gnu: Default to Guile 3.0.

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.