check: enable gnulib's testsuite

* Makefile.am (SUBDIRS): Add gnulib-tests.
(EXTRA_DIST): Distribute also update-copyright script.  This does
not happen automatically because we manually remove ./lib
directory created by gnulib-tool.  Not having the file distributed
causes 'make check' failure, however.
(dotversion): Fix to point to $(top_srcdir).
* bootstrap.conf (gnulib_tool_options): Add gnulib-tool args
needed to successfully install gnulib's tests.
* configure.ac (CONFIG_STATUS_DEPENDENCIES): Look for .version in
$(top_srcdir).
* gnulib: Sync with upstream.
* build-aux/.gitignore: Ignore ar-lib coming from automake.

.gitignore

@@ -41,6 +41,7 @@
 /INSTALL
 /README-release
 /gnulib-local
+/gnulib-tests
 /libtoolize
 /libtoolize.in
 /maint.mk

Makefile.am

@@ -27,7 +27,7 @@ ACLOCAL_AMFLAGS		= -I m4
 AM_CPPFLAGS		=
 AM_LDFLAGS		=
 
-SUBDIRS			= .
+SUBDIRS			= . gnulib-tests
 DIST_SUBDIRS		= $(SUBDIRS)
 EXTRA_DIST		=
 
@@ -88,11 +88,12 @@ ltversion_in	= $(srcdir)/$(macro_dir)/ltversion.in
 ltversion_m4	= $(srcdir)/$(macro_dir)/ltversion.m4
 no_bogus_macros	= $(srcdir)/$(aux_dir)/no-bogus-m4-defines
 options_parser	= $(srcdir)/$(aux_dir)/options-parser
+u2d_copyright	= $(srcdir)/$(aux_dir)/update-copyright
 
 EXTRA_DIST     += $(extract_trace) $(funclib_sh) $(inline_source) \
 		  $(libtoolize_in) $(ltmain_in) $(ltmain_sh) \
 		  $(ltversion_in) $(ltversion_m4) $(no_bogus_macros) \
-		  $(options_parser)
+		  $(options_parser) $(u2d_copyright)
 
 ## These are the replacements that need to be made at bootstrap time,
 ## because they must be static in distributed files, and not accidentally
@@ -538,7 +539,7 @@ git_log_fix		= $(srcdir)/$(aux_dir)/git-log-fix
 thanks_gen		= $(srcdir)/$(aux_dir)/thanks-gen
 
 dotserial		= $(distdir)/.serial
-dotversion		= $(srcdir)/.version
+dotversion		= $(top_srcdir)/.version
 tarball_version		= $(distdir)/.tarball-version
 readme			= $(distdir)/README
 changelog		= $(distdir)/ChangeLog

NEWS

@@ -8,6 +8,8 @@ NEWS - list of user-visible changes between releases of GNU Libtool
     variable, which obsoletes AR_FLAGS.  This is due to naming conventions
     among other *FLAGS and to be consistent with Automake's ARFLAGS.
 
+  - Gnulib testsuite is enabled and run during 'make check'.
+
 ** Important incompatible changes:
 
   - Libtool changed ARFLAGS/AR_FLAGS default from 'cru' to 'cr'.

bootstrap.conf

@@ -61,6 +61,7 @@ gnulib_tool_options=$gnulib_tool_options"
         --avoid=dummy
         --libtool
         --macro-prefix=GL
+        --with-tests --tests-base=gnulib-tests
 "
 
 # gnulib modules used by this package.

build-aux/.gitignore

@@ -1,4 +1,5 @@
 /announce-gen
+/ar-lib
 /compile
 /depcomp
 /do-release-commit-and-tag

configure.ac

@@ -111,7 +111,7 @@ AB_INIT([$autobuild_mode])
 
 
 dnl Make sure config.status is regenerated when the version timestamp changes
-AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(srcdir)/.version'])
+AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_srcdir)/.version'])
 
 
 ## ------------------------------- ##
@@ -182,5 +182,5 @@ AM_MISSING_PROG([HELP2MAN], [help2man])
 ## -------- ##
 ## Outputs. ##
 ## -------- ##
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([Makefile gnulib-tests/Makefile])
 AC_OUTPUT

gnulib

@@ -1 +1 @@
-Subproject commit a5a1569d1953536af019636c49bd3e7a5cbbbde2
+Subproject commit 82d514b0645efd10b2b68b911372ae84e1a54da4