1  /*
       2   * custom.h
       3   *
       4   * This file is for use on systems where Autoconf isn't quite able to
       5   * get things right. It is appended to the bottom of config.h by configure,
       6   * in order to override definitions from Autoconf that are erroneous. See
       7   * the manual for more information.
       8   *
       9   * If you make additions to this file for your system, please send me
      10   * the information, to arnold@skeeve.com.
      11   */
      12  
      13  /*
      14   * Copyright (C) 1995-2004, 2008, 2009, 2011, 2016, 2018-2023,
      15   * the Free Software Foundation, Inc.
      16   *
      17   * This file is part of GAWK, the GNU implementation of the
      18   * AWK Programming Language.
      19   *
      20   * GAWK is free software; you can redistribute it and/or modify
      21   * it under the terms of the GNU General Public License as published by
      22   * the Free Software Foundation; either version 3 of the License, or
      23   * (at your option) any later version.
      24   *
      25   * GAWK is distributed in the hope that it will be useful,
      26   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      27   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      28   * GNU General Public License for more details.
      29   *
      30   * You should have received a copy of the GNU General Public License
      31   * along with this program; if not, write to the Free Software
      32   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
      33   */
      34  
      35  /* for VMS POSIX, from Pat Rankin, r.pat.rankin@gmail.com */
      36  #ifdef VMS_POSIX
      37  #undef VMS
      38  #include "vms/redirect.h"
      39  #endif
      40  
      41  /* OpenVMS has some definitions in fp.h that should be in math.h */
      42  /* From John Malmberg, wb8tyw@qsl.net */
      43  #ifdef __VMS
      44  #include <fp.h>
      45  /* isnan () macro is broken */
      46  #undef isnan
      47  /* VMS has POSIX confirming limits.h */
      48  #ifndef _REGEX_INCLUDE_LIMITS_H
      49  #define _REGEX_INCLUDE_LIMITS_H 1
      50  #endif
      51  #ifndef _GNU_SOURCE
      52  #define _GNU_SOURCE 1
      53  #endif /* _GNU_SOURCE */
      54  #ifndef SIZE_MAX
      55  #define SIZE_MAX (__UINT32_MAX)
      56  #endif /* SIZE_MAX */
      57  #define ULONG_WIDTH 32
      58  #ifndef __VAX
      59  #ifndef ULLONG_MAX
      60  #define ULLONG_MAX __UINT64_MAX
      61  #endif /* ULLONG_MAX */
      62  #endif /* __VAX */
      63  #ifndef HAVE_STDINT_H
      64  typedef char int_least8_t;
      65  typedef unsigned char uint_least8_t;
      66  typedef short int_least16_t;
      67  typedef unsigned short uint_least16_t;
      68  typedef unsigned long uint_fast32_t;
      69  typedef long int_fast32_t;
      70  #ifndef __VAX
      71  typedef long long int_fast64_t;
      72  typedef unsigned long long uint_fast64_t;
      73  #endif /* __VAX */
      74  #endif
      75  /* All currently supported OpenVMS compilers appear to have HAVE_C_BOOL.
      76     The generic config_h.com is used instead of configure is not able to
      77     understand the extra code in config.h.in so it comments it out.
      78     This code is needed to activate the stdbool.h
      79  */
      80  #if (defined(HAVE_C_BOOL) && defined(HAVE_STDBOOL_H))
      81  #include <stdbool.h>
      82  #endif
      83  #endif /* __VMS */
      84  
      85  
      86  /* For QNX, based on submission from Michael Hunter, mphunter@qnx.com */
      87  #ifdef __QNX__
      88  #define GETPGRP_VOID	1
      89  #endif
      90  
      91  /* For MacOS X, which is almost BSD Unix */
      92  #ifdef __APPLE__
      93  #define HAVE_MKTIME	1
      94  #endif
      95  
      96  /* For HP/UX with gcc */
      97  #if defined(hpux) || defined(_HPUX_SOURCE)
      98  #undef HAVE_TZSET
      99  #define HAVE_TZSET 1
     100  #define _TZSET 1
     101  #endif
     102  
     103  #if defined(_AIX)
     104  #define _XOPEN_SOURCE_EXTENDED 1
     105  #endif
     106  
     107  #ifdef __MVS__
     108  #ifndef _REGEX_INCLUDE_LIMITS_H
     109  #define _REGEX_INCLUDE_LIMITS_H 1
     110  #endif
     111  #endif
     112  
     113  /* Junk for dfa.[ch] */
     114  /* The __pure__ attribute was added in gcc 2.96.  */
     115  #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
     116  # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
     117  #else
     118  # define _GL_ATTRIBUTE_PURE /* empty */
     119  #endif
     120  #define FLEXIBLE_ARRAY_MEMBER	1
     121  #define xreallocarray xnrealloc
     122  #define xizalloc xzalloc
     123  #define xicalloc xcalloc
     124  #define xirealloc xrealloc
     125  #define ximalloc xmalloc
     126  
     127  #ifdef USE_PERSISTENT_MALLOC
     128  #include <stdlib.h>
     129  #include "pma.h"
     130  #define malloc	pma_malloc
     131  #define calloc	pma_calloc
     132  #define realloc	pma_realloc
     133  #define free	pma_free
     134  #else /* ! USE_PERSISTENT_MALLOC */
     135  #define pma_init(verbose, file)	0
     136  #define pma_get_root()	NULL
     137  #define pma_set_root(rootptr)	/* nothing */
     138  #define pma_errno 0
     139  #endif /* ! USE_PERSISTENT_MALLOC */
     140  
     141  #ifndef HAVE_STRSIGNAL
     142  char * strsignal(int signal);
     143  #endif /* ! HAVE_STRSIGNAL */