Ref http://lists.gnu.org/archive/html/emacs-devel/2012-04/msg00354.html
* configure.in (INFO_EXT, INFO_OPTS): New output variables.
* doc/emacs/Makefile.in (INFO_EXT, INFO_OPTS): New, set by configure.
(info, infoclean): Use $INFO_EXT.
($(infodir)/emacs$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
* doc/emacs/makefile.w32-in (INFO_EXT, INFO_OPTS): New.
(INFO_TARGETS): Use $INFO_EXT.
($(infodir)/emacs$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT, and -o.
* doc/lispintro/Makefile.in (INFO_EXT, INFO_OPTS): New, set by configure.
(info, infoclean): Use $INFO_EXT.
(${infodir}/eintr$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
* doc/lispintro/makefile.w32-in (INFO_EXT, INFO_OPTS): New.
(INFO_TARGETS, clean): Use $INFO_EXT.
($(infodir)/eintr$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
* doc/lispref/Makefile.in (INFO_EXT, INFO_OPTS): New, set by configure.
(info, infoclean): Use $INFO_EXT.
($(infodir)/elisp$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
* doc/lispref/makefile.w32-in (INFO_EXT, INFO_OPTS): New.
(info, maintainer-clean): Use $INFO_EXT.
($(infodir)/elisp$(INFO_EXT)): Use $INFO_EXT and $INFO_OPT.
* doc/misc/Makefile.in (INFO_EXT, INFO_OPTS): New, set by configure.
(INFO_TARGETS): Use $INFO_EXT.
Make all rules generating info files use $INFO_EXT, $INFO_OPT, and -o.
* doc/misc/makefile.w32-in (INFO_EXT, INFO_OPTS): New.
(INFO_TARGETS): Use $INFO_EXT.
Make all rules generating info files use $INFO_EXT, $INFO_OPT, and -o.
* src/editfns.c (TM_YEAR_IN_ASCTIME_RANGE): Remove.
(Fcurrent_time_string): Support any year that is supported by the
underlying localtime representation. Don't use asctime, as it
has undefined behavior for years outside the range -999..9999.
* doc/lispref/os.texi (Time of Day): Do not limit current-time-string
to years 1000..9999.
* etc/NEWS: Do not limit current-time-string to years 1000..9999.
* doc/emacs/programs.texi (Programs, Electric C): Copyedits.
(Program Modes): Add xref to Fortran.
(Left Margin Paren): Remove what was (oddly enough) the only use
of defvar in the entire Emacs manual.
(Hungry Delete): Remove footnote about ancient Emacs version.
(Other C Commands): Use example rather than smallexample.
Change cross-reference.
Use example rather than smallexample (these examples are not wide,
smallexample saves little vertical space, but makes things harder to
read).
The sed '/ing directory/d' piece is to remove the annoying
"entering/leaving directory" messages that GNU make insists on
printing when called recursively. --no-print-directory isn't portable.
* Makefile.in (INFO_FILES): Remove variable.
(INFO_NONMISC): New variable.
(install-arch-indep, uninstall): Don't use $INFO_FILES.
* doc/misc/Makefile.in (echo-info): New phony target, used by top-level.
* doc/misc/emacs-gnutls.texi, doc/misc/ert.texi, doc/misc/org.texi:
Fix dircategory, direntry to match info/dir.
* doc/misc/viper.texi: Make direntry shorter (also it is no longer "newest").
* info/dir: Make some entries consistent with the source texi files.
Frankly, I think the edition conveys little to no information.
The version number of Emacs is much more relevant.
No-one seems to know what the rules are for updating the edition anyway...
* doc/emacs/emacs.texi (@copying): Only print EDITION in the TeX version.
* doc/lispref/elisp.texi (@copying):
* doc/lispref/intro.texi (Introduction): Only print VERSION in the TeX version.
* doc/misc/faq.texi: (File-name conventions):
Shorten section name to avoid overfull line.
(How to add fonts): Use smallexample to avoid overfull lines.
* doc/lispref/elisp.texi, doc/lispref/vol1.texi, doc/lispref/vol2.texi:
Some fixes for detailed menu.
* doc/lispref/modes.texi (Major Modes, Auto-Indentation):
* doc/lispref/buffers.texi (Buffers): Some fixes for menu descriptions.