Update gnulib files.

1 files changed, 102 insertions, 53 deletions

diff --git a/maint.mk b/maint.mk
index 4627bc5..2b454a1 100644
--- a/maint.mk
+++ b/maint.mk
@@ -2,7 +2,7 @@
 # This Makefile fragment tries to be general-purpose enough to be
 # used by many projects via the gnulib maintainer-makefile module.
 
-## Copyright (C) 2001-2012 Free Software Foundation, Inc.
+## Copyright (C) 2001-2013 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
@@ -28,6 +28,28 @@ ifneq ($(build_aux),)
 set $$(_build-aux) relative to $$(srcdir) instead of $$(build_aux)")
 endif
 
+# Helper variables.
+_empty =
+_sp = $(_empty) $(_empty)
+
+# _equal,S1,S2
+# ------------
+# 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 := \
@@ -52,9 +74,9 @@ _dot_escaped_srcdir = $(subst .,\.,$(srcdir))
 # Post-process $(VC_LIST) output, prepending $(srcdir)/, but only
 # when $(srcdir) is not ".".
 ifeq ($(srcdir),.)
-_prepend_srcdir_prefix =
+  _prepend_srcdir_prefix =
 else
-_prepend_srcdir_prefix = | sed 's|^|$(srcdir)/|'
+  _prepend_srcdir_prefix = | sed 's|^|$(srcdir)/|'
 endif
 
 # In order to be able to consistently filter "."-relative names,
@@ -78,32 +100,41 @@ 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)
+  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)
+  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))
+gnu_rel_host ?= $(gnu_ftp_host-$(release-type))
 
-ifeq ($(gnu_rel_host),ftp.gnu.org)
-url_dir_list ?= http://ftpmirror.gnu.org/$(PACKAGE)
-else
-url_dir_list ?= ftp://$(gnu_rel_host)/gnu/$(PACKAGE)
-endif
+url_dir_list ?= $(if $(call _equal,$(gnu_rel_host),ftp.gnu.org),	\
+                     http://ftpmirror.gnu.org/$(PACKAGE),		\
+                     ftp://$(gnu_rel_host)/gnu/$(PACKAGE))
 
 # Override this in cfg.mk if you are using a different format in your
 # NEWS file.
@@ -124,7 +155,7 @@ export LC_ALL = C
 ## Sanity checks.  ##
 ## --------------- ##
 
-_cfg_mk := $(shell test -f $(srcdir)/cfg.mk && echo '$(srcdir)/cfg.mk')
+_cfg_mk := $(wildcard $(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' \
@@ -132,9 +163,9 @@ syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \
 .PHONY: $(syntax-check-rules)
 
 ifeq ($(shell $(VC_LIST) >/dev/null 2>&1; echo $$?),0)
-local-checks-available += $(syntax-check-rules)
+  local-checks-available += $(syntax-check-rules)
 else
-local-checks-available += no-vc-detected
+  local-checks-available += no-vc-detected
 no-vc-detected:
 	@echo "No version control files detected; skipping syntax check"
 endif
@@ -330,7 +361,7 @@ sc_prohibit_atoi_atof:
 sp_ = strcmp *\(.+\)
 sc_prohibit_strcmp:
 	@prohibit='! *strcmp *\(|\<$(sp_) *[!=]=|[!=]= *$(sp_)'		\
-	exclude=':# *define STRN?EQ\('					\
+	exclude='# *define STRN?EQ\('					\
 	halt='replace strcmp calls above with STREQ/STRNEQ'		\
 	  $(_sc_search_regexp)
 
@@ -354,7 +385,7 @@ sc_prohibit_strncpy:
 #      perl -pi -e 's/(^|[^.])\b(exit ?)\(0\)/$1$2(EXIT_SUCCESS)/'
 sc_prohibit_magic_number_exit:
 	@prohibit='(^|[^.])\<(usage|exit|error) ?\(-?[0-9]+[,)]'	\
-	exclude='error ?\((0,|[^,]*)'					\
+	exclude='exit \(77\)|error ?\(((0|77),|[^,]*)'			\
 	halt='use EXIT_* values rather than magic number'		\
 	  $(_sc_search_regexp)
 
@@ -570,8 +601,6 @@ sc_prohibit_c_ctype_without_use:
 	@h='c-ctype.h' re='\<c_($(ctype_re)) *\(' \
 	  $(_sc_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
@@ -724,6 +753,7 @@ sc_require_test_exit_idiom:
 sc_trailing_blank:
 	@prohibit='[	 ]$$'						\
 	halt='found trailing blank(s)'					\
+	exclude='^Binary file .* matches$$'				\
 	  $(_sc_search_regexp)
 
 # Match lines like the following, but where there is only one space
@@ -1091,9 +1121,11 @@ 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.
+# Verify that all source files using _() (more specifically, files that
+# match $(_gl_translatable_string_re)) are listed in po/POTFILES.in.
 po_file ?= $(srcdir)/po/POTFILES.in
 generated_files ?= $(srcdir)/lib/*.[ch]
+_gl_translatable_string_re ?= \b(N?_|gettext *)\([^)"]*("|$$)
 sc_po_check:
 	@if test -f $(po_file); then					\
 	  grep -E -v '^(#|$$)' $(po_file)				\
@@ -1113,7 +1145,7 @@ sc_po_check:
 	    esac;							\
 	    files="$$files $$file";					\
 	  done;								\
-	  grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files		\
+	  grep -E -l '$(_gl_translatable_string_re)' $$files		\
 	    | sed 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2;	\
 	  diff -u -L $(po_file) -L $(po_file) $@-1 $@-2			\
 	    || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; };	\
@@ -1134,7 +1166,7 @@ sc_makefile_path_separator_check:
 # i.e., when pkg-M.N.tar.xz already exists (either in "." or in ../release)
 # and is read-only.
 writable-files:
-	if test -d $(release_archive_dir); then				\
+	$(AM_V_GEN)if test -d $(release_archive_dir); then		\
 	  for file in $(DIST_ARCHIVES); do				\
 	    for p in ./ $(release_archive_dir)/; do			\
 	      test -e $$p$$file || continue;				\
@@ -1216,7 +1248,7 @@ sc_Wundef_boolean:
 # not be constant, or might overflow a stack.  In general, use PATH_MAX as
 # a limit, not an array or alloca size.
 sc_prohibit_path_max_allocation:
-	@prohibit='(\balloca *\([^)]*|\[[^]]*)PATH_MAX'			\
+	@prohibit='(\balloca *\([^)]*|\[[^]]*)\bPATH_MAX'		\
 	halt='Avoid stack allocations of size PATH_MAX'			\
 	  $(_sc_search_regexp)
 
@@ -1265,23 +1297,28 @@ gpg_key_ID ?=								\
 translation_project_ ?= coordinator@translationproject.org
 
 # Make info-gnu the default only for a stable release.
-ifeq ($(RELEASE_TYPE),stable)
-  announcement_Cc_ ?= $(translation_project_), $(PACKAGE_BUGREPORT)
-  announcement_mail_headers_ ?=						\
-    To: info-gnu@gnu.org						\
-    Cc: $(announcement_Cc_)						\
-    Mail-Followup-To: $(PACKAGE_BUGREPORT)
-else
-  announcement_Cc_ ?= $(translation_project_)
-  announcement_mail_headers_ ?=						\
-    To: $(PACKAGE_BUGREPORT)						\
-    Cc: $(announcement_Cc_)
-endif
-
+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)
-	$(AM_V_GEN)$(srcdir)/$(_build-aux)/announce-gen			\
+# 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=$(RELEASE_TYPE)				\
+	    --release-type=$(release-type)				\
 	    --package=$(PACKAGE)					\
 	    --prev=$(PREV_VERSION)					\
 	    --curr=$(VERSION)						\
@@ -1308,16 +1345,22 @@ ftp-gnu = ftp://ftp.gnu.org/gnu
 www-gnu = http://www.gnu.org
 
 upload_dest_dir_ ?= $(PACKAGE)
+upload_command =						\
+  $(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS)		\
+  --to $(gnu_rel_host):$(upload_dest_dir_)			\
+  $(rel-files)
 emit_upload_commands:
 	@echo =====================================
 	@echo =====================================
-	@echo "$(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS) \\"
-	@echo "    --to $(gnu_rel_host):$(upload_dest_dir_) \\"
-	@echo "  $(rel-files)"
+	@echo '$(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.'				\
@@ -1327,7 +1370,8 @@ endef
 
 .PHONY: no-submodule-changes
 no-submodule-changes:
-	$(AM_V_GEN)if test -d $(srcdir)/.git; then			\
+	$(AM_V_GEN)if test -d $(srcdir)/.git				\
+		&& git --version >/dev/null 2>&1; then			\
 	  diff=$$(cd $(srcdir) && git submodule -q foreach		\
 		  git diff-index --name-only HEAD)			\
 	    || exit 1;							\
@@ -1345,10 +1389,12 @@ submodule-checks ?= no-submodule-changes public-submodule-commit
 # cannot be built from a fresh clone.
 .PHONY: public-submodule-commit
 public-submodule-commit:
-	$(AM_V_GEN)if test -d $(srcdir)/.git; then			\
+	$(AM_V_GEN)if test -d $(srcdir)/.git				\
+		&& git --version >/dev/null 2>&1; then			\
 	  cd $(srcdir) &&						\
-	  git submodule --quiet foreach test '$$(git rev-parse $$sha1)'	\
-	      = '$$(git merge-base origin $$sha1)'			\
+	  git submodule --quiet foreach					\
+	      test '"$$(git rev-parse "$$sha1")"'			\
+	      = '"$$(git merge-base origin "$$sha1")"'			\
 	    || { echo '$(ME): found non-public submodule commit' >&2;	\
 		 exit 1; };						\
 	else								\
@@ -1363,7 +1409,7 @@ public-submodule-commit:
 gl_public_submodule_commit ?= public-submodule-commit
 check: $(gl_public_submodule_commit)
 
-.PHONY: alpha beta stable
+.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					\
@@ -1377,15 +1423,16 @@ alpha beta stable: $(local-check) writable-files $(submodule-checks)
 	$(AM_V_at)$(MAKE) $(release-prep-hook) RELEASE_TYPE=$@
 	$(AM_V_at)$(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
 
+release:
+	$(AM_V_GEN)$(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)case $$RELEASE_TYPE in alpha|beta|stable) ;; \
-	  *) echo "invalid RELEASE_TYPE: $$RELEASE_TYPE" 1>&2; exit 1;; esac
-	$(AM_V_at)$(MAKE) --no-print-directory -s announcement \
+	$(AM_V_GEN)$(MAKE) --no-print-directory -s announcement \
 	  > ~/announce-$(my_distdir)
 	$(AM_V_at)if test -d $(release_archive_dir); then	\
 	  ln $(rel-files) $(release_archive_dir);		\
@@ -1575,6 +1622,7 @@ _gl_TS_obj_files ?= *.$(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)
@@ -1597,7 +1645,8 @@ _gl_tight_scope: $(bin_PROGRAMS)
 	  && { echo the above functions should have static scope >&2;	\
 	       exit 1; } || : ;						\
 	( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars);	\
-	  perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h	\
+	  perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"'		\
+		$$hdr $(_gl_TS_other_headers)				\
 	) | sort -u > $$t;						\
 	nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p'		\
             | sort -u | grep -Ev -f $$t					\