bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[David Bremner]

Like many people I share emacs configuration between emacs 24 and emacs
25.

Emacs 25.1 customize wants to clean up by deleting obsolete variables,
and in particular x-select-enable-primary. Unfortunately this breaks my
workflow for for emacs 24.

I'd happily update my configuration to use select-enable-primary, except
that that variable is not present in emacs 24.5. I believe the docstring
for select-enable-primary is incorrect in stating the variable is
available since 24.1

In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.4)
 of 2016-11-30, modified by Debian built on trouble
Windowing system distributor 'The X.Org Foundation', version 11.0.11900000
System Description:	Debian GNU/Linux testing (stretch)

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 --with-pop=yes
 --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --with-x=yes --with-x-toolkit=gtk3
 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -fdebug-prefix-map=/build/emacs25-Fs4LPA/emacs25-25.1+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LANG: en_CA.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Message[Notmuch]

Minor modes in effect:
  company-mode: t
  magit-auto-revert-mode: t
  global-git-commit-mode: t
  mml-mode: t
  async-bytecomp-package-mode: t
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  tracking-mode: t
  tooltip-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  auto-fill-function: message-do-auto-fill
  transient-mark-mode: t
  abbrev-mode: t

Recent messages:
Unknown requested feature: notmuch-fcc-initialization
Saving file /home/bremner/.emacs.d/custom.el...
Wrote /home/bremner/.emacs.d/custom.el [2 times]
funcall-interactively: Buffer is read-only: #<buffer *notmuch-saved-search-inbox*>
Mark set [2 times]
Quit
Making completion list...
Quit
Making completion list...
Type "q" in help window to restore its previous buffer.
Quit

Load-path shadows:
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/usr/share/org-mode/lisp/htmlize hides /usr/share/emacs25/site-lisp/emacs-goodies-el/htmlize
/home/bremner/.emacs.d/elpa/csv-mode-1.5/csv-mode hides /usr/share/emacs25/site-lisp/emacs-goodies-el/csv-mode
/usr/share/emacs25/site-lisp/emacs-goodies-el/all hides /usr/share/emacs/25.1/site-lisp/elpa/company-0.8.12/all
/usr/share/emacs25/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode
/usr/share/emacs/25.1/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup
/usr/share/emacs25/site-lisp/flim/hex-util hides /usr/share/emacs/25.1/lisp/hex-util
/usr/share/emacs25/site-lisp/flim/md4 hides /usr/share/emacs/25.1/lisp/md4
/usr/share/emacs/site-lisp/rst hides /usr/share/emacs/25.1/lisp/textmodes/rst
/usr/share/emacs25/site-lisp/org-mode/ob-table hides /usr/share/emacs/25.1/lisp/org/ob-table
/usr/share/emacs25/site-lisp/org-mode/ob-mscgen hides /usr/share/emacs/25.1/lisp/org/ob-mscgen
/usr/share/emacs25/site-lisp/org-mode/org-rmail hides /usr/share/emacs/25.1/lisp/org/org-rmail
/usr/share/emacs25/site-lisp/org-mode/org-pcomplete hides /usr/share/emacs/25.1/lisp/org/org-pcomplete
/usr/share/emacs25/site-lisp/org-mode/org-clock hides /usr/share/emacs/25.1/lisp/org/org-clock
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/usr/share/emacs25/site-lisp/org-mode/ob-sass hides /usr/share/emacs/25.1/lisp/org/ob-sass
/usr/share/emacs25/site-lisp/org-mode/ob-fortran hides /usr/share/emacs/25.1/lisp/org/ob-fortran
/usr/share/emacs25/site-lisp/org-mode/org-macs hides /usr/share/emacs/25.1/lisp/org/org-macs
/usr/share/emacs25/site-lisp/org-mode/org-entities hides /usr/share/emacs/25.1/lisp/org/org-entities
/usr/share/emacs25/site-lisp/org-mode/org-capture hides /usr/share/emacs/25.1/lisp/org/org-capture
/usr/share/emacs25/site-lisp/org-mode/ob-lilypond hides /usr/share/emacs/25.1/lisp/org/ob-lilypond
/usr/share/emacs25/site-lisp/org-mode/org-info hides /usr/share/emacs/25.1/lisp/org/org-info
/usr/share/emacs25/site-lisp/org-mode/org-bbdb hides /usr/share/emacs/25.1/lisp/org/org-bbdb
/usr/share/emacs25/site-lisp/org-mode/ob-js hides /usr/share/emacs/25.1/lisp/org/ob-js
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/usr/share/emacs25/site-lisp/org-mode/ob-ledger hides /usr/share/emacs/25.1/lisp/org/ob-ledger
/usr/share/emacs25/site-lisp/org-mode/ox-md hides /usr/share/emacs/25.1/lisp/org/ox-md
/usr/share/emacs25/site-lisp/org-mode/org-docview hides /usr/share/emacs/25.1/lisp/org/org-docview
/usr/share/emacs25/site-lisp/org-mode/ob-plantuml hides /usr/share/emacs/25.1/lisp/org/ob-plantuml
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/usr/share/emacs25/site-lisp/org-mode/ob-eval hides /usr/share/emacs/25.1/lisp/org/ob-eval
/usr/share/emacs25/site-lisp/org-mode/org-ctags hides /usr/share/emacs/25.1/lisp/org/org-ctags
/usr/share/emacs25/site-lisp/org-mode/org-attach hides /usr/share/emacs/25.1/lisp/org/org-attach
/usr/share/emacs25/site-lisp/org-mode/org-plot hides /usr/share/emacs/25.1/lisp/org/org-plot
/usr/share/emacs25/site-lisp/org-mode/org-id hides /usr/share/emacs/25.1/lisp/org/org-id
/usr/share/emacs25/site-lisp/org-mode/ob-gnuplot hides /usr/share/emacs/25.1/lisp/org/ob-gnuplot
/usr/share/emacs25/site-lisp/org-mode/ob-emacs-lisp hides /usr/share/emacs/25.1/lisp/org/ob-emacs-lisp
/usr/share/emacs25/site-lisp/org-mode/ob-makefile hides /usr/share/emacs/25.1/lisp/org/ob-makefile
/usr/share/emacs25/site-lisp/org-mode/ob-maxima hides /usr/share/emacs/25.1/lisp/org/ob-maxima
/usr/share/emacs25/site-lisp/org-mode/org-timer hides /usr/share/emacs/25.1/lisp/org/org-timer
/usr/share/emacs25/site-lisp/org-mode/ox-odt hides /usr/share/emacs/25.1/lisp/org/ox-odt
/usr/share/emacs25/site-lisp/org-mode/org-mouse hides /usr/share/emacs/25.1/lisp/org/org-mouse
/usr/share/emacs25/site-lisp/org-mode/org-agenda hides /usr/share/emacs/25.1/lisp/org/org-agenda
/usr/share/emacs25/site-lisp/org-mode/org-install hides /usr/share/emacs/25.1/lisp/org/org-install
/usr/share/emacs25/site-lisp/org-mode/org-bibtex hides /usr/share/emacs/25.1/lisp/org/org-bibtex
/usr/share/emacs25/site-lisp/org-mode/ob-scala hides /usr/share/emacs/25.1/lisp/org/ob-scala
/usr/share/emacs25/site-lisp/org-mode/ob-haskell hides /usr/share/emacs/25.1/lisp/org/ob-haskell
/usr/share/emacs25/site-lisp/org-mode/org-table hides /usr/share/emacs/25.1/lisp/org/org-table
/usr/share/emacs25/site-lisp/org-mode/ob-ditaa hides /usr/share/emacs/25.1/lisp/org/ob-ditaa
/usr/share/emacs25/site-lisp/org-mode/org-gnus hides /usr/share/emacs/25.1/lisp/org/org-gnus
/usr/share/emacs25/site-lisp/org-mode/org-eshell hides /usr/share/emacs/25.1/lisp/org/org-eshell
/usr/share/emacs25/site-lisp/org-mode/ob-picolisp hides /usr/share/emacs/25.1/lisp/org/ob-picolisp
/usr/share/emacs25/site-lisp/org-mode/org-mhe hides /usr/share/emacs/25.1/lisp/org/org-mhe
/usr/share/emacs25/site-lisp/org-mode/ox-texinfo hides /usr/share/emacs/25.1/lisp/org/ox-texinfo
/usr/share/emacs25/site-lisp/org-mode/ob-keys hides /usr/share/emacs/25.1/lisp/org/ob-keys
/usr/share/emacs25/site-lisp/org-mode/ob-octave hides /usr/share/emacs/25.1/lisp/org/ob-octave
/usr/share/emacs25/site-lisp/org-mode/org-protocol hides /usr/share/emacs/25.1/lisp/org/org-protocol
/usr/share/emacs25/site-lisp/org-mode/org-datetree hides /usr/share/emacs/25.1/lisp/org/org-datetree
/usr/share/emacs25/site-lisp/org-mode/ob-core hides /usr/share/emacs/25.1/lisp/org/ob-core
/usr/share/emacs25/site-lisp/org-mode/ob-lob hides /usr/share/emacs/25.1/lisp/org/ob-lob
/usr/share/emacs25/site-lisp/org-mode/ob-latex hides /usr/share/emacs/25.1/lisp/org/ob-latex
/usr/share/emacs25/site-lisp/org-mode/org-footnote hides /usr/share/emacs/25.1/lisp/org/org-footnote
/usr/share/emacs25/site-lisp/org-mode/org-w3m hides /usr/share/emacs/25.1/lisp/org/org-w3m
/usr/share/emacs25/site-lisp/org-mode/org-archive hides /usr/share/emacs/25.1/lisp/org/org-archive
/usr/share/emacs25/site-lisp/org-mode/org-faces hides /usr/share/emacs/25.1/lisp/org/org-faces
/usr/share/emacs25/site-lisp/org-mode/org-list hides /usr/share/emacs/25.1/lisp/org/org-list
/usr/share/emacs25/site-lisp/org-mode/ob-comint hides /usr/share/emacs/25.1/lisp/org/ob-comint
/usr/share/emacs25/site-lisp/org-mode/org-indent hides /usr/share/emacs/25.1/lisp/org/org-indent
/usr/share/emacs25/site-lisp/org-mode/ob-org hides /usr/share/emacs/25.1/lisp/org/ob-org
/usr/share/emacs25/site-lisp/org-mode/org-inlinetask hides /usr/share/emacs/25.1/lisp/org/org-inlinetask
/usr/share/emacs25/site-lisp/org-mode/org-compat hides /usr/share/emacs/25.1/lisp/org/org-compat
/usr/share/emacs25/site-lisp/org-mode/ob-io hides /usr/share/emacs/25.1/lisp/org/ob-io
/usr/share/emacs25/site-lisp/org-mode/org-mobile hides /usr/share/emacs/25.1/lisp/org/org-mobile
/usr/share/emacs25/site-lisp/org-mode/ob-scheme hides /usr/share/emacs/25.1/lisp/org/ob-scheme
/usr/share/emacs25/site-lisp/org-mode/ob-python hides /usr/share/emacs/25.1/lisp/org/ob-python
/usr/share/emacs25/site-lisp/org-mode/ox-html hides /usr/share/emacs/25.1/lisp/org/ox-html
/usr/share/emacs25/site-lisp/org-mode/ob-java hides /usr/share/emacs/25.1/lisp/org/ob-java
/usr/share/emacs25/site-lisp/org-mode/org-colview hides /usr/share/emacs/25.1/lisp/org/org-colview
/usr/share/emacs25/site-lisp/org-mode/ob-ruby hides /usr/share/emacs/25.1/lisp/org/ob-ruby
/usr/share/emacs25/site-lisp/org-mode/ox-latex hides /usr/share/emacs/25.1/lisp/org/ox-latex
/usr/share/emacs25/site-lisp/org-mode/ox hides /usr/share/emacs/25.1/lisp/org/ox
/usr/share/emacs25/site-lisp/org-mode/ob-ref hides /usr/share/emacs/25.1/lisp/org/ob-ref
/usr/share/emacs25/site-lisp/org-mode/org-macro hides /usr/share/emacs/25.1/lisp/org/org-macro
/usr/share/emacs25/site-lisp/org-mode/org hides /usr/share/emacs/25.1/lisp/org/org
/usr/share/emacs25/site-lisp/org-mode/ob-css hides /usr/share/emacs/25.1/lisp/org/ob-css
/usr/share/emacs25/site-lisp/org-mode/ob-shen hides /usr/share/emacs/25.1/lisp/org/ob-shen
/usr/share/emacs25/site-lisp/org-mode/org-irc hides /usr/share/emacs/25.1/lisp/org/org-irc
/usr/share/emacs25/site-lisp/org-mode/ob-sql hides /usr/share/emacs/25.1/lisp/org/ob-sql
/usr/share/emacs25/site-lisp/org-mode/org-element hides /usr/share/emacs/25.1/lisp/org/org-element
/usr/share/emacs25/site-lisp/org-mode/ob hides /usr/share/emacs/25.1/lisp/org/ob
/usr/share/emacs25/site-lisp/org-mode/ob-sqlite hides /usr/share/emacs/25.1/lisp/org/ob-sqlite
/usr/share/emacs25/site-lisp/org-mode/ox-publish hides /usr/share/emacs/25.1/lisp/org/ox-publish
/usr/share/emacs25/site-lisp/org-mode/ob-tangle hides /usr/share/emacs/25.1/lisp/org/ob-tangle
/usr/share/emacs25/site-lisp/org-mode/ob-lisp hides /usr/share/emacs/25.1/lisp/org/ob-lisp
/usr/share/emacs25/site-lisp/org-mode/ob-exp hides /usr/share/emacs/25.1/lisp/org/ob-exp
/usr/share/emacs25/site-lisp/org-mode/org-crypt hides /usr/share/emacs/25.1/lisp/org/org-crypt
/usr/share/emacs25/site-lisp/org-mode/ob-perl hides /usr/share/emacs/25.1/lisp/org/ob-perl
/usr/share/emacs25/site-lisp/org-mode/org-src hides /usr/share/emacs/25.1/lisp/org/org-src
/usr/share/emacs25/site-lisp/org-mode/ox-icalendar hides /usr/share/emacs/25.1/lisp/org/ox-icalendar
/usr/share/emacs25/site-lisp/org-mode/org-loaddefs hides /usr/share/emacs/25.1/lisp/org/org-loaddefs
/usr/share/emacs25/site-lisp/org-mode/ob-ocaml hides /usr/share/emacs/25.1/lisp/org/ob-ocaml
/usr/share/emacs25/site-lisp/org-mode/ox-ascii hides /usr/share/emacs/25.1/lisp/org/ox-ascii
/usr/share/emacs25/site-lisp/org-mode/ob-R hides /usr/share/emacs/25.1/lisp/org/ob-R
/usr/share/emacs25/site-lisp/org-mode/ob-C hides /usr/share/emacs/25.1/lisp/org/ob-C
/usr/share/emacs25/site-lisp/org-mode/org-version hides /usr/share/emacs/25.1/lisp/org/org-version
/usr/share/emacs25/site-lisp/org-mode/ob-asymptote hides /usr/share/emacs/25.1/lisp/org/ob-asymptote
/usr/share/emacs25/site-lisp/org-mode/org-habit hides /usr/share/emacs/25.1/lisp/org/org-habit
/usr/share/emacs25/site-lisp/org-mode/ob-matlab hides /usr/share/emacs/25.1/lisp/org/ob-matlab
/usr/share/emacs25/site-lisp/org-mode/ox-org hides /usr/share/emacs/25.1/lisp/org/ox-org
/usr/share/emacs25/site-lisp/org-mode/ox-man hides /usr/share/emacs/25.1/lisp/org/ox-man
/usr/share/emacs25/site-lisp/org-mode/ob-calc hides /usr/share/emacs/25.1/lisp/org/ob-calc
/usr/share/emacs25/site-lisp/org-mode/org-feed hides /usr/share/emacs/25.1/lisp/org/org-feed
/usr/share/emacs25/site-lisp/flim/sasl-cram hides /usr/share/emacs/25.1/lisp/net/sasl-cram
/usr/share/emacs25/site-lisp/flim/sasl hides /usr/share/emacs/25.1/lisp/net/sasl
/usr/share/emacs25/site-lisp/flim/sasl-digest hides /usr/share/emacs/25.1/lisp/net/sasl-digest
/usr/share/emacs25/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/25.1/lisp/net/sasl-ntlm
/usr/share/emacs25/site-lisp/flim/hmac-def hides /usr/share/emacs/25.1/lisp/net/hmac-def
/usr/share/emacs25/site-lisp/flim/hmac-md5 hides /usr/share/emacs/25.1/lisp/net/hmac-md5
/usr/share/emacs25/site-lisp/flim/ntlm hides /usr/share/emacs/25.1/lisp/net/ntlm
/usr/share/emacs/25.1/site-lisp/elpa/let-alist-1.0.4/let-alist hides /usr/share/emacs/25.1/lisp/emacs-lisp/let-alist
/usr/share/emacs/25.1/site-lisp/elpa/seq-2.19/seq hides /usr/share/emacs/25.1/lisp/emacs-lisp/seq
/usr/share/emacs25/site-lisp/auctex/prv-emacs hides /usr/share/emacs/site-lisp/auctex/prv-emacs
/usr/share/emacs25/site-lisp/auctex/context-nl hides /usr/share/emacs/site-lisp/auctex/context-nl
/usr/share/emacs25/site-lisp/auctex/tex-style hides /usr/share/emacs/site-lisp/auctex/tex-style
/usr/share/emacs25/site-lisp/auctex/font-latex hides /usr/share/emacs/site-lisp/auctex/font-latex
/usr/share/emacs25/site-lisp/auctex/tex-mik hides /usr/share/emacs/site-lisp/auctex/tex-mik
/usr/share/emacs25/site-lisp/auctex/tex-bar hides /usr/share/emacs/site-lisp/auctex/tex-bar
/usr/share/emacs25/site-lisp/auctex/tex hides /usr/share/emacs/site-lisp/auctex/tex
/usr/share/emacs25/site-lisp/auctex/context-en hides /usr/share/emacs/site-lisp/auctex/context-en
/usr/share/emacs25/site-lisp/auctex/tex-jp hides /usr/share/emacs/site-lisp/auctex/tex-jp
/usr/share/emacs25/site-lisp/auctex/tex-font hides /usr/share/emacs/site-lisp/auctex/tex-font
/usr/share/emacs25/site-lisp/auctex/tex-buf hides /usr/share/emacs/site-lisp/auctex/tex-buf
/usr/share/emacs25/site-lisp/auctex/bib-cite hides /usr/share/emacs/site-lisp/auctex/bib-cite
/usr/share/emacs25/site-lisp/auctex/tex-info hides /usr/share/emacs/site-lisp/auctex/tex-info
/usr/share/emacs25/site-lisp/auctex/plain-tex hides /usr/share/emacs/site-lisp/auctex/plain-tex
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/usr/share/emacs25/site-lisp/auctex/context hides /usr/share/emacs/site-lisp/auctex/context
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/usr/share/emacs25/site-lisp/auctex/toolbar-x hides /usr/share/emacs/site-lisp/auctex/toolbar-x
/usr/share/emacs25/site-lisp/auctex/latex hides /usr/share/emacs/site-lisp/auctex/latex

Features:
(shadow emacsbug pp cus-edit cus-start cus-load debian-control-mode
gnus-art gnus-sum gnus-group gnus-undo gnus-start gnus-cloud nnimap
nnmail mail-source utf7 netrc nnoo parse-time gnus-spec gnus-int
gnus-range gnus-win misearch multi-isearch qp mm-uu org-table eieio-opt
speedbar sb-image ezimage dframe apropos gnus gnus-ems nnheader mml2015
message-templ url-util url-parse url-vars org-capture cursor-sensor
sendmail mm-archive sort company-files company-oddmuse company-keywords
company-etags etags xref project company-gtags company-dabbrev-code
company-dabbrev company-capf company-cmake company-ropemacs
company-xcode company-clang company-semantic company-eclim
company-template company-css company-nxml company-bbdb company mail-extr
shr-color shr dom browse-url notmuch hl-line notmuch-message
notmuch-tree notmuch-show notmuch-print notmuch-crypto notmuch-wash
coolj notmuch-query goto-addr icalendar edmacro kmacro notmuch-jump
notmuch-hello notmuch-mua notmuch-draft notmuch-tag notmuch-maildir-fcc
notmuch-address notmuch-company notmuch-parser notmuch-lib
notmuch-version notmuch-compat cl mm-view mml-smime smime dig mailcap
wid-edit view cal-china lunar solar cal-dst cal-bahai cal-islam
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bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[Eli Zaretskii]

> From: David Bremner <david@tethera.net>
> Date: Fri, 06 Jan 2017 07:59:06 -0400
> 
> Like many people I share emacs configuration between emacs 24 and emacs
> 25.
> 
> Emacs 25.1 customize wants to clean up by deleting obsolete variables,
> and in particular x-select-enable-primary. Unfortunately this breaks my
> workflow for for emacs 24.

Can you describe the scenario in more detail?  Are you customarily run
customize, even after your basic configuration is set up?  Otherwise,
I don't understand what is the trigger for that "cleanup".

> I believe the docstring for select-enable-primary is incorrect in
> stating the variable is available since 24.1

Yes, that appears to be a typo; I fixed it now.

Thanks.

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[David Bremner]

Eli Zaretskii <eliz@gnu.org> writes:

> Can you describe the scenario in more detail?  Are you customarily run
> customize, even after your basic configuration is set up?  Otherwise,
> I don't understand what is the trigger for that "cleanup".

Yes, once or twice a week I change some setting using customize while
using emacs25, and the cleanup is triggered then. I use a few
"applications" in emacs like IRC (circe) and email (notmuch) that have a
fairly dynamic set of settings.

I guess I could migrate the setting of x-select-enable-primary out of
customize and into my init.el. I wonder if maybe there should have been
a period of deprecation before marking the variables obsolete. I guess
that can't be helped now in any case.

d

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[Eli Zaretskii]

> From: David Bremner <david@tethera.net>
> Cc: 25375@debbugs.gnu.org
> Date: Fri, 06 Jan 2017 09:49:47 -0400
> 
> I guess I could migrate the setting of x-select-enable-primary out of
> customize and into my init.el.

I think a better idea is to use different customization files for
different Emacs versions.  The Emacs user manual shows how to do that
in "Saving Customizations".

> I wonder if maybe there should have been a period of deprecation
> before marking the variables obsolete.

Declaring a variable obsolete _is_ the indication that it's
deprecated.

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[David Bremner]

Eli Zaretskii <eliz@gnu.org> writes:

>> I guess I could migrate the setting of x-select-enable-primary out of
>> customize and into my init.el.
>
> I think a better idea is to use different customization files for
> different Emacs versions.  The Emacs user manual shows how to do that
> in "Saving Customizations".
>

That solution forces me to keep the two files synchronized. I don't see
an easy way to do that.

d

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[Eli Zaretskii]

> From: David Bremner <david@tethera.net>
> Cc: 25375@debbugs.gnu.org
> Date: Fri, 06 Jan 2017 10:25:45 -0400
> 
> > I think a better idea is to use different customization files for
> > different Emacs versions.  The Emacs user manual shows how to do that
> > in "Saving Customizations".
> >
> 
> That solution forces me to keep the two files synchronized. I don't see
> an easy way to do that.

Keep the common part in one place, and the disparate parts separate?

bug#25375: 25.1; how to configure (x-)select-enable-primary compatible with emacs24

[Drew Adams]

> > I guess I could migrate the setting of x-select-enable-primary out of
> > customize and into my init.el.
> 
> I think a better idea is to use different customization files for
> different Emacs versions.  The Emacs user manual shows how to do that
> in "Saving Customizations".
> 
> > I wonder if maybe there should have been a period of deprecation
> > before marking the variables obsolete.
> 
> Declaring a variable obsolete _is_ the indication that it's
> deprecated.

That's your definition, for Emacs development.  They are not
the same thing, in general.

http://lmgtfy.com/?q=obsolete+vs+deprecated