mdw@git.distorted.org.uk Git - adns/blob - acconfig.h

   1 /*
   2  * acconfig.h
   3  * input file for autoheader/autoconf/configure: extra stuff for config.h
   4  */
   5 /*
   6  *  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2, or (at your option)
  11  *  any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software Foundation,
  20  *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 /* Define if function attributes a la GCC 2.5 and higher are available.  */
  24 #undef HAVE_GNUC25_ATTRIB
  25
  26 /* Define if constant functions a la GCC 2.5 and higher are available.  */
  27 #undef HAVE_GNUC25_CONST
  28
  29 /* Define if nonreturning functions a la GCC 2.5 and higher are available.  */
  30 #undef HAVE_GNUC25_NORETURN
  31
  32 /* Define if printf-format argument lists a la GCC are available.  */
  33 #undef HAVE_GNUC25_PRINTFFORMAT
  34
  35 @BOTTOM@
  36
  37 /* Use the definitions: */
  38
  39 #ifdef HAVE_POLL
  40 #include <sys/poll.h>
  41 #else
  42 struct pollfd { int fd; short events; short revents; };
  43 #define POLLIN  1
  44 #define POLLPRI 2
  45 #define POLLOUT 4
  46 #endif
  47
  48 /* GNU C attributes. */
  49 #ifndef FUNCATTR
  50 #ifdef HAVE_GNUC25_ATTRIB
  51 #define FUNCATTR(x) __attribute__(x)
  52 #else
  53 #define FUNCATTR(x)
  54 #endif
  55 #endif
  56
  57 /* GNU C printf formats, or null. */
  58 #ifndef ATTRPRINTF
  59 #ifdef HAVE_GNUC25_PRINTFFORMAT
  60 #define ATTRPRINTF(si,tc) format(printf,si,tc)
  61 #else
  62 #define ATTRPRINTF(si,tc)
  63 #endif
  64 #endif
  65 #ifndef PRINTFFORMAT
  66 #define PRINTFFORMAT(si,tc) FUNCATTR((ATTRPRINTF(si,tc)))
  67 #endif
  68
  69 /* GNU C nonreturning functions, or null. */
  70 #ifndef ATTRNORETURN
  71 #ifdef HAVE_GNUC25_NORETURN
  72 #define ATTRNORETURN noreturn
  73 #else
  74 #define ATTRNORETURN
  75 #endif
  76 #endif
  77 #ifndef NONRETURNING
  78 #define NONRETURNING FUNCATTR((ATTRNORETURN))
  79 #endif
  80
  81 /* Combination of both the above. */
  82 #ifndef NONRETURNPRINTFFORMAT
  83 #define NONRETURNPRINTFFORMAT(si,tc) FUNCATTR((ATTRPRINTF(si,tc),ATTRNORETURN))
  84 #endif
  85
  86 /* GNU C constant functions, or null. */
  87 #ifndef ATTRCONST
  88 #ifdef HAVE_GNUC25_CONST
  89 #define ATTRCONST const
  90 #else
  91 #define ATTRCONST
  92 #endif
  93 #endif
  94 #ifndef CONSTANT
  95 #define CONSTANT FUNCATTR((ATTRCONST))
  96 #endif