memalloc.h

   1 /* memalloc.h -- consolidate code for including alloca.h or malloc.h and
   2    defining alloca. */
   3
   4 /* Copyright (C) 1993 Free Software Foundation, Inc.
   5
   6    This file is part of GNU Bash, the Bourne Again SHell.
   7
   8    Bash is free software; you can redistribute it and/or modify it under
   9    the terms of the GNU General Public License as published by the Free
  10    Software Foundation; either version 2, or (at your option) any later
  11    version.
  12
  13    Bash is distributed in the hope that it will be useful, but WITHOUT ANY
  14    WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16    for more details.
  17
  18    You should have received a copy of the GNU General Public License along
  19    with Bash; see the file COPYING.  If not, write to the Free Software
  20    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
  21
  22 #if !defined (_MEMALLOC_H_)
  23 #  define _MEMALLOC_H_
  24
  25 #if defined (sparc) && defined (sun) && !defined (HAVE_ALLOCA_H)
  26 #  define HAVE_ALLOCA_H
  27 #endif
  28
  29 #if defined (__GNUC__) && !defined (HAVE_ALLOCA)
  30 #  define HAVE_ALLOCA
  31 #endif
  32
  33 #if defined (HAVE_ALLOCA_H) && !defined (HAVE_ALLOCA)
  34 #  define HAVE_ALLOCA
  35 #endif /* HAVE_ALLOCA_H && !HAVE_ALLOCA */
  36
  37 #if defined (__GNUC__) && !defined (C_ALLOCA)
  38 #  undef alloca
  39 #  define alloca __builtin_alloca
  40 #else /* !__GNUC__ || C_ALLOCA */
  41 #  if defined (HAVE_ALLOCA_H) && !defined (C_ALLOCA)
  42 #    if defined (IBMESA)
  43 #      include <malloc.h>
  44 #    else /* !IBMESA */
  45 #      include <alloca.h>
  46 #    endif /* !IBMESA */
  47 #  else  /* !HAVE_ALLOCA_H || C_ALLOCA */
  48 #    if defined (__hpux) && defined (__STDC__) && !defined (alloca)
  49 extern void *alloca ();
  50 #    else
  51 #      if !defined (alloca)
  52 extern char *alloca ();
  53 #      endif /* !alloca */
  54 #    endif /* !__hpux || !__STDC__ && !alloca */
  55 #  endif /* !HAVE_ALLOCA_H || C_ALLOCA */
  56 #endif /* !__GNUC__ || C_ALLOCA */
  57
  58 #endif /* _MEMALLOC_H_ */