bug#11410: 24.1.50; package.el `emacs' package information is broken

[Toby Cubitt]

The Elisp manual "Conventional Headers for Emacs Libraries" node says:

    The package code automatically defines a package named `emacs'
    with the version number of the currently running Emacs.  This can
    be used to require a minimal version of Emacs for a package.

However, the version number for the `emacs' package is null in my Emacs
build (a very recent bzr checkout), and the package description for the
`emacs' package reads "abbrev mode commands for Emacs"!?!

Here's the package description displayed by package.el:

  emacs is a built-in package.

      Status: Built-in.
      Summary: abbrev mode commands for Emacs

And here's the relevant element of `package--builtins' from my
finder-inf.el:

  (emacs . [nil nil "abbrev mode commands for Emacs"])

This breaks installation of any ELPA packages that depend on a minimum
Emacs version.

Toby



In GNU Emacs 24.1.50.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
 of 2012-05-03 on c3po
Windowing system distributor `The X.Org Foundation', version 11.0.11102000
Configured using:
 `configure '--prefix=/usr' '--host=i686-pc-linux-gnu'
 '--mandir=/usr/share/man' '--infodir=/usr/share/info'
 '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib'
 '--disable-dependency-tracking' '--program-suffix=-emacs-24'
 '--infodir=/usr/share/info/emacs-24'
 '--enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.5.3/../../../../lib'
 '--with-gameuser=games' '--without-compress-info'
 '--disable-maintainer-mode' '--without-hesiod' '--without-kerberos'
 '--without-kerberos5' '--with-gpm' '--with-dbus' '--without-gnutls'
 '--without-xml2' '--without-selinux' '--without-sound' '--with-x'
 '--without-ns' '--without-gconf' '--without-gsettings'
 '--with-toolkit-scroll-bars' '--without-wide-int' '--without-gif'
 '--without-jpeg' '--with-png' '--with-rsvg' '--without-tiff'
 '--with-xpm' '--without-imagemagick' '--with-xft' '--without-libotf'
 '--without-m17n-flt' '--with-x-toolkit=gtk' 'EBZR_BRANCH=trunk'
 'EBZR_REVNO=108111' '--build=i686-pc-linux-gnu'
 'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu'
 'CFLAGS=-march=prescott -O2 -pipe -O2' 'LDFLAGS=-Wl,-O1
 -Wl,--as-needed' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.utf-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

-- 
Dr T. S. Cubitt
Mathematics and Quantum Information group
Department of Mathematics
Complutense University
Madrid, Spain

email: tsc25@cantab.net
web:   www.dr-qubit.org