;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages digest)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)
  #:use-module (guix utils)
  #:use-module (ice-9 match))

(define-public xxhash
  (package
    (name "xxhash")
    (version "0.8.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/Cyan4973/xxHash")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0hpbzdd6kfki5f61g103vp7pfczqkdj0js63avl0ss552jfb8h96"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list ,(string-append "CC=" (cc-for-target))
             ,(match (or (%current-target-system)
                         (%current-system))
                ;; Detect vector instruction set at run time.
                ((or "i686-linux" "x86_64-linux") "DISPATCH=1")
                (_ "DISPATCH=0"))
             "XXH_FORCE_MEMORY_ACCESS=1" ; improved performance with GCC
             (string-append "prefix=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))         ; no configure script
    (home-page "https://cyan4973.github.io/xxHash/")
    (synopsis "Extremely fast hash algorithm")
    (description
     "xxHash is an extremely fast non-cryptographic hash algorithm.  It works
at speeds close to RAM limits, and comes in both 32- and 64-bit flavours.
The code is highly portable, and hashes of the same length are identical on all
platforms (both big and little endian).")
    (license (list license:bsd-2        ; xxhash library (xxhash.[ch])
                   license:gpl2+))))    ; xxhsum.c
id=b6fc2054dc3303a9bda533a620e9cafbbb5e76d5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-04-09 02:42:54 +0000'>2020-04-09</span></td><td><a href='/guix/commit/gnu/installer/record.scm?id=91c231a2223440081426929828a23c7baa0214fd'>installer: Allow Alt+Shift toggle from non-Latin keyboard layouts.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/40493&gt;.

* gnu/installer/newt/keymap.scm (%non-latin-layouts): New variable.
(%non-latin-variants): New variable.
(%latin-layout+variants): New variable.
(toggleable-latin-layout): New procedure to compute combined layouts.
(run-keymap-page): Use it.
(keyboard-layout-&gt;configuration): Apply it in config.scm.
(run-layout-page): Mention Alt+Shift.
* gnu/installer/keymap.scm (kmscon-update-keymap): Pass on XKB options.
* gnu/installer/record.scm (&lt;installer&gt;): Adjust code comments.
* gnu/installer.scm (apply-keymap): Pass on XKB options.
(installer-steps): Adjust code comments.
* gnu/packages/patches/kmscon-runtime-keymap-switch.patch: Apply XKB options.
</span></span></td><td>Florian Pelz</td></tr>
<tr><td><span title='2020-04-08 10:24:02 +0200'>2020-04-08</span></td><td><a href='/guix/commit/gnu/installer/record.scm?id=07a53bd512530d8f87e076263227216c467727bb'>installer: Turn help menu into parameters menu.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/local.mk (INSTALLER_MODULES): Rename help.scm into parameters.scm.
* po/guix/POTFILES.in: Ditto.
* gnu/installer/record.scm (&lt;installer&gt;): Rename help-menu into parameter-menu
and help-page into parameters-page.
* gnu/installer/newt/parameters.scm: Renamed from help.scm. Update information
messages.
* gnu/installer/newt.scm: Update accordingly.
* gnu/installer/newt/keymap.scm: Ditto.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-04-06 15:06:03 +0200'>2020-04-06</span></td><td><a href='/guix/commit/gnu/installer/record.scm?id=786c9c39bc0826737e99f0c750ea30033cdbc202'>installer: Add a help page.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/newt/help.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add it.
* po/guix/POTFILES.in: Add it.
* gnu/installer/record.scm (&lt;installer&gt;): Add 'help-menu' and 'help-page'
 fields,
 (installer-help-menu, installer-help-page): new exported procedures.
 * gnu/installer/newt.scm (init): Set the help line,
 (help-menu, help-page): new procedures used ...
 (newt-installer): ... here.
 * gnu/installer/newt/keymap.scm (run-layout-page): Add a context argument to
 differenciate the help context from the main one,
 (run-keymap-page): add a context argument and pass it to run-layout-page.
 * gnu/installer.scm (compute-keymap-step): Add a context argument and pass it
 to 'installer-keymap-page',
 (installer-steps): set the help menu and pass the appropriate context to
 compute-keymap-step calls,
 (guile-newt): update to revision 2.
</span></span></td><td>Mathieu Othacehe</td></tr>