build: update gnulib submodule to latest

.gitignore

@@ -10,6 +10,7 @@
 /INSTALL
 /README-release
 /aclocal.m4
+/build-aux
 /config.cache
 /config.log
 /config.status

bootstrap

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2012-02-11.09; # UTC
+scriptversion=2012-05-13.09; # UTC
 
 # Bootstrap this package from checked-out sources.
 
@@ -36,6 +36,10 @@ nl='
 LC_ALL=C
 export LC_ALL
 
+# Ensure that CDPATH is not set.  Otherwise, the output from cd
+# would cause trouble in at least one use below.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
 local_gl_dir=gl
 
 me=$0
@@ -126,7 +130,7 @@ extract_package_name='
      p
   }
 '
-package=`sed -n "$extract_package_name" configure.ac` || exit
+package=$(sed -n "$extract_package_name" configure.ac) || exit
 gnulib_name=lib$package
 
 build_aux=build-aux
@@ -252,7 +256,7 @@ do
     usage
     exit;;
   --gnulib-srcdir=*)
-    GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;
+    GNULIB_SRCDIR=${option#--gnulib-srcdir=};;
   --skip-po)
     SKIP_PO=t;;
   --force)
@@ -319,7 +323,7 @@ insert_vc_ignore() {
     # A .gitignore entry that does not start with '/' applies
     # recursively to subdirectories, so prepend '/' to every
     # .gitignore entry.
-    pattern=`echo "$pattern" | sed s,^,/,`;;
+    pattern=$(echo "$pattern" | sed s,^,/,);;
   esac
   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 }
@@ -423,12 +427,28 @@ check_versions() {
       $use_git || continue
     fi
     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
-    appvar=`echo $app | tr '[a-z]-' '[A-Z]_'`
+    appvar=$(echo $app | LC_ALL=C tr '[a-z]-' '[A-Z]_')
     test "$appvar" = TAR && appvar=AMTAR
     case $appvar in
         GZIP) ;; # Do not use $GZIP:  it contains gzip options.
         *) eval "app=\${$appvar-$app}" ;;
     esac
+
+    # Handle the still-experimental Automake-NG programs specially.
+    # They remain named as the mainstream Automake programs ("automake",
+    # and "aclocal") to avoid gratuitous incompatibilities with
+    # pre-existing usages (by, say, autoreconf, or custom autogen.sh
+    # scripts), but correctly identify themselves (as being part of
+    # "GNU automake-ng") when asked their version.
+    case $app in
+      automake-ng|aclocal-ng)
+        app=${app%-ng}
+        ($app --version | grep '(GNU automake-ng)') >/dev/null 2>&1 || {
+          echo "$me: Error: '$app' not found or not from Automake-NG" >&2
+          ret=1
+          continue
+        } ;;
+    esac
     if [ "$req_ver" = "-" ]; then
       # Merely require app to exist; not all prereq apps are well-behaved
       # so we have to rely on $? rather than get_version.
@@ -492,10 +512,8 @@ esac
 
 # When we can deduce that gnulib-tool will require patch,
 # and when patch is not already listed as a prerequisite, add it, too.
-if test ! -d "$local_gl_dir" \
-    || find "$local_gl_dir" -name '*.diff' -exec false {} +; then
-  :
-else
+if test -d "$local_gl_dir" \
+    && ! find "$local_gl_dir" -name '*.diff' -exec false {} +; then
   case $buildreq in
     *patch*) ;;
     *) buildreq="patch -
@@ -539,7 +557,7 @@ git_modules_config () {
   test -f .gitmodules && git config --file .gitmodules "$@"
 }
 
-gnulib_path=`git_modules_config submodule.gnulib.path`
+gnulib_path=$(git_modules_config submodule.gnulib.path)
 test -z "$gnulib_path" && gnulib_path=gnulib
 
 # Get gnulib files.
@@ -612,10 +630,10 @@ download_po_files() {
   subdir=$1
   domain=$2
   echo "$me: getting translations into $subdir for $domain..."
-  cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
+  cmd=$(printf "$po_download_command_format" "$domain" "$subdir")
   eval "$cmd" && return
   # Fallback to HTTP.
-  cmd=`printf "$po_download_command_format2" "$subdir" "$domain"`
+  cmd=$(printf "$po_download_command_format2" "$subdir" "$domain")
   eval "$cmd"
 }
 
@@ -638,7 +656,7 @@ update_po_files() {
     && ls "$ref_po_dir"/*.po 2>/dev/null |
       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
 
-  langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
+  langs=$(cd $ref_po_dir && echo *.po | sed 's/\.po//g')
   test "$langs" = '*' && langs=x
   for po in $langs; do
     case $po in x) continue;; esac
@@ -675,18 +693,18 @@ symlink_to_dir()
 
     # If the destination directory doesn't exist, create it.
     # This is required at least for "lib/uniwidth/cjk.h".
-    dst_dir=`dirname "$dst"`
+    dst_dir=$(dirname "$dst")
     if ! test -d "$dst_dir"; then
       mkdir -p "$dst_dir"
 
       # If we've just created a directory like lib/uniwidth,
       # tell version control system(s) it's ignorable.
       # FIXME: for now, this does only one level
-      parent=`dirname "$dst_dir"`
+      parent=$(dirname "$dst_dir")
       for dot_ig in x $vc_ignore; do
         test $dot_ig = x && continue
         ig=$parent/$dot_ig
-        insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
+        insert_vc_ignore $ig "${dst_dir##*/}"
       done
     fi
 
@@ -710,10 +728,10 @@ symlink_to_dir()
       # so that broken tools aren't confused into skipping needed builds.  See
       # <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
       test -h "$dst" &&
-      src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
-      dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
+      src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 &&
+      dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 &&
       test "$src_i" = "$dst_i" &&
-      both_ls=`ls -dt "$src" "$dst"` &&
+      both_ls=$(ls -dt "$src" "$dst") &&
       test "X$both_ls" = "X$dst$nl$src" || {
         dot_dots=
         case $src in
@@ -758,9 +776,15 @@ 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.
+# libtoolize 1.9b added the --install option; but we support back
+# to libtoolize 1.5.22, where the install action was default.
 if test $use_libtool = 1; then
-  echo "running: $LIBTOOLIZE --copy --install"
-  $LIBTOOLIZE --copy --install
+  install=
+  case $($LIBTOOLIZE --help) in
+    *--install*) install=--install ;;
+  esac
+  echo "running: $LIBTOOLIZE $install --copy"
+  $LIBTOOLIZE $install --copy
 fi
 
 version_controlled_file() {
@@ -842,7 +866,7 @@ AUTOPOINT=true LIBTOOLIZE=true \
 for file in $gnulib_extra_files; do
   case $file in
   */INSTALL) dst=INSTALL;;
-  build-aux/*) dst=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
+  build-aux/*) dst=$build_aux/${file#build-aux/};;
   *) dst=$file;;
   esac
   symlink_to_dir "$GNULIB_SRCDIR" $file $dst || exit
@@ -863,6 +887,16 @@ if test $with_gettext = yes; then
     }
   ' po/Makevars.template >po/Makevars || exit 1
 
+  # If the 'gettext' module is in use, grab the latest Makefile.in.in.
+  # If only the 'gettext-h' module is in use, assume autopoint already
+  # put the correct version of this file into place.
+  case $gnulib_modules in
+  *gettext-h*) ;;
+  *gettext*)
+    cp $GNULIB_SRCDIR/build-aux/po/Makefile.in.in po/Makefile.in.in || exit 1
+    ;;
+  esac
+
   if test -d runtime-po; then
     # Similarly for runtime-po/Makevars, but not quite the same.
     rm -f runtime-po/Makevars

gl/lib/regcomp.c.diff

@@ -1,8 +1,7 @@
-diff --git a/lib/regcomp.c b/lib/regcomp.c
-index d5968bd..4926676 100644
+diff -pu a/lib/regcomp.c b/lib/regcomp.c
 --- a/lib/regcomp.c
 +++ b/lib/regcomp.c
-@@ -541,7 +541,7 @@ regerror (errcode, preg, errbuf, errbuf_size)
+@@ -539,7 +539,7 @@ regerror (errcode, preg, errbuf, errbuf_
      size_t errbuf_size;
  #else /* size_t might promote */
  size_t
@@ -11,7 +10,7 @@ index d5968bd..4926676 100644
  	  char *_Restrict_ errbuf, size_t errbuf_size)
  #endif
  {
-@@ -1383,7 +1383,7 @@ calc_first (void *extra, bin_tree_t *node)
+@@ -1415,7 +1415,7 @@ calc_first (void *extra, bin_tree_t *nod
 
  /* Pass 2: compute NEXT on the tree.  Preorder visit.  */
  static reg_errcode_t
@@ -20,17 +19,20 @@ index d5968bd..4926676 100644
  {
    switch (node->token.type)
      {
-@@ -2744,7 +2744,8 @@ static reg_errcode_t
+@@ -2798,8 +2798,10 @@ build_range_exp (const reg_syntax_t synt
+ static reg_errcode_t
  internal_function
- build_collating_symbol (bitset_t sbcset,
  # ifdef RE_ENABLE_I18N
--			re_charset_t *mbcset, Idx *coll_sym_alloc,
+-build_collating_symbol (bitset_t sbcset, re_charset_t *mbcset,
+-			Idx *coll_sym_alloc, const unsigned char *name)
++build_collating_symbol (bitset_t sbcset,
 +			re_charset_t *mbcset _UNUSED_PARAMETER_,
 +			Idx *coll_sym_alloc _UNUSED_PARAMETER_,
- # endif
- 			const unsigned char *name)
- {
-@@ -3323,7 +3324,8 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token,
++			const unsigned char *name)
+ # else /* not RE_ENABLE_I18N */
+ build_collating_symbol (bitset_t sbcset, const unsigned char *name)
+ # endif /* not RE_ENABLE_I18N */
+@@ -3383,7 +3385,8 @@ parse_bracket_exp (re_string_t *regexp,
 
  static reg_errcode_t
  parse_bracket_element (bracket_elem_t *elem, re_string_t *regexp,
@@ -40,7 +42,7 @@ index d5968bd..4926676 100644
  		       reg_syntax_t syntax, bool accept_hyphen)
  {
  #ifdef RE_ENABLE_I18N
-@@ -3410,8 +3412,9 @@ parse_bracket_symbol (bracket_elem_t *elem, re_string_t *regexp,
+@@ -3470,8 +3473,9 @@ parse_bracket_symbol (bracket_elem_t *el
 
  static reg_errcode_t
  #ifdef RE_ENABLE_I18N
@@ -52,7 +54,7 @@ index d5968bd..4926676 100644
  #else /* not RE_ENABLE_I18N */
  build_equiv_class (bitset_t sbcset, const unsigned char *name)
  #endif /* not RE_ENABLE_I18N */
-@@ -3816,7 +3819,7 @@ free_token (re_token_t *node)
+@@ -3877,7 +3881,7 @@ free_token (re_token_t *node)
     and its children. */
 
  static reg_errcode_t

gnulib

@@ -1 +1 @@
-Subproject commit 55b0a0b1dd267ef48971e4bb84768244ff58b340
+Subproject commit 258577fccc77760d91f8c28286aaa4838ca9cd90