dnl #############################################################
dnl #
dnl #  For information about autoconf, see:
dnl #
dnl #  http://www.gnu.org/software/autoconf/
dnl #  
dnl #  The recommended order is:
dnl #
dnl #  AC_INIT(file)
dnl #  0. checks for compiler, libtool, and command line options
dnl #  1. checks for programs
dnl #  2. checks for libraries
dnl #  3. checks for header files
dnl #  4. checks for typedefs
dnl #  5. checks for structures and functions
dnl #  6. checks for compiler characteristics
dnl #  7. checks for library functions
dnl #  8. checks for system services
dnl #  AC_OUTPUT([file...])
dnl #
dnl #############################################################

AC_INIT(src/main/radiusd.c)
AC_CONFIG_HEADER(src/include/autoconf.h)
AC_REVISION($Revision$)dnl

dnl # The version of the software
RADIUSD_MAJOR_VERSION=1
RADIUSD_MINOR_VERSION=1.1
RADIUSD_VERSION="${RADIUSD_MAJOR_VERSION}.${RADIUSD_MINOR_VERSION}"

dnl #############################################################
dnl #
dnl #  0. Checks for compiler, libtool, and command line options.
dnl #
dnl #############################################################

dnl Check for GNU cc
AC_PROG_CC

dnl #
dnl # check for AIX, to allow us to use some BSD functions
dnl # must be before macros that call the compiler.
dnl #
AC_AIX

AC_PROG_GCC_TRADITIONAL
AC_PROG_CC_SUNPRO
AC_PROG_RANLIB

abs_top_builddir=`pwd`
AC_SUBST(abs_top_builddir)

dnl # autoconf 2.50 and later
dnl # AC_SYS_LARGEFILE

PACKAGE=freeradius

dnl # check for system bytesex
dnl # AC_DEFINES WORDS_BIGENDIAN
AC_C_BIGENDIAN

dnl Find GNU Make.
AC_CHECK_PROG(GMAKE, gmake, yes, no)
if test $GMAKE = no; then
  AC_PATH_PROG(MAKE, make, /usr/local/bin/make)
else
  AC_PATH_PROG(MAKE, gmake, /usr/local/gnu/bin/make)
fi
makever=`$ac_cv_path_MAKE --version 2>&1 | grep "GNU Make"`
if test -z "$makever"; then
  AC_MSG_ERROR(GNU Make is not installed.  Please download and install it
		from ftp://prep.ai.mit.edu/pub/gnu/make/ before continuing.)
fi

dnl libltdl is installable
AC_LIBLTDL_INSTALLABLE

dnl use system-wide libtool, if it exists
AC_ARG_WITH(system-libtool, 
[  --with-system-libtool              try to use libtool installed in your system [default=use our own]],
[ AC_PATH_PROG(LIBTOOL, libtool,,$PATH:/usr/local/bin) ],
[
  LIBTOOL="`pwd`/libtool"
  AC_SUBST(LIBTOOL)
  dnl ensure that we're looking for dlopen
  AC_LIBTOOL_DLOPEN

  dnl Figure out how to build shared libraries
  AC_PROG_LIBTOOL
])


dnl Put this in later, when all distributed modules use autoconf.
dnl AC_ARG_WITH(disablemodulefoo,
dnl [  --without-rlm_foo       Disables module compilation.  Module list:]
dnl esyscmd([find src/modules -type d -name rlm_\* -print |\
dnl 	sed -e 's%src/modules/.*/% (sub)- %; s%.*/%- %' |\
dnl 	awk '{print "                            "$0}']))

AC_ARG_ENABLE(strict-dependencies,
[  --enable-strict-dependencies  Fail configure on lack of module dependancy.])

dnl extra argument: --with-logdir
logdir='${localstatedir}/log/radius'
AC_MSG_CHECKING(logdir)
AC_ARG_WITH(logdir,
[  --with-logdir=DIR       Directory for logfiles [LOCALSTATEDIR/log/radius] ],
[ case "$withval" in
    no)
	AC_MSG_ERROR(Need logdir)
	;;
    yes)
	;;
    *)
	logdir="$withval"
	;;
  esac ]
)
AC_SUBST(logdir)
AC_MSG_RESULT($logdir)

dnl extra argument: --with-radacctdir
radacctdir='${logdir}/radacct'
AC_MSG_CHECKING(radacctdir)
AC_ARG_WITH(radacctdir,
[  --with-radacctdir=PATH  Directory for detail files [LOGDIR/radacct] ],
[ case "$withval" in
    no)
	AC_MSG_ERROR(Need radacctdir)
	;;
    yes)
	;;
    *)
	radacctdir="$withval"
	;;
  esac ]
)
AC_SUBST(radacctdir)
AC_MSG_RESULT($radacctdir)

dnl extra argument: --with-raddbdir
raddbdir='${sysconfdir}/raddb'
AC_MSG_CHECKING(raddbdir)
AC_ARG_WITH(raddbdir,
[  --with-raddbdir=DIR     Directory for config files [SYSCONFDIR/raddb] ],
[ case "$withval" in
    no)
	AC_MSG_ERROR(Need raddbdir)
	;;
    yes)
	;;
    *)
	raddbdir="$withval"
	;;
  esac ]
)
AC_SUBST(raddbdir)
AC_MSG_RESULT($raddbdir)

dnl extra argument: --with-ascend-binary
ASCEND_BINARY=yes
AC_ARG_WITH(ascend-binary,
[  --with-ascend-binary    Include support for Ascend binary filter attributes (default=yes)],
[ case "$withval" in
    yes)
	;;
    *)
	ASCEND_BINARY=""
  esac ]
)
if test "X$ASCEND_BINARY" = "Xyes"; then
  AC_DEFINE(ASCEND_BINARY)
fi

dnl extra argument: --with-threads
WITH_THREADS=yes
AC_ARG_WITH(threads,
[  --with-threads          Use threads, if available.  (default=yes) ],
[ case "$withval" in
    yes)
	;;
    *)
	WITH_THREADS=""
  esac ]
)

dnl extra argument: --with-snmp
WITH_SNMP=yes
AC_ARG_WITH(snmp,
[  --with-snmp             Compile in SNMP support. (default=yes)],
[ case "$withval" in
    yes)
        ;;
    *)
	WITH_SNMP=no
  esac ]
)

dnl extra argument: --with-large-files
rad_enable_largefiles=no
AC_ARG_WITH(large-files,
[  --with-large-files      Compile in large (2G+) file support. (default=no)],
[ case "$withval" in
    yes)
        rad_enable_largefiles=yes
	;;
    *)
	;;
  esac ]
)


dnl AC_ARG_ENABLE(ltdl-install,
dnl [  --disable-ltdl-install  do not install libltdl])
dnl if test x"${enable_ltdl_install+set}" != xset; then
dnl   enable_ltdl_install=yes
dnl   ac_configure_args="$ac_configure_args --enable-ltdl-install"
dnl fi
dnl AC_CONFIG_SUBDIRS(libltdl)

dnl #
dnl #  Allow the user to specify a list of modules to be linked
dnl #  statically to the server.
dnl #
STATIC_MODULES=
AC_ARG_WITH(static_modules,
[  --with-static-modules=QUOTED-MODULE-LIST],[
  for i in $withval; do
    STATIC_MODULES="$STATIC_MODULES -dlpreopen ../modules/rlm_$i/rlm_$i.la"
  done
])

dnl #
dnl #  Enable developer C compiler warnings
dnl #
AC_ARG_ENABLE(developer,
[  --enable-developer               Enables features of interest to developers.],
[ case "$enableval" in
    no)
	developer=no
	;;
    *)
	developer=yes
  esac ]
)

if test "x$developer" != "xno" -a -d $srcdir/CVS; then
  dnl turn on the developer flag when taken from a CVS checkout (not a release)
  developer="yes"
fi

dnl extra argument: --with-experimental-modules
EXPERIMENTAL=
AC_ARG_WITH(experimental-modules,
[  --with-experimental-modules      Use experimental and unstable modules. (default=no) ],
[ case "$withval" in
    yes)
	EXPERIMENTAL=yes
	;;
    *)
  esac ]
)

dnl #
dnl # extra argument: --with-openssl-includes=dir
dnl #
OPENSSL_INCLUDE_DIR=
AC_ARG_WITH(openssl-includes,
[  --with-openssl-includes=DIR      Directory to look for OpenSSL include files],
[ case "$withval" in
    *) OPENSSL_INCLUDE_DIR="$withval"
	;;
  esac ]
)

dnl #
dnl # extra argument: --with-openssl-libraries=dir
dnl #
OPENSSL_LIB_DIR=
AC_ARG_WITH(openssl-libraries,
[  --with-openssl-libraries=DIR     Directory to look for OpenSSL library files],
[ case "$withval" in
    *) OPENSSL_LIB_DIR="$withval"
	;;
  esac ]
)

dnl #
dnl #  These next two arguments don't actually do anything.  They're
dnl #  place holders so that the top-level configure script can tell
dnl #  the user how to configure lower-level modules
dnl #

dnl #
dnl # extra argument: --with-rlm-FOO-lib-dir
dnl #
AC_ARG_WITH(rlm-FOO-lib-dir,
[  --with-rlm-FOO-lib-dir=DIR       Directory to look for library files used by module FOO],
[ case "$withval" in
    *)
	;;
  esac ]
)

dnl #
dnl # extra argument: --with-rlm-FOO-include-dir
dnl #
AC_ARG_WITH(rlm-FOO-include-dir,
[  --with-rlm-FOO-include-dir=DIR   Directory to look for include files used by module FOO],
[ case "$withval" in
    *)
	;;
  esac ]
)

dnl See what include-style is used by the make program.
dnl AC_MSG_CHECKING(include style for make)
dnl echo "include /dev/null" > testmake.$$
dnl echo "all:" >> testmake.$$
dnl make -f testmake.$$ >/dev/null 2>&1
dnl if test $? = 0
dnl then
dnl 	INCLUDE=include
dnl 	IQUOTE=
dnl else
dnl 	INCLUDE=.include
dnl 	IQUOTE='"'
dnl fi
dnl rm -f testmake.$$
dnl AC_MSG_RESULT(" $INCLUDE")
dnl AC_SUBST(INCLUDE)
dnl AC_SUBST(IQUOTE)

dnl extra argument: --with-udpfromto
WITH_UDPFROMTO=no
AC_ARG_WITH(udpfromto,
[  --with-udpfromto        Compile in UDPFROMTO support. (default=no)],
[ case "$withval" in
    yes)
	WITH_UDPFROMTO=yes
        ;;
    *)
	WITH_UDPFROMTO=no
  esac ]
)

if test "x$WITH_UDPFROMTO" = "xyes"; then
	AC_DEFINE(WITH_UDPFROMTO)
fi

dnl extra argument: --with-edir
dnl If using Novell eDirectory, enable UP and Novell specific code
AC_ARG_WITH(edir,
[  --with-edir             Enable Novell eDirectory integration.  (default=no) ] , [] )

dnl #############################################################
dnl #
dnl #  1. Checks for programs
dnl #
dnl #############################################################

CHECKRAD=checkrad.pl
AC_PATH_PROG(PERL, perl, /usr/local/bin/perl)
if test "x$ac_cv_path_PERL" = "x"; then
  AC_MSG_WARN(perl not found - Simultaneous-Use and checkrad.pl may not work)
fi
AC_PATH_PROG(SNMPGET, snmpget)
if test "x$ac_cv_path_SNMPGET" = "x"; then
  AC_MSG_WARN(snmpget not found - Simultaneous-Use and checkrad.pl may not work)
fi

AC_PATH_PROG(SNMPWALK, snmpwalk)
if test "x$ac_cv_path_SNMPWALK" = "x"; then
  AC_MSG_WARN(snmpwalk not found - Simultaneous-Use and checkrad.pl may not work)
fi

AC_PATH_PROG(RUSERS, rusers, /usr/bin/rusers)

dnl FIXME This is truly gross.
missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)

AC_PATH_PROG(LOCATE,locate)
AC_PATH_PROG(DIRNAME,dirname)
AC_PATH_PROG(GREP,grep)

dnl #############################################################
dnl #
dnl #  2. Checks for libraries
dnl #
dnl #############################################################

dnl If using pthreads, check for -lpthread (posix) or -lc_r (*BSD)
old_CFLAGS=$CFLAGS
if test "x$WITH_THREADS" = "xyes"; then 
  if test $ac_cv_prog_suncc = "yes"; then
    CFLAGS="$CFLAGS -mt"
  fi

  AC_CHECK_HEADERS(pthread.h, [], [ WITH_THREADS="no" ])

dnl # 
dnl # pthread stuff is usually in -lpthread
dnl # or in -lc_r, on *BSD
dnl # 
dnl # On Some systems, we need extra pre-processor flags, to get them to
dnl # to do the threading properly.
dnl # 
  AC_CHECK_LIB(pthread, pthread_create,
		[ CFLAGS="$CFLAGS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS"
                  LIBS="$LIBS -lpthread" ],
		AC_CHECK_LIB(c_r, pthread_create,
			    [ CFLAGS="$CFLAGS -pthread -D_THREAD_SAFE" ],
			    [ WITH_THREADS="no" ]
			    )
		)
fi

dnl # 
dnl # If we have NO pthread libraries, remove any knowledge of threads.
dnl # 
if test "x$WITH_THREADS" != "xyes"; then
  CFLAGS=$old_CFLAGS
  ac_cv_header_pthread_h="no"
  WITH_THREADS=no
else
  dnl #
  dnl #  We need sem_init() and friends, as they're the friendliest
  dnl #  semaphore functions for threading.
  dnl #
  dnl # HP/UX requires linking with librt, too, to get the sem_* symbols.
  dnl # Some systems have them in -lsem
  dnl # Solaris has them in -lposix4

  AC_SEARCH_LIBS(sem_init, pthread sem posix4 rt,
	[],
	[AC_MSG_ERROR(-lsem not found.  You may want to download it from ftp://ftp.to.gd-es.com/pub/BSDI/libsem.tar.bz2 or ftp://ftp.freeradius.org/pub/radius/contrib/libsem.tar.gz)]
   )
fi

dnl Check if we need -lsocket
AC_CHECK_LIB(socket, getsockname)

dnl Check for -lresolv
dnl This library may be needed later.
AC_CHECK_LIB(resolv, inet_aton)

dnl Check if we need -lnsl. Usually if we want to
dnl link against -lsocket we need to include -lnsl as well.
AC_CHECK_LIB(nsl, inet_ntoa)

dnl Check for OpenSSL libraries.
OPENSSL_LIBS=
old_LIBS=$LIBS
if test "x$OPENSSL_LIB_DIR" != "x"; then
    LIBS="-L$OPENSSL_LIB_DIR $LIBS"
fi
AC_CHECK_LIB(crypto, DH_new,
    [
	AC_DEFINE(HAVE_LIBCRYPTO, 1,
	    [Define to 1 if you have the `crypto' library (-lcrypto).])
	AC_CHECK_LIB(ssl, SSL_new,
	    [
		AC_DEFINE(HAVE_LIBSSL, 1,
		    [Define to 1 if you have the `ssl' library (-lssl).])
		if test "x$OPENSSL_LIB_DIR" != "x"; then
		    OPENSSL_LIBS="-L$OPENSSL_LIB_DIR"
		fi
		OPENSSL_LIBS="$OPENSSL_LIBS -lcrypto -lssl -lcrypto"
	    ], [])
    ], [])
LIBS=$old_LIBS

dnl #############################################################
dnl #
dnl #  3. Checks for header files
dnl #
dnl #############################################################

dnl #
dnl # Interix requires us to set -D_ALL_SOURCE, otherwise
dnl # getopt will be #included, but won't link.  <sigh>
dnl # 
dnl # 
case "$host" in
*-interix*)
	CFLAGS="$CFLAGS -D_ALL_SOURCE"
	;;
*-darwin*)
	CFLAGS="$CFLAGS -DDARWIN"
	;;
esac

AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_SYS_WAIT

AC_CHECK_HEADERS( \
	unistd.h \
	crypt.h \
	errno.h \
	resource.h \
	getopt.h \
	malloc.h \
	utmp.h \
	utmpx.h \
	signal.h \
	sys/select.h \
	syslog.h \
	inttypes.h \
	stdint.h \
	stdio.h \
	netdb.h \
	semaphore.h \
	arpa/inet.h \
	netinet/in.h \
	sys/types.h \
	sys/socket.h \
	sys/time.h \
	sys/wait.h \
	sys/security.h \
	fcntl.h \
	sys/fcntl.h \
	sys/stat.h \
	prot.h \
	sia.h \
	siad.h
)

REGEX=no
AC_CHECK_HEADER(regex.h, AC_DEFINE(HAVE_REGEX_H))
if test "x$ac_cv_header_regex_h" = "xyes"; then
  REGEX_EXTENDED=no
  REGEX=yes
  AC_EGREP_CPP(yes,
    [#include <regex.h>
     #ifdef REG_EXTENDED
       yes
     #endif
     ], [AC_DEFINE(HAVE_REG_EXTENDED) REGEX_EXTENDED=yes])
fi
AC_SUBST(REGEX)
AC_SUBST(REGEX_EXTENDED)

dnl #
dnl #  other checks which require headers
dnl #
if test "x$ac_cv_header_sys_security_h" = "xyes" && test "x$ac_cv_header_prot_h" = "xyes"
then
  AC_DEFINE(OSFC2)
fi

if test "x$ac_cv_header_sia_h" = "xyes" && test "x$ac_cv_header_siad_h" = "xyes"
then
  AC_DEFINE(OSFSIA)
fi

dnl Check for OpenSSL includes.
OPENSSL_INCLUDE="-DNO_OPENSSL"
if test "x$OPENSSL_LIBS" = "x"; then
    AC_MSG_WARN([skipping test for openssl/ssl.h])
else
    old_CPPFLAGS=$CPPFLAGS
    if test "x$OPENSSL_INCLUDE_DIR" != "x"; then
	CPPFLAGS="$CPPFLAGS -I$OPENSSL_INCLUDE_DIR"
    fi
    dnl # stupid RedHat shit
    CPPFLAGS="$CPPFLAGS -DOPENSSL_NO_KRB5"
    AC_CHECK_HEADERS( \
	openssl/ssl.h \
	openssl/crypto.h \
	openssl/err.h \
	openssl/engine.h,
	[],
	OPENSSL_LIBS=
    )
    if test "x$OPENSSL_LIBS" != "x"; then
	AC_MSG_CHECKING([for OpenSSL version >= 0.9.7])
	AC_EGREP_CPP(yes,
	    [#include <openssl/crypto.h>
	     #if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
	     yes
	     #endif
	    ], goodssl="yes")
	if test "x$goodssl" != "xyes"; then
	    AC_MSG_RESULT(no)
	    OPENSSL_LIBS=
	else
	    AC_MSG_RESULT(yes)
	    if test "x$OPENSSL_INCLUDE_DIR" != "x"; then
		OPENSSL_INCLUDE="-I$OPENSSL_INCLUDE_DIR -DOPENSSL_NO_KRB5"
	    else
		OPENSSL_INCLUDE="-DOPENSSL_NO_KRB5"
	    fi
	fi
    fi
    CPPFLAGS=$old_CPPFLAGS
fi
AC_SUBST(OPENSSL_INCLUDE)
AC_SUBST(OPENSSL_LIBS)
export OPENSSL_LIBS

dnl #############################################################
dnl #
dnl #  4. Checks for typedefs
dnl #
dnl #############################################################

dnl #
dnl # Ensure that these are defined
dnl #
AC_TYPE_OFF_T 
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T

dnl check for socklen_t
AC_CHECK_TYPE_INCLUDE([
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
],socklen_t, int)

dnl check for uint8_t
AC_CHECK_TYPE_INCLUDE([
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
],uint8_t, unsigned char)

dnl check for uint16_t
AC_CHECK_TYPE_INCLUDE([
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
],uint16_t, unsigned short)

dnl check for uint32_t
AC_CHECK_TYPE_INCLUDE([
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
],uint32_t, unsigned int)

dnl #############################################################
dnl #
dnl #  5. Checks for structures and functions
dnl #
dnl #############################################################
AC_CHECK_FUNCS( \
	getopt_long \
	lockf \
	strsignal \
	sigaction \
	sigprocmask \
	pthread_sigmask \
	snprintf \
	vsnprintf \
	setsid \
	strncasecmp \
	strcasecmp \
	localtime_r \
	ctime_r \
	gmtime_r \
	strsep \
	inet_aton \
	inet_pton \
	inet_ntop \
	gethostname \
	setlinebuf \
	setvbuf \
	getusershell \
	initgroups \
	closefrom
)
RADIUSD_NEED_DECLARATIONS( \
	crypt \
	strncasecmp \
	strcasecmp \
	inet_aton \
	gethostname \
	setlinebuf \
	getusershell \
	endusershell
)

AC_TYPE_SIGNAL

dnl # check if we have utmpx.h
dnl # if so, check if struct utmpx has entry ut_xtime
dnl # if not, set it to define ut_xtime == ut_tv.tv_sec
if test "x$ac_cv_header_utmpx_h" = "xyes"
then
 AC_CHECK_STRUCT_HAS_MEMBER([#include <utmpx.h>], [struct utmpx], ut_xtime)
 if test "x$ac_cv_type_struct_utmpx_has_ut_xtime" = "x"
 then
   AC_DEFINE(ut_xtime,ut_tv.tv_sec)
 fi
fi

dnl # struct ip_pktinfo
AC_CHECK_STRUCT_HAS_MEMBER([#include <netinet/in.h>], [struct in_pktinfo], ipi_addr)
if test "x$ac_cv_type_struct_in_pktinfo_has_ipi_addr" = "xyes"
then
	AC_DEFINE(HAVE_IP_PKTINFO)
fi

dnl #############################################################
dnl #
dnl #  6. Checks for compiler characteristics
dnl #
dnl #############################################################

dnl #
dnl # Ensure that these are defined
dnl #
AC_C_CONST 

dnl #
dnl # See if this is OS/2
dnl #
AC_MSG_CHECKING(type of OS)
OS=`uname -s`
AC_MSG_RESULT($OS)
if test "$OS" = "OS/2"; then
	LIBPREFIX=
else
	LIBPREFIX=lib
fi
AC_SUBST(LIBPREFIX)

dnl #
dnl # Set Default CFLAGS
dnl #
if test "x$GCC" = "xyes"; then
    CFLAGS="$CFLAGS -Wall -D_GNU_SOURCE"
fi

AC_MSG_CHECKING(for developer gcc flags)
if test "x$developer" = "xyes" -a "x$GCC" = "xyes"; then
  devflags="-g -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -W -Wredundant-decls -Wundef"
  CFLAGS="$CFLAGS $devflags"
  INSTALLSTRIP=""
  AC_MSG_RESULT(yes.  Using $devflags)
else
  devflags=""
  CFLAGS="$CFLAGS -DNDEBUG"
  INSTALLSTRIP="-s"
  AC_MSG_RESULT(no.)
fi

dnl #############################################################
dnl #
dnl #  7. Checks for library functions
dnl #
dnl #############################################################

dnl Check for libcrypt
dnl We use crypt(3) which may be in libc, or in libcrypt (eg FreeBSD)
AC_CHECK_LIB(crypt, crypt,
  CRYPTLIB="-lcrypt"
)
if test "$CRYPTLIB" != ""; then
  AC_DEFINE(HAVE_CRYPT)
else
  AC_CHECK_FUNC(crypt, AC_DEFINE(HAVE_CRYPT))
fi

dnl Check for libcipher
AC_CHECK_LIB(cipher, setkey,
   CRYPTLIB="${CRYPTLIB} -lcipher"
)
AC_SUBST(CRYPTLIB)

if test "x$WITH_SNMP" = "xyes"; then
  SNMP_CHECKS
fi

dnl Check the style of gethostbyaddr, in order of preference
dnl GNU (_r eight args)
dnl SYSV (_r six args)
dnl BSD (three args, may not be thread safe)
dnl Tru64 has BSD version, but it is thread safe
dnl 	http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/1739____.HTM
dnl We need #stdio.h to define NULL on FreeBSD (at least)
gethostbyaddrrstyle=""
AC_MSG_CHECKING([gethostbyaddr_r() syntax])
case "$host" in
*-freebsd*)
	AC_DEFINE(GETHOSTBYADDRRSTYLE, BSDSTYLE)
	gethostbyaddrrstyle=BSD
	AC_MSG_WARN([FreeBSD overridden to BSD-style])
	;;
esac
if test "x$gethostbyaddrrstyle" = "x"; then
	AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyaddr_r(NULL, 0, 0, NULL, NULL, 0, NULL, NULL) ], [
	AC_DEFINE(GETHOSTBYADDRRSTYLE, GNUSTYLE)
	gethostbyaddrrstyle=GNU
])
fi
if test "x$gethostbyaddrrstyle" = "x"; then
	AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyaddr_r(NULL, 0, 0, NULL, NULL, 0, NULL) ] , [
		AC_DEFINE(GETHOSTBYADDRRSTYLE, SYSVSTYLE)
		gethostbyaddrrstyle=SYSV
	])
fi
if test "x$gethostbyaddrrstyle" = "x"; then
	AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyaddr(NULL, 0, 0)  ], [
		AC_DEFINE(GETHOSTBYADDRRSTYLE, BSDSTYLE)
		gethostbyaddrrstyle=BSD
	])
fi

if test "x$gethostbyaddrrstyle" = "x"; then
	AC_MSG_RESULT([none!  It must not exist, here.])
else
	AC_MSG_RESULT([${gethostbyaddrrstyle}-style])
fi

if test "x$gethostbyaddrrstyle" = "xBSD"; then
	AC_MSG_WARN([ ****** BSD-style gethostbyaddr might NOT be thread-safe! ****** ])
fi

dnl Check the style of gethostbyname, in order of preference
dnl GNU (_r seven args)
dnl SYSV (_r five args)
dnl BSD (two args, may not be thread safe)
dnl Tru64 has BSD version, but it _is_ thread safe
dnl 	http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/1946____.HTM
dnl We need #stdio.h to define NULL on FreeBSD (at least)
gethostbynamerstyle=""
AC_MSG_CHECKING([gethostbyname_r() syntax])
AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyname_r(NULL, NULL, NULL, 0, NULL, NULL) ], [
	AC_DEFINE(GETHOSTBYNAMERSTYLE, GNUSTYLE)
	gethostbynamerstyle=GNU
])
if test "x$gethostbynamerstyle" = "x"; then
	AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyname_r(NULL, NULL, NULL, 0, NULL) ] , [
		AC_DEFINE(GETHOSTBYNAMERSTYLE, SYSVSTYLE)
		gethostbynamerstyle=SYSV
	])
fi
if test "x$gethostbynamerstyle" = "x"; then
	AC_TRY_LINK([
#include <stdio.h>
#include <netdb.h>
], [ gethostbyname(NULL)  ], [
		AC_DEFINE(GETHOSTBYNAMERSTYLE, BSDSTYLE)
		gethostbynamerstyle=BSD
	])
fi

if test "x$gethostbynamerstyle" = "x"; then
	AC_MSG_RESULT([none!  It must not exist, here.])
else
	AC_MSG_RESULT([${gethostbynamerstyle}-style])
fi

if test "x$gethostbynamerstyle" = "xBSD"; then
	AC_MSG_WARN([ ****** BSD-style gethostbyname might NOT be thread-safe! ****** ])
fi

dnl check for non-posix solaris ctime_r (extra buflen int arg)
ctimerstyle=""
AC_MSG_CHECKING([ctime_r() syntax])
AC_TRY_LINK([
#include <time.h>
], [ ctime_r(NULL, NULL, 0) ], [
	AC_DEFINE(CTIMERSTYLE, SOLARISSTYLE)
	ctimerstyle="SOLARIS"
])
if test "x$ctimerstyle" = "x"; then
	AC_TRY_LINK([
#include <time.h>
], [ ctime_r(NULL, NULL) ], [
		AC_DEFINE(CTIMERSTYLE, POSIXSTYLE)
		ctimerstyle="POSIX"
	])
fi

if test "x$ctimerstyle" = "x"; then
	AC_MSG_RESULT([none!  It must not exist, here.])
else
        AC_MSG_RESULT([${ctimerstyle}-style])
fi


dnl If configuring with large file support, determine the right flags to
dnl use based on the platform.  This is the wrong approach; autoconf 2.50
dnl comes with a macro that takes the right approach.  But this works well
dnl enough until we switch to autoconf 2.50 or later.
if test x"$rad_enable_largefiles" = xyes ; then
    AC_MSG_CHECKING(for largefile linkage)
    case "$host" in
    *-aix4.[01]*)
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([AIX before 4.2 does not support large files])
        ;;
    *-aix4*)
        AC_MSG_RESULT(ok)
        LFS_CFLAGS="-D_LARGE_FILES"
        LFS_LDFLAGS=""
        LFS_LIBS=""
        ;;
    *-hpux*)
        AC_MSG_RESULT(ok)
        LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
        LFS_LDFLAGS=""
        LFS_LIBS=""
        ;;
    *-irix*)
        AC_MSG_RESULT(no)
        AC_MSG_ERROR([Large files not supported on this platform])
        ;;
    *-linux*)
        AC_MSG_RESULT(maybe)
        LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
        LFS_LDFLAGS=""
        LFS_LIBS=""
        AC_DEFINE([_GNU_SOURCE], 1,
                  [Some versions of glibc need this defined for pread/pwrite.])
        ;;
    *-solaris*)
        AC_MSG_RESULT(ok)
        AC_PATH_PROG(GETCONF, getconf)
        if test -z "$GETCONF" ; then
            AC_MSG_ERROR([getconf required to configure large file support])
        fi
        LFS_CFLAGS=`$GETCONF LFS_CFLAGS`
        LFS_LDFLAGS=`$GETCONF LFS_LDFLAGS`
        LFS_LIBS=`$GETCONF LFS_LIBS`
        ;;
    *)
        AC_MSG_RESULT(maybe)
        LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
        LFS_LDFLAGS=""
        LFS_LIBS=""
        ;;
    esac
    AC_SUBST(LFS_CFLAGS)
    AC_SUBST(LFS_LDFLAGS)
    AC_SUBST(LFS_LIBS)
fi

AC_SUBST(HOSTINFO, $host)

dnl #############################################################
dnl #
dnl #  8. Checks for system services
dnl #
dnl #############################################################

dnl #
dnl # Figure out where libtool is located,
dnl #
top_builddir=`pwd`
export top_builddir
AC_MSG_RESULT([top_builddir=$top_builddir])
dnl # AC_SUBST(top_builddir)
AC_SUBST(LIBLTDL)
AC_SUBST(INCLTDL)

dnl #
dnl #  Work around stupid autoconf crap
dnl #
if test "x$INCLTDL" != "x";then
  INCLTDL='-I${top_builddir}/''libltdl'
fi

dnl import libtool stuff

dnl #############################################################
dnl #
dnl #  Configure in any module directories.
dnl #
dnl #############################################################

mysubdirs=
if test "x$EXPERIMENTAL" = "xyes"; then
  bar=`ls -1 src/modules/rlm_*/configure | sed 's%/configure%%'`
  dnl # get rid of LF's.
  mysubdirs=`echo $bar`
else
  dnl # 
  dnl # Find 'configure' in ONLY the stable modules
  dnl # 
  for bar in `cat src/modules/stable`; do
    if test -f src/modules/$bar/configure; then
      mysubdirs="$mysubdirs src/modules/$bar"
    fi
  done
fi

dnl ############################################################
dnl # make modules by list
dnl #############################################################
MODULES=
if test "x$EXPERIMENTAL" = "xyes"; then
  for foo in `ls -1 src/modules | grep rlm_`; do
    MODULES="$MODULES $foo"
  done
else
   dnl #
   dnl # make ONLY the stable modules
   dnl #
   for foo in `cat src/modules/stable`; do
    MODULES="$MODULES $foo"
   done
fi

dnl #
dnl #  Don't change the variable name here.  Autoconf goes bonkers
dnl #  if you do.
dnl #
AC_CONFIG_SUBDIRS($mysubdirs)
AC_SUBST(MODULES)

dnl #############################################################
dnl #
dnl #  And finally, output the results.
dnl #
dnl #############################################################

dnl #
dnl #  Substitute whatever libraries we found to be necessary
dnl #
AC_SUBST(LIBS)
AC_SUBST(INSTALLSTRIP)

USE_SHARED_LIBS=$enable_shared
AC_SUBST(USE_SHARED_LIBS)
USE_STATIC_LIBS=$enable_static
AC_SUBST(USE_STATIC_LIBS)
AC_SUBST(STATIC_MODULES)
AC_SUBST(RADIUSD_MAJOR_VERSION)
AC_SUBST(RADIUSD_MINOR_VERSION)
AC_SUBST(RADIUSD_VERSION)
export CFLAGS LIBS

AC_OUTPUT(\
	./Make.inc \
	./src/include/build-radpaths-h \
	./src/main/Makefile \
	./src/main/checkrad.pl \
	./src/main/radlast \
	./src/main/radtest \
	./scripts/rc.radiusd \
	./scripts/radwatch \
	./scripts/check-radiusd-config \
	./scripts/radiusd.cron.daily \
	./scripts/radiusd.cron.monthly \
	./scripts/cryptpasswd \
	./raddb/dictionary \
	./raddb/radiusd.conf
)

AC_OUTPUT_COMMANDS([echo timestamp > src/include/stamp-h])
AC_OUTPUT_COMMANDS([(cd ./src/include && /bin/sh ./build-radpaths-h)])
AC_OUTPUT_COMMANDS([(cd ./src/main   && chmod +x checkrad.pl radlast radtest)])
AC_OUTPUT_COMMANDS([(cd ./scripts    && chmod +x rc.radiusd radwatch check-radiusd-config radiusd.cron.daily radiusd.cron.monthly cryptpasswd)])