* doc/make-stds.texi, doc/standards.texi: Update from masters.
* lib/Autom4te/Channels.pm, lib/Autom4te/Configure_ac.pm
* lib/Autom4te/FileUtils.pm, lib/Autom4te/XFile.pm: Update
from masters, so that FileUtils.pm's update_file provide --force
support.
* bin/autoheader.in: Pass $force to update_file so that
config.h.in is always recreated when --force.
* lib/Autom4te/XFile.pm ($me, &name, &lock, &truncate, &seek): New.
* bin/autom4te.in (&Request::save, &Request::load): Use an IO::File
argument instead of a file name, so that the request file remains
open during the whole autom4te run.
($icache_file): New.
(&freeze): Lock the $icache_file.
bin/autoupdate.in, bin/ifnames.in, lib/Autom4te/General.pm,
lib/Autom4te/Struct.pm, lib/Autom4te/XFile.pm: Add local variables
so that Emacs setups GNU style for perl-mode and cperl-mode.
unchanged, remove the source.
(&up_to_date_p): Don't be verbose, be debug.
* bin/autoreconf.in: No longer support --m4dir.
(&autoreconf): Display the full path of the configure.ac we are
studying.
Trace it only once.
Be sure to honor --force with gettextize.
Always run aclocal.
* doc/autoconf.texi: Adjust.