configure.ac

   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

AST_PKG_CONFIG_CHECK([PJPROJECT], [libpjproject])

AST_EXT_LIB_CHECK([PJ_TRANSACTION_GRP_LOCK], [pjsip], [pjsip_tsx_create_uac2], [pjsip.h])

AST_C_COMPILE_CHECK([PJSIP_REPLACE_MEDIA_STREAM], [pjmedia_mod_offer_flag flag = PJMEDIA_SDP_NEG_ALLOW_MEDIA_CHANGE], [pjmedia.h])

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

AST_EXT_LIB_CHECK([PORTAUDIO], [portaudio], [Pa_GetDeviceCount], [portaudio.h])

AST_EXT_LIB_CHECK([PRI], [pri], [pri_connected_line_update], [libpri.h])
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])
# ------------------------------------^

AST_EXT_LIB_CHECK([RESAMPLE], [resample], [resample_open], [libresample.h], [-lm])

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])

if test "${USE_PWLIB}" != "no"; then
	if test -n "${PWLIB_DIR}"; then
		PWLIBDIR="${PWLIB_DIR}"
	fi
	AST_CHECK_PWLIB()
	AST_CHECK_PWLIB_VERSION([PWLib], [PWLIB], [ptbuildopts.h], [1], [9], [2], [P[[WT]]LIB_VERSION])

	if test "${HAS_PWLIB:-unset}" != "unset"; then
		AST_CHECK_PWLIB_PLATFORM()

		PLATFORM_PWLIB="pt_${PWLIB_PLATFORM}_r"

		AST_CHECK_PWLIB_BUILD([PWLib], [PWLIB],
			[Define if your system has the PWLib libraries.],
			[#include "ptlib.h"],
			[int q = (int) PTime::IsDaylightSavings();])
	fi
fi

if test "${PBX_PWLIB}" = "1" -a "${USE_OPENH323}" != "no" ; then
	if test -n "${OPENH323_DIR}"; then
		OPENH323DIR="${OPENH323_DIR}"
	fi
	AST_CHECK_OPENH323()
	AST_CHECK_PWLIB_VERSION([OpenH323], [OPENH323], [openh323buildopts.h], [1], [17], [3], [], [1], [19], [0])
	AST_CHECK_OPENH323_BUILD()
	PLATFORM_OPENH323="h323_${PWLIB_PLATFORM}_${OPENH323_SUFFIX}"
	AST_CHECK_PWLIB_BUILD([OpenH323], [OPENH323],
		[Define if your system has the OpenH323 libraries.],
		[#include "ptlib.h"
		#include "h323.h"
		#include "h323ep.h"],
		[H323EndPoint ep = H323EndPoint();],
		[${PWLIB_INCLUDE}], [${PWLIB_LIB}])
fi

AST_EXT_LIB_CHECK([LUA], [lua5.2], [luaL_newstate], [lua5.2/lua.h], [-lm])
if test "x${PBX_LUA}" = "x1" ; then
	if test x"${LUA_DIR}" = x; then
		LUA_INCLUDE="${LUA_INCLUDE} -I/usr/include/lua5.2"
	else
		LUA_INCLUDE="${LUA_INCLUDE} -I${LUA_DIR}/lua5.2"
	fi
fi

AST_EXT_LIB_CHECK([LUA], [lua5.1], [luaL_newstate], [lua5.1/lua.h], [-lm])
if test "x${PBX_LUA}" = "x1" ; then
	if test x"${LUA_DIR}" = x; then
		LUA_INCLUDE="${LUA_INCLUDE} -I/usr/include/lua5.1"
	else
		LUA_INCLUDE="${LUA_INCLUDE} -I${LUA_DIR}/lua5.1"
	fi
fi

# Some distributions (like SuSE) remove the 5.1 suffix.
AST_EXT_LIB_CHECK([LUA], [lua], [luaL_openlib], [lua.h], [-lm])

# 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(FREERADIUS_CLIENT, [], [Use the FreeRADIUS-client library])
else
	AST_EXT_LIB_CHECK([RADIUS], [radiusclient-ng], [rc_read_config], [radiusclient-ng.h])
fi

AST_EXT_LIB_CHECK([COROSYNC], [cpg], [cpg_join], [corosync/cpg.h], [-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_WARN(*** Asterisk now uses SQLite3 for the internal Asterisk database.)
	AC_MSG_WARN(*** 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])
fi

if test "$PBX_OPENSSL" = "1";
then
        AST_CHECK_OSPTK([4], [0], [0])
        AST_EXT_LIB_CHECK([OPENSSL_SRTP], [ssl], [SSL_CTX_set_tlsext_use_srtp], [openssl/ssl.h], [-lcrypto])
fi

if test "$PBX_OPENSSL" = "1";
then
	AST_EXT_LIB_CHECK([OPENSSL_EC], [ssl], [EC_KEY_new_by_curve_name], [openssl/ec.h], [-lcrypto])
fi

AST_EXT_LIB_CHECK([SRTP], [srtp], [srtp_init], [srtp/srtp.h])

if test "$PBX_SRTP" = "1";
then
    saved_libs="${LIBS}"
    saved_ldflags="${LDFLAGS}"
    saved_cflags="${CFLAGS}"
    LIBS="${LIBS} ${SRTP_LIB}"
    LDFLAGS="${LDFLAGS} -shared -fPIC"
    CFLAGS="${CFLAGS} ${SRTP_INCLUDE}"
    AC_MSG_CHECKING(for the ability of -lsrtp to be linked in a shared object)
    AC_LINK_IFELSE(
    [
        AC_LANG_PROGRAM(
            [#include <srtp/srtp.h>],
            [srtp_init();]
        )
    ],
    [ AC_MSG_RESULT(yes) ],
    [
        AC_MSG_RESULT(no)
        AC_MSG_WARN(***)
        AC_MSG_WARN(*** libsrtp could not be linked as a shared object.)
        AC_MSG_WARN(*** Try compiling libsrtp manually. Configure libsrtp)
        AC_MSG_WARN(*** with ./configure CFLAGS=-fPIC --prefix=/usr)
        AC_MSG_WARN(*** replacing /usr with the prefix of your choice.)
        AC_MSG_WARN(*** After re-installing libsrtp, re-run the Asterisk)
        AC_MSG_WARN(*** configure script.)
        AC_MSG_WARN(***)
        AC_MSG_WARN(*** If you do not need SRTP support re-run configure)
        AC_MSG_WARN(*** with the --without-srtp option.)
        exit 1
    ]
    )
    LIBS="${saved_libs}"
    LDFLAGS="${saved_ldflags}"
    CFLAGS="${saved_cflags}"
fi

AST_EXT_LIB_CHECK([SRTP_SHUTDOWN], [srtp], [srtp_shutdown], [srtp/srtp.h])

for ver in 2.0 2.2 2.4 2.6; 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}])

if test "${OSARCH}" = "OpenBSD";
then
	AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc -lvorbisfile -logg])
else
	AST_EXT_LIB_CHECK([VORBIS], [vorbis], [vorbis_info_init], [vorbis/codec.h], [-lm -lvorbisenc -lvorbisfile])
fi
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 "${cross_compiling}" = "no";
then
  AC_CHECK_FILE(/sbin/launchd, AC_DEFINE([HAVE_SBIN_LAUNCHD], 1, [Define to 1 if your system has /sbin/launchd.]))
  if test "${HAVE_SBIN_LAUNCHD}" = 1; then
    PBX_LAUNCHD=1
  fi
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])

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

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 )
else if ${ac_cv_path_CMP} -s makeopts.acbak makeopts.acbak2; then : ; else
	( cd `pwd`/menuselect && ./configure )
fi ; 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