-# langinfo_h.m4 serial 2
+# langinfo_h.m4 serial 3
dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_SUBST([HAVE_LANGINFO_H])
AC_SUBST([HAVE_LANGINFO_CODESET])
AC_SUBST([HAVE_LANGINFO_ERA])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <langinfo.h>
+ ]], [nl_langinfo])
])
AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR],