This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.
created or not. Packages that include other ELP's buildlink3.mk must define
EMACS_BUILDLINK. Other packages don't create wrappers, which reduces build
time a lot.
Below is a simplified etc/NEWS; see the real file for full detail!
----
* Changes in Emacs 22.3
** Support for several obsolete platforms will be removed in the next
major version of Emacs.
*** Support for systems without alloca will be removed.
*** Support for Sun windows will be removed.
*** Support for VMS will be removed.
* Incompatible Editing Changes in Emacs 22.3
** The following input methods were removed in Emacs 22.2, but this was
not advertised: danish-alt-postfix, esperanto-alt-postfix,
finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix,
norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix,
and swedish-alt-postfix. Use the versions without "alt-", which are
identical.
* Installation Changes in Emacs 22.2
** Emacs is now licensed under the GNU GPL version 3 (or later).
** Support for GNU/kFreeBSD (GNU userland and FreeBSD kernel) was added.
** Deprecated machine types and operating systems
(snip)
* Changes in Emacs 22.2
** `describe-project' is renamed to `describe-gnu-project'.
** `view-todo' is renamed to `view-emacs-todo'.
** `find-name-dired' now uses -iname rather than -name
for case-insensitive filesystems.
** In Image mode, whenever the displayed image is wider and/or higher
than the window, the usual keys for moving the cursor cause the image
to be scrolled horizontally or vertically instead.
** Emacs can use stock icons in the tool bar when compiled with Gtk+.
** Scrollbars follow the system theme on Windows XP and later.
** focus-follows-mouse defaults to nil on MS Windows.
** `bad-packages-alist' will warn about external packages that are known
to cause problems in this version of Emacs.
** The values of `dired-recursive-deletes' and `dired-recursive-copies'
have been changed to `top'.
** `browse-url-emacs' loads a URL into an Emacs buffer. Handy for *.el URLs.
** The command gdba has been removed as gdb works now for those cases where it
was needed.
** desktop.el now detects conflicting uses of the desktop file.
** Compilation mode now correctly respects the value of
`compilation-scroll-output' between invocations.
** `font-lock-comment-face' no longer differs from the default on
displays with fewer than 16 colors and dark background (e.g. older
xterms and the Linux console).
* New Modes and Packages in Emacs 22.2
** bibtex-style-mode helps you write BibTeX's *.bst files.
** The new package css-mode.el provides a major mode for editing CSS files.
** The new package vera-mode.el provides a major mode for editing Vera files.
** The new package verilog-mode.el provides a major mode for editing Verilog files.
** The new package socks.el implements the SOCKS v5 protocol.
** VC
*** VC backends can provide completion of revision names.
*** VC backends can provide extra menu entries to the "Version Control" menu.
This can be used to add menu entries for backend specific functions.
*** VC has some support for Mercurial (Hg).
*** VC has some support for Monotone (Mtn).
*** VC has some support for Bazaar (Bzr).
*** VC has some support for Git.
* Incompatible Lisp Changes in Emacs 22.2
** shell.el no longer defines the aliases `dirtrack-toggle' and
`dirtrack-mode' for `shell-dirtrack-mode'.
* Lisp Changes in Emacs 22.2.
** Frame-local variables are deprecated and are slated for removal.
** The function invisible-p returns non-nil if the character
after a specified position is invisible.
** inhibit-modification-hooks is bound to t while running modification hooks.
** New function `window-full-width-p' returns t if a window is as wide
as its frame.
** The new function `image-refresh' refreshes all images associated
with a given image specification.
** The new function `combine-and-quote-strings' concatenates a list of strings
using a specified separator. If a string contains double quotes, they
are escaped in the output.
** The new function `split-string-and-unquote' performs the inverse operation to
`combine-and-quote-strings', i.e. splits a single string into a list
of strings, undoing any quoting added by `combine-and-quote-strings'.
(For some separator/string combinations, the original strings cannot
be recovered.)
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.
- Fix unsafe handling of local variables iin hack-local-variables
(CVE-2007-5795).
- Prevent symlink attack on arbitrary files using the temp files vcdiff
generates (CVE-2008-1694).
(1) Get rid of "nox11" -- the concept of "no" in package options is
expressed by negating an option; use "-x11" instead.
(2) Teach editors/emacs20 to use package options instead of EMACS_USE_POP,
EMACS_USE_X, EMACS_USE_X_TOOLKIT and USE_INET6. We now use similar
options as the other emacs packages, i.e. "x11", "motif", "xaw",
as well as "pop" and "inet6".
(3) Make the emacs*-nox11 packages simply remove all X11 options by
setting PKG_OPTIONS.emacs appropriately and include the corresponding
emacs Makefile. This allows for modifications to the emacs "X11"
versions to be automatically picked up by the "non-X11" versions.
The two corresponding versions of emacs now share the same version
numbering, including PKGREVISIONs.
Bump the PKGREVISIONs on all Emacs editor packages.
