build: remove all logic unrelated to syntax-check

The standard maint.mk from gnulib provides alot more than just the
'syntax-check' target. This can all be purged to give a more minimal
file.
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

GNUmakefile

@@ -38,48 +38,6 @@ include Makefile
 include $(srcdir)/$(_build-aux)/cfg.mk
 include $(srcdir)/$(_build-aux)/maint.mk
 
-# Ensure that $(VERSION) is up to date for dist-related targets, but not
-# for others: rerunning autoreconf and recompiling everything isn't cheap.
-_have-git-version-gen := \
-  $(shell test -f $(srcdir)/$(_build-aux)/git-version-gen && echo yes)
-ifeq ($(_have-git-version-gen)0,yes$(MAKELEVEL))
-  _is-dist-target ?= $(filter-out %clean, \
-    $(filter maintainer-% dist% alpha beta stable,$(MAKECMDGOALS)))
-  _is-install-target ?= $(filter-out %check, $(filter install%,$(MAKECMDGOALS)))
-  ifneq (,$(_is-dist-target)$(_is-install-target))
-    _curr-ver := $(shell cd $(srcdir)				\
-                   && $(_build-aux)/git-version-gen		\
-                         .tarball-version			\
-                         $(git-version-gen-tag-sed-script))
-    ifneq ($(_curr-ver),$(VERSION))
-      ifeq ($(_curr-ver),UNKNOWN)
-        $(info WARNING: unable to verify if $(VERSION) is the correct version)
-      else
-        ifneq (,$(_is-install-target))
-          # GNU Coding Standards state that 'make install' should not cause
-          # recompilation after 'make all'.  But as long as changing the version
-          # string alters config.h, the cost of having 'make all' always have an
-          # up-to-date version is prohibitive.  So, as a compromise, we merely
-          # warn when installing a version string that is out of date; the user
-          # should run 'autoreconf' (or something like 'make distcheck') to
-          # fix the version, 'make all' to propagate it, then 'make install'.
-          $(info WARNING: version string $(VERSION) is out of date;)
-          $(info run '$(MAKE) _version' to fix it)
-        else
-          $(info INFO: running autoreconf for new version string: $(_curr-ver))
-GNUmakefile: _version
-	touch GNUmakefile
-        endif
-      endif
-    endif
-  endif
-endif
-
-.PHONY: _version
-_version:
-	cd $(srcdir) && rm -rf autom4te.cache .version && $(_autoreconf)
-	$(MAKE) $(AM_MAKEFLAGS) Makefile
-
 else
 
 .DEFAULT_GOAL := abort-due-to-no-makefile

build-aux/cfg.mk

@@ -16,16 +16,6 @@
 # along with this program.  If not, see
 # <http://www.gnu.org/licenses/>.
 
-# Use alpha.gnu.org for alpha and beta releases.
-# Use ftp.gnu.org for major releases.
-gnu_ftp_host-alpha = alpha.gnu.org
-gnu_ftp_host-beta = alpha.gnu.org
-gnu_ftp_host-major = ftp.gnu.org
-gnu_rel_host = $(gnu_ftp_host-$(RELEASE_TYPE))
-
-url_dir_list = \
-  ftp://$(gnu_rel_host)/gnu/coreutils
-
 # We use .gnulib, not gnulib.
 gnulib_dir = $(srcdir)/.gnulib
 

build-aux/maint.mk

@@ -37,26 +37,6 @@ _sp = $(_empty) $(_empty)
 # If S1 == S2, return S1, otherwise the empty string.
 _equal = $(and $(findstring $(1),$(2)),$(findstring $(2),$(1)))
 
-# member-check,VARIABLE,VALID-VALUES
-# ----------------------------------
-# Check that $(VARIABLE) is in the space-separated list of VALID-VALUES, and
-# return it.  Die otherwise.
-member-check =								\
-  $(strip								\
-    $(if $($(1)),							\
-      $(if $(findstring $(_sp),$($(1))),				\
-          $(error invalid $(1): '$($(1))', expected $(2)),		\
-          $(or $(findstring $(_sp)$($(1))$(_sp),$(_sp)$(2)$(_sp)),	\
-            $(error invalid $(1): '$($(1))', expected $(2)))),		\
-      $(error $(1) undefined)))
-
-# 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 \
-    && printf %s --rsyncable)
-GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
-
 GIT = git
 VC = $(GIT)
 
@@ -95,62 +75,10 @@ VC_LIST_EXCEPT = \
 	| $(GREP) -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \
 	$(_prepend_srcdir_prefix)
 
-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
-
-# If RELEASE_TYPE is undefined, but RELEASE is, use its second word.
-# But overwrite VERSION.
-ifdef RELEASE
-  VERSION := $(word 1, $(RELEASE))
-  RELEASE_TYPE ?= $(word 2, $(RELEASE))
-endif
-
-# Validate and return $(RELEASE_TYPE), or die.
-RELEASE_TYPES = alpha beta stable
-release-type = $(call member-check,RELEASE_TYPE,$(RELEASE_TYPES))
-
-# Override gnu_rel_host and url_dir_list in cfg.mk if these are not right.
-# Use alpha.gnu.org for alpha and beta releases.
-# Use ftp.gnu.org for stable releases.
-gnu_ftp_host-alpha = alpha.gnu.org
-gnu_ftp_host-beta = alpha.gnu.org
-gnu_ftp_host-stable = ftp.gnu.org
-gnu_rel_host ?= $(gnu_ftp_host-$(release-type))
-
-url_dir_list ?= $(if $(call _equal,$(gnu_rel_host),ftp.gnu.org),	\
-                     https://ftpmirror.gnu.org/$(PACKAGE),		\
-                     https://$(gnu_rel_host)/gnu/$(PACKAGE))
-
 # Override this in cfg.mk if you are using a different format in your
 # NEWS file.
 today = $(shell date +%Y-%m-%d)
 
-# Select which lines of NEWS are searched for $(news-check-regexp).
-# This is a sed line number spec.  The default says that we search
-# lines 1..10 of NEWS for $(news-check-regexp).
-# If you want to search only line 3 or only lines 20-22, use "3" or "20,22".
-news-check-lines-spec ?= 1,10
-news-check-regexp ?= '^\*.* $(VERSION_REGEXP) \($(today)\)'
-
 # 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
@@ -1181,15 +1109,6 @@ sc_makefile_at_at_check:
 	    $$($(VC_LIST_EXCEPT) | $(GREP) -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \
 	  && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
 
-news-check: NEWS
-	$(AM_V_GEN)if $(SED) -n $(news-check-lines-spec)p $<		\
-	    | $(GREP) -E $(news-check-regexp) >/dev/null; then		\
-	  :;								\
-	else								\
-	  echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2;	\
-	  exit 1;							\
-	fi
-
 sc_makefile_TAB_only_indentation:
 	@prohibit='^	[ ]{8}'						\
 	in_vc_files='akefile|\.mk$$'					\
@@ -1360,395 +1279,3 @@ sc_vulnerable_makefile_CVE-2012-3386:
 	  '  "make distcheck", and upgrade to fixed automake'		\
 	  '  see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-3386 for details') \
 	  $(_sc_search_regexp)
-
-vc-diff-check:
-	$(AM_V_GEN)(unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || :
-	$(AM_V_at)if test -s vc-diffs; then			\
-	  cat vc-diffs;						\
-	  echo "Some files are locally modified:" 1>&2;		\
-	  exit 1;						\
-	else							\
-	  rm vc-diffs;						\
-	fi
-
-rel-files = $(DIST_ARCHIVES)
-
-gnulib-version = $$(cd $(gnulib_dir)				\
-                    && { git describe || git rev-parse --short=10 HEAD; } )
-bootstrap-tools ?= autoconf,automake,gnulib
-
-gpgv = $$(gpgv2 --version >/dev/null && echo gpgv2 || echo gpgv)
-# If it's not already specified, derive the GPG key ID from
-# the signed tag we've just applied to mark this release.
-gpg_key_ID ?=								\
-  $$(cd $(srcdir)							\
-     && git cat-file tag v$(VERSION)					\
-        | $(gpgv) --status-fd 1 --keyring /dev/null - - 2>/dev/null	\
-        | $(AWK) '/^\[GNUPG:\] ERRSIG / {print $$3; exit}')
-
-translation_project_ ?= coordinator@translationproject.org
-
-# Make info-gnu the default only for a stable release.
-announcement_Cc_stable = $(translation_project_), $(PACKAGE_BUGREPORT)
-announcement_mail_headers_stable =		\
-  To: info-gnu@gnu.org				\
-  Cc: $(announcement_Cc_)			\
-  Mail-Followup-To: $(PACKAGE_BUGREPORT)
-
-announcement_Cc_alpha = $(translation_project_)
-announcement_mail_headers_alpha =		\
-  To: $(PACKAGE_BUGREPORT)			\
-  Cc: $(announcement_Cc_)
-
-announcement_mail_Cc_beta = $(announcement_mail_Cc_alpha)
-announcement_mail_headers_beta = $(announcement_mail_headers_alpha)
-
-announcement_mail_Cc_ ?= $(announcement_mail_Cc_$(release-type))
-announcement_mail_headers_ ?= $(announcement_mail_headers_$(release-type))
-announcement: NEWS ChangeLog $(rel-files)
-# Not $(AM_V_GEN) since the output of this command serves as
-# announcement message: it would start with " GEN announcement".
-	$(AM_V_at)$(srcdir)/$(_build-aux)/announce-gen			\
-	    --mail-headers='$(announcement_mail_headers_)'		\
-	    --release-type=$(release-type)				\
-	    --package=$(PACKAGE)					\
-	    --prev=$(PREV_VERSION)					\
-	    --curr=$(VERSION)						\
-	    --gpg-key-id=$(gpg_key_ID)					\
-	    --srcdir=$(srcdir)						\
-	    --news=$(srcdir)/NEWS					\
-	    --bootstrap-tools=$(bootstrap-tools)			\
-	    $$(case ,$(bootstrap-tools), in (*,gnulib,*)		\
-	       echo --gnulib-version=$(gnulib-version);; esac)		\
-	    --no-print-checksums					\
-	    $(addprefix --url-dir=, $(url_dir_list))
-
-.PHONY: release-commit
-release-commit:
-	$(AM_V_GEN)cd $(srcdir)				\
-	  && $(_build-aux)/do-release-commit-and-tag	\
-	       -C $(abs_top_builddir) $(RELEASE)
-
-## ---------------- ##
-## Updating files.  ##
-## ---------------- ##
-
-ftp-gnu = https://ftp.gnu.org/gnu
-www-gnu = https://www.gnu.org
-
-upload_dest_dir_ ?= $(PACKAGE)
-upload_command =						\
-  $(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS)		\
-  --to $(gnu_rel_host):$(upload_dest_dir_)			\
-  $(rel-files)
-emit_upload_commands:
-	@echo =====================================
-	@echo =====================================
-	@echo '$(upload_command)'
-	@echo '# send the ~/announce-$(my_distdir) e-mail'
-	@echo =====================================
-	@echo =====================================
-
-.PHONY: upload
-upload:
-	$(AM_V_GEN)$(upload_command)
-
-define emit-commit-log
-  printf '%s\n' 'maint: 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:
-	$(AM_V_GEN)if test -d $(srcdir)/.git				\
-		&& git --version >/dev/null 2>&1; 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 "$$diff"; exit 1;; esac;				\
-	else								\
-	  : ;								\
-	fi
-
-submodule-checks ?= no-submodule-changes public-submodule-commit
-
-# Ensure that each sub-module commit we're using is public.
-# Without this, it is too easy to tag and release code that
-# cannot be built from a fresh clone.
-.PHONY: public-submodule-commit
-public-submodule-commit:
-	$(AM_V_GEN)if test -d $(srcdir)/.git				\
-		&& git --version >/dev/null 2>&1; then			\
-	  cd $(srcdir) &&						\
-	  git submodule --quiet foreach					\
-	      'test "$$(git rev-parse "$$sha1")"			\
-		  = "$$(git merge-base origin "$$sha1")"'		\
-	    || { echo '$(ME): found non-public submodule commit' >&2;	\
-		 exit 1; };						\
-	else								\
-	  : ;								\
-	fi
-# This rule has a high enough utility/cost ratio that it should be a
-# dependent of "check" by default.  However, some of us do occasionally
-# commit a temporary change that deliberately points to a non-public
-# submodule commit, and want to be able to use rules like "make check".
-# In that case, run e.g., "make check gl_public_submodule_commit="
-# to disable this test.
-gl_public_submodule_commit ?= public-submodule-commit
-check: $(gl_public_submodule_commit)
-
-.PHONY: alpha beta stable release
-ALL_RECURSIVE_TARGETS += alpha beta stable
-alpha beta stable: $(local-check) writable-files $(submodule-checks)
-	$(AM_V_GEN)test $@ = stable					\
-	  && { echo $(VERSION) | $(GREP) -E '^[0-9]+(\.[0-9]+)+$$'	\
-	       || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
-	  || :
-	$(AM_V_at)$(MAKE) vc-diff-check
-	$(AM_V_at)$(MAKE) news-check
-	$(AM_V_at)$(MAKE) distcheck
-	$(AM_V_at)$(MAKE) dist
-	$(AM_V_at)$(MAKE) $(release-prep-hook) RELEASE_TYPE=$@
-	$(AM_V_at)$(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
-
-release:
-	$(AM_V_GEN)$(MAKE) _version
-	$(AM_V_GEN)$(MAKE) $(release-type)
-
-# Override this in cfg.mk if you follow different procedures.
-release-prep-hook ?= release-prep
-
-gl_noteworthy_news_ = * Noteworthy changes in release ?.? (????-??-??) [?]
-.PHONY: release-prep
-release-prep:
-	$(AM_V_GEN)$(MAKE) --no-print-directory -s announcement \
-	  > ~/announce-$(my_distdir)
-	$(AM_V_at)if test -d $(release_archive_dir); then	\
-	  ln $(rel-files) $(release_archive_dir);		\
-	  chmod a-w $(rel-files);				\
-	fi
-	$(AM_V_at)echo $(VERSION) > $(prev_version_file)
-	$(AM_V_at)$(MAKE) update-NEWS-hash
-	$(AM_V_at)perl -pi						\
-	  -e '$$. == 3 and print "$(gl_noteworthy_news_)\n\n\n"'	\
-	  $(srcdir)/NEWS
-	$(AM_V_at)msg=$$($(emit-commit-log)) || exit 1;		\
-	cd $(srcdir) && $(VC) commit -m "$$msg" -a
-
-# Override this with e.g., -s $(srcdir)/some_other_name.texi
-# if the default $(PACKAGE)-derived name doesn't apply.
-gendocs_options_ ?=
-
-.PHONY: web-manual
-web-manual:
-	$(AM_V_GEN)test -z "$(manual_title)" \
-	  && { echo define manual_title in cfg.mk 1>&2; exit 1; } || :
-	$(AM_V_at)cd '$(srcdir)/doc'; \
-	  $(SHELL) ../$(_build-aux)/gendocs.sh $(gendocs_options_) \
-	     -o '$(abs_top_builddir)/doc/manual' \
-	     --email $(PACKAGE_BUGREPORT) $(PACKAGE) \
-	    "$(PACKAGE_NAME) - $(manual_title)"
-	$(AM_V_at)echo " *** Upload the doc/manual directory to web-cvs."
-
-.PHONY: web-manual-update
-web-manual-update:
-	$(AM_V_GEN)cd $(srcdir) \
-	  && $(_build-aux)/gnu-web-doc-update -C $(abs_top_builddir)
-
-
-# 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:
-	$(MAKE) init-coverage
-	$(MAKE) build-coverage
-	$(MAKE) gen-coverage
-
-# Some projects carry local adjustments for gnulib modules via patches in
-# a gnulib patch directory whose default name is gl/ (defined in bootstrap
-# via local_gl_dir=gl).  Those patches become stale as the originals evolve
-# in gnulib.  Use this rule to refresh any stale patches.  It applies each
-# patch to the original in $(gnulib_dir) and uses the temporary result to
-# generate a fuzz-free .diff file.  If you customize the name of your local
-# gnulib patch directory via bootstrap.conf, this rule detects that name.
-# Run this from a non-VPATH (i.e., srcdir) build directory.
-.PHONY: refresh-gnulib-patches
-refresh-gnulib-patches:
-	gl=gl;								\
-	if test -f bootstrap.conf; then					\
-	  t=$$(perl -lne '/^\s*local_gl_dir=(\S+)/ and $$d=$$1;'	\
-	       -e 'END{defined $$d and print $$d}' bootstrap.conf);	\
-	  test -n "$$t" && gl=$$t;					\
-	fi;								\
-	for diff in $$(cd $$gl; git ls-files | $(GREP) '\.diff$$'); do	\
-	  b=$$(printf %s "$$diff"|$(SED) 's/\.diff$$//');		\
-	  VERSION_CONTROL=none						\
-	    patch "$(gnulib_dir)/$$b" "$$gl/$$diff" || exit 1;		\
-	  ( cd $(gnulib_dir) || exit 1;					\
-	    git diff "$$b" > "../$$gl/$$diff";				\
-	    git checkout $$b ) || exit 1;				\
-	done
-
-# Update gettext files.
-PACKAGE ?= $(shell basename $(PWD))
-PO_DOMAIN ?= $(PACKAGE)
-POURL = https://translationproject.org/latest/$(PO_DOMAIN)/
-PODIR ?= po
-refresh-po:
-	rm -f $(PODIR)/*.po && \
-	echo "$(ME): getting translations into po (please ignore the robots.txt ERROR 404)..." && \
-	wget --no-verbose --directory-prefix $(PODIR) --no-directories --recursive --level 1 --accept .po --accept .po.1 $(POURL) && \
-	echo 'en@boldquot' > $(PODIR)/LINGUAS && \
-	echo 'en@quot' >> $(PODIR)/LINGUAS && \
-	ls $(PODIR)/*.po | $(SED) 's/\.po//;s,$(PODIR)/,,' | \
-	  sort >> $(PODIR)/LINGUAS
-
- # Running indent once is not idempotent, but running it twice is.
-INDENT_SOURCES ?= $(C_SOURCES)
-.PHONY: indent
-indent:
-	indent $(INDENT_SOURCES)
-	indent $(INDENT_SOURCES)
-
-# If you want to set UPDATE_COPYRIGHT_* environment variables,
-# put the assignments in this variable.
-update-copyright-env ?=
-
-# Run this rule once per year (usually early in January)
-# to update all FSF copyright year lists in your project.
-# If you have an additional project-specific rule,
-# add it in cfg.mk along with a line 'update-copyright: prereq'.
-# By default, exclude all variants of COPYING; you can also
-# add exemptions (such as ChangeLog..* for rotated change logs)
-# in the file .x-update-copyright.
-.PHONY: update-copyright
-update-copyright:
-	$(AM_V_GEN)$(GREP) -l -w Copyright                               \
-	  $$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
-	  | $(update-copyright-env) xargs $(srcdir)/$(_build-aux)/$@
-
-# This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
-# overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
-
-# NOTE: to override any _gl_TS_* default value, you must
-# define the variable(s) using "export" in cfg.mk.
-_gl_TS_dir ?= src
-
-ALL_RECURSIVE_TARGETS += sc_tight_scope
-sc_tight_scope: tight-scope.mk
-	@fail=0;							\
-	if ! $(GREP) '^ *export _gl_TS_headers *=' $(_build-aux)/cfg.mk	\
-		> /dev/null						\
-	   && ! $(GREP) -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
-		> /dev/null 2>&1; then					\
-	    echo '$(ME): skipping $@';					\
-	else								\
-	    $(MAKE) -s -C $(_gl_TS_dir)					\
-		-f Makefile						\
-		-f $(_build-aux)/cfg.mk				\
-		-f $(abs_top_builddir)/$<				\
-	      _gl_tight_scope						\
-		|| fail=1;						\
-	fi;								\
-	rm -f $<;							\
-	exit $$fail
-
-tight-scope.mk: $(ME)
-	@rm -f $@ $@-t
-	@perl -ne '/^# TS-start/.../^# TS-end/ and print' $(srcdir)/$(ME) > $@-t
-	@chmod a=r $@-t && mv $@-t $@
-
-ifeq (a,b)
-# TS-start
-
-# Most functions should have static scope.
-# Any that don't must be marked with 'extern', but 'main'
-# and 'usage' are exceptions: they're always extern, but
-# do not need to be marked.  Symbols matching '__.*' are
-# reserved by the compiler, so are automatically excluded below.
-_gl_TS_unmarked_extern_functions ?= main usage
-_gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\w+) *\(/
-
-# If your project uses a macro like "XTERN", then put
-# the following in cfg.mk to override this default:
-# export _gl_TS_extern = extern|XTERN
-_gl_TS_extern ?= extern
-
-# The second nm|grep checks for file-scope variables with 'extern' scope.
-# Without gnulib's progname module, you might put program_name here.
-# Symbols matching '__.*' are reserved by the compiler,
-# so are automatically excluded below.
-_gl_TS_unmarked_extern_vars ?=
-
-# NOTE: the _match variables are perl expressions -- not mere regular
-# expressions -- so that you can extend them to match other patterns
-# and easily extract matched variable names.
-# For example, if your project declares some global variables via
-# a macro like this: GLOBAL(type, var_name, initializer), then you
-# can override this definition to automatically extract those names:
-# export _gl_TS_var_match = \
-#   /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
-_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
-
-# The names of object files in (or relative to) $(_gl_TS_dir).
-_gl_TS_obj_files ?= *.$(OBJEXT)
-
-# Files in which to search for the one-line style extern declarations.
-# $(_gl_TS_dir)-relative.
-_gl_TS_headers ?= $(noinst_HEADERS)
-_gl_TS_other_headers ?= *.h
-
-.PHONY: _gl_tight_scope
-_gl_tight_scope: $(bin_PROGRAMS)
-	sed_wrap='s/^/^_?/;s/$$/$$/';					\
-	t=exceptions-$$$$;						\
-	trap 's=$$?; rm -f $$t; exit $$s' 0;				\
-	for sig in 1 2 3 13 15; do					\
-	  eval "trap 'v=`expr $$sig + 128`; (exit $$v); exit $$v' $$sig"; \
-	done;								\
-	src=`for f in $(SOURCES); do					\
-	       test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`;	\
-	hdr=`for f in $(_gl_TS_headers); do				\
-	       test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`;	\
-	( printf '%s\n' '__.*' $(_gl_TS_unmarked_extern_functions);	\
-	  $(GREP) -h -A1 '^extern .*[^;]$$' $$src			\
-	    | $(GREP) -vE '^(extern |--|#)' | $(SED) 's/ .*//; /^$$/d';	\
-	  perl -lne							\
-	     '$(_gl_TS_function_match) and print $$1' $$hdr;		\
-	) | sort -u | $(SED) "$$sed_wrap" > $$t;			\
-	nm -g $(_gl_TS_obj_files)|$(SED) -n 's/.* T //p'|$(GREP) -Ev -f $$t \
-	  && { echo the above functions should have static scope >&2;	\
-	       exit 1; } || : ;						\
-	( printf '%s\n' '__.*' main $(_gl_TS_unmarked_extern_vars);	\
-	  perl -lne '$(_gl_TS_var_match) and print $$1'			\
-		$$hdr $(_gl_TS_other_headers)				\
-	) | sort -u | $(SED) "$$sed_wrap" > $$t;			\
-	nm -g $(_gl_TS_obj_files) | $(SED) -n 's/.* [BCDGRS] //p'	\
-            | sort -u | $(GREP) -Ev -f $$t				\
-	  && { echo the above variables should have static scope >&2;	\
-	       exit 1; } || :
-# TS-end
-endif