Don't call pkg_info to get the installed Emacs version; always use the
version matching EMACS_TYPE set by users. Be DEPENDS to it. This should
address pkg/37146 by Aleksey Cheusov.
While here convert some emacs lisp packages to user-destdir.
1) Simplify the way how an emacs version is picked when no emacs
is installed, but a user try to install an Emacs Lisp package.
Just pick up the version set as EMACS_TYPE than searching for
versions already installed etc. If the EMACS_TYPE version is
not supported by the Emacs Lisp Package, just fail. EMACS_TYPE
be default to GNU Emacs 21.
(In other words, users should set EMACS_TYPE as they want.
Otherwise GNU Emacs 21 is used.)
2) All Emacs Lisp Packages *must* prepend EMACS_PKGNAME_PREFIX to
a) the PKGNAME itself, and b) PKGNAME in its dependency lines.
EMACS_PKGNAME_PREFIX is expanded to "xemacs-" when XEmacs is
used. This keeps dependency graph of Emacs-Lisp-packages-
installed-for-XEmacs consistent.
3) Document EMACS_* variables as much as possible.
4) Provide more cookies for PLIST. Maybe utilized later.
Note that the 2) change doesn't affect the default, GNU Emacs 21
behaviour. So no version / revision bumps in this commit.
* FEATURES
- XSL customization group for setting some variables
- Initial stylesheet inserted into empty XSL buffers;
- "Template" menu for jumping to template rules, named templates, key
declarations, and attribute-set declarations in the buffer;
- `xsl-process' function that runs an XSL processor and collects the
output;
- Predefined command line templates and error regexps for Java and
Windows executable versions of both XT and Saxon;
- Font lock highlighting so that the important information stands
out;
- `xsl-complete' function for inserting element and attribute names;
- `xsl-insert-tag' function for inserting matching start- and
end-tags;
- Automatic completion of end-tags;
- Automatic indenting of elements with user-definable indentation
step;
- `xsl-if-to-choose' converts <xsl:if> to <xsl:choose> with
nested <xsl:when>; and
- Comprehensive abbreviations table to further ease typing.
