c3-lang/libbsd/include/bsd/wchar.h

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• Hash : 86cbff38
  Author :
  Date : 2013-10-11T05:11:42
  

  Handle glibc partial header inclusions The glibc headers use selective inclusions through the __need_NAME mechanism to avoid circular dependencies. The problem is that if we are being overlaid, and have been requested a partial inclusion, when we pass control to the system header, then we might miss definitions needed by our own header, resulting in build failures. Workaround that by catching current partial requests, and skip the current inclusion.

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• include/bsd/wchar.h

• /*
   * Copyright © 2012-2013 Guillem Jover <guillem@hadrons.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #if defined(__need_wchar_t) || defined(__need_wint_t) || \
      defined(__need_mbstate_t)
  #define LIBBSD_WCHAR_H_SKIP
  #endif
  
  #ifdef LIBBSD_OVERLAY
  #include_next <wchar.h>
  #else
  #include <wchar.h>
  #endif
  
  #ifndef LIBBSD_WCHAR_H_SKIP
  #ifndef LIBBSD_WCHAR_H
  #define LIBBSD_WCHAR_H
  
  #include <stddef.h>
  #include <sys/cdefs.h>
  #include <sys/types.h>
  
  __BEGIN_DECLS
  wchar_t *fgetwln(FILE *stream, size_t *len);
  
  size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
  size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
  __END_DECLS
  
  #endif
  #endif
  #undef LIBBSD_WCHAR_H_SKIP
  

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