* doc/misc/modus-themes.org (Enable and load): Include internal link.
(Sample configuration for use-package): Update code sample.
(Customization Options): Update references to customization options.
(Option for more italic constructs): Document new variable, as an
alias of the deprecated 'modus-themes-slanted-constructs'.

(Option for syntax highlighting, Option for links)
(Option for command prompt styles, Option for mode line presentation)
(Option for language checkers)
(Option for line highlighting (hl-line-mode))
(Option for parenthesis matching (show-paren-mode))
(Option for active region, Option for the headings' overall style):
Update documentation to describe new possible values, expressed as a
list of symbols.

(Option for Org agenda constructs): Document new user option.

(Control the scale of headings): Update symbol of variable.

(Remap face with local value (DIY), Backdrop for pdf-tools (DIY)):
Tweak text of internal reference.

(Font configurations for Org and others (DIY)):  Add internal link and
document how to configure the 'bold' and 'italic' faces.

(Custom Org user faces (DIY)): Minor corrections or changes to single
words.

(Full support for packages or face groups): Include new items.

(Notes on individual packages): Add notes on Avy hints, the colour of
days in 'M-x calendar', and underlines in 'compilation-mode' buffers.

(What is the best setup for legibility?): Remove single word.
(Acknowledgements): Update list of contributors.

* etc/themes/modus-themes.el (modus-themes-faces)
(modus-themes-operandi-colors, modus-themes-vivendi-colors)
(modus-themes-subtle-red, modus-themes-subtle-green)
(modus-themes-subtle-yellow, modus-themes-subtle-blue)
(modus-themes-subtle-magenta, modus-themes-subtle-cyan)
(modus-themes-subtle-neutral, modus-themes-intense-red)
(modus-themes-intense-green, modus-themes-intense-yellow)
(modus-themes-intense-blue, modus-themes-intense-magenta)
(modus-themes-intense-cyan, modus-themes-intense-neutral)
(modus-themes-refine-red, modus-themes-refine-green)
(modus-themes-refine-yellow, modus-themes-refine-blue)
(modus-themes-refine-magenta, modus-themes-refine-cyan)
(modus-themes-active-red, modus-themes-active-green)
(modus-themes-active-yellow, modus-themes-active-blue)
(modus-themes-active-magenta, modus-themes-active-cyan)
(modus-themes-fringe-red, modus-themes-fringe-green)
(modus-themes-fringe-yellow, modus-themes-fringe-blue)
(modus-themes-fringe-magenta, modus-themes-fringe-cyan)
(modus-themes-nuanced-red, modus-themes-nuanced-green)
(modus-themes-nuanced-yellow, modus-themes-nuanced-blue)
(modus-themes-nuanced-magenta, modus-themes-nuanced-cyan)
(modus-themes-special-cold, modus-themes-special-mild)
(modus-themes-special-warm, modus-themes-special-calm)
(modus-themes-diff-added, modus-themes-diff-changed)
(modus-themes-diff-removed, modus-themes-diff-refine-added)
(modus-themes-diff-refine-changed, modus-themes-diff-refine-removed)
(modus-themes-diff-focus-added, modus-themes-diff-focus-changed)
(modus-themes-diff-focus-removed, modus-themes-diff-heading)
(modus-themes-pseudo-header, modus-themes-mark-alt)
(modus-themes-mark-del, modus-themes-mark-sel, modus-themes-mark-symbol)
(modus-themes-heading-1, modus-themes-heading-2, modus-themes-heading-3)
(modus-themes-heading-4, modus-themes-heading-5, modus-themes-heading-6)
(modus-themes-heading-7, modus-themes-heading-8, modus-themes-hl-line)
(modus-themes-bold, modus-themes-slant, modus-themes-variable-pitch)
(modus-themes-graph-red-0, modus-themes-graph-red-1)
(modus-themes-graph-green-0, modus-themes-graph-green-1)
(modus-themes-graph-yellow-0, modus-themes-graph-yellow-1)
(modus-themes-graph-blue-0, modus-themes-graph-blue-1)
(modus-themes-graph-magenta-0, modus-themes-graph-magenta-1)
(modus-themes-graph-cyan-0, modus-themes-graph-cyan-1)
(modus-themes-lang-note, modus-themes-lang-warning)
(modus-themes-lang-error, modus-themes-reset-soft)
(modus-themes-reset-hard, modus-themes-key-binding)
(modus-themes-search-success, modus-themes-search-success-modeline)
(modus-themes-search-success-lazy): Add new ':group' specification for
custom faces.

(modus-themes-operandi-color-overrides)
(modus-themes-vivendi-color-overrides, modus-themes-bold-constructs)
(modus-themes-variable-pitch-headings, modus-themes-variable-pitch-ui)
(modus-themes-no-mixed-fonts, modus-themes-fringes)
(modus-themes-scale-headings, modus-themes-scale-1, modus-themes-scale-2)
(modus-themes-scale-3, modus-themes-scale-4, modus-themes-scale-title)
(modus-themes-org-blocks, modus-themes-completions)
(modus-themes-success-deuteranopia, modus-themes-mail-citations)
(modus-themes-subtle-line-numbers, modus-themes-intense-hl-line): Add
custom setter.

(modus-themes-scale-5, modus-themes-scale-title): Deprecate variable
and replace it with alias 'modus-themes-scale-title'.

(modus-themes-slanted-constructs, modus-themes-italic-constructs):
Deprecate variable and replace it with alias
'modus-themes-italic-constructs'.

(modus-themes-org-habit, modus-themes-org-agenda): Deprecate variable
and make its functionality a part of 'modus-themes-org-agenda'.

(modus-themes-headings, modus-themes-mode-line, modus-themes-diffs)
(modus-themes-prompts, modus-themes-paren-match, modus-themes-syntax)
(modus-themes-links, modus-themes-region, modus-themes-lang-checkers)
(modus-themes-org-blocks): Make user options accept a value as a list
of properties.

(modus-themes--mixed-fonts, modus-themes--slant)
(modus-themes--fixed-pitch, modus-themes--lang-check)
(modus-themes--prompt, modus-themes--paren)
(modus-themes--syntax-foreground, modus-themes--syntax-extra)
(modus-themes--syntax-string, modus-themes--syntax-docstring)
(modus-themes--syntax-comment, modus-themes--heading-p)
(modus-themes--heading, modus-themes--org-habit)
(modus-themes--mode-line-attrs, modus-themes--link-color)
(modus-themes--link, modus-themes--region, modus-themes--hl-line):
Update internal functions to parse new values for user options.

* etc/themes/modus-operandi-theme.el,
  etc/themes/modus-vivendi-theme.el: Bump version number.

A detailed change log is provided here (no javascript required):
<https://protesilaos.com/codelog/2021-07-15-modus-themes-1-5-0/>.

* doc/emacs/files.texi (Interlocking):
* doc/lispref/files.texi (File Locks):
* doc/misc/tramp.texi (Auto-save File Lock and Backup):
Add remote-file-name-inhibit-locks.

* etc/NEWS: New user option 'remote-file-name-inhibit-locks'.

* lisp/files.el (remote-file-name-inhibit-locks): New defcustom.

* lisp/net/tramp-adb.el (tramp-adb-file-name-handler-alist):
* lisp/net/tramp-crypt.el (tramp-crypt-file-name-handler-alist):
* lisp/net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
* lisp/net/tramp-rclone.el (tramp-rclone-file-name-handler-alist):
* lisp/net/tramp-sh.el (tramp-sh-file-name-handler-alist):
* lisp/net/tramp-smb.el (tramp-smb-file-name-handler-alist):
* lisp/net/tramp-sshfs.el (tramp-sshfs-file-name-handler-alist):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-file-name-handler-alist):
Use `tramp-handle-make-lock-file-name'.

* lisp/net/tramp.el (tramp-allow-unsafe-temporary-files): Fix docstring.
(tramp-handle-make-lock-file-name): New defun.

* test/lisp/net/tramp-tests.el (tramp-test39-lock-file): Extend test.

* doc/misc/tramp.texi (Top, Configuration): Adapt node name for
file locks.
(Auto-save File Lock and Backup): Rename node name and section
title.  Add file-lock to @cindex.  Describe file locks.

* lisp/dired.el (dired-trivial-filenames): Add lock files.
(dired-font-lock-keywords): Move files suffixed with
`completion-ignored-extensions' up.  Add lock files to these checks.

* lisp/net/tramp.el (tramp-get-lock-file, tramp-handle-unlock-file):
Use `when-let'
(tramp-lock-file-info-regexp): Rename from
`tramp-lock-file-contents-regexp'.
(tramp-handle-file-locked-p, tramp-handle-lock-file): Adapt callees.
(tramp-handle-lock-file): Set file modes of lockname.

* src/buffer.c (Frestore_buffer_modified_p):
* src/fileio.c (write_region):
* src/insdel.c (prepare_to_modify_buffer_1): Call Flock_file.

* src/filelock.c (Qmake_lock_file_name): Declare symbol.
(make_lock_file_name): Use it.  Don't check Fboundp, it doesn't
work for interned symbols.
(lock_file): Return a Lisp_Object.  Don't check create_lockfiles.
Remove MSDOS version of the function.
(Flock_file): Check create_lockfiles.
(Flock_buffer): Call Flock_file.

* src/lisp.h (lock_file): Remove.

* test/lisp/shadowfile-tests.el (shadow-test08-shadow-todo)
(shadow-test09-shadow-copy-files): Let-bind `create-lockfiles'.

* test/lisp/net/tramp-tests.el (create-lockfiles): Don't set it
globally.
(tramp-test39-lock-file): Check also for `set-visited-file-name'.

* doc/emacs/files.texi (Interlocking): Mention
lock-file-name-transforms.

* doc/lispref/files.texi (File Locks): Document
lock-file-name-transforms.

* doc/misc/efaq.texi (Not writing files to the current directory):
Mention all the three variables needed to not having Emacs writing
files to the current directory in one place.

* lisp/files.el (lock-file-name-transforms): New user option (bug#49261).
(make-auto-save-file-name): Factor out the main logic...
(auto-save--transform-file-name): ... to this new function.
(make-lock-file-name): New function that also calls the
factored-out function.

* src/filelock.c: Remove MAKE_LOCK_NAME and fill_in_lock_file_name.
(make_lock_file_name): New utility function that calls out to Lisp
to heed `lock-file-name-transforms'.
(lock_file): Use it.  Also remove likely buggy call to
dostounix_filename.
(unlock_file_body, Ffile_locked_p): Also use make_lock_file_name.

* doc/lispref/functions.texi (Function Safety):
* doc/misc/srecode.texi (Parts of SRecode):
* doc/misc/wisent.texi (Wisent Semantic, Wisent Lex):
* doc/misc/pcl-cvs.texi (Editing files):
* doc/misc/bovine.texi (top, Starting Rules)
(Bovine Grammar Rules, How Lexical Tokens Match)
(Optional Lambda Expression):
* doc/emacs/msdos.texi (Windows Keyboard):
* doc/emacs/buffers.texi (Several Buffers):
* doc/emacs/text.texi (Text): Avoid using @inforef, which is
deprecated.

348b2aed0c Update IRC-related references to point to Libera.Chat
b0e725e2fe Fix typo in c-macro-expand docstring

# Conflicts:
#	doc/misc/erc.texi
#	doc/misc/gnus-faq.texi
#	doc/misc/rcirc.texi
#	etc/NEWS
#	lisp/erc/erc-services.el
#	lisp/erc/erc.el
#	lisp/ldefs-boot.el
#	lisp/net/rcirc.el

Per GNU and FSF's announcements [0, 1] of moving official IRC channels
to the Libera.Chat IRC network, as well as several Emacs-related
channels following suit [2], update IRC-related references to reflect
the migration.

[0]: https://lists.gnu.org/archive/html/info-gnu/2021-06/msg00005.html
[1]: https://lists.gnu.org/archive/html/info-gnu/2021-06/msg00007.html
[2]: https://lists.gnu.org/archive/html/info-gnu-emacs/2021-06/msg00000.html

* doc/misc/trampver.texi:
* lisp/net/trampver.el: Change version to "2.5.1".

* lisp/tramp.el (tramp-handle-write-region):
* lisp/tramp-adb.el (tramp-adb-handle-write-region):
* lisp/tramp-sh.el (tramp-sh-handle-write-region): Call local
`write-region' directly.

* test/lisp/net/tramp-tests.el (tramp--test-utf8): Adapt test for
MS Windows.

* lisp/net/rcirc.el (rcirc-handler-AUTHENTICATE): New function
(bug#48601).
(rcirc-authenticate):
(rcirc-connect): Support sasl.
(rcirc-get-server-password, rcirc-get-server-method): New functions.
(rcirc-authinfo): Document it.