update from gettext 0.18.2

[Bruno Haible]

Daiki Ueno wrote in 
<http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00018.html>:
> >> Not sure whether Gnulib simply syncs those files from Gettext, in
> >
> > It used to, and the mechanism is still there,
> > but it's not being used now.  It'd be easy to
> > start it up again, if you just give us a list
> > of files to copy (from and to locations).
> 
> Please find below the list (taken from the output of "make -n
> distcheck-hook" in gettext).

The mechanism is to update the .m4 files from gettext to gnulib once, shortly
after a gettext release. Which I'm doing now.


2013-03-02  Bruno Haible  <address@hidden>

        gettext: Update to version 0.18.2.
        * m4/intl.m4, m4/po.m4: Update from gettext-0.18.2. In particular:
        2012-12-07  Stefano Lattarini  <address@hidden>
                * intl.m4, po.m4: Bump requirement in AC_PREREQ to 2.60.

diff --git a/m4/intl.m4 b/m4/intl.m4
index b8cc79f..486b5cc 100644
--- a/m4/intl.m4
+++ b/m4/intl.m4
@@ -1,4 +1,4 @@
-# intl.m4 serial 17d
+# intl.m4 serial 22 (gettext-0.18.2)
 dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,7 +17,7 @@ dnl Authors:
 dnl   Ulrich Drepper <address@hidden>, 1995-2000.
 dnl   Bruno Haible <address@hidden>, 2000-2009.
 
-AC_PREREQ([2.53])
+AC_PREREQ([2.60])
 
 dnl Checks for all prerequisites of the intl subdirectory,
 dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
@@ -55,7 +55,7 @@ AC_DEFUN([AM_INTL_SUBDIR],
     [AC_DEFINE([ptrdiff_t], [long],
        [Define as the type of the result of subtracting two pointers, if the 
system doesn't define it.])
     ])
-  AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
+  AC_CHECK_HEADERS([features.h stddef.h stdlib.h string.h])
   AC_CHECK_FUNCS([asprintf fwprintf newlocale putenv setenv setlocale \
     snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])
 
@@ -295,6 +295,6 @@ AC_DEFUN([gt_CHECK_DECL],
   else
     gt_value=0
   fi
-  AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
+  AC_DEFINE_UNQUOTED([HAVE_DECL_]m4_translit($1, [a-z], [A-Z]), [$gt_value],
     [Define to 1 if you have the declaration of '$1', and to 0 if you don't.])
 ])
diff --git a/m4/po.m4 b/m4/po.m4
index 5fde6f2..f395723 100644
--- a/m4/po.m4
+++ b/m4/po.m4
@@ -1,4 +1,4 @@
-# po.m4 serial 17c
+# po.m4 serial 20 (gettext-0.18.2)
 dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,7 +17,7 @@ dnl Authors:
 dnl   Ulrich Drepper <address@hidden>, 1995-2000.
 dnl   Bruno Haible <address@hidden>, 2000-2003.
 
-AC_PREREQ([2.50])
+AC_PREREQ([2.60])
 
 dnl Checks for all prerequisites of the po subdirectory.
 AC_DEFUN([AM_PO_SUBDIRS],
@@ -102,7 +102,7 @@ changequote([,])dnl
       case "$ac_file" in */Makefile.in)
         # Adjust a relative srcdir.
         ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
-        ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+        ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'`
         ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
         # In autoconf-2.13 it is called $ac_given_srcdir.
         # In autoconf-2.50 it is called $srcdir.
@@ -227,7 +227,7 @@ AC_DEFUN([AM_POSTPROCESS_PO_MAKEFILE],
 changequote(,)dnl
   # Adjust a relative srcdir.
   ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
-  ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+  ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'`
   ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
   # In autoconf-2.13 it is called $ac_given_srcdir.
   # In autoconf-2.50 it is called $srcdir.