Subversion Repositories openrisc_2011-10-31

/* A substitute for ISO C99 <wchar.h>, for platforms that have issues.

   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software Foundation,

   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* Written by Eric Blake.  */

/*

 * ISO C 99 <wchar.h> for platforms that have issues.

 * <http://www.opengroup.org/susv3xbd/wchar.h.html>

 *

 * For now, this just ensures proper prerequisite inclusion order and

 * the declaration of wcwidth().

 */

#ifndef _GL_WCHAR_H

/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before

   <wchar.h>.

   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be

   included before <wchar.h>.  */

#include <stddef.h>

#include <stdio.h>

#include <time.h>

/* Include the original <wchar.h> if it exists.

   Some builds of uClibc lack it.  */

/* The include_next requires a split double-inclusion guard.  */

#if @HAVE_WCHAR_H@

# @INCLUDE_NEXT@ @NEXT_WCHAR_H@

#endif

#ifndef _GL_WCHAR_H

#define _GL_WCHAR_H

/* The definition of GL_LINK_WARNING is copied here.  */

#ifdef __cplusplus

extern "C" {

#endif

/* Return the number of screen columns needed for WC.  */

#if @GNULIB_WCWIDTH@

# if @REPLACE_WCWIDTH@

#  undef wcwidth

#  define wcwidth rpl_wcwidth

extern int wcwidth (wchar_t);

# else

#  if !defined wcwidth && !@HAVE_DECL_WCWIDTH@

/* wcwidth exists but is not declared.  */

extern int wcwidth (int /* actually wchar_t */);

#  endif

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcwidth

# define wcwidth(w) \

    (GL_LINK_WARNING ("wcwidth is unportable - " \

                      "use gnulib module wcwidth for portability"), \

     wcwidth (w))

#endif

#ifdef __cplusplus

}

#endif

#endif /* _GL_WCHAR_H */

#endif /* _GL_WCHAR_H */