# Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
# Copyright (C) 2001, 2003  Internet Software Consortium.
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.

AC_REVISION(Revision: 1.145)

AC_INIT(resolv/herror.c)
AC_PREREQ(2.13)

AC_CONFIG_HEADER(config.h)

AC_CANONICAL_HOST

AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_PROG_INSTALL

AC_SUBST(STD_CINCLUDES)
AC_SUBST(STD_CDEFINES)
AC_SUBST(STD_CWARNINGS)
AC_SUBST(CCOPT)

AC_PATH_PROG(AR, ar)
ARFLAGS="cruv"
AC_SUBST(AR)
AC_SUBST(ARFLAGS)

AC_PATH_PROG(TBL, tbl)
AC_SUBST(TBL)

AC_PATH_PROG(NROFF, nroff)
AC_SUBST(NROFF)

AC_PATH_PROG(SED, sed)
AC_SUBST(SED)

AC_PATH_PROG(TR, tr)
AC_SUBST(TR)

# The POSIX ln(1) program.  Non-POSIX systems may substitute
# "copy" or something.
LN=ln
AC_SUBST(LN)

case "$AR" in
	"")
		AC_MSG_ERROR([
ar program not found.  Please fix your PATH to include the directory in
which ar resides, or set AR in the environment with the full path to ar.
])

		;;
esac

#
# Etags.
#
AC_PATH_PROGS(ETAGS, etags emacs-etags)

#
# Some systems, e.g. RH7, have the Exuberant Ctags etags instead of
# GNU emacs etags, and it requires the -L flag.
#
if test "X$ETAGS" != "X"; then
	AC_MSG_CHECKING(for Exuberant Ctags etags)
	if $ETAGS --version 2>&1 | grep 'Exuberant Ctags' >/dev/null 2>&1; then
		AC_MSG_RESULT(yes)
		ETAGS="$ETAGS -L"
	else
		AC_MSG_RESULT(no)
	fi
fi
AC_SUBST(ETAGS)

#
# Perl is optional; it is used only by some of the system test scripts.
#
AC_PATH_PROGS(PERL, perl5 perl)
AC_SUBST(PERL)

#
# isc/list.h and others clash with BIND 9 and system header files.
# Install into non-shared directory.
#
case "$includedir" in
	'${prefix}/include')
		includedir='${prefix}/include/bind'
		;;
esac
#
# -lbind can clash with system version.  Install into non-shared directory.
#
case "$libdir" in
	'${prefix}/lib')
		libdir='${prefix}/lib/bind'
		;;
esac

#
# Make sure INSTALL uses an absolute path, else it will be wrong in all
# Makefiles, since they use make/rules.in and INSTALL will be adjusted by
# configure based on the location of the file where it is substituted.
# Since in BIND9 INSTALL is only substituted into make/rules.in, an immediate
# subdirectory of install-sh, This relative path will be wrong for all
# directories more than one level down from install-sh.
#
case "$INSTALL" in
	/*)
                ;;
        *)
                #
                # Not all systems have dirname.
                #
                changequote({, })
                ac_dir="`echo $INSTALL | sed 's%/[^/]*$%%'`"
                changequote([, ])

                ac_prog="`echo $INSTALL | sed 's%.*/%%'`"
                test "$ac_dir" = "$ac_prog" && ac_dir=.
                test -d "$ac_dir" && ac_dir="`(cd \"$ac_dir\" && pwd)`"
                INSTALL="$ac_dir/$ac_prog"
                ;;
esac

#
# On these hosts, we really want to use cc, not gcc, even if it is
# found.  The gcc that these systems have will not correctly handle
# pthreads.
#
# However, if the user sets $CC to be something, let that override
# our change.
#
if test "X$CC" = "X" ; then
	case "$host" in
		*-dec-osf*)
			CC="cc"
			;;
		*-solaris*)
                        # Use Sun's cc if it is available, but watch
                        # out for /usr/ucb/cc; it will never be the right
                        # compiler to use.
                        #
                        # If setting CC here fails, the AC_PROG_CC done
                        # below might still find gcc.
			IFS="${IFS=	}"; ac_save_ifs="$IFS"; IFS=":"
			for ac_dir in $PATH; do
				test -z "$ac_dir" && ac_dir=.
				case "$ac_dir" in
				/usr/ucb)
					# exclude
					;;
				*)
					if test -f "$ac_dir/cc"; then
						CC="$ac_dir/cc"
						break
					fi
					;;
				esac
			done
			IFS="$ac_save_ifs"
			;;
		*-hp-hpux*)
			CC="cc"
			;;
		mips-sgi-irix*)
			CC="cc"
			;;
	esac
fi


AC_PROG_CC

AC_HEADER_STDC

AC_CHECK_HEADERS(fcntl.h db.h paths.h sys/time.h unistd.h sys/sockio.h sys/select.h sys/timers.h stropts.h memory.h)

AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_CHECK_TYPE(ssize_t,signed)
AC_CHECK_TYPE(uintptr_t,unsigned long)
AC_HEADER_TIME

#
# check for clock_gettime() in librt
#
AC_CHECK_LIB(rt, clock_gettime)

#
# check for MD5Init() in libmd5
#
AC_CHECK_LIB(md5, MD5Init)

#
# check if we need to #include sys/select.h explicitly
#
case $ac_cv_header_unistd_h in
yes)
AC_MSG_CHECKING(if unistd.h defines fd_set)
AC_TRY_COMPILE([
#include <unistd.h>],
[fd_set read_set; return (0);],
	[AC_MSG_RESULT(yes)
	 ISC_PLATFORM_NEEDSYSSELECTH="#undef ISC_PLATFORM_NEEDSYSSELECTH"
	 ],
	[AC_MSG_RESULT(no)
	case ac_cv_header_sys_select_h in
	yes)
         ISC_PLATFORM_NEEDSYSSELECTH="#define ISC_PLATFORM_NEEDSYSSELECTH 1"
		;;
	no)
		AC_MSG_ERROR([need either working unistd.h or sys/select.h])
		;;
	esac
	])
	;;
no)
	case ac_cv_header_sys_select_h in
	yes)
             ISC_PLATFORM_NEEDSYSSELECTH="#define ISC_PLATFORM_NEEDSYSSELECTH 1"
		;;
	no)
		AC_MSG_ERROR([need either unistd.h or sys/select.h])
		;;
	esac
	;;
esac
AC_SUBST(ISC_PLATFORM_NEEDSYSSELECTH)

#
# Find the machine's endian flavor.
#
AC_C_BIGENDIAN

AC_ARG_WITH(irs-gr,[  --with-irs-gr		Build with WANT_IRS_GR],
want_irs_gr="$withval", want_irs_gr="no")
case "$want_irs_gr" in
yes) WANT_IRS_GR="#define WANT_IRS_GR 1"
     WANT_IRS_GR_OBJS="\${WANT_IRS_GR_OBJS}"
	;;
*) WANT_IRS_GR="#undef WANT_IRS_GR" WANT_IRS_GR_OBJS="";;
esac
AC_SUBST(WANT_IRS_GR)
AC_SUBST(WANT_IRS_GR_OBJS)

AC_ARG_WITH(irs-pw,[  --with-irs-pw		Build with WANT_IRS_PW],
want_irs_pw="$withval", want_irs_pw="no")
case "$want_irs_pw" in
yes) WANT_IRS_PW="#define WANT_IRS_PW 1"
     WANT_IRS_PW_OBJS="\${WANT_IRS_PW_OBJS}";;
*) WANT_IRS_PW="#undef WANT_IRS_PW" WANT_IRS_PW_OBJS="";;
esac
AC_SUBST(WANT_IRS_PW)
AC_SUBST(WANT_IRS_PW_OBJS)

AC_ARG_WITH(irs-nis,[  --with-irs-nis	Build with WANT_IRS_NIS],
want_irs_nis="$withval", want_irs_nis="no")
case "$want_irs_nis" in
yes)
	WANT_IRS_NIS="#define WANT_IRS_NIS 1"
	WANT_IRS_NIS_OBJS="\${WANT_IRS_NIS_OBJS}"
	case "$want_irs_gr" in
	yes)
		WANT_IRS_NISGR_OBJS="\${WANT_IRS_NISGR_OBJS}";;
	*)
		WANT_IRS_NISGR_OBJS="";;
	esac
	case "$want_irs_pw" in
	yes)
		WANT_IRS_NISPW_OBJS="\${WANT_IRS_NISPW_OBJS}";;
	*)
		WANT_IRS_NISPW_OBJS="";;
	esac
	;;
*)
	WANT_IRS_NIS="#undef WANT_IRS_NIS"
	WANT_IRS_NIS_OBJS=""
	WANT_IRS_NISGR_OBJS=""
	WANT_IRS_NISPW_OBJS="";;
esac
AC_SUBST(WANT_IRS_NIS)
AC_SUBST(WANT_IRS_NIS_OBJS)
AC_SUBST(WANT_IRS_NISGR_OBJS)
AC_SUBST(WANT_IRS_NISPW_OBJS)
AC_TRY_RUN([
#ifdef HAVE_DB_H
int have_db_h = 1;
#else
int have_db_h = 0;
#endif
main() { return(!have_db_h); }
],
WANT_IRS_DBPW_OBJS="\${WANT_IRS_DBPW_OBJS}"
,
WANT_IRS_DBPW_OBJS=""
,
WANT_IRS_DBPW_OBJS=""
)
AC_SUBST(WANT_IRS_DBPW_OBJS)

#
# was --with-randomdev specified?
#
AC_MSG_CHECKING(for random device)
AC_ARG_WITH(randomdev,
[  --with-randomdev=PATH Specify path for random device],
    use_randomdev="$withval", use_randomdev="unspec")

case "$use_randomdev" in
	unspec)
		case "$host" in
			*-openbsd*)
				devrandom=/dev/srandom
				;;
			*)
				devrandom=/dev/random
				;;
		esac
		AC_MSG_RESULT($devrandom)
		AC_CHECK_FILE($devrandom,
			      AC_DEFINE_UNQUOTED(PATH_RANDOMDEV,
						 "$devrandom"),)
		;;
	yes)
		AC_MSG_ERROR([--with-randomdev must specify a path])
		;;
	*)
		AC_DEFINE_UNQUOTED(PATH_RANDOMDEV, "$use_randomdev")
		AC_MSG_RESULT(using "$use_randomdev")
		;;
esac

sinclude(./config.threads.in)dnl

if $use_threads
then
	if test "X$GCC" = "Xyes"; then
		case "$host" in
		*-freebsd*)
			CC="$CC -pthread"
			CCOPT="$CCOPT -pthread"
			STD_CDEFINES="$STD_CDEFINES -D_THREAD_SAFE"
			;;
		*-openbsd*)
			CC="$CC -pthread"
			CCOPT="$CCOPT -pthread"
			;;
		*-solaris*)
			LIBS="$LIBS -lthread"
			;;
		*-ibm-aix*)
			STD_CDEFINES="$STD_CDEFINES -D_THREAD_SAFE"
			;;
		esac
	else
		case $host in
		*-dec-osf*)
			CC="$CC -pthread"
			CCOPT="$CCOPT -pthread"
			;;
		*-solaris*)
			CC="$CC -mt"
			CCOPT="$CCOPT -mt"
			;;
		*-ibm-aix*)
			STD_CDEFINES="$STD_CDEFINES -D_THREAD_SAFE"
			;;
		*-UnixWare*)
			CC="$CC -Kthread"
			CCOPT="$CCOPT -Kthread"
			;;
		esac
	fi
	AC_DEFINE(_REENTRANT)
	ALWAYS_DEFINES="-D_REENTRANT"
	DO_PTHREADS="#define DO_PTHREADS 1"
	WANT_IRS_THREADSGR_OBJS="\${WANT_IRS_THREADSGR_OBJS}"
	WANT_IRS_THREADSPW_OBJS="\${WANT_IRS_THREADSPW_OBJS}"
	case $host in
	ia64-hp-hpux11.*)
		WANT_IRS_THREADS_OBJS="";;
	*)
		WANT_IRS_THREADS_OBJS="\${WANT_IRS_THREADS_OBJS}";;
	esac
	WANT_THREADS_OBJS="\${WANT_THREADS_OBJS}"
	thread_dir=pthreads

	#
	# We'd like to use sigwait() too
	#
	AC_CHECK_FUNC(sigwait,
		      AC_DEFINE(HAVE_SIGWAIT),
		      AC_CHECK_LIB(c, sigwait,
		      AC_DEFINE(HAVE_SIGWAIT),
		      AC_CHECK_LIB(pthread, sigwait,
				   AC_DEFINE(HAVE_SIGWAIT),
				   AC_CHECK_LIB(pthread, _Psigwait,
					        AC_DEFINE(HAVE_SIGWAIT),))))

	AC_CHECK_FUNC(pthread_attr_getstacksize,
		      AC_DEFINE(HAVE_PTHREAD_ATTR_GETSTACKSIZE),)

	#
	# Additional OS-specific issues related to pthreads and sigwait.
	#
	case "$host" in
		#
		# One more place to look for sigwait.
		#
		*-freebsd*)
			AC_CHECK_LIB(c_r, sigwait, AC_DEFINE(HAVE_SIGWAIT),)
			;;
		#
		# BSDI 3.0 through 4.0.1 needs pthread_init() to be
		# called before certain pthreads calls.	 This is deprecated
		# in BSD/OS 4.1.
		#
		*-bsdi3.*|*-bsdi4.0*)
			AC_DEFINE(NEED_PTHREAD_INIT)
			;;
		#
		# LinuxThreads requires some changes to the way we
		# deal with signals.
		#
		*-linux*)
			AC_DEFINE(HAVE_LINUXTHREADS)
			;;
		#
		# Ensure the right sigwait() semantics on Solaris and make
		# sure we call pthread_setconcurrency.
		#
		*-solaris*)
			AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
			AC_CHECK_FUNC(pthread_setconcurrency,
				      AC_DEFINE(CALL_PTHREAD_SETCONCURRENCY))
			AC_DEFINE(POSIX_GETPWUID_R)
			AC_DEFINE(POSIX_GETPWNAM_R)
			AC_DEFINE(POSIX_GETGRGID_R)
			AC_DEFINE(POSIX_GETGRNAM_R)
			;;
		*hpux11*)
			AC_DEFINE(NEED_ENDNETGRENT_R)
			AC_DEFINE(_PTHREADS_DRAFT4)
			;;
		#
		# UnixWare does things its own way.
		#
		*-UnixWare*)
			AC_DEFINE(HAVE_UNIXWARE_SIGWAIT)
			;;
	esac

	#
	# Look for sysconf to allow detection of the number of processors.
	#
	AC_CHECK_FUNC(sysconf, AC_DEFINE(HAVE_SYSCONF),)

else
	ALWAYS_DEFINES=""
	DO_PTHREADS="#undef DO_PTHREADS"
	WANT_IRS_THREADSGR_OBJS=""
	WANT_IRS_THREADSPW_OBJS=""
	WANT_IRS_THREADS_OBJS=""
	WANT_THREADS_OBJS=""
	thread_dir=nothreads
fi

AC_SUBST(ALWAYS_DEFINES)
AC_SUBST(DO_PTHREADS)
AC_SUBST(WANT_IRS_THREADSGR_OBJS)
AC_SUBST(WANT_IRS_THREADSPW_OBJS)
AC_SUBST(WANT_IRS_THREADS_OBJS)
AC_SUBST(WANT_THREADS_OBJS)

AC_CHECK_FUNC(strlcat, AC_DEFINE(HAVE_STRLCAT))
AC_CHECK_FUNC(memmove, AC_DEFINE(HAVE_MEMMOVE))
AC_CHECK_FUNC(memchr, AC_DEFINE(HAVE_MEMCHR))
AC_CHECK_FUNC(strtoul, , AC_DEFINE(NEED_STRTOUL))

AC_CHECK_FUNC(if_nametoindex,
	[USE_IFNAMELINKID="#define USE_IFNAMELINKID 1"],
	[USE_IFNAMELINKID="#undef USE_IFNAMELINKID"])
AC_SUBST(USE_IFNAMELINKID)

ISC_THREAD_DIR=$thread_dir
AC_SUBST(ISC_THREAD_DIR)

AC_CHECK_FUNC(daemon,
[DAEMON_OBJS="" NEED_DAEMON="#undef NEED_DAEMON"]
,
[DAEMON_OBJS="\${DAEMON_OBJS}" NEED_DAEMON="#define NEED_DAEMON 1"]
)
AC_SUBST(DAEMON_OBJS)
AC_SUBST(NEED_DAEMON)

AC_CHECK_FUNC(strsep,
[STRSEP_OBJS="" NEED_STRSEP="#undef NEED_STRSEP"]
,
[STRSEP_OBJS="\${STRSEP_OBJS}" NEED_STRSEP="#define NEED_STRSEP 1"]
)
AC_SUBST(STRSEP_OBJS)
AC_SUBST(NEED_STRSEP)

AC_CHECK_FUNC(strerror, [NEED_STRERROR="#undef NEED_STRERROR"],
[NEED_STRERROR="#define NEED_STRERROR 1"])
AC_SUBST(NEED_STRERROR)

if test -n "$NEED_STRERROR"
then
	AC_MSG_CHECKING([for extern char * sys_errlist[]])
	AC_TRY_LINK([ extern int sys_nerr; extern char *sys_errlist[]; ],
		    [ const char *p = sys_errlist[0]; ],
		    AC_MSG_RESULT(yes)
		    AC_DEFINE(USE_SYSERROR_LIST),
		    AC_MSG_RESULT(no))
fi

#
# flockfile is usually provided by pthreads, but we may want to use it
# even if compiled with --disable-threads.
#
AC_CHECK_FUNC(flockfile, AC_DEFINE(HAVE_FLOCKFILE),)

# 
# Indicate what the final decision was regarding threads.
#
AC_MSG_CHECKING(whether to build with threads)
if $use_threads; then
	AC_MSG_RESULT(yes)
else
	AC_MSG_RESULT(no)
fi

# 
# End of pthreads stuff.
#

#
# Additional compiler settings.
#
MKDEPCC="$CC"
MKDEPCFLAGS="-M"
IRIX_DNSSEC_WARNINGS_HACK=""

if test "X$GCC" = "Xyes"; then
        AC_MSG_CHECKING(if "$CC" supports -fno-strict-aliasing)
        SAVE_CFLAGS=$CFLAGS
        CFLAGS=-fno-strict-aliasing
        AC_TRY_COMPILE(,, [FNOSTRICTALIASING=yes],[FNOSTRICTALIASING=no])
        CFLAGS=$SAVE_CFLAGS
        if test "$FNOSTRICTALIASING" = "yes"; then
                AC_MSG_RESULT(yes)
		STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith -fno-strict-aliasing"
        else
                AC_MSG_RESULT(no)
		STD_CWARNINGS="$STD_CWARNINGS -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat -Wpointer-arith"
        fi
else
	case $host in
	*-dec-osf*)
		CC="$CC -std"
		CCOPT="$CCOPT -std"
		MKDEPCC="$CC"
		;;
	*-hp-hpux*)
		CC="$CC -Ae -z"
		# The version of the C compiler that constantly warns about
                # 'const' as well as alignment issues is unfortunately not
                # able to be discerned via the version of the operating
                # system, nor does cc have a version flag.
		case "`$CC +W 123 2>&1`" in
		*Unknown?option*)
			STD_CWARNINGS="+w1"
			;;
		*)
			# Turn off the pointlessly noisy warnings.
			STD_CWARNINGS="+w1 +W 474,530,2193,2236"
			;;
		esac
		CCOPT="$CCOPT -Ae -z"
		LIBS="-Wl,+vnocompatwarnings $LIBS"
MKDEPPROG='cc -Ae -E -Wp,-M >/dev/null 2>&1 | awk '"'"'BEGIN {colon=0; rec="";} { for (i = 0 ; i < NF; i++) { if (colon && a[$i]) continue; if ($i == "\\") continue; if (!colon) { rec =  $i continue; } if ($i == ":") { rec = rec " :" colon = 1 continue; } if (length(rec $i) > 76) { print rec " \\"; rec = "\t" $i; a[$i] = 1; } else { rec = rec " " $i a[$i] = 1; } } } END {print rec}'"'"' >>$TMP'
		MKDEPPROG='cc -Ae -E -Wp,-M >/dev/null 2>>$TMP'
		;;
	*-sgi-irix*)
		STD_CWARNINGS="-fullwarn -woff 1209"
		#
		# Silence more than 250 instances of
		#   "prototyped function redeclared without prototype"
		# and 11 instances of
		#   "variable ... was set but never used"
		# from lib/dns/sec/openssl.
		#
		IRIX_DNSSEC_WARNINGS_HACK="-woff 1692,1552"
		;;
	*-solaris*)
		MKDEPCFLAGS="-xM"
		;;
	*-UnixWare*)
		CC="$CC -w"
		;;
	esac
fi

#
# _GNU_SOURCE is needed to access the fd_bits field of struct fd_set, which
# is supposed to be opaque.
#
case $host in
	*linux*)
		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
		;;
esac

AC_SUBST(MKDEPCC)
AC_SUBST(MKDEPCFLAGS)
AC_SUBST(MKDEPPROG)
AC_SUBST(IRIX_DNSSEC_WARNINGS_HACK)

#
# NLS
#
AC_CHECK_FUNC(catgets, AC_DEFINE(HAVE_CATGETS),)

#
# -lxnet buys us one big porting headache...  standards, gotta love 'em.
#
# AC_CHECK_LIB(xnet, socket, ,
#    AC_CHECK_LIB(socket, socket)
#    AC_CHECK_LIB(nsl, inet_ntoa)
# )
#
# Use this for now, instead:
#
case "$host" in
	mips-sgi-irix*)
		;;
	ia64-hp-hpux11.*)
		AC_CHECK_LIB(socket, socket)
		AC_CHECK_LIB(nsl, inet_ntoa)
		;;
	*)
		AC_CHECK_LIB(d4r, gethostbyname_r)
		AC_CHECK_LIB(socket, socket)
		AC_CHECK_FUNC(inet_ntoa, [], AC_CHECK_LIB(nsl, inet_ntoa))
		;;
esac

#
# Purify support
#
AC_MSG_CHECKING(whether to use purify)
AC_ARG_WITH(purify,
	[  --with-purify[=PATH]	use Rational purify],
	use_purify="$withval", use_purify="no")

case "$use_purify" in
	no)
		;;
	yes)
		AC_PATH_PROG(purify_path, purify, purify)
		;;
	*)
		purify_path="$use_purify"
		;;
esac

case "$use_purify" in
	no)
		AC_MSG_RESULT(no)
		PURIFY=""
		;;
	*)
		if test -f $purify_path || test $purify_path = purify; then
			AC_MSG_RESULT($purify_path)
			PURIFYFLAGS="`echo $PURIFYOPTIONS`"
			PURIFY="$purify_path $PURIFYFLAGS"
		else
			AC_MSG_ERROR([$purify_path not found.

Please choose the proper path with the following command:

    configure --with-purify=PATH
])
		fi
		;;
esac

AC_SUBST(PURIFY)

#
# GNU libtool support
#
case $host in
sunos*)
    # Just set the maximum command line length for sunos as it otherwise
    # takes a exceptionally long time to work it out. Required for libtool.
    lt_cv_sys_max_cmd_len=4096;
    ;;
esac

AC_ARG_WITH(libtool,
	    [  --with-libtool	use GNU libtool (following indented options supported)],
	    use_libtool="$withval", use_libtool="no")

case $use_libtool in
	yes)
		AC_PROG_LIBTOOL
		O=lo
		A=la
		LIBTOOL_MKDEP_SED='s;\.o;\.lo;'
		LIBTOOL_MODE_COMPILE='--mode=compile'
		LIBTOOL_MODE_INSTALL='--mode=install'
		LIBTOOL_MODE_LINK='--mode=link'
		;;
	*)
		O=o
		A=a
		LIBTOOL=
		AC_SUBST(LIBTOOL)
		LIBTOOL_MKDEP_SED=
		LIBTOOL_MODE_COMPILE=
		LIBTOOL_MODE_INSTALL=
		LIBTOOL_MODE_LINK=
		;;
esac

#
# File name extension for static archive files, for those few places
# where they are treated differently from dynamic ones.
#
SA=a

AC_SUBST(O)
AC_SUBST(A)
AC_SUBST(SA)
AC_SUBST(LIBTOOL_MKDEP_SED)
AC_SUBST(LIBTOOL_MODE_COMPILE)
AC_SUBST(LIBTOOL_MODE_INSTALL)
AC_SUBST(LIBTOOL_MODE_LINK)

#
# Here begins a very long section to determine the system's networking
# capabilities.  The order of the tests is signficant.
#

#
# IPv6
#
AC_ARG_ENABLE(ipv6,
	[  --enable-ipv6		use IPv6 [default=autodetect]])

case "$enable_ipv6" in
	yes|''|autodetect)
		AC_DEFINE(WANT_IPV6)
		;;
	no)
		;;
esac

#
# We do the IPv6 compilation checking after libtool so that we can put
# the right suffix on the files.
#
AC_MSG_CHECKING(for IPv6 structures)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>],
[struct sockaddr_in6 sin6; return (0);],
	[AC_MSG_RESULT(yes)
	 found_ipv6=yes],
	[AC_MSG_RESULT(no)
	 found_ipv6=no])

#
# See whether IPv6 support is provided via a Kame add-on.
# This is done before other IPv6 linking tests to LIBS is properly set.
#
AC_MSG_CHECKING(for Kame IPv6 support)
AC_ARG_WITH(kame,
	[  --with-kame[=PATH]	use Kame IPv6 [default path /usr/local/v6]],
	use_kame="$withval", use_kame="no")

case "$use_kame" in
	no)
		;;
	yes)
		kame_path=/usr/local/v6
		;;
	*)
		kame_path="$use_kame"
		;;
esac

case "$use_kame" in
	no)
		AC_MSG_RESULT(no)
		;;
	*)
		if test -f $kame_path/lib/libinet6.a; then
			AC_MSG_RESULT($kame_path/lib/libinet6.a)
			LIBS="-L$kame_path/lib -linet6 $LIBS"
		else
			AC_MSG_ERROR([$kame_path/lib/libinet6.a not found.

Please choose the proper path with the following command:

    configure --with-kame=PATH
])
		fi
		;;
esac

#
# Whether netinet6/in6.h is needed has to be defined in isc/platform.h.
# Including it on Kame-using platforms is very bad, though, because
# Kame uses #error against direct inclusion.   So include it on only
# the platform that is otherwise broken without it -- BSD/OS 4.0 through 4.1.
# This is done before the in6_pktinfo check because that's what
# netinet6/in6.h is needed for.
#
changequote({, })
case "$host" in
*-bsdi4.[01]*)
	ISC_PLATFORM_NEEDNETINET6IN6H="#define ISC_PLATFORM_NEEDNETINET6IN6H 1"
	isc_netinet6in6_hack="#include <netinet6/in6.h>"
	;;
*)
	ISC_PLATFORM_NEEDNETINET6IN6H="#undef ISC_PLATFORM_NEEDNETINET6IN6H"
	isc_netinet6in6_hack=""
	;;
esac
changequote([, ])

#
# This is similar to the netinet6/in6.h issue.
#
case "$host" in
*-UnixWare*)
	ISC_PLATFORM_NEEDNETINETIN6H="#define ISC_PLATFORM_NEEDNETINETIN6H 1"
        ISC_PLATFORM_FIXIN6ISADDR="#define ISC_PLATFORM_FIXIN6ISADDR 1"
	isc_netinetin6_hack="#include <netinet/in6.h>"
	;;
*)
	ISC_PLATFORM_NEEDNETINETIN6H="#undef ISC_PLATFORM_NEEDNETINETIN6H"
        ISC_PLATFORM_FIXIN6ISADDR="#undef ISC_PLATFORM_FIXIN6ISADDR"
	isc_netinetin6_hack=""
	;;
esac

#
# Now delve deeper into the suitability of the IPv6 support.
#
case "$found_ipv6" in
	yes)
		HAS_INET6_STRUCTS="#define HAS_INET6_STRUCTS 1"

		AC_MSG_CHECKING(for in6_addr)
		AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
$isc_netinetin6_hack
$isc_netinet6in6_hack
],
[struct in6_addr in6; return (0);],
		[AC_MSG_RESULT(yes)
		 HAS_IN_ADDR6="#undef HAS_IN_ADDR6"
		 isc_in_addr6_hack=""],
		[AC_MSG_RESULT(no)
		 HAS_IN_ADDR6="#define HAS_IN_ADDR6 1"
		 isc_in_addr6_hack="#define in6_addr in_addr6"])

		AC_MSG_CHECKING(for in6addr_any)
		AC_TRY_LINK([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
$isc_netinetin6_hack
$isc_netinet6in6_hack
$isc_in_addr6_hack
],
		[struct in6_addr in6; in6 = in6addr_any; return (0);],
			[AC_MSG_RESULT(yes)
			 NEED_IN6ADDR_ANY="#undef NEED_IN6ADDR_ANY"],
			[AC_MSG_RESULT(no)
			 NEED_IN6ADDR_ANY="#define NEED_IN6ADDR_ANY 1"])

		AC_MSG_CHECKING(for sin6_scope_id in struct sockaddr_in6)
		AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
$isc_netinetin6_hack
$isc_netinet6in6_hack
],
		[struct sockaddr_in6 xyzzy; xyzzy.sin6_scope_id = 0; return (0);],
			[AC_MSG_RESULT(yes)
			 result="#define HAVE_SIN6_SCOPE_ID 1"],
			[AC_MSG_RESULT(no)
			 result="#undef HAVE_SIN6_SCOPE_ID"])
		HAVE_SIN6_SCOPE_ID="$result"

		AC_MSG_CHECKING(for in6_pktinfo)
		AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
$isc_netinetin6_hack
$isc_netinet6in6_hack
],
		[struct in6_pktinfo xyzzy; return (0);],
			[AC_MSG_RESULT(yes)
			 ISC_PLATFORM_HAVEIN6PKTINFO="#define ISC_PLATFORM_HAVEIN6PKTINFO 1"],
			[AC_MSG_RESULT(no -- disabling runtime ipv6 support)
			 ISC_PLATFORM_HAVEIN6PKTINFO="#undef ISC_PLATFORM_HAVEIN6PKTINFO"])
		;;
	no)
		HAS_INET6_STRUCTS="#undef HAS_INET6_STRUCTS"
		NEED_IN6ADDR_ANY="#undef NEED_IN6ADDR_ANY"
		ISC_PLATFORM_HAVEIN6PKTINFO="#undef ISC_PLATFORM_HAVEIN6PKTINFO"
		HAVE_SIN6_SCOPE_ID="#define HAVE_SIN6_SCOPE_ID 1"
		ISC_IPV6_H="ipv6.h"
		ISC_IPV6_O="ipv6.$O"
		ISC_ISCIPV6_O="unix/ipv6.$O"
		ISC_IPV6_C="ipv6.c"
		;;
esac

AC_MSG_CHECKING(for sockaddr_storage)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
],
[struct sockaddr_storage xyzzy; return (0);],
	[AC_MSG_RESULT(yes)
	 HAVE_SOCKADDR_STORAGE="#define HAVE_SOCKADDR_STORAGE 1"],
	[AC_MSG_RESULT(no)
	 HAVE_SOCKADDR_STORAGE="#undef HAVE_SOCKADDR_STORAGE"])

AC_SUBST(HAS_INET6_STRUCTS)
AC_SUBST(ISC_PLATFORM_NEEDNETINETIN6H)
AC_SUBST(ISC_PLATFORM_NEEDNETINET6IN6H)
AC_SUBST(HAS_IN_ADDR6)
AC_SUBST(NEED_IN6ADDR_ANY)
AC_SUBST(ISC_PLATFORM_HAVEIN6PKTINFO)
AC_SUBST(ISC_PLATFORM_FIXIN6ISADDR)
AC_SUBST(ISC_IPV6_H)
AC_SUBST(ISC_IPV6_O)
AC_SUBST(ISC_ISCIPV6_O)
AC_SUBST(ISC_IPV6_C)
AC_SUBST(HAVE_SIN6_SCOPE_ID)
AC_SUBST(HAVE_SOCKADDR_STORAGE)

#
# Check for network functions that are often missing.  We do this
# after the libtool checking, so we can put the right suffix on
# the files.  It also needs to come after checking for a Kame add-on,
# which provides some (all?) of the desired functions.
#
AC_MSG_CHECKING([for inet_ntop])
AC_TRY_LINK([
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>],
        [inet_ntop(0, 0, 0, 0); return (0);],
        [AC_MSG_RESULT(yes)
        ISC_PLATFORM_NEEDNTOP="#undef ISC_PLATFORM_NEEDNTOP"],

        [AC_MSG_RESULT(no)
        ISC_EXTRA_OBJS="$ISC_EXTRA_OBJS inet_ntop.$O"
        ISC_EXTRA_SRCS="$ISC_EXTRA_SRCS inet_ntop.c"
        ISC_PLATFORM_NEEDNTOP="#define ISC_PLATFORM_NEEDNTOP 1"])
AC_MSG_CHECKING([for inet_pton])
AC_TRY_LINK([
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>],
        [inet_pton(0, 0, 0); return (0);],
        [AC_MSG_RESULT(yes)
        ISC_PLATFORM_NEEDPTON="#undef ISC_PLATFORM_NEEDPTON"],

        [AC_MSG_RESULT(no)
        ISC_EXTRA_OBJS="$ISC_EXTRA_OBJS inet_pton.$O"
        ISC_EXTRA_SRCS="$ISC_EXTRA_SRCS inet_pton.c"
        ISC_PLATFORM_NEEDPTON="#define ISC_PLATFORM_NEEDPTON 1"])
AC_MSG_CHECKING([for inet_aton])
AC_TRY_LINK([
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>],
        [struct in_addr in; inet_aton(0, &in); return (0);],
        [AC_MSG_RESULT(yes)
        ISC_PLATFORM_NEEDATON="#undef ISC_PLATFORM_NEEDATON"],

        [AC_MSG_RESULT(no)
        ISC_EXTRA_OBJS="$ISC_EXTRA_OBJS inet_aton.$O"
        ISC_EXTRA_SRCS="$ISC_EXTRA_SRCS inet_aton.c"
        ISC_PLATFORM_NEEDATON="#define ISC_PLATFORM_NEEDATON 1"])

AC_SUBST(ISC_PLATFORM_NEEDNTOP)
AC_SUBST(ISC_PLATFORM_NEEDPTON)
AC_SUBST(ISC_PLATFORM_NEEDATON)

#
# Look for a 4.4BSD-style sa_len member in struct sockaddr.
#
case "$host" in
	*-dec-osf*)
		# Tru64 broke send() by defining it to send_OBSOLETE
		AC_DEFINE(REENABLE_SEND)
		# Turn on 4.4BSD style sa_len support.
		AC_DEFINE(_SOCKADDR_LEN)
		;;
esac

AC_MSG_CHECKING(for sa_len in struct sockaddr)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>],
[struct sockaddr sa; sa.sa_len = 0; return (0);],
	[AC_MSG_RESULT(yes)
	HAVE_SA_LEN="#define HAVE_SA_LEN 1"],
	[AC_MSG_RESULT(no)
	HAVE_SA_LEN="#undef HAVE_SA_LEN"])
AC_SUBST(HAVE_SA_LEN)

# HAVE_MINIMUM_IFREQ

case "$host" in
	*-bsdi[2345]*)	have_minimum_ifreq=yes;;
	*-darwin*)	have_minimum_ifreq=yes;;
	*-freebsd*)	have_minimum_ifreq=yes;;
	*-lynxos*)	have_minimum_ifreq=yes;;
	*-netbsd*)	have_minimum_ifreq=yes;;
	*-next*)	have_minimum_ifreq=yes;;
	*-openbsd*)	have_minimum_ifreq=yes;;
	*-rhapsody*)	have_minimum_ifreq=yes;;
esac

case "$have_minimum_ifreq" in
	yes)
		HAVE_MINIMUM_IFREQ="#define HAVE_MINIMUM_IFREQ 1";;
	no)
		HAVE_MINIMUM_IFREQ="#undef HAVE_MINIMUM_IFREQ";;
	*)
		HAVE_MINIMUM_IFREQ="#undef HAVE_MINIMUM_IFREQ";;
esac
AC_SUBST(HAVE_MINIMUM_IFREQ)

# PORT_DIR
PORT_DIR=port/unknown
SOLARIS_BITTYPES="#undef NEED_SOLARIS_BITTYPES"
BSD_COMP="#undef BSD_COMP"
USE_FIONBIO_IOCTL="#undef USE_FIONBIO_IOCTL"
PORT_NONBLOCK="#define PORT_NONBLOCK O_NONBLOCK"
HAVE_MD5="#undef HAVE_MD5"
USE_POLL="#undef HAVE_POLL"
SOLARIS2="#undef SOLARIS2"
case "$host" in
	*aix3.2*)	PORT_DIR="port/aix32";;
	*aix4*)		PORT_DIR="port/aix4";;
	*aix5*)		PORT_DIR="port/aix5";;
	*aux3*)		PORT_DIR="port/aux3";;
	*-bsdi2*)	PORT_DIR="port/bsdos2";;
	*-bsdi*)	PORT_DIR="port/bsdos";;
	*-cygwin*)
			PORT_NONBLOCK="#define PORT_NONBLOCK O_NDELAY"
			PORT_DIR="port/cygwin";;
	*-darwin*)	PORT_DIR="port/darwin";;
	*-dragonfly*)	PORT_DIR="port/dragonfly";;
	*-osf*)		PORT_DIR="port/decunix";;
	*-freebsd*)	PORT_DIR="port/freebsd";;
	*-hpux9*)	PORT_DIR="port/hpux9";;
	*-hpux10*)	PORT_DIR="port/hpux10";;
	*-hpux11*)	PORT_DIR="port/hpux";;
	*-irix*)	PORT_DIR="port/irix";;
	*-linux*)	PORT_DIR="port/linux";;
	*-lynxos*)	PORT_DIR="port/lynxos";;
	*-mpe*)		PORT_DIR="port/mpe";;
	*-netbsd*)	PORT_DIR="port/netbsd";;
	*-next*)	PORT_DIR="port/next";;
	*-openbsd*)	PORT_DIR="port/openbsd";;
	*-qnx*)		PORT_DIR="port/qnx";;
	*-rhapsody*)	PORT_DIR="port/rhapsody";;
	*-sunos4*)
			AC_DEFINE(NEED_SUN4PROTOS)
			PORT_NONBLOCK="#define PORT_NONBLOCK O_NDELAY"
			PORT_DIR="port/sunos";;
	*-solaris2.[[01234]])
			BSD_COMP="#define BSD_COMP 1"
			SOLARIS_BITTYPES="#define NEED_SOLARIS_BITTYPES 1"
			USE_FIONBIO_IOCTL="#define USE_FIONBIO_IOCTL 1"
			SOLARIS2="#define SOLARIS2 1"
			PORT_DIR="port/solaris";;
	*-solaris2.5)
			BSD_COMP="#define BSD_COMP 1"
			SOLARIS_BITTYPES="#define NEED_SOLARIS_BITTYPES 1"
			SOLARIS2="#define SOLARIS2 1"
			PORT_DIR="port/solaris";;
	*-solaris2.[[67]])
			BSD_COMP="#define BSD_COMP 1"
			SOLARIS2="#define SOLARIS2 1"
			PORT_DIR="port/solaris";;
	*-solaris2*)	BSD_COMP="#define BSD_COMP 1"
			USE_POLL="#define USE_POLL 1"
			HAVE_MD5="#define HAVE_MD5 1"
			SOLARIS2="#define SOLARIS2 1"
			PORT_DIR="port/solaris";;
	*-ultrix*)	PORT_DIR="port/ultrix";;
	*-sco-sysv*uw2.0*)	PORT_DIR="port/unixware20";;
	*-sco-sysv*uw2.1.2*)	PORT_DIR="port/unixware212";;
	*-sco-sysv*uw7*)	PORT_DIR="port/unixware7";;
esac

AC_SUBST(BSD_COMP)
AC_SUBST(SOLARIS_BITTYPES)
AC_SUBST(USE_FIONBIO_IOCTL)
AC_SUBST(PORT_NONBLOCK)
AC_SUBST(PORT_DIR)
AC_SUBST(USE_POLL)
AC_SUBST(HAVE_MD5)
AC_SUBST(SOLARIS2)
PORT_INCLUDE=${PORT_DIR}/include
AC_SUBST(PORT_INCLUDE)

#
# Look for a 4.4BSD or 4.3BSD struct msghdr
#
AC_MSG_CHECKING(for struct msghdr flavor)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>],
[struct msghdr msg; msg.msg_flags = 0; return (0);],
	[AC_MSG_RESULT(4.4BSD)
	ISC_PLATFORM_MSGHDRFLAVOR="#define ISC_NET_BSD44MSGHDR 1"],
	[AC_MSG_RESULT(4.3BSD)
	ISC_PLATFORM_MSGHDRFLAVOR="#define ISC_NET_BSD43MSGHDR 1"])
AC_SUBST(ISC_PLATFORM_MSGHDRFLAVOR)

#
# Look for in_port_t.
#
AC_MSG_CHECKING(for type in_port_t)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <netinet/in.h>],
[in_port_t port = 25; return (0);],
	[AC_MSG_RESULT(yes)
	ISC_PLATFORM_NEEDPORTT="#undef ISC_PLATFORM_NEEDPORTT"],
        [AC_MSG_RESULT(no)
	ISC_PLATFORM_NEEDPORTT="#define ISC_PLATFORM_NEEDPORTT 1"])
AC_SUBST(ISC_PLATFORM_NEEDPORTT)

AC_MSG_CHECKING(for struct timespec)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <time.h>],
[struct timespec ts = { 0, 0 }; return (0);],
	[AC_MSG_RESULT(yes)
	ISC_PLATFORM_NEEDTIMESPEC="#undef ISC_PLATFORM_NEEDTIMESPEC"],
        [AC_MSG_RESULT(no)
	ISC_PLATFORM_NEEDTIMESPEC="#define ISC_PLATFORM_NEEDTIMESPEC 1"])
AC_SUBST(ISC_PLATFORM_NEEDTIMESPEC)

#
# Check for addrinfo
#
AC_MSG_CHECKING(for struct addrinfo)
AC_TRY_COMPILE([
#include <netdb.h>],
[struct addrinfo a; return (0);],
	[AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_ADDRINFO)],
	[AC_MSG_RESULT(no)])

AC_MSG_CHECKING(for int sethostent)
AC_TRY_COMPILE([
#include <netdb.h>],
[int i = sethostent(0); return(0);],
	[AC_MSG_RESULT(yes)],
	[AC_MSG_RESULT(no)])

AC_MSG_CHECKING(for int endhostent)
AC_TRY_COMPILE([
#include <netdb.h>],
[int i = endhostent(); return(0);],
	[AC_MSG_RESULT(yes)
	ISC_LWRES_ENDHOSTENTINT="#define ISC_LWRES_ENDHOSTENTINT 1"],
	[AC_MSG_RESULT(no)
	ISC_LWRES_ENDHOSTENTINT="#undef ISC_LWRES_ENDHOSTENTINT"])
AC_SUBST(ISC_LWRES_ENDHOSTENTINT)

AC_MSG_CHECKING(for int setnetent)
AC_TRY_COMPILE([
#include <netdb.h>],
[int i = setnetent(0); return(0);],
	[AC_MSG_RESULT(yes)
	ISC_LWRES_SETNETENTINT="#define ISC_LWRES_SETNETENTINT 1"],
	[AC_MSG_RESULT(no)
	ISC_LWRES_SETNETENTINT="#undef ISC_LWRES_SETNETENTINT"])
AC_SUBST(ISC_LWRES_SETNETENTINT)

AC_MSG_CHECKING(for int endnetent)
AC_TRY_COMPILE([
#include <netdb.h>],
[int i = endnetent(); return(0);],
	[AC_MSG_RESULT(yes)
	ISC_LWRES_ENDNETENTINT="#define ISC_LWRES_ENDNETENTINT 1"],
	[AC_MSG_RESULT(no)
	ISC_LWRES_ENDNETENTINT="#undef ISC_LWRES_ENDNETENTINT"])
AC_SUBST(ISC_LWRES_ENDNETENTINT)

AC_MSG_CHECKING(for gethostbyaddr(const void *, size_t, ...))
AC_TRY_COMPILE([
#include <netdb.h>
struct hostent *gethostbyaddr(const void *, size_t, int);],
[return(0);],
	[AC_MSG_RESULT(yes)
	ISC_LWRES_GETHOSTBYADDRVOID="#define ISC_LWRES_GETHOSTBYADDRVOID 1"],
	[AC_MSG_RESULT(no)
	ISC_LWRES_GETHOSTBYADDRVOID="#undef ISC_LWRES_GETHOSTBYADDRVOID"])
AC_SUBST(ISC_LWRES_GETHOSTBYADDRVOID)

AC_MSG_CHECKING(for h_errno in netdb.h)
AC_TRY_COMPILE([
#include <netdb.h>],
[h_errno = 1; return(0);],
	[AC_MSG_RESULT(yes)
	ISC_LWRES_NEEDHERRNO="#undef ISC_LWRES_NEEDHERRNO"],
	[AC_MSG_RESULT(no)
	ISC_LWRES_NEEDHERRNO="#define ISC_LWRES_NEEDHERRNO 1"])
AC_SUBST(ISC_LWRES_NEEDHERRNO)

AC_CHECK_FUNC(getipnodebyname,
        [ISC_LWRES_GETIPNODEPROTO="#undef ISC_LWRES_GETIPNODEPROTO"],
        [ISC_LWRES_GETIPNODEPROTO="#define ISC_LWRES_GETIPNODEPROTO 1"])
AC_CHECK_FUNC(getnameinfo,
        [ISC_LWRES_GETNAMEINFOPROTO="#undef ISC_LWRES_GETNAMEINFOPROTO"],
        [ISC_LWRES_GETNAMEINFOPROTO="#define ISC_LWRES_GETNAMEINFOPROTO 1"])
AC_CHECK_FUNC(getaddrinfo,
        [ISC_LWRES_GETADDRINFOPROTO="#undef ISC_LWRES_GETADDRINFOPROTO"
	AC_DEFINE(HAVE_GETADDRINFO)],
        [ISC_LWRES_GETADDRINFOPROTO="#define ISC_LWRES_GETADDRINFOPROTO 1"])
AC_CHECK_FUNC(gai_strerror, AC_DEFINE(HAVE_GAISTRERROR))
AC_SUBST(ISC_LWRES_GETIPNODEPROTO)
AC_SUBST(ISC_LWRES_GETADDRINFOPROTO)
AC_SUBST(ISC_LWRES_GETNAMEINFOPROTO)
AC_CHECK_FUNC(pselect,
	      [NEED_PSELECT="#undef NEED_PSELECT"],
	      [NEED_PSELECT="#define NEED_PSELECT"])
AC_SUBST(NEED_PSELECT)
AC_CHECK_FUNC(gettimeofday,
	      [NEED_GETTIMEOFDAY="#undef NEED_GETTIMEOFDAY"],
	      [NEED_GETTIMEOFDAY="#define NEED_GETTIMEOFDAY 1"])
AC_SUBST(NEED_GETTIMEOFDAY)
AC_CHECK_FUNC(strndup,
	      [HAVE_STRNDUP="#define HAVE_STRNDUP 1"],
	      [HAVE_STRNDUP="#undef HAVE_STRNDUP"])
AC_SUBST(HAVE_STRNDUP)

#
# Look for a sysctl call to get the list of network interfaces.
#
AC_MSG_CHECKING(for interface list sysctl)
AC_EGREP_CPP(found_rt_iflist, [
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/socket.h>
#ifdef NET_RT_IFLIST
found_rt_iflist
#endif
],
	[AC_MSG_RESULT(yes)
	 AC_DEFINE(HAVE_IFLIST_SYSCTL)],
	[AC_MSG_RESULT(no)])

#
# Check for some other useful functions that are not ever-present.
#
AC_CHECK_FUNC(strsep,
	[ISC_PLATFORM_NEEDSTRSEP="#undef ISC_PLATFORM_NEEDSTRSEP"],
	[ISC_PLATFORM_NEEDSTRSEP="#define ISC_PLATFORM_NEEDSTRSEP 1"])


AC_MSG_CHECKING(for char *sprintf)
AC_TRY_COMPILE([
#include <stdio.h>
],
[ char buf[2]; return(*sprintf(buf,"x"));],
AC_DEFINE(SPRINTF_CHAR)
AC_MSG_RESULT(yes)
,
AC_MSG_RESULT(no)
)

AC_MSG_CHECKING(for char *vsprintf)
case $host in
*sunos4*) # not decared in any header file.
AC_DEFINE(VSPRINTF_CHAR)
AC_MSG_RESULT(yes)
;;
*)
AC_TRY_COMPILE([
#include <stdio.h>
],
[ char buf[2]; return(*vsprintf(buf,"x"));],
AC_DEFINE(VSPRINTF_CHAR)
AC_MSG_RESULT(yes)
,
AC_MSG_RESULT(no)
)
;;
esac

AC_CHECK_FUNC(vsnprintf,
	[ISC_PLATFORM_NEEDVSNPRINTF="#undef ISC_PLATFORM_NEEDVSNPRINTF"],
	[ISC_EXTRA_OBJS="$ISC_EXTRA_OBJS print.$O"
	 ISC_EXTRA_SRCS="$ISC_EXTRA_SRCS print.c"
	 ISC_PLATFORM_NEEDVSNPRINTF="#define ISC_PLATFORM_NEEDVSNPRINTF 1"])
AC_SUBST(ISC_PLATFORM_NEEDSTRSEP)
AC_SUBST(ISC_PLATFORM_NEEDVSNPRINTF)

AC_SUBST(ISC_EXTRA_OBJS)
AC_SUBST(ISC_EXTRA_SRCS)

# Determine the printf format characters to use when printing
# values of type isc_int64_t.  We make the assumption that platforms
# where a "long long" is the same size as a "long" (e.g., Alpha/OSF1)
# want "%ld" and everyone else can use "%lld".  Win32 uses "%I64d",
# but that's defined elsewhere since we don't use configure on Win32.
#
AC_MSG_CHECKING(printf format modifier for 64-bit integers)
AC_TRY_RUN([main() { exit(!(sizeof(long long int) == sizeof(long int))); }],
	[AC_MSG_RESULT(l)
	ISC_PLATFORM_QUADFORMAT='#define ISC_PLATFORM_QUADFORMAT "l"'],
	[AC_MSG_RESULT(ll)
	ISC_PLATFORM_QUADFORMAT='#define ISC_PLATFORM_QUADFORMAT "ll"'],
	[AC_MSG_RESULT(default ll)
	ISC_PLATFORM_QUADFORMAT='#define ISC_PLATFORM_QUADFORMAT "ll"'])
AC_SUBST(ISC_PLATFORM_QUADFORMAT)

#
# Security Stuff
#
AC_CHECK_FUNC(chroot, AC_DEFINE(HAVE_CHROOT))

#
# for accept, recvfrom, getpeername etc.
#
AC_MSG_CHECKING(for socket length type)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
int accept(int, struct sockaddr *, socklen_t *);
],[],
[ISC_SOCKLEN_T="#define ISC_SOCKLEN_T socklen_t"
AC_MSG_RESULT(socklen_t)]
,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
int accept(int, struct sockaddr *, unsigned int *);
],[],
[ISC_SOCKLEN_T="#define ISC_SOCKLEN_T unsigned int"
AC_MSG_RESULT(unsigned int)]
,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
int accept(int, struct sockaddr *, unsigned long *);
],[],
[ISC_SOCKLEN_T="#define ISC_SOCKLEN_T unsigned long"
AC_MSG_RESULT(unsigned long)]
,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
int accept(int, struct sockaddr *, long *);
],[],
[ISC_SOCKLEN_T="#define ISC_SOCKLEN_T long"
AC_MSG_RESULT(long)]
,
ISC_SOCKLEN_T="#define ISC_SOCKLEN_T int"
AC_MSG_RESULT(int)
))))
AC_SUBST(ISC_SOCKLEN_T)

AC_CHECK_FUNC(getgrouplist,
AC_TRY_COMPILE(
[#include <unistd.h>
int
getgrouplist(const char *name, int basegid, int *groups, int *ngroups) {
}
],
[return (0);],
GETGROUPLIST_ARGS="#define GETGROUPLIST_ARGS const char *name, int basegid, int *groups, int *ngroups"
,
GETGROUPLIST_ARGS="#define GETGROUPLIST_ARGS const char *name, gid_t basegid, gid_t *groups, int *ngroups"
),
GETGROUPLIST_ARGS="#define GETGROUPLIST_ARGS const char *name, gid_t basegid, gid_t *groups, int *ngroups"
AC_DEFINE(NEED_GETGROUPLIST)
)
AC_SUBST(GETGROUPLIST_ARGS)

AC_CHECK_FUNC(setgroupent,,AC_DEFINE(NEED_SETGROUPENT))

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(getnetbyaddr_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#define _OSF_SOURCE
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
struct netent *
getnetbyaddr_r(long net, int type, struct netent *result, char *buffer,
int buflen) {}
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS char *buf, int buflen"
NET_R_BAD="#define NET_R_BAD NULL"
NET_R_COPY="#define NET_R_COPY buf, buflen"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS NET_R_ARGS"
NET_R_OK="#define NET_R_OK nptr"
NET_R_SETANSWER="#undef NET_R_SETANSWER"
NET_R_RETURN="#define NET_R_RETURN struct netent *"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T long"
NETENT_DATA="#undef NETENT_DATA"
],
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#define _OSF_SOURCE
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int getnetbyaddr_r (unsigned long int, int, struct netent *,
                    char *, size_t, struct netent **, int *);
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS char *buf, size_t buflen, struct netent **answerp, int *h_errnop"
NET_R_BAD="#define NET_R_BAD ERANGE"
NET_R_COPY="#define NET_R_COPY buf, buflen"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS char *buf, size_t buflen"
NET_R_OK="#define NET_R_OK 0"
NET_R_SETANSWER="#define NET_R_SETANSWER 1"
NET_R_RETURN="#define NET_R_RETURN int"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T unsigned long int"
NETENT_DATA="#undef NETENT_DATA"
],
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#define _OSF_SOURCE
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern int getnetbyaddr_r(int, int, struct netent *, struct netent_data *);
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS struct netent_data *ndptr"
NET_R_BAD="#define NET_R_BAD (-1)"
NET_R_COPY="#define NET_R_COPY ndptr"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS struct netent_data *ndptr"
NET_R_OK="#define NET_R_OK 0"
NET_R_SETANSWER="#undef NET_R_SETANSWER"
NET_R_RETURN="#define NET_R_RETURN int"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T int"
NETENT_DATA="#define NETENT_DATA 1"
],
AC_TRY_COMPILE(
#undef __USE_MISC
#define __USE_MISC
[#include <netdb.h>
int getnetbyaddr_r (in_addr_t, int, struct netent *, struct netent_data *);
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS struct netent_data *ndptr"
NET_R_BAD="#define NET_R_BAD (-1)"
NET_R_COPY="#define NET_R_COPY ndptr"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS struct netent_data *ndptr"
NET_R_OK="#define NET_R_OK 0"
NET_R_SETANSWER="#undef NET_R_SETANSWER"
NET_R_RETURN="#define NET_R_RETURN int"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T long"
NETENT_DATA="#define NETENT_DATA 1"
],
AC_TRY_COMPILE(
#undef __USE_MISC
#define __USE_MISC
[#include <netdb.h>
int getnetbyaddr_r (long, int, struct netent *, struct netent_data *);
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS struct netent_data *ndptr"
NET_R_BAD="#define NET_R_BAD (-1)"
NET_R_COPY="#define NET_R_COPY ndptr"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS struct netent_data *ndptr"
NET_R_OK="#define NET_R_OK 0"
NET_R_SETANSWER="#undef NET_R_SETANSWER"
NET_R_RETURN="#define NET_R_RETURN int"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T long"
NETENT_DATA="#define NETENT_DATA 1"
],
AC_TRY_COMPILE(
#undef __USE_MISC
#define __USE_MISC
[#include <netdb.h>
int getnetbyaddr_r (uint32_t, int, struct netent *,
                    char *, size_t, struct netent **, int *);
],
[return (0)],
[
NET_R_ARGS="#define NET_R_ARGS char *buf, size_t buflen, struct netent **answerp, int *h_errnop"
NET_R_BAD="#define NET_R_BAD ERANGE"
NET_R_COPY="#define NET_R_COPY buf, buflen"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS char *buf, size_t buflen"
NET_R_OK="#define NET_R_OK 0"
NET_R_SETANSWER="#define NET_R_SETANSWER 1"
NET_R_RETURN="#define NET_R_RETURN int"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T unsigned long int"
NETENT_DATA="#undef NETENT_DATA"
],
)
)
)
)
)
)
,
NET_R_ARGS="#define NET_R_ARGS char *buf, int buflen"
NET_R_BAD="#define NET_R_BAD NULL"
NET_R_COPY="#define NET_R_COPY buf, buflen"
NET_R_COPY_ARGS="#define NET_R_COPY_ARGS NET_R_ARGS"
NET_R_OK="#define NET_R_OK nptr"
NET_R_SETANSWER="#undef NET_R_SETANSWER"
NET_R_RETURN="#define NET_R_RETURN struct netent *"
GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T long"
NETENT_DATA="#undef NETENT_DATA"
)
esac

case "$host" in
*dec-osf*) GETNETBYADDR_ADDR_T="#define GETNETBYADDR_ADDR_T int" ;;
esac
AC_SUBST(NET_R_ARGS)
AC_SUBST(NET_R_BAD)
AC_SUBST(NET_R_COPY)
AC_SUBST(NET_R_COPY_ARGS)
AC_SUBST(NET_R_OK)
AC_SUBST(NET_R_SETANSWER)
AC_SUBST(NET_R_RETURN)
AC_SUBST(GETNETBYADDR_ADDR_T)
AC_SUBST(NETENT_DATA)

AC_CHECK_FUNC(setnetent_r,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void  setnetent_r (int);
] ,[return (0);],[
NET_R_ENT_ARGS="#undef NET_R_ENT_ARGS /*empty*/"
NET_R_SET_RESULT="#undef NET_R_SET_RESULT /*empty*/"
NET_R_SET_RETURN="#define NET_R_SET_RETURN void"
],
AC_TRY_COMPILE(
[
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern int setnetent_r(int, struct netent_data *);
] ,[return (0);],[
NET_R_ENT_ARGS="#define NET_R_ENT_ARGS struct netent_data *ndptr"
NET_R_SET_RESULT="#define NET_R_SET_RESULT NET_R_OK"
NET_R_SET_RETURN="#define NET_R_SET_RETURN int"
],
)
)
,
NET_R_ENT_ARGS="#undef NET_R_ENT_ARGS /*empty*/"
NET_R_SET_RESULT="#undef NET_R_SET_RESULT /*empty*/"
NET_R_SET_RETURN="#define NET_R_SET_RETURN void"
)
AC_SUBST(NET_R_ENT_ARGS)
AC_SUBST(NET_R_SET_RESULT)
AC_SUBST(NET_R_SET_RETURN)


case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(endnetent_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void  endnetent_r (void);
] ,[return (0);],[
NET_R_END_RESULT="#define NET_R_END_RESULT(x) /*empty*/"
NET_R_END_RETURN="#define NET_R_END_RETURN void"
],
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern int endnetent_r(struct netent_data *);
] ,[return (0);],[
NET_R_END_RESULT="#define NET_R_END_RESULT(x) return (x)"
NET_R_END_RETURN="#define NET_R_END_RETURN int"
],
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern void endnetent_r(struct netent_data *);
] ,[return (0);],[
NET_R_END_RESULT="#define NET_R_END_RESULT(x) /*empty*/"
NET_R_END_RETURN="#define NET_R_END_RETURN void"
],
)
)
)
,
NET_R_END_RESULT="#define NET_R_END_RESULT(x) /*empty*/"
NET_R_END_RETURN="#define NET_R_END_RETURN void"
)
esac
AC_SUBST(NET_R_END_RESULT)
AC_SUBST(NET_R_END_RETURN)

AC_CHECK_FUNC(getgrnam_r,,AC_DEFINE(NEED_GETGRNAM_R))
AC_CHECK_FUNC(getgrgid_r,,AC_DEFINE(NEED_GETGRGID_R))

AC_CHECK_FUNC(getgrent_r,
AC_TRY_COMPILE(
[
#include <grp.h>
struct group *getgrent_r(struct group *grp, char *buffer,
           int buflen) {}
] ,[return (0);],[
GROUP_R_ARGS="#define GROUP_R_ARGS char *buf, int buflen"
GROUP_R_BAD="#define GROUP_R_BAD NULL"
GROUP_R_OK="#define GROUP_R_OK gptr"
GROUP_R_RETURN="#define GROUP_R_RETURN struct group *"
],
)
,
GROUP_R_ARGS="#define GROUP_R_ARGS char *buf, int buflen"
GROUP_R_BAD="#define GROUP_R_BAD NULL"
GROUP_R_OK="#define GROUP_R_OK gptr"
GROUP_R_RETURN="#define GROUP_R_RETURN struct group *"
AC_DEFINE(NEED_GETGRENT_R)
)
AC_SUBST(GROUP_R_ARGS)
AC_SUBST(GROUP_R_BAD)
AC_SUBST(GROUP_R_OK)
AC_SUBST(GROUP_R_RETURN)

AC_CHECK_FUNC(endgrent_r,
,
GROUP_R_END_RESULT="#define GROUP_R_END_RESULT(x) /*empty*/"
GROUP_R_END_RETURN="#define GROUP_R_END_RETURN void"
GROUP_R_ENT_ARGS="#define GROUP_R_ENT_ARGS void"
AC_DEFINE(NEED_ENDGRENT_R)
)
AC_SUBST(GROUP_R_END_RESULT)
AC_SUBST(GROUP_R_END_RETURN)
AC_SUBST(GROUP_R_ENT_ARGS)

AC_CHECK_FUNC(setgrent_r,
,
GROUP_R_SET_RESULT="#undef GROUP_R_SET_RESULT /*empty*/"
GROUP_R_SET_RETURN="#define GROUP_R_SET_RETURN void"
AC_DEFINE(NEED_SETGRENT_R)
)
AC_SUBST(GROUP_R_SET_RESULT)
AC_SUBST(GROUP_R_SET_RETURN)


case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(gethostbyname_r,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
struct hostent  *gethostbyname_r
(const char *name, struct hostent *hp, char *buf, int len, int *h_errnop) {}
],
[return (0);],
[
HOST_R_ARGS="#define HOST_R_ARGS char *buf, int buflen, int *h_errnop"
HOST_R_BAD="#define HOST_R_BAD NULL"
HOST_R_COPY="#define HOST_R_COPY buf, buflen"
HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
HOST_R_OK="#define HOST_R_OK hptr"
HOST_R_RETURN="#define HOST_R_RETURN struct hostent *"
HOST_R_SETANSWER="#undef HOST_R_SETANSWER"
HOSTENT_DATA="#undef HOSTENT_DATA"
]
,
AC_TRY_COMPILE([
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int gethostbyname_r(const char *name,
                          struct hostent *result,
                          struct hostent_data *hdptr);
],,[
HOST_R_ARGS="#define HOST_R_ARGS struct hostent_data *hdptr"
HOST_R_BAD="#define HOST_R_BAD (-1)"
HOST_R_COPY="#define HOST_R_COPY hdptr"
HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS HOST_R_ARGS"
HOST_R_ERRNO="#undef HOST_R_ERRNO"
HOST_R_OK="#define HOST_R_OK 0"
HOST_R_RETURN="#define HOST_R_RETURN int"
HOST_R_SETANSWER="#undef HOST_R_SETANSWER"
HOSTENT_DATA="#define HOSTENT_DATA 1"
],
AC_TRY_COMPILE([
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern int gethostbyname_r (const char *,
                                 struct hostent *,
                                 char *, size_t,
                                 struct hostent **,
                                 int *);
],,[
HOST_R_ARGS="#define HOST_R_ARGS char *buf, size_t buflen, struct hostent **answerp, int *h_errnop"
HOST_R_BAD="#define HOST_R_BAD ERANGE"
HOST_R_COPY="#define HOST_R_COPY buf, buflen"
HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
HOST_R_OK="#define HOST_R_OK 0"
HOST_R_RETURN="#define HOST_R_RETURN int"
HOST_R_SETANSWER="#define HOST_R_SETANSWER 1"
HOSTENT_DATA="#undef HOSTENT_DATA"
],
)))
,
HOST_R_ARGS="#define HOST_R_ARGS char *buf, int buflen, int *h_errnop"
HOST_R_BAD="#define HOST_R_BAD NULL"
HOST_R_COPY="#define HOST_R_COPY buf, buflen"
HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
HOST_R_OK="#define HOST_R_OK hptr"
HOST_R_RETURN="#define HOST_R_RETURN struct hostent *"
HOST_R_SETANSWER="#undef HOST_R_SETANSWER"
HOSTENT_DATA="#undef HOSTENT_DATA"
)
esac
AC_SUBST(HOST_R_ARGS)
AC_SUBST(HOST_R_BAD)
AC_SUBST(HOST_R_COPY)
AC_SUBST(HOST_R_COPY_ARGS)
AC_SUBST(HOST_R_ERRNO)
AC_SUBST(HOST_R_OK)
AC_SUBST(HOST_R_RETURN)
AC_SUBST(HOST_R_SETANSWER)
AC_SUBST(HOSTENT_DATA)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(endhostent_r,
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int endhostent_r(struct hostent_data *buffer);
], ,
HOST_R_END_RESULT="#define HOST_R_END_RESULT(x) return (x)"
HOST_R_END_RETURN="#define HOST_R_END_RETURN int"
HOST_R_ENT_ARGS="#define HOST_R_ENT_ARGS struct hostent_data *hdptr"
,
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern void endhostent_r(struct hostent_data *ht_data);
],[],[
HOST_R_END_RESULT="#define HOST_R_END_RESULT(x)"
HOST_R_END_RETURN="#define HOST_R_END_RETURN void"
HOST_R_ENT_ARGS="#define HOST_R_ENT_ARGS struct hostent_data *hdptr"
],
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern void endhostent_r(void);
],[],[
HOST_R_END_RESULT="#define HOST_R_END_RESULT(x) /*empty*/"
HOST_R_END_RETURN="#define HOST_R_END_RETURN void"
HOST_R_ENT_ARGS="#undef HOST_R_ENT_ARGS /*empty*/"
],
)
)
)
,
HOST_R_END_RESULT="#define HOST_R_END_RESULT(x) /*empty*/"
HOST_R_END_RETURN="#define HOST_R_END_RETURN void"
HOST_R_ENT_ARGS="#undef HOST_R_ENT_ARGS /*empty*/"
)
esac;
AC_SUBST(HOST_R_END_RESULT)
AC_SUBST(HOST_R_END_RETURN)
AC_SUBST(HOST_R_ENT_ARGS)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(sethostent_r,
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern void sethostent_r(int flag, struct hostent_data *ht_data);],[],
[HOST_R_SET_RESULT="#undef HOST_R_SET_RESULT /*empty*/"
HOST_R_SET_RETURN="#define HOST_R_SET_RETURN void"],
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
extern int sethostent_r(int flag, struct hostent_data *ht_data);],[],
[HOST_R_SET_RESULT="#define HOST_R_SET_RESULT 0"
HOST_R_SET_RETURN="#define HOST_R_SET_RETURN int"],
AC_TRY_COMPILE([
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void            sethostent_r (int);],[],
[HOST_R_SET_RESULT="#undef HOST_R_SET_RESULT"
HOST_R_SET_RETURN="#define HOST_R_SET_RETURN void"],
)
)
)
,
HOST_R_SET_RESULT="#undef HOST_R_SET_RESULT"
HOST_R_SET_RETURN="#define HOST_R_SET_RETURN void"
)
esac
AC_SUBST(HOST_R_SET_RESULT)
AC_SUBST(HOST_R_SET_RETURN)


AC_MSG_CHECKING(struct passwd element pw_class)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <pwd.h>
],[struct passwd *pw; pw->pw_class = "";],
AC_MSG_RESULT(yes)
AC_DEFINE(HAS_PW_CLASS)
,
		AC_MSG_RESULT(no)
)

AC_TRY_COMPILE([
#include <sys/types.h>
#include <pwd.h>
void
setpwent(void) {}
],
[return (0);],
SETPWENT_VOID="#define SETPWENT_VOID 1"
,
SETPWENT_VOID="#undef SETPWENT_VOID"
)
AC_SUBST(SETPWENT_VOID)

AC_TRY_COMPILE([
#include <sys/types.h>
#include <grp.h>
void
setgrent(void) {}
],
[return (0);],
SETGRENT_VOID="#define SETGRENT_VOID 1"
,
SETGRENT_VOID="#undef SETGRENT_VOID"
)
AC_SUBST(SETGRENT_VOID)

case $host in
ia64-hp-hpux11.*)
NGR_R_CONST="#define NGR_R_CONST"
;;
*-hp-hpux11.*)
#
# HPUX doesn't have a prototype for getnetgrent_r().
#
NGR_R_CONST="#define NGR_R_CONST"
NGR_R_ARGS="#define NGR_R_ARGS char *buf, int buflen"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf, buflen"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
;;

*)
AC_CHECK_FUNC(getnetgrent_r,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
int getnetgrent_r(char **m, char **u, char **d, char *b, int l) {}
]
,
[return (0);],
[
NGR_R_CONST="#define NGR_R_CONST"
NGR_R_ARGS="#define NGR_R_ARGS char *buf, int buflen"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf, buflen"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
int getnetgrent_r(char **m, char **u, char **d, char *b, size_t l) {}
]
,
[return (0);],
[
NGR_R_CONST="#define NGR_R_CONST"
NGR_R_ARGS="#define NGR_R_ARGS char *buf, size_t buflen"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf, buflen"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
extern int getnetgrent_r(char **, char **, char **, void **);
]
,
[return (0);],
[
NGR_R_CONST="#define NGR_R_CONST"
NGR_R_ARGS="#define NGR_R_ARGS void **buf"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
NGR_R_PRIVATE="#define NGR_R_PRIVATE 1"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
extern int getnetgrent_r(const char **, const char **, const char **, void *);
]
,
[return (0);],
[
NGR_R_CONST="#define NGR_R_CONST const"
NGR_R_ARGS="#define NGR_R_ARGS void *buf"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
NGR_R_PRIVATE="#define NGR_R_PRIVATE 2"
]
,
)
)
)
)
,
NGR_R_CONST="#define NGR_R_CONST"
NGR_R_ARGS="#define NGR_R_ARGS char *buf, int buflen"
NGR_R_BAD="#define NGR_R_BAD (0)"
NGR_R_COPY="#define NGR_R_COPY buf, buflen"
NGR_R_COPY_ARGS="#define NGR_R_COPY_ARGS NGR_R_ARGS"
NGR_R_OK="#define NGR_R_OK 1"
NGR_R_RETURN="#define NGR_R_RETURN int"
)
esac
AC_SUBST(NGR_R_CONST)
AC_SUBST(NGR_R_ARGS)
AC_SUBST(NGR_R_BAD)
AC_SUBST(NGR_R_COPY)
AC_SUBST(NGR_R_COPY_ARGS)
AC_SUBST(NGR_R_OK)
AC_SUBST(NGR_R_RETURN)
AC_SUBST(NGR_R_PRIVATE)

AC_CHECK_FUNC(endnetgrent_r,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
void endnetgrent_r(void **ptr);
]
,
[return (0);]
,
[
NGR_R_END_RESULT="#define NGR_R_END_RESULT(x)  /* empty */"
NGR_R_END_RETURN="#define NGR_R_END_RETURN void"
NGR_R_END_ARGS="#define NGR_R_END_ARGS NGR_R_ARGS"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
void endnetgrent_r(void *ptr);
]
,
[return (0);]
,
[
NGR_R_END_RESULT="#define NGR_R_END_RESULT(x)  /* empty */"
NGR_R_END_RETURN="#define NGR_R_END_RETURN void"
NGR_R_END_ARGS="#define NGR_R_END_ARGS void *buf"
]
,
[
NGR_R_END_RESULT="#define NGR_R_END_RESULT(x)  return (x)"
NGR_R_END_RETURN="#define NGR_R_END_RETURN int"
NGR_R_END_ARGS="#define NGR_R_END_ARGS NGR_R_ARGS"
]
)
)
,
NGR_R_END_RESULT="#define NGR_R_END_RESULT(x)  /*empty*/"
NGR_R_END_RETURN="#define NGR_R_END_RETURN void"
NGR_R_END_ARGS="#undef NGR_R_END_ARGS /*empty*/"
AC_DEFINE(NEED_ENDNETGRENT_R)
)
AC_SUBST(NGR_R_END_RESULT)
AC_SUBST(NGR_R_END_RETURN)
AC_SUBST(NGR_R_END_ARGS)

AC_CHECK_FUNC(setnetgrent_r,
[
case "$host" in
*bsdi*)
	#
	# No prototype
	#
	NGR_R_SET_RESULT="#undef NGR_R_SET_RESULT /*empty*/"
	NGR_R_SET_RETURN="#define NGR_R_SET_RETURN void"
	NGR_R_SET_ARGS="#define NGR_R_SET_ARGS NGR_R_ARGS"
	NGR_R_SET_CONST="#define NGR_R_SET_CONST"
	;;
*hpux*)
	#
	# No prototype
	#
	NGR_R_SET_RESULT="#define NGR_R_SET_RESULT NGR_R_OK"
	NGR_R_SET_RETURN="#define NGR_R_SET_RETURN int"
	NGR_R_SET_ARGS="#undef NGR_R_SET_ARGS /* empty */"
	NGR_R_SET_CONST="#define NGR_R_SET_CONST"
	;;
*)
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
void setnetgrent_r(void **ptr);
]
,
[return (0);]
,
[
NGR_R_SET_RESULT="#undef NGR_R_SET_RESULT /* empty */"
NGR_R_SET_RETURN="#define NGR_R_SET_RETURN void"
NGR_R_SET_ARGS="#define NGR_R_SET_ARGS void **buf"
NGR_R_SET_CONST="#define NGR_R_SET_CONST"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#undef _REEENTRANT
#define _REEENTRANT
#include <netdb.h>
#include <unistd.h>
extern int setnetgrent_r(char *, void **);
]
,
[return (0);]
,
[
NGR_R_SET_RESULT="#define NGR_R_SET_RESULT NGR_R_OK"
NGR_R_SET_RETURN="#define NGR_R_SET_RETURN int"
NGR_R_SET_ARGS="#define NGR_R_SET_ARGS void **buf"
NGR_R_SET_CONST="#define NGR_R_SET_CONST"
]
,
[
NGR_R_SET_RESULT="#define NGR_R_SET_RESULT NGR_R_OK"
NGR_R_SET_RETURN="#define NGR_R_SET_RETURN int"
NGR_R_SET_ARGS="#undef NGR_R_SET_ARGS"
NGR_R_SET_CONST="#define NGR_R_SET_CONST const"
]
))
;;
esac
]
,
NGR_R_SET_RESULT="#undef NGR_R_SET_RESULT /*empty*/"
NGR_R_SET_RETURN="#define NGR_R_SET_RETURN void"
NGR_R_SET_ARGS="#undef NGR_R_SET_ARGS"
NGR_R_SET_CONST="#define NGR_R_SET_CONST const"
)

AC_SUBST(NGR_R_SET_RESULT)
AC_SUBST(NGR_R_SET_RETURN)
AC_SUBST(NGR_R_SET_ARGS)
AC_SUBST(NGR_R_SET_CONST)

AC_CHECK_FUNC(innetgr_r,,AC_DEFINE(NEED_INNETGR_R))

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(getprotoent_r,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
struct protoent *getprotoent_r(struct protoent *result,
		 char *buffer, int buflen) {}
]
,
[return (0);]
,
[
PROTO_R_ARGS="#define PROTO_R_ARGS char *buf, int buflen"
PROTO_R_BAD="#define PROTO_R_BAD NULL"
PROTO_R_COPY="#define PROTO_R_COPY buf, buflen"
PROTO_R_COPY_ARGS="#define PROTO_R_COPY_ARGS PROTO_R_ARGS"
PROTO_R_OK="#define PROTO_R_OK pptr"
PROTO_R_SETANSWER="#undef PROTO_R_SETANSWER"
PROTO_R_RETURN="#define PROTO_R_RETURN struct protoent *"
PROTOENT_DATA="#undef PROTOENT_DATA"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int getprotoent_r (struct protoent *, char *, size_t, struct protoent **);

]
,
[return (0);]
,
[
PROTO_R_ARGS="#define PROTO_R_ARGS char *buf, size_t buflen, struct protoent **answerp"
PROTO_R_BAD="#define PROTO_R_BAD ERANGE"
PROTO_R_COPY="#define PROTO_R_COPY buf, buflen"
PROTO_R_COPY_ARGS="#define PROTO_R_COPY_ARGS char *buf, size_t buflen"
PROTO_R_OK="#define PROTO_R_OK 0"
PROTO_R_SETANSWER="#define PROTO_R_SETANSWER 1"
PROTO_R_RETURN="#define PROTO_R_RETURN int"
PROTOENT_DATA="#undef PROTOENT_DATA"
]
,
AC_TRY_COMPILE(
[
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int getprotoent_r (struct protoent *, struct protoent_data *prot_data);

]
,
[return (0);]
,
[
PROTO_R_ARGS="#define PROTO_R_ARGS struct protoent_data *prot_data"
PROTO_R_BAD="#define PROTO_R_BAD (-1)"
PROTO_R_COPY="#define PROTO_R_COPY prot_data"
PROTO_R_COPY_ARGS="#define PROTO_R_COPY_ARGS struct protoent_data *pdptr"
PROTO_R_OK="#define PROTO_R_OK 0"
PROTO_R_SETANSWER="#undef PROTO_R_SETANSWER"
PROTO_R_RETURN="#define PROTO_R_RETURN int"
PROTOENT_DATA="#define PROTOENT_DATA 1"
]
,
)
)
)
,
PROTO_R_ARGS="#define PROTO_R_ARGS char *buf, int buflen"
PROTO_R_BAD="#define PROTO_R_BAD NULL"
PROTO_R_COPY="#define PROTO_R_COPY buf, buflen"
PROTO_R_COPY_ARGS="#define PROTO_R_COPY_ARGS PROTO_R_ARGS"
PROTO_R_OK="#define PROTO_R_OK pptr"
PROTO_R_SETANSWER="#undef PROTO_R_SETANSWER"
PROTO_R_RETURN="#define PROTO_R_RETURN struct protoent *"
PROTOENT_DATA="#undef PROTOENT_DATA"
)
;;
esac
AC_SUBST(PROTO_R_ARGS)
AC_SUBST(PROTO_R_BAD)
AC_SUBST(PROTO_R_COPY)
AC_SUBST(PROTO_R_COPY_ARGS)
AC_SUBST(PROTO_R_OK)
AC_SUBST(PROTO_R_SETANSWER)
AC_SUBST(PROTO_R_RETURN)
AC_SUBST(PROTOENT_DATA)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(endprotoent_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void endprotoent_r(void);
]
,,
[
PROTO_R_END_RESULT="#define PROTO_R_END_RESULT(x) /*empty*/"
PROTO_R_END_RETURN="#define PROTO_R_END_RETURN void"
PROTO_R_ENT_ARGS="#undef PROTO_R_ENT_ARGS"
PROTO_R_ENT_UNUSED="#undef PROTO_R_ENT_UNUSED"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void endprotoent_r(struct protoent_data *);
]
,,
[
PROTO_R_END_RESULT="#define PROTO_R_END_RESULT(x) /*empty*/"
PROTO_R_END_RETURN="#define PROTO_R_END_RETURN void"
PROTO_R_ENT_ARGS="#define PROTO_R_ENT_ARGS struct protoent_data *proto_data"
PROTO_R_ENT_UNUSED="#define PROTO_R_ENT_UNUSED UNUSED(proto_data)"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int endprotoent_r(struct protoent_data *);
]
,,
[
PROTO_R_END_RESULT="#define PROTO_R_END_RESULT(x) return(0)"
PROTO_R_END_RETURN="#define PROTO_R_END_RETURN int"
PROTO_R_ENT_ARGS="#define PROTO_R_ENT_ARGS struct protoent_data *proto_data"
PROTO_R_ENT_UNUSED="#define PROTO_R_ENT_UNUSED UNUSED(proto_data)"
]
,
)
)
)
,
PROTO_R_END_RESULT="#define PROTO_R_END_RESULT(x) /*empty*/"
PROTO_R_END_RETURN="#define PROTO_R_END_RETURN void"
PROTO_R_ENT_ARGS="#undef PROTO_R_ENT_ARGS /*empty*/"
PROTO_R_ENT_UNUSED="#undef PROTO_R_ENT_UNUSED"
)
esac
AC_SUBST(PROTO_R_END_RESULT)
AC_SUBST(PROTO_R_END_RETURN)
AC_SUBST(PROTO_R_ENT_ARGS)
AC_SUBST(PROTO_R_ENT_UNUSED)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(setprotoent_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void               setprotoent_r __P((int));
],[],
PROTO_R_SET_RESULT="#undef PROTO_R_SET_RESULT"
PROTO_R_SET_RETURN="#define PROTO_R_SET_RETURN void"
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int setprotoent_r (int, struct protoent_data *);
],[],
PROTO_R_SET_RESULT="#define PROTO_R_SET_RESULT (0)"
PROTO_R_SET_RETURN="#define PROTO_R_SET_RETURN int"
,
)
)
,
PROTO_R_SET_RESULT="#undef PROTO_R_SET_RESULT"
PROTO_R_SET_RETURN="#define PROTO_R_SET_RETURN void"
)
esac
AC_SUBST(PROTO_R_SET_RESULT)
AC_SUBST(PROTO_R_SET_RETURN)

AC_CHECK_FUNC(getpwent_r,
AC_TRY_COMPILE(
[
#include <sys/types.h>
#include <pwd.h>
struct passwd *
getpwent_r(struct passwd *pwptr, char *buf, int buflen) {}
]
,
[]
,
PASS_R_ARGS="#define PASS_R_ARGS char *buf, int buflen"
PASS_R_BAD="#define PASS_R_BAD NULL"
PASS_R_COPY="#define PASS_R_COPY buf, buflen"
PASS_R_COPY_ARGS="#define PASS_R_COPY_ARGS PASS_R_ARGS"
PASS_R_OK="#define PASS_R_OK pwptr"
PASS_R_RETURN="#define PASS_R_RETURN struct passwd *"
,
)
,
PASS_R_ARGS="#define PASS_R_ARGS char *buf, int buflen"
PASS_R_BAD="#define PASS_R_BAD NULL"
PASS_R_COPY="#define PASS_R_COPY buf, buflen"
PASS_R_COPY_ARGS="#define PASS_R_COPY_ARGS PASS_R_ARGS"
PASS_R_OK="#define PASS_R_OK pwptr"
PASS_R_RETURN="#define PASS_R_RETURN struct passwd *"
AC_DEFINE(NEED_GETPWENT_R)
)
AC_SUBST(PASS_R_ARGS)
AC_SUBST(PASS_R_BAD)
AC_SUBST(PASS_R_COPY)
AC_SUBST(PASS_R_COPY_ARGS)
AC_SUBST(PASS_R_OK)
AC_SUBST(PASS_R_RETURN)

AC_CHECK_FUNC(endpwent_r,
AC_TRY_COMPILE(
[
#include <pwd.h>
void endpwent_r(FILE **pwfp);
], ,
PASS_R_END_RESULT="#define PASS_R_END_RESULT(x) /*empty*/"
PASS_R_END_RETURN="#define PASS_R_END_RETURN void"
PASS_R_ENT_ARGS="#define PASS_R_ENT_ARGS FILE **pwptr"
,
)
,
PASS_R_END_RESULT="#define PASS_R_END_RESULT(x) /*empty*/"
PASS_R_END_RETURN="#define PASS_R_END_RETURN void"
PASS_R_ENT_ARGS="#undef PASS_R_ENT_ARGS"
AC_DEFINE(NEED_ENDPWENT_R)
)
AC_SUBST(PASS_R_END_RESULT)
AC_SUBST(PASS_R_END_RETURN)
AC_SUBST(PASS_R_ENT_ARGS)
AC_CHECK_FUNC(setpassent_r,,AC_DEFINE(NEED_SETPASSENT_R))
AC_CHECK_FUNC(setpassent,,AC_DEFINE(NEED_SETPASSENT))

AC_CHECK_FUNC(setpwent_r,
AC_TRY_COMPILE([
#include <pwd.h>
void setpwent_r(FILE **pwfp);
], ,
PASS_R_SET_RESULT="#undef PASS_R_SET_RESULT /* empty */"
PASS_R_SET_RETURN="#define PASS_R_SET_RETURN int"
,
AC_TRY_COMPILE([
#include <pwd.h>
int setpwent_r(FILE **pwfp);
], ,
PASS_R_SET_RESULT="#define PASS_R_SET_RESULT 0"
PASS_R_SET_RETURN="#define PASS_R_SET_RETURN int"
,
)
)
,
PASS_R_SET_RESULT="#undef PASS_R_SET_RESULT /*empty*/"
PASS_R_SET_RETURN="#define PASS_R_SET_RETURN void"
AC_DEFINE(NEED_SETPWENT_R)
)
AC_SUBST(PASS_R_SET_RESULT)
AC_SUBST(PASS_R_SET_RETURN)

AC_CHECK_FUNC(getpwnam_r,,AC_DEFINE(NEED_GETPWNAM_R))
AC_CHECK_FUNC(getpwuid_r,,AC_DEFINE(NEED_GETPWUID_R))

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(getservent_r,
AC_TRY_COMPILE([
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
struct servent *
getservent_r(struct servent *result, char *buffer, int buflen) {}
],[return (0);],
[
SERV_R_ARGS="#define SERV_R_ARGS char *buf, int buflen"
SERV_R_BAD="#define SERV_R_BAD NULL"
SERV_R_COPY="#define SERV_R_COPY buf, buflen"
SERV_R_COPY_ARGS="#define SERV_R_COPY_ARGS SERV_R_ARGS"
SERV_R_OK="#define SERV_R_OK sptr"
SERV_R_SETANSWER="#undef SERV_R_SETANSWER"
SERV_R_RETURN="#define SERV_R_RETURN struct servent *"
]
,
AC_TRY_COMPILE([
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int
getservent_r (struct servent *, char *, size_t, struct servent **);
],[return (0);],
[
SERV_R_ARGS="#define SERV_R_ARGS char *buf, size_t buflen, struct servent **answerp"
SERV_R_BAD="#define SERV_R_BAD ERANGE"
SERV_R_COPY="#define SERV_R_COPY buf, buflen"
SERV_R_COPY_ARGS="#define SERV_R_COPY_ARGS char *buf, size_t buflen"
SERV_R_OK="#define SERV_R_OK (0)"
SERV_R_SETANSWER="#define SERV_R_SETANSWER 1"
SERV_R_RETURN="#define SERV_R_RETURN int"
]
,
AC_TRY_COMPILE([
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int
getservent_r (struct servent *, struct servent_data *serv_data);
],[return (0);],
[
SERV_R_ARGS="#define SERV_R_ARGS struct servent_data *serv_data"
SERV_R_BAD="#define SERV_R_BAD (-1)"
SERV_R_COPY="#define SERV_R_COPY serv_data"
SERV_R_COPY_ARGS="#define SERV_R_COPY_ARGS struct servent_data *sdptr"
SERV_R_OK="#define SERV_R_OK (0)"
SERV_R_SETANSWER="#undef SERV_R_SETANSWER"
SERV_R_RETURN="#define SERV_R_RETURN int"
SERVENT_DATA="#define SERVENT_DATA 1"
]
,
)
)
)
,
SERV_R_ARGS="#define SERV_R_ARGS char *buf, int buflen"
SERV_R_BAD="#define SERV_R_BAD NULL"
SERV_R_COPY="#define SERV_R_COPY buf, buflen"
SERV_R_COPY_ARGS="#define SERV_R_COPY_ARGS SERV_R_ARGS"
SERV_R_OK="#define SERV_R_OK sptr"
SERV_R_SETANSWER="#undef SERV_R_SETANSWER"
SERV_R_RETURN="#define SERV_R_RETURN struct servent *"
)
esac
AC_SUBST(SERV_R_ARGS)
AC_SUBST(SERV_R_BAD)
AC_SUBST(SERV_R_COPY)
AC_SUBST(SERV_R_COPY_ARGS)
AC_SUBST(SERV_R_OK)
AC_SUBST(SERV_R_SETANSWER)
AC_SUBST(SERV_R_RETURN)
AC_SUBST(SERVENT_DATA)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(endservent_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void endservent_r(void);
]
,
,
[
SERV_R_END_RESULT="#define SERV_R_END_RESULT(x) /*empty*/"
SERV_R_END_RETURN="#define SERV_R_END_RETURN void "
SERV_R_ENT_ARGS="#undef SERV_R_ENT_ARGS /*empty*/"
SERV_R_ENT_UNUSED="#undef SERV_R_ENT_UNUSED /*empty*/"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void endservent_r(struct servent_data *serv_data);
]
,
,
[
SERV_R_END_RESULT="#define SERV_R_END_RESULT(x) /*empty*/"
SERV_R_END_RETURN="#define SERV_R_END_RETURN void "
SERV_R_ENT_ARGS="#define SERV_R_ENT_ARGS struct servent_data *serv_data"
SERV_R_ENT_UNUSED="#define SERV_R_ENT_UNUSED UNUSED(serv_data)"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int endservent_r(struct servent_data *serv_data);
]
,
,
[
SERV_R_END_RESULT="#define SERV_R_END_RESULT(x) return(x)"
SERV_R_END_RETURN="#define SERV_R_END_RETURN int "
SERV_R_ENT_ARGS="#define SERV_R_ENT_ARGS struct servent_data *serv_data"
SERV_R_ENT_UNUSED="#define SERV_R_ENT_UNUSED UNUSED(serv_data)"
]
,
)
)
)
,
SERV_R_END_RESULT="#define SERV_R_END_RESULT(x) /*empty*/"
SERV_R_END_RETURN="#define SERV_R_END_RETURN void "
SERV_R_ENT_ARGS="#undef SERV_R_ENT_ARGS /*empty*/"
SERV_R_ENT_UNUSED="#undef SERV_R_ENT_UNUSED /*empty*/"
)
esac
AC_SUBST(SERV_R_END_RESULT)
AC_SUBST(SERV_R_END_RETURN)
AC_SUBST(SERV_R_ENT_ARGS)
AC_SUBST(SERV_R_ENT_UNUSED)

case $host in
ia64-hp-hpux11.*)
;;
*)
AC_CHECK_FUNC(setservent_r,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
void setservent_r(int);
]
,,
[
SERV_R_SET_RESULT="#undef SERV_R_SET_RESULT"
SERV_R_SET_RETURN="#define SERV_R_SET_RETURN void"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <netdb.h>
int setservent_r(int, struct servent_data *);
]
,,
[
SERV_R_SET_RESULT="#define SERV_R_SET_RESULT (0)"
SERV_R_SET_RETURN="#define SERV_R_SET_RETURN int"
]
,
)
)
,
SERV_R_SET_RESULT="#undef SERV_R_SET_RESULT"
SERV_R_SET_RETURN="#define SERV_R_SET_RETURN void"
)
esac
AC_SUBST(SERV_R_SET_RESULT)
AC_SUBST(SERV_R_SET_RETURN)

AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <unistd.h>
#include <netdb.h>
int innetgr(const char *netgroup, const char *host, const char *user, const char *domain);
]
,,
[
INNETGR_ARGS="#undef INNETGR_ARGS"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <unistd.h>
#include <netdb.h>
int innetgr(char *netgroup, char *host, char *user, char *domain);
]
,,
[
INNETGR_ARGS="#define INNETGR_ARGS char *netgroup, char *host, char *user, char *domain"
]
,
))

AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <unistd.h>
#include <netdb.h>
void setnetgrent(const char *);
]
,,
[
SETNETGRENT_ARGS="#undef SETNETGRENT_ARGS"
]
,
AC_TRY_COMPILE(
[
#undef _REENTRANT
#define _REENTRANT
#undef __USE_MISC
#define __USE_MISC
#include <unistd.h>
#include <netdb.h>
void setnetgrent(char *);
]
,,
[
SETNETGRENT_ARGS="#define SETNETGRENT_ARGS char *netgroup"
]
,
))
AC_SUBST(SETNETGRENT_ARGS)
AC_SUBST(INNETGR_ARGS)

#
# Random remaining OS-specific issues involving compiler warnings.
# XXXDCL print messages to indicate some compensation is being done?
#
BROKEN_IN6ADDR_INIT_MACROS="#undef BROKEN_IN6ADDR_INIT_MACROS"

case "$host" in
	*-aix5.1.*)
		hack_shutup_pthreadmutexinit=yes
		hack_shutup_in6addr_init_macros=yes
		;;
	*-aix5.[[23]].*)
		hack_shutup_in6addr_init_macros=yes
		;;
	*-bsdi3.1*)
		hack_shutup_sputaux=yes
		;;
	*-bsdi4.0*)
		hack_shutup_sigwait=yes
		hack_shutup_sputaux=yes
		hack_shutup_in6addr_init_macros=yes
		;;
	*-bsdi4.1*)
		hack_shutup_stdargcast=yes
		;;
	*-hpux11.11)
		hack_shutup_in6addr_init_macros=yes
		;;
	*-osf5.1|*-osf5.1b)
		hack_shutup_in6addr_init_macros=yes
		;;
	*-solaris2.8)
		hack_shutup_in6addr_init_macros=yes
		;;
	*-solaris2.9)
		hack_shutup_in6addr_init_macros=yes
		;;
	*-solaris2.1[[0-9]])
		hack_shutup_in6addr_init_macros=yes
		;;
esac

case "$hack_shutup_pthreadmutexinit" in
	yes)
		#
		# Shut up PTHREAD_MUTEX_INITIALIZER unbraced
		# initializer warnings.
		#
		AC_DEFINE(SHUTUP_MUTEX_INITIALIZER)
		;;
esac

case "$hack_shutup_sigwait" in
	yes)
		#
		# Shut up a -Wmissing-prototypes warning for sigwait().
		#
		AC_DEFINE(SHUTUP_SIGWAIT)
		;;
esac

case "$hack_shutup_sputaux" in
	yes)
		#
		# Shut up a -Wmissing-prototypes warning from <stdio.h>.
		#
		AC_DEFINE(SHUTUP_SPUTAUX)
		;;
esac

case "$hack_shutup_stdargcast" in
	yes)
		#
		# Shut up a -Wcast-qual warning from va_start().
		#
		AC_DEFINE(SHUTUP_STDARG_CAST)
		;;
esac

case "$hack_shutup_in6addr_init_macros" in
	yes)
		AC_DEFINE(BROKEN_IN6ADDR_INIT_MACROS, 1, [Defined if IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT need to be redefined.] )
		;;
esac

#
# Substitutions
#
AC_SUBST(BIND9_TOP_BUILDDIR)
BIND9_TOP_BUILDDIR=`pwd`

AC_SUBST_FILE(BIND9_INCLUDES)
BIND9_INCLUDES=$BIND9_TOP_BUILDDIR/make/includes

AC_SUBST_FILE(BIND9_MAKE_RULES)
BIND9_MAKE_RULES=$BIND9_TOP_BUILDDIR/make/rules

AC_SUBST_FILE(LIBBIND_API)
LIBBIND_API=$srcdir/api

AC_OUTPUT(
	make/rules
	make/mkdep
	make/includes
	Makefile
	bsd/Makefile
	doc/Makefile
	dst/Makefile
	include/Makefile
	inet/Makefile
	irs/Makefile
	isc/Makefile
	nameser/Makefile
	port_after.h
	port_before.h
	resolv/Makefile
	port/Makefile
	${PORT_DIR}/Makefile
	${PORT_INCLUDE}/Makefile
	include/isc/platform.h
        tests/Makefile
)

# Tell Emacs to edit this file in shell mode.
# Local Variables:
# mode: sh
# End:
