Import new gnulib.

m4/localeconv.m4

@@ -0,0 +1,22 @@
+# localeconv.m4 serial 1
+dnl Copyright (C) 2012-2013 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_LOCALECONV],
+[
+  AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
+  AC_REQUIRE([gl_LOCALE_H])
+
+  if test $REPLACE_STRUCT_LCONV = 1; then
+    REPLACE_LOCALECONV=1
+  fi
+])
+
+# Prerequisites of lib/localeconv.c.
+AC_DEFUN([gl_PREREQ_LOCALECONV],
+[
+  AC_CHECK_MEMBERS([struct lconv.decimal_point], [], [],
+    [[#include <locale.h>]])
+])