kc3-lang/gnulib/lib/stddef.in.h

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• Hash : 2f5181b1
  Author :
  Date : 2009-08-12T10:23:03
  

  stddef: fix NetBSD 5.0 NULL bug, rather than working around it
  
  * tests/test-locale.c: Revert previous patch related to NULL.
  * tests/test-stdio.c: Likewise.
  * tests/test-stdlib.c: Likewise.
  * tests/test-string.c: Likewise.
  * tests/test-unistd.c: Likewise.
  * modules/time-tests (Depends-on): Add verify.
  * modules/wchar-tests (Depends-on): Likewise.
  * tests/test-time.c: Test for NULL compliance.
  * tests/test-wchar.c: Likewise.
  * modules/locale (Depends-on): Add stddef.
  * modules/stdio (Depends-on): Likewise.
  * modules/stdlib (Depends-on): Likewise.
  * modules/string (Depends-on): Likewise.
  * modules/time (Depends-on): Likewise.
  * modules/unistd (Depends-on): Likewise.
  * modules/wchar (Depends-on): Likewise.
  * lib/locale.in.h (includes): Use <stddef.h> to fix NULL.
  * lib/stdlib.in.h (includes): Likewise.
  * lib/string.in.h (includes): Likewise.
  * lib/time.in.h (includes): Likewise.
  * lib/unistd.in.h (includes): Likewise.
  * m4/locale_h.m4 (gl_LOCALE_H): Replace locale.h if stddef.h was
  replaced.
  * m4/wchar.m4 (gl_WCHAR_H): Likewise.
  * m4/stddef_h.m4: New file.
  * modules/stddef: Likewise.
  * lib/stddef.in.h: Likewise.
  * modules/stddef-tests: Likewise.
  * tests/test-stddef.c: Likewise.
  * MODULES.html.sh (Basic types <stddef.h>): Mention new module.
  * doc/posix-headers/stddef.texi (stddef.h): Document the bug.
  * doc/posix-headers/locale.texi (locale.h): Likewise.
  * doc/posix-headers/stdio.texi (stdio.h): Likewise.
  * doc/posix-headers/stdlib.texi (stdlib.h): Likewise.
  * doc/posix-headers/string.texi (string.h): Likewise.
  * doc/posix-headers/time.texi (time.h): Likewise.
  * doc/posix-headers/unistd.texi (unistd.h): Likewise.
  * doc/posix-headers/wchar.texi (wchar.h): Likewise.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• lib/stddef.in.h

• /* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues.
  
     Copyright (C) 2009 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 2, 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.  */
  
  /*
   * POSIX 2008 <stddef.h> for platforms that have issues.
   * <http://www.opengroup.org/susv3xbd/stddef.h.html>
   */
  
  #if __GNUC__ >= 3
  @PRAGMA_SYSTEM_HEADER@
  #endif
  
  #if defined __need_wchar_t || defined __need_size_t  \
    || defined __need_ptrdiff_t || defined __need_NULL \
    || defined __need_wint_t
  /* Special invocation convention inside gcc header files.  In
     particular, gcc provides a version of <stddef.h> that blindly
     redefines NULL even when __need_wint_t was defined, even though
     wint_t is not normally provided by <stddef.h>.  Hence, we must
     remember if special invocation has ever been used to obtain wint_t,
     in which case we need to clean up NULL yet again.  */
  
  # if !(defined _GL_STDDEF_H && defined _GL_STDDEF_WINT_T)
  #  ifdef __need_wint_t
  #   undef _GL_STDDEF_H
  #   define _GL_STDDEF_WINT_T
  #  endif
  #  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
  # endif
  
  #else
  /* Normal invocation convention.  */
  
  # ifndef _GL_STDDEF_H
  
  /* The include_next requires a split double-inclusion guard.  */
  
  #  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
  
  #  ifndef _GL_STDDEF_H
  #   define _GL_STDDEF_H
  
  /* On NetBSD 5.0, the definition of NULL lacks proper parentheses.  */
  #if @REPLACE_NULL@
  # undef NULL
  # ifdef __cplusplus
     /* ISO C++ says that the macro NULL must expand to an integer constant
        expression, hence '((void *) 0)' is not allowed in C++.  */
  #  if __GNUG__ >= 3
      /* GNU C++ has a __null macro that behaves like an integer ('int' or
         'long') but has the same size as a pointer.  Use that, to avoid
         warnings.  */
  #   define NULL __null
  #  else
  #   define NULL 0L
  #  endif
  # else
  #  define NULL ((void *) 0)
  # endif
  #endif
  
  /* Some platforms lack wchar_t.  */
  #if !@HAVE_WCHAR_T@
  # define wchar_t int
  #endif
  
  #  endif /* _GL_STDDEF_H */
  # endif /* _GL_STDDEF_H */
  #endif /* __need_XXX */
  

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