-variant . ,(delay ocaml4.01-bisect))))
+    (properties
+     `((ocaml4.01-variant . ,(delay ocaml4.01-bisect))
+       (ocaml4.02-variant . ,(delay ocaml4.02-bisect))))
     (license license:gpl3+)))
 
 (define-public ocaml4.01-bisect
   (let ((base (package-with-ocaml4.01 (strip-ocaml4.01-variant ocaml-bisect))))
     (package
       (inherit base)
+      (version "1.3")
+      (source (origin
+                (method url-fetch)
+                (uri (string-append "https://github.com/gasche/bisect/archive/"
+                                    version ".tar.gz"))
+                (file-name (string-append "ocaml-bisect-" version ".tar.gz"))
+                (sha256
+                 (base32
+                  "1ip49jqf0kkbrqf8qspmfjbg9ap9fhvjkg718myzix88dg5rv8d4"))))
       (arguments
        `(#:ocaml ,ocaml-4.01
-         ;; Camlp4 is included with OCaml 4.01, so do not include it as a
-         ;; separate input.
-         ,@(strip-keyword-arguments '(#:make-flags) (package-arguments base))))
+         ,@(substitute-keyword-arguments (package-arguments ocaml-bisect)
+            ((#:make-flags flags)
+             `(list "all"))
+            ((#:phases phases)
+             `(modify-phases ,phases
+                (replace 'configure
+                  (lambda* (#:key inputs outputs #:allow-other-keys)
+                    (invoke "./configure"
+                            "-ocaml-prefix" (assoc-ref inputs "ocaml"))
+                    #t)))))))
       (native-inputs `(,@(alist-delete "camlp4" (package-native-inputs base))))
       (propagated-inputs
        `(,@(alist-delete "camlp4" (package-propagated-inputs base)))))))
 
+(define-public ocaml4.02-bisect
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-bisect))))
+    (package
+      (inherit base)
+      (native-inputs
+       `(("camlp4" ,camlp4-4.02)
+         ("libxml2" ,libxml2)
+         ("which" ,which)))
+      (propagated-inputs
+       `(("camlp4" ,camlp4-4.02))))))
+
+(define-public dune
+  (package
+    (name "dune")
+    (version "1.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml/dune/releases/"
+                                  "download/" version "/dune-" version ".tbz"))
+              (sha256
+               (base32
+                "00c5dbm4hkdapc2i7pg07b2lj8sv6ly38qr7zid58cdmbmzq21z9"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f; require odoc
+       #:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'configure
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "./configure")
+             #t)))))
+    (home-page "https://github.com/ocaml/dune")
+    (synopsis "OCaml build system")
+    (description "Dune is a build system that was designed to simplify the
+release of Jane Street packages.  It reads metadata from @file{dune} files
+following a very simple s-expression syntax.")
+    (license license:expat)))
+
+(define-public ocaml-migrate-parsetree
+  (package
+    (name "ocaml-migrate-parsetree")
+    (version "1.1.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml-ppx/"
+                                  "ocaml-migrate-parsetree/releases/download/v"
+                                  version "/ocaml-migrate-parsetree-"
+                                  version ".tbz"))
+              (sha256
+               (base32
+                "01zjp1q4hryqaxv4apkjd868fycz2kf887r6lkb6x2a545h1lh7f"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "jbuilder" "build" "@install")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "jbuilder" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (propagated-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("ocaml-result" ,ocaml-result)))
+    (native-inputs
+     `(("dune" ,dune)))
+    (home-page "https://github.com/ocaml-ppx/ocaml-migrate-parsetree")
+    (synopsis "OCaml parsetree convertor")
+    (description "This library converts between parsetrees of different OCaml
+versions.  For each version, there is a snapshot of the parsetree and conversion
+functions to the next and/or previous version.")
+    (license license:lgpl2.1+)))
+ 
+(define-public ocaml-ppx-tools-versioned
+  (package
+    (name "ocaml-ppx-tools-versioned")
+    (version "5.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml-ppx/"
+                                  "ppx_tools_versioned/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1x2xfjpkzbcz4rza1d7gh3ipliw6jqfcklbsln82v3561qgkqgmh"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "dune" "build" "@install")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (native-inputs
+     `(("dune" ,dune)))
+    (propagated-inputs
+     `(("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)))
+    (home-page "https://github.com/let-def/ppx_tools_versioned")
+    (synopsis "Variant of ppx_tools")
+    (description "This package is a variant of ppx_tools based on
+ocaml-migrate-parsetree")
+    (license license:expat)))
+
+(define-public ocaml-ppx-tools-versioned
+  (package
+    (name "ocaml-ppx-tools-versioned")
+    (version "5.2.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/ocaml-ppx/"
+                                  "ppx_tools_versioned/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1x2xfjpkzbcz4rza1d7gh3ipliw6jqfcklbsln82v3561qgkqgmh"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "dune" "build" "@install")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (native-inputs
+     `(("dune" ,dune)))
+    (propagated-inputs
+     `(("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)))
+    (home-page "https://github.com/let-def/ppx_tools_versioned")
+    (synopsis "Variant of ppx_tools")
+    (description "This package is a variant of ppx_tools based on
+ocaml-migrate-parsetree")
+    (license license:expat)))
+
 (define-public ocaml-bitstring
   (package
     (name "ocaml-bitstring")
-    (version "2.1.1")
+    (version "3.1.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append "https://github.com/xguerin/bitstring"
-                                  "/archive/v" version ".tar.gz"))
+              (uri (string-append "https://bitbucket.org/thanatonauts/bitstring/"
+                                  "get/v" version ".tar.gz"))
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0vy8ibrxccii1jbsk5q6yh1kxjigqvi7lhhcmizvd5gfhf7mfyc8"))
-              (patches (search-patches "ocaml-bitstring-fix-configure.patch"))))
+                "15jjk2pq1vx311gl49s5ag6x5y0654x35w75z07g7kr2q334hqps"))))
     (build-system ocaml-build-system)
     (native-inputs
      `(("camlp4" ,camlp4)
        ("time" ,time)
        ("autoconf" ,autoconf)
        ("automake" ,automake)
-       ("bisect" ,ocaml-bisect)))
+       ("bisect" ,ocaml-bisect)
+       ("dune" ,dune)))
     (propagated-inputs
-     `(("camlp4" ,camlp4)))
+     `(("camlp4" ,camlp4)
+       ("ocaml-ppx-tools-versioned" ,ocaml-ppx-tools-versioned)))
     (arguments
-     `(#:configure-flags
+     `(#:tests? #f; Tests fail to build
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "jbuilder" "build" "@install")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (properties
+      `((ocaml4.02-variant . ,(delay ocaml4.02-bitstring))))
+    (home-page "https://github.com/xguerin/bitstring")
+    (synopsis "Bitstrings and bitstring matching for OCaml")
+    (description "Adds Erlang-style bitstrings and matching over bitstrings as
+a syntax extension and library for OCaml.  You can use this module to both parse
+and generate binary formats, files and protocols.  Bitstring handling is added
+as primitives to the language, making it exceptionally simple to use and very
+powerful.")
+    (license license:isc)))
+ 
+(define-public ocaml4.02-bitstring
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-bitstring))))
+    (package
+      (inherit base)
+      (version "2.1.1")
+      (source (origin
+                (method url-fetch)
+                (uri (string-append "https://github.com/xguerin/bitstring"
+                                    "/archive/v" version ".tar.gz"))
+                (file-name (string-append "ocaml-bitstring-" version ".tar.gz"))
+                (sha256
+                 (base32
+                  "0vy8ibrxccii1jbsk5q6yh1kxjigqvi7lhhcmizvd5gfhf7mfyc8"))
+                (patches (search-patches "ocaml-bitstring-fix-configure.patch"))))
+    (arguments
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:configure-flags
        (list "CAMLP4OF=camlp4of" "--enable-coverage")
        #:make-flags
        (list (string-append "BISECTLIB="
@@ -1280,14 +1719,6 @@ coverage information.")
                             "$(BISECTLIB)/bisect"))
        #:phases
        (modify-phases %standard-phases
-         (add-before 'configure 'fix-configure
-           (lambda* (#:key inputs #:allow-other-keys)
-             (substitute* "Makefile.in"
-               (("@abs_top_builddir@")
-                (string-append "@abs_top_builddir@:" (getenv "LIBRARY_PATH"))))
-             (substitute* "configure"
-               (("-/bin/sh") (string-append "-" (assoc-ref inputs "bash")
-                                            "/bin/sh")))))
          (add-after 'install 'link-lib
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
@@ -1297,15 +1728,24 @@ coverage information.")
                                         "/lib/ocaml/site-lib/bitstring")))
                (mkdir-p stubs)
                (symlink (string-append lib "/dllbitstring.so")
-                        (string-append stubs "/dllbitstring.so"))))))))
-    (home-page "https://github.com/xguerin/bitstring")
-    (synopsis "Bitstrings and bitstring matching for OCaml")
-    (description "Adds Erlang-style bitstrings and matching over bitstrings as
-a syntax extension and library for OCaml.  You can use this module to both parse
-and generate binary formats, files and protocols.  Bitstring handling is added
-as primitives to the language, making it exceptionally simple to use and very
-powerful.")
-    (license license:isc)))
+                        (string-append stubs "/dllbitstring.so")))
+             #t))
+         (add-before 'configure 'fix-configure
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "Makefile.in"
+               (("@abs_top_builddir@")
+                (string-append "@abs_top_builddir@:" (getenv "LIBRARY_PATH"))))
+             (substitute* "configure"
+               (("-/bin/sh") (string-append "-" (assoc-ref inputs "bash")
+                                            "/bin/sh"))))))))
+      (native-inputs
+       `(("camlp4" ,camlp4-4.02)
+         ("time" ,time)
+         ("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("bisect" ,ocaml4.02-bisect)))
+      (propagated-inputs
+       `(("camlp4" ,camlp4-4.02))))))
 
 (define-public ocaml-result
   (package
@@ -1331,6 +1771,9 @@ powerful.")
 staying compatible with older version of OCaml should use the Result module
 defined in this library.")
     (license license:bsd-3)))
+ 
+(define-public ocaml4.02-result
+  (package-with-ocaml4.02 ocaml-result))
 
 (define-public ocaml-topkg
   (package
@@ -1345,7 +1788,8 @@ defined in this library.")
                 "18rrh6fmf708z7dd30amljmcgaypj3kk49jrmrj68r4wnw8004j8"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("opam" ,opam)))
+     `(("opam" ,opam)
+       ("ocamlbuild" ,ocamlbuild)))
     (propagated-inputs
      `(("result" ,ocaml-result)))
     (arguments
@@ -1361,6 +1805,9 @@ provides an API to describe the files a package installs in a given build
 configuration and to specify information about the package's distribution,
 creation and publication procedures.")
     (license license:isc)))
+ 
+(define-public ocaml4.02-topkg
+  (package-with-ocaml4.02 ocaml-topkg))
 
 (define-public ocaml-rresult
   (package
@@ -1375,7 +1822,8 @@ creation and publication procedures.")
                 "1xxycxhdhaq8p9vhwi93s2mlxjwgm44fcxybx5vghzgbankz9yhm"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("opam" ,opam)))
+     `(("opam" ,opam)
+       ("ocamlbuild" ,ocamlbuild)))
     (propagated-inputs
      `(("topkg" ,ocaml-topkg)))
     (arguments
@@ -1392,6 +1840,9 @@ to operate on the result type available from OCaml 4.03 in the standard
 library.")
     (license license:isc)))
 
+(define-public ocaml4.02-rresult
+  (package-with-ocaml4.02 ocaml-rresult))
+
 (define-public ocaml-sqlite3
   (package
     (name "ocaml-sqlite3")
@@ -1407,7 +1858,8 @@ library.")
          "14c1nir7c6bivajg0vyx853y7la7r5d25g1v5hjb2wfi73r15p1m"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("pkg-config" ,pkg-config)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("pkg-config" ,pkg-config)))
     (inputs
      `(("sqlite" ,sqlite)))
     (home-page "https://mmottl.github.io/sqlite3-ocaml")
@@ -1424,6 +1876,9 @@ coexistence with the old (version 2) SQLite and its OCaml wrapper
 (define-public ocaml4.01-sqlite3
   (package-with-ocaml4.01 ocaml-sqlite3))
 
+(define-public ocaml4.02-sqlite3
+  (package-with-ocaml4.02 ocaml-sqlite3))
+
 (define-public ocaml-csv
   (package
     (name "ocaml-csv")
@@ -1439,6 +1894,8 @@ coexistence with the old (version 2) SQLite and its OCaml wrapper
         (base32
          "0rv7x843vn6scxj87hzl01yqrl26rc27lr8s7z6rp9vs745g05zj"))))
     (build-system ocaml-build-system)
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)))
     (home-page "https://github.com/Chris00/ocaml-csv")
     (synopsis "Pure OCaml functions to read and write CSV")
     (description
@@ -1451,6 +1908,9 @@ manipulate such data.")
 (define-public ocaml4.01-csv
   (package-with-ocaml4.01 ocaml-csv))
 
+(define-public ocaml4.02-csv
+  (package-with-ocaml4.02 ocaml-csv))
+
 (define-public ocaml-mtime
   (package
     (name "ocaml-mtime")
@@ -1464,7 +1924,8 @@ manipulate such data.")
                 "1hfx4ny2dkw6jf3jppz0640dafl5xgn8r2si9kpwzhmibal8qrah"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("opam" ,opam)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
     (propagated-inputs
      `(("topkg" ,ocaml-topkg)))
     (arguments
@@ -1480,6 +1941,9 @@ manipulate such data.")
 spans without being subject to operating system calendar time adjustments.")
     (license license:isc)))
 
+(define-public ocaml4.02-mtime
+  (package-with-ocaml4.02 ocaml-mtime))
+
 (define-public ocaml-cmdliner
   (package
     (name "ocaml-cmdliner")
@@ -1493,7 +1957,8 @@ spans without being subject to operating system calendar time adjustments.")
                 "0hdxlkgiwjml9dpaa80282a8350if7mc1m6yz2mrd7gci3fszykx"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("opam" ,opam)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
     (arguments
      `(#:tests? #f
        #:build-flags '("native=true" "native-dynlink=true")
@@ -1510,6 +1975,9 @@ generation. It supports programs with single or multiple commands and respects
 most of the POSIX and GNU conventions.")
     (license license:bsd-3)))
 
+(define-public ocaml4.02-cmdliner
+  (package-with-ocaml4.02 ocaml-cmdliner))
+
 (define-public ocaml-fmt
   (package
     (name "ocaml-fmt")
@@ -1522,10 +1990,13 @@ most of the POSIX and GNU conventions.")
         (sha256 (base32
                   "16y7ibndnairb53j8a6qgipyqwjxncn4pl9jiw5bxjfjm59108px"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("opam" ,opam)
-                     ("topkg" ,ocaml-topkg)))
-    (propagated-inputs `(("result" ,ocaml-result)
-                         ("cmdliner" ,ocaml-cmdliner)))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
+       ("topkg" ,ocaml-topkg)))
+    (propagated-inputs
+     `(("result" ,ocaml-result)
+       ("cmdliner" ,ocaml-cmdliner)))
     (arguments `(#:tests? #f
                  #:build-flags (list "build" "--with-base-unix" "true"
                                      "--with-cmdliner" "true")
@@ -1538,6 +2009,9 @@ most of the POSIX and GNU conventions.")
 functions.")
     (license license:isc)))
 
+(define-public ocaml4.02-fmt
+  (package-with-ocaml4.02 ocaml-fmt))
+
 (define-public ocaml-astring
   (package
     (name "ocaml-astring")
@@ -1550,13 +2024,16 @@ functions.")
         (sha256 (base32
                   "0ixjwc3plrljvj24za3l9gy0w30lsbggp8yh02lwrzw61ls4cri0"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("opam" ,opam)
-                     ("topkg" ,ocaml-topkg)))
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
+       ("topkg" ,ocaml-topkg)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
     (home-page "http://erratique.ch/software/astring")
     (synopsis "Alternative String module for OCaml")
     (description "Astring exposes an alternative String module for OCaml.  This
@@ -1568,6 +2045,9 @@ adds a few missing functions and fully exploits OCaml's newfound string
 immutability.")
     (license license:isc)))
 
+(define-public ocaml4.02-astring
+  (package-with-ocaml4.02 ocaml-astring))
+
 (define-public ocaml-alcotest
   (package
     (name "ocaml-alcotest")
@@ -1580,15 +2060,19 @@ immutability.")
                 (base32
                   "0g5lzk0gpfx4q8hyhr460gr4lab5wakfxsmhfwvb3yinxwzs95gc"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)
-                     ("topkg" ,ocaml-topkg)))
-    (propagated-inputs `(("fmt" ,ocaml-fmt)
-                         ("astring" ,ocaml-astring)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
+       ("topkg" ,ocaml-topkg)))
+    (propagated-inputs
+     `(("fmt" ,ocaml-fmt)
+       ("astring" ,ocaml-astring)))
     (home-page "https://github.com/mirage/alcotest")
     (synopsis "Lightweight OCaml test framework")
     (description "Alcotest exposes simple interface to perform unit tests.  It
@@ -1599,25 +2083,44 @@ 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 ocaml4.02-alcotest
+  (package-with-ocaml4.02 ocaml-alcotest))
+
 (define-public ocaml-ppx-tools
   (package
     (name "ocaml-ppx-tools")
-    (version "5.0+4.02.0")
+    (version "5.1+4.06.0")
     (source
       (origin
         (method url-fetch)
         (uri (string-append "https://github.com/alainfrisch/ppx_tools/archive/"
                             version ".tar.gz"))
         (sha256 (base32
-                  "0rjg4rngi8k9873z4zq95zn9hj8qyw1vcrf11y15aqasfpqq16rc"))))
+                  "0mncpy9v2mcjgnj7s2vqpp2b1ixv54djicfx66ic9wny9d202gj1"))))
     (build-system ocaml-build-system)
-    (arguments `(#:phases (modify-phases %standard-phases (delete 'configure))
-                 #:tests? #f))
+    (arguments
+     `(#:phases (modify-phases %standard-phases (delete 'configure))
+       #:tests? #f))
+    (properties
+      `((ocaml4.02-variant . ,(delay ocaml4.02-ppx-tools))))
     (home-page "https://github.com/alainfrisch/ppx_tools")
     (synopsis "Tools for authors of ppx rewriters and other syntactic tools")
     (description "Tools for authors of ppx rewriters and other syntactic tools.")
     (license license:expat)))
 
+(define-public ocaml4.02-ppx-tools
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-ppx-tools))))
+    (package
+      (inherit base)
+      (version "5.0+4.02.0")
+      (source
+        (origin
+          (method url-fetch)
+          (uri (string-append "https://github.com/alainfrisch/ppx_tools/archive/"
+                              version ".tar.gz"))
+          (sha256 (base32
+                    "0rjg4rngi8k9873z4zq95zn9hj8qyw1vcrf11y15aqasfpqq16rc")))))))
+
 (define-public ocaml-react
   (package
     (name "ocaml-react")
@@ -1630,12 +2133,15 @@ simple (yet expressive) query language to select the tests to run.")
         (sha256 (base32
                   "0knhgbngphv5sp1yskfd97crf169qhpc0igr6w7vqw0q36lswyl8"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("opam" ,opam)))
-    (arguments `(#:tests? #f
-                 #:build-flags (list "native=true" "native-dynlink=true")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "native=true" "native-dynlink=true")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
     (home-page "http://erratique.ch/software/react")
     (synopsis "Declarative events and signals for OCaml")
     (description "React is an OCaml module for functional reactive programming
@@ -1644,6 +2150,9 @@ events and signals.  React doesn't define any primitive event or signal, it
 lets the client choose the concrete timeline.")
     (license license:bsd-3)))
 
+(define-public ocaml4.02-react
+  (package-with-ocaml4.02 ocaml-react))
+
 (define-public ocaml-ssl
   (package
     (name "ocaml-ssl")
@@ -1658,20 +2167,23 @@ lets the client choose the concrete timeline.")
         (sha256 (base32
                   "0fviq8xhp3qk7pmkl7knchywsipxgb7p0z489hj8qnf2sx8xzdmy"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:make-flags (list "OCAMLFIND_LDCONF=ignore")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (add-after 'unpack 'bootstrap
-                     (lambda* (#:key #:allow-other-keys)
-                       (system* "sh" "bootstrap")
-                       (substitute* "src/OCamlMakefile"
-                         (("/bin/sh") (which "bash")))
-                       (substitute* "configure"
-                         (("/bin/sh") (which "bash"))))))))
-    (native-inputs `(("autoconf" ,autoconf)
-                     ("automake" ,automake)
-                     ("which" ,which)))
+    (arguments
+     `(#:tests? #f
+       #:make-flags (list "OCAMLFIND_LDCONF=ignore")
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'bootstrap
+           (lambda* (#:key #:allow-other-keys)
+             (system* "sh" "bootstrap")
+             (substitute* "src/OCamlMakefile"
+               (("/bin/sh") (which "bash")))
+             (substitute* "configure"
+               (("/bin/sh") (which "bash")))
+             #t)))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("which" ,which)))
     (propagated-inputs `(("openssl" ,openssl)))
     (home-page "https://github.com/savonet/ocaml-ssl/")
     (synopsis "OCaml bindings for OpenSSL")
@@ -1680,10 +2192,13 @@ lets the client choose the concrete timeline.")
 through Transport Layer Security (@dfn{TLS}) encrypted connections.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.02-ssl
+  (package-with-ocaml4.02 ocaml-ssl))
+
 (define-public ocaml-lwt
   (package
     (name "ocaml-lwt")
-    (version "2.6.0")
+    (version "4.1.0")
     (source
       (origin
         (method url-fetch)
@@ -1691,35 +2206,37 @@ through Transport Layer Security (@dfn{TLS}) encrypted connections.")
                             ".tar.gz"))
         (file-name (string-append name "-" version ".tar.gz"))
         (sha256 (base32
-                  "1gbw0g8a5a4b16diqrmlhc8ilnikrm4w3jjm1zq310maqg8z0zxz"))))
+                  "0mhh019bjkg5xfvpy1pxs4xdxb759fyydmgb6l4j0qww1qgr8klp"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:configure-flags
-       (list "--enable-ssl" "--enable-glib" "--enable-react"
-             "--enable-ppx")
+     `(#:tests? #f; require lwt_ppx
        #:phases
        (modify-phases %standard-phases
-         (add-before 'configure 'disable-some-checks
-           (lambda* (#:key #:allow-other-keys)
-             (substitute* "tests/unix/main.ml"
-               (("Test_mcast.suite;") ""))))
-         (add-after 'install 'link-stubs
+         (replace 'configure
+           (lambda _
+             (invoke "ocaml" "src/util/configure.ml" "-use-libev" "true")
+             #t))
+         (replace 'build
+           (lambda _
+             (invoke "jbuilder" "build" "@install")
+             #t))
+         (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
-             (let* ((out (assoc-ref outputs "out"))
-                    (stubs (string-append out "/lib/ocaml/site-lib/stubslibs"))
-                    (lib (string-append out "/lib/ocaml/site-lib/lwt")))
-               (mkdir-p stubs)
-               (symlink (string-append lib "/dlllwt-glib_stubs.so")
-                        (string-append stubs "/dlllwt-glib_stubs.so"))
-               (symlink (string-append lib "/dlllwt-unix_stubs.so")
-                        (string-append stubs "/dlllwt-unix_stubs.so"))))))))
-    (native-inputs `(("pkg-config" ,pkg-config)
-                     ("ppx-tools" ,ocaml-ppx-tools)))
-    (inputs `(("libev" ,libev)
-              ("glib" ,glib)))
-    (propagated-inputs `(("result" ,ocaml-result)
-                         ("ocaml-ssl" ,ocaml-ssl)
-                         ("ocaml-react" ,ocaml-react)))
+             (invoke "jbuilder" "install" "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (native-inputs
+     `(("dune" ,dune)
+       ("ocaml-cppo" ,ocaml-cppo)
+       ("ocaml-migrate-parsetree" ,ocaml-migrate-parsetree)
+       ("pkg-config" ,pkg-config)
+       ("ppx-tools-versioned" ,ocaml-ppx-tools-versioned)))
+    (inputs
+     `(("libev" ,libev)
+       ("glib" ,glib)))
+    (propagated-inputs
+     `(("result" ,ocaml-result)
+       ("ocaml-ssl" ,ocaml-ssl)
+       ("ocaml-react" ,ocaml-react)))
     (home-page "https://github.com/ocsigen/lwt")
     (synopsis "Cooperative threads and I/O in monadic style")
     (description "Lwt provides typed, composable cooperative threads.  These
@@ -1728,6 +2245,48 @@ process.  Also, in many cases, Lwt threads can interact without the need for
 locks or other synchronization primitives.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.02-lwt
+  (package-with-ocaml4.02 ocaml-lwt))
+
+(define-public ocaml-lwt-log
+  (package
+    (name "ocaml-lwt-log")
+    (version "1.1.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append "https://github.com/aantron/lwt_log/archive/" version
+                            ".tar.gz"))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256 (base32
+                  "1lr62j2266pbsi54xmzsfvl2z7fi7smhak7fp1ybl8hssxwi6in2"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f; require lwt_ppx
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "jbuilder" "build" "@install")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "jbuilder" "install" "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (native-inputs
+     `(("dune" ,dune)))
+    (propagated-inputs
+     `(("lwt" ,ocaml-lwt)))
+    (home-page "https://github.com/aantron/lwt_log")
+    (synopsis "Logging library")
+    (description "This package provides a deprecated logging component for
+ocaml lwt.")
+    (license license:lgpl2.1)))
+
+(define-public ocaml4.02-lwt-log
+  (package-with-ocaml4.02 ocaml-lwt-log))
+
 (define-public ocaml-logs
   (package
     (name "ocaml-logs")
@@ -1740,18 +2299,22 @@ locks or other synchronization primitives.")
                 (base32
                   "1khbn7jqpid83zn8rvyh1x1sirls7zc878zj4fz985m5xlsfy853"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build" "--with-js_of_ocaml" "false")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)))
-    (propagated-inputs `(("fmt" ,ocaml-fmt)
-                         ("lwt" ,ocaml-lwt)
-                         ("mtime" ,ocaml-mtime)
-                         ("result" ,ocaml-result)
-                         ("cmdliner" ,ocaml-cmdliner)
-                         ("topkg" ,ocaml-topkg)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build" "--with-js_of_ocaml" "false")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
+    (propagated-inputs
+     `(("fmt" ,ocaml-fmt)
+       ("lwt" ,ocaml-lwt)
+       ("mtime" ,ocaml-mtime)
+       ("result" ,ocaml-result)
+       ("cmdliner" ,ocaml-cmdliner)
+       ("topkg" ,ocaml-topkg)))
     (home-page "http://erratique.ch/software/logs")
     (synopsis "Logging infrastructure for OCaml")
     (description "Logs provides a logging infrastructure for OCaml.  Logging is
@@ -1759,6 +2322,9 @@ performed on sources whose reporting level can be set independently.  Log
 message report is decoupled from logging and is handled by a reporter.")
     (license license:isc)))
 
+(define-public ocaml4.02-logs
+  (package-with-ocaml4.02 ocaml-logs))
+
 (define-public ocaml-fpath
   (package
     (name "ocaml-fpath")
@@ -1771,14 +2337,18 @@ message report is decoupled from logging and is handled by a reporter.")
                 (base32
                   "05134ij27xjl6gaqsc65yl19vfj6cjxq3mbm9bf4mija8grdpn6g"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)))
-    (propagated-inputs `(("topkg" ,ocaml-topkg)
-                         ("astring" ,ocaml-astring)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
+    (propagated-inputs
+     `(("topkg" ,ocaml-topkg)
+       ("astring" ,ocaml-astring)))
     (home-page "http://erratique.ch/software/fpath")
     (synopsis "File system paths for OCaml")
     (description "Fpath is an OCaml module for handling file system paths with
@@ -1786,6 +2356,9 @@ POSIX or Windows conventions.  Fpath processes paths without accessing the
 file system and is independent from any system library.")
     (license license:isc)))
 
+(define-public ocaml4.02-fpath
+  (package-with-ocaml4.02 ocaml-fpath))
+
 (define-public ocaml-bos
   (package
     (name "ocaml-bos")
@@ -1798,18 +2371,22 @@ file system and is independent from any system library.")
                 (base32
                   "1ly66lysk4w6mdy4k1n3ynlpfpq7lw4wshcpzgx58v6x613w5s7q"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)))
-    (propagated-inputs `(("topkg" ,ocaml-topkg)
-                         ("astring" ,ocaml-astring)
-                         ("fmt" ,ocaml-fmt)
-                         ("fpath" ,ocaml-fpath)
-                         ("logs" ,ocaml-logs)
-                         ("rresult" ,ocaml-rresult)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
+    (propagated-inputs
+     `(("topkg" ,ocaml-topkg)
+       ("astring" ,ocaml-astring)
+       ("fmt" ,ocaml-fmt)
+       ("fpath" ,ocaml-fpath)
+       ("logs" ,ocaml-logs)
+       ("rresult" ,ocaml-rresult)))
     (home-page "http://erratique.ch/software/bos")
     (synopsis "Basic OS interaction for OCaml")
     (description "Bos provides support for basic and robust interaction with
@@ -1818,26 +2395,31 @@ environment, parse command line arguments, interact with the file system and
 run command line programs.")
     (license license:isc)))
 
+(define-public ocaml4.02-bos
+  (package-with-ocaml4.02 ocaml-bos))
+
 (define-public ocaml-xmlm
   (package
     (name "ocaml-xmlm")
-    (version "1.2.0")
+    (version "1.3.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://erratique.ch/software/xmlm/releases/"
                                   "xmlm-" version ".tbz"))
               (sha256
                 (base32
-                  "1jywcrwn5z3gkgvicr004cxmdaqfmq8wh72f81jqz56iyn5024nh"))))
+                  "1rrdxg5kh9zaqmgapy9bhdqyxbbvxxib3bdfg1vhw4rrkp1z0x8n"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure)
-                   (replace 'build
-                     (lambda* (#:key #:allow-other-keys)
-                       (zero? (system* "pkg/build" "true")))))))
-    (native-inputs `(("opam" ,opam)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("ocaml-topkg" ,ocaml-topkg)
+       ("opam" ,opam)))
     (home-page "http://erratique.ch/software/xmlm")
     (synopsis "Streaming XML codec for OCaml")
     (description "Xmlm is a streaming codec to decode and encode the XML data
@@ -1848,32 +2430,41 @@ representation of the data.")
 (define-public ocaml4.01-xmlm
   (package-with-ocaml4.01 ocaml-xmlm))
 
+(define-public ocaml4.02-xmlm
+  (package-with-ocaml4.02 ocaml-xmlm))
+
 (define-public ocaml-ulex
   (package
     (name "ocaml-ulex")
-    (version "1.1")
+    (version "1.2")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://www.cduce.org/download/ulex-"
+              (uri (string-append "https://github.com/whitequark/ulex/archive/v"
                                   version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                 (base32
-                  "0fjlkwps14adfgxdrbb4yg65fhyimplvjjs1xqj5np197cig67x0"))))
+                  "16gnbhqs6y2v89vw4igzvxdf2g8ybh5643636824aldcv8sscac0"))))
     (build-system ocaml-build-system)
-    (arguments `(#:phases (modify-phases %standard-phases (delete 'configure))
-                 #:tests? #f
-                 #:make-flags
-                 (list "all.opt"
-                       (string-append "OCAMLBUILD=ocamlbuild -byte-plugin "
-                                      "-cflags -I,"
-                                      (assoc-ref %build-inputs "camlp4")
-                                      "/lib/ocaml/site-lib/camlp4"))))
-    (native-inputs `(("camlp4" ,camlp4)))
+    (arguments
+     `(#:phases (modify-phases %standard-phases (delete 'configure))
+       #:tests? #f
+       #:make-flags
+       (list "all.opt"
+             (string-append "OCAMLBUILD=ocamlbuild -byte-plugin "
+                            "-cflags -I," (assoc-ref %build-inputs "camlp4")
+                            "/lib/ocaml/site-lib/camlp4"))))
+    (native-inputs
+     `(("camlp4" ,camlp4)
+       ("ocamlbuild" ,ocamlbuild)))
     (home-page "http://www.cduce.org/download.html#side")
     (synopsis "Lexer generator for Unicode and OCaml")
     (description "Lexer generator for Unicode and OCaml.")
     (license license:expat)))
 
+(define-public ocaml4.02-ulex
+  (package-with-ocaml4.02 ocaml-ulex))
+
 (define-public ocaml-uchar
   (package
     (name "ocaml-uchar")
@@ -1886,39 +2477,49 @@ representation of the data.")
         (sha256 (base32
                   "0ficw1x7ymbd6m8hqw3w1aycwm1hbwd6bad3c5pspwnzh3qlikhi"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "native=true" "native-dynlink=true")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "native=true" "native-dynlink=true")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
     (home-page "https://github.com/ocaml/uchar")
     (synopsis "Compatibility library for OCaml's Uchar module")
     (description "The uchar package provides a compatibility library for the
 `Uchar` module introduced in OCaml 4.03.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.02-uchar
+  (package-with-ocaml4.02 ocaml-uchar))
+
 (define-public ocaml-uutf
   (package
     (name "ocaml-uutf")
-    (version "1.0.0")
+    (version "1.0.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://erratique.ch/software/uutf/releases/"
                                   "uutf-" version ".tbz"))
               (sha256
                 (base32
-                  "08i0cw02cxw4mi2rs01v9xi307qshs6fnd1dlqyb52kcxzblpp37"))))
+                  "1gp96dcggq7s84934vimxh89caaxa77lqiff1yywbwkilkkjcfqj"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)
-                     ("topkg" ,ocaml-topkg)))
-    (propagated-inputs `(("uchar" ,ocaml-uchar)
-                         ("cmdliner" ,ocaml-cmdliner)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
+       ("topkg" ,ocaml-topkg)))
+    (propagated-inputs
+     `(("uchar" ,ocaml-uchar)
+       ("cmdliner" ,ocaml-cmdliner)))
     (home-page "http://erratique.ch/software/uutf")
     (synopsis "Non-blocking streaming Unicode codec for OCaml")
     (description "Uutf is a non-blocking streaming codec to decode and encode
@@ -1930,27 +2531,34 @@ Functions are also provided to fold over the characters of UTF encoded OCaml
 string values and to directly encode characters in OCaml Buffer.t values.")
     (license license:isc)))
 
+(define-public ocaml4.02-uutf
+  (package-with-ocaml4.02 ocaml-uutf))
+
 (define-public ocaml-jsonm
   (package
     (name "ocaml-jsonm")
-    (version "1.0.0")
+    (version "1.0.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://erratique.ch/software/jsonm/releases/"
                                   "jsonm-" version ".tbz"))
               (sha256
                 (base32
-                  "1v3ln6d965lplj28snjdqdqablpp1kx8bw2cfx0m6i157mqyln62"))))
+                  "1176dcmxb11fnw49b7yysvkjh0kpzx4s48lmdn5psq9vshp5c29w"))))
     (build-system ocaml-build-system)
-    (arguments `(#:tests? #f
-                 #:build-flags (list "build")
-                 #:phases
-                 (modify-phases %standard-phases
-                   (delete 'configure))))
-    (native-inputs `(("opam" ,opam)
-                     ("topkg" ,ocaml-topkg)))
-    (propagated-inputs `(("uutf" ,ocaml-uutf)
-                         ("cmdliner" ,ocaml-cmdliner)))
+    (arguments
+     `(#:tests? #f
+       #:build-flags (list "build")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
+       ("topkg" ,ocaml-topkg)))
+    (propagated-inputs
+     `(("uutf" ,ocaml-uutf)
+       ("cmdliner" ,ocaml-cmdliner)))
     (home-page "http://erratique.ch/software/jsonm")
     (synopsis "Non-blocking streaming JSON codec for OCaml")
     (description "Jsonm is a non-blocking streaming codec to decode and encode
@@ -1958,25 +2566,30 @@ the JSON data format.  It can process JSON text without blocking on IO and
 without a complete in-memory representation of the data.")
     (license license:isc)))
 
+(define-public ocaml4.02-jsonm
+  (package-with-ocaml4.02 ocaml-jsonm))
+
 (define-public ocaml-ocurl
   (package
     (name "ocaml-ocurl")
-    (version "0.7.9")
+    (version "0.8.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://ygrek.org.ua/p/release/ocurl/ocurl-"
                                   version ".tar.gz"))
               (sha256
                 (base32
-                  "0pm6nm33wi0p9h765k6zb94ljpknryam4qd1hmb2rsk2y0y1181n"))))
+                  "1ax3xdlzgb1zg7d0wr9nwgmh6a45a764m0wk8p6mx07ad94hz0q9"))))
     (build-system ocaml-build-system)
-    (arguments `(#:phases
-                 (modify-phases %standard-phases
-                   (add-before 'configure 'fix-/bin/sh
-                     (lambda* (#:key inputs #:allow-other-keys)
-                       (substitute* "configure"
-                         (("-/bin/sh") (string-append "-" (which "bash")))))))))
-    (native-inputs `(("pkg-config" ,pkg-config)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'fix-/bin/sh
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "configure"
+               (("-/bin/sh") (string-append "-" (which "bash")))))))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
     (inputs `(("curl" ,curl)))
     (home-page "http://ocurl.forge.ocamlcore.org/")
     (synopsis "OCaml bindings for libcurl")
@@ -1984,6 +2597,9 @@ without a complete in-memory representation of the data.")
 multitude of other network protocols (FTP/SMTP/RTSP/etc).")
     (license license:isc)))
 
+(define-public ocaml4.02-ocurl
+  (package-with-ocaml4.02 ocaml-ocurl))
+
 (define-public ocaml-base64
   (package
     (name "ocaml-base64")
@@ -2005,6 +2621,7 @@ multitude of other network protocols (FTP/SMTP/RTSP/etc).")
          (delete 'configure))))
     (native-inputs
      `(("topkg" ,ocaml-topkg)
+       ("ocamlbuild" ,ocamlbuild)
        ("opam" ,opam)
        ("rresult" ,ocaml-rresult)
        ("bos" ,ocaml-bos)
@@ -2016,6 +2633,9 @@ that represent binary data in an ASCII string format by translating it into a
 radix-64 representation.  It is specified in RFC 4648.")
     (license license:isc)))
 
+(define-public ocaml4.02-base64
+  (package-with-ocaml4.02 ocaml-base64))
+
 (define-public ocamlify
   (package
     (name "ocamlify")
@@ -2029,7 +2649,9 @@ radix-64 representation.  It is specified in RFC 4648.")
     (build-system ocaml-build-system)
     ; tests are done during build
     (arguments
-     `(#:phases
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:phases
        (modify-phases %standard-phases
          (delete 'check))))
     (home-page "https://forge.ocamlcore.org/projects/ocamlify")
@@ -2043,14 +2665,14 @@ OCaml code.")
 (define-public omake
   (package
     (name "omake")
-    (version "0.10.1")
+    (version "0.10.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://download.camlcity.org/download/"
                                   "omake-" version ".tar.gz"))
               (sha256
                (base32
-                "093ansbppms90hiqvzar2a46fj8gm9iwnf8gn38s6piyp70lrbsj"))
+                "07bdg1h5i7qnlv9xq81ad5hfypl10hxm771h4rjyl5cn8plhfcgz"))
               (patches (search-patches "omake-fix-non-determinism.patch"))))
     (build-system ocaml-build-system)
     (arguments
@@ -2063,6 +2685,8 @@ OCaml code.")
                      (lambda* (#:key outputs #:allow-other-keys)
                        (substitute* "mk/osconfig_unix.mk"
                                     (("CC = cc") "CC = gcc")))))))
+    (properties
+      `((ocaml4.02-variant . ,(delay ocaml4.02-omake))))
     (native-inputs `(("hevea" ,hevea)))
     (home-page "http://projects.camlcity.org/projects/omake.html")
     (synopsis "Build system designed for scalability and portability")
@@ -2084,28 +2708,66 @@ many additional enhancements, including:
                    license:gpl2)))) ; OMake itself, with ocaml linking exception
                                     ; see LICENSE.OMake
 
+(define-public ocaml4.02-omake
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant omake))))
+    (package
+      (inherit base)
+      (version "0.10.2")
+      (source (origin
+                (method url-fetch)
+                (uri (string-append "http://download.camlcity.org/download/"
+                                    "omake-" version ".tar.gz"))
+                (sha256
+                 (base32
+                  "1znnlkpz89hk44byvnl1pr92ym6hwfyyw2qm9clq446r6l2z4m64"))
+                (patches (search-patches "omake-fix-non-determinism.patch")))))))
+
 (define-public ocaml-batteries
   (package
     (name "ocaml-batteries")
-    (version "2.5.3")
+    (version "2.9.0")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri "batteries" version 1650))
+              (uri (string-append "https://github.com/ocaml-batteries-team/"
+                                  "batteries-included/releases/download/v"
+                                  version "/batteries-" version ".tar.gz"))
               (sha256
                (base32
-                "1a97w3x2l1jr5x9kj5gqm1x6b0q9fjqdcsvls7arnl3bvzgsia0n"))))
+                "0lkdmv2my5hirkswmci2cch341n6wkkj2q8apjhs83sg6528caxi"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("qtest" ,ocaml-qtest)
+     `(("ocamlbuild" ,ocamlbuild)
+       ("qtest" ,ocaml-qtest)
        ("bisect" ,ocaml-bisect)
        ("ounit" ,ocaml-ounit)))
+    (propagated-inputs
+     `(("ocaml-num" ,ocaml-num)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
          (delete 'check) ; tests are run by the build phase
          (replace 'build
-           (lambda* (#:key outputs #:allow-other-keys)
-             (zero? (system* "ocaml" "setup.ml" "-build")))))))
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((files
+                     (map (lambda (str)
+                            (substring str 0 (- (string-length str) 1)))
+                          (append
+                            (find-files "src" ".*.mliv")
+                            (find-files "src" ".*.mlv")
+                            (find-files "src" ".*.mlp")))))
+               (apply invoke "ocamlbuild" "-no-links" "-use-ocamlfind" "-I" "num"
+                      "-lflag" "-dllpath-all" files)
+               (for-each (lambda (file)
+                           (copy-file (string-append "_build/" file) file))
+                         files))
+             (invoke "ocamlbuild" "-no-links" "-use-ocamlfind" "-I" "num"
+                     "-lflag" "-dllpath-all" "build/mkconf.byte")
+             (copy-file "_build/build/mkconf.byte" "build/mkconf.byte")
+             (invoke "make" "all")
+             #t)))))
+    (properties
+      `((ocaml4.01-variant . ,(delay ocaml4.01-batteries))
+        (ocaml4.02-variant . ,(delay ocaml4.02-batteries))))
     (home-page "http://batteries.forge.ocamlcore.org/")
     (synopsis "Development platform for the OCaml programming language")
     (description "Define a standard set of libraries which may be expected on
@@ -2113,8 +2775,24 @@ every compliant installation of OCaml and organize these libraries into a
 hierarchy of modules.")
     (license license:lgpl2.1+)))
 
+(define-public ocaml4.02-batteries
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-batteries))))
+    (package
+      (inherit base)
+      (version "2.5.3")
+      (source (origin
+                (method url-fetch)
+                (uri (ocaml-forge-uri "batteries" version 1650))
+                (sha256
+                 (base32
+                  "1a97w3x2l1jr5x9kj5gqm1x6b0q9fjqdcsvls7arnl3bvzgsia0n"))))
+      (propagated-inputs '()))))
+
 (define-public ocaml4.01-batteries
-  (package-with-ocaml4.01 ocaml-batteries))
+  (let ((base (package-with-ocaml4.01 (strip-ocaml4.01-variant ocaml4.02-batteries))))
+    (package
+      (inherit base)
+      (name "ocaml4.01-batteries"))))
 
 (define-public ocaml-pcre
   (package
@@ -2139,9 +2817,11 @@ hierarchy of modules.")
                     (lib (string-append out "/lib/ocaml/site-lib/pcre")))
                (mkdir-p stubs)
                (symlink (string-append lib "/dllpcre_stubs.so")
-                        (string-append stubs "/dllpcre_stubs.so"))))))))
+                        (string-append stubs "/dllpcre_stubs.so")))
+             #t)))))
     (native-inputs
      `(("batteries" ,ocaml-batteries)
+       ("ocamlbuild" ,ocamlbuild)
        ("pcre:bin" ,pcre "bin")))
     (propagated-inputs `(("pcre" ,pcre)))
     (home-page "https://mmottl.github.io/pcre-ocaml")
@@ -2151,19 +2831,26 @@ matching and substitution, similar to the functionality offered by the Perl
 language.")
     (license license:lgpl2.1+))); with the OCaml link exception
 
+(define-public ocaml4.02-pcre
+  (package-with-ocaml4.02 ocaml-pcre))
+
 (define-public ocaml-expect
   (package
     (name "ocaml-expect")
-    (version "0.0.5")
+    (version "0.0.6")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri name version 1372))
+              (uri (ocaml-forge-uri name version 1736))
               (sha256
                (base32
-                "07xq8w2x2vffc32z7vk6y14jwbfb1cw0m2lm1jzi60hnr1dvg8by"))))
+                "098qvg9d4yrqzr5ax291y3whrpax0m3sx4gi6is0mblc96r9yqk0"))))
+    (arguments
+     `(#:tests? #f))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("ocaml-pcre" ,ocaml-pcre)
+     `(("ocamlbuild" ,ocamlbuild)
+       ("ocaml-num" ,ocaml-num)
+       ("ocaml-pcre" ,ocaml-pcre)
        ("ounit" ,ocaml-ounit)))
     (propagated-inputs `(("batteries" ,ocaml-batteries)))
     (home-page "https://forge.ocamlcore.org/projects/ocaml-expect/")
@@ -2172,18 +2859,22 @@ language.")
 can match the question using a regular expression or a timeout.")
     (license license:lgpl2.1+))) ; with the OCaml static compilation exception
 
-(define-public ocaml-fileutils
+(define-public ocaml4.02-fileutils
   (package
-    (name "ocaml-fileutils")
-    (version "0.5.1")
+    (name "ocaml4.02-fileutils")
+    (version "0.5.3")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri name version 1651))
+              (uri (ocaml-forge-uri name version 1728))
               (sha256
                (base32
-                "0g6zx2rcvacklxyli19ixcf6ich9ipxsps4k3jz98f5zlaab0a7g"))))
+                "1rc4cqlvdhbs55i85zfbfhz938fsy4fj6kwlkfm3ra7bpwn8bmpd"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("ounit" ,ocaml-ounit)))
+    (arguments
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib))
+    (native-inputs
+     `(("ounit" ,ocaml4.02-ounit)))
     (home-page "http://ocaml-fileutils.forge.ocamlcore.org")
     (synopsis "Pure OCaml functions to manipulate real file and filename")
     (description "Library to provide pure OCaml functions to manipulate real
@@ -2193,20 +2884,20 @@ file (POSIX like) and filename.")
 (define-public ocaml-oasis
   (package
     (name "ocaml-oasis")
-    (version "0.4.8")
+    (version "0.4.11")
     (source (origin
               (method url-fetch)
-              (uri (ocaml-forge-uri name version 1669))
+              (uri (ocaml-forge-uri name version 1757))
               (sha256
                (base32
-                "1ln7vc7ip6s5xbi20mhnn087xi4a2m5vqawx0703qqnfkzhmslqy"))
+                "0bn13mzfa98dq3y0jwzzndl55mnywaxv693z6f1rlvpdykp3vdqq"))
             (modules '((guix build utils)))
             (snippet
              '(begin
                 (substitute* "test/test-main/Test.ml"
                   ;; most of these tests fail because ld cannot find crti.o, but according
                   ;; to the log file, the environment variables {LD_,}LIBRARY_PATH
-                  ;; are set correctly whene LD_LIBRARY_PATH is defined beforhand.
+                  ;; are set correctly when LD_LIBRARY_PATH is defined beforhand.
                   (("TestBaseCompat.tests;") "")
                   (("TestExamples.tests;") "")
                   (("TestFull.tests;") "")
@@ -2216,17 +2907,12 @@ file (POSIX like) and filename.")
                   (("TestPluginOMake.tests;") ""))
                 #t))))
     (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f))
     (native-inputs
-     `(("ocamlify" ,ocamlify)
-       ("ocamlmod" ,ocamlmod)
-       ("ounit" ,ocaml-ounit)
-       ("omake" ,omake)
-       ("ocaml-expect" ,ocaml-expect)
-       ("ocaml-pcre" ,ocaml-pcre)
-       ("ocaml-fileutils" ,ocaml-fileutils)
-       ("camlp4" ,camlp4)
-       ("texlive" ,texlive)
-       ("pkg-config" ,pkg-config)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("ocamlify" ,ocamlify)
+       ("ocamlmod" ,ocamlmod)))
     (home-page "https://oasis.forge.ocamlcore.org")
     (synopsis "Integrates a configure, build, install system in OCaml projects")
     (description "OASIS is a tool to integrate a configure, build and install
@@ -2234,6 +2920,9 @@ system in your OCaml projects.  It helps to create standard entry points in your
 build system and allows external tools to analyse your project easily.")
     (license license:lgpl2.1+))) ; with ocaml static compilation exception
 
+(define-public ocaml4.02-oasis
+  (package-with-ocaml4.02 ocaml-oasis))
+
 (define-public ocaml-js-build-tools
   (package
     (name "ocaml-js-build-tools")
@@ -2242,6 +2931,7 @@ build system and allows external tools to analyse your project easily.")
               "0r8z4fz8iy5y6hkdlkpwf6rk4qigcr3dzyv35585xgg2ahf12zy6"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
+       ("ocamlbuild" ,ocamlbuild)
        ("opam" ,opam)))
     (build-system ocaml-build-system)
     (arguments janestreet-arguments)
@@ -2256,17 +2946,23 @@ from the oasis build log
 @end enumerate")
     (license license:asl2.0)))
 
-(define-public ocaml-bin-prot
+(define-public ocaml4.02-js-build-tools
+  (package-with-ocaml4.02 ocaml-js-build-tools))
+
+(define-public ocaml4.02-bin-prot
   (package
-    (name "ocaml-bin-prot")
+    (name "ocaml4.02-bin-prot")
     (version "113.33.03")
     (source (janestreet-origin "bin_prot" version
                "1ws8c017z8nbj3vw92ndvjk9011f71rmp3llncbv8r5fc76wqv3l"))
+    (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/bin_prot/")
     (synopsis "Binary protocol generator")
     (description "This library contains functionality for reading and writing
@@ -2277,17 +2973,20 @@ protocol is also heavily optimized for size, making it ideal for long-term
 storage of large amounts of data.")
     (license license:asl2.0)))
 
-(define-public ocaml-fieldslib
+(define-public ocaml4.02-fieldslib
   (package
-    (name "ocaml-fieldslib")
+    (name "ocaml4.02-fieldslib")
     (version "113.33.03")
     (source (janestreet-origin "fieldslib" version
                "1rm3bn54bzk2hlq8f3w067ak8s772w4a8f78i3yh79vxfzq8ncvv"))
+    (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/fieldslib/")
     (synopsis "Syntax extension to record fields")
     (description "Syntax extension to define first class values representing
@@ -2295,18 +2994,21 @@ 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-ppx-core
+(define-public ocaml4.02-ppx-core
   (package
-    (name "ocaml-ppx-core")
+    (name "ocaml4.02-ppx-core")
     (version "113.33.03")
     (source (janestreet-origin "ppx_core" version
                "0f69l4czhgssnhb5ds2j9dbqjyz8dp1y3i3x0i4h6pxnms20zbxa"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (inputs `(("ppx-tools" ,ocaml-ppx-tools)))
-    (arguments janestreet-arguments)
+    (inputs `(("ppx-tools" ,ocaml4.02-ppx-tools)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_core/")
     (synopsis "Standard library for ppx rewriters")
     (description "Ppx_core is a standard library for OCaml AST transformers.
@@ -2319,20 +3021,23 @@ It contains:
 @end enumerate")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-optcomp
+(define-public ocaml4.02-ppx-optcomp
   (package
-    (name "ocaml-ppx-optcomp")
+    (name "ocaml4.02-ppx-optcomp")
     (version "113.33.03")
     (source (janestreet-origin "ppx_optcomp" version
                "13an8p2r7sd0d5lv54mlzrxdni47408bwqi3bjcx4m6005170q30"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_optcomp/")
     (synopsis "Optional compilation for OCaml")
     (description "Ppx_optcomp stands for Optional Compilation.  It is a tool
@@ -2340,21 +3045,24 @@ 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-driver
+(define-public ocaml4.02-ppx-driver
   (package
-    (name "ocaml-ppx-driver")
+    (name "ocaml4.02-ppx-driver")
     (version "113.33.03")
     (source (janestreet-origin "ppx_driver" version
               "011zzr45897j49b7iiybb29k7pspcx36mlnp7nh6pxb8b0ga76fh"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-optcomp" ,ocaml-ppx-optcomp)))
+       ("ppx-optcomp" ,ocaml4.02-ppx-optcomp)))
     (propagated-inputs
-     `(("ppx-optcomp" ,ocaml-ppx-optcomp)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-optcomp" ,ocaml4.02-ppx-optcomp)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_driver/")
     (synopsis "Feature-full driver for OCaml AST transformers")
     (description "A driver is an executable created from a set of OCaml AST
@@ -2372,21 +3080,33 @@ provide a tool that can be used to:
 (define-public ocaml-cppo
   (package
     (name "ocaml-cppo")
-    (version "1.4.1")
+    (version "1.6.5")
     (source
       (origin
         (method url-fetch)
         (uri (string-append "https://github.com/mjambon/cppo/archive/v" version
                             ".tar.gz"))
         (sha256 (base32
-                  "02gma6nw09vfnd6h7bl3n70lwz7m9z2svplxyfh6h5bf4lqgqzjv"))
+                  "1dkm3d5h6h56y937gcdk2wixlpzl59vv5pmiafglr89p20kf7gqf"))
         (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:phases (modify-phases %standard-phases (delete 'configure))
-       #:make-flags (list (string-append "BINDIR="
-                                         (assoc-ref %outputs "out") "/bin"))
+     `(#:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "dune" "build" "@install" "--profile" "release")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))
        #:tests? #f))
+    (native-inputs
+     `(("dune" ,dune)
+       ("ocamlbuild" ,ocamlbuild)))
     (home-page "https://github.com/mjambon/cppo")
     (synopsis "Equivalent of the C preprocessor for OCaml programs")
     (description "Cppo is an equivalent of the C preprocessor for OCaml
@@ -2399,11 +3119,14 @@ programs.  It allows the definition of simple macros and file inclusion.  Cpp oi
 @end enumerate")
     (license license:bsd-3)))
 
+(define-public ocaml4.02-cppo
+  (package-with-ocaml4.02 ocaml-cppo))
+
 ;; this package is not reproducible. This is related to temporary filenames
 ;; such as findlib_initxxxxx where xxxxx is random.
-(define-public ocaml-ppx-deriving
+(define-public ocaml4.02-ppx-deriving
   (package
-    (name "ocaml-ppx-deriving")
+    (name "ocaml4.02-ppx-deriving")
     (version "4.1")
     (source
       (origin
@@ -2415,15 +3138,17 @@ programs.  It allows the definition of simple macros and file inclusion.  Cpp oi
         (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
-       ("cppo" ,ocaml-cppo)
-       ("ounit" ,ocaml-ounit)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("cppo" ,ocaml4.02-cppo)
+       ("ounit" ,ocaml4.02-ounit)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("result" ,ocaml-result)
-       ("ppx-tools" ,ocaml-ppx-tools)))
+     `(("result" ,ocaml4.02-result)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)))
     (arguments
-     `(#:phases
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:phases
        (modify-phases %standard-phases
          (delete 'configure)
            (add-before 'install 'fix-environment
@@ -2438,90 +3163,100 @@ programs.  It allows the definition of simple macros and file inclusion.  Cpp oi
 code based on type definitions, and a set of useful plugins for common tasks.")
     (license license:expat)))
 
-(define-public ocaml-ppx-type-conv
+(define-public ocaml4.02-ppx-type-conv
   (package
-    (name "ocaml-ppx-type-conv")
+    (name "ocaml4.02-ppx-type-conv")
     (version "113.33.03")
     (source
       (janestreet-origin "ppx_type_conv" version
         "1sp602ads2f250nv4d4rgw54d14k7flyhb4w8ff084f657hhmxv2"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-deriving" ,ocaml-ppx-deriving)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("result" ,ocaml-result)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-driver" ,ocaml-ppx-driver)))
-    (arguments janestreet-arguments)
+     `(("ppx-deriving" ,ocaml4.02-ppx-deriving)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-driver" ,ocaml4.02-ppx-driver)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_type_conv/")
     (synopsis "Support Library for type-driven code generators")
     (description "The type_conv library factors out functionality needed by
 different preprocessors that generate code from type specifications.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-inline-test
+(define-public ocaml4.02-ppx-inline-test
   (package
-    (name "ocaml-ppx-inline-test")
+    (name "ocaml4.02-ppx-inline-test")
     (version "113.33.03")
     (source (janestreet-origin "ppx_inline_test" version
               "0859ni43fl39dd5g6cxfhq0prxmx59bd2bfq8jafp593ba4q0icq"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-core" ,ocaml-ppx-core)))
+       ("ppx-core" ,ocaml4.02-ppx-core)))
     (propagated-inputs
-      `(("ppx-driver" ,ocaml-ppx-driver)
-        ("ppx-tools" ,ocaml-ppx-tools)
-        ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+      `(("ppx-driver" ,ocaml4.02-ppx-driver)
+        ("ppx-tools" ,ocaml4.02-ppx-tools)
+        ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_inline_test/")
     (synopsis "Syntax extension for writing in-line tests in ocaml code")
     (description "Syntax extension for writing in-line tests in ocaml code.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-bench
+(define-public ocaml4.02-ppx-bench
   (package
-    (name "ocaml-ppx-bench")
+    (name "ocaml4.02-ppx-bench")
     (version "113.33.03")
     (source (janestreet-origin "ppx_bench" version
                    "1hky3y17qpb925rymf97wv54di9gaqdmkix7wpkjw14qzl512b68"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-core" ,ocaml-ppx-core)))
+       ("ppx-core" ,ocaml4.02-ppx-core)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-inline-test" ,ocaml-ppx-inline-test)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-inline-test" ,ocaml4.02-ppx-inline-test)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (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-compare
+(define-public ocaml4.02-ppx-compare
   (package
-    (name "ocaml-ppx-compare")
+    (name "ocaml4.02-ppx-compare")
     (version "113.33.03")
     (source (janestreet-origin "ppx_compare" version
               "0bfhi33kq9l4q6zzc6svki2csracz5j4731c3npcy6cs73jynn0z"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-core" ,ocaml-ppx-core)))
+       ("ppx-core" ,ocaml4.02-ppx-core)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_compare/")
     (synopsis "Generation of comparison functions from types")
     (description "Generation of fast comparison functions from type expressions
@@ -2532,94 +3267,109 @@ 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-sexplib
+(define-public ocaml4.02-sexplib
   (package
-    (name "ocaml-sexplib")
+    (name "ocaml4.02-sexplib")
     (version "113.33.03")
     (source (janestreet-origin "sexplib" version
               "1ffjmj8if9lyv965cgn2ld1xv7g52qsr8mqflbm515ck1i8l2ima"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/sexplib/")
     (synopsis "Library for serializing OCaml values to and from S-expressions")
     (description "Sexplib contains functionality for parsing and pretty-printing
 s-expressions.")
     (license license:asl2.0)))
 
-(define-public ocaml-typerep
+(define-public ocaml4.02-typerep
   (package
-    (name "ocaml-typerep")
+    (name "ocaml4.02-typerep")
     (version "113.33.03")
     (source (janestreet-origin "typerep" version
               "1b9v5bmi824a9d4sx0f40ixq0yfcbiqxafg4a1jx95xg9199zafy"))
+    (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (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-variantslib
+(define-public ocaml4.02-variantslib
   (package
-    (name "ocaml-variantslib")
+    (name "ocaml4.02-variantslib")
     (version "113.33.03")
     (source (janestreet-origin "variantslib" version
               "05vp799vl38fvl98ga5miwbzh09cnnpapi6q6gdvwyqi6w7s919n"))
+    (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
-    (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/variantslib")
     (synopsis "OCaml variants as first class values")
     (description "OCaml variants as first class values.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-conv
+(define-public ocaml4.02-ppx-sexp-conv
   (package
-    (name "ocaml-ppx-sexp-conv")
+    (name "ocaml4.02-ppx-sexp-conv")
     (version "113.33.03")
     (source (janestreet-origin "ppx_sexp_conv" version
               "1rbj6d5dl625gdxih34xcrdvikci6h8i2dl9x3wraa4qrgishiw7"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-core" ,ocaml-ppx-core)))
+       ("ppx-core" ,ocaml4.02-ppx-core)))
     (propagated-inputs
-     `(("sexplib" ,ocaml-sexplib)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)
-       ("ppx-tools" ,ocaml-ppx-tools)))
-    (arguments janestreet-arguments)
+     `(("sexplib" ,ocaml4.02-sexplib)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_sexp_conv")
     (synopsis "Generation of S-expression conversion functions from type definitions")
     (description "Generation of S-expression conversion functions from type
 definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-variants-conv
+(define-public ocaml4.02-ppx-variants-conv
   (package
-    (name "ocaml-ppx-variants-conv")
+    (name "ocaml4.02-ppx-variants-conv")
     (version "113.33.03")
     (source (janestreet-origin "ppx_variants_conv" version
               "0vnn2l1118cj72413d3f7frlw6yc09l8f64jlzkzbgb9bxpalx34"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-core" ,ocaml-ppx-core)
-       ("variantslib" ,ocaml-variantslib)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)))
-    (arguments janestreet-arguments)
+     `(("ppx-core" ,ocaml4.02-ppx-core)
+       ("variantslib" ,ocaml4.02-variantslib)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_variants_conv")
     (synopsis "Generation of accessor and iteration functions for ocaml variant
 types")
@@ -2627,65 +3377,74 @@ types")
 variant types.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-here
+(define-public ocaml4.02-ppx-here
   (package
-    (name "ocaml-ppx-here")
+    (name "ocaml4.02-ppx-here")
     (version "113.33.03")
     (source (janestreet-origin "ppx_here" version
               "1ay8lfxi0qg3ib2zkwh4h0vqk3gjmxaz572gzab0bbxyqn3z86v7"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_here")
     (synopsis "Expands [%here] into its location")
     (description "Expands [%here] into its location.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-assert
+(define-public ocaml4.02-ppx-assert
   (package
-    (name "ocaml-ppx-assert")
+    (name "ocaml4.02-ppx-assert")
     (version "113.33.03")
     (source (janestreet-origin "ppx_assert" version
               "1k5kxmqkibp5fk25pgz81f3c1r4mgvb5byzf6bnmxd24y60wn46p"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-compare" ,ocaml-ppx-compare)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)
-       ("ppx-sexplib" ,ocaml-sexplib)
-       ("ppx-here" ,ocaml-ppx-here)))
-    (arguments janestreet-arguments)
+     `(("ppx-compare" ,ocaml4.02-ppx-compare)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)
+       ("ppx-sexplib" ,ocaml4.02-sexplib)
+       ("ppx-here" ,ocaml4.02-ppx-here)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_assert")
     (synopsis "Assert-like extension nodes that raise useful errors on failure")
     (description "Assert-like extension nodes that raise useful errors on failure.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-enumerate
+(define-public ocaml4.02-ppx-enumerate
   (package
-    (name "ocaml-ppx-enumerate")
+    (name "ocaml4.02-ppx-enumerate")
     (version "113.33.03")
     (source (janestreet-origin "ppx_enumerate" version
               "15g7yfv9wg2h9r6k6q1zrhygmsl4xrfn25mrb0i4czjjivzmxjh4"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_enumerate")
     (synopsis "Generate a list containing all values of a finite type")
     (description "Ppx_enumerate is a ppx rewriter which generates a definition
@@ -2693,174 +3452,198 @@ 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-let
+(define-public ocaml4.02-ppx-let
   (package
-    (name "ocaml-ppx-let")
+    (name "ocaml4.02-ppx-let")
     (version "113.33.03")
     (source (janestreet-origin "ppx_let" version
               "0gd6d3gdaqfwjcs7gaw1qxc30i584q6a86ndaj1bx1q63xqd6yx9"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_let")
     (synopsis "Monadic let-bindings")
     (description "A ppx rewriter for monadic and applicative let bindings,
 match expressions, and if expressions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-typerep-conv
+(define-public ocaml4.02-ppx-typerep-conv
   (package
-    (name "ocaml-ppx-typerep-conv")
+    (name "ocaml4.02-ppx-typerep-conv")
     (version "113.33.03")
     (source (janestreet-origin "ppx_typerep_conv" version
               "0g0xqm9s1b2jjvxb8yp69281q2s3bwz6sibn10fvgcdawpa0rmrg"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("typerep" ,ocaml-typerep)))
-    (arguments janestreet-arguments)
+     `(("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("typerep" ,ocaml4.02-typerep)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_typerep_conv")
     (synopsis "Generation of runtime types from type declarations")
     (description "Automatic generation of runtime types from type definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-value
+(define-public ocaml4.02-ppx-sexp-value
   (package
-    (name "ocaml-ppx-sexp-value")
+    (name "ocaml4.02-ppx-sexp-value")
     (version "113.33.03")
     (source (janestreet-origin "ppx_sexp_value" version
               "0m3ag23mbqm0i2pv1dzilfks15ipa5q60mf57a0cd3p0pvarq10g"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-here" ,ocaml-ppx-here)
-       ("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-here" ,ocaml4.02-ppx-here)
+       ("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_sexp_value/")
     (synopsis "Simplify building s-expressions from ocaml values")
     (description "A ppx rewriter that simplifies building s-expressions from
 ocaml values.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-pipebang
+(define-public ocaml4.02-ppx-pipebang
   (package
-    (name "ocaml-ppx-pipebang")
+    (name "ocaml4.02-ppx-pipebang")
     (version "113.33.03")
     (source (janestreet-origin "ppx_pipebang" version
               "1965c7hymp26ncmjs0pfxi2s5jlj60z2c9b194lgcwxqiav56pcw"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_pipebang/")
     (synopsis "Inline reverse application operators `|>` and `|!`")
     (description "A ppx rewriter that inlines reverse application operators
 @code{|>} and @code{|!}.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-bin-prot
+(define-public ocaml4.02-ppx-bin-prot
   (package
-    (name "ocaml-ppx-bin-prot")
+    (name "ocaml4.02-ppx-bin-prot")
     (version "113.33.03")
     (source (janestreet-origin "ppx_bin_prot" version
               "173kjv36giik11zgfvsbzwfbpr66dm2pcha9vf990jgzh8hqz39h"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("bin-prot" ,ocaml-bin-prot)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("bin-prot" ,ocaml4.02-bin-prot)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_bin_prot/")
     (synopsis "Generation of bin_prot readers and writers from types")
     (description "Generation of binary serialization and deserialization
 functions from type definitions.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-fail
+(define-public ocaml4.02-ppx-fail
   (package
-    (name "ocaml-ppx-fail")
+    (name "ocaml4.02-ppx-fail")
     (version "113.33.03")
     (source (janestreet-origin "ppx_fail" version
               "1dwgad0f05gqp5rnwf9dcasidpfi7q3mrpazsw3a2vijjblbhjgn"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-here" ,ocaml-ppx-here)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-here" ,ocaml4.02-ppx-here)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_fail/")
     (synopsis "Add location to calls to failwiths")
     (description "Syntax extension that makes [failwiths] always include a
 position.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-custom-printf
+(define-public ocaml4.02-ppx-custom-printf
   (package
-    (name "ocaml-ppx-custom-printf")
+    (name "ocaml4.02-ppx-custom-printf")
     (version "113.33.03")
     (source (janestreet-origin "ppx_custom_printf" version
               "11jlx0n87g2j1vyyp343dibx7lvvwig5j5q0nq0b80kbsq0k6yr8"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-driver" ,ocaml-ppx-driver)))
-    (arguments janestreet-arguments)
+     `(("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-driver" ,ocaml4.02-ppx-driver)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_custom_printf/")
     (synopsis "Printf-style format-strings for user-defined string conversion")
     (description "Extensions to printf-style format-strings for user-defined
 string conversion.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-sexp-message
+(define-public ocaml4.02-ppx-sexp-message
   (package
-    (name "ocaml-ppx-sexp-message")
+    (name "ocaml4.02-ppx-sexp-message")
     (version "113.33.03")
     (source (janestreet-origin "ppx_sexp_message" version
               "084w1l3gnyw4ri9vbn7bv9b2xkw1520qczfxpxdarfivdrz8xr68"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-here" ,ocaml-ppx-here)
-       ("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)))
-    (arguments janestreet-arguments)
+     `(("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-here" ,ocaml4.02-ppx-here)
+       ("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_sexp_message/")
     (synopsis "A ppx rewriter for easy construction of s-expressions")
     (description "Ppx_sexp_message aims to ease the creation of s-expressions
@@ -2869,23 +3652,26 @@ 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-fields-conv
+(define-public ocaml4.02-ppx-fields-conv
   (package
-    (name "ocaml-ppx-fields-conv")
+    (name "ocaml4.02-ppx-fields-conv")
     (version "113.33.03")
     (source (janestreet-origin "ppx_fields_conv" version
               "1vzbdz27g5qhhfs7wx6rjf979q4xyssxqbmp6sc1sxknbghslbdv"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)
-       ("ppx-core" ,ocaml-ppx-core)))
+       ("ppx-core" ,ocaml4.02-ppx-core)))
     (propagated-inputs
-     `(("fieldslib" ,ocaml-fieldslib)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-type-conv" ,ocaml-ppx-type-conv)))
-    (arguments janestreet-arguments)
+     `(("fieldslib" ,ocaml4.02-fieldslib)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-type-conv" ,ocaml4.02-ppx-type-conv)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_fields_conv/")
     (synopsis "Generation of accessor and iteration functions for ocaml records")
     (description "Ppx_fields_conv is a ppx rewriter that can be used to define
@@ -2894,10 +3680,59 @@ 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-seq
+  (package
+    (name "ocaml-seq")
+    (version "0.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/c-cube/seq/archive/"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "02lb2d9i12bxrz2ba5wygk2bycan316skqlyri0597q7j9210g8r"))))
+    (build-system ocaml-build-system)
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (delete 'build)
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((install-dir (string-append (assoc-ref outputs "out")
+                                               "/lib/ocaml/site-lib/seq")))
+               (mkdir-p install-dir)
+               (with-output-to-file (string-append install-dir "/META")
+                 (lambda _
+                   (display "name=\"seq\"
+version=\"[distributed with ocaml]\"
+description=\"dummy package for compatibility\"
+requires=\"\"")))
+             #t))))))
+    (properties
+      `((ocaml4.02-variant . ,(delay ocaml4.02-seq))))
+    (home-page "https://github.com/c-cube/seq")
+    (synopsis "OCaml's standard iterator type")
+    (description "This package is a compatibility package for OCaml's
+standard iterator type starting from 4.07.")
+    (license license:lgpl2.1+)))
+
+(define-public ocaml4.02-seq
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-seq))))
+    (package
+      (inherit base)
+      (arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib
+         #:tests? #f; no tests
+         #:phases (modify-phases %standard-phases (delete 'configure)))))))
+
 (define-public ocaml-re
   (package
     (name "ocaml-re")
-    (version "1.7.1")
+    (version "1.8.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/ocaml/ocaml-re//archive/"
@@ -2905,9 +3740,27 @@ new record values.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1s3rcr76cgm4p1xmaazc58arkg2lz3zfcp1icm00m6s5ccnkh67b"))))
+                "1pdb0mr6z5ax6szblr3f5lbdnqq9grm97cmsfjmdma60yrx2rqhd"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("ounit" ,ocaml-ounit)))
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+           (lambda _
+             (invoke "dune" "build" "@install" "--profile" "release")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))))
+    (propagated-inputs
+     `(("ocaml-seq" ,ocaml-seq)))
+    (native-inputs
+     `(("dune" ,dune)
+       ("ounit" ,ocaml-ounit)))
     (home-page "https://github.com/ocaml/ocaml-re/")
     (synopsis "Regular expression library for OCaml")
     (description "Pure OCaml regular expressions with:
@@ -2920,32 +3773,38 @@ new record values.")
 @end enumerate")
     (license license:expat)))
 
-(define-public ocaml-ppx-expect
+(define-public ocaml4.02-re
+  (package-with-ocaml4.02 ocaml-re))
+
+(define-public ocaml4.02-ppx-expect
   (package
-    (name "ocaml-ppx-expect")
+    (name "ocaml4.02-ppx-expect")
     (version "113.33.03")
     (source (janestreet-origin "ppx_expect" version
               "03sbs4s5i8l9syr45v25f5hzy7msd2b47k2a9wsq9m43d4imgkrc"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("fieldslib" ,ocaml-fieldslib)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("ppx-assert" ,ocaml-ppx-assert)
-       ("ppx-compare" ,ocaml-ppx-compare)
-       ("ppx-core" ,ocaml-ppx-core)
-       ("ppx-custom-printf" ,ocaml-ppx-custom-printf)
-       ("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-fields-conv" ,ocaml-ppx-fields-conv)
-       ("ppx-inline-test" ,ocaml-ppx-inline-test)
-       ("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-variants-conv" ,ocaml-ppx-variants-conv)
-       ("re" ,ocaml-re)
-       ("sexplib" ,ocaml-sexplib)
-       ("variantslib" ,ocaml-variantslib)))
-    (arguments janestreet-arguments)
+     `(("fieldslib" ,ocaml4.02-fieldslib)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("ppx-assert" ,ocaml4.02-ppx-assert)
+       ("ppx-compare" ,ocaml4.02-ppx-compare)
+       ("ppx-core" ,ocaml4.02-ppx-core)
+       ("ppx-custom-printf" ,ocaml4.02-ppx-custom-printf)
+       ("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-fields-conv" ,ocaml4.02-ppx-fields-conv)
+       ("ppx-inline-test" ,ocaml4.02-ppx-inline-test)
+       ("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-variants-conv" ,ocaml4.02-ppx-variants-conv)
+       ("re" ,ocaml4.02-re)
+       ("sexplib" ,ocaml4.02-sexplib)
+       ("variantslib" ,ocaml4.02-variantslib)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_expect/")
     (synopsis "Cram like framework for OCaml")
     (description "Expect-test is a framework for writing tests in OCaml, similar
@@ -2955,66 +3814,72 @@ output-generating code, interleaved with %expect extension expressions to denote
 the expected output.")
     (license license:asl2.0)))
 
-(define-public ocaml-ppx-jane
+(define-public ocaml4.02-ppx-jane
   (package
-    (name "ocaml-ppx-jane")
+    (name "ocaml4.02-ppx-jane")
     (version "113.33.03")
     (source (janestreet-origin "ppx_jane" version
               "0bjxkhmzgm6x9dcvjwybbccn34khbvyyjimcbaja30fp6qcqk5yl"))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("ppx-assert" ,ocaml-ppx-assert)
-       ("ppx-bench" ,ocaml-ppx-bench)
-       ("ppx-bin-prot" ,ocaml-ppx-bin-prot)
-       ("ppx-compare" ,ocaml-ppx-compare)
-       ("ppx-custom-printf" ,ocaml-ppx-custom-printf)
-       ("ppx-deriving" ,ocaml-ppx-deriving)
-       ("ppx-enumerate" ,ocaml-ppx-enumerate)
-       ("ppx-expect" ,ocaml-ppx-expect)
-       ("ppx-fail" ,ocaml-ppx-fail)
-       ("ppx-fields-conv" ,ocaml-ppx-fields-conv)
-       ("ppx-here" ,ocaml-ppx-here)
-       ("ppx-inline-test" ,ocaml-ppx-inline-test)
-       ("ppx-let" ,ocaml-ppx-let)
-       ("ppx-pipebang" ,ocaml-ppx-pipebang)
-       ("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("ppx-sexp-message" ,ocaml-ppx-sexp-message)
-       ("ppx-sexp-value" ,ocaml-ppx-sexp-value)
-       ("ppx-typerep-conv" ,ocaml-ppx-typerep-conv)
-       ("ppx-variants-conv" ,ocaml-ppx-variants-conv)))
-    (arguments janestreet-arguments)
+     `(("ppx-assert" ,ocaml4.02-ppx-assert)
+       ("ppx-bench" ,ocaml4.02-ppx-bench)
+       ("ppx-bin-prot" ,ocaml4.02-ppx-bin-prot)
+       ("ppx-compare" ,ocaml4.02-ppx-compare)
+       ("ppx-custom-printf" ,ocaml4.02-ppx-custom-printf)
+       ("ppx-deriving" ,ocaml4.02-ppx-deriving)
+       ("ppx-enumerate" ,ocaml4.02-ppx-enumerate)
+       ("ppx-expect" ,ocaml4.02-ppx-expect)
+       ("ppx-fail" ,ocaml4.02-ppx-fail)
+       ("ppx-fields-conv" ,ocaml4.02-ppx-fields-conv)
+       ("ppx-here" ,ocaml4.02-ppx-here)
+       ("ppx-inline-test" ,ocaml4.02-ppx-inline-test)
+       ("ppx-let" ,ocaml4.02-ppx-let)
+       ("ppx-pipebang" ,ocaml4.02-ppx-pipebang)
+       ("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("ppx-sexp-message" ,ocaml4.02-ppx-sexp-message)
+       ("ppx-sexp-value" ,ocaml4.02-ppx-sexp-value)
+       ("ppx-typerep-conv" ,ocaml4.02-ppx-typerep-conv)
+       ("ppx-variants-conv" ,ocaml4.02-ppx-variants-conv)))
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/ppx_jane/")
     (synopsis "Standard Jane Street ppx rewriters")
     (description "Ppx_jane is a ppx_driver including all standard ppx rewriters.")
     (license license:asl2.0)))
 
-(define-public ocaml-core-kernel
+(define-public ocaml4.02-core-kernel
   (package
-    (name "ocaml-core-kernel")
+    (name "ocaml4.02-core-kernel")
     (version "113.33.03")
     (source (janestreet-origin "core_kernel" version
                "0fl23jrwivixawhxinbwaw9cabqnzn7fini7dxpxjjvkxdc8ip5y"))
     (native-inputs
-     `(("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+     `(("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("bin_prot" ,ocaml-bin-prot)
-       ("ppx-assert" ,ocaml-ppx-assert)
-       ("ppx-bench" ,ocaml-ppx-bench)
-       ("ppx-driver" ,ocaml-ppx-driver)
-       ("ppx-expect" ,ocaml-ppx-expect)
-       ("ppx-inline-test" ,ocaml-ppx-inline-test)
-       ("typerep" ,ocaml-typerep)
-       ("sexplib" ,ocaml-sexplib)
-       ("variantslib" ,ocaml-variantslib)
-       ("result" ,ocaml-result)
-       ("fieldslib" ,ocaml-fieldslib)))
+     `(("bin_prot" ,ocaml4.02-bin-prot)
+       ("ppx-assert" ,ocaml4.02-ppx-assert)
+       ("ppx-bench" ,ocaml4.02-ppx-bench)
+       ("ppx-driver" ,ocaml4.02-ppx-driver)
+       ("ppx-expect" ,ocaml4.02-ppx-expect)
+       ("ppx-inline-test" ,ocaml4.02-ppx-inline-test)
+       ("typerep" ,ocaml4.02-typerep)
+       ("sexplib" ,ocaml4.02-sexplib)
+       ("variantslib" ,ocaml4.02-variantslib)
+       ("result" ,ocaml4.02-result)
+       ("fieldslib" ,ocaml4.02-fieldslib)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/core_kernel/")
     (synopsis "Portable standard library for OCaml")
     (description "Core is an alternative to the OCaml standard library.
@@ -3023,127 +3888,145 @@ Core_kernel is the system-independent part of Core.  It is aimed for cases when
 the full Core is not available, such as in Javascript.")
     (license license:asl2.0)))
 
-(define-public ocaml-async-kernel
+(define-public ocaml4.02-async-kernel
   (package
-    (name "ocaml-async-kernel")
+    (name "ocaml4.02-async-kernel")
     (version "113.33.03")
     (source (janestreet-origin "async_kernel" version
               "04bjsaa23j831r09r38x6xx9nhryvp0z5ihickvhxqa4fb2snyvd"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("core-kernel" ,ocaml-core-kernel)))
+     `(("core-kernel" ,ocaml4.02-core-kernel)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/async_kernel/")
     (synopsis "Monadic concurrency library")
     (description "Async-kernel is a library for concurrent programming in OCaml.")
     (license license:asl2.0)))
 
-(define-public ocaml-async-rpc-kernel
+(define-public ocaml4.02-async-rpc-kernel
   (package
-    (name "ocaml-async-rpc-kernel")
+    (name "ocaml4.02-async-rpc-kernel")
     (version "113.33.03")
     (source (janestreet-origin "async_rpc_kernel" version
              "0y97h9pkb00v7jpf87m8cbb0ffkclj9g26ph6sq97q8dpisnkjwh"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("async-kernel" ,ocaml-async-kernel)))
+     `(("async-kernel" ,ocaml4.02-async-kernel)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/async_rpc_kernel/")
     (synopsis "Platform-independent core of the Async RPC library")
     (description "Async_rpc_kernel is the platform-independent core of
 the Async RPC library.")
     (license license:asl2.0)))
 
-(define-public ocaml-core
+(define-public ocaml4.02-core
   (package
-    (name "ocaml-core")
+    (name "ocaml4.02-core")
     (version "113.33.03")
     (source (janestreet-origin "core" version
               "1znll157qg56g9d3247fjibv1hxv3r9wxgr4nhy19j2vzdh6a268"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("core-kernel" ,ocaml-core-kernel)))
+     `(("core-kernel" ,ocaml4.02-core-kernel)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (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
 standard library that was developed by Jane Street.")
     (license license:asl2.0)))
 
-(define-public ocaml-async-unix
+(define-public ocaml4.02-async-unix
   (package
-    (name "ocaml-async-unix")
+    (name "ocaml4.02-async-unix")
     (version "113.33.03")
     (source (janestreet-origin "async_unix" version
               "1fwl0lfrizllcfjk8hk8m7lsz9ha2jg6qgk4gssfyz377qvpcq4h"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("async-kernel" ,ocaml-async-kernel)
-       ("core" ,ocaml-core)))
+     `(("async-kernel" ,ocaml4.02-async-kernel)
+       ("core" ,ocaml4.02-core)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/async_unix")
     (synopsis "Asynchronous execution library for Unix")
     (description "Async_unix is an asynchronous execution library for Unix.")
     (license license:asl2.0)))
 
-(define-public ocaml-async-extra
+(define-public ocaml4.02-async-extra
   (package
-    (name "ocaml-async-extra")
+    (name "ocaml4.02-async-extra")
     (version "113.33.03")
     (source (janestreet-origin "async_extra" version
               "1si8jgiq5xh5sl9f2b7f9p17p7zx5h1pg557x2cxywi2x7pxqg4f"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("async-rpc-kernel" ,ocaml-async-rpc-kernel)
-       ("async-unix" ,ocaml-async-unix)
-       ("core" ,ocaml-core)))
+     `(("async-rpc-kernel" ,ocaml4.02-async-rpc-kernel)
+       ("async-unix" ,ocaml4.02-async-unix)
+       ("core" ,ocaml4.02-core)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/async_extra")
     (synopsis "Extra functionnalities for the async library")
     (description "Async_extra provides additional functionnalities for the
 async library.")
     (license license:asl2.0)))
 
-(define-public ocaml-async
+(define-public ocaml4.02-async
   (package
-    (name "ocaml-async")
+    (name "ocaml4.02-async")
     (version "113.33.03")
     (source (janestreet-origin "async" version
               "0210fyhcs12kpmmd26015bgivkfd2wqkyn3c5wd7688d0f872y25"))
     (native-inputs
      `(("oasis" ,ocaml-oasis)
-       ("js-build-tools" ,ocaml-js-build-tools)
-       ("ppx-jane" ,ocaml-ppx-jane)
+       ("js-build-tools" ,ocaml4.02-js-build-tools)
+       ("ppx-jane" ,ocaml4.02-ppx-jane)
        ("opam" ,opam)))
     (propagated-inputs
-     `(("async-extra" ,ocaml-async-extra)))
+     `(("async-extra" ,ocaml4.02-async-extra)))
     (build-system ocaml-build-system)
-    (arguments janestreet-arguments)
+    (arguments
+      (ensure-keyword-arguments janestreet-arguments
+       `(#:ocaml ,ocaml-4.02
+         #:findlib ,ocaml4.02-findlib)))
     (home-page "https://github.com/janestreet/async")
     (synopsis "Monadic concurrency library")
     (description "Async is a library for concurrent programming in OCaml.")
@@ -3162,7 +4045,9 @@ async library.")
                 "0hwj09rnzjs0m0kazz5h2mgs6p95j0zlga8cda5srnzqmzhniwkn"))
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("cppo" ,ocaml-cppo)))
+    (native-inputs
+     `(("cppo" ,ocaml-cppo)
+       ("ocamlbuild" ,ocamlbuild)))
     (home-page "https://github.com/OCamlPro/ocplib-endian")
     (synopsis "Optimised functions to read and write int16/32/64 from strings
 and bigarrays")
@@ -3172,9 +4057,12 @@ strings, bytes and bigstring (Bigarrys of chars), and provides submodules for
 big- and little-endian, with their unsafe counter-parts.")
     (license license:lgpl2.1)))
 
-(define-public ocaml-cstruct
+(define-public ocaml4.02-ocplib-endian
+  (package-with-ocaml4.02 ocaml-ocplib-endian))
+
+(define-public ocaml4.02-cstruct
   (package
-    (name "ocaml-cstruct")
+    (name "ocaml4.02-cstruct")
     (version "2.3.1")
     (source (origin
               (method url-fetch)
@@ -3186,7 +4074,9 @@ big- and little-endian, with their unsafe counter-parts.")
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:configure-flags
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:configure-flags
        (list "--enable-lwt" "--enable-async")
        #:phases
        (modify-phases %standard-phases
@@ -3199,14 +4089,14 @@ big- and little-endian, with their unsafe counter-parts.")
                (symlink (string-append lib "/dllcstruct_stubs.so")
                         (string-append stubs "/dllcstruct_stubs.so"))))))))
     (native-inputs
-     `(("ounit" ,ocaml-ounit)
-       ("ppx-tools" ,ocaml-ppx-tools)
-       ("camlp4" ,camlp4)))
+     `(("ounit" ,ocaml4.02-ounit)
+       ("ppx-tools" ,ocaml4.02-ppx-tools)
+       ("camlp4" ,camlp4-4.02)))
     (propagated-inputs
-     `(("ocplib-endian" ,ocaml-ocplib-endian)
-       ("lwt" ,ocaml-lwt)
-       ("async" ,ocaml-async)
-       ("sexplib" ,ocaml-sexplib)))
+     `(("ocplib-endian" ,ocaml4.02-ocplib-endian)
+       ("lwt" ,ocaml4.02-lwt)
+       ("async" ,ocaml4.02-async)
+       ("sexplib" ,ocaml4.02-sexplib)))
     (home-page "https://github.com/mirage/ocaml-cstruct")
     (synopsis "Access C structures via a camlp4 extension")
     (description "Cstruct is a library and syntax extension to make it easier
@@ -3214,9 +4104,9 @@ to access C-like structures directly from OCaml.  It supports both reading and
 writing to these structures, and they are accessed via the Bigarray module.")
     (license license:isc)))
 
-(define-public ocaml-hex
+(define-public ocaml4.02-hex
   (package
-    (name "ocaml-hex")
+    (name "ocaml4.02-hex")
     (version "1.0.0")
     (source (origin
               (method url-fetch)
@@ -3227,15 +4117,19 @@ writing to these structures, and they are accessed via the Bigarray module.")
                 "0s63g0b8gfv2xm6fv6xg7bva8h76b5pcjb0zw3f8cygs0lq9072v"))
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
-    (propagated-inputs `(("cstruct" ,ocaml-cstruct)))
+    (arguments
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib))
+    (propagated-inputs
+     `(("cstruct" ,ocaml4.02-cstruct)))
     (home-page "https://github.com/mirage/ocaml-hex/")
     (synopsis "Minimal library providing hexadecimal converters")
     (description "Hex is a minimal library providing hexadecimal converters.")
     (license license:isc)))
 
-(define-public ocaml-ezjsonm
+(define-public ocaml4.02-ezjsonm
   (package
-    (name "ocaml-ezjsonm")
+    (name "ocaml4.02-ezjsonm")
     (version "0.4.3")
     (source (origin
               (method url-fetch)
@@ -3247,14 +4141,16 @@ writing to these structures, and they are accessed via the Bigarray module.")
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (native-inputs
-     `(("alcotest" ,ocaml-alcotest)))
+     `(("alcotest" ,ocaml4.02-alcotest)))
     (propagated-inputs
-     `(("hex" ,ocaml-hex)
-       ("jsonm" ,ocaml-jsonm)
-       ("lwt" ,ocaml-lwt)
-       ("sexplib" ,ocaml-sexplib)))
+     `(("hex" ,ocaml4.02-hex)
+       ("jsonm" ,ocaml4.02-jsonm)
+       ("lwt" ,ocaml4.02-lwt)
+       ("sexplib" ,ocaml4.02-sexplib)))
     (arguments
-     `(#:configure-flags (list "--enable-lwt")))
+     `(#:configure-flags (list "--enable-lwt")
+       #:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib))
     (home-page "https://github.com/mirage/ezjsonm/")
     (synopsis "Read and write JSON data")
     (description "Ezjsonm provides more convenient (but far less flexible) input
@@ -3263,9 +4159,9 @@ the need to write signal code, which is useful for quick scripts that manipulate
 JSON.")
     (license license:isc)))
 
-(define-public ocaml-uri
+(define-public ocaml4.02-uri
   (package
-    (name "ocaml-uri")
+    (name "ocaml4.02-uri")
     (version "1.9.2")
     (source (origin
               (method url-fetch)
@@ -3276,14 +4172,17 @@ JSON.")
                 "02bzrag79prx261rxf9mlak749pwf4flpfl8p012x1xznv9m0clc"))
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
+    (arguments
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib))
     (native-inputs
-     `(("ounit" ,ocaml-ounit)))
+     `(("ounit" ,ocaml4.02-ounit)))
     (propagated-inputs
-     `(("ppx-sexp-conv" ,ocaml-ppx-sexp-conv)
-       ("re" ,ocaml-re)
-       ("ppx-deriving" ,ocaml-ppx-deriving)
-       ("sexplib" ,ocaml-sexplib)
-       ("stringext" ,ocaml-stringext)))
+     `(("ppx-sexp-conv" ,ocaml4.02-ppx-sexp-conv)
+       ("re" ,ocaml4.02-re)
+       ("ppx-deriving" ,ocaml4.02-ppx-deriving)
+       ("sexplib" ,ocaml4.02-sexplib)
+       ("stringext" ,ocaml4.02-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.")
@@ -3312,6 +4211,9 @@ JSON.")
 Format module of the OCaml standard library.")
     (license license:bsd-3)))
 
+(define-public ocaml4.02-easy-format
+  (package-with-ocaml4.02 ocaml-easy-format))
+
 (define-public optcomp
   (package
     (name "optcomp")
@@ -3326,13 +4228,15 @@ Format module of the OCaml standard library.")
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:use-make? #t
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:use-make? #t
        #:make-flags
        (list (string-append "BUILDFLAGS=\"-cflags -I,"
                             (assoc-ref %build-inputs "camlp4")
                             "/lib/ocaml/site-lib/camlp4/Camlp4Parsers\""))))
-    (native-inputs `(("camlp4" ,camlp4)))
-    (propagated-inputs `(("camlp4" ,camlp4)))
+    (native-inputs `(("camlp4" ,camlp4-4.02)))
+    (propagated-inputs `(("camlp4" ,camlp4-4.02)))
     (home-page "https://github.com/diml/optcomp")
     (synopsis "Optional compilation for OCaml")
     (description "Optcomp provides an optional compilation facility with
@@ -3342,14 +4246,14 @@ cpp-like directives.")
 (define-public ocaml-piqilib
   (package
     (name "ocaml-piqilib")
-    (version "0.6.13")
+    (version "0.6.14")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/alavrik/piqi/archive/v"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1whqr2bb3gds2zmrzqnv8vqka9928w4lx6mi6g244kmbwb2h8d8l"))
+                "1ssccnwqzfyf7syfq2fv4zyhwayxwd75rhq9y28mvq1w6qbww4l7"))
               (file-name (string-append name "-" version ".tar.gz"))))
     (build-system ocaml-build-system)
     (arguments
@@ -3365,14 +4269,17 @@ cpp-like directives.")
              (let ((out (assoc-ref outputs "out")))
                (substitute* "make/OCamlMakefile"
                  (("/bin/sh") (which "bash")))
-               (zero? (system* "./configure" "--prefix" out "--ocaml-libdir"
-                               (string-append out "/lib/ocaml/site-lib"))))))
+               (invoke "./configure" "--prefix" out "--ocaml-libdir"
+                       (string-append out "/lib/ocaml/site-lib")))
+             #t))
        (add-after 'build 'build-ocaml
          (lambda* (#:key outputs #:allow-other-keys)
-           (zero? (system* "make" "ocaml")))) 
+           (invoke "make" "ocaml")
+           #t))
        (add-after 'install 'install-ocaml
          (lambda* (#:key outputs #:allow-other-keys)
-           (zero? (system* "make" "ocaml-install"))))
+           (invoke "make" "ocaml-install")
+           #t))
        (add-after 'install-ocaml 'link-stubs
          (lambda* (#:key outputs #:allow-other-keys)
            (let* ((out (assoc-ref outputs "out"))
@@ -3388,15 +4295,18 @@ cpp-like directives.")
     (propagated-inputs
      `(("xmlm" ,ocaml-xmlm)
        ("ulex" ,ocaml-ulex)
-       ("optcomp" ,optcomp)
        ("easy-format" ,ocaml-easy-format)
        ("base64" ,ocaml-base64)))
+    (home-page "http://www.cduce.org/download.html#side")
     (home-page "http://piqi.org")
     (synopsis "Data serialization and conversion library")
     (description "Piqilib is the common library used by the piqi command-line
 tool and piqi-ocaml.")
     (license license:asl2.0)))
 
+(define-public ocaml4.02-piqilib
+  (package-with-ocaml4.02 ocaml-piqilib))
+
 (define-public ocaml-uuidm
   (package
     (name "ocaml-uuidm")
@@ -3416,7 +4326,8 @@ tool and piqi-ocaml.")
        (modify-phases %standard-phases
          (delete 'configure))))
     (native-inputs
-     `(("opam" ,opam)))
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)))
     (propagated-inputs
      `(("cmdliner" ,ocaml-cmdliner)
        ("topkg" ,ocaml-topkg)))
@@ -3427,21 +4338,24 @@ unique identifiers (UUIDs) version 3, 5 (named based with MD5, SHA-1 hashing)
 and 4 (random based) according to RFC 4122.")
     (license license:isc)))
 
+(define-public ocaml4.02-uuidm
+  (package-with-ocaml4.02 ocaml-uuidm))
+
 (define-public ocaml-graph
   (package
     (name "ocaml-graph")
-    (version "1.8.7")
+    (version "1.8.8")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://ocamlgraph.lri.fr/download/"
                                   "ocamlgraph-" version ".tar.gz"))
               (sha256
                (base32
-                "1845r537swjil2fcj7lgbibc2zybfwqqasrd2s7bncajs83cl1nz"))
-              (patches (search-patches "ocaml-graph-honor-source-date-epoch.patch"))))
+                "0m9g16wrrr86gw4fz2fazrh8nkqms0n863w7ndcvrmyafgxvxsnr"))))
     (build-system ocaml-build-system)
     (arguments
      `(#:install-target "install-findlib"
+       #:tests? #f
        #:phases
        (modify-phases %standard-phases
          (add-before 'configure 'set-shell
@@ -3454,10 +4368,13 @@ and 4 (random based) according to RFC 4122.")
     (description "OCamlgraph is a generic graph library for OCaml.")
     (license license:lgpl2.1)))
 
+(define-public ocaml4.02-graph
+  (package-with-ocaml4.02 ocaml-graph))
+
 (define-public ocaml-piqi
   (package
     (name "ocaml-piqi")
-    (version "0.7.5")
+    (version "0.7.6")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/alavrik/piqi-ocaml/"
@@ -3465,7 +4382,7 @@ and 4 (random based) according to RFC 4122.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0ngz6y8i98i5v2ma8nk6mc83pdsmf2z0ks7m3xi6clfg3zqbddrv"))))
+                "0da0v2v28aj65b0cwpvvmcqyrfvz94pp3j5zgfdr1jrl5s37c21g"))))
     (build-system ocaml-build-system)
     (arguments
      `(#:make-flags
@@ -3477,9 +4394,13 @@ and 4 (random based) according to RFC 4122.")
          (delete 'configure))))
     (native-inputs
      `(("which" ,which)
+       ("camlp4" ,camlp4)
        ("protobuf" ,protobuf))) ; for tests
     (propagated-inputs
-     `(("piqilib" ,ocaml-piqilib)))
+     `(("num" ,ocaml-num)
+       ("piqilib" ,ocaml-piqilib)))
+    (properties
+      `((ocaml4.02-variant . ,(delay ocaml4.02-piqi))))
     (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.
@@ -3487,67 +4408,73 @@ It provides a uniform interface for serializing OCaml data structures to JSON,
 XML and Protocol Buffers formats.")
     (license license:asl2.0)))
 
+(define-public ocaml4.02-piqi
+  (let ((base (package-with-ocaml4.02 (strip-ocaml4.02-variant ocaml-piqi))))
+    (package
+      (inherit base)
+      (propagated-inputs
+       `(("piqilib" ,ocaml4.02-piqilib))))))
+
 (define-public bap
   (package
     (name "bap")
-    (version "1.1.0")
+    (version "1.3.0")
     (home-page "https://github.com/BinaryAnalysisPlatform/bap")
     (source (origin
               (method url-fetch)
               (uri (string-append home-page "/archive/v" version ".tar.gz"))
               (sha256
                (base32
-                "1ms95m4j1qrmy7zqmsn2izh7gq68lnmssl7chyhk977kd3sxj66m"))
+                "0v95v9mp7mg8fj25ry0w7566zd9xp6cs8nnqj4l38q54fb1hfav9"))
               (file-name (string-append name "-" version ".tar.gz"))))
    (build-system ocaml-build-system)
    (native-inputs
-    `(("oasis" ,ocaml-oasis)
+    `(("oasis" ,ocaml4.02-oasis)
       ("clang" ,clang-3.8)
-      ("ounit" ,ocaml-ounit)))
+      ("ounit" ,ocaml4.02-ounit)))
    (propagated-inputs
-    `(("core-kernel" ,ocaml-core-kernel)
-      ("ppx-driver" ,ocaml-ppx-driver)
-      ("uri" ,ocaml-uri)
+    `(("core-kernel" ,ocaml4.02-core-kernel)
+      ("ppx-driver" ,ocaml4.02-ppx-driver)
+      ("bin-prot" ,ocaml4.02-bin-prot)
+      ("uri" ,ocaml4.02-uri)
       ("llvm" ,llvm-3.8)
       ("gmp" ,gmp)
       ("clang-runtime" ,clang-runtime)
-      ("fileutils" ,ocaml-fileutils)
-      ("cmdliner" ,ocaml-cmdliner)
-      ("zarith" ,ocaml-zarith)
-      ("uuidm" ,ocaml-uuidm)
-      ("camlzip" ,camlzip)
+      ("fileutils" ,ocaml4.02-fileutils)
+      ("cmdliner" ,ocaml4.02-cmdliner)
+      ("zarith" ,ocaml4.02-zarith)
+      ("uuidm" ,ocaml4.02-uuidm)
+      ("camlzip" ,ocaml4.02-camlzip)
       ("frontc" ,ocaml-frontc)
-      ("ezjsonm" ,ocaml-ezjsonm)
-      ("ocurl" ,ocaml-ocurl)
-      ("piqi" ,ocaml-piqi)
-      ("ocamlgraph" ,ocaml-graph)
-      ("bitstring" ,ocaml-bitstring)
-      ("ppx-jane" ,ocaml-ppx-jane)
-      ("re" ,ocaml-re)))
+      ("ezjsonm" ,ocaml4.02-ezjsonm)
+      ("ocurl" ,ocaml4.02-ocurl)
+      ("piqi" ,ocaml4.02-piqi)
+      ("ocamlgraph" ,ocaml4.02-graph)
+      ("bitstring" ,ocaml4.02-bitstring)
+      ("ppx-jane" ,ocaml4.02-ppx-jane)
+      ("re" ,ocaml4.02-re)))
    (inputs `(("llvm" ,llvm-3.8)))
    (arguments
-    `(#:use-make? #t
+    `(#:ocaml ,ocaml-4.02
+      #:findlib ,ocaml4.02-findlib
+      #:use-make? #t
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
-          (lambda* (#:key outputs #:allow-other-keys)
-            (zero? (system* "./configure" "--prefix"
-                            (assoc-ref outputs "out")
-                            "--libdir"
-                            (string-append
-                              (assoc-ref outputs "out")
-                              "/lib/ocaml/site-lib")
-                            "--with-llvm-version=3.8"
-                            "--with-llvm-config=llvm-config"
-                            "--enable-everything"))))
-        (add-after 'install 'link-stubs
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let* ((out (assoc-ref outputs "out"))
-                   (stubs (string-append out "/lib/ocaml/site-lib/stubslibs"))
-                   (lib (string-append out "/lib/ocaml/site-lib/bap-plugin-llvm")))
-              (mkdir-p stubs)
-              (symlink (string-append lib "/dllllvm_plugin_stubs.so")
-                       (string-append stubs "/dllllvm_plugin_stubs.so"))))))))
+          (lambda* (#:key outputs inputs #:allow-other-keys)
+            (invoke "./configure" "--prefix"
+                    (assoc-ref outputs "out")
+                    "--libdir"
+                    (string-append
+                      (assoc-ref outputs "out")
+                      "/lib/ocaml/site-lib")
+                    "--with-llvm-version=3.8"
+                    "--with-llvm-config=llvm-config"
+                    "--enable-everything")
+            (substitute* "plugins/objdump/objdump_main.ml"
+              (("Re_perl") "Re.Perl"))
+            (substitute* "oasis/objdump"
+              (("re.pcre") "re.pcre, re.perl")))))))
    (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
@@ -3558,23 +4485,33 @@ the plugins facilitate extensibility, and the frontends serve as entry points.")
 (define-public ocaml-camomile
   (package
     (name "ocaml-camomile")
-    (version "0.8.5")
+    (version "1.0.1")
     (home-page "https://github.com/yoriyuki/Camomile")
     (source (origin
               (method url-fetch)
-              (uri (string-append home-page "/releases/download/rel-" version
-                                  "/camomile-" version ".tar.bz2"))
+              (uri (string-append home-page "/releases/download/" version
+                                  "/camomile-" version ".tbz"))
               (sha256
                (base32
-                "003ikpvpaliy5hblhckfmln34zqz0mk3y2m1fqvbjngh3h2np045"))))
+                "01ssjrqz41jvrqh27jxnh9cx7ywi9b5sgsykd00i7z9nrcwhlfy2"))))
     (build-system ocaml-build-system)
-    (native-inputs `(("camlp4" ,camlp4)))
+    (native-inputs
+     `(("camlp4" ,camlp4)
+       ("dune" ,dune)))
     (arguments
      `(#:phases
        (modify-phases %standard-phases
-         (add-before 'configure 'fix-bin/sh
+         (delete 'configure)
+         (replace 'build
            (lambda _
-             (setenv "CONFIG_SHELL" (which "bash")))))))
+             (invoke "dune" "build" "@install" "--profile" "release")
+             #t))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))
+       #:tests? #f))
     (synopsis "Comprehensive Unicode library")
     (description "Camomile is a Unicode library for OCaml.  Camomile provides
 Unicode character type, UTF-8, UTF-16, UTF-32 strings, conversion to/from about
@@ -3583,6 +4520,9 @@ 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 ocaml4.02-camomile
+  (package-with-ocaml4.02 ocaml-camomile))
+
 (define-public ocaml-jbuilder
   (package
     (name "ocaml-jbuilder")
@@ -3595,10 +4535,12 @@ library is currently designed for Unicode Standard 3.2.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0gcy52y0mkg450yxwszp3lww303a1154566r8jb4hh5l61dh4dwj"))))
+                "1cy07pwvbrlysszs938yd74yyvvbgkffpb82qrjph77zf0h2gdi7"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:phases
+     `(#:ocaml ,ocaml-4.02
+       #:findlib ,ocaml4.02-findlib
+       #:phases
        (modify-phases %standard-phases
          (replace 'configure
            (lambda* (#:key outputs #:allow-other-keys)
@@ -3606,7 +4548,7 @@ library is currently designed for Unicode Standard 3.2.")
                (setenv "PREFIX" out))
              #t)))))
     (native-inputs
-     `(("menhir" ,ocaml-menhir)))
+     `(("menhir" ,ocaml4.02-menhir)))
     (propagated-inputs
      `(("opam" ,opam)))
     (home-page "https://github.com/janestreet/jbuilder")
@@ -3654,10 +4596,13 @@ 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 ocaml4.02-zed
+  (package-with-ocaml4.02 ocaml-zed))
+
 (define-public ocaml-lambda-term
   (package
     (name "ocaml-lambda-term")
-    (version "1.11")
+    (version "1.13")
     (source
      (origin
        (method url-fetch)
@@ -3665,26 +4610,27 @@ connect an engine to your inputs and rendering functions to get an editor.")
                            version ".tar.gz"))
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
-        (base32 "10lx1jqgmmfwwlv64di4a8nia9l53v7179z70n9fx6aq5l7r8nba"))))
+        (base32 "1hy5ryagqclgdm9lzh1qil5mrynlypv7mn6qm858hdcnmz9zzn0l"))))
     (build-system ocaml-build-system)
     (arguments
-     `(#:test-target "test"
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
          (delete 'configure)
-         ;; currently, ocaml-lwt is an old version of lwt from before lwt.react
-         ;; was split into a separate module called lwt_react
-         (add-before 'build 'use-old-lwt-react-name
+         (replace 'build
            (lambda _
-             (substitute* "src/jbuild" (("lwt_react") "lwt.react"))))
+             (invoke "dune" "build" "@install" "--profile" "release")
+             #t))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out")))
-               (zero? (system* "jbuilder" "install" "--prefix" out))))))))
+             (invoke "dune" "install"
+                     "--prefix" (assoc-ref outputs "out"))
+             #t)))
+       #:tests? #f))
     (native-inputs
-     `(("jbuilder" ,ocaml-jbuilder)))
+     `(("dune" ,dune)))
     (propagated-inputs
      `(("lwt" ,ocaml-lwt)
+       ("lwt-log" ,ocaml-lwt-log)
        ("zed" ,ocaml-zed)))
     (home-page "https://github.com/diml/lambda-term")
     (synopsis "Terminal manipulation library for OCaml")
@@ -3696,18 +4642,21 @@ manipulation than, for example, ncurses, by providing a native OCaml interface
 instead of bindings to a C library.")
     (license license:bsd-3)))
 
+(define-public ocaml4.02-lambda-term
+  (package-with-ocaml4.02 ocaml-lambda-term))
+
 (define-public ocaml-utop
   (package
     (name "ocaml-utop")
-    (version "2.0.2")
+    (version "2.2.0")
     (source (origin
               (method url-fetch)
-              (uri (string-append "https://github.com/diml/utop/archive/"
+              (uri (string-append "https://github.com/ocaml-community/utop/archive/"
                                   version ".tar.gz"))
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0rglznh4prcix8spi3f060jz2gngk7x8vkd291fxs10b88aqcpxf"))))
+                "1414snwmqaxs1x8wbpjf6fn3jsl01hq0phrr7639xmb5vh15mgd4"))))
     (build-system gnu-build-system)
     (arguments
      `(#:test-target "test"
@@ -3761,6 +4710,8 @@ sensitive completion, colors, and more.")
        #:phases
        (modify-phases %standard-phases
          (delete 'configure))))
+    (native-inputs
+     `(("ocamlbuild" ,ocamlbuild)))
     (inputs
      `(("topkg" ,ocaml-topkg)
        ("opam" ,opam)))
@@ -3773,7 +4724,7 @@ long and size_t whose sizes depend on the host platform.")
 (define-public ocaml-ctypes
   (package
    (name "ocaml-ctypes")
-   (version "0.13.1")
+   (version "0.14.0")
    (home-page "https://github.com/ocamllabs/ocaml-ctypes")
    (source (origin
              (method url-fetch)
@@ -3781,10 +4732,11 @@ long and size_t whose sizes depend on the host platform.")
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
-               "17w0pr5k0zjcjns4y9n36rjpfl35zhvp3h8ggqs9lz12qhshdk2m"))))
+               "0zrsd42q2nciyg9375g2kydqax6ay299rhyfgms59qiw7d9ylyp9"))))
    (build-system ocaml-build-system)
    (arguments
-    `(#:make-flags
+    `(#:tests? #f; require an old lwt
+      #:make-flags
       (list (string-append "INSTALL_HEADERS = $(wildcard $($(PROJECT).dir)/*.h)"))
       #:phases
       (modify-phases %standard-phases
@@ -3832,7 +4784,8 @@ without writing or generating any C!")
     `(("topkg" ,ocaml-topkg)
       ("opam" ,opam)))
    (native-inputs
-    `(("astring" ,ocaml-astring)))
+    `(("astring" ,ocaml-astring)
+      ("ocamlbuild" ,ocamlbuild)))
    (synopsis "OCamlbuild plugin for C stubs")
    (description "Ocb-stubblr is about ten lines of code that you need to
 repeat over, over, over and over again if you are using ocamlbuild to build
@@ -3860,7 +4813,8 @@ OCaml projects that contain C stubs.")
        (modify-phases %standard-phases
          (delete 'configure))))
     (native-inputs
-     `(("opam" ,opam)
+     `(("ocamlbuild" ,ocamlbuild)
+       ("opam" ,opam)
        ("pkg-config" ,pkg-config)))
     (inputs
      `(("topkg" ,ocaml-topkg)
diff --git a/gnu/packages/patches/ocaml-bisect-fix-camlp4-in-another-directory.patch b/gnu/packages/patches/ocaml-bisect-fix-camlp4-in-another-directory.patch
index 2056b42356..fd9a4c9401 100644
--- a/gnu/packages/patches/ocaml-bisect-fix-camlp4-in-another-directory.patch
+++ b/gnu/packages/patches/ocaml-bisect-fix-camlp4-in-another-directory.patch
@@ -1,16 +1,28 @@
-From 26cac62fe0154cf65c06faaee10805531e9dade8 Mon Sep 17 00:00:00 2001
+From bc3b353cb2f26cf10aa5c5caebddf6d3d5b1e318 Mon Sep 17 00:00:00 2001
 From: Julien Lepiller <julien@lepiller.eu>
-Date: Wed, 14 Dec 2016 14:14:59 +0100
+Date: Fri, 21 Sep 2018 22:31:29 +0200
 Subject: [PATCH] fix camlp4 in another directory
 
 ---
- Makefile        | 11 ++++++-----
- configure       | 13 ++++++++++++-
- myocamlbuild.ml |  2 +-
- 3 files changed, 19 insertions(+), 7 deletions(-)
+ Makefile                              | 11 ++++++-----
+ configure                             | 13 ++++++++++++-
+ tests/Makefile                        |  2 +-
+ tests/camlp4-comments/Makefile        |  2 +-
+ tests/camlp4-exclude-file/Makefile    |  2 +-
+ tests/camlp4-exclude/Makefile         |  2 +-
+ tests/camlp4-instrument-fast/Makefile |  2 +-
+ tests/camlp4-instrument/Makefile      |  2 +-
+ tests/combine-expr/Makefile           |  2 +-
+ tests/ppx-comments/Makefile           |  2 +-
+ tests/ppx-exclude-file/Makefile       |  2 +-
+ tests/ppx-exclude/Makefile            |  2 +-
+ tests/ppx-instrument-fast/Makefile    |  2 +-
+ tests/ppx-instrument/Makefile         |  2 +-
+ tests/report/Makefile                 |  2 +-
+ 15 files changed, 31 insertions(+), 19 deletions(-)
 
 diff --git a/Makefile b/Makefile
-index 4a8ce17..d94a6d5 100644
+index b0980ee..6697922 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -25,7 +25,7 @@ PATH_BUILD=$(PATH_BASE)/_build
@@ -19,12 +31,12 @@ index 4a8ce17..d94a6d5 100644
  PATH_TESTS=$(PATH_BASE)/tests
 -PATH_INSTALL=$(PATH_OCAML_PREFIX)/lib/ocaml/bisect
 +PATH_INSTALL=$(PREFIX)/lib/ocaml/bisect
-
-
+ 
+ 
  # DEFINITIONS
 @@ -33,7 +33,8 @@ PATH_INSTALL=$(PATH_OCAML_PREFIX)/lib/ocaml/bisect
  PROJECT_NAME=bisect
- OCAMLBUILD=$(PATH_OCAML_PREFIX)/bin/ocamlbuild
+ OCAMLBUILD=ocamlbuild
  OCAMLBUILD_ENV=WARNINGS=$(WARNINGS) PATH_OCAML_PREFIX=$(PATH_OCAML_PREFIX)
 -OCAMLBUILD_FLAGS=-classic-display -no-links
 +CAMLP4_INCLUDE=$(shell test -z $(CAMLP4_LIBDIR) || echo "-cflags -I,$(CAMLP4_LIBDIR)")
@@ -33,22 +45,22 @@ index 4a8ce17..d94a6d5 100644
  MODULES_MLPACK=$(PROJECT_NAME).mlpack
  MODULES_MLPACK_PP=$(PROJECT_NAME)_pp.mlpack
 @@ -80,11 +81,11 @@ veryclean: clean
-	rm -f $(PATH_OCAMLDOC)/*.html $(PATH_OCAMLDOC)/*.css
-
+ 	rm -f $(PATH_OCAMLDOC)/*.html $(PATH_OCAMLDOC)/*.css
+ 
  install: FORCE
 -	cp $(PATH_BUILD)/src/report/report.byte $(PATH_OCAML_PREFIX)/bin/bisect-report; \
 +	cp $(PATH_BUILD)/src/report/report.byte $(PREFIX)/bin/bisect-report; \
-	if [ "$(PPX)" = "TRUE" ]; then \
+ 	if [ "$(PPX)" = "TRUE" ]; then \
 -	  cp $(PATH_BUILD)/src/syntax/bisect_ppx.byte $(PATH_OCAML_PREFIX)/bin; \
 +	  cp $(PATH_BUILD)/src/syntax/bisect_ppx.byte $(PREFIX)/bin; \
-	fi; \
--	(test -x $(PATH_OCAML_PREFIX)/bin/ocamlopt && cp $(PATH_BUILD)/src/report/report.native $(PATH_OCAML_PREFIX)/bin/bisect-report.opt || true); \
-+	(test -x $(PATH_OCAML_PREFIX)/bin/ocamlopt && cp $(PATH_BUILD)/src/report/report.native $(PREFIX)/bin/bisect-report.opt || true); \
-	if [ -x "$(PATH_OCAMLFIND)" ]; then \
-	  $(PATH_OCAMLFIND) query $(PROJECT_NAME) && $(PATH_OCAMLFIND) remove $(PROJECT_NAME) || true; \
-	  $(PATH_OCAMLFIND) install $(PROJECT_NAME) META -optional \
+ 	fi; \
+-	(which ocamlopt && cp $(PATH_BUILD)/src/report/report.native $(PATH_OCAML_PREFIX)/bin/bisect-report.opt || true); \
++	(which ocamlopt && cp $(PATH_BUILD)/src/report/report.native $(PREFIX)/bin/bisect-report.opt || true); \
+ 	if [ -x "$(PATH_OCAMLFIND)" ]; then \
+ 	  $(PATH_OCAMLFIND) query $(PROJECT_NAME) && $(PATH_OCAMLFIND) remove $(PROJECT_NAME) || true; \
+ 	  $(PATH_OCAMLFIND) install $(PROJECT_NAME) META -optional \
 diff --git a/configure b/configure
-index bb7ebf4..61a3095 100755
+index bb7ebf4..43ef46b 100755
 --- a/configure
 +++ b/configure
 @@ -21,7 +21,9 @@
@@ -79,47 +91,193 @@ index bb7ebf4..61a3095 100755
              ppx='TRUE';;
          *)
 -            echo "usage: $0 [-ocaml-prefix <path>] [-ocamlfind <path>] [-no-native-dynlink] [-devel]";
-+            echo "usage: $0 [-prefix <path>] [-ocaml-prefix <path>] [-ocamlfind <path>] [-no-native-dynlink] [-devel]";
++            echo "usage: $0 [-prefix <path>] [-ocaml-prefix <path>] [-camlp4-prefix <path>] [-ocamlfind <path>] [-no-native-dynlink] [-devel]";
              exit 1;;
          esac
          shift
 @@ -57,6 +63,9 @@ if [ "$no_camlp4" = "TRUE" -a "$ppx" = "FALSE" ]; then
    exit 1
  fi
-
+ 
 +# prefix default value
 +test -z $prefix && prefix=$ocaml_prefix
 +
  # make options
  make_quiet=`make -f - <<EOF
  default: gnumake
-@@ -67,11 +76,13 @@ EOF`
+@@ -66,7 +75,9 @@ EOF`
+ 
  # file creation
  echo "# timestamp: `date`" > Makefile.config
++echo "PREFIX=$prefix" >> Makefile.config
  echo "PATH_OCAML_PREFIX=$ocaml_prefix" >> Makefile.config
 +echo "PATH_CAMLP4_PREFIX=$camlp4_prefix" >> Makefile.config
  echo "PATH_OCAMLFIND=$ocamlfind" >> Makefile.config
  echo "NATIVE_DYNLINK=$native_dynlink" >> Makefile.config
  echo "WARNINGS=$devel" >> Makefile.config
- echo "NO_CAMLP4=$no_camlp4" >> Makefile.config
- echo "PPX=$ppx" >> Makefile.config
- echo "MAKE_QUIET=$make_quiet" >> Makefile.config
-+echo "PREFIX=$prefix" >> Makefile.config
- echo "" >> Makefile.config
- echo 'Makefile.config successfully created'
-diff --git a/myocamlbuild.ml b/myocamlbuild.ml
-index 8aa25fd..09a7d48 100644
---- a/myocamlbuild.ml
-+++ b/myocamlbuild.ml
-@@ -70,7 +70,7 @@ let () =
-     | After_rules ->
-         let camlp4of =
-           try
--            let path_bin = Filename.concat (Sys.getenv "PATH_OCAML_PREFIX") "bin" in
-+            let path_bin = Filename.concat (Sys.getenv "PATH_CAMLP4_PREFIX") "bin" in
-             Filename.concat path_bin "camlp4of"
-           with _ -> "camlp4of" in
-         flag ["ocaml"; "compile"; "pp_camlp4of"] (S[A"-pp"; A camlp4of]);
---
-2.7.4
+diff --git a/tests/Makefile b/tests/Makefile
+index 1aba27f..9642323 100644
+--- a/tests/Makefile
++++ b/tests/Makefile
+@@ -41,7 +41,7 @@ one: FORCE
+ 	else \
+ 	  echo "Running tests for '$(NAME)'..." | tee -a _log; \
+           (cd $(NAME) && \
+-	    $(MAKE) PATH_OCAML_BIN=$(PATH_OCAML_PREFIX)/bin \
++	    $(MAKE) PATH_OCAML_BIN=$(PATH_OCAML_PREFIX)/bin PATH_CAMLP4_PREFIX=$(PATH_CAMLP4_PREFIX) \
+ 	    COMPILER=ocamlc EXECUTABLE=bytecode RUN=./ LIB_EXT=cma EXE_SUFFIX='' \
+ 	    REPORT=../../_build/src/report/report.byte && \
+ 	  cd ..) || echo '*** error' >> _log; \
+diff --git a/tests/camlp4-comments/Makefile b/tests/camlp4-comments/Makefile
+index 33fca72..a918118 100644
+--- a/tests/camlp4-comments/Makefile
++++ b/tests/camlp4-comments/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cmp
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -o $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -o $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cmp
+diff --git a/tests/camlp4-exclude-file/Makefile b/tests/camlp4-exclude-file/Makefile
+index ab13983..e2520fa 100644
+--- a/tests/camlp4-exclude-file/Makefile
++++ b/tests/camlp4-exclude-file/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cmp
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -exclude-file exclusions -o $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -exclude-file exclusions -o $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cmp
+diff --git a/tests/camlp4-exclude/Makefile b/tests/camlp4-exclude/Makefile
+index 18aada4..d71a7bc 100644
+--- a/tests/camlp4-exclude/Makefile
++++ b/tests/camlp4-exclude/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cmp
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -exclude 'f.*' -o $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -exclude 'f.*' -o $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cmp
+diff --git a/tests/camlp4-instrument-fast/Makefile b/tests/camlp4-instrument-fast/Makefile
+index f60767f..8506e38 100644
+--- a/tests/camlp4-instrument-fast/Makefile
++++ b/tests/camlp4-instrument-fast/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cmp
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo -mode fast $$file -o $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo -mode fast $$file -o $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cmp
+diff --git a/tests/camlp4-instrument/Makefile b/tests/camlp4-instrument/Makefile
+index 33fca72..a918118 100644
+--- a/tests/camlp4-instrument/Makefile
++++ b/tests/camlp4-instrument/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cmp
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -o $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/camlp4o$(EXE_SUFFIX) str.cma ../../_build/bisect_pp.cmo $$file -o $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cmp
+diff --git a/tests/combine-expr/Makefile b/tests/combine-expr/Makefile
+index 46ae9eb..e8e2af2 100644
+--- a/tests/combine-expr/Makefile
++++ b/tests/combine-expr/Makefile
+@@ -1,4 +1,4 @@
+-COMPILE_FLAGS=-I ../../_build -pp '$(PATH_OCAML_BIN)/camlp4o str.cma -I ../../_build bisect_pp.cmo' bisect.$(LIB_EXT) $(FLAGS)
++COMPILE_FLAGS=-I ../../_build -pp '$(PATH_CAMLP4_PREFIX)/bin/camlp4o str.cma -I ../../_build bisect_pp.cmo' bisect.$(LIB_EXT) $(FLAGS)
+ 
+ default: clean compile run report
+ 
+diff --git a/tests/ppx-comments/Makefile b/tests/ppx-comments/Makefile
+index f8c645a..667526f 100644
+--- a/tests/ppx-comments/Makefile
++++ b/tests/ppx-comments/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cm*
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte' -dsource $$file 2> $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte' -dsource $$file 2> $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cm*
+diff --git a/tests/ppx-exclude-file/Makefile b/tests/ppx-exclude-file/Makefile
+index a575a77..0dd1a20 100644
+--- a/tests/ppx-exclude-file/Makefile
++++ b/tests/ppx-exclude-file/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cm*
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte -exclude-file exclusions' -dsource $$file 2> $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte -exclude-file exclusions' -dsource $$file 2> $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cm*
+diff --git a/tests/ppx-exclude/Makefile b/tests/ppx-exclude/Makefile
+index a517af4..f502a42 100644
+--- a/tests/ppx-exclude/Makefile
++++ b/tests/ppx-exclude/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cm*
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/ocamlc -c -I ../../_build -ppx "../../_build/src/syntax/bisect_ppx.byte -exclude 'f.*'" -dsource $$file 2> $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/ocamlc -c -I ../../_build -ppx "../../_build/src/syntax/bisect_ppx.byte -exclude 'f.*'" -dsource $$file 2> $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cm*
+diff --git a/tests/ppx-instrument-fast/Makefile b/tests/ppx-instrument-fast/Makefile
+index da78bb6..1195988 100644
+--- a/tests/ppx-instrument-fast/Makefile
++++ b/tests/ppx-instrument-fast/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cm*
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte -mode fast' -dsource $$file 2> $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte -mode fast' -dsource $$file 2> $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cm*
+diff --git a/tests/ppx-instrument/Makefile b/tests/ppx-instrument/Makefile
+index f8c645a..667526f 100644
+--- a/tests/ppx-instrument/Makefile
++++ b/tests/ppx-instrument/Makefile
+@@ -2,7 +2,7 @@ default:
+ 	@rm -fr *.result *.cm*
+ 	@for file in *.ml; do \
+ 		echo "     testing '$$file' ..."; \
+-		$(PATH_OCAML_BIN)/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte' -dsource $$file 2> $$file.result; \
++		$(PATH_CAMLP4_PREFIX)/bin/ocamlc -c -I ../../_build -ppx '../../_build/src/syntax/bisect_ppx.byte' -dsource $$file 2> $$file.result; \
+ 		diff -q $$file.reference $$file.result || exit 1; \
+ 	done
+ 	@rm -fr *.result *.cm*
+diff --git a/tests/report/Makefile b/tests/report/Makefile
+index a7ffe44..a968bf9 100644
+--- a/tests/report/Makefile
++++ b/tests/report/Makefile
+@@ -1,4 +1,4 @@
+-COMPILE_FLAGS=-I ../../_build -pp '$(PATH_OCAML_BIN)/camlp4o str.cma -I ../../_build bisect_pp.cmo' bisect.$(LIB_EXT) $(FLAGS)
++COMPILE_FLAGS=-I ../../_build -pp '$(PATH_CAMLP4_PREFIX)/bin/camlp4o str.cma -I ../../_build bisect_pp.cmo' bisect.$(LIB_EXT) $(FLAGS)
+ XMLLINT=$(shell which xmllint)
+ 
+ default: clean compile run report
+-- 
+2.18.0
 
diff --git a/guix/build-system/ocaml.scm b/guix/build-system/ocaml.scm
index 34a22ecffa..e5b715f55d 100644
--- a/guix/build-system/ocaml.scm
+++ b/guix/build-system/ocaml.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2016, 2017 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2016, 2017, 2018 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -28,7 +28,9 @@
   #:use-module (srfi srfi-1)
   #:export (%ocaml-build-system-modules
             package-with-ocaml4.01
+            package-with-ocaml4.02
             strip-ocaml4.01-variant
+            strip-ocaml4.02-variant
             ocaml-build
             ocaml-build-system))
 
@@ -82,6 +84,14 @@
   (let ((module (resolve-interface '(gnu packages ocaml))))
     (module-ref module 'ocaml4.01-findlib)))
 
+(define (default-ocaml4.02)
+  (let ((ocaml (resolve-interface '(gnu packages ocaml))))
+    (module-ref ocaml 'ocaml-4.02)))
+
+(define (default-ocaml4.02-findlib)
+  (let ((module (resolve-interface '(gnu packages ocaml))))
+    (module-ref module 'ocaml4.02-findlib)))
+
 (define* (package-with-explicit-ocaml ocaml findlib old-prefix new-prefix
                                        #:key variant-property)
   "Return a procedure of one argument, P.  The procedure creates a package
@@ -139,12 +149,24 @@ pre-defined variants."
                                "ocaml-" "ocaml4.01-"
                                #:variant-property 'ocaml4.01-variant))
 
+(define package-with-ocaml4.02
+  (package-with-explicit-ocaml (delay (default-ocaml4.02))
+                               (delay (default-ocaml4.02-findlib))
+                               "ocaml-" "ocaml4.02-"
+                               #:variant-property 'ocaml4.02-variant))
+
 (define (strip-ocaml4.01-variant p)
   "Remove the 'ocaml4.01-variant' property from P."
   (package
     (inherit p)
     (properties (alist-delete 'ocaml4.01-variant (package-properties p)))))
 
+(define (strip-ocaml4.02-variant p)
+  "Remove the 'ocaml4.02-variant' property from P."
+  (package
+    (inherit p)
+    (properties (alist-delete 'ocaml4.02-variant (package-properties p)))))
+
 (define* (lower name
                 #:key source inputs native-inputs outputs system target
                 (ocaml (default-ocaml))