cares-functions.m4

#***************************************************************************
# $Id$
#
# Copyright (C) 2008 - 2009 by Daniel Stenberg et al
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
# that the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission.  M.I.T. makes no representations about the
# suitability of this software for any purpose.  It is provided "as is"
# without express or implied warranty.
#
#***************************************************************************

# File version for 'aclocal' use. Keep it a single number.
# serial 28


dnl CARES_INCLUDES_ARPA_INET
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when arpa/inet.h is to be included.

AC_DEFUN([CARES_INCLUDES_ARPA_INET], [
cares_includes_arpa_inet="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#  include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#  include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#  include <arpa/inet.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h sys/socket.h netinet/in.h arpa/inet.h,
    [], [], [$cares_includes_arpa_inet])
])


dnl CARES_INCLUDES_FCNTL
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when fcntl.h is to be included.

AC_DEFUN([CARES_INCLUDES_FCNTL], [
cares_includes_fcntl="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
#  include <fcntl.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h unistd.h fcntl.h,
    [], [], [$cares_includes_fcntl])
])


dnl CARES_INCLUDES_NETDB
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when netdb.h is to be included.

AC_DEFUN([CARES_INCLUDES_NETDB], [
cares_includes_netdb="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_NETDB_H
#  include <netdb.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h netdb.h,
    [], [], [$cares_includes_netdb])
])


dnl CARES_INCLUDES_STDLIB
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when stdlib.h is to be included.

AC_DEFUN([CARES_INCLUDES_STDLIB], [
cares_includes_stdlib="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_STDLIB_H
#  include <stdlib.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h stdlib.h,
    [], [], [$cares_includes_stdlib])
])


dnl CARES_INCLUDES_STRING
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when string(s).h is to be included.

AC_DEFUN([CARES_INCLUDES_STRING], [
cares_includes_string="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_STRING_H
#  include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#  include <strings.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h string.h strings.h,
    [], [], [$cares_includes_string])
])


dnl CARES_INCLUDES_STROPTS
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when stropts.h is to be included.

AC_DEFUN([CARES_INCLUDES_STROPTS], [
cares_includes_stropts="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#  include <sys/socket.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#  include <sys/ioctl.h>
#endif
#ifdef HAVE_STROPTS_H
#  include <stropts.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h unistd.h sys/socket.h sys/ioctl.h stropts.h,
    [], [], [$cares_includes_stropts])
])


dnl CARES_INCLUDES_SYS_SOCKET
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when sys/socket.h is to be included.

AC_DEFUN([CARES_INCLUDES_SYS_SOCKET], [
cares_includes_sys_socket="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#  include <sys/socket.h>
#endif
/* includes end */"
  AC_CHECK_HEADERS(
    sys/types.h sys/socket.h,
    [], [], [$cares_includes_sys_socket])
])


dnl CARES_INCLUDES_SYS_UIO
dnl -------------------------------------------------
dnl Set up variable with list of headers that must be
dnl included when sys/uio.h is to be included.

AC_DEFUN([CARES_INCLUDES_SYS_UIO], [
cares_includes_sys_uio="\
/* includes start */
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif