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/* A substitute for ISO C99 <wchar.h>, for platforms that have issues.
Copyright (C) 2007 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 */
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