configure.ac

			AC_LINK_IFELSE(
				[AC_LANG_PROGRAM(
					[#include <stdio.h>
					#include <imap/c-client.h>
					void mm_searched (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_exists (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_expunged (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_flags (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_notify (MAILSTREAM *stream,char *string,long errflg)
					{
					}
					void mm_list (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
					{
					}
					void mm_lsub (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
					{
					}
					void mm_status (MAILSTREAM *stream,char *mailbox,MAILSTATUS *status)
					{
					}
					void mm_log (char *string,long errflg)
					{
					}
					void mm_dlog (char *string)
					{
					}
					void mm_login (NETMBX *mb,char *user,char *pwd,long trial)
					{
					}
					void mm_critical (MAILSTREAM *stream)
					{
					}
					void mm_nocritical (MAILSTREAM *stream)
					{
					}
					long mm_diskerror (MAILSTREAM *stream,long errcode,long serious)
					{
					}
					void mm_fatal (char *string)
					{
					}],
					[
					long check = mail_expunge_full(NULL, "", 0);
					]
				)],
				[ac_cv_imap_tk2006="yes"],
				[ac_cv_imap_tk2006="no"]
			)
		else #looking in imap directory didn't work, try c-client
			imap_ldflags=""
			imap_libs="-lcrypto -lssl -lc-client"
			imap_include="-DUSE_SYSTEM_CCLIENT"
			CPPFLAGS="${saved_cppflags}"
			LIBS="${saved_libs}"
			CPPFLAGS="${CPPFLAGS} ${imap_include}"
			LIBS="${LIBS} ${imap_libs} "`echo ${imap_ldflags}`
			AC_LINK_IFELSE(
	    		[AC_LANG_PROGRAM(
					[#include <stdio.h>
					#include <c-client/c-client.h>
					void mm_searched (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_exists (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_expunged (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_flags (MAILSTREAM *stream,unsigned long number)
					{
					}
					void mm_notify (MAILSTREAM *stream,char *string,long errflg)
					{
					}
					void mm_list (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
					{
					}
					void mm_lsub (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
					{
					}
					void mm_status (MAILSTREAM *stream,char *mailbox,MAILSTATUS *status)
					{
					}
					void mm_log (char *string,long errflg)
					{
					}
					void mm_dlog (char *string)
					{
					}
					void mm_login (NETMBX *mb,char *user,char *pwd,long trial)
					{
					}
					void mm_critical (MAILSTREAM *stream)
					{
					}
					void mm_nocritical (MAILSTREAM *stream)
					{
					}
					long mm_diskerror (MAILSTREAM *stream,long errcode,long serious)
					{
					}
					void mm_fatal (char *string)
					{
					}],
					[
					MAILSTREAM *foo = mail_open(NULL, "", 0);
					]
				)],
				[ac_cv_imap_tk="yes"],
				[ac_cv_imap_tk="no"]
	   		)
			if test "${ac_cv_imap_tk}" = "no"; then
				imap_libs="-lcrypto -lssl -lc-client4"
				LIBS="${saved_libs} ${imap_libs} "`echo ${imap_ldflags}`
				AC_LINK_IFELSE(
					[AC_LANG_PROGRAM(
						[#include <stdio.h>
						#include <c-client/c-client.h>
						void mm_searched (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_exists (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_expunged (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_flags (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_notify (MAILSTREAM *stream,char *string,long errflg)
						{
						}
						void mm_list (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
						{
						}
						void mm_lsub (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
						{
						}
						void mm_status (MAILSTREAM *stream,char *mailbox,MAILSTATUS *status)
						{
						}
						void mm_log (char *string,long errflg)
						{
						}
						void mm_dlog (char *string)
						{
						}
						void mm_login (NETMBX *mb,char *user,char *pwd,long trial)
						{
						}
						void mm_critical (MAILSTREAM *stream)
						{
						}
						void mm_nocritical (MAILSTREAM *stream)
						{
						}
						long mm_diskerror (MAILSTREAM *stream,long errcode,long serious)
						{
						}
						void mm_fatal (char *string)
						{
						}],
						[
						MAILSTREAM *foo = mail_open(NULL, "", 0);
						]
					)],
					[ac_cv_imap_tk="yes"],
					[ac_cv_imap_tk="no"]
				)
			fi
			if test "${ac_cv_imap_tk}" = "yes"; then
				AC_LINK_IFELSE(
					[AC_LANG_PROGRAM(
						[#include <stdio.h>
						#include <c-client/c-client.h>
						void mm_searched (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_exists (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_expunged (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_flags (MAILSTREAM *stream,unsigned long number)
						{
						}
						void mm_notify (MAILSTREAM *stream,char *string,long errflg)
						{
						}
						void mm_list (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
						{
						}
						void mm_lsub (MAILSTREAM *stream,int delimiter,char *mailbox,long attributes)
						{
						}
						void mm_status (MAILSTREAM *stream,char *mailbox,MAILSTATUS *status)
						{
						}
						void mm_log (char *string,long errflg)
						{
						}
						void mm_dlog (char *string)
						{
						}
						void mm_login (NETMBX *mb,char *user,char *pwd,long trial)
						{
						}
						void mm_critical (MAILSTREAM *stream)
						{
						}
						void mm_nocritical (MAILSTREAM *stream)
						{
						}
						long mm_diskerror (MAILSTREAM *stream,long errcode,long serious)
						{
						}
						void mm_fatal (char *string)
						{
						}],
						[
						long check = mail_expunge_full(NULL, "", 0);
						]
					)],
					[ac_cv_imap_tk2006="yes"],
					[ac_cv_imap_tk2006="no"]
				)
			fi
		fi
	fi
	if test "${ac_cv_imap_tk}" = "yes"; then
		AC_MSG_RESULT(yes)
		IMAP_TK_LIB="${imap_libs} "`echo ${imap_ldflags}`
		IMAP_TK_INCLUDE="${imap_include}"
		PBX_IMAP_TK=1
		AC_DEFINE([HAVE_IMAP_TK], 1, [Define if your system has the UW IMAP Toolkit c-client library.])
		if test "${ac_cv_imap_tk2006}" = "yes"; then
			AC_DEFINE([HAVE_IMAP_TK2006], 1, [Define if your system has the UW IMAP Toolkit c-client library version 2006 or greater.])
		fi
	else
		AC_MSG_RESULT(no)
	fi
	CPPFLAGS="${saved_cppflags}"
	LIBS="${saved_libs}"
fi

AST_EXT_LIB_CHECK([IODBC], [iodbc], [SQLConnect], [sql.h], [${PTHREAD_LIBS}], [${PTHREAD_CFLAGS}])

AST_EXT_LIB_CHECK([INOTIFY], [c], [inotify_init], [sys/inotify.h])

AST_EXT_LIB_CHECK([JACK], [jack], [jack_activate], [jack/jack.h])

# BSD (and OS X) equivalent of inotify
AST_EXT_LIB_CHECK([KQUEUE], [c], [kqueue], [sys/event.h])

# 64-bit version of kevent (from kqueue) on OS X
AC_CHECK_FUNCS([kevent64])

AST_EXT_LIB_CHECK([LDAP], [ldap], [ldap_initialize], [ldap.h])

AST_EXT_LIB_CHECK([MISDN], [mISDN], [mISDN_open], [mISDNuser/mISDNlib.h])

if test "${PBX_MISDN}" = 1; then
   AST_EXT_LIB_CHECK([ISDNNET], [isdnnet], [init_manager], [mISDNuser/isdn_net.h], [-lmISDN -lpthread])
   AST_EXT_LIB_CHECK([SUPPSERV], [suppserv], [encodeFac], [mISDNuser/suppserv.h])
   AST_C_DEFINE_CHECK([MISDN_FAC_RESULT], [Fac_RESULT], [mISDNuser/suppserv.h])
   AST_C_DEFINE_CHECK([MISDN_FAC_ERROR], [Fac_ERROR], [mISDNuser/suppserv.h])
   AC_CHECK_HEADER([linux/mISDNdsp.h], [AC_DEFINE_UNQUOTED([MISDN_1_2], 1, [Build chan_misdn for mISDN 1.2 or later.])])
   AC_CHECK_MEMBER([Q931_info_t.redirect_dn], [], [PBX_MISDN=0], [#include <mISDNuser/mISDNlib.h>])
fi


AST_EXT_TOOL_CHECK([MYSQLCLIENT], [mysql_config])

if test "${PBX_MYSQLCLIENT}" = 1; then
   AC_MSG_CHECKING(for MySQL client bool support)
   AC_LINK_IFELSE(
           [AC_LANG_PROGRAM([#include <mysql/mysql.h>],
                   [bool test = 1;])],
           AC_MSG_RESULT(yes)
           AC_DEFINE(HAVE_MYSQLCLIENT_BOOL, 1, [Define to 1 if mysql/mysql.h has bool defined.]),
           AC_MSG_RESULT(no)
   )
   AC_MSG_CHECKING(for MySQL client my_bool support)
   AC_LINK_IFELSE(
           [AC_LANG_PROGRAM([#include <mysql/mysql.h>],
                   [my_bool test = 1;])],
           AC_MSG_RESULT(yes)
           AC_DEFINE(HAVE_MYSQLCLIENT_MY_BOOL, 1, [Define to 1 if mysql/mysql.h has my_bool defined.]),
           AC_MSG_RESULT(no)
   )
fi

AST_EXT_LIB_CHECK([NBS], [nbs], [nbs_connect], [nbs.h])

AST_EXT_TOOL_CHECK([NEON], [neon-config])

AST_EXT_TOOL_CHECK([NEON29], [neon-config], , [--libs],
[#include <ne_auth.h>],
[#ifndef NE_AUTH_NTLM
#error Need libneon >= 0.29.0
#endif])

AST_EXT_TOOL_CHECK([NETSNMP], [net-snmp-config], , [--agent-libs],
[#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>],
[int callback = snmp_register_callback(0, 0, NULL, NULL)])

AST_EXT_LIB_CHECK([NEWT], [newt], [newtBell], [newt.h])

# Check that unbound is installed and the version code fragment compiles
AST_EXT_LIB_EXTRA_CHECK([UNBOUND], [unbound], [ub_ctx_delete], [unbound.h],
   [], [], [
      AC_LANG_PROGRAM( [#include <unbound.h>],
         [
            #if (UNBOUND_VERSION_MAJOR < 1 || (UNBOUND_VERSION_MAJOR == 1 && UNBOUND_VERSION_MINOR < 5 ))
            #error "Unbound version must be >= 1.5"
            #endif
         ]
      )
   ], [unbound version >= 1.5])

AST_EXT_LIB_CHECK([UNIXODBC], [odbc], [SQLConnect], [sql.h])

AST_EXT_LIB_CHECK([OGG], [ogg], [ogg_stream_init], [ogg/ogg.h])

# Non-glibc platforms require libexecinfo for backtrace support
AST_EXT_LIB_CHECK([BKTR], [execinfo], [backtrace], [execinfo.h])
# Linux, however, has backtrace directly in glibc
AST_EXT_LIB_CHECK([BKTR], [c], [backtrace], [execinfo.h])

AST_EXT_LIB_CHECK([BLUETOOTH], [bluetooth], [ba2str], [bluetooth/bluetooth.h])

AST_EXT_LIB_CHECK([BEANSTALK], [beanstalk], [bs_version], [beanstalk.h])

# possible places for oss definitions
AST_EXT_LIB_CHECK([OSS], [ossaudio], [], [linux/soundcard.h])
AST_EXT_LIB_CHECK([OSS], [ossaudio], [], [sys/soundcard.h])
AST_EXT_LIB_CHECK([OSS], [ossaudio], [oss_ioctl_mixer], [soundcard.h])

PG_CONFIG=No
if test "${USE_PGSQL}" != "no"; then
   if test "x${PGSQL_DIR}" != "x"; then
      AC_PATH_TOOL([PG_CONFIG], [pg_config], No, [${PGSQL_DIR}/bin])
      if test x"${PG_CONFIG}" = xNo; then
         AC_MSG_NOTICE([***])
         AC_MSG_NOTICE([*** pg_config was not found in the path you specified:])
         AC_MSG_NOTICE([*** ${PGSQL_DIR}/bin])
         AC_MSG_NOTICE([*** Either correct the installation, or run configure])
         AC_MSG_NOTICE([*** including --without-postgres])
         exit 1
      fi
   else
      AC_PATH_TOOL([PG_CONFIG], [pg_config], No)
   fi
fi
if test "${PG_CONFIG}" != No; then
   PGSQL_libdir=`${PG_CONFIG} --libdir`
   PGSQL_includedir=`${PG_CONFIG} --includedir`
   if test "x$?" != "x0" ; then
      if test -n "${PGSQL_MANDATORY}" ; then
         AC_MSG_NOTICE([***])
         AC_MSG_NOTICE([*** The PostgreSQL installation on this system appears to be broken.])
         AC_MSG_NOTICE([*** Either correct the installation, or run configure])
         AC_MSG_NOTICE([*** including --without-postgres])
         exit 1
	  fi
   else
      AC_CHECK_LIB([pq], [PQescapeStringConn], AC_DEFINE_UNQUOTED([HAVE_PGSQL], 1,
      [Define to indicate the PostgreSQL library]), [], -L${PGSQL_libdir} -lz)

      AC_MSG_CHECKING(for pg_encoding_to_char within Postgres headers)
      old_CFLAGS=${CFLAGS}
      CFLAGS="${CFLAGS} -I${PGSQL_includedir} -Werror"
      old_LDFLAGS=${LDFLAGS}
      LDFLAGS="${LDFLAGS} -L${PGSQL_libdir} -lpq -lz"
      AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <libpq-fe.h>],
          [const char *foo = pg_encoding_to_char(1)])],
        [AC_MSG_RESULT(yes)
         AC_DEFINE_UNQUOTED([HAVE_PGSQL_pg_encoding_to_char], 1, [Define to indicate presence of the pg_encoding_to_char API.])],
        [AC_MSG_RESULT(no)])
      CFLAGS=${old_CFLAGS}
      LDFLAGS=${old_LDFLAGS}

      if test "${ac_cv_lib_pq_PQescapeStringConn}" = "yes"; then
         PGSQL_LIB="-L${PGSQL_libdir} -lpq -lz"
         PGSQL_INCLUDE="-I${PGSQL_includedir}"
         PBX_PGSQL=1
      elif test -n "${PGSQL_MANDATORY}";
      then
         AC_MSG_NOTICE([***])
         AC_MSG_NOTICE([*** The PostgreSQL installation on this system appears to be broken.])
         AC_MSG_NOTICE([*** Either correct the installation, or run configure])
         AC_MSG_NOTICE([*** including --without-postgres])
         exit 1
      fi
   fi
fi

if test "$USE_PJPROJECT" != "no" ; then
   if test "$PJPROJECT_BUNDLED" = "no" ; then
      AST_PKG_CONFIG_CHECK([PJPROJECT], [libpjproject])
      if test "x$PBX_PJPROJECT" = "x1" ; then
         AST_EXT_LIB_CHECK([PJSIP_DLG_CREATE_UAS_AND_INC_LOCK], [pjsip], [pjsip_dlg_create_uas_and_inc_lock], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJ_TRANSACTION_GRP_LOCK], [pjsip], [pjsip_tsx_create_uac2], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])

         saved_cppflags="${CPPFLAGS}"
         saved_libs="${LIBS}"
         CPPFLAGS="${CPPFLAGS} ${PJPROJECT_CFLAGS}"
         LIBS="${LIBS} ${PJPROJECT_LIB}"
         AST_C_COMPILE_CHECK([PJSIP_REPLACE_MEDIA_STREAM], [pjmedia_mod_offer_flag flag = PJMEDIA_SDP_NEG_ALLOW_MEDIA_CHANGE], [pjmedia.h])
         LIBS="${saved_libs}"
         CPPFLAGS="${saved_cppflags}"

         AST_EXT_LIB_CHECK([PJSIP_GET_DEST_INFO], [pjsip], [pjsip_get_dest_info], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJ_SSL_CERT_LOAD_FROM_FILES2], [pj], [pj_ssl_cert_load_from_files2], [pjlib.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJSIP_EXTERNAL_RESOLVER], [pjsip], [pjsip_endpt_set_ext_resolver], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])

         saved_cppflags="${CPPFLAGS}"
         saved_libs="${LIBS}"
         CPPFLAGS="${CPPFLAGS} ${PJPROJECT_CFLAGS}"
         LIBS="${LIBS} ${PJPROJECT_LIB}"
         AST_C_COMPILE_CHECK([PJSIP_TLS_TRANSPORT_PROTO], [struct pjsip_tls_setting setting; int proto; proto = setting.proto;], [pjsip.h])
         AST_C_COMPILE_CHECK([PJSIP_INV_ACCEPT_MULTIPLE_SDP_ANSWERS], [pjsip_cfg()->endpt.accept_multiple_sdp_answers = 0;], [pjsip.h])
         AST_C_COMPILE_CHECK([PJSIP_ENDPOINT_COMPACT_FORM], [pjsip_cfg()->endpt.use_compact_form = PJ_TRUE;], [pjsip.h])
         AST_C_COMPILE_CHECK([PJSIP_TRANSPORT_DISABLE_CONNECTION_REUSE], [struct pjsip_tpselector sel; sel.disable_connection_reuse = PJ_TRUE;], [pjsip.h])
         AST_C_COMPILE_CHECK([PJSIP_OAUTH_AUTHENTICATION], [struct pjsip_oauth_credential credential;], [pjsip.h])
         AC_MSG_CHECKING(for pjproject on_valid_pair callback)
         AC_LINK_IFELSE(
            [AC_LANG_PROGRAM(
               [#include <pjsip.h>
               #include <pjsip_ua.h>
               #include <pjnath.h>
               void on_valid_pair(pj_ice_sess *ice) {}
               void on_ice_complete(pj_ice_sess *ice, pj_status_t status) {}
               void on_rx_data(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, void *pkt, pj_size_t size, const pj_sockaddr_t *src_addr, unsigned src_addr_len) {}
               pj_status_t on_tx_pkt(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, const void *pkt, pj_size_t size, const pj_sockaddr_t *dst_addr, unsigned dst_addr_len) {}],
               [pj_ice_sess_cb ice_sess_cb = {
                  .on_valid_pair = on_valid_pair,
                  .on_ice_complete = on_ice_complete,
                  .on_rx_data = on_rx_data,
                  .on_tx_pkt = on_tx_pkt,
               };])],
            AC_MSG_RESULT(yes)
            AC_DEFINE(HAVE_PJPROJECT_ON_VALID_ICE_PAIR_CALLBACK, 1, [Define to 1 if on_valid_pair callback is present.]),
            AC_MSG_RESULT(no)
         )
         LIBS="${saved_libs}"
         CPPFLAGS="${saved_cppflags}"

         AST_EXT_LIB_CHECK([PJSIP_EVSUB_GRP_LOCK], [pjsip], [pjsip_evsub_add_ref], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJSIP_INV_SESSION_REF], [pjsip], [pjsip_inv_add_ref], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJSIP_AUTH_CLT_DEINIT], [pjsip], [pjsip_auth_clt_deinit], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
         AST_EXT_LIB_CHECK([PJSIP_TSX_LAYER_FIND_TSX2], [pjsip], [pjsip_tsx_layer_find_tsx2], [pjsip.h], [$PJPROJECT_LIB], [$PJPROJECT_CFLAGS])
      fi
   fi

   if test "x$PBX_PJPROJECT" = "x1" ; then
      if test "x${AST_DEVMODE}" = "xyes" ; then
         AC_SUBST([PYTHONDEV_LIB])
         AC_SUBST([PYTHONDEV_INCLUDE])
         AST_PKG_CONFIG_CHECK([PYTHONDEV], [python-2.7])
         AST_PKG_CONFIG_CHECK([PYTHONDEV], [python2])
         AST_PKG_CONFIG_CHECK([PYTHONDEV], [python])
         # The PJProject offers a C extension to Python. That wrapper is used by the
         # Asterisk Test Framework, which requires Asterisk to be in Developer Mode.
         # However, the used wrapper (called 'PJSUA Python') is deprecated and was not
         # ported from Python 2.7 to Python 3.x. This is confirmed; it simply does not
         # build. For more see <http://www.pjsip.org/trac/wiki/Python_SIP_Tutorial>.
         # Therefore, the C libraries for Python 3 are of no help in Asterisk:
         #AST_PKG_CONFIG_CHECK([PYTHONDEV], [python3])
      fi
   fi
fi

AST_EXT_LIB_CHECK([POPT], [popt], [poptStrerror], [popt.h])

AST_PKG_CONFIG_CHECK([PORTAUDIO], [portaudio-2.0])
AST_EXT_LIB_CHECK([PORTAUDIO], [portaudio], [Pa_GetDeviceCount], [portaudio.h])

AST_EXT_LIB_CHECK([PRI], [pri], [pri_connected_line_update], [libpri.h])
if test "x$PBX_PRI" = "x1" ; then
   AST_EXT_LIB_CHECK([PRI_SETUP_ACK_INBAND], [pri], [pri_setup_ack], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_L2_PERSISTENCE], [pri], [pri_persistent_layer2_option], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_DATETIME_SEND], [pri], [pri_date_time_send_option], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_MWI_V2], [pri], [pri_mwi_indicate_v2], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_DISPLAY_TEXT], [pri], [pri_display_text], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_MWI], [pri], [pri_mwi_indicate], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_MCID], [pri], [pri_mcid_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_CALL_WAITING], [pri], [pri_connect_ack_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_AOC_EVENTS], [pri], [pri_aoc_events_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_TRANSFER], [pri], [pri_transfer_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_CCSS], [pri], [pri_cc_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_HANGUP_FIX], [pri], [pri_hangup_fix_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_SUBADDR], [pri], [pri_sr_set_called_subaddress], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_CALL_HOLD], [pri], [pri_hold_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_CALL_REROUTING], [pri], [pri_reroute_enable], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_SETUP_KEYPAD], [pri], [pri_sr_set_keypad_digits], [libpri.h])

   # ------------------------------------v
   # TODO: The code can be changed to always include these features now.
   # These features will always be present if pri_connected_line_update is available.
   AST_EXT_LIB_CHECK([PRI_PROG_W_CAUSE], [pri], [pri_progress_with_cause], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_INBANDDISCONNECT], [pri], [pri_set_inbanddisconnect], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_SERVICE_MESSAGES], [pri], [pri_maintenance_service], [libpri.h])
   AST_EXT_LIB_CHECK([PRI_REVERSE_CHARGE], [pri], [pri_sr_set_reversecharge], [libpri.h])
   # ------------------------------------^
fi

AST_EXT_LIB_CHECK([RESAMPLE], [resample], [resample_open], [libresample.h], [-lm])
AST_EXT_LIB_CHECK([FFTW3], [fftw3], [fftw_malloc], [fftw3.h])
AST_EXT_LIB_CHECK([SNDFILE], [sndfile], [sf_open], [sndfile.h])

AST_C_COMPILE_CHECK([SPANDSP], [
		#if SPANDSP_RELEASE_DATE < 20080516
		#error "spandsp 0.0.5 or greater is required"
		#endif
	], [spandsp/version.h], , [minimum version of SpanDSP])

if test "x${PBX_SPANDSP}" = "x1" ; then
	# We found the correct version in the header, now let's make sure it links
	# properly, and that libtiff is available
	PBX_SPANDSP=0
	AST_EXT_LIB_CHECK([SPANDSP], [spandsp], [span_set_message_handler], [spandsp.h], [-ltiff])
fi

if test "x${PBX_SPANDSP}" = "x1" ; then
	# We also need t38_terminal_init()
	PBX_SPANDSP=0
	AST_EXT_LIB_CHECK([SPANDSP], [spandsp], [t38_terminal_init], [spandsp.h], [-ltiff])
fi

# Check for libss7 v2.0 branch compatible version.
AST_EXT_LIB_CHECK([SS7], [ss7], [ss7_set_isup_timer], [libss7.h])

AST_EXT_LIB_CHECK([OPENR2], [openr2], [openr2_chan_new], [openr2.h])

AST_EXT_LIB_CHECK([OPUS], [opus], [opus_encoder_create], [opus/opus.h])
# opusfile.h includes <opus_multistream.h> so we need to make sure that
# either $OPUS_INCLUDE or /usr/include/opus is added to the search path.
__opus_include=${OPUS_INCLUDE}
if test -z "$__opus_include" -o x"$__opus_include" = x" " ; then
	__opus_include=-I/usr/include/opus
fi
AST_EXT_LIB_CHECK([OPUSFILE], [opusfile], [op_open_callbacks], [opus/opusfile.h], [], [$__opus_include])

for ver in ${LUA_VERSIONS:-5.4 5.3 5.2 5.1}; do
	AST_EXT_LIB_CHECK([LUA], lua${ver}, [luaL_newstate], lua${ver}/lua.h, [-lm])
	if test "x${PBX_LUA}" = "x1" ; then
		if test x"${LUA_DIR}" = x; then
			LUA_INCLUDE="${LUA_INCLUDE} -I/usr/include/lua${ver}"
		else
			LUA_INCLUDE="${LUA_INCLUDE} -I${LUA_DIR}/lua${ver}"
		fi
		break;
	fi
done

# Some distributions (like openSUSE and NetBSD) remove the 5.x suffix.
if test "x${LUA_VERSIONS}" = "x"; then
	AST_EXT_LIB_CHECK([LUA], [lua], [luaL_newstate], [lua.h], [-lm])
fi

# Accept either RADIUS client library, their APIs are fully compatible,
# just different header filenames and different SONAMEs
AST_EXT_LIB_CHECK([RADIUS], [freeradius-client], [rc_read_config], [freeradius-client.h])
if test "x${PBX_RADIUS}" = "x1"; then
	AC_DEFINE(RADIUS_HEADER_STR, [<freeradius-client.h>], [Name of RADIUS library include header])
else
	AST_EXT_LIB_CHECK([RADIUS], [radiusclient-ng], [rc_read_config], [radiusclient-ng.h])
	if test "x${PBX_RADIUS}" = "x1"; then
		AC_DEFINE(RADIUS_HEADER_STR, [<radiusclient-ng.h>], [Name of RADIUS library include header])
	else
		AST_EXT_LIB_CHECK([RADIUS], [radcli], [rc_read_config], [radcli/radcli.h])
		if test "x${PBX_RADIUS}" = "x1"; then
			AC_DEFINE(RADIUS_HEADER_STR, [<radcli/radcli.h>], [Name of RADIUS library include header])
		fi
	fi
fi

AST_EXT_LIB_CHECK([CODEC2], [codec2], [codec2_create], [codec2/codec2.h])

AST_EXT_LIB_CHECK([COROSYNC], [cpg], [cpg_join], [corosync/cpg.h], [-lcpg -lcfg])
AST_EXT_LIB_CHECK([COROSYNC_CFG_STATE_TRACK], [cfg], [corosync_cfg_state_track], [corosync/cfg.h], [-lcfg])

AST_EXT_LIB_CHECK([SPEEX], [speex], [speex_encode], [speex/speex.h], [-lm])

# See if the main speex library contains the preprocess functions
AST_EXT_LIB_CHECK([SPEEX_PREPROCESS], [speex], [speex_preprocess_ctl], [speex/speex.h], [-lm])
if test "${PBX_SPEEX_PREPROCESS}" = 1; then
   PBX_SPEEX_PREPROCESS=1
fi

AST_EXT_LIB_CHECK([SPEEXDSP], [speexdsp], [speex_preprocess_ctl], [speex/speex.h], [-lm])
if test "${PBX_SPEEXDSP}" = 1; then
   PBX_SPEEX_PREPROCESS=1
fi

AC_SUBST(PBX_SPEEX_PREPROCESS)

AST_EXT_LIB_CHECK([SQLITE], [sqlite], [sqlite_exec], [sqlite.h])

AST_EXT_LIB_CHECK([SQLITE3], [sqlite3], [sqlite3_open], [sqlite3.h], [${PTHREAD_LIBS}], [${PTHREAD_CFLAGS}])

if test "${PBX_SQLITE3}" != 1; then
	AC_MSG_ERROR(*** Asterisk now uses SQLite3 for the internal Asterisk database.)
	AC_MSG_ERROR(*** Please install the SQLite3 development package.)
	exit 1
fi

# Find crypt support
# * -lcrypt on *NIX
# * in libsystem on OS X
AST_EXT_LIB_CHECK([LIBCRYPT], [crypt], [crypt], [crypt.h])
AC_CHECK_FUNC([crypt], [SYSCRYPT=true], [SYSCRYPT=""])

if test "x$LIBCRYPT_LIB" != "x" ; then
    CRYPT_LIB="$LIBCRYPT_LIB"
    CRYPT_INCLUDE="$LIBCRYPT_INCLUDE"
    AC_DEFINE([HAVE_CRYPT], [1], [Define to 1 if you have the 'crypt' function.])
elif test "x$SYSCRYPT" != "x" ; then
    CRYPT_LIB=""
    CRYPT_INCLUDE=""
    AC_DEFINE([HAVE_CRYPT], [1], [Define to 1 if you have the 'crypt' function.])
fi

AC_SUBST(CRYPT_LIB)
AC_SUBST(CRYPT_INCLUDE)

# Find crypt_r support
AC_CHECK_LIB([crypt], [crypt_r],
    [AC_DEFINE([HAVE_CRYPT_R], [1], [Define to 1 if you have the 'crypt_r' function.])])

AST_EXT_LIB_CHECK([CRYPTO], [crypto], [AES_encrypt], [openssl/aes.h])

if test "$PBX_CRYPTO" = "1";
then
	AST_EXT_LIB_CHECK([OPENSSL], [ssl], [SSL_connect], [openssl/ssl.h], [-lcrypto])
	AST_EXT_LIB_CHECK([OPENSSL_BIO_METHOD], [ssl], [BIO_meth_new], [openssl/ssl.h], [-lcrypto])
fi

if test "$PBX_OPENSSL" = "1";
then
        AST_CHECK_OSPTK([4], [0], [0])
fi

AST_EXT_LIB_CHECK([SRTP], [srtp2], [srtp_init], [srtp2/srtp.h], [], [], [2])
AST_EXT_LIB_CHECK_SHARED([SRTP], [srtp2], [srtp_init], [srtp2/srtp.h], [], [], [], [
    AC_MSG_WARN([***])
    AC_MSG_WARN([*** libsrtp2 could not be linked as a shared object.])
    AC_MSG_WARN([*** Try compiling libsrtp2 manually. Configure libsrtp2])
    AC_MSG_WARN([*** with ./configure --prefix=/usr replacing /usr with])
    AC_MSG_WARN([*** the prefix of your choice, and then make with])
    AC_MSG_WARN([*** 'make libsrtp2.so'])
    AC_MSG_WARN([***])
    AC_MSG_WARN([*** After re-installing libsrtp2, re-run the Asterisk])
    AC_MSG_WARN([*** configure script.])
    AC_MSG_WARN([***])
    AC_MSG_WARN([*** If you do not need SRTP support re-run configure])
    AC_MSG_WARN([*** with the --without-srtp option.])
    exit 1
])

if test "x$PBX_SRTP" = x1;
then
    AST_EXT_LIB_CHECK([SRTP_256], [srtp2], [srtp_crypto_policy_set_aes_cm_256_hmac_sha1_80])
    AST_EXT_LIB_CHECK([SRTP_192], [srtp2], [srtp_crypto_policy_set_aes_cm_192_hmac_sha1_80])
    AST_EXT_LIB_CHECK([SRTP_GCM], [srtp2], [srtp_crypto_policy_set_aes_gcm_128_8_auth])
    AST_EXT_LIB_CHECK([SRTP_SHUTDOWN], [srtp2], [srtp_shutdown], [srtp2/srtp.h])
    AST_EXT_LIB_CHECK([SRTP_GET_VERSION], [srtp2], [srtp_get_version_string], [srtp2/srtp.h])

    # libsrtp2 removed support for PRNG, so we require OpenSSL
    if test "x$PBX_OPENSSL" != x1;
    then
        AC_MSG_WARN([***])
        AC_MSG_WARN([*** OpenSSL required when using libsrtp2, checking for libsrtp instead.])
        AC_MSG_WARN([***])
	PBX_SRTP=0
    fi
fi

if test "x$PBX_SRTP" != x1;
then
    AST_EXT_LIB_CHECK([SRTP], [srtp], [srtp_init], [srtp/srtp.h], [], [], [1])
    AST_EXT_LIB_CHECK_SHARED([SRTP], [srtp], [srtp_init], [srtp/srtp.h], [], [], [], [
        AC_MSG_WARN([***])
        AC_MSG_WARN([*** libsrtp could not be linked as a shared object.])
        AC_MSG_WARN([*** Try compiling libsrtp manually. Configure libsrtp])
        AC_MSG_WARN([*** with ./configure CFLAGS=-fPIC --prefix=/usr])
        AC_MSG_WARN([*** replacing /usr with the prefix of your choice.])
        AC_MSG_WARN([*** After re-installing libsrtp, re-run the Asterisk])
        AC_MSG_WARN([*** configure script.])
        AC_MSG_WARN([***])
        AC_MSG_WARN([*** If you do not need SRTP support re-run configure])
        AC_MSG_WARN([*** with the --without-srtp option.])
        exit 1
    ])

    if test "x$PBX_SRTP" = x1;
    then
        AST_EXT_LIB_CHECK([SRTP_256], [srtp], [crypto_policy_set_aes_cm_256_hmac_sha1_80])
        AST_EXT_LIB_CHECK([SRTP_192], [srtp], [crypto_policy_set_aes_cm_192_hmac_sha1_80])
        AST_EXT_LIB_CHECK([SRTP_GCM], [srtp], [crypto_policy_set_aes_gcm_128_8_auth])
        AST_EXT_LIB_CHECK([SRTP_SHUTDOWN], [srtp], [srtp_shutdown], [srtp/srtp.h])
        AST_EXT_LIB_CHECK([SRTP_GET_VERSION], [srtp], [srtp_get_version_string], [srtp/srtp.h])
    fi
fi

for ver in 3.0 2.6 2.4 2.2 2.0; do
	AST_PKG_CONFIG_CHECK([GMIME], gmime-$ver)
	if test "$PBX_GMIME" = 1; then
		break;
	fi
done

AST_EXT_LIB_CHECK([HOARD], [hoard], [malloc], [])

AST_EXT_LIB_CHECK([FREETDS], [sybdb], [dbinit], [sybdb.h])

AC_CHECK_LIB([tonezone], [tone_zone_find_by_num], tonezone_does_not_need_lm=yes, tonezone_does_not_need_lm=no)

if test "${tonezone_does_not_need_lm}" = "no" ; then
  tonezone_extra="-lm"
fi

AST_EXT_LIB_CHECK([TONEZONE], [tonezone], [tone_zone_find], [dahdi/tonezone.h], [${tonezone_extra} ${DAHDI_INCLUDE}])

AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc -lvorbisfile])
AST_C_DECLARE_CHECK([VORBIS_OPEN_CALLBACKS], [OV_CALLBACKS_NOCLOSE], [vorbis/vorbisfile.h])

AC_LANG_PUSH(C++)

if test "${USE_VPB}" != "no"; then
   AC_MSG_CHECKING(for vpb_open in -lvpb)
   saved_libs="${LIBS}"
   saved_cppflags="${CPPFLAGS}"
   if test "x${VPB_DIR}" != "x"; then
      if test -d ${VPB_DIR}/lib; then
         vpblibdir=${VPB_DIR}/lib
      else
         vpblibdir=${VPB_DIR}
      fi
      LIBS="${LIBS} -L${vpblibdir}"
      CPPFLAGS="${CPPFLAGS} -I${VPB_DIR}/include"
   fi
   LIBS="${PTHREAD_LIBS} ${LIBS} -lvpb"
   CPPFLAGS="${CPPFLAGS} ${PTHREAD_CFLAGS}"
   AC_LINK_IFELSE(
	[
	AC_LANG_PROGRAM(
	[#include <vpbapi.h>],
	[int q = vpb_open(0,0);])
	],
	[	AC_MSG_RESULT(yes)
		ac_cv_lib_vpb_vpb_open="yes"
	],
	[	AC_MSG_RESULT(no)
		ac_cv_lib_vpb_vpb_open="no"
	]
	)
   LIBS="${saved_libs}"
   CPPFLAGS="${saved_cppflags}"
   if test "${ac_cv_lib_vpb_vpb_open}" = "yes"; then
	VPB_LIB="-lvpb"
	if test "${VPB_DIR}" != ""; then
	   VPB_LIB="-L${vpblibdir}  ${VPB_LIB}"
	   VPB_INCLUDE="-I${VPB_DIR}/include"
	fi
	PBX_VPB=1
	AC_DEFINE([HAVE_VPB], 1, [Define if your system has the VoiceTronix API libraries.])
   fi
fi

AC_LANG_POP

AST_EXT_LIB_CHECK([ZLIB], [z], [compress], [zlib.h])

if test "x${PBX_UNIXODBC}" = "x1" -o "x${PBX_IODBC}" = "x1"; then
	# Does ODBC support wide characters?
	AC_MSG_CHECKING(whether ODBC has support for Unicode types)
	AC_LINK_IFELSE(
		[AC_LANG_PROGRAM(
			[#include <sql.h>
#include <sqlext.h>],
			[int foo = SQL_WCHAR])],
		AC_MSG_RESULT(yes)
			AC_DEFINE([HAVE_ODBC_WCHAR], [1], [Define to 1 if your ODBC library has wide (Unicode) types.]),
		AC_MSG_RESULT(no)
	)
fi

AC_CHECK_HEADER([linux/compiler.h],
                [AC_DEFINE_UNQUOTED([HAVE_LINUX_COMPILER_H], 1, [Define to 1 if your system has linux/compiler.h.])])

AC_CHECK_HEADER([linux/ixjuser.h], [PBX_IXJUSER=1], [PBX_IXJUSER=0], [
				   #include <linux/version.h>
				   #ifdef HAVE_LINUX_COMPILER_H
				   #include <linux/compiler.h>
				   #endif
				   ])
AC_SUBST(PBX_IXJUSER)

# Used in res/res_pktccops
AST_C_DEFINE_CHECK([MSG_NOSIGNAL], [MSG_NOSIGNAL], [sys/socket.h])
AST_C_DEFINE_CHECK([SO_NOSIGPIPE], [SO_NOSIGPIPE], [sys/socket.h])

AST_EXT_TOOL_CHECK([SDL], [sdl-config])
AST_EXT_LIB_CHECK([SDL_IMAGE], [SDL_image], [IMG_Load], [SDL_image.h], [${SDL_LIB}], [${SDL_INCLUDE}])
AST_EXT_LIB_CHECK([FFMPEG], [avcodec], [sws_getContext], [ffmpeg/avcodec.h], [${PTHREAD_LIBS} -lz -lm], [${PTHREAD_CFLAGS}])

# possible places for video4linux version 1
AC_CHECK_HEADER([linux/videodev.h],
	[AC_DEFINE_UNQUOTED([HAVE_VIDEODEV_H], 1, [Define to 1 if your system has linux/videodev.h.])])

# possible places for X11
AST_EXT_LIB_CHECK([X11], [X11], [XOpenDisplay], [X11/Xlib.h],,, [standard_path])
AST_EXT_LIB_CHECK([X11], [X11], [XOpenDisplay], [X11/Xlib.h],, [-I/usr/X11R6/include], [X11R6])

PBX_LAUNCHD=0
if test "${cross_compiling}" = "no";
then
  AC_CHECK_FILE(/sbin/launchd,
    [PBX_LAUNCHD=1]
    AC_DEFINE([HAVE_SBIN_LAUNCHD], 1, [Define to 1 if your system has /sbin/launchd.]))
fi
AC_SUBST(PBX_LAUNCHD)

AST_PKG_CONFIG_CHECK([GTK2], [gtk+-2.0])

# build a GENERIC_ODBC result based on the presence of either UnixODBC (preferred)
# or iODBC

PBX_GENERIC_ODBC=0

if test "${PBX_UNIXODBC}" = 1; then
   PBX_GENERIC_ODBC=1
   GENERIC_ODBC_LIB="${UNIXODBC_LIB}"
   GENERIC_ODBC_INCLUDE="${UNIXODBC_INCLUDE}"
elif test "${PBX_IODBC}" = 1; then
   PBX_GENERIC_ODBC=1
   GENERIC_ODBC_LIB="${IODBC_LIB}"
   GENERIC_ODBC_INCLUDE="${IODBC_INCLUDE}"
fi

AC_SUBST([GENERIC_ODBC_LIB])
AC_SUBST([GENERIC_ODBC_INCLUDE])
AC_SUBST([PBX_GENERIC_ODBC])

AC_SUBST([PBX_SYSTEMD])
AC_SUBST([SYSTEMD_LIB])
AC_SUBST([SYSTEMD_INCLUDE])
AST_PKG_CONFIG_CHECK([SYSTEMD], [libsystemd])

PBX_SYSLOG=0

if test "${ac_cv_header_syslog_h}" = "yes"; then
   # syslog facilities
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_AUTH],     [LOG_AUTH],     [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_AUTHPRIV], [LOG_AUTHPRIV], [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_CRON],     [LOG_CRON],     [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_DAEMON],   [LOG_DAEMON],   [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_FTP],      [LOG_FTP],      [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_KERN],     [LOG_KERN],     [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_LPR],      [LOG_LPR],      [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_MAIL],     [LOG_MAIL],     [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_NEWS],     [LOG_NEWS],     [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_SYSLOG],   [LOG_SYSLOG],   [syslog.h])
   AST_C_DEFINE_CHECK([SYSLOG_FACILITY_LOG_UUCP],     [LOG_UUCP],     [syslog.h])
   PBX_SYSLOG=1
fi

AC_SUBST([PBX_SYSLOG])

if test -f makeopts; then
	${ac_cv_path_EGREP} 'CURSES|GTK2|OSARCH|NEWT' makeopts > makeopts.acbak
else
	touch makeopts.acbak
fi

# conf_bridge (binaural rendering): check if HRIRs are available
# this check does not work when cross-compiling
if test "${cross_compiling}" = "no"; then
    AC_CHECK_FILES([bridges/bridge_softmix/include/hrirs.h])
fi

AC_CONFIG_FILES([build_tools/menuselect-deps makeopts])
AST_CHECK_MANDATORY

if test -f build_tools/menuselect-deps; then
    # extract old values of all PBX_ variables from menuselect-deps
    # and preserve them so that menuselect can determine whether
    # any previously-met dependencies are no longer met and warn
    # the user appropriately
    while IFS="=:" read var val old_val; do
        eval "PBX_${var}=\${PBX_${var}}:${val}"
    done < build_tools/menuselect-deps
fi

AC_OUTPUT

${ac_cv_path_EGREP} 'CURSES|GTK2|OSARCH|NEWT' makeopts > makeopts.acbak2
if test "x${ac_cv_path_CMP}" = "x:"; then
	( cd "`pwd`/menuselect" && ./configure )
elif ${ac_cv_path_CMP} -s makeopts.acbak makeopts.acbak2; then : ; else
	( cd "`pwd`/menuselect" && ./configure )
fi

rm makeopts.acbak makeopts.acbak2


if test "x${silent}" != "xyes" ; then
echo
echo "               .\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$=..      "
echo "            .\$7\$7..          .7\$\$7:.    "
echo "          .\$\$:.                 ,\$7.7   "
echo "        .\$7.     7\$\$\$\$           .\$\$77  "
echo "     ..\$\$.       \$\$\$\$\$            .\$\$\$7 "
echo "    ..7\$   .?.   \$\$\$\$\$   .?.       7\$\$\$."
echo "   \$.\$.   .\$\$\$7. \$\$\$\$7 .7\$\$\$.      .\$\$\$."
echo " .777.   .\$\$\$\$\$\$77\$\$\$77\$\$\$\$\$7.      \$\$\$,"
echo " \$\$\$~      .7\$\$\$\$\$\$\$\$\$\$\$\$\$7.       .\$\$\$."
echo ".\$\$7          .7\$\$\$\$\$\$\$7:          ?\$\$\$."
echo "\$\$\$          ?7\$\$\$\$\$\$\$\$\$\$I        .\$\$\$7 "
echo "\$\$\$       .7\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$      :\$\$\$. "
echo "\$\$\$       \$\$\$\$\$\$7\$\$\$\$\$\$\$\$\$\$\$\$    .\$\$\$.  "
echo "\$\$\$        \$\$\$   7\$\$\$7  .\$\$\$    .\$\$\$.   "
echo "\$\$\$\$             \$\$\$\$7         .\$\$\$.    "
echo "7\$\$\$7            7\$\$\$\$        7\$\$\$      "
echo " \$\$\$\$\$                        \$\$\$       "
echo "  \$\$\$\$7.                       \$\$  (TM)     "
echo "   \$\$\$\$\$\$\$.           .7\$\$\$\$\$\$  \$\$      "
echo "     \$\$\$\$\$\$\$\$\$\$\$\$7\$\$\$\$\$\$\$\$\$.\$\$\$\$\$\$      "
echo "       \$\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$.                "
echo
fi

if test "x${AST_IODBC_FOUND}" = "xyes"; then
	echo "WARNING: iodbc libs/headers found!"
	echo
	echo "  If you plan to use ODBC functionality, you should consider"
	echo "  switching to unixodbc instead."
	echo "  See: https://issues.asterisk.org/jira/browse/ASTERISK-22459"
	echo
fi

AC_MSG_NOTICE(Package configured for: )
AC_MSG_NOTICE( OS type  : $host_os)
AC_MSG_NOTICE( Host CPU : $host_cpu)
AC_MSG_NOTICE( build-cpu:vendor:os: $build_cpu : $build_vendor : $build_os :)
AC_MSG_NOTICE( host-cpu:vendor:os: $host_cpu : $host_vendor : $host_os :)
if test "${cross_compiling}" = "yes"; then
   AC_MSG_NOTICE( Cross Compilation = YES)
fi