bug#16318: 24.3; customize-group shows variables from overloaded built-in packages

bug#16318: 24.3; customize-group shows variables from overloaded built-in packages

[stephen_leake]

starting from emacs -Q, with no packages installed:

(package-initialize)
(package-install 'ada-mode)
(customize-group 'ada)


This displays variables from built-in Ada mode 4.01 (for example
ada-xref-confirm-compile), even though the newer Ada mode 5.0 is
installed, which does not declare those variables.


In GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601)
 of 2013-03-17 on MARVIN
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.7) --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include
 -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include
 -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2'

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Custom

Minor modes in effect:
  display-time-mode: t
  delete-selection-mode: t
  tooltip-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
  transient-mark-mode: t

Recent input:
C-h v a d a - x r e f <tab> C-g <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <options> <customize> <customize-browse>
C-h v a d a - x r e <tab> <down> <down> C-g <up> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <right> <right>
<right> <right> <return> <down> <right> <right> <right>
<return> C-h v a d a - x r e <tab> <tab> C-g <help-echo>
M-x r e p o r t <tab> <return> p a c k a g e <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> c u s o m i <backspace> <backspace> <backspace>
t o m i <backspace> C-g C-h f b r o <tab> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> c r
<backspace> u r <tab> <backspace> <backspace> <backspace>
<backspace> <backspace> s <backspace> s <backspace>
<backspace> s t i m <backspace> <backspace> o m <tab>
i z e - b <tab> <tab> C-SPC <M-left> <M-left> <M-left>
<M-right> <M-right> <M-left> <M-right> <M-right> <delete>
C-g M-x <up> <return>

Recent messages:
Loading system routine info in idle time...
Failed to convert XML routine info, falling back on idlw-rinfo.
Could not locate any system routine information.
Loading system routine info in idle time...done
Normalizing idlwave-system-routines in idle time...done
Loading and normalizing library catalogs in idle time...done
Finishing initialization in idle time...
Scanning all buffers...
Quit
Making completion list...
Quit

Load-path shadows:
c:/Projects/emacs_stephe.work/emacs_stephe_site_lisp/vc-git hides c:/Apps/emacs-24.3/lisp/vc/vc-git
c:/home/stephe/.emacs.d/elpa/ada-mode-5.0.1/ada-mode hides c:/Apps/emacs-24.3/lisp/progmodes/ada-mode
c:/Projects/emacs_stephe.work/emacs_stephe_site_lisp/nnnil hides c:/Apps/emacs-24.3/lisp/gnus/nnnil

Features:
(shadow sort mail-extr cus-theme eieio-custom wid-browse tree-widget
emacsbug message format-spec rfc822 mml mml-sec mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mail-utils help-mode vhdl-mode hippie-exp
assoc verilog-mode diff vera-mode tcl simula sieve sieve-mode
sieve-manage sh-script executable sgml-mode ruby-mode python rx prolog
perl-mode pascal octave-mod rng-nxml rng-valid rng-loc rng-uri rng-parse
nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode
nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok modula2 smie
meta-mode m4-mode ld-script js json info-look idlwave idlwave-help
idlw-help browse-url icon hideshow fortran f90 delphi dcl-mode tempo
css-mode cperl-mode cfengine cfengine3 asm-mode antlr-mode etags
else-mode cc-langs cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles
cc-align cc-engine cc-vars cc-defs gnat-inspect ada-skel ada-skeletons
skeleton ada-xref-tool ada-gnat-xref ada-compiler ada-gnat-compile
gnat-core ada-indent-engine ada-wisi ada-indent-user-options
ada-grammar-wy wisi-compile semantic/wisent/comp wisi wisi-parse
semantic/wisent semantic/wisent/wisent semantic/util-modes semantic/util
semantic semantic/tag semantic/lex semantic/fw mode-local cedet
ada-fix-error ada-build ada-mode which-func imenu align find-file sql
thingatpt ps-mode cus-edit xgit-core bzr-core xmtn-minimal dvc-log
log-edit pcvs-util vc vc-dispatcher ediff-merg ediff-diff ediff-wind
ediff-help ediff-util ediff-mult ediff-init ediff dvc-unified dvc-tips
ffap url-parse auth-source eieio byte-opt bytecomp byte-compile cconv
gnus-util mm-util mail-prsvr password-cache url-vars add-log
dvc-autoloads dvc-core dvc-lisp dvc-buffers dvc-ui dvc-register
dvc-utils dvc-emacs ewoc dvc-defs dvc-site uniquify advice help-fns
advice-preload time delsel cus-start cus-load color-theme cl-macs gv
edmacro kmacro wid-edit cl cl-lib noutline outline easy-mmode iswitchb
whitespace dired-x dired-aux dired compile comint ansi-color ring
ada-mode-autoloads info easymenu wisi-autoloads finder-inf package
time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel dos-w32
ls-lisp w32-common-fns disp-table w32-win w32-vars tool-bar dnd fontset
image regexp-opt fringe tabulated-list newcomment lisp-mode register
page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock
font-lock syntax facemenu font-core frame cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew
greek romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process w32 multi-tty emacs)

bug#16318: 24.3; customize-group shows variables from overloaded built-in packages

[Lars Ingebrigtsen]

stephen_leake@stephe-leake.org writes:

> starting from emacs -Q, with no packages installed:
>
> (package-initialize)
> (package-install 'ada-mode)
> (customize-group 'ada)
>
> This displays variables from built-in Ada mode 4.01 (for example
> ada-xref-confirm-compile), even though the newer Ada mode 5.0 is
> installed, which does not declare those variables.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

ada-mode is no longer bundled with Emacs, so this is presumably not a
problem still.  I guess it could be a problem with other packages like
this (if defcustoms from those packages end up in loaddefs), but
there will probably not be any progress here unless somebody comes up
with an example of that phenomenon, so I'm closing this bug report.  (If
somebody sees something like this, opening a new bug report is probably
for the best.)

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