build: fix bootstrap on fresh clone

Commit 29db7a00 picked up a gnulib bug, where a change in
bootstrap meant that it would fail to run libtoolize on
projects, like libvirt, that used the older spelling
AM_PROG_LIBTOOL instead of LT_INIT for the sake of building
on RHEL 5.  Now that gnulib is fixed, we should pick up that
fix.

* .gnulib: Update to latest, for bootstrap fix.
* bootstrap: Resync from gnulib.

.gnulib @ dd6b2d75

-Subproject commit 980097f8eca9e08feb2073d06179f53ba46b805e
+Subproject commit dd6b2d751b3c6ad417f6a4c48f2adb9d27cc59d2

bootstrap

 #! /bin/sh
 # Print a version string.
-scriptversion=2012-01-06.07; # UTC
+scriptversion=2012-01-16.17; # UTC
 
 # Bootstrap this package from checked-out sources.
 
@@ -758,7 +758,7 @@ fi
 # Autoreconf runs aclocal before libtoolize, which causes spurious
 # warnings if the initial aclocal is confused by the libtoolized
 # (or worse out-of-date) macro directory.
-if grep '^[    ]*LT_INIT' configure.ac >/dev/null; then
+if test $use_libtool = 1; then
   echo "running: $LIBTOOLIZE --copy --install"
   $LIBTOOLIZE --copy --install
 fi
@@ -820,10 +820,14 @@ find "$m4_base" "$source_base" \
   -type l -xtype l -delete > /dev/null 2>&1
 
 # Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
+no_recursive=
+case $($AUTORECONF --help) in
+  *--no-recursive*) no_recursive=--no-recursive;;
+esac
 echo "running: AUTOPOINT=true LIBTOOLIZE=true " \
-    "$AUTORECONF --verbose --install --no-recursive -I $m4_base $ACLOCAL_FLAGS"
+    "$AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS"
 AUTOPOINT=true LIBTOOLIZE=true \
-    $AUTORECONF --verbose --install --no-recursive -I $m4_base $ACLOCAL_FLAGS \
+    $AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS \
   || exit 1
 
 # Get some extra files from gnulib, overriding existing files.