Merge branch 'maint'

* maint:
  sync: update files from upstream with "make fetch"
  gitignore: align with recent changes
  fixup: add dummy rule for ChangeLog generation in Makefile.am
  maint: no longer use AM_MAKEFLAGS in maintainer rules
  maint: use more GNU make features in maintainer rules
  maint: move maintainer make rules in maint.mk

5 files changed, 485 insertions, 470 deletions

diff --git a/.gitignore b/.gitignore
index b800a68d7..a32310e70 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,7 +35,7 @@
 /doc/amhello/depcomp
 /doc/amhello/install-sh
 /doc/amhello/missing
-/doc/web-manuals
+/doc/web-manual
 /lib/Automake/Config.pm
 /test-suite.log
 /t/wrap/aclocal-1.*
diff --git a/GNUmakefile b/GNUmakefile
index 7ab58ca78..c8eab6fd8 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -25,6 +25,7 @@ ifeq ($(wildcard Makefile),)
   $(error Fatal Error)
 endif
 include ./Makefile
+include $(srcdir)/maint.mk
 include $(srcdir)/syntax-checks.mk
 
 else # ! bootstrap in $(MAKECMDGOALS)
diff --git a/Makefile.am b/Makefile.am
index f3eb432d7..568652804 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,6 +69,7 @@ EXTRA_DIST += \
   $(AUTOMAKESOURCES) \
   bootstrap.sh \
   GNUmakefile \
+  maint.mk \
   syntax-checks.mk \
   HACKING
 
@@ -115,6 +116,11 @@ INSTALL: lib/INSTALL
 maintainer-clean-local:
 	rm -rf .autom4te.cache
 
+# So that automake won't complain about the missing ChangeLog.
+# The real rule for ChangeLog generation is now in maint.mk (as
+# it is maintainer-specific).
+ChangeLog:
+
 
 ## -------------------------------------------------------------------- ##
 ##  Auxiliary scripts and files for use with "automake --add-missing".  ##
@@ -661,465 +667,3 @@ EXTRA_DIST += \
   old/ChangeLog.09 \
   old/ChangeLog.11 \
   old/TODO
-
-
-##########################################################################
-
-## Everything past here is useful to the maintainer, but probably not
-## to anybody else.
-
-##########################################################################
-
-
-## --------------------------------------------------------- ##
-##  Automatic generation of the ChangeLog from git history.  ##
-## --------------------------------------------------------- ##
-
-gitlog_to_changelog_command = $(PERL) $(srcdir)/lib/gitlog-to-changelog
-gitlog_to_changelog_fixes = $(srcdir)/.git-log-fix
-gitlog_to_changelog_options = --amend=$(gitlog_to_changelog_fixes) \
-                              --since='2011-12-28 00:00:00' \
-                              --no-cluster --format '%s%n%n%b'
-
-EXTRA_DIST += lib/gitlog-to-changelog
-EXTRA_DIST += $(gitlog_to_changelog_fixes)
-
-# When executed from a git checkout, generate the ChangeLog from the git
-# history.  When executed from an extracted distribution tarball, just
-# copy the distributed ChangeLog in the build directory (and if this
-# fails, or if no distributed ChangeLog file is present, complain and
-# give an error).
-#
-# We need the apparently useless dependency from another .PHONY target
-# 'am--changelog-regen-hook' to work around a bug of Solaris make, which
-# doesn't execute the recipe of a target named as an existing file, even
-# if such target is declared '.PHONY' (yikes!)
-#
-.PHONY: am--changelog-regen-hook
-am--changelog-regen-hook:
-ChangeLog: am--changelog-regen-hook
-	$(AM_V_GEN)set -e; set -u; \
-## The ChangeLog should be regenerated unconditionally when working from
-## checked-out sources; otherwise, if we're working from a distribution
-## tarball, we expect the ChangeLog to be distributed, so check that it
-## is indeed present in the source directory.
-	if test -d $(srcdir)/.git; then \
-	  rm -f $@-t \
-	    && $(gitlog_to_changelog_command) \
-	       $(gitlog_to_changelog_options) >$@-t \
-	    && chmod a-w $@-t \
-	    && mv -f $@-t $@ \
-	    || exit 1; \
-	elif test ! -f $(srcdir)/$@; then \
-	  echo "Source tree is not a git checkout, and no pre-existent" \
-	       "$@ file has been found there" >&2; \
-	  exit 1; \
-	fi
-
-
-## --------------------------- ##
-##  Perl coverage statistics.  ##
-## --------------------------- ##
-
-PERL_COVERAGE_DB = $(abs_top_builddir)/cover_db
-PERL_COVERAGE_FLAGS = -MDevel::Cover=-db,$(PERL_COVERAGE_DB),-silent,on,-summary,off
-PERL_COVER = cover
-
-check-coverage-run recheck-coverage-run: all
-	$(mkinstalldirs) $(PERL_COVERAGE_DB)
-	PERL5OPT="$$PERL5OPT $(PERL_COVERAGE_FLAGS)"; export PERL5OPT; \
-	WANT_NO_THREADS=yes; export WANT_NO_THREADS; unset AUTOMAKE_JOBS; \
-	$(MAKE) $(AM_MAKEFLAGS) `echo $@ | sed 's/-coverage-run//'`
-
-check-coverage-report:
-	@if test ! -d "$(PERL_COVERAGE_DB)"; then \
-	  echo "No coverage database found in '$(PERL_COVERAGE_DB)'." >&2; \
-	  echo "Please run \"make check-coverage\" first" >&2; \
-	  exit 1; \
-	fi
-	$(PERL_COVER) $(PERL_COVER_FLAGS) "$(PERL_COVERAGE_DB)"
-
-# We don't use direct dependencies here because we'd like to be able
-# to invoke the report even after interrupted check-coverage.
-check-coverage: check-coverage-run
-	$(MAKE) $(AM_MAKEFLAGS) check-coverage-report
-
-recheck-coverage: recheck-coverage-run
-	$(MAKE) $(AM_MAKEFLAGS) check-coverage-report
-
-clean-coverage:
-	rm -rf "$(PERL_COVERAGE_DB)"
-clean-local: clean-coverage
-
-.PHONY: check-coverage recheck-coverage check-coverage-run \
-	recheck-coverage-run check-coverage-report clean-coverage
-
-
-## ---------------------------------------------------- ##
-##  Tagging and/or uploading stable and beta releases.  ##
-## ---------------------------------------------------- ##
-
-GIT = git
-
-EXTRA_DIST += lib/gnupload
-
-base_version_rx = ^[1-9][0-9]*\.[0-9][0-9]*
-stable_major_version_rx = $(base_version_rx)$$
-stable_minor_version_rx = $(base_version_rx)\.[0-9][0-9]*$$
-beta_version_rx = $(base_version_rx)(\.[0-9][0-9]*)?[bdfhjlnprtvxz]$$
-match_version = echo "$(VERSION)" | $(EGREP) >/dev/null
-
-## Check that we don't have uncommitted or unstaged changes.
-## TODO: Maybe the git suite already offers a shortcut to verify if the
-## TODO: working directory is "clean" or not?  If yes, use that instead
-## TODO: of duplicating the logic here.
-git_must_have_clean_workdir = \
-  $(GIT) rev-parse --verify HEAD >/dev/null \
-    && $(GIT) update-index -q --refresh \
-    && $(GIT) diff-files --quiet \
-    && $(GIT) diff-index --quiet --cached HEAD \
-    || fatal "you have uncommitted or unstaged changes"
-
-determine_release_type = \
-  if $(match_version) '$(stable_major_version_rx)'; then \
-    release_type='Major release'; \
-    announcement_type='major release'; \
-    dest=ftp; \
-  elif $(match_version) '$(stable_minor_version_rx)'; then \
-    release_type='Minor release'; \
-    announcement_type='maintenance release'; \
-    dest=ftp; \
-  elif $(match_version) '$(beta_version_rx)'; then \
-    release_type='Beta release'; \
-    announcement_type='test release'; \
-    dest=alpha; \
-  else \
-    fatal "invalid version '$(VERSION)' for a release"; \
-  fi
-
-# Help the debugging of $(determine_release_type) and related code.
-print-release-type:
-	@set -e -u \
-	  && fatal () { echo "$@: $$*"; exit 0; } \
-	  && $(determine_release_type) \
-	  && echo "$$release_type $(VERSION);" \
-	          "it will be announced as a $$announcement_type"
-
-git-tag-release: maintainer-check
-	@set -e; set -u; \
-	fatal () { echo "$@: $$*; not tagging" >&2; exit 1; }; \
-	case '$(AM_TAG_DRYRUN)' in \
-	  ""|[nN]|[nN]o|NO) run="";; \
-	  *) run="echo Running:";; \
-	esac; \
-	$(determine_release_type); \
-	$(git_must_have_clean_workdir); \
-## If all was successful, tag the release in the local repository.
-	$$run $(GIT) tag -s "v$(VERSION)" -m "$$release_type $(VERSION)"
-
-git-upload-release:
-	@set -e; set -u; \
-	fatal () { echo "$@: $$*; not releasing" >&2; exit 1; }; \
-	$(determine_release_type); \
-	dest=$$dest.gnu.org:automake; \
-	$(git_must_have_clean_workdir); \
-## Check that we are releasing from a valid tag.
-	tag=`$(GIT) describe` \
-	  && case $$tag in "v$(VERSION)") true;; *) false;; esac \
-	  || fatal "you can only create a release from a tagged version"; \
-## Build and upload the distribution tarball(s).
-	$(MAKE) $(AM_MAKEFLAGS) dist || exit 1; \
-	echo Will upload to $$dest: $(DIST_ARCHIVES); \
-	$(srcdir)/lib/gnupload $(GNUPLOADFLAGS) --to $$dest $(DIST_ARCHIVES)
-
-.PHONY: print-release-type git-upload-release git-tag-release
-
-
-## ------------------------------------------------------------------ ##
-##  Explore differences of autogenerated files in different commits.  ##
-## ------------------------------------------------------------------ ##
-
-## Visually comparing differences between the Makefile.in files in
-## automake's own build system as generated in two different branches
-## might help to catch bugs and blunders.  This has already happened a
-## few times in the past, when we used to version-control Makefile.in.
-autodiffs:
-	@set -u; \
-	 NEW_COMMIT=$${NEW_COMMIT-"HEAD"}; \
-	 OLD_COMMIT=$${OLD_COMMIT-"HEAD~1"}; \
-	 am_gitdir='$(abs_top_srcdir)/.git'; \
-	 get_autofiles_from_rev () \
-	 { \
-	     rev=$$1 dir=$$2 \
-	       && echo "$@: will get files from revision $$rev" \
-	       && $(GIT) clone -q --depth 1 "$$am_gitdir" tmp \
-	       && $(am__cd) tmp \
-	       && $(GIT) checkout -q "$$rev" \
-	       && echo "$@: bootstrapping $$rev" \
-	       && $(SHELL) ./bootstrap.sh \
-	       && echo "$@: copying files from $$rev" \
-	       && makefile_ins=`find . -name Makefile.in` \
-	       && (tar cf - configure aclocal.m4 $$makefile_ins) | \
-	          (cd .. && $(am__cd) "$$dir" && tar xf -) \
-	       && cd .. \
-	       && rm -rf tmp; \
-	 }; \
-	 outdir=$@.dir \
-## Before proceeding, ensure the specified revisions truly exist.
-	   && $(GIT) --git-dir="$$am_gitdir" describe $$OLD_COMMIT >/dev/null \
-	   && $(GIT) --git-dir="$$am_gitdir" describe $$NEW_COMMIT >/dev/null \
-	   && rm -rf $$outdir \
-	   && mkdir $$outdir \
-	   && $(am__cd) $$outdir \
-	   && mkdir new old \
-	   && get_autofiles_from_rev $$OLD_COMMIT old \
-	   && get_autofiles_from_rev $$NEW_COMMIT new \
-	   && exit 0
-
-## With lots of eye candy; we like our developers pampered and spoiled :-)
-compare-autodiffs: autodiffs
-	@set -u; \
-	: $${COLORDIFF=colordiff} $${DIFF=diff}; \
-	dir=autodiffs.dir; \
-	if test ! -d "$$dir"; then \
-	  echo "$@: $$dir: Not a directory" >&2; \
-	  exit 1; \
-	fi; \
-	mydiff=false mypager=false; \
-	if test -t 1; then \
-	  if ($$COLORDIFF -r . .) </dev/null >/dev/null 2>&1; then \
-	    mydiff=$$COLORDIFF; \
-	    mypager="less -R"; \
-	  else \
-	    mypager=less; \
-	  fi; \
-	else \
-	  mypager=cat; \
-	fi; \
-	if test "$$mydiff" = false; then \
-	  if ($$DIFF -r -u . .); then \
-	    mydiff=$$DIFF; \
-	  else \
-	    echo "$@: no good-enough diff program specified" >&2; \
-	    exit 1; \
-	  fi; \
-	fi; \
-	st=0; $$mydiff -r -u $$dir/old $$dir/new | $$mypager || st=$$?; \
-	rm -rf $$dir; \
-	exit $$st
-.PHONY: autodiffs compare-autodiffs
-
-## ---------------------------------------------- ##
-##  Help writing the announcement for a release.  ##
-## ---------------------------------------------- ##
-
-PACKAGE_MAILINGLIST = automake@gnu.org
-
-announcement: NEWS
-	$(AM_V_GEN): \
-	  && rm -f $@ $@-t \
-	  && fatal () { echo "$@: $$*" >&2; exit 1; } \
-	  && $(determine_release_type) \
-	  && ftp_base="ftp://$$dest.gnu.org/gnu/$(PACKAGE)" \
-	  && X () { printf '%s\n' "$$*" >> $@-t; } \
-	  && X "We are pleased to announce the $(PACKAGE_NAME) $(VERSION)" \
-	       "$$announcement_type." \
-	  && X \
-	  && X "**TODO** Brief description of the release here." \
-	  && X \
-	  && X "**TODO** This description can span multiple paragraphs." \
-	  && X \
-	  && X "See below for the detailed list of changes since the" \
-	  && X "previous version, as summarized by the NEWS file." \
-	  && X \
-	  && X "Download here:" \
-	  && X \
-	  && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.gz" \
-	  && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.xz" \
-	  && X \
-	  && X "Please report bugs and problems to" \
-	       "<$(PACKAGE_BUGREPORT)>," \
-	  && X "and send general comments and feedback to" \
-	       "<$(PACKAGE_MAILINGLIST)>." \
-	  && X \
-	  && X "Thanks to everyone who has reported problems, contributed" \
-	  && X "patches, and helped testing Automake!" \
-	  && X \
-	  && X "-*-*-*-" \
-	  && X \
-	  && sed -n -e '/^~~~/q' -e p $(srcdir)/NEWS >> $@-t \
-	  && mv -f $@-t $@
-.PHONY: announcement
-CLEANFILES += announcement
-
-## --------------------------------------------------------------------- ##
-##  Synchronize third-party files that are committed in our repository.  ##
-## --------------------------------------------------------------------- ##
-
-# Program to use to fetch files.
-WGET = wget
-
-# Some repositories we sync files from.
-SV_CVS    = 'http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~/'
-SV_GIT_CF = 'http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;hb=HEAD;f='
-SV_GIT_AC = 'http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=blob_plain;hb=HEAD;f='
-SV_GIT_GL = 'http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;hb=HEAD;f='
-
-# Files that we fetch and which we compare against.
-# Note that the 'lib/COPYING' file must still be synced by hand.
-FETCHFILES = \
-  $(SV_GIT_CF)config.guess \
-  $(SV_GIT_CF)config.sub \
-  $(SV_CVS)texinfo/texinfo/doc/texinfo.tex \
-  $(SV_CVS)texinfo/texinfo/util/gendocs.sh \
-  $(SV_CVS)texinfo/texinfo/util/gendocs_template \
-  $(SV_GIT_GL)build-aux/gitlog-to-changelog \
-  $(SV_GIT_GL)build-aux/gnupload \
-  $(SV_GIT_GL)build-aux/update-copyright \
-  $(SV_GIT_GL)doc/INSTALL
-
-# Fetch the latest versions of few scripts and files we care about.
-fetch:
-	$(AM_V_at)rm -rf Fetchdir
-	$(AM_V_at)mkdir Fetchdir
-	$(AM_V_GEN)set -e; \
-	if $(AM_V_P); then wget_opts=; else wget_opts=-nv; fi; \
-	for url in $(FETCHFILES); do \
-	   file=`printf '%s\n' "$$url" | sed 's|^.*/||; s|^.*=||'`; \
-## A retrieval failure usually means a serious problem.  Just bail out.
-	   $(WGET) $$wget_opts "$$url" -O Fetchdir/$$file || exit 1; \
-	   if cmp Fetchdir/$$file $(srcdir)/lib/$$file >/dev/null; then \
-	     : Nothing to do; \
-	   else \
-	     echo "$@: updating file $$file"; \
-## Ditto for a copying failure.
-	     cp Fetchdir/$$file $(srcdir)/lib/$$file || exit 1; \
-	   fi; \
-	done
-	$(AM_V_at)rm -rf Fetchdir
-.PHONY: fetch
-
-## ---------------------------------------------------------------------- ##
-##  Generate and upload manuals in several formats, for the GNU website.  ##
-## ---------------------------------------------------------------------- ##
-
-web_manual_dir = doc/web-manual
-
-RSYNC = rsync
-CVS = cvs
-CVSU = cvsu
-CVS_USER = $${USER}
-WEBCVS_ROOT = cvs.savannah.gnu.org:/web
-
-web-manual:
-	$(AM_V_at)rm -rf $(web_manual_dir)
-	$(AM_V_GEN)tmp=$@.dir \
-	  && rm -rf $$tmp \
-	  && mkdir $$tmp \
-	  && $(am__cd) $$tmp \
-	  && GENDOCS_TEMPLATE_DIR='$(abs_srcdir)/lib' \
-	  && export GENDOCS_TEMPLATE_DIR \
-## Needed to pacify extra checks from gendocs.sh.
-	  && $(LN_S) '$(abs_srcdir)/doc/$(PACKAGE).texi' . \
-## Try to respect silent rules.
-	  && if $(AM_V_P); then :; else exec >/dev/null 2>&1; fi \
-## Finally generate the manual in several formats.
-	  && $(SHELL) '$(abs_srcdir)/lib/gendocs.sh' \
-	     -I '$(abs_srcdir)/doc' --email $(PACKAGE_BUGREPORT) \
-	     $(PACKAGE) '$(PACKAGE_NAME)'
-	$(AM_V_at)tmp=$@.dir \
-	 && mkdir $(web_manual_dir) \
-	 && mv -f $$tmp/manual/* $(web_manual_dir) \
-	 && rm -rf $$tmp \
-	 && { ! $(AM_V_P) || ls -l $(web_manual_dir); }
-.PHONY: web-manual
-
-web-manual-update:
-	$(AM_V_at)fatal () { echo "$@: $$*" >&2; exit 1; }; \
-	$(determine_release_type); \
-	case $$release_type in \
-	  [Mm]ajor\ release|[Mm]inor\ release);; \
-	  *) echo "Cannot upload manuals from a \"$$release_type\"" >&2; \
-	     exit 1;; \
-	esac
-	$(AM_V_at)test -f $(web_manual_dir)/$(PACKAGE).html || { \
-	  echo 'You have to run "$(MAKE) web-manuals" before' \
-	       'invoking "$(MAKE) $@"' >&2; \
-	  exit 1; \
-	}
-	$(AM_V_GEN): \
-	  && CVS_RSH=ssh && export CVS_RSH=ssh \
-	  && tmp=$@.dir \
-	  && rm -rf $$tmp \
-	  && mkdir $$tmp \
-	  && $(am__cd) $$tmp \
-	  && $(CVS) -z3 -d :ext:$(CVS_USER)@$(WEBCVS_ROOT)/$(PACKAGE) \
-	            co $(PACKAGE) \
-	  && cd .. \
-## According to the rsync manpage, "a trailing slash on the source [...]
-## avoids creating an additional directory level at the destination".
-## So the trailing '/' after '$(web_manual_dir)' below is intended.
-	  && $(RSYNC) -avP $(web_manual_dir)/ $$tmp/$(PACKAGE)/manual \
-	  && ( \
-	    cd $$tmp/$(PACKAGE)/manual \
-	      && new_files=`$(CVSU) --types='?'` \
-	      && new_files=`echo "$$new_files" | sed s/^..//` \
-	      && { test -z "$$new_files" || $(CVS) add -ko $$new_files; } \
-	      && $(CVS) ci -m $(VERSION) \
-	    ) \
-	  && rm -rf $$tmp
-.PHONY: web-manual-update
-
-clean-web-manual:
-	$(AM_V_at)rm -rf $(web_manual_dir)
-.PHONY: clean-web-manual
-clean-local: clean-web-manual
-
-EXTRA_DIST += lib/gendocs.sh lib/gendocs_template
-
-## ------------------------------------------------ ##
-##  Update copyright years of all committed files.  ##
-## ------------------------------------------------ ##
-
-EXTRA_DIST += lib/update-copyright
-
-update_copyright_env = \
-  UPDATE_COPYRIGHT_FORCE=1 \
-  UPDATE_COPYRIGHT_USE_INTERVALS=2
-
-# In addition to the several README files, these as well are
-# not expected to have a copyright notice.
-files_without_copyright = \
-  .autom4te.cfg \
-  .git-log-fix \
-  .gitattributes \
-  .gitignore \
-  INSTALL \
-  COPYING \
-  AUTHORS \
-  THANKS \
-  lib/INSTALL \
-  lib/COPYING
-
-# This script is in the public domain.
-files_without_copyright += lib/mkinstalldirs
-
-# This script has an MIT-style license
-files_without_copyright += lib/install-sh
-
-.PHONY: update-copyright
-update-copyright:
-	$(AM_V_GEN)set -e; \
-	current_year=`date +%Y` && test -n "$$current_year" \
-	  || { echo "$@: cannot get current year" >&2; exit 1; }; \
-	sed -i "/^RELEASE_YEAR=/s/=.*$$/=$$current_year/" \
-	  bootstrap.sh configure.ac; \
-	excluded_re=`( \
-	  for url in $(FETCHFILES); do echo "$$url"; done \
-	    | sed -e 's!^.*/!!' -e 's!^.*=!!' -e 's!^!lib/!' \
-	  && for f in $(files_without_copyright); do echo $$f; done \
-	) | sed -e '$$!s,$$,|,' | tr -d '\012\015'`; \
-	$(GIT) ls-files \
-	  | grep -Ev '(^|/)README$$' \
-	  | grep -Ev "^($$excluded_re)$$" \
-	  | $(update_copyright_env) xargs $(srcdir)/lib/$@
diff --git a/lib/gnupload b/lib/gnupload
index 186d2add3..f6b999b73 100755
--- a/lib/gnupload
+++ b/lib/gnupload
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Sign files and upload them.
 
-scriptversion=2012-06-11.00; # UTC
+scriptversion=2012-12-11.16; # UTC
 
 # Copyright (C) 2004-2012 Free Software Foundation, Inc.
 #
@@ -242,6 +242,8 @@ fi
 
 # Make sure passphrase is not exported in the environment.
 unset passphrase
+unset passphrase_fd_0
+GNUPGHOME=${GNUPGHOME:-$HOME/.gnupg}
 
 # Reset PATH to be sure that echo is a built-in.  We will later use
 # 'echo $passphrase' to output the passphrase, so it is important that
@@ -249,12 +251,13 @@ unset passphrase
 # listings with their arguments...).
 # Remember this script runs with 'set -e', so if echo is not built-in
 # it will exit now.
-if $dry_run; then :; else
+if $dry_run || grep -q "^use-agent" $GNUPGHOME/gpg.conf; then :; else
   PATH=/empty echo -n "Enter GPG passphrase: "
   stty -echo
   read -r passphrase
   stty echo
   echo
+  passphrase_fd_0="--passphrase-fd 0"
 fi
 
 if test $# -ne 0; then
@@ -262,7 +265,7 @@ if test $# -ne 0; then
   do
     echo "Signing $file ..."
     rm -f $file.sig
-    echo "$passphrase" | $dbg $GPG --passphrase-fd 0 -ba -o $file.sig $file
+    echo "$passphrase" | $dbg $GPG $passphrase_fd_0 -ba -o $file.sig $file
   done
 fi
 
@@ -320,12 +323,12 @@ upload ()
   case $dest in
     alpha.gnu.org:*)
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg ncftpput ftp-upload.gnu.org /incoming/alpha $files $base.directive.asc
       ;;
     ftp.gnu.org:*)
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg ncftpput ftp-upload.gnu.org /incoming/ftp $files $base.directive.asc
       ;;
     savannah.gnu.org:*)
@@ -344,7 +347,7 @@ upload ()
       destdir_p1=`echo "$destdir" | sed 's,^[^/]*/,,'`
       destdir_topdir=`echo "$destdir" | sed 's,/.*,,'`
       mkdirective "$destdir_p1" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       for f in $files $base.directive.asc
       do
         echo put $f
@@ -353,7 +356,7 @@ upload ()
     /*)
       dest_host=`echo "$dest" | sed 's,:.*,,'`
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg cp $files $base.directive.asc $dest_host
       ;;
     *)
diff --git a/maint.mk b/maint.mk
new file mode 100644
index 000000000..236ebc687
--- /dev/null
+++ b/maint.mk
@@ -0,0 +1,467 @@
+# Maintainer makefile rules for Automake.
+#
+# Copyright (C) 1995-2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Avoid CDPATH issues.
+unexport CDPATH
+
+# --------------------------------------------------------- #
+#  Automatic generation of the ChangeLog from git history.  #
+# --------------------------------------------------------- #
+
+gitlog_to_changelog_command = $(PERL) $(srcdir)/lib/gitlog-to-changelog
+gitlog_to_changelog_fixes = $(srcdir)/.git-log-fix
+gitlog_to_changelog_options = --amend=$(gitlog_to_changelog_fixes) \
+                              --since='2011-12-28 00:00:00' \
+                              --no-cluster --format '%s%n%n%b'
+
+EXTRA_DIST += lib/gitlog-to-changelog
+EXTRA_DIST += $(gitlog_to_changelog_fixes)
+
+# When executed from a git checkout, generate the ChangeLog from the git
+# history.  When executed from an extracted distribution tarball, just
+# copy the distributed ChangeLog in the build directory (and if this
+# fails, or if no distributed ChangeLog file is present, complain and
+# give an error).
+#
+# The ChangeLog should be regenerated unconditionally when working from
+# checked-out sources; otherwise, if we're working from a distribution
+# tarball, we expect the ChangeLog to be distributed, so check that it
+# is indeed present in the source directory.
+ChangeLog:
+	$(AM_V_GEN)set -e; set -u; \
+	if test -d $(srcdir)/.git; then \
+	  rm -f $@-t \
+	    && $(gitlog_to_changelog_command) \
+	       $(gitlog_to_changelog_options) >$@-t \
+	    && chmod a-w $@-t \
+	    && mv -f $@-t $@ \
+	    || exit 1; \
+	elif test ! -f $(srcdir)/$@; then \
+	  echo "Source tree is not a git checkout, and no pre-existent" \
+	       "$@ file has been found there" >&2; \
+	  exit 1; \
+	fi
+.PHONY: ChangeLog
+
+
+# --------------------------- #
+#  Perl coverage statistics.  #
+# --------------------------- #
+
+PERL_COVERAGE_DB = $(abs_top_builddir)/cover_db
+PERL_COVERAGE_FLAGS = -MDevel::Cover=-db,$(PERL_COVERAGE_DB),-silent,on,-summary,off
+PERL_COVER = cover
+
+check-coverage-run recheck-coverage-run: %-coverage-run: all
+	$(mkinstalldirs) $(PERL_COVERAGE_DB)
+	PERL5OPT="$$PERL5OPT $(PERL_COVERAGE_FLAGS)"; export PERL5OPT; \
+	WANT_NO_THREADS=yes; export WANT_NO_THREADS; unset AUTOMAKE_JOBS; \
+	$(MAKE) $*
+
+check-coverage-report:
+	@if test ! -d "$(PERL_COVERAGE_DB)"; then \
+	  echo "No coverage database found in '$(PERL_COVERAGE_DB)'." >&2; \
+	  echo "Please run \"make check-coverage\" first" >&2; \
+	  exit 1; \
+	fi
+	$(PERL_COVER) $(PERL_COVER_FLAGS) "$(PERL_COVERAGE_DB)"
+
+# We don't use direct dependencies here because we'd like to be able
+# to invoke the report even after interrupted check-coverage.
+check-coverage: check-coverage-run
+	$(MAKE) check-coverage-report
+
+recheck-coverage: recheck-coverage-run
+	$(MAKE) check-coverage-report
+
+clean-coverage:
+	rm -rf "$(PERL_COVERAGE_DB)"
+clean-local: clean-coverage
+
+.PHONY: check-coverage recheck-coverage check-coverage-run \
+	recheck-coverage-run check-coverage-report clean-coverage
+
+
+# ---------------------------------------------------- #
+#  Tagging and/or uploading stable and beta releases.  #
+# ---------------------------------------------------- #
+
+GIT = git
+
+EXTRA_DIST += lib/gnupload
+
+base_version_rx = ^[1-9][0-9]*\.[0-9][0-9]*
+stable_major_version_rx = $(base_version_rx)$$
+stable_minor_version_rx = $(base_version_rx)\.[0-9][0-9]*$$
+beta_version_rx = $(base_version_rx)(\.[0-9][0-9]*)?[bdfhjlnprtvxz]$$
+match_version = echo "$(VERSION)" | $(EGREP) >/dev/null
+
+# Check that we don't have uncommitted or unstaged changes.
+# TODO: Maybe the git suite already offers a shortcut to verify if the
+# TODO: working directory is "clean" or not?  If yes, use that instead
+# TODO: of duplicating the logic here.
+git_must_have_clean_workdir = \
+  $(GIT) rev-parse --verify HEAD >/dev/null \
+    && $(GIT) update-index -q --refresh \
+    && $(GIT) diff-files --quiet \
+    && $(GIT) diff-index --quiet --cached HEAD \
+    || { echo "$@: you have uncommitted or unstaged changes" >&2; exit 1; }
+
+determine_release_type = \
+  if $(match_version) '$(stable_major_version_rx)'; then \
+    release_type='Major release'; \
+    announcement_type='major release'; \
+    dest=ftp; \
+  elif $(match_version) '$(stable_minor_version_rx)'; then \
+    release_type='Minor release'; \
+    announcement_type='maintenance release'; \
+    dest=ftp; \
+  elif $(match_version) '$(beta_version_rx)'; then \
+    release_type='Beta release'; \
+    announcement_type='test release'; \
+    dest=alpha; \
+  else \
+    echo "$@: invalid version '$(VERSION)' for a release" >&2; \
+    exit 1; \
+  fi
+
+# Help the debugging of $(determine_release_type) and related code.
+print-release-type:
+	@$(determine_release_type); \
+	 echo "$$release_type $(VERSION);" \
+	      "it will be announced as a $$announcement_type"
+
+git-tag-release: maintainer-check
+	@set -e -u; \
+	case '$(AM_TAG_DRYRUN)' in \
+	  ""|[nN]|[nN]o|NO) run="";; \
+	  *) run="echo Running:";; \
+	esac; \
+	$(determine_release_type); \
+	$(git_must_have_clean_workdir); \
+	$$run $(GIT) tag -s "v$(VERSION)" -m "$$release_type $(VERSION)"
+
+git-upload-release:
+	@# Check this a version we can cut a release release from the
+	@# current repository: we must have a beta version, and the
+	@# repository must be clean.
+	@$(determine_release_type)
+	@$(git_must_have_clean_workdir)
+	@# Check that we are releasing from a valid tag.
+	tag=`$(GIT) describe` \
+	  && case $$tag in "v$(VERSION)") true;; *) false;; esac \
+	  || { echo "$@: you can only create a release from a tagged" \
+	            "version" >&2; \
+	       exit 1; }
+	@# Build the distribution tarball(s).
+	$(MAKE) dist
+	@# Upload it to the correct FTP repository.
+	@$(determine_release_type) \
+	  && dest=$$dest.gnu.org:automake \
+	  && echo "Will upload to $$dest: $(DIST_ARCHIVES)" \
+	  && $(srcdir)/lib/gnupload $(GNUPLOADFLAGS) --to $$dest \
+	                            $(DIST_ARCHIVES)
+
+.PHONY: print-release-type git-upload-release git-tag-release
+
+
+# ------------------------------------------------------------------ #
+#  Explore differences of autogenerated files in different commits.  #
+# ------------------------------------------------------------------ #
+
+# Visually comparing differences between the Makefile.in files in
+# automake's own build system as generated in two different branches
+# might help to catch bugs and blunders.  This has already happened a
+# few times in the past, when we used to version-control Makefile.in.
+autodiffs:
+	@set -u; \
+	 NEW_COMMIT=$${NEW_COMMIT-"HEAD"}; \
+	 OLD_COMMIT=$${OLD_COMMIT-"HEAD~1"}; \
+	 am_gitdir='$(abs_top_srcdir)/.git'; \
+	 get_autofiles_from_rev () \
+	 { \
+	     rev=$$1 dir=$$2 \
+	       && echo "$@: will get files from revision $$rev" \
+	       && $(GIT) clone -q --depth 1 "$$am_gitdir" tmp \
+	       && cd tmp \
+	       && $(GIT) checkout -q "$$rev" \
+	       && echo "$@: bootstrapping $$rev" \
+	       && $(SHELL) ./bootstrap.sh \
+	       && echo "$@: copying files from $$rev" \
+	       && makefile_ins=`find . -name Makefile.in` \
+	       && (tar cf - configure aclocal.m4 $$makefile_ins) | \
+	          (cd .. && cd "$$dir" && tar xf -) \
+	       && cd .. \
+	       && rm -rf tmp; \
+	 }; \
+	 outdir=$@.dir \
+	   && : Before proceeding, ensure the specified revisions truly exist. \
+	   && $(GIT) --git-dir="$$am_gitdir" describe $$OLD_COMMIT >/dev/null \
+	   && $(GIT) --git-dir="$$am_gitdir" describe $$NEW_COMMIT >/dev/null \
+	   && rm -rf $$outdir \
+	   && mkdir $$outdir \
+	   && cd $$outdir \
+	   && mkdir new old \
+	   && get_autofiles_from_rev $$OLD_COMMIT old \
+	   && get_autofiles_from_rev $$NEW_COMMIT new \
+	   && exit 0
+
+# With lots of eye candy; we like our developers pampered and spoiled :-)
+compare-autodiffs: autodiffs
+	@set -u; \
+	: $${COLORDIFF=colordiff} $${DIFF=diff}; \
+	dir=autodiffs.dir; \
+	if test ! -d "$$dir"; then \
+	  echo "$@: $$dir: Not a directory" >&2; \
+	  exit 1; \
+	fi; \
+	mydiff=false mypager=false; \
+	if test -t 1; then \
+	  if ($$COLORDIFF -r . .) </dev/null >/dev/null 2>&1; then \
+	    mydiff=$$COLORDIFF; \
+	    mypager="less -R"; \
+	  else \
+	    mypager=less; \
+	  fi; \
+	else \
+	  mypager=cat; \
+	fi; \
+	if test "$$mydiff" = false; then \
+	  if ($$DIFF -r -u . .); then \
+	    mydiff=$$DIFF; \
+	  else \
+	    echo "$@: no good-enough diff program specified" >&2; \
+	    exit 1; \
+	  fi; \
+	fi; \
+	st=0; $$mydiff -r -u $$dir/old $$dir/new | $$mypager || st=$$?; \
+	rm -rf $$dir; \
+	exit $$st
+.PHONY: autodiffs compare-autodiffs
+
+# ---------------------------------------------- #
+#  Help writing the announcement for a release.  #
+# ---------------------------------------------- #
+
+PACKAGE_MAILINGLIST = automake@gnu.org
+
+announcement: NEWS
+	$(AM_V_GEN): \
+	  && rm -f $@ $@-t \
+	  && $(determine_release_type) \
+	  && ftp_base="ftp://$$dest.gnu.org/gnu/$(PACKAGE)" \
+	  && X () { printf '%s\n' "$$*" >> $@-t; } \
+	  && X "We are pleased to announce the $(PACKAGE_NAME) $(VERSION)" \
+	       "$$announcement_type." \
+	  && X \
+	  && X "**TODO** Brief description of the release here." \
+	  && X \
+	  && X "**TODO** This description can span multiple paragraphs." \
+	  && X \
+	  && X "See below for the detailed list of changes since the" \
+	  && X "previous version, as summarized by the NEWS file." \
+	  && X \
+	  && X "Download here:" \
+	  && X \
+	  && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.gz" \
+	  && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.xz" \
+	  && X \
+	  && X "Please report bugs and problems to" \
+	       "<$(PACKAGE_BUGREPORT)>," \
+	  && X "and send general comments and feedback to" \
+	       "<$(PACKAGE_MAILINGLIST)>." \
+	  && X \
+	  && X "Thanks to everyone who has reported problems, contributed" \
+	  && X "patches, and helped testing Automake!" \
+	  && X \
+	  && X "-*-*-*-" \
+	  && X \
+	  && sed -n -e '/^~~~/q' -e p $(srcdir)/NEWS >> $@-t \
+	  && mv -f $@-t $@
+.PHONY: announcement
+CLEANFILES += announcement
+
+# --------------------------------------------------------------------- #
+#  Synchronize third-party files that are committed in our repository.  #
+# --------------------------------------------------------------------- #
+
+# Program to use to fetch files.
+WGET = wget
+
+# Some repositories we sync files from.
+SV_CVS    = 'http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~/'
+SV_GIT_CF = 'http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;hb=HEAD;f='
+SV_GIT_AC = 'http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=blob_plain;hb=HEAD;f='
+SV_GIT_GL = 'http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;hb=HEAD;f='
+
+# Files that we fetch and which we compare against.
+# Note that the 'lib/COPYING' file must still be synced by hand.
+FETCHFILES = \
+  $(SV_GIT_CF)config.guess \
+  $(SV_GIT_CF)config.sub \
+  $(SV_CVS)texinfo/texinfo/doc/texinfo.tex \
+  $(SV_CVS)texinfo/texinfo/util/gendocs.sh \
+  $(SV_CVS)texinfo/texinfo/util/gendocs_template \
+  $(SV_GIT_GL)build-aux/gitlog-to-changelog \
+  $(SV_GIT_GL)build-aux/gnupload \
+  $(SV_GIT_GL)build-aux/update-copyright \
+  $(SV_GIT_GL)doc/INSTALL
+
+# Fetch the latest versions of few scripts and files we care about.
+# A retrieval failure or a copying failure usually mean serious problems,
+# so we'll just bail out if 'wget' or 'cp' fail.
+fetch:
+	$(AM_V_at)rm -rf Fetchdir
+	$(AM_V_at)mkdir Fetchdir
+	$(AM_V_GEN)set -e; \
+	if $(AM_V_P); then wget_opts=; else wget_opts=-nv; fi; \
+	for url in $(FETCHFILES); do \
+	   file=`printf '%s\n' "$$url" | sed 's|^.*/||; s|^.*=||'`; \
+	   $(WGET) $$wget_opts "$$url" -O Fetchdir/$$file || exit 1; \
+	   if cmp Fetchdir/$$file $(srcdir)/lib/$$file >/dev/null; then \
+	     : Nothing to do; \
+	   else \
+	     echo "$@: updating file $$file"; \
+	     cp Fetchdir/$$file $(srcdir)/lib/$$file || exit 1; \
+	   fi; \
+	done
+	$(AM_V_at)rm -rf Fetchdir
+.PHONY: fetch
+
+# ---------------------------------------------------------------------- #
+#  Generate and upload manuals in several formats, for the GNU website.  #
+# ---------------------------------------------------------------------- #
+
+web_manual_dir = doc/web-manual
+
+RSYNC = rsync
+CVS = cvs
+CVSU = cvsu
+CVS_USER = $${USER}
+WEBCVS_ROOT = cvs.savannah.gnu.org:/web
+CVS_RSH = ssh
+export CVS_RSH
+
+.PHONY: web-manual web-manual-update
+web-manual web-manual-update: t = $@.dir
+
+# Build manual in several formats.  Note to the recipe:
+# 1. The symlinking of automake.texi into the temporary directory is
+#    required to pacify extra checks from gendocs.sh.
+# 2. The redirection to /dev/null before the invocation of gendocs.sh
+#    is done to better respect silent rules.
+web-manual:
+	$(AM_V_at)rm -rf $(web_manual_dir) $t
+	$(AM_V_at)mkdir $t
+	$(AM_V_at)$(LN_S) '$(abs_srcdir)/doc/$(PACKAGE).texi' '$t/'
+	$(AM_V_GEN)cd $t \
+	  && GENDOCS_TEMPLATE_DIR='$(abs_srcdir)/lib' \
+	  && export GENDOCS_TEMPLATE_DIR \
+	  && if $(AM_V_P); then :; else exec >/dev/null 2>&1; fi \
+	  && $(SHELL) '$(abs_srcdir)/lib/gendocs.sh' \
+	     -I '$(abs_srcdir)/doc' --email $(PACKAGE_BUGREPORT) \
+	     $(PACKAGE) '$(PACKAGE_NAME)'
+	$(AM_V_at)mkdir $(web_manual_dir)
+	$(AM_V_at)mv -f $t/manual/* $(web_manual_dir)
+	$(AM_V_at)rm -rf $t
+	@! $(AM_V_P) || ls -l $(web_manual_dir)
+
+# Upload manual to www.gnu.org, using CVS (sigh!)
+web-manual-update:
+	$(AM_V_at)$(determine_release_type); \
+	case $$release_type in \
+	  [Mm]ajor\ release|[Mm]inor\ release);; \
+	  *) echo "Cannot upload manuals from a \"$$release_type\"" >&2; \
+	     exit 1;; \
+	esac
+	$(AM_V_at)test -f $(web_manual_dir)/$(PACKAGE).html || { \
+	  echo 'You have to run "$(MAKE) web-manuals" before' \
+	       'invoking "$(MAKE) $@"' >&2; \
+	  exit 1; \
+	}
+	$(AM_V_at)rm -rf $t
+	$(AM_V_at)mkdir $t
+	$(AM_V_at)cd $t \
+	  && $(CVS) -z3 -d :ext:$(CVS_USER)@$(WEBCVS_ROOT)/$(PACKAGE) \
+	            co $(PACKAGE)
+	@# According to the rsync manpage, "a trailing slash on the
+	@# source [...] avoids creating an additional directory
+	@# level at the destination".  So the trailing '/' after
+	@# '$(web_manual_dir)' below is intended.
+	$(AM_V_at)$(RSYNC) -avP $(web_manual_dir)/ $t/$(PACKAGE)/manual
+	$(AM_V_GEN): \
+	  && cd $t/$(PACKAGE)/manual \
+	  && new_files=`$(CVSU) --types='?'` \
+	  && new_files=`echo "$$new_files" | sed s/^..//` \
+	  && { test -z "$$new_files" || $(CVS) add -ko $$new_files; } \
+	  && $(CVS) ci -m $(VERSION)
+	$(AM_V_at)rm -rf $t
+.PHONY: web-manual-update
+
+clean-web-manual:
+	$(AM_V_at)rm -rf $(web_manual_dir)
+.PHONY: clean-web-manual
+clean-local: clean-web-manual
+
+EXTRA_DIST += lib/gendocs.sh lib/gendocs_template
+
+# ------------------------------------------------ #
+#  Update copyright years of all committed files.  #
+# ------------------------------------------------ #
+
+EXTRA_DIST += lib/update-copyright
+
+update_copyright_env = \
+  UPDATE_COPYRIGHT_FORCE=1 \
+  UPDATE_COPYRIGHT_USE_INTERVALS=2
+
+# In addition to the several README files, these as well are
+# not expected to have a copyright notice.
+files_without_copyright = \
+  .autom4te.cfg \
+  .git-log-fix \
+  .gitattributes \
+  .gitignore \
+  INSTALL \
+  COPYING \
+  AUTHORS \
+  THANKS \
+  lib/INSTALL \
+  lib/COPYING
+
+# This script is in the public domain.
+files_without_copyright += lib/mkinstalldirs
+
+# This script has an MIT-style license
+files_without_copyright += lib/install-sh
+
+.PHONY: update-copyright
+update-copyright:
+	$(AM_V_GEN)set -e; \
+	current_year=`date +%Y` && test -n "$$current_year" \
+	  || { echo "$@: cannot get current year" >&2; exit 1; }; \
+	sed -i "/^RELEASE_YEAR=/s/=.*$$/=$$current_year/" \
+	  bootstrap.sh configure.ac; \
+	excluded_re=`( \
+	  for url in $(FETCHFILES); do echo "$$url"; done \
+	    | sed -e 's!^.*/!!' -e 's!^.*=!!' -e 's!^!lib/!' \
+	  && for f in $(files_without_copyright); do echo $$f; done \
+	) | sed -e '$$!s,$$,|,' | tr -d '\012\015'`; \
+	$(GIT) ls-files \
+	  | grep -Ev '(^|/)README$$' \
+	  | grep -Ev "^($$excluded_re)$$" \
+	  | $(update_copyright_env) xargs $(srcdir)/lib/$@