gnu: Default to Guile 3.0.

This patch changes three things:

  1. package derivations are built using Guile 3.0;

  2. 'gexp->derivation' defaults to Guile 3.0;

  3. "guile3.0-" packages are deprecated aliases for the regular
     package, which now depends on Guile 3.0; "guile2.2-" packages are
     introduced; "guile-next" is renamed to "guile".

* gnu/packages/guile.scm (guile-2.0/fixed): Remove.
(guile-3.0/fixed): New variable.
(package-for-guile-3.0): Remove.
(package-for-guile-2.2): New variable.
(define-deprecated-guile3.0-package): New macro.
(guile-3.0)[name]: Change to "guile".
(guile-json-3)[native-inputs, inputs]: New fields.
(guile2.2-json): New variable.
(guile3.0-json): Deprecate.
(guile-gdbm-ffi)[native-inputs]: Switch to GUILE-3.0.
(guile2.2-gdbm-ffi): New variable.
(guile3.0-gdbm-ffi): Deprecate.
(guile-sqlite3): Switch to GUILE-3.0.
(guile2.2-sqlite3): New variable.
(guile3.0-sqlite3): Deprecate.
(guile-bytestructures): Switch to GUILE-3.0.
(guile2.2-bytestructures): New variable.
(guile3.0-bytestructures): Deprecate.
(guile-git): Switch to GUILE-3.0.
(guile2.2-git): New variable.
(guile3.0-git): Deprecate.
(guile-2.2/bug-fix):
* gnu/packages/ci.scm (cuirass): Switch to GUILE-3.0.
* gnu/packages/emacs-xyz.scm (emacs-guix): Switch to GUILE-3.0.
* gnu/packages/gtk.scm (guile-cairo)[arguments]: New field.
Switch to GUILE-3.0.
(guile2.2-cairo): New variable.
(guile3.0-cairo): Deprecate.
(guile-rsvg): Switch to GUILE-3.0.
(guile2.2-cairo): New variable.
(guile3.0-cairo): Deprecate.
(guile-present): Switch to GUILE-3.0.
(guile2.2-present): New variable.
(guile3.0-present): Deprecate.
(guile-gnome)[propagated-inputs]: Use GUILE2.2-CAIRO and GUILE2.2-LIB.
* gnu/packages/guile-xyz.scm (guile-fibers)[arguments]: Add #:configure-flags.
Switch to GUILE-3.0.
(guile2.2-fibers): New variable.
(guile3.0-fibers): Deprecate.
(guile-syntax-highlight): Switch to GUILE-3.0.
(guile2.2-syntax-highlight): New variable.
(guile3.0-syntax-highlight): Deprecate.
(guile-colorized): Switch to GUILE-3.0.
(guile2.2-colorized): New variable.
(guile3.0-colorized): Deprecate.
(guile-pfds): Switch to GUILE-3.0.
(guile2.2-pfds): New variable.
(guile3.0-pfds): Deprecate.
(guile-simple-zmq): Switch to GUILE-3.0.
(guile2.2-simple-zmq): New variable.
(guile3.0-simple-zmq): Deprecate.
(guile-newt): Switch to GUILE-3.0.
(guile2.2-newt): New variable.
(guile3.0-newt): Deprecate.
(guile-parted): Switch to GUILE-3.0.
(guile2.2-parted): New variable.
(guile3.0-parted): Deprecate.
(guile-config): Switch to GUILE-3.0.
(guile2.2-config): New variable.
(guile3.0-config): Deprecate.
(guile-hall): Switch to GUILE-3.0.
(guile2.2-hall): New variable.
(guile3.0-hall): Deprecate.
(guile-ics): Switch to GUILE-3.0.
(guile2.2-ics): New variable.
(guile3.0-ics): Deprecate.
(guile-wisp)[arguments]: Add 'support-guile-3.0' phase.
Switch to GUILE-3.0.
(guile2.2-wisp): New variable.
(guile3.0-wisp): Deprecate.
(guile-lib): Switch to GUILE-3.0.
(guile2.2-lib): New variable.
(guile3.0-lib): Deprecate.
(guile-minikanren): Switch to GUILE-3.0.
(guile2.2-minikanren): New variable.
(guile3.0-minikanren): Deprecate.
(guile-irregex): Switch to GUILE-3.0.
(guile2.2-irregex): New variable.
(guile3.0-irregex): Deprecate.
(haunt): Switch to GUILE-3.0, and remove GUILE-READER.
(guile2.2-haunt): New variable.
(guile3.0-haunt): Deprecate.
(guile-commonmark): Switch to GUILE-3.0.
(guile2.2-commonmark): New variable.
(guile3.0-commonmark): Deprecate.
(mcron): Switch to GUILE-3.0.
(guile2.0-mcron): New variable.
(guile3.0-mcron): Deprecate.
(guile-picture-language): Switch to GUILE-3.0.
(guile2.2-picture-language): New variable.
(guile3.0-picture-language): Deprecate.
(guile-gi): Switch to GUILE-3.0.
(guile2.2-gi): New variable.
(guile3.0-gi): Deprecate.
(guile-hashing): Switch to GUILE-3.0.
(guile2.2-hashing): New variable.
(guile3.0-hashing): Deprecate.
* gnu/packages/package-management.scm (guix): Switch to GUILE-3.0.
(guile2.2-guix): New variable.
(guile3.0-guix): Deprecate.
(gwl): Replace "guile3.0-" with "guile-".
(guix-jupyter)[source]: Adjust for Guile 3.0.
Switch to GUILE-3.0.
* gnu/packages/ssh.scm (guile-ssh): Switch to GUILE-3.0.
(guile2.2-ssh): New variable.
(guile3.0-ssh): Deprecate.
* gnu/packages/admin.scm (shepherd): Switch to GUILE-3.0.
(guile2.2-shepherd): New variable.
(guile3.0-shepherd): Deprecate.
* gnu/packages/mail.scm (mailutils): Switch to GUILE-3.0.
(guile2.2-mailutils): New variable.
(guile3.0-mailutils): Deprecate.
* gnu/packages/plotutils.scm (guile-charting): Switch to GUILE-3.0.
(guile2.2-charting): New variable.
(guile3.0-charting): Deprecate.
* gnu/packages/version-control.scm (libgit2): Switch to GUILE-3.0.
* gnu/packages/vpn.scm (vpnc-scripts): Switch to GUILE-3.0.
* gnu/packages/web.scm (guix-data-service): Switch to GUILE-3.0.
(hpcguix-web): Switch to GUILE-3.0.
* guix/self.scm (specification->package): Refer to the "guile-" variants
instead of "guile3.0-".
* guix/gexp.scm (default-guile): Change to GUILE-3.0.
* build-aux/build-self.scm (build): #:guile-version defaults to "3.0".
* gnu/packages/commencement.scm (guile-final): Base on GUILE-3.0/FIXED.

18 files changed, 358 insertions, 233 deletions

diff --git a/build-aux/build-self.scm b/build-aux/build-self.scm
index f2e785b7f1..b30adfeb9f 100644
--- a/build-aux/build-self.scm
+++ b/build-aux/build-self.scm
@@ -383,11 +383,11 @@ interface (FFI) of Guile.")
                 #:key verbose? (version (date-version-string)) system
                 (pull-version 0)
 
-                ;; For the standalone Guix, default to Guile 2.2.  For old
+                ;; For the standalone Guix, default to Guile 3.0.  For old
                 ;; versions of 'guix pull' (pre-0.15.0), we have to use the
                 ;; same Guile as the current one.
                 (guile-version (if (> pull-version 0)
-                                   "2.2"
+                                   "3.0"
                                    (effective-version)))
 
                 #:allow-other-keys
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 63ee6dd53f..90252fc413 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -211,10 +211,10 @@ and provides a \"top-like\" mode (monitoring).")
      `(("pkg-config" ,pkg-config)
 
        ;; This is the Guile we use as a cross-compiler...
-       ("guile" ,guile-2.2)))
+       ("guile" ,guile-3.0)))
     (inputs
      ;; ... and this is the one that appears in shebangs when cross-compiling.
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
 
        ;; The 'shepherd' command uses Readline when used interactively.  It's
        ;; an unusual use case though, so we don't propagate it.
@@ -228,15 +228,18 @@ interface and is based on GNU Guile.")
     (license license:gpl3+)
     (home-page "https://www.gnu.org/software/shepherd/")))
 
-(define-public guile3.0-shepherd
+(define-public guile2.2-shepherd
   (package
     (inherit shepherd)
-    (name "guile3.0-shepherd")
+    (name "guile2.2-shepherd")
     (native-inputs
      `(("pkg-config" ,pkg-config)
-       ("guile" ,guile-next)))
+       ("guile" ,guile-2.2)))
     (inputs
-     `(("guile" ,guile-next)))))
+     `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-shepherd
+  (deprecated-package "guile3.0-shepherd" shepherd))
 
 (define-public cloud-utils
   (package
diff --git a/gnu/packages/ci.scm b/gnu/packages/ci.scm
index 24de11b713..a5474e0a96 100644
--- a/gnu/packages/ci.scm
+++ b/gnu/packages/ci.scm
@@ -120,7 +120,7 @@
                    `("GUILE_LOAD_COMPILED_PATH" ":" prefix (,objs)))
                  #t))))))
       (inputs
-       `(("guile" ,guile-2.2)
+       `(("guile" ,guile-3.0)
          ("guile-fibers" ,guile-fibers)
          ("guile-gcrypt" ,guile-gcrypt)
          ("guile-json" ,guile-json-3)
diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index cebb4b5a68..65797af244 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -3589,7 +3589,7 @@ exec ~a/bin/~a-~a -B~a/lib -Wl,-dynamic-linker -Wl,~a/~a \"$@\"~%"
   ;; This package must be public because other modules refer to it.  However,
   ;; mark it as hidden so that 'fold-packages' ignores it.
   (with-boot4 (hidden-package
-               (package-with-bootstrap-guile guile-2.2/fixed))))
+               (package-with-bootstrap-guile guile-3.0/fixed))))
 
 (define glibc-utf8-locales-final
   ;; Now that we have GUILE-FINAL, build the UTF-8 locales.  They are needed
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index e2b067e1dc..092bb6f2a0 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
@@ -2207,7 +2207,7 @@ type, for example: packages, buffers, files, etc.")
      `(("pkg-config" ,pkg-config)
        ("emacs" ,emacs-minimal)))
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("guix" ,guix)))
     (propagated-inputs
      `(("geiser" ,emacs-geiser)
diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index 5d389d165c..9b6019007e 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015, 2018 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
@@ -493,7 +493,7 @@ gpgpme starting with version 1.7.")
        ("texinfo" ,texinfo)
        ("guile" ,guile-2.2)))
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("libgcrypt" ,libgcrypt)))
     (synopsis "Cryptography library for Guile using Libgcrypt")
     (description
@@ -514,17 +514,17 @@ interface (FFI) of Guile.")
      `(("guile" ,guile-2.0)
        ,@(alist-delete "guile" (package-inputs guile-gcrypt))))))
 
-(define-public guile3.0-gcrypt
+(define-public guile2.2-gcrypt
   (package
     (inherit guile-gcrypt)
-    (name "guile3.0-gcrypt")
-    (native-inputs
-     `(("guile" ,guile-next)
-       ,@(alist-delete "guile" (package-native-inputs guile-gcrypt))))
+    (name "guile2.2-gcrypt")
     (inputs
-     `(("guile" ,guile-next)
+     `(("guile" ,guile-2.2)
        ,@(alist-delete "guile" (package-inputs guile-gcrypt))))))
 
+(define-public guile3.0-gcrypt
+  (deprecated-package "guile3.0-gcrypt" guile-gcrypt))
+
 (define-public python-gpg
   (package
     (name "python-gpg")
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index 76766a1b1f..10173bf124 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -875,10 +875,14 @@ application suites.")
                        "#include <libguile.h>\n#include <string.h>\n"))
                     #t)))))
     (build-system gnu-build-system)
+    (arguments
+     ;; Uses of 'scm_t_uint8' & co. are deprecated; don't stop the build
+     ;; because of them.
+     '(#:configure-flags '("--disable-Werror")))
     (inputs
      `(("guile-lib" ,guile-lib)
        ("expat" ,expat)
-       ("guile" ,guile-2.2)))
+       ("guile" ,guile-3.0)))
     (propagated-inputs
      ;; The .pc file refers to 'cairo'.
      `(("cairo" ,cairo)))
@@ -895,22 +899,19 @@ graphics library with all of the benefits of Scheme: memory management,
 exceptions, macros, and a dynamic programming environment.")
     (license license:lgpl3+)))
 
-(define-public guile3.0-cairo
+(define-public guile2.2-cairo
   (package
     (inherit guile-cairo)
-    (name "guile3.0-cairo")
-    (arguments
-     (substitute-keyword-arguments (package-arguments guile-cairo)
-       ((#:configure-flags flags ''())
-        ;; Uses of 'scm_t_uint8' & co. are deprecated; don't stop the build
-        ;; because of them.
-        `(cons "--disable-Werror" ,flags))))
+    (name "guile2.2-cairo")
     (inputs
-     `(("guile" ,guile-3.0)
-       ("guile-lib" ,guile3.0-lib)
+     `(("guile" ,guile-2.2)
+       ("guile-lib" ,guile2.2-lib)
        ,@(fold alist-delete (package-inputs guile-cairo)
                '("guile" "guile-lib"))))))
 
+(define-public guile3.0-cairo
+  (deprecated-package "guile3.0-cairo" guile-cairo))
+
 (define-public guile-rsvg
   ;; Use a recent snapshot that supports Guile 2.2 and beyond.
   (let ((commit "05c6a2fd67e4fea1a7c3ff776729dc931bae6678")
@@ -947,7 +948,7 @@ exceptions, macros, and a dynamic programming environment.")
                        ("automake" ,automake)
                        ("libtool" ,libtool)
                        ("texinfo" ,texinfo)))
-      (inputs `(("guile" ,guile-2.2)
+      (inputs `(("guile" ,guile-3.0)
                 ("librsvg" ,librsvg)
                 ("guile-lib" ,guile-lib)))        ;for (unit-test)
       (propagated-inputs `(("guile-cairo" ,guile-cairo)))
@@ -958,16 +959,19 @@ images onto Cairo surfaces.")
       (home-page "http://wingolog.org/projects/guile-rsvg/")
       (license license:lgpl2.1+))))
 
-(define-public guile3.0-rsvg
+(define-public guile2.2-rsvg
   (package
     (inherit guile-rsvg)
-    (name "guile3.0-rsvg")
+    (name "guile2.2-rsvg")
     (inputs
-     `(("guile" ,guile-3.0)
-       ("guile-lib" ,guile3.0-lib)
+     `(("guile" ,guile-2.2)
+       ("guile-lib" ,guile2.2-lib)
        ,@(fold alist-delete (package-inputs guile-rsvg)
                '("guile" "guile-lib"))))
-    (propagated-inputs `(("guile-cairo" ,guile3.0-cairo)))))
+    (propagated-inputs `(("guile-cairo" ,guile2.2-cairo)))))
+
+(define-public guile3.0-rsvg
+  (deprecated-package "guile3.0-rsvg" guile-rsvg))
 
 (define-public guile-present
   (package
@@ -1013,7 +1017,7 @@ images onto Cairo surfaces.")
                                  out "/lib/guile/" version "/site-ccache "))))
              #t)))))
     (native-inputs `(("pkg-config" ,pkg-config)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (propagated-inputs
      ;; These are used by the (present …) modules.
      `(("guile-lib" ,guile-lib)
@@ -1029,15 +1033,18 @@ includes a tools to generate PDF presentations out of Org mode and Texinfo
 documents.")
     (license license:lgpl3+)))
 
-(define-public guile3.0-present
+(define-public guile2.2-present
   (package
     (inherit guile-present)
-    (name "guile3.0-present")
-    (inputs `(("guile" ,guile-3.0)))
+    (name "guile2.2-present")
+    (inputs `(("guile" ,guile-2.2)))
     (propagated-inputs
-     `(("guile-lib" ,guile3.0-lib)
-       ("guile-cairo" ,guile3.0-cairo)
-       ("guile-rsvg" ,guile3.0-rsvg)))))
+     `(("guile-lib" ,guile2.2-lib)
+       ("guile-cairo" ,guile2.2-cairo)
+       ("guile-rsvg" ,guile2.2-rsvg)))))
+
+(define-public guile3.0-present
+  (deprecated-package "guile3.0-present" guile-present))
 
 (define-public guile-gnome
    (package
@@ -1072,9 +1079,9 @@ documents.")
        ("glib" ,glib)))
     (inputs `(("guile" ,guile-2.2)))
     (propagated-inputs
-     `(("guile-cairo" ,guile-cairo)
+     `(("guile-cairo" ,guile2.2-cairo)
        ("g-wrap" ,g-wrap)
-       ("guile-lib" ,guile-lib)))
+       ("guile-lib" ,guile2.2-lib)))
     (arguments
       `(#:tests? #f                               ;FIXME
         #:phases (modify-phases %standard-phases
diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 9f8173657e..0ee712b6f5 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -523,7 +523,9 @@ Unix-style DSV format and RFC 4180 format.")
                   #t))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases (modify-phases %standard-phases
+     '(;; The code uses 'scm_t_uint64' et al., which are deprecated in 3.0.
+       #:configure-flags '("CFLAGS=-Wno-error=deprecated-declarations")
+       #:phases (modify-phases %standard-phases
                   (add-after 'install 'mode-guile-objects
                     (lambda* (#:key outputs #:allow-other-keys)
                       ;; .go files are installed to "lib/guile/X.Y/cache".
@@ -540,7 +542,7 @@ Unix-style DSV format and RFC 4180 format.")
      `(("texinfo" ,texinfo)
        ("pkg-config" ,pkg-config)))
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (synopsis "Lightweight concurrency facility for Guile")
     (description
      "Fibers is a Guile library that implements a a lightweight concurrency
@@ -556,15 +558,14 @@ is not available for Guile 2.0.")
     (home-page "https://github.com/wingo/fibers")
     (license license:lgpl3+)))
 
-(define-public guile3.0-fibers
+(define-public guile2.0-fibers
   (package
     (inherit guile-fibers)
-    (name "guile3.0-fibers")
-    (arguments
-     ;; The code uses 'scm_t_uint64' et al., which are deprecated in 3.0.
-     `(#:configure-flags '("CFLAGS=-Wno-error=deprecated-declarations")
-       ,@(package-arguments guile-fibers)))
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-fibers")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-fibers
+  (deprecated-package "guile3.0-fibers" guile-fibers))
 
 (define-public guile-syntax-highlight
   (package
@@ -591,7 +592,7 @@ is not available for Guile 2.0.")
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (synopsis "General-purpose syntax highlighter for GNU Guile")
     (description "Guile-syntax-highlight is a general-purpose syntax
 highlighting library for GNU Guile.  It can parse code written in various
@@ -600,11 +601,14 @@ HTML (via SXML) or any other format for rendering.")
     (home-page "http://dthompson.us/projects/guile-syntax-highlight.html")
     (license license:lgpl3+)))
 
-(define-public guile3.0-syntax-highlight
+(define-public guile2.2-syntax-highlight
   (package
     (inherit guile-syntax-highlight)
-    (name "guile3.0-syntax-highlight")
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-syntax-highlight")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-syntax-highlight
+  (deprecated-package "guile3.0-syntax-highlight" guile-syntax-highlight))
 
 (define-public guile-sjson
   (package
@@ -692,18 +696,21 @@ using Guile's foreign function interface.")
         (base32 "10mv8c63159r3qvwwdvsgnsvdg7nc2ghak85zapwqpv4ywrqp9zc"))))
     (build-system guile-build-system)
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (home-page "https://gitlab.com/NalaGinrut/guile-colorized")
     (synopsis "Colorized REPL for Guile")
     (description
      "Guile-colorized provides you with a colorized REPL for GNU Guile.")
     (license license:gpl3+)))
 
-(define-public guile3.0-colorized
+(define-public guile2.2-colorized
   (package
     (inherit guile-colorized)
-    (name "guile3.0-colorized")
-    (native-inputs `(("guile" ,guile-next)))))
+    (name "guile2.2-colorized")
+    (native-inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-colorized
+  (deprecated-package "guile3.0-colorized" guile-colorized))
 
 (define-public guile-pfds
   (package
@@ -723,6 +730,14 @@ using Guile's foreign function interface.")
     (arguments
      '(#:source-directory "src"
        #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'work-around-guile-bug
+                    (lambda _
+                      ;; See bug #39210.
+                      (substitute* '("fingertrees.sls"
+                                     "queues/private/condition.sls"
+                                     "deques/private/condition.sls")
+                        (("&assertion") "&violation"))
+                      #t))
                   (add-after 'unpack 'move-files-around
                     (lambda _
                       ;; Move files under a pfds/ directory to reflect the
@@ -756,7 +771,7 @@ using Guile's foreign function interface.")
                                 (find-files "." "\\.sls$"))
                       #t)))))
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (synopsis "Purely functional data structures for Guile")
     (description
      "This package provides purely functional data structures written in R6RS
@@ -777,23 +792,19 @@ Vicare Scheme and IronScheme.  Right now it contains:
 @end itemize\n")
     (license license:bsd-3)))
 
-(define-public guile3.0-pfds
+(define-public guile2.2-pfds
   (package
     (inherit guile-pfds)
-    (name "guile3.0-pfds")
-    (native-inputs `(("guile" ,guile-3.0)))
+    (name "guile2.2-pfds")
+    (native-inputs `(("guile" ,guile-2.2)))
     (arguments
      (substitute-keyword-arguments (package-arguments guile-pfds)
        ((#:phases phases)
         `(modify-phases ,phases
-          (add-after 'unpack 'work-around-guile-bug
-            (lambda _
-              ;; See bug #39210.
-              (substitute* '("fingertrees.sls"
-                             "queues/private/condition.sls"
-                             "deques/private/condition.sls")
-                (("&assertion") "&violation"))
-              #t))))))))
+           (delete 'work-around-guile-bug)))))))
+
+(define-public guile3.0-pfds
+  (deprecated-package "guile3.0-pfds" guile-pfds))
 
 (define-public guile-aa-tree
   (package
@@ -847,7 +858,7 @@ convenient nested tree operations.")
                                    (assoc-ref inputs "zeromq"))))
                         #t)))))
       (native-inputs
-       `(("guile" ,guile-2.2)))
+       `(("guile" ,guile-3.0)))
       (inputs
        `(("zeromq" ,zeromq)))
       (home-page "https://github.com/jerry40/guile-simple-zmq")
@@ -857,11 +868,14 @@ convenient nested tree operations.")
 messaging library.")
       (license license:gpl3+))))
 
-(define-public guile3.0-simple-zmq
+(define-public guile2.2-simple-zmq
   (package
     (inherit guile-simple-zmq)
-    (name "guile3.0-simple-zmq")
-    (native-inputs `(("guile" ,guile-next)))))
+    (name "guile2.2-simple-zmq")
+    (native-inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-simple-zmq
+  (deprecated-package "guile3.0-simple-zmq" guile-simple-zmq))
 
 (define-public jupyter-guile-kernel
   (let ((commit "a7db9245a886e104138474df46c3e88b95cff629")
@@ -1068,7 +1082,7 @@ format.")
      '(#:make-flags
        '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("newt" ,newt)))
     (native-inputs
      `(("autoconf" ,autoconf)
@@ -1082,13 +1096,16 @@ Scheme by using Guile’s foreign function interface.")
     (home-page "https://gitlab.com/mothacehe/guile-newt")
     (license license:gpl3+)))
 
-(define-public guile3.0-newt
+(define-public guile2.2-newt
   (package
     (inherit guile-newt)
-    (name "guile3.0-newt")
+    (name "guile2.2-newt")
     (inputs `(("guile" ,guile-next)
               ,@(alist-delete "guile" (package-inputs guile-newt))))))
 
+(define-public guile3.0-newt
+  (deprecated-package "guile3.0-newt" guile-newt))
+
 (define-public guile-mastodon
   (package
     (name "guile-mastodon")
@@ -1149,7 +1166,7 @@ microblogging service.")
      '(#:make-flags
        '("GUILE_AUTO_COMPILE=0"))) ;to prevent guild warnings
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("parted" ,parted)))
     (propagated-inputs
      `(("guile-bytestructures" ,guile-bytestructures)))
@@ -1165,14 +1182,17 @@ written in pure Scheme by using Guile's foreign function interface.")
     (home-page "https://gitlab.com/mothacehe/guile-parted")
     (license license:gpl3+)))
 
-(define-public guile3.0-parted
+(define-public guile2.2-parted
   (package
     (inherit guile-parted)
-    (name "guile3.0-parted")
+    (name "guile2.2-parted")
     (inputs `(("guile" ,guile-next)
               ,@(alist-delete "guile" (package-inputs guile-parted))))
     (propagated-inputs
-     `(("guile-bytestructures" ,guile3.0-bytestructures)))))
+     `(("guile-bytestructures" ,guile2.2-bytestructures)))))
+
+(define-public guile3.0-parted
+  (deprecated-package "guile3.0-parted" guile-parted))
 
 (define-public guile-xosd
   (package
@@ -1359,7 +1379,7 @@ PostgreSQL.")
        ("automake" ,automake)
        ("pkg-config" ,pkg-config)
        ("texinfo" ,texinfo)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (synopsis
      "Guile application configuration parsing library.")
     (description
@@ -1374,13 +1394,16 @@ above command-line parameters.")
      "https://gitlab.com/a-sassmannshausen/guile-config")
     (license license:gpl3+)))
 
-(define-public guile3.0-config
+(define-public guile2.2-config
   (package
     (inherit guile-config)
-    (name "guile3.0-config")
-    (inputs `(("guile" ,guile-next)
+    (name "guile2.2-config")
+    (inputs `(("guile" ,guile-2.2)
               ,@(alist-delete "guile" (package-inputs guile-config))))))
 
+(define-public guile3.0-config
+  (deprecated-package "guile3.0-config" guile-config))
+
 (define-public guile-hall
   (package
     (name "guile-hall")
@@ -1447,7 +1470,7 @@ above command-line parameters.")
         ("automake" ,automake)
         ("pkg-config" ,pkg-config)
         ("texinfo" ,texinfo)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (propagated-inputs
      `(("guile-config" ,guile-config)))
     (synopsis "Guile project tooling")
@@ -1459,17 +1482,20 @@ provides tight coupling to Guix.")
     (home-page "https://gitlab.com/a-sassmannshausen/guile-hall")
     (license license:gpl3+)))
 
-(define-public guile3.0-hall
+(define-public guile2.2-hall
   (package
     (inherit guile-hall)
-    (name "guile3.0-hall")
-    (inputs `(("guile" ,guile-next)
+    (name "guile2.2-hall")
+    (inputs `(("guile" ,guile-2.2)
               ,@(alist-delete "guile" (package-inputs guile-hall))))
     (propagated-inputs
-     `(("guile-config" ,guile3.0-config)
+     `(("guile-config" ,guile2.2-config)
        ,@(alist-delete "guile-config"
                        (package-propagated-inputs guile-hall))))))
 
+(define-public guile3.0-hall
+  (deprecated-package "guile3.0-hall" guile-hall))
+
 (define-public guile-ics
   (package
     (name "guile-ics")
@@ -1499,7 +1525,7 @@ provides tight coupling to Guix.")
        ;; Gettext brings 'AC_LIB_LINKFLAGS_FROM_LIBS'.
        ("gettext" ,gettext-minimal)
        ("pkg-config" ,pkg-config)))
-    (inputs `(("guile" ,guile-2.2) ("which" ,which)))
+    (inputs `(("guile" ,guile-3.0) ("which" ,which)))
     (propagated-inputs `(("guile-lib" ,guile-lib)))
     (home-page "https://github.com/artyom-poptsov/guile-ics")
     (synopsis "Guile parser library for the iCalendar format")
@@ -1510,13 +1536,16 @@ pure Scheme.  The library can be used to read and write iCalendar data.
 The library is shipped with documentation in Info format and usage examples.")
     (license license:gpl3+)))
 
-(define-public guile3.0-ics
+(define-public guile2.2-ics
   (package
     (inherit guile-ics)
-    (name "guile3.0-ics")
-    (inputs `(("guile" ,guile-3.0)
+    (name "guile2.2-ics")
+    (inputs `(("guile" ,guile-2.2)
               ,@(alist-delete "guile" (package-inputs guile-ics))))
-    (propagated-inputs `(("guile-lib" ,guile3.0-lib)))))
+    (propagated-inputs `(("guile-lib" ,guile2.2-lib)))))
+
+(define-public guile3.0-ics
+  (deprecated-package "guile3.0-ics" guile-ics))
 
 (define-public guile-wisp
   (package
@@ -1543,6 +1572,12 @@ The library is shipped with documentation in Info format and usage examples.")
                            (guix build emacs-utils))
        #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'support-guile-3.0
+           (lambda _
+             (substitute* "configure"
+               (("_guile_versions_to_search=\"2.2")
+                "_guile_versions_to_search=\"3.0 2.2"))
+             #t))
          (add-before 'configure 'patch-/usr/bin/env
            (lambda _
              (substitute* "Makefile.in"
@@ -1581,7 +1616,7 @@ The library is shipped with documentation in Info format and usage examples.")
            (assoc-ref emacs:%standard-phases 'make-autoloads)))))
     (home-page "https://www.draketo.de/english/wisp")
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (native-inputs
      `(("emacs" ,emacs-minimal)
        ("python" ,python)
@@ -1592,21 +1627,14 @@ whitespace-significant language.  It may be easier on the eyes for some
 users and in some situations.")
     (license license:gpl3+)))
 
-(define-public guile3.0-wisp
+(define-public guile2.2-wisp
   (package
     (inherit guile-wisp)
-    (name "guile3.0-wisp")
-    (inputs `(("guile" ,guile-3.0)))
-    (arguments
-     (substitute-keyword-arguments (package-arguments guile-wisp)
-       ((#:phases phases)
-        `(modify-phases ,phases
-           (add-after 'unpack 'support-guile-3.0
-             (lambda _
-               (substitute* "configure"
-                 (("_guile_versions_to_search=\"2.2")
-                  "_guile_versions_to_search=\"3.0 2.2"))
-               #t))))))))
+    (name "guile2.2-wisp")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-wisp
+  (deprecated-package "guile3.0-wisp" guile-wisp))
 
 (define-public guile-sly
   (package
@@ -1847,7 +1875,7 @@ library.")
 $(libdir)/guile/@GUILE_EFFECTIVE_VERSION@/site-ccache\n"))
              #t)))))
     (native-inputs `(("pkg-config" ,pkg-config)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (home-page "https://www.nongnu.org/guile-lib/")
     (synopsis "Collection of useful Guile Scheme modules")
     (description
@@ -1867,11 +1895,14 @@ for Guile\".")
     (name "guile2.0-lib")
     (inputs `(("guile" ,guile-2.0)))))
 
-(define-public guile3.0-lib
+(define-public guile2.2-lib
   (package
     (inherit guile-lib)
-    (name "guile3.0-lib")
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-lib")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-lib
+  (deprecated-package "guile3.0-lib" guile-lib))
 
 (define-public guile-minikanren
   (package
@@ -1888,7 +1919,7 @@ for Guile\".")
                 "0r50jlpzi940jlmxyy3ddqqwmj5r12gb4bcv0ssini9v8km13xz6"))))
     (build-system guile-build-system)
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (home-page "https://github.com/ijp/minikanren")
     (synopsis "MiniKanren declarative logic system, packaged for Guile")
     (description
@@ -1909,11 +1940,14 @@ See http://minikanren.org/ for more on miniKanren generally.")
     (name "guile2.0-minikanren")
     (native-inputs `(("guile" ,guile-2.0)))))
 
-(define-public guile3.0-minikanren
+(define-public guile2.2-minikanren
   (package
     (inherit guile-minikanren)
-    (name "guile3.0-minikanren")
-    (native-inputs `(("guile" ,guile-next)))))
+    (name "guile2.2-minikanren")
+    (native-inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-minikanren
+  (deprecated-package "guile3.0-minikanren" guile-minikanren))
 
 (define-public guile-irregex
   (package
@@ -1946,7 +1980,7 @@ See http://minikanren.org/ for more on miniKanren generally.")
                       #t)))
        #:source-directory "src"))
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (home-page "http://synthcode.com/scheme/irregex")
     (synopsis "S-expression based regular expressions")
     (description
@@ -1961,11 +1995,14 @@ inspired by the SCSH regular expression system.")
     (name "guile2.0-irregex")
     (native-inputs `(("guile" ,guile-2.0)))))
 
-(define-public guile3.0-irregex
+(define-public guile2.2-irregex
   (package
     (inherit guile-irregex)
-    (name "guile3.0-irregex")
-    (native-inputs `(("guile" ,guile-next)))))
+    (name "guile2.2-irregex")
+    (native-inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-irregex
+  (deprecated-package "guile3.0-irregex" guile-irregex))
 
 (define-public haunt
   (package
@@ -2031,9 +2068,10 @@ inspired by the SCSH regular expression system.")
      `(("pkg-config" ,pkg-config)
        ("texinfo" ,texinfo)))
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (propagated-inputs
-     `(("guile-reader" ,guile-reader)
+     ;; XXX: Guile-Reader is currently unavailable for Guile 2.2 so strip it.
+     `(;;("guile-reader" ,guile-reader)
        ("guile-commonmark" ,guile-commonmark)))
     (synopsis "Functional static site generator")
     (description "Haunt is a static site generator written in Guile
@@ -2042,14 +2080,14 @@ interface for reading articles in any format.")
     (home-page "http://haunt.dthompson.us")
     (license license:gpl3+)))
 
-(define-public guile3.0-haunt
+(define-public guile2.2-haunt
   (package
     (inherit haunt)
-    (name "guile3.0-haunt")
-    (inputs `(("guile" ,guile-3.0)))
+    (name "guile2.2-haunt")
+    (inputs `(("guile" ,guile-2.2)))
     (propagated-inputs
-     ;; XXX: Guile-Reader is currently unavailable for Guile 3.0 so strip it.
-     `(("guile-commonmark" ,guile3.0-commonmark)))))
+     `(("guile-reader" ,guile-reader)
+       ("guile-commonmark" ,guile2.2-commonmark)))))
 
 (define-public guile2.0-haunt
   (package
@@ -2057,6 +2095,9 @@ interface for reading articles in any format.")
     (name "guile2.0-haunt")
     (inputs `(("guile" ,guile-2.0)))))
 
+(define-public guile3.0-haunt
+  (deprecated-package "guile3.0-haunt" haunt))
+
 (define-public guile-redis
   (package
     (name "guile-redis")
@@ -2112,7 +2153,7 @@ key-value cache and store.")
                   #t))))
     (build-system gnu-build-system)
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (synopsis "CommonMark parser for Guile")
@@ -2125,11 +2166,11 @@ is no support for parsing block and inline level HTML.")
     (home-page "https://github.com/OrangeShark/guile-commonmark")
     (license license:lgpl3+)))
 
-(define-public guile3.0-commonmark
+(define-public guile2.2-commonmark
   (package
     (inherit guile-commonmark)
-    (name "guile3.0-commonmark")
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-commonmark")
+    (inputs `(("guile" ,guile-2.2)))))
 
 (define-public guile2.0-commonmark
   (package
@@ -2137,6 +2178,9 @@ is no support for parsing block and inline level HTML.")
     (name "guile2.0-commonmark")
     (inputs `(("guile" ,guile-2.0)))))
 
+(define-public guile3.0-commonmark
+  (deprecated-package "guile3.0-commonmark" guile-commonmark))
+
 (define-public mcron
   (package
     (name "mcron")
@@ -2174,7 +2218,7 @@ is no support for parsing block and inline level HTML.")
                       #t)))))
     (native-inputs `(("pkg-config" ,pkg-config)
                      ("tzdata" ,tzdata-for-tests)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (home-page "https://www.gnu.org/software/mcron/")
     (synopsis "Run jobs at scheduled times")
     (description
@@ -2184,11 +2228,14 @@ Guile, so its configuration can be written in Scheme; the original cron
 format is also supported.")
     (license license:gpl3+)))
 
-(define-public guile3.0-mcron
+(define-public guile2.2-mcron
   (package
     (inherit mcron)
-    (name "guile3.0-mcron")
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-mcron")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-mcron
+  (deprecated-package "guile3.0-mcron" mcron))
 
 (define-public mcron2
   ;; This was mthl's mcron development branch, and it became mcron 1.1.
@@ -2211,7 +2258,7 @@ format is also supported.")
                   "1ydvw9dvssdvlvhh1dr8inyzy2x6m41qgp8hsivca1xysr4gc23a"))))
       (build-system gnu-build-system)
       (inputs
-       `(("guile" ,guile-2.2)))
+       `(("guile" ,guile-3.0)))
       (native-inputs
        `(("autoconf" ,autoconf)
          ("automake" ,automake)
@@ -2225,11 +2272,15 @@ format is also supported.")
 The picture values can directly be displayed in Geiser.")
       (license license:lgpl3+))))
 
-(define-public guile3.0-picture-language
+(define-public guile2.2-picture-language
   (package
     (inherit guile-picture-language)
-    (name "guile3.0-picture-language")
-    (inputs `(("guile" ,guile-3.0)))))
+    (name "guile2.2-picture-language")
+    (inputs `(("guile" ,guile-2.2)))))
+
+(define-public guile3.0-picture-language
+  (deprecated-package "guile3.0-picture-language"
+                      guile-picture-language))
 
 (define-public guile-studio
   (package
@@ -2526,7 +2577,7 @@ list of components.  This module takes care of that for you.")
        ("gtk+" ,gtk+)
        ("guile-lib" ,guile-lib)
        ("webkitgtk" ,webkitgtk)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (home-page "https://github.com/spk121/guile-gi")
     (synopsis "GObject bindings for Guile")
     (description
@@ -2535,14 +2586,17 @@ libraries, such as GTK+3.  Its README comes with the disclaimer: This is
 pre-alpha code.")
     (license license:gpl3+)))
 
-(define-public guile3.0-gi
+(define-public guile2.2-gi
   (package
     (inherit guile-gi)
-    (name "guile3.0-gi")
+    (name "guile2.2-gi")
     (native-inputs
-     `(("guile" ,guile-3.0)
+     `(("guile" ,guile-2.2)
        ,@(package-native-inputs guile-gi)))))
 
+(define-public guile3.0-gi
+  (deprecated-package "guile3.0-gi" guile-gi))
+
 (define-public guile-srfi-159
   (let ((commit "1bd98abda2ae4ef8f36761a167903e55c6bda7bb")
         (revision "0"))
@@ -3012,7 +3066,7 @@ the style of the Node Package Manager (NPM).")
                       (rename-file "private" "hashing/private")
                       #t)))))
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (synopsis "Cryprographic hash functions implemented in Scheme")
     (description
      "The @code{(hashing @dots{})} modules implement cryptographic hash
@@ -3020,13 +3074,16 @@ functions in pure R6RS Scheme: CRC, HMAC, MD5, SHA-1, and SHA-2 (SHA-256,
 SHA-512).")
     (license license:expat)))
 
-(define-public guile3.0-hashing
+(define-public guile2.2-hashing
   (package
     (inherit guile-hashing)
-    (name "guile3.0-hashing")
+    (name "guile2.2-hashing")
     (native-inputs
      `(("guile" ,guile-next)))))
 
+(define-public guile3.0-hashing
+  (deprecated-package "guile3.0-hashing" guile-hashing))
+
 (define-public guile-webutils
   (let ((commit "8541904f761066dc9c27b1153e9a838be9a55299")
         (revision "0"))
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index 17fa51a3c7..b471eccfed 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -252,15 +252,6 @@ without requiring the source code to be rewritten.")
 
 (define-deprecated guile-2.2/bug-fix guile-2.2)
 
-(define-public guile-2.2/fixed
-  ;; A package of Guile 2.2 that's rarely changed.  It is the one used
-  ;; in the `base' module, and thus changing it entails a full rebuild.
-  (package
-    (inherit guile-2.2)
-    (properties '((hidden? . #t)            ;people should install 'guile-2.2'
-                  (timeout . 72000)             ;20 hours
-                  (max-silent-time . 36000))))) ;10 hours (needed on ARM
-                                                ;  when heavily loaded)
 (define-public guile-2.2.4
   (package/inherit
    guile-2.2
@@ -277,7 +268,7 @@ without requiring the source code to be rewritten.")
   ;; This is the latest Guile stable version.
   (package
     (inherit guile-2.2)
-    (name "guile-next")                           ;to be renamed to "guile"
+    (name "guile")
     (version "3.0.1")
     (source (origin
               (inherit (package-source guile-2.2))
@@ -300,6 +291,16 @@ without requiring the source code to be rewritten.")
 
 (define-public guile-next guile-3.0)
 
+(define-public guile-3.0/fixed
+  ;; A package of Guile that's rarely changed.  It is the one used in the
+  ;; `base' module, and thus changing it entails a full rebuild.
+  (package
+    (inherit guile-3.0)
+    (properties '((hidden? . #t)            ;people should install 'guile-2.2'
+                  (timeout . 72000)             ;20 hours
+                  (max-silent-time . 36000))))) ;10 hours (needed on ARM
+                                                ;  when heavily loaded)
+
 (define* (make-guile-readline guile #:optional (name "guile-readline"))
   (package
     (name name)
@@ -377,9 +378,32 @@ GNU@tie{}Guile.  Use the @code{(ice-9 readline)} module and call its
   (package-input-rewriting `((,guile-2.2 . ,guile-2.0))
                            (guile-variant-package-name "guile2.0")))
 
-(define package-for-guile-3.0
-  (package-input-rewriting `((,guile-2.2 . ,guile-next))
-                           (guile-variant-package-name "guile3.0")))
+(define package-for-guile-2.2
+  (package-input-rewriting `((,guile-3.0 . ,guile-2.2))
+                           (guile-variant-package-name "guile2.2")))
+
+(define-syntax define-deprecated-guile3.0-package
+  (lambda (s)
+    "Define a deprecated package alias for \"guile3.0-something\"."
+    (syntax-case s ()
+      ((_ name)
+       (and (identifier? #'name)
+            (string-prefix? "guile3.0-" (symbol->string (syntax->datum
+                                                         #'name))))
+       (let ((->guile (lambda (str)
+                        (let ((base (string-drop str
+                                                 (string-length "guile3.0-"))))
+                          (string-append "guile-" base)))))
+         (with-syntax ((package-name (symbol->string (syntax->datum #'name)))
+                       (package
+                         (datum->syntax
+                          #'name
+                          (string->symbol
+                           (->guile (symbol->string (syntax->datum #'name)))))))
+           #'(begin
+               (define-deprecated name package
+                 (deprecated-package package-name package))
+               (export name))))))))
 
 (define-public guile-for-guile-emacs
   (package (inherit guile-2.2)
@@ -474,10 +498,16 @@ specification.  These are the main features:
                                   version ".tar.gz"))
               (sha256
                (base32
-                "14m6b6g2maw0mkvfm4x63rqb54vgbpn1gcqs715ijw4bikfzlqfz"))))))
+                "14m6b6g2maw0mkvfm4x63rqb54vgbpn1gcqs715ijw4bikfzlqfz"))))
+    (native-inputs `(("pkg-config" ,pkg-config)
+                     ("guile" ,guile-3.0)))
+    (inputs `(("guile" ,guile-3.0)))))
+
+(define-public guile2.2-json
+  (package-for-guile-2.2 guile-json-3))
 
 (define-public guile3.0-json
-  (package-for-guile-3.0 guile-json-3))
+  (deprecated-package "guile3.0-json" guile-json-3))
 
 ;; There are two guile-gdbm packages, one using the FFI and one with
 ;; direct C bindings, hence the verbose name.
@@ -518,7 +548,7 @@ specification.  These are the main features:
                                  (assoc-ref inputs "gdbm"))))
                       #t)))))
     (native-inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (inputs
      `(("gdbm" ,gdbm)))
     (home-page "https://github.com/ijp/guile-gdbm")
@@ -531,8 +561,10 @@ Guile's foreign function interface.")
 (define-public guile2.0-gdbm-ffi
   (package-for-guile-2.0 guile-gdbm-ffi))
 
-(define-public guile3.0-gdbm-ffi
-  (package-for-guile-3.0 guile-gdbm-ffi))
+(define-public guile2.2-gdbm-ffi
+  (package-for-guile-2.2 guile-gdbm-ffi))
+
+(define-deprecated-guile3.0-package guile3.0-gdbm-ffi)
 
 (define-public guile-sqlite3
   (package
@@ -565,7 +597,7 @@ Guile's foreign function interface.")
        ("guile" ,guile-2.2)
        ("pkg-config" ,pkg-config)))
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("sqlite" ,sqlite)))
     (synopsis "Access SQLite databases from Guile")
     (description
@@ -575,8 +607,10 @@ Guile's foreign function interface.")
 (define-public guile2.0-sqlite3
   (package-for-guile-2.0 guile-sqlite3))
 
-(define-public guile3.0-sqlite3
-  (package-for-guile-3.0 guile-sqlite3))
+(define-public guile2.2-sqlite3
+  (package-for-guile-2.2 guile-sqlite3))
+
+(define-deprecated-guile3.0-package guile3.0-sqlite3)
 
 (define-public guile-bytestructures
   (package
@@ -608,9 +642,9 @@ Guile's foreign function interface.")
      `(("autoconf" ,autoconf)
        ("automake" ,automake)
        ("pkg-config" ,pkg-config)
-       ("guile" ,guile-2.2)))
+       ("guile" ,guile-3.0)))
     (inputs
-     `(("guile" ,guile-2.2)))
+     `(("guile" ,guile-3.0)))
     (synopsis "Structured access to bytevector contents for Guile")
     (description
      "Guile bytestructures offers a system imitating the type system
@@ -624,8 +658,10 @@ type system, elevating types to first-class status.")
 (define-public guile2.0-bytestructures
   (package-for-guile-2.0 guile-bytestructures))
 
-(define-public guile3.0-bytestructures
-  (package-for-guile-3.0 guile-bytestructures))
+(define-public guile2.2-bytestructures
+  (package-for-guile-2.2 guile-bytestructures))
+
+(define-deprecated-guile3.0-package guile3.0-bytestructures)
 
 (define-public guile-git
   (package
@@ -643,10 +679,10 @@ type system, elevating types to first-class status.")
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
-       ("guile" ,guile-2.2)
+       ("guile" ,guile-3.0)
        ("guile-bytestructures" ,guile-bytestructures)))
     (inputs
-     `(("guile" ,guile-2.2)
+     `(("guile" ,guile-3.0)
        ("libgit2" ,libgit2)))
     (propagated-inputs
      `(("guile-bytestructures" ,guile-bytestructures)))
@@ -656,8 +692,8 @@ type system, elevating types to first-class status.")
 manipulate repositories of the Git version control system.")
     (license license:gpl3+)))
 
-(define-public guile3.0-git
-  (package-for-guile-3.0 guile-git))
+(define-public guile2.2-git
+  (package-for-guile-2.2 guile-git))
 
 (define-public guile2.0-git
   (let ((base (package-for-guile-2.0 guile-git)))
@@ -670,5 +706,7 @@ manipulate repositories of the Git version control system.")
                 ,@(srfi-1:alist-delete "libgit2"
                                        (package-inputs base)))))))
 
+(define-deprecated-guile3.0-package guile3.0-git)
+
 ;;; guile.scm ends here
 
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index a09c263697..988542b061 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -222,7 +222,7 @@
      `(("dejagnu" ,dejagnu)
        ("m4" ,m4)
        ("texinfo" ,texinfo)
-       ("guile" ,guile-2.2)
+       ("guile" ,guile-3.0)
        ("gsasl" ,gsasl)
        ("gnutls" ,gnutls)
        ("ncurses" ,ncurses)
@@ -246,14 +246,17 @@ software.")
      ;; Libraries are under LGPLv3+, and programs under GPLv3+.
      (list gpl3+ lgpl3+))))
 
-(define-public guile3.0-mailutils
+(define-public guile2.2-mailutils
   (package
     (inherit mailutils)
-    (name "guile3.0-mailutils")
+    (name "guile2.2-mailutils")
     (inputs
-     `(("guile" ,guile-3.0)
+     `(("guile" ,guile-2.2)
        ,@(alist-delete "guile" (package-inputs mailutils))))))
 
+(define-public guile3.0-mailutils
+  (deprecated-package "guile3.0-mailutils" mailutils))
+
 (define-public nullmailer
   (package
     (name "nullmailer")
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 19dbf2c7b8..555019a57d 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -307,7 +307,7 @@
          ("sqlite" ,sqlite)
          ("libgcrypt" ,libgcrypt)
 
-         ("guile" ,guile-2.2)
+         ("guile" ,guile-3.0)
 
          ;; Some of the tests use "unshare" when it is available.
          ("util-linux" ,util-linux)
@@ -328,7 +328,7 @@
 
          ("glibc-utf8-locales" ,glibc-utf8-locales)))
       (propagated-inputs
-       `(("gnutls" ,gnutls)
+       `(("gnutls" ,guile3.0-gnutls)
          ("guile-gcrypt" ,guile-gcrypt)
          ("guile-json" ,guile-json-3)
          ("guile-sqlite3" ,guile-sqlite3)
@@ -360,7 +360,7 @@ the Nix package manager.")
      (fold alist-delete (package-native-inputs guix)
            '("po4a" "graphviz" "help2man")))
     (inputs
-     `(("gnutls" ,gnutls)
+     `(("gnutls" ,guile3.0-gnutls)
        ("guile-git" ,guile-git)
        ("guile-json" ,guile-json-3)
        ("guile-gcrypt" ,guile-gcrypt)
@@ -408,31 +408,34 @@ the Nix package manager.")
 (define-public guile2.0-guix
   (deprecated-package "guile2.0-guix" guix))
 
-(define-public guile3.0-guix
+(define-public guile2.2-guix
   (package
     (inherit guix)
-    (name "guile3.0-guix")
+    (name "guile2.2-guix")
     (native-inputs
-     `(("guile" ,guile-3.0)
-       ("gnutls" ,guile3.0-gnutls)
-       ("guile-gcrypt" ,guile3.0-gcrypt)
-       ("guile-json" ,guile3.0-json)
-       ("guile-sqlite3" ,guile3.0-sqlite3)
-       ("guile-ssh" ,guile3.0-ssh)
-       ("guile-git" ,guile3.0-git)
+     `(("guile" ,guile-2.2)
+       ("gnutls" ,guile2.2-gnutls)
+       ("guile-gcrypt" ,guile2.2-gcrypt)
+       ("guile-json" ,guile2.2-json)
+       ("guile-sqlite3" ,guile2.2-sqlite3)
+       ("guile-ssh" ,guile2.2-ssh)
+       ("guile-git" ,guile2.2-git)
        ,@(fold alist-delete (package-native-inputs guix)
                '("guile" "gnutls" "guile-gcrypt" "guile-json"
                  "guile-sqlite3" "guile-ssh" "guile-git"))))
     (inputs
-     `(("guile" ,guile-3.0)
+     `(("guile" ,guile-2.2)
        ,@(alist-delete "guile" (package-inputs guix))))
     (propagated-inputs
-     `(("gnutls" ,guile3.0-gnutls)
-       ("guile-gcrypt" ,guile3.0-gcrypt)
-       ("guile-json" ,guile3.0-json)
-       ("guile-sqlite3" ,guile3.0-sqlite3)
-       ("guile-ssh" ,guile3.0-ssh)
-       ("guile-git" ,guile3.0-git)))))
+     `(("gnutls" ,gnutls)
+       ("guile-gcrypt" ,guile2.2-gcrypt)
+       ("guile-json" ,guile2.2-json)
+       ("guile-sqlite3" ,guile2.2-sqlite3)
+       ("guile-ssh" ,guile2.2-ssh)
+       ("guile-git" ,guile2.2-git)))))
+
+(define-public guile3.0-guix
+  (deprecated-package "guile3.0-guix" guix))
 
 (define-public guix-minimal
   ;; A version of Guix which is built with the minimal set of dependencies, as
@@ -837,12 +840,12 @@ written entirely in Python.")))
     (inputs
      `(("guile" ,guile-3.0)))
     (propagated-inputs
-     `(("guix" ,guile3.0-guix)
-       ("guile-commonmark" ,guile3.0-commonmark)
-       ("guile-gcrypt" ,guile3.0-gcrypt)
-       ("guile-pfds" ,guile3.0-pfds)
-       ("guile-syntax-highlight" ,guile3.0-syntax-highlight)
-       ("guile-wisp" ,guile3.0-wisp)))
+     `(("guix" ,guix)
+       ("guile-commonmark" ,guile-commonmark)
+       ("guile-gcrypt" ,guile-gcrypt)
+       ("guile-pfds" ,guile-pfds)
+       ("guile-syntax-highlight" ,guile-syntax-highlight)
+       ("guile-wisp" ,guile-wisp)))
     (home-page "https://workflows.guix.info")
     (synopsis "Workflow management extension for GNU Guix")
     (description "The @dfn{Guix Workflow Language} (GWL) provides an
@@ -867,6 +870,14 @@ environments.")
               (sha256
                (base32
                 "01z7jjkc7r7lj6637rcgpz40v8xqqyfp6871h94yvcnwm7zy9h1n"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  ;; Allow builds with Guile 3.0.
+                  (substitute* "configure.ac"
+                    (("^GUILE_PKG.*")
+                     "GUILE_PKG([3.0 2.2])\n"))
+                  #t))
               (file-name (string-append "guix-jupyter-" version "-checkout"))))
     (build-system gnu-build-system)
     (arguments
@@ -925,7 +936,7 @@ environments.")
        ("python-ipykernel" ,python-ipykernel)))
     (inputs
      `(("guix" ,guix)
-       ("guile" ,guile-2.2)))
+       ("guile" ,guile-3.0)))
     (propagated-inputs
      `(("guile-json" ,guile-json-3)
        ("guile-simple-zmq" ,guile-simple-zmq)
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index 7a7f30e255..a7b6e22030 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -112,7 +112,7 @@ scientific data.")
                   #t))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)))
-    (inputs `(("guile" ,guile-2.2)))
+    (inputs `(("guile" ,guile-3.0)))
     (propagated-inputs `(("guile-cairo" ,guile-cairo)))
     (home-page "http://wingolog.org/software/guile-charting/")
     (synopsis "Create charts and graphs in Guile")
@@ -121,12 +121,15 @@ scientific data.")
 using the Cairo drawing library.")
     (license license:lgpl2.1+)))
 
-(define-public guile3.0-charting
+(define-public guile2.2-charting
   (package
     (inherit guile-charting)
-    (name "guile3.0-charting")
-    (inputs `(("guile" ,guile-3.0)))
-    (propagated-inputs `(("guile-cairo" ,guile3.0-cairo)))))
+    (name "guile2.2-charting")
+    (inputs `(("guile" ,guile-2.2)))
+    (propagated-inputs `(("guile-cairo" ,guile2.2-cairo)))))
+
+(define-public guile3.0-charting
+  (deprecated-package "guile3.0-charting" guile-charting))
 
 (define-public ploticus
   (package
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 4d062bbb18..9ae9e6aaaa 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -301,8 +301,8 @@ Additionally, various channel-specific options can be negotiated.")
                      ("texinfo" ,texinfo)
                      ("pkg-config" ,pkg-config)
                      ("which" ,which)
-                     ("guile" ,guile-2.2))) ;needed when cross-compiling.
-    (inputs `(("guile" ,guile-2.2)
+                     ("guile" ,guile-3.0))) ;needed when cross-compiling.
+    (inputs `(("guile" ,guile-3.0)
               ("libssh" ,libssh)
               ("libgcrypt" ,libgcrypt)))
     (synopsis "Guile bindings to libssh")
@@ -322,16 +322,19 @@ libssh library.")
     (inputs `(("guile" ,guile-2.0)
               ,@(alist-delete "guile" (package-inputs guile-ssh))))))
 
-(define-public guile3.0-ssh
+(define-public guile2.2-ssh
   (package
     (inherit guile-ssh)
-    (name "guile3.0-ssh")
+    (name "guile2.2-ssh")
     (native-inputs
-     `(("guile" ,guile-next) ;needed when cross-compiling.
+     `(("guile" ,guile-2.2) ;needed when cross-compiling.
        ,@(alist-delete "guile" (package-native-inputs guile-ssh))))
-    (inputs `(("guile" ,guile-next)
+    (inputs `(("guile" ,guile-2.2)
               ,@(alist-delete "guile" (package-inputs guile-ssh))))))
 
+(define-public guile3.0-ssh
+  (deprecated-package "guile3.0-ssh" guile-ssh))
+
 (define-public corkscrew
   (package
     (name "corkscrew")
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 6451037fdb..27c7804029 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015, 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
diff --git a/gnu/packages/vpn.scm b/gnu/packages/vpn.scm
index 4899dbe3b7..d46b29ec13 100644
--- a/gnu/packages/vpn.scm
+++ b/gnu/packages/vpn.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2013, 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2016, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015 Jeff Mickey <j@codemac.net>
 ;;; Copyright © 2016, 2017, 2019 Efraim Flashner <efraim@flashner.co.il>
@@ -136,7 +136,7 @@ Only \"Universal TUN/TAP device driver support\" is needed in the kernel.")
                  (base32
                   "1g41yarz2bl0f73kbjqnywr485ghanbp7nmspklfb0n07yp0z6ak"))))
       (build-system gnu-build-system)
-      (inputs `(("guile" ,guile-2.2) ; for the wrapper scripts
+      (inputs `(("guile" ,guile-3.0) ; for the wrapper scripts
                 ("coreutils" ,coreutils)
                 ("grep" ,grep)
                 ("iproute2" ,iproute)    ; for ‘ip’
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index db10cbf3e9..84da93b4cc 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -7162,7 +7162,7 @@ compressed JSON header blocks.
       (inputs
        `(("guix" ,guix)))
       (propagated-inputs
-       `(("guile" ,guile-2.2)
+       `(("guile" ,guile-3.0)
          ("guile-commonmark" ,guile-commonmark)
          ("guile-json" ,guile-json-3)))
       (home-page "https://github.com/UMCUGenetics/hpcguix-web")
diff --git a/guix/gexp.scm b/guix/gexp.scm
index 5912511530..f50104efbc 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -1553,12 +1553,12 @@ TARGET, a GNU triplet."
 ;;;
 
 (define (default-guile)
-  ;; Lazily resolve 'guile-2.2' (not 'guile-final' because this is for
+  ;; Lazily resolve 'guile-3.0' (not 'guile-final' because this is for
   ;; programs returned by 'program-file' and we don't want to keep references
   ;; to several Guile packages).  This module must not refer to (gnu …)
   ;; modules directly, to avoid circular dependencies, hence this hack.
   (module-ref (resolve-interface '(gnu packages guile))
-              'guile-2.2))
+              'guile-3.0))
 
 (define* (load-path-expression modules #:optional (path %load-path)
                                #:key (extensions '()) system target)
diff --git a/guix/self.scm b/guix/self.scm
index 6b633f9bc0..e3b36b9407 100644
--- a/guix/self.scm
+++ b/guix/self.scm
@@ -49,11 +49,11 @@
                (module-ref (resolve-interface module) variable))))
     (match-lambda
       ("guile"      (ref '(gnu packages guile) 'guile-3.0))
-      ("guile-json" (ref '(gnu packages guile) 'guile3.0-json))
-      ("guile-ssh"  (ref '(gnu packages ssh)   'guile3.0-ssh))
-      ("guile-git"  (ref '(gnu packages guile) 'guile3.0-git))
-      ("guile-sqlite3" (ref '(gnu packages guile) 'guile3.0-sqlite3))
-      ("guile-gcrypt"  (ref '(gnu packages gnupg) 'guile3.0-gcrypt))
+      ("guile-json" (ref '(gnu packages guile) 'guile-json-3))
+      ("guile-ssh"  (ref '(gnu packages ssh)   'guile-ssh))
+      ("guile-git"  (ref '(gnu packages guile) 'guile-git))
+      ("guile-sqlite3" (ref '(gnu packages guile) 'guile-sqlite3))
+      ("guile-gcrypt"  (ref '(gnu packages gnupg) 'guile-gcrypt))
       ("gnutls"     (ref '(gnu packages tls) 'guile3.0-gnutls))
       ("zlib"       (ref '(gnu packages compression) 'zlib))
       ("lzlib"      (ref '(gnu packages compression) 'lzlib))