GNU bug report logs - #48824
27.1; Symbol’s function definition is void: gnus-info-set-read

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ben Bacarisse <ben <at> bsb.me.uk>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.1; Symbol’s function definition is void:
 gnus-info-set-read
Date: Fri, 04 Jun 2021 01:49:08 +0100

After upgrading to 27.1 my Gnus home-grown backend fails with

  Symbol’s function definition is void: gnus-info-set-read

If I comment out the one use of this function I can start Gnus but, of
course, the maintenance of the read messages no longer works.

The associated "getter" function (gnus-info-read) works, as does the
related "setter" function gnus-into-set-marks.

Configured using:
 'configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --enable-libsystemd --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/27.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/27.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils --build
 x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
 --libexecdir=/usr/lib --localstatedir=/var/lib
 --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd
 --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/27.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/27.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils --with-cairo
 --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
 'CFLAGS=-g -O2
 -ffile-prefix-map=/build/emacs-P5Mppj/emacs-27.1+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro''

Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF
ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD
JSON PDUMPER LCMS2 GMP

Important settings:
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  save-place-mode: t
  global-whitespace-mode: t
  delete-selection-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
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/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/w3m-haddock hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/w3m-haddock
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-align-imports hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-align-imports
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-session hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-session
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-navigate-imports hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-navigate-imports
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-menu hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-menu
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-mode-pkg hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-mode-pkg
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-sandbox hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-sandbox
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-compile hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-compile
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-completions hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-completions
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-ghc-support hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-ghc-support
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/ghci-script-mode hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/ghci-script-mode
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-doc hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-doc
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-debug hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-debug
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-utils hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-utils
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-repl hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-repl
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-decl-scan hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-decl-scan
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-lexeme hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-lexeme
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-indent hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-indent
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-modules hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-modules
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-presentation-mode hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-presentation-mode
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-font-lock hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-font-lock
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-c2hs hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-c2hs
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-commands hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-commands
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-string hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-string
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-mode-autoloads hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-mode-autoloads
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-interactive-mode hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-interactive-mode
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-process hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-process
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-svg hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-svg
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-complete-module hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-complete-module
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-mode hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-mode
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/highlight-uses-mode hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/highlight-uses-mode
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-move-nested hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-move-nested
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-unicode-input-method hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-unicode-input-method
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/ghc-core hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/ghc-core
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/inf-haskell hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/inf-haskell
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-indentation hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-indentation
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-sort-imports hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-sort-imports
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-load hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-load
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-hoogle hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-hoogle
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-customize hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-customize
/usr/share/emacs/site-lisp/elpa/haskell-mode-17.2snapshot/haskell-cabal hides /usr/share/emacs/site-lisp/elpa-src/haskell-mode-17.2snapshot/haskell-cabal
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-wash hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-wash
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-lib hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-lib
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-show hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-show
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-hello hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-hello
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-print hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-print
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-mua hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-mua
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-compat hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-compat
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-tag hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-tag
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-parser hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-parser
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/coolj hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/coolj
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-jump hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-jump
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-crypto hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-crypto
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-autoloads hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-autoloads
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-maildir-fcc hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-maildir-fcc
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-draft hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-draft
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-address hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-address
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-pkg hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-pkg
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-message hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-message
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-version hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-version
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-query hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-query
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-tree hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-tree
/usr/share/emacs/site-lisp/elpa/notmuch-0.31.4/notmuch-company hides /usr/share/emacs/site-lisp/elpa-src/notmuch-0.31.4/notmuch-company
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-align hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-align
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-project hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-project
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-util-buffer hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-util-buffer
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-mode hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-mode
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-mode-debug hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-mode-debug
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-face hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-face
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-mode-pkg hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-mode-pkg
/usr/share/emacs/site-lisp/elpa/php-mode-1.23.0/php-mode-autoloads hides /usr/share/emacs/site-lisp/elpa-src/php-mode-1.23.0/php-mode-autoloads
/usr/share/emacs/site-lisp/elpa/web-mode-17.0.2/web-mode hides /usr/share/emacs/site-lisp/elpa-src/web-mode-17.0.2/web-mode
/usr/share/emacs/site-lisp/elpa/web-mode-17.0.2/web-mode-autoloads hides /usr/share/emacs/site-lisp/elpa-src/web-mode-17.0.2/web-mode-autoloads
/usr/share/emacs/site-lisp/elpa/web-mode-17.0.2/web-mode-pkg hides /usr/share/emacs/site-lisp/elpa-src/web-mode-17.0.2/web-mode-pkg
~/.emacs.d/lisp/loaddefs hides /usr/share/emacs/27.1/lisp/loaddefs

Features:
(shadow footnote rx flyspell ispell mailalias nnir emacsbug sendmail
help-fns radix-tree cl-print debug backtrace find-func ebuff-menu
mule-util flow-fill mm-archive face-remap sort gnus-cite smiley
ansi-color mail-extr gnus-bcklg qp apropos gnus-async gnus-ml gnus-topic
nndraft nnmh utf-7 nnmhraw nnml cl-extra help-mode bbdb-gnus bbdb-mua
bbdb-com pcase crm bbdb bbdb-site timezone gnutls network-stream nsm
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art
mm-uu mml2015 mm-view mml-smime smime dig nntp gnus-cache gnus-sum url
url-proxy url-privacy url-expand url-methods url-history mailcap shr
url-cookie url-domsuf url-util svg xml dom gnus-group gnus-undo edmacro
kmacro gnus-start gnus-cloud nnimap nnmail mail-source utf7 netrc nnoo
parse-time iso8601 gnus-spec gnus-int gnus-range message rmc puny dired
dired-loaddefs format-spec rfc822 mml mml-sec epa derived epg epg-config
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader gnus-win gnus nnheader gnus-util rmail rmail-loaddefs rfc2047
rfc2045 ietf-drums text-property-search time-date mail-utils mm-util
mail-prsvr wid-edit thingatpt web-mode advice visible-mark easy-mmode cl
saveplace disp-table whitespace delsel cus-start cus-load finder-inf
bbdb-loaddefs package easymenu browse-url url-handlers url-parse
auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs
password-cache json subr-x map url-vars seq byte-opt gv bytecomp
byte-compile cconv cl-loaddefs cl-lib tooltip eldoc electric uniquify
ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms
cp51932 hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese composite charscript charprop case-table epa-hook
jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit
x multi-tty make-network-process emacs)

Memory information:
((conses 16 254223 33669)
 (symbols 48 21383 1)
 (strings 32 66980 5064)
 (string-bytes 1 2264412)
 (vectors 16 33283)
 (vector-slots 8 951364 38660)
 (floats 8 233 333)
 (intervals 56 876 0)
 (buffers 1000 34))

-- 
Ben.

Message #8 received at 48824 <at> debbugs.gnu.org (full text, mbox):

From: Matthew Carter <m <at> ahungry.com>
To: Ben Bacarisse <ben <at> bsb.me.uk>
Cc: 48824 <at> debbugs.gnu.org
Subject: Re: bug#48824: 27.1; Symbol’s function
 definition is void: gnus-info-set-read
Date: Fri, 04 Jun 2021 00:24:22 -0400

Ben Bacarisse <ben <at> bsb.me.uk> writes:

> After upgrading to 27.1 my Gnus home-grown backend fails with
>
>   Symbol’s function definition is void: gnus-info-set-read
>
> If I comment out the one use of this function I can start Gnus but, of
> course, the maintenance of the read messages no longer works.
>
> The associated "getter" function (gnus-info-read) works, as does the
> related "setter" function gnus-into-set-marks.
>

Looks like this changed towards end of 2019 to swap from macros to
inlined functions, and you can now use setf directly, vs a setter:

https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.3#n9403

-- 
Matthew Carter (m <at> ahungry.com)
http://ahungry.com

Message #11 received at 48824 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Matthew Carter <m <at> ahungry.com>
Cc: 48824 <at> debbugs.gnu.org, Ben Bacarisse <ben <at> bsb.me.uk>
Subject: Re: bug#48824: 27.1; Symbol’s function
 definition is void: gnus-info-set-read
Date: Fri, 04 Jun 2021 11:55:46 +0200

Matthew Carter <m <at> ahungry.com> writes:

> Ben Bacarisse <ben <at> bsb.me.uk> writes:
>
>> After upgrading to 27.1 my Gnus home-grown backend fails with
>>
>>   Symbol’s function definition is void: gnus-info-set-read
>>
>> If I comment out the one use of this function I can start Gnus but, of
>> course, the maintenance of the read messages no longer works.
>>
>> The associated "getter" function (gnus-info-read) works, as does the
>> related "setter" function gnus-into-set-marks.
>
> Looks like this changed towards end of 2019 to swap from macros to
> inlined functions, and you can now use setf directly, vs a setter:
>
> https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.3#n9403

Yes, the accessor macros should have been retained for backwards
compatibility (but marked as obsolete) to avoid breaking out-of-tree
code.

But that sail has shipped (since Emacs 27.1 was released without those
macros), so unfortunately all external code has to be adjusted to use
the new syntax.  Fortunately, that shouldn't be difficult -- just
rewrite calls like

(gnus-info-set-read info range)

to

(setf (gnus-info-read info) range)

There isn't going to be any further Emacs 27 releases, so we can't
reintroduce the removed setter macros, either, so I'm closing this bug
report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #18 received at 48824 <at> debbugs.gnu.org (full text, mbox):

From: Ben Bacarisse <ben <at> bsb.me.uk>
To: Matthew Carter <m <at> ahungry.com>, Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 48824 <at> debbugs.gnu.org
Subject: Re: bug#48824: 27.1; Symbol’s function
 definition is void: gnus-info-set-read
Date: Fri, 04 Jun 2021 13:09:45 +0100

Matthew Carter <m <at> ahungry.com> writes:

> Ben Bacarisse <ben <at> bsb.me.uk> writes:
>
>> After upgrading to 27.1 my Gnus home-grown backend fails with
>>
>>   Symbol’s function definition is void: gnus-info-set-read
...
> Looks like this changed towards end of 2019 to swap from macros to
> inlined functions, and you can now use setf directly, vs a setter:
>
> https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.3#n9403

Thank you both.  That was an easy fix.  And now I know where to look to
keep up to date with changes.

-- 
Ben.

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