Add Gnulib maintainer modules.

* m4/gnulib-cache.m4: Add `announce-gen', `gendocs', `gitlog-to-changelog',
  `gnupload', `gnu-web-doc-update', and `maintainer-makefile'.

* .gnuploadrc, .x-sc_GPL_version, .x-sc_avoid_if_before_free,
  .x-sc_error_message_period, .x-sc_cast_of_alloca_return_value,
  .x-sc_cast_of_argument_to_free, .x-sc_error_message_uppercase,
  .x-sc_error_message_warn_fatal: New files.

1 files changed, 816 insertions, 0 deletions

diff --git a/maint.mk b/maint.mk
new file mode 100644
index 000000000..34d66e1d1
--- /dev/null
+++ b/maint.mk
@@ -0,0 +1,816 @@
+# -*-Makefile-*-
+# This Makefile fragment tries to be general-purpose enough to be
+# used by many projects via the gnulib maintainer-makefile module.
+
+## Copyright (C) 2001-2009 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 3 of the License, 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/>.
+
+# This is reported not to work with make-3.79.1
+# ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
+ME := maint.mk
+
+# Override this in cfg.mk if you use a non-standard build-aux directory.
+build_aux ?= $(srcdir)/build-aux
+
+# Do not save the original name or timestamp in the .tar.gz file.
+# Use --rsyncable if available.
+gzip_rsyncable := \
+  $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null && echo --rsyncable)
+GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
+
+# cfg.mk must define the gpg_key_ID used by this package.
+GIT = git
+VC = $(GIT)
+VC-tag = git tag -s -m '$(VERSION)' -u '$(gpg_key_ID)'
+
+VC_LIST = $(build_aux)/vc-list-files -C $(srcdir)
+
+VC_LIST_EXCEPT = \
+  $(VC_LIST) | if test -f $(srcdir)/.x-$@; then grep -vEf $(srcdir)/.x-$@; \
+	       else grep -Ev "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi
+
+ifeq ($(origin prev_version_file), undefined)
+  prev_version_file = $(srcdir)/.prev-version
+endif
+
+PREV_VERSION := $(shell cat $(prev_version_file) 2>/dev/null)
+VERSION_REGEXP = $(subst .,\.,$(VERSION))
+PREV_VERSION_REGEXP = $(subst .,\.,$(PREV_VERSION))
+
+ifeq ($(VC),$(GIT))
+this-vc-tag = v$(VERSION)
+this-vc-tag-regexp = v$(VERSION_REGEXP)
+else
+tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
+tag-this-version = $(subst .,_,$(VERSION))
+this-vc-tag = $(tag-package)-$(tag-this-version)
+this-vc-tag-regexp = $(this-vc-tag)
+endif
+my_distdir = $(PACKAGE)-$(VERSION)
+
+# Old releases are stored here.
+release_archive_dir ?= ../release
+
+# Prevent programs like 'sort' from considering distinct strings to be equal.
+# Doing it here saves us from having to set LC_ALL elsewhere in this file.
+export LC_ALL = C
+
+## --------------- ##
+## Sanity checks.  ##
+## --------------- ##
+
+_cfg_mk := $(shell test -f $(srcdir)/cfg.mk && echo '$(srcdir)/cfg.mk')
+
+# Collect the names of rules starting with `sc_'.
+syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \
+			$(srcdir)/$(ME) $(_cfg_mk)))
+.PHONY: $(syntax-check-rules)
+
+local-checks-available = \
+  $(syntax-check-rules)
+.PHONY: $(local-checks-available)
+
+# Arrange to print the name of each syntax-checking rule just before running it.
+$(syntax-check-rules): %: %.m
+$(patsubst %, %.m, $(syntax-check-rules)):
+	@echo $(patsubst sc_%.m, %, $@)
+
+local-check := $(filter-out $(local-checks-to-skip), $(local-checks-available))
+
+syntax-check: $(local-check)
+#	@grep -nE '#  *include <(limits|std(def|arg|bool))\.h>'		\
+#	    $$(find -type f -name '*.[chly]') &&			\
+#	  { echo '$(ME): found conditional include' 1>&2;		\
+#	    exit 1; } || :
+
+#	grep -nE '^#  *include <(string|stdlib)\.h>'			\
+#	    $(srcdir)/{lib,src}/*.[chy] &&				\
+#	  { echo '$(ME): FIXME' 1>&2;					\
+#	    exit 1; } || :
+# FIXME: don't allow `#include .strings\.h' anywhere
+
+# By default, _prohibit_regexp does not ignore case.
+export ignore_case =
+_ignore_case = $$(test -n "$$ignore_case" && echo -i || :)
+
+# There are many rules below that prohibit constructs in this package.
+# If the offending construct can be matched with a grep-E-style regexp,
+# use this macro.  The shell variables "re" and "msg" must be defined.
+define _prohibit_regexp
+  dummy=; : so we do not need a semicolon before each use;		\
+  test "x$$re" != x || { echo '$(ME): re not defined' 1>&2; exit 1; };	\
+  test "x$$msg" != x || { echo '$(ME): msg not defined' 1>&2; exit 1; };\
+  grep $(_ignore_case) -nE "$$re" $$($(VC_LIST_EXCEPT)) &&		\
+    { echo '$(ME): '"$$msg" 1>&2; exit 1; } || :
+endef
+
+sc_avoid_if_before_free:
+	@$(build_aux)/useless-if-before-free				\
+		$(useless_free_options)					\
+	    $$($(VC_LIST_EXCEPT) | grep -v useless-if-before-free) &&	\
+	  { echo '$(ME): found useless "if" before "free" above' 1>&2;	\
+	    exit 1; } || :
+
+sc_cast_of_argument_to_free:
+	@re='\<free *\( *\(' msg='don'\''t cast free argument'		\
+	  $(_prohibit_regexp)
+
+sc_cast_of_x_alloc_return_value:
+	@re='\*\) *x(m|c|re)alloc\>'					\
+	msg='don'\''t cast x*alloc return value'			\
+	  $(_prohibit_regexp)
+
+sc_cast_of_alloca_return_value:
+	@re='\*\) *alloca\>' msg='don'\''t cast alloca return value'	\
+	  $(_prohibit_regexp)
+
+sc_space_tab:
+	@re='[ ]	' msg='found SPACE-TAB sequence; remove the SPACE' \
+	  $(_prohibit_regexp)
+
+# Don't use *scanf or the old ato* functions in `real' code.
+# They provide no error checking mechanism.
+# Instead, use strto* functions.
+sc_prohibit_atoi_atof:
+	@re='\<([fs]?scanf|ato([filq]|ll)) *\('				\
+	msg='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \
+	  $(_prohibit_regexp)
+
+# Use STREQ rather than comparing strcmp == 0, or != 0.
+sc_prohibit_strcmp:
+	@grep -nE '! *str''cmp *\(|\<str''cmp *\([^)]+\) *=='		\
+	    $$($(VC_LIST_EXCEPT))					\
+	  | grep -vE ':# *define STREQ\(' &&				\
+	  { echo '$(ME): use STREQ in place of the above uses of str''cmp' \
+		1>&2; exit 1; } || :
+
+# Pass EXIT_*, not number, to usage, exit, and error (when exiting)
+sc_prohibit_magic_number_exit:
+	@re='\<(usage|exit) ?\([0-9]|\<error ?\([1-9][0-9]*,'		\
+	msg='use EXIT_* values rather than magic number'		\
+	  $(_prohibit_regexp)
+
+# Using EXIT_SUCCESS as the first argument to error is misleading,
+# since when that parameter is 0, error does not exit.  Use `0' instead.
+sc_error_exit_success:
+	@grep -nE 'error \(EXIT_SUCCESS,'				\
+	    $$($(VC_LIST_EXCEPT) | grep -E '\.[chly]$$') &&		\
+	  { echo '$(ME): found error (EXIT_SUCCESS' 1>&2; exit 1; } || :
+
+# `FATAL:' should be fully upper-cased in error messages
+# `WARNING:' should be fully upper-cased, or fully lower-cased
+sc_error_message_warn_fatal:
+	@grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))		\
+	    | grep -E '"Warning|"Fatal|"fatal' &&			\
+	  { echo '$(ME): use FATAL, WARNING or warning'	1>&2;		\
+	    exit 1; } || :
+
+# Error messages should not start with a capital letter
+sc_error_message_uppercase:
+	@grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))		\
+	    | grep -E '"[A-Z]'						\
+	    | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' &&		\
+	  { echo '$(ME): found capitalized error message' 1>&2;		\
+	    exit 1; } || :
+
+# Error messages should not end with a period
+sc_error_message_period:
+	@grep -nEA2 '[^rp]error \(' $$($(VC_LIST_EXCEPT))		\
+	    | grep -E '[^."]\."' &&					\
+	  { echo '$(ME): found error message ending in period' 1>&2;	\
+	    exit 1; } || :
+
+sc_file_system:
+	@re=file''system ignore_case=1					\
+	msg='found use of "file''system"; spell it "file system"'	\
+	  $(_prohibit_regexp)
+
+# Don't use cpp tests of this symbol.  All code assumes config.h is included.
+sc_prohibit_have_config_h:
+	@grep -n '^# *if.*HAVE''_CONFIG_H' $$($(VC_LIST_EXCEPT)) &&	\
+	  { echo '$(ME): found use of HAVE''_CONFIG_H; remove'		\
+		1>&2; exit 1; } || :
+
+# Nearly all .c files must include <config.h>.  However, we also permit this
+# via inclusion of a package-specific header, if cfg.mk specified one.
+# config_h_header must be suitable for grep -E.
+config_h_header ?= <config\.h>
+sc_require_config_h:
+	@if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then	\
+	  grep -EL '^# *include $(config_h_header)'			\
+		$$($(VC_LIST_EXCEPT) | grep '\.c$$')			\
+	      | grep . &&						\
+	  { echo '$(ME): the above files do not include <config.h>'	\
+		1>&2; exit 1; } || :;					\
+	else :;								\
+	fi
+
+# You must include <config.h> before including any other header file.
+# This can possibly be via a package-specific header, if given by cfg.mk.
+sc_require_config_h_first:
+	@if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then	\
+	  fail=0;							\
+	  for i in $$($(VC_LIST_EXCEPT) | grep '\.c$$'); do		\
+	    grep '^# *include\>' $$i | sed 1q				\
+		| grep -E '^# *include $(config_h_header)' > /dev/null	\
+	      || { echo $$i; fail=1; };					\
+	  done;								\
+	  test $$fail = 1 &&						\
+	    { echo '$(ME): the above files include some other header'	\
+		'before <config.h>' 1>&2; exit 1; } || :;		\
+	else :;								\
+	fi
+
+sc_prohibit_HAVE_MBRTOWC:
+	@re='\bHAVE_MBRTOWC\b' msg="do not use $$re; it is always defined" \
+	  $(_prohibit_regexp)
+
+# To use this "command" macro, you must first define two shell variables:
+# h: the header, enclosed in <> or ""
+# re: a regular expression that matches IFF something provided by $h is used.
+define _header_without_use
+  dummy=; : so we do not need a semicolon before each use;		\
+  h_esc=`echo "$$h"|sed 's/\./\\\\./g'`;				\
+  if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then		\
+    files=$$(grep -l '^# *include '"$$h_esc"				\
+	     $$($(VC_LIST_EXCEPT) | grep '\.c$$')) &&			\
+    grep -LE "$$re" $$files | grep . &&					\
+      { echo "$(ME): the above files include $$h but don't use it"	\
+	1>&2; exit 1; } || :;						\
+  else :;								\
+  fi
+endef
+
+# Prohibit the inclusion of assert.h without an actual use of assert.
+sc_prohibit_assert_without_use:
+	@h='<assert.h>' re='\<assert *\(' $(_header_without_use)
+
+# Prohibit the inclusion of close-stream.h without an actual use.
+sc_prohibit_close_stream_without_use:
+	@h='"close-stream.h"' re='\<close_stream *\(' $(_header_without_use)
+
+# Prohibit the inclusion of getopt.h without an actual use.
+sc_prohibit_getopt_without_use:
+	@h='<getopt.h>' re='\<getopt(_long)? *\(' $(_header_without_use)
+
+# Don't include quotearg.h unless you use one of its functions.
+sc_prohibit_quotearg_without_use:
+	@h='"quotearg.h"' re='\<quotearg(_[^ ]+)? *\(' $(_header_without_use)
+
+# Don't include quote.h unless you use one of its functions.
+sc_prohibit_quote_without_use:
+	@h='"quote.h"' re='\<quote(_n)? *\(' $(_header_without_use)
+
+# Don't include this header unless you use one of its functions.
+sc_prohibit_long_options_without_use:
+	@h='"long-options.h"' re='\<parse_long_options *\(' \
+	  $(_header_without_use)
+
+# Don't include this header unless you use one of its functions.
+sc_prohibit_inttostr_without_use:
+	@h='"inttostr.h"' re='\<(off|[iu]max|uint)tostr *\(' \
+	  $(_header_without_use)
+
+# Don't include this header unless you use one of its functions.
+sc_prohibit_error_without_use:
+	@h='"error.h"' \
+	re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
+	  $(_header_without_use)
+
+# Don't include xalloc.h unless you use one of its functions.
+# Consider these symbols:
+# perl -lne '/^# *define (\w+)\(/ and print $1' lib/xalloc.h|grep -v '^__';
+# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) \(/ and print $1' lib/xalloc.h
+# Divide into two sets on case, and filter each through this:
+# | sort | perl -MRegexp::Assemble -le \
+#  'print Regexp::Assemble->new(file => "/dev/stdin")->as_string'|sed 's/\?://g'
+# Note this was produced by the above:
+# _xa1 = x(alloc_(oversized|die)|([cz]|2?re)alloc|m(alloc|emdup)|strdup)
+# But we can do better:
+_xa1 = x(alloc_(oversized|die)|([cmz]|2?re)alloc|(mem|str)dup)
+_xa2 = X([CZ]|N?M)ALLOC
+sc_prohibit_xalloc_without_use:
+	@h='"xalloc.h"' \
+	re='\<($(_xa1)|$(_xa2)) *\('\
+	  $(_header_without_use)
+
+sc_prohibit_safe_read_without_use:
+	@h='"safe-read.h"' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
+	  $(_header_without_use)
+
+sc_prohibit_argmatch_without_use:
+	@h='"argmatch.h"' \
+	re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<argmatch(_exit_fn|_(in)?valid) *\()' \
+	  $(_header_without_use)
+
+sc_prohibit_canonicalize_without_use:
+	@h='"canonicalize.h"' \
+	re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode)' \
+	  $(_header_without_use)
+
+sc_prohibit_root_dev_ino_without_use:
+	@h='"root-dev-ino.h"' \
+	re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
+	  $(_header_without_use)
+
+sc_prohibit_openat_without_use:
+	@h='"openat.h"' \
+	re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \
+	  $(_header_without_use)
+
+# Prohibit the inclusion of c-ctype.h without an actual use.
+ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
+|isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
+sc_prohibit_c_ctype_without_use:
+	@h='[<"]c-ctype.h[">]' re='\<c_($(ctype_re)) *\(' $(_header_without_use)
+
+_empty =
+_sp = $(_empty) $(_empty)
+# The following list was generated by running:
+# man signal.h|col -b|perl -ne '/bsd_signal.*;/.../sigwaitinfo.*;/ and print' \
+#   | perl -lne '/^\s+(?:int|void).*?(\w+).*/ and print $1' | fmt
+_sig_functions = \
+  bsd_signal kill killpg pthread_kill pthread_sigmask raise sigaction \
+  sigaddset sigaltstack sigdelset sigemptyset sigfillset sighold sigignore \
+  siginterrupt sigismember signal sigpause sigpending sigprocmask sigqueue \
+  sigrelse sigset sigsuspend sigtimedwait sigwait sigwaitinfo
+_sig_function_re = $(subst $(_sp),|,$(strip $(_sig_functions)))
+# The following were extracted from "man signal.h" manually.
+_sig_types_and_consts =							\
+  MINSIGSTKSZ SA_NOCLDSTOP SA_NOCLDWAIT SA_NODEFER SA_ONSTACK		\
+  SA_RESETHAND SA_RESTART SA_SIGINFO SIGEV_NONE SIGEV_SIGNAL		\
+  SIGEV_THREAD SIGSTKSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK SS_DISABLE	\
+  SS_ONSTACK mcontext_t pid_t sig_atomic_t sigevent siginfo_t sigset_t	\
+  sigstack sigval stack_t ucontext_t
+# generated via this:
+# perl -lne '/^#ifdef (SIG\w+)/ and print $1' lib/sig2str.c|sort -u|fmt -70
+_sig_names =								\
+  SIGABRT SIGALRM SIGALRM1 SIGBUS SIGCANCEL SIGCHLD SIGCLD SIGCONT	\
+  SIGDANGER SIGDIL SIGEMT SIGFPE SIGFREEZE SIGGRANT SIGHUP SIGILL	\
+  SIGINFO SIGINT SIGIO SIGIOT SIGKAP SIGKILL SIGKILLTHR SIGLOST SIGLWP	\
+  SIGMIGRATE SIGMSG SIGPHONE SIGPIPE SIGPOLL SIGPRE SIGPROF SIGPWR	\
+  SIGQUIT SIGRETRACT SIGSAK SIGSEGV SIGSOUND SIGSTKFLT SIGSTOP SIGSYS	\
+  SIGTERM SIGTHAW SIGTRAP SIGTSTP SIGTTIN SIGTTOU SIGURG SIGUSR1	\
+  SIGUSR2 SIGVIRT SIGVTALRM SIGWAITING SIGWINCH SIGWIND SIGWINDOW	\
+  SIGXCPU SIGXFSZ
+_sig_syms_re = $(subst $(_sp),|,$(strip $(_sig_names) $(_sig_types_and_consts)))
+
+# Prohibit the inclusion of signal.h without an actual use.
+sc_prohibit_signal_without_use:
+	@h='<signal.h>'							\
+	re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>'		\
+	  $(_header_without_use)
+
+sc_obsolete_symbols:
+	@re='\<(HAVE''_FCNTL_H|O''_NDELAY)\>'				\
+	msg='do not use HAVE''_FCNTL_H or O'_NDELAY			\
+	  $(_prohibit_regexp)
+
+# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
+
+# Each nonempty ChangeLog line must start with a year number, or a TAB.
+sc_changelog:
+	@if $(VC_LIST_EXCEPT) | grep -l '^ChangeLog$$' >/dev/null; then	\
+	  grep -n '^[^12	]'					\
+	    $$($(VC_LIST_EXCEPT) | grep '^ChangeLog$$') &&		\
+	  { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2;	\
+	    exit 1; } || :;						\
+	fi
+
+# Ensure that each .c file containing a "main" function also
+# calls set_program_name.
+sc_program_name:
+	@if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then	\
+	  files=$$(grep -l '^main *(' $$($(VC_LIST_EXCEPT) | grep '\.c$$')); \
+	  grep -LE 'set_program_name *\(m?argv\[0\]\);' $$files		\
+	      | grep . &&						\
+	  { echo '$(ME): the above files do not call set_program_name'	\
+		1>&2; exit 1; } || :;					\
+	else :;								\
+	fi
+
+# Require that the final line of each test-lib.sh-using test be this one:
+# Exit $fail
+# Note: this test requires GNU grep's --label= option.
+Exit_witness_file ?= tests/test-lib.sh
+Exit_base := $(notdir $(Exit_witness_file))
+sc_require_test_exit_idiom:
+	@if test -f $(srcdir)/$(Exit_witness_file); then		\
+	  die=0;							\
+	  for i in $$(grep -l -F 'srcdir/$(Exit_base)'			\
+		$$($(VC_LIST) tests)); do				\
+	    tail -n1 $$i | grep '^Exit .' > /dev/null			\
+	      && : || { die=1; echo $$i; }				\
+	  done;								\
+	  test $$die = 1 &&						\
+	    { echo 1>&2 '$(ME): the final line in each of the above is not:'; \
+	      echo 1>&2 'Exit something';				\
+	      exit 1; } || :;						\
+	fi
+
+sc_the_the:
+	@re='\<the ''the\>'						\
+	ignore_case=1 msg='found use of "the ''the";'			\
+	  $(_prohibit_regexp)
+
+sc_trailing_blank:
+	@re='[	 ]$$'							\
+	msg='found trailing blank(s)'					\
+	  $(_prohibit_regexp)
+
+# Match lines like the following, but where there is only one space
+# between the options and the description:
+#   -D, --all-repeated[=delimit-method]  print all duplicate lines\n
+longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)?
+sc_two_space_separator_in_usage:
+	@grep -nE '^   *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$'		\
+	    $$($(VC_LIST_EXCEPT)) &&					\
+	  { echo "$(ME): help2man requires at least two spaces between"; \
+	    echo "$(ME): an option and its description";		\
+		1>&2; exit 1; } || :
+
+# Look for diagnostics that aren't marked for translation.
+# This won't find any for which error's format string is on a separate line.
+sc_unmarked_diagnostics:
+	@grep -nE							\
+	    '\<error \([^"]*"[^"]*[a-z]{3}' $$($(VC_LIST_EXCEPT))	\
+	  | grep -v '_''(' &&						\
+	  { echo '$(ME): found unmarked diagnostic(s)' 1>&2;		\
+	    exit 1; } || :
+
+# Avoid useless parentheses like those in this example:
+# #if defined (SYMBOL) || defined (SYM2)
+sc_useless_cpp_parens:
+	@grep -n '^# *if .*defined *(' $$($(VC_LIST_EXCEPT)) &&		\
+	  { echo '$(ME): found useless parentheses in cpp directive'	\
+		1>&2; exit 1; } || :
+
+# Require the latest GPL.
+sc_GPL_version:
+	@re='either ''version [^3]' msg='GPL vN, N!=3'			\
+	  $(_prohibit_regexp)
+
+cvs_keywords = \
+  Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State
+
+sc_prohibit_cvs_keyword:
+	@re='\$$($(cvs_keywords))\$$'					\
+	    msg='do not use CVS keyword expansion'			\
+	  $(_prohibit_regexp)
+
+# Make sure we don't use st_blocks.  Use ST_NBLOCKS instead.
+# This is a bit of a kludge, since it prevents use of the string
+# even in comments, but for now it does the job with no false positives.
+sc_prohibit_stat_st_blocks:
+	@re='[.>]st_blocks' msg='do not use st_blocks; use ST_NBLOCKS'	\
+	  $(_prohibit_regexp)
+
+# Make sure we don't define any S_IS* macros in src/*.c files.
+# They're already defined via gnulib's sys/stat.h replacement.
+sc_prohibit_S_IS_definition:
+	@re='^ *# *define  *S_IS'					\
+	msg='do not define S_IS* macros; include <sys/stat.h>'		\
+	  $(_prohibit_regexp)
+
+# Each program that uses proper_name_utf8 must link with
+# one of the ICONV libraries.
+sc_proper_name_utf8_requires_ICONV:
+	@progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
+	if test "x$$progs" != x; then					\
+	  fail=0;							\
+	  for p in $$progs; do						\
+	    dir=$$(dirname "$$p");					\
+	    base=$$(basename "$$p" .c);					\
+	    grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null	\
+	      || { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \
+	  done;								\
+	  test $$fail = 1 &&						\
+	    { echo 1>&2 '$(ME): the above do not link with any ICONV library'; \
+	      exit 1; } || :;						\
+	fi
+
+# Warn about "c0nst struct Foo const foo[]",
+# but not about "char const *const foo" or "#define const const".
+sc_redundant_const:
+	@re='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b'		\
+	msg='redundant "const" in declarations'				\
+	  $(_prohibit_regexp)
+
+sc_const_long_option:
+	@grep '^ *static.*struct option ' $$($(VC_LIST_EXCEPT))		\
+	  | grep -Ev 'const struct option|struct option const' && {	\
+	      echo 1>&2 '$(ME): add "const" to the above declarations'; \
+	      exit 1; } || :
+
+NEWS_hash =								\
+  $$(sed -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p'		\
+       $(srcdir)/NEWS							\
+     | grep -v '^Copyright .*Free Software'				\
+     | md5sum -								\
+     | sed 's/ .*//')
+
+# Ensure that we don't accidentally insert an entry into an old NEWS block.
+sc_immutable_NEWS:
+	@if test -f $(srcdir)/NEWS; then				\
+	  test "$(NEWS_hash)" = '$(old_NEWS_hash)' && : ||		\
+	    { echo '$(ME): you have modified old NEWS' 1>&2; exit 1; };	\
+	fi
+
+# Update the hash stored above.  Do this after each release and
+# for any corrections to old entries.
+update-NEWS-hash: NEWS
+	perl -pi -e 's/^(old_NEWS_hash[ \t]+:?=[ \t]+).*/$${1}'"$(NEWS_hash)/" \
+	  $(srcdir)/cfg.mk
+
+# Ensure that we use only the standard $(VAR) notation,
+# not @...@ in Makefile.am, now that we can rely on automake
+# to emit a definition for each substituted variable.
+# We use perl rather than "grep -nE ..." to exempt a single
+# use of an @...@-delimited variable name in src/Makefile.am.
+sc_makefile_check:
+	@perl -ne '/\@[A-Z_0-9]+\@/ && !/^cu_install_program =/'	\
+	  -e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}'	\
+	    $$($(VC_LIST_EXCEPT) | grep -E '(^|/)Makefile\.am$$')	\
+	  && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
+
+news-date-check: NEWS
+	today=`date +%Y-%m-%d`;						\
+	if head $(srcdir)/NEWS | grep '^\*.* $(VERSION_REGEXP) ('$$today')' \
+	    >/dev/null; then						\
+	  :;								\
+	else								\
+	  echo "version or today's date is not in NEWS" 1>&2;		\
+	  exit 1;							\
+	fi
+
+sc_makefile_TAB_only_indentation:
+	@grep -nE '^	[ ]{8}'						\
+	    $$($(VC_LIST_EXCEPT) | grep -E 'akefile|\.mk$$')		\
+	  && { echo '$(ME): found TAB-8-space indentation' 1>&2;	\
+	       exit 1; } || :
+
+sc_m4_quote_check:
+	@grep -nE '(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]'		\
+	    $$($(VC_LIST_EXCEPT) | grep -E '(^configure\.ac|\.m4)$$')	\
+	  && { echo '$(ME): quote the first arg to AC_DEF*' 1>&2;	\
+	       exit 1; } || :
+
+fix_po_file_diag = \
+'you have changed the set of files with translatable diagnostics;\n\
+apply the above patch\n'
+
+# Verify that all source files using _() are listed in po/POTFILES.in.
+po_file = po/POTFILES.in
+sc_po_check:
+	@if test -f $(po_file); then					\
+	  grep -E -v '^(#|$$)' $(po_file)				\
+	    | grep -v '^src/false\.c$$' | sort > $@-1;			\
+	  files=;							\
+	  for file in $$($(VC_LIST_EXCEPT)) lib/*.[ch]; do		\
+	    test -r $$file || continue;					\
+	    case $$file in						\
+	      *.m4|*.mk) continue ;;					\
+	      *.?|*.??) ;;						\
+	      *) continue;;						\
+	    esac;							\
+	    case $$file in						\
+	    *.[ch])							\
+	      base=`expr " $$file" : ' \(.*\)\..'`;			\
+	      { test -f $$base.l || test -f $$base.y; } && continue;;	\
+	    esac;							\
+	    files="$$files $$file";					\
+	  done;								\
+	  grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files		\
+	    | sort -u > $@-2;						\
+	  diff -u -L $(po_file) -L $(po_file) $@-1 $@-2			\
+	    || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; };	\
+	  rm -f $@-1 $@-2;						\
+	fi
+
+# Sometimes it is useful to change the PATH environment variable
+# in Makefiles.  When doing so, it's better not to use the Unix-centric
+# path separator of `:', but rather the automake-provided `$(PATH_SEPARATOR)'.
+msg = '$(ME): Do not use `:'\'' above; use $$(PATH_SEPARATOR) instead'
+sc_makefile_path_separator_check:
+	@grep -nE 'PATH[=].*:'						\
+	    $$($(VC_LIST_EXCEPT) | grep -E 'akefile|\.mk$$')		\
+	  && { echo $(msg) 1>&2; exit 1; } || :
+
+# Check that `make alpha' will not fail at the end of the process.
+writable-files:
+	if test -d $(release_archive_dir); then :; else			\
+	  for file in $(distdir).tar.gz					\
+		      $(release_archive_dir)/$(distdir).tar.gz; do	\
+	    test -e $$file || continue;					\
+	    test -w $$file						\
+	      || { echo ERROR: $$file is not writable; fail=1; };	\
+	  done;								\
+	  test "$$fail" && exit 1 || : ;				\
+	fi
+
+v_etc_file = lib/version-etc.c
+sample-test = tests/sample-test
+texi = doc/$(PACKAGE).texi
+# Make sure that the copyright date in $(v_etc_file) is up to date.
+# Do the same for the $(sample-test) and the main doc/.texi file.
+sc_copyright_check:
+	@if test -f $(v_etc_file); then					\
+	  grep 'enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' $(v_etc_file) \
+	    >/dev/null							\
+	  || { echo 'out of date copyright in $(v_etc_file); update it' 1>&2; \
+	       exit 1; };						\
+	fi
+	@if test -f $(sample-test); then				\
+	  grep '# Copyright (C) '$$(date +%Y)' Free' $(sample-test)	\
+	    >/dev/null							\
+	  || { echo 'out of date copyright in $(sample-test); update it' 1>&2; \
+	       exit 1; };						\
+	fi
+	@if test -f $(texi); then					\
+	  grep 'Copyright @copyright{} .*'$$(date +%Y)' Free' $(texi)	\
+	    >/dev/null							\
+	  || { echo 'out of date copyright in $(texi); update it' 1>&2;	\
+	       exit 1; };						\
+	fi
+
+vc-diff-check:
+	(unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || :
+	if test -s vc-diffs; then				\
+	  cat vc-diffs;						\
+	  echo "Some files are locally modified:" 1>&2;		\
+	  exit 1;						\
+	else							\
+	  rm vc-diffs;						\
+	fi
+
+# Use this to make sure we don't run these programs when building
+# from a virgin tgz file, below.
+null_AM_MAKEFLAGS = \
+  ACLOCAL=false \
+  AUTOCONF=false \
+  AUTOMAKE=false \
+  AUTOHEADER=false \
+  MAKEINFO=false
+
+built_programs = $$(cd src && MAKEFLAGS= $(MAKE) -s built_programs.list)
+
+rel-files = $(DIST_ARCHIVES)
+
+gnulib_dir ?= $(srcdir)/gnulib
+gnulib-version = $$(cd $(gnulib_dir) && git describe)
+bootstrap-tools ?= autoconf,automake,gnulib
+
+announcement: NEWS ChangeLog $(rel-files)
+	@$(build_aux)/announce-gen					\
+	    --release-type=$(RELEASE_TYPE)				\
+	    --package=$(PACKAGE)					\
+	    --prev=$(PREV_VERSION)					\
+	    --curr=$(VERSION)						\
+	    --gpg-key-id=$(gpg_key_ID)					\
+	    --news=NEWS							\
+	    --bootstrap-tools=$(bootstrap-tools)			\
+	    --gnulib-version=$(gnulib-version)				\
+	    --no-print-checksums					\
+	    $(addprefix --url-dir=, $(url_dir_list))
+
+## ---------------- ##
+## Updating files.  ##
+## ---------------- ##
+
+ftp-gnu = ftp://ftp.gnu.org/gnu
+www-gnu = http://www.gnu.org
+
+emit_upload_commands:
+	@echo =====================================
+	@echo =====================================
+	@echo "$(build_aux)/gnupload $(GNUPLOADFLAGS) \\"
+	@echo "    --to $(gnu_rel_host):$(PACKAGE) \\"
+	@echo "  $(rel-files)"
+	@echo '# send the /tmp/announcement e-mail'
+	@echo =====================================
+	@echo =====================================
+
+noteworthy = * Noteworthy changes in release ?.? (????-??-??) [?]
+define emit-commit-log
+  printf '%s\n' 'post-release administrivia' '' \
+    '* NEWS: Add header line for next release.' \
+    '* .prev-version: Record previous version.' \
+    '* cfg.mk (old_NEWS_hash): Auto-update.'
+endef
+
+.PHONY: no-submodule-changes
+no-submodule-changes:
+	if test -d $(srcdir)/.git; then					\
+	  diff=$$(cd $(srcdir) && git submodule -q foreach		\
+		  git diff-index --name-only HEAD)			\
+	    || exit 1;							\
+	  case $$diff in '') ;;						\
+	    *) echo '$(ME): submodule files are locally modified:';	\
+		echo "$$diff"; exit 1;; esac;				\
+	else								\
+	  : ;								\
+	fi
+
+.PHONY: alpha beta stable
+ALL_RECURSIVE_TARGETS += alpha beta stable
+alpha beta stable: $(local-check) writable-files no-submodule-changes
+	test $@ = stable						\
+	  && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$'		\
+	       || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
+	  || :
+	$(MAKE) vc-diff-check
+	$(MAKE) news-date-check
+	$(MAKE) distcheck
+	$(MAKE) dist XZ_OPT=-9ev
+	$(MAKE) -s announcement RELEASE_TYPE=$@ > /tmp/announce-$(my_distdir)
+	if test -d $(release_archive_dir); then			\
+	  ln $(rel-files) $(release_archive_dir);		\
+	  chmod a-w $(rel-files);				\
+	fi
+	$(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
+	echo $(VERSION) > $(prev_version_file)
+	$(MAKE) update-NEWS-hash
+	perl -pi -e '$$. == 3 and print "$(noteworthy)\n\n\n"' NEWS
+	$(emit-commit-log) > .ci-msg
+	$(VC) commit -F .ci-msg -a
+
+.PHONY: web-manual
+web-manual:
+	@test -z "$(manual_title)" \
+	  && { echo define manual_title in cfg.mk 1>&2; exit 1; } || :
+	@cd '$(srcdir)/doc'; \
+	  $(SHELL) ../build-aux/gendocs.sh -o '$(abs_builddir)/doc/manual' \
+	     --email $(PACKAGE_BUGREPORT) $(PACKAGE) \
+	    "$(PACKAGE_NAME) - $(manual_title)"
+	@echo " *** Upload the doc/manual directory to web-cvs."
+
+# Code Coverage
+
+init-coverage:
+	$(MAKE) $(AM_MAKEFLAGS) clean
+	lcov --directory . --zerocounters
+
+COVERAGE_CCOPTS ?= "-g --coverage"
+COVERAGE_OUT ?= doc/coverage
+
+build-coverage:
+	$(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS)
+	$(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS) check
+	mkdir -p $(COVERAGE_OUT)
+	lcov --directory . --output-file $(COVERAGE_OUT)/$(PACKAGE).info \
+		--capture
+
+gen-coverage:
+	genhtml --output-directory $(COVERAGE_OUT) \
+		$(COVERAGE_OUT)/$(PACKAGE).info \
+		--highlight --frames --legend \
+		--title "$(PACKAGE_NAME)"
+
+coverage: init-coverage build-coverage gen-coverage
+
+# Update gettext files.
+PACKAGE ?= $(shell basename $(PWD))
+PO_DOMAIN ?= $(PACKAGE)
+POURL = http://translationproject.org/latest/$(PO_DOMAIN)/
+PODIR ?= po
+refresh-po:
+	rm -f $(PODIR)/*.po && \
+	echo "$(ME): getting translations into po (please ignore the robots.txt ERROR 404)..." && \
+	wget --no-verbose --directory-prefix $(PODIR) --no-directories --recursive --level 1 --accept .po --accept .po.1 $(POURL) && \
+	echo 'en@boldquot' > $(PODIR)/LINGUAS && \
+	echo 'en@quot' >> $(PODIR)/LINGUAS && \
+	ls $(PODIR)/*.po | sed 's/\.po//' | sed 's,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS
+
+INDENT_SOURCES ?= $(C_SOURCES)
+.PHONY: indent
+indent:
+	indent $(INDENT_SOURCES)
+
+# If you want to set UPDATE_COPYRIGHT_* environment variables,
+# put the assignments in this variable.
+update-copyright-env ?=
+
+# Run this rule once per year (usually early in January)
+# to update all FSF copyright year lists in your project.
+# If you have an additional project-specific rule,
+# add it in cfg.mk along with a line 'update-copyright: prereq'.
+# By default, exclude all variants of COPYING; you can also
+# add exemptions (such as ChangeLog..* for rotated change logs)
+# in the file .x-update-copyright.
+.PHONY: update-copyright
+update-copyright:
+	grep -l -w Copyright                                             \
+	  $$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
+	  | $(update-copyright-env) xargs $(build_aux)/$@