dnl $Id$
AC_INIT
AM_INIT_AUTOMAKE(gpsd, 2.38dev)
dnl AC_PREFIX_PROGRAM(gcc)
AM_CONFIG_HEADER(gpsd_config.h)
AC_LANG([C])

AC_ARG_ENABLE(python,
  AC_HELP_STRING([--disable-python],
                 [disable python scripts and library bindings]),
  [try_python="$enableval"], [try_python="yes"])
ac_python="no"
if test x"$try_python" = xyes ; then
AM_PATH_PYTHON
ac_python="yes"
fi
AM_CONDITIONAL([HAVE_PYTHON], [test x"$ac_python" = xyes])

AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_LIBTOOL
AC_PROG_CXX
AC_C_BIGENDIAN
type_error="no"
AC_CHECK_SIZEOF([char])
AC_CHECK_SIZEOF([short])
AC_CHECK_SIZEOF([int])
AC_CHECK_SIZEOF([long])
AC_CHECK_SIZEOF([long long])
AC_CHECK_SIZEOF([float])
AC_CHECK_SIZEOF([double])
if test x"$ac_cv_sizeof_char" != "x1" ; then 
	AC_MSG_WARN(gpsd requires sizeof(char)==1);
	type_error="yes"
fi
if test x"$ac_cv_sizeof_short" != "x2" ; then 
	AC_MSG_WARN(gpsd requires sizeof(short)==2);
	type_error="yes"
fi
if test x"$ac_cv_sizeof_int" != "x4" ; then 
	AC_MSG_WARN(gpsd requires sizeof(int)==4);
	type_error="yes"
fi
if test x"$ac_cv_sizeof_long_long" != "x8" ; then 
	AC_MSG_WARN(gpsd requires sizeof(long long)==8);
	type_error="yes"
fi
if test x"$ac_cv_sizeof_float" != "x4" ; then 
	AC_MSG_WARN(gpsd requires sizeof(float)==4);
	type_error="yes"
fi
if test x"$ac_cv_sizeof_double" != "x8" ; then 
	AC_MSG_WARN(gpsd requires sizeof(double)==8);
	type_error="yes"
fi
if test x"$type_error" = "xyes" ; then
	AC_ERROR(Your system does not provide all required data types);
fi

AC_FUNC_ALLOCA
AC_STDC_HEADERS
AC_C_CONST

AC_MSG_CHECKING([for properly working floating point implementation])
if test "x$build" = "x$host"; then
	if eval "$CC $CFLAGS -o floattest ${srcdir}/floattest.c"; then
		if ./floattest > /dev/null; then
			AC_MSG_RESULT([yes])
		else
			AC_MSG_RESULT([no])
			AC_MSG_WARN([We strongly recommend you manually examine the floattest results])
		fi
	else
		AC_MSG_RESULT([failure compiling floattest])
	fi
else
	AC_MSG_RESULT([skipped test (cross-compiling)])
	AC_MSG_WARN([We are cross-compiling, and thus cannot run the floating point test now.
We strongly recommend running floattest on the target platform.])
fi


if eval "test x$GCC = xyes"; then
	CFLAGS="$CFLAGS -Wall -Wcast-align -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wpointer-arith -Wreturn-type -D_GNU_SOURCE"
	dnl -Wcast-qual -W
fi

AC_CHECK_HEADERS(sys/termios.h sys/select.h sys/time.h sys/modem.h sys/ipc.h sys/shm.h sys/socket.h)
AC_CHECK_HEADERS(arpa/inet.h netinet/in_systm.h netinet/in.h netinet/tcp.h)
AC_CHECK_HEADERS([netinet/ip.h], [], [],
[[#if HAVE_NETINET_IN_SYSTM_H && HAVE_NETINET_IN_H
#include netinet/ip.h
#endif
]])
AC_CHECK_HEADERS(termios.h strings.h ncurses.h getopt.h netdb.h)

AC_CHECK_FUNCS(round, roundf)
AC_CHECK_FUNCS(strlcpy)
AC_CHECK_FUNCS(strlcat)
AC_CHECK_FUNCS(strtonum)
AC_CHECK_FUNCS(setlocale)

AC_HEADER_TIME
AC_STRUCT_TIMEZONE

AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
        AC_TRY_COMPILE([
#include <time.h>
        ], [
                timezone = 1;
        ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
if test $ac_cv_var_timezone = yes; then
        AC_DEFINE(HAVE_TIMEZONE, [], [Have timezone variable])
else
        AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
                AC_TRY_COMPILE([
#include <time.h>
                        ], [
                        struct tm tm;
                        tm.tm_gmtoff = 1;
                        ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no
))
        if test $ac_cv_struct_tm_gmtoff = yes; then
                AC_DEFINE(HAVE_TM_GMTOFF, [], [struct tm has tm_gmtoff])
        else
                AC_ERROR(unable to find a way to determine timezone)
        fi
fi            
AC_CACHE_CHECK(for daylight external, mb_cv_var_daylight,
[  AC_TRY_LINK([#include <time.h>], [return (int)daylight;],
      mb_cv_var_daylight=yes,
      mb_cv_var_daylight=no)
])
if test $mb_cv_var_daylight = yes; then
   AC_DEFINE([HAVE_DAYLIGHT], 1,
           [Define if you have the external 'daylight' variable.])
fi

AC_CHECK_LIB(nsl, gethostbyname, LIBNSL="-lnsl")
AC_SUBST(LIBNSL)
AC_CHECK_LIB(socket, socket, LIBSOCKET="-lsocket")
AC_SUBST(LIBSOCKET)
AC_CHECK_LIB(m, rint, LIBM="-lm")
AC_SUBST(LIBM)
AC_CHECK_LIB(c, open, LIBC="-lc")
AC_SUBST(LIBC)
AC_CHECK_LIB(pthread, pthread_setcancelstate, 
	[LIBPTHREAD="-lpthread"
	AC_DEFINE([HAVE_LIBPTHREAD], [], [pthread libraries are present])])
AC_SUBST(LIBPTHREAD)

AH_VERBATIM([_GNU_SOURCE],
          [/* Macro for declaring function arguments unused. */
#if defined(__GNUC__)
#  define UNUSED __attribute__((unused)) /* Flag variable as unused */
#else /* not __GNUC__ */
#  define UNUSED
#endif

/* Some libc's don't have strlcat/strlcpy. Local copies are provided */
#ifndef HAVE_STRLCAT
size_t strlcat(/*@out@*/char *dst, /*@in@*/const char *src, size_t size);
#endif
#ifndef HAVE_STRLCPY
size_t strlcpy(/*@out@*/char *dst, /*@in@*/const char *src, size_t size);
#endif])

dnl Check for X libraries
ac_x="no"
if test x"$with_x" != "xno" -a x"$have_x" != "xdisabled"
  then
  AC_CHECK_HEADERS(X11/xpm.h xpm.h)
  if test x"$ac_cv_header_X11_xpm_h" = "xno" &&
     test x"$ac_cv_header_xpm_h" = "xno"; then
    AC_MSG_WARN([xpm.h problem - xgps won't be built.])
  fi
  AC_PATH_XTRA
  if test x"$ac_cv_have_x" = "xno"; then
    AC_MSG_WARN([X problem - xgps won't be built.])
  fi
  LIBS="$LIBS $X_EXTRA_LIBS"
  CFLAGS="$CFLAGS $X_CFLAGS"
  CPPFLAGS="$CPPFLAGS $X_CFLAGS"
  LDFLAGS="$LDFLAGS $X_LIBS"
  AC_SUBST(X_LIBS)
  AC_SUBST(X11_LIBS)
  AC_SUBST(X_PRE_LIBS)

  dnl Check for some auxiliary X libraries we'll need
  AC_CHECK_LIB(Xt, XtToolkitInitialize, XT_LIBS="-lXt",,
	  ${X_PRE_LIBS} ${X11_LIBS})
  AC_SUBST(XT_LIBS)
  if test x"$ac_cv_lib_Xt_XtToolkitInitialize" = "xno"; then
    AC_MSG_WARN([libXt problem - xgps won't be built.])
  fi
  AC_CHECK_HEADER([X11/Xaw/Label.h],, motif_includes="no")
  AC_CHECK_LIB(Xaw, XawInitializeWidgetSet, XAW_LIBS="-lXaw",,
	  ${X_PRE_LIBS} ${X11_LIBS})
  AC_SUBST(XAW_LIBS)
  if test x"$ac_cv_lib_Xaw_XawInitializeWidgetSet" = "xno"; then
    AC_MSG_WARN([libXaw problem - xgps won't be built.])
  fi
  AC_CHECK_LIB(Xext, XShapeQueryVersion, XEXT_LIBS="-lXext",,
	  ${X_PRE_LIBS} ${X11_LIBS})
  AC_SUBST(XEXT_LIBS)
  if test x"$ac_cv_lib_Xext_XShapeQueryVersion" = "xno"; then
    AC_MSG_WARN([libXext problem - xgps won't be built.])
  fi
  AC_CHECK_LIB(Xpm, XpmCreatePixmapFromXpmImage,
	  XPM_LIBS="-lXpm"
	  AC_DEFINE([HAVE_XPM],1,[Xpm available]),,${X_PRE_LIBS} ${X11_LIBS})
  AC_SUBST(XPM_LIBS)
  if test x"$ac_cv_lib_Xpm_XpmCreatePixmapFromXpmImage" = "xno"; then
    AC_MSG_WARN([libXpm problem - xgps won't be built.])
  fi

  dnl Check for Motif widget libraries
  XM_LIBS=""
  XP_LIBS=""
  if test "$motif_includes" != "no" -a "$motif_libraries" != "no"
  then
  dnl Motif 2.1 wants '-lXp' (X11R6.3 print server)
  AC_CHECK_LIB(Xp, XpSelectInput,
	  XP_LIBS="-lXp"
	  AC_DEFINE([HAVE_XP],1,[Xp available]),,
	  ${X_PRE_LIBS} ${XPM_LIBS} ${XEXT_LIBS} ${XT_LIBS} ${XEXT_LIBS} ${X11_LIBS} ${LIBGEN})
  dnl
  AC_CHECK_LIB(Xm, XmInternAtom, 
	  XM_LIBS="-lXm"
	  AC_DEFINE([HAVE_MOTIF],1,[Motif available]),,
	  ${X_PRE_LIBS} ${XP_LIBS} ${XPM_LIBS} ${XEXT_LIBS} ${XT_LIBS} ${XEXT_LIBS} ${X11_LIBS} ${LIBGEN})
  fi
  AC_SUBST(XP_LIBS)
  AC_SUBST(XM_LIBS)
  AM_CONDITIONAL([HAVE_MOTIF], [test "$XM_LIBS" != "" -a "$motif_includes" != "no"])
  ac_x="yes"
else
  dnl X11 disabled
  AM_CONDITIONAL([HAVE_MOTIF], [test "motif" = "no"])
  AC_MSG_WARN([Not including X11 support])
fi
dnl End of X11 checks

AC_CHECK_HEADER(ncurses.h, ac_ncurses='yes', ac_ncurses='no')
AM_CONDITIONAL([HAVE_NCURSES], [test x"$ac_ncurses" = "xyes"])
AC_CHECK_LIB(ncurses, initscr, ac_ncurses_lib='yes', ac_ncurses_lib='no')
if test x"$ac_ncurses_lib" = "xyes" -a x"$ac_ncurses" = "xno" ; then
    AC_MSG_ERROR(I see an ncurses library but no header; you should install the development package);
fi

dnl check for NMEA support
AC_ARG_ENABLE(nmea,
  AC_HELP_STRING([--disable-nmea],
                 [disable NMEA support]),
  [ac_nmea=$enableval], [ac_nmea=yes])
AC_MSG_CHECKING([for NMEA support])
if test x"$ac_nmea" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([NMEA_ENABLE], 1, [NMEA chipset support])
else
  AC_MSG_RESULT([no])
fi

dnl check for SiRF support
AC_ARG_ENABLE(sirf,
  AC_HELP_STRING([--disable-sirf],
                 [disable SiRF chipset support]),
  [ac_sirf=$enableval], [ac_sirf=yes])
AC_MSG_CHECKING([for SiRF support])
if test x"$ac_sirf" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([SIRF_ENABLE], 1, [SiRF chipset support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Trimble TSIP support
AC_ARG_ENABLE(tsip,
  AC_HELP_STRING([--disable-tsip],
                 [disable Trimble TSIP support]),
  [ac_tsip=$enableval], [ac_tsip=yes])
AC_MSG_CHECKING([for Trimble TSIP support])
if test x"$ac_tsip" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([TSIP_ENABLE], 1, [Trimble TSIP support])
else
  AC_MSG_RESULT([no])
fi

dnl check for FV-18 support
AC_ARG_ENABLE(fv18,
  AC_HELP_STRING([--disable-fv18],
                 [disable San Jose Navigation FV-18 support]),
  [ac_fv18=$enableval], [ac_fv18=yes])
AC_MSG_CHECKING([for FV-18 support])
if test x"$ac_fv18" = "xyes"; then
    ac_nmea=yes
    AC_MSG_RESULT([yes])
	AC_DEFINE([FV18_ENABLE], 1, [San Jose Navigation FV-18 support])
	AC_DEFINE([NMEA_ENABLE], 1, [San Jose Navigation FV-18 requires NMEA support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Tripmate support
AC_ARG_ENABLE(tripmate,
  AC_HELP_STRING([--disable-tripmate],
                 [disable DeLorme TripMate support]),
  [ac_tripmate=$enableval], [ac_tripmate=yes])
AC_MSG_CHECKING([for Tripmate support])
if test x"$ac_tripmate" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([TRIPMATE_ENABLE], 1, [DeLorme TripMate support])
else
  AC_MSG_RESULT([no])
fi

dnl check for EarthMate support
AC_ARG_ENABLE(earthmate,
  AC_HELP_STRING([--disable-earthmate],
                 [disable DeLorme EarthMate Zodiac support]),
  [ac_earthmate=$enableval], [ac_earthmate=yes])
AC_MSG_CHECKING([for EarthMate support])
if test x"$ac_earthmate" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([EARTHMATE_ENABLE], 1, [DeLorme EarthMate Zodiac support])
else
  AC_MSG_RESULT([no])
fi

dnl check for iTrax support
AC_ARG_ENABLE(itrax,
  AC_HELP_STRING([--disable-itrax],
                 [disable iTrax hardware support]),
  [ac_itrax=$enableval], [ac_itrax=yes])
AC_MSG_CHECKING([for iTrax support])
if test x"$ac_itrax" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([ITRAX_ENABLE], 1, [iTrax chipset support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Ashtech support
AC_ARG_ENABLE(ashtech,
  AC_HELP_STRING([--disable-ashtech],
                 [disable Ashtech support]),
  [ac_ashtech=$enableval], [ac_ashtech=yes])
AC_MSG_CHECKING([for Ashtech support])
if test x"$ac_ashtech" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([ASHTECH_ENABLE], 1, [Ashtech chipset support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Navcom support
AC_ARG_ENABLE(navcom,
  AC_HELP_STRING([--disable-navcom],
                 [disable Navcom support]),
  [ac_navcom=$enableval], [ac_navcom=yes])
AC_MSG_CHECKING([for Navcom support])
if test x"$ac_navcom" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([NAVCOM_ENABLE], 1, [Navcom support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Garmin support
AC_ARG_ENABLE(garmin,
  AC_HELP_STRING([--disable-garmin],
                 [disable Garmin kernel driver support]),
  [ac_garmin=$enableval], [ac_garmin=yes])
AC_MSG_CHECKING([for Garmin support])
if test x"$ac_garmin" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([GARMIN_ENABLE], 1, [Garmin support])
else
  AC_MSG_RESULT([no])
fi

dnl check for Garmin Simple Text support
AC_ARG_ENABLE(garmintxt,
  AC_HELP_STRING([--enable-garmintxt],
                 [enable Garmin Simple Text support]),
  [ac_garmintxt=$enableval], [ac_garmintxt=no])
AC_MSG_CHECKING([for Garmin Simple Text support])
if test x"$ac_garmintxt" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([GARMINTXT_ENABLE], 1, [Garmin Simple Text support])
else
  AC_MSG_RESULT([no])
fi

dnl check for True North support
AC_ARG_ENABLE(tnt,
  AC_HELP_STRING([--enable-tnt],
                 [enable True North Technologies support]),
  [ac_tnt=$enableval], [ac_tnt=no])
AC_MSG_CHECKING([for True North support])
if test x"$ac_tnt" = "xyes"; then
    ac_nmea=yes
    AC_MSG_RESULT([yes])
	AC_DEFINE([TNT_ENABLE], 1, [True North Technologies support])
	AC_DEFINE([NMEA_ENABLE], 1, [True North requires NMEA support])
else
  AC_MSG_RESULT([no])
fi

dnl check for UBX support
AC_ARG_ENABLE(ubx,
  AC_HELP_STRING([--disable-ubx],
                 [disable UBX Protocol support]),
  [ac_ubx=$enableval], [ac_ubx=yes])
AC_MSG_CHECKING([for UBX support])
if test x"$ac_ubx" = "xyes"; then
  AC_MSG_RESULT([yes])
  AC_DEFINE([UBX_ENABLE], 1, [UBX Protocol support])
else
  AC_MSG_RESULT([no])
fi

dnl check for EverMore support
AC_ARG_ENABLE(evermore,
  AC_HELP_STRING([--disable-evermore],
                 [disable EverMore binary support]),
  [ac_evermore=$enableval], [ac_evermore=yes])
AC_MSG_CHECKING([for EverMore support])
if test x"$ac_evermore" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([EVERMORE_ENABLE], 1, [EverMore binary support])
else
  AC_MSG_RESULT([no])
fi

dnl check for GPSClock support
AC_ARG_ENABLE(gpsclock,
  AC_HELP_STRING([--disable-gpsclock],
                 [disable GPSClock support]),
  [ac_gpsclock=$enableval], [ac_gpsclock=yes])
AC_MSG_CHECKING([for GPSClock support])
if test x"$ac_gpsclock" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([GPSCLOCK_ENABLE], 1, [GPSclock chipset support])
else
  AC_MSG_RESULT([no])
fi

dnl check for RTCM104V2 support
AC_ARG_ENABLE(rtcm104v2,
  AC_HELP_STRING([--disable-rtcm104v2],
                 [disable rtcm104v2 support]),
  [ac_rtcm104v2=$enableval], [ac_rtcm104v2=yes])
AC_MSG_CHECKING([for rtcm104v2 support])
if test x"$ac_earthmate" = "xno" -a x"$ac_evermore" = "xno" -a x"$ac_garmin" = "xno" -a x"$ac_itrax" = "xno" -a x"$ac_sirf" = "xno" -a x"$ac_tsip" = "xno" -a x"$ac_navcom" = "xno"; then
    ac_rtcm104v2=no
fi
if test x"$ac_rtcm104v2" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([RTCM104V2_ENABLE], 1, [rtcm104v2 binary support])
else
  AC_MSG_RESULT([no])
fi

AM_CONDITIONAL([HAVE_RTCM104V2], [test "$ac_rtcm104v2" = "yes"])

dnl check for RTCM104V3 support
AC_ARG_ENABLE(rtcm104v2,
  AC_HELP_STRING([--disable-rtcm104v3],
                 [disable rtcm104v3 support]),
  [ac_rtcm104v3=$enableval], [ac_rtcm104v3=yes])
AC_MSG_CHECKING([for rtcm104v3 support])
if test x"$ac_earthmate" = "xno" -a x"$ac_evermore" = "xno" -a x"$ac_garmin" = "xno" -a x"$ac_itrax" = "xno" -a x"$ac_sirf" = "xno" -a x"$ac_tsip" = "xno" -a x"$ac_navcom" = "xno"; then
    ac_rtcm104v3=no
fi
if test x"$ac_rtcm104v3" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([RTCM104V3_ENABLE], 1, [rtcm104v3 binary support])
else
  AC_MSG_RESULT([no])
fi

AM_CONDITIONAL([HAVE_RTCM104V3], [test "$ac_rtcm104v3" = "yes"])

dnl check for NTRIP support
AC_ARG_ENABLE(ntrip,
  AC_HELP_STRING([--disable-ntrip],
                 [disable NTRIP support]),
  [ac_ntrip=$enableval], [ac_ntrip=yes])
AC_MSG_CHECKING([for NTRIP support])
if test x"$ac_ntrip" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([NTRIP_ENABLE], 1, [NTRIP support])
else
  AC_MSG_RESULT([no])
fi

AM_CONDITIONAL([HAVE_NTRIP], [test "$ac_ntrip" = "yes"])

dnl check for profiling support
AC_ARG_ENABLE(profiling,
  AC_HELP_STRING([--enable-profiling],
                 [enable profiling support]),
  [ac_profiling=$enableval], [ac_profiling=no])
AC_MSG_CHECKING([for profiling support])
if test x"$ac_profiling" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([PROFILING], 1, [profiling support])
else
  AC_MSG_RESULT([no])
fi

dnl check for NTP time hinting support
AC_ARG_ENABLE(ntpshm,
  AC_HELP_STRING([--disable-ntpshm],
                 [disable NTP time hinting support]),
  [ac_ntpshm=$enableval], [ac_ntpshm=yes])
AC_MSG_CHECKING([for NTP time hinting support])
if test x"$ac_ntpshm" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([NTPSHM_ENABLE], 1, [NTP time hinting support])
else
  AC_MSG_RESULT([no])
fi

dnl check for PPS time syncing support
AC_ARG_ENABLE(pps,
  AC_HELP_STRING([--disable-pps],
                 [disable PPS time syncing support]),
  [ac_pps=$enableval], [ac_pps=yes])
AC_MSG_CHECKING([for PPS time syncing support])
if test x"$ac_pps" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([PPS_ENABLE], 1, [PPS time syncing support])
else
  AC_MSG_RESULT([no])
fi

dnl check for PPS input on CTS line
AC_ARG_ENABLE(pps-on-cts,
  AC_HELP_STRING([--enable-pps-on-cts],
                 [Enable PPS pulse on CTS rather than DCD]),
  [ac_ppsoncts=$enableval], [ac_ppsoncts=no])
AC_MSG_CHECKING([for PPS pulse on CTS rather than DCD])
if test x"$ac_ppsoncts" = "xyes"; then
    AC_MSG_RESULT([yes])
       AC_DEFINE([PPS_ON_CTS], 1, [PPS on CTS rather than DCD])
else
  AC_MSG_RESULT([no])
fi

dnl check for privilege revokation user at compile-time
AC_ARG_ENABLE(gpsd-user,
  AC_HELP_STRING([--enable-gpsd-user=username],
                 [GPSD privilege revokation user]),
  [ac_user=$enableval], [ac_user=nobody])
AC_MSG_CHECKING([privilege revokation user])
if test x"$ac_user" != "xnobody"; then
    AC_MSG_RESULT([$ac_user])
	AC_DEFINE_UNQUOTED([GPSD_USER], "$ac_user", [GPSD privilege revokation user])
else
  AC_MSG_RESULT([nobody])
fi

dnl check for port speed fixed at compile-time
AC_ARG_ENABLE(fixed-port-speed,
  AC_HELP_STRING([--enable-fixed-port-speed=nnn],
                 [compile with fixed serial port speed]),
  [ac_baud=$enableval], [ac_baud=no])
AC_MSG_CHECKING([for fixed port speed])
if test x"$ac_baud" != "xno"; then
    AC_MSG_RESULT([$ac_baud])
	AC_DEFINE_UNQUOTED([FIXED_PORT_SPEED], $ac_baud, [Fixed port speed])
	FIXED_PORT_SPEED="-DSPEEDFLAGS=$ac_baud"
else
  AC_MSG_RESULT([no])
fi

dnl Manually configure DBUS until we figure out a 
dnl distro-independent was to check for both libraries and headers
AC_ARG_ENABLE(dbus,
    AC_HELP_STRING([--enable-dbus],
                [enable DBUS support]),
    [ac_dbus=$enableval], [ac_dbus=no])
AC_MSG_CHECKING([for DBUS support])
if test x"$ac_dbus" = "xyes"; then
    AC_MSG_RESULT([yes])
    AC_DEFINE([DBUS_ENABLE], 1, [DBUS support])
    # Older versions of autotools barf and die on this.
    #PKG_CHECK_MODULES(DBUS, dbus-1 >= 0.23.4 )
    DBUS_CFLAGS=`pkg-config --cflags dbus-glib-1`
    DBUS_LIBS=`pkg-config --libs dbus-1`
    AC_SUBST(DBUS_CFLAGS)
    AC_SUBST(DBUS_LIBS)
    #PKG_CHECK_MODULES(DBUS_GLIB, dbus-glib-1 >= 0.22 )
    DBUS_GLIB_LIBS=`pkg-config --libs dbus-glib-1`
    AC_SUBST(DBUS_GLIB_CFLAGS)
    AC_SUBST(DBUS_GLIB_LIBS)
else
    AC_MSG_RESULT([no])
fi

dnl check for limited maximum clients
AC_ARG_ENABLE(max-clients,
  AC_HELP_STRING([--enable-max-clients=nnn],
                 [compile with limited maximum clients]),
  [ac_maxclients=$enableval], [ac_maxclients=no])
AC_MSG_CHECKING([for limited max clients])
if test x"$ac_maxclients" != "xno"; then
    AC_MSG_RESULT([$ac_maxclients])
	AC_DEFINE_UNQUOTED([LIMITED_MAX_CLIENTS], $ac_maxclients, [Limited maximum clients])
	LIMITED_MAX_CLIENTS="-DLIMITED_MAX_CLIENTS=$ac_maxclients"
else
  AC_MSG_RESULT([no])
fi

dnl check for max number of GPS devices
AC_ARG_ENABLE(max-devices,
  AC_HELP_STRING([--enable-max-devices=nnn],
                 [compile with maximum allowed devices]),
  [ac_maxdevices=$enableval], [ac_maxdevices=no])
AC_MSG_CHECKING([for max devices])
if test x"$ac_maxdevices" != "xno"; then
    AC_MSG_RESULT([$ac_maxdevices])
	AC_DEFINE_UNQUOTED([LIMITED_MAX_DEVICES], $ac_maxdevices, [Maximum gps devices])
	LIMITED_MAX_DEVICES="-DLIMITED_MAX_DEVICES=$ac_maxdevices"
else
  AC_MSG_RESULT([no])
fi

dnl allow gpsd to reconfigure gps receiver
AC_ARG_ENABLE(reconfigure,
  AC_HELP_STRING([--disable-reconfigure],
                 [do not allow gpsd to change device settings]),
  [ac_reconfigure=$enableval], [ac_reconfigure=yes])
AC_MSG_CHECKING([if device reconfiguration is allowed])
if test x"$ac_reconfigure" != "xno"; then
    AC_MSG_RESULT([$ac_reconfigure])
	AC_DEFINE([ALLOW_RECONFIGURE], 1, [Allow gpsd to reconfigure device])
else
  AC_MSG_RESULT([no])
fi

dnl Automatic check for DBUS.
dnl It's broken -- leads to bad compiles on systems with DBUS libraies
dnl but no DBUS headers.
dnl ac_dbus=no
dnl AC_CHECK_LIB(dbus-1, dbus_bus_get, [true], [false]) # do not update $LIBS 
dnl if test x"yes" = x"$ac_cv_lib_dbus_1_dbus_bus_get" ; then
dnl    # Found dbus library, check for required versions and enable it
dnl 
dnl    AC_MSG_CHECKING([for DBUS support])
dnl    PKG_CHECK_MODULES(DBUS, dbus-1 >= 0.23.4,
dnl       [ac_dbus=yes],[ac_dbus=no])
dnl    AC_MSG_RESULT([$ac_dbus])
dnl    AC_SUBST(DBUS_CFLAGS)
dnl    AC_SUBST(DBUS_LIBS)
dnl 
dnl    if test x"ac_dbus" = x"yes" ; then
dnl       AC_DEFINE([DBUS_ENABLE],1,[Found DBUS libraries])
dnl    fi
dnl 
dnl    # Check for glib and dbus-glib, used by gpxlogger
dnl    PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.2.0 )
dnl    AC_SUBST(GLIB_CFLAGS)
dnl    AC_SUBST(GLIB_LIBS)
dnl 
dnl    PKG_CHECK_MODULES(DBUS_GLIB, dbus-glib-1 >= 0.22)
dnl    AC_SUBST(DBUS_GLIB_CFLAGS)
dnl    AC_SUBST(DBUS_GLIB_LIBS)
dnl fi
AM_CONDITIONAL([HAVE_DBUS], [test x"$ac_dbus" = x"yes"])

dnl mute logging functions?
AC_ARG_ENABLE(squelch,
  AC_HELP_STRING([--enable-squelch],
                 [squelch gpsd_report and gpsd_hexdump to save cpu]),
  [ac_squelch=$enableval], [ac_squelch=no])
AC_MSG_CHECKING([for disabled logging])
if test x"$ac_squelch" = "xyes"; then
    AC_MSG_RESULT([yes])
	AC_DEFINE([SQUELCH_ENABLE], 1, [Squelch logging and hexdumps])
else
  AC_MSG_RESULT([no])
fi

dnl Test for XSLT processor (xsltproc or xmlto)
AC_CHECK_PROG(WITH_XSLTPROC,[xsltproc],[yes],[no])
MANGENERATOR=
MANTARGET=
MANFLAGS=
if test "x$WITH_XSLTPROC" = "xyes"; then
    AC_MSG_CHECKING([whether xsltproc knows about docbook xsl])
    DOCBOOK_URI='http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
    cat >conftest.xml <<_EOF
       <refentry id="foo.1">
          <refmeta>
            <refentrytitle>foo</refentrytitle>
            <manvolnum>1</manvolnum>
            <refmiscinfo class='date'>9 Aug 2004</refmiscinfo>
          </refmeta>
          <refnamediv id='name'>
            <refname>foo</refname>
            <refpurpose>check man page generation from docbook source</refpurpose>
          </refnamediv>
        </refentry>
_EOF
    if xsltproc --nonet --noout "$DOCBOOK_URI" conftest.xml >/dev/null 2>&1; then
        MANGENERATOR=xsltproc
        MANTARGET="$DOCBOOK_URI"
        MANFLAGS="--nonet"
        AC_MSG_RESULT([yes])
    else
        AC_MSG_RESULT([no])
    fi
    rm -f conftest.xml foo.1
fi
if test x"$MANGENERATOR" = x; then
    AC_CHECK_PROG(WITH_XMLTO,[xmlto],[yes],[no])
    if test "x$WITH_XMLTO" = "xyes"; then
        MANGENERATOR=xmlto
        MANTARGET=man
        MANFLAGS=
    else
        AC_MSG_WARN([Neither xsltproc nor xmlto works: I will not build man pages.])
        AC_MSG_WARN([To build man pages, install xsltproc/xsltlib or xmlto and run autogen.sh again.])
    fi
fi
AM_CONDITIONAL([HAVE_XSLT_PROCESSOR],
               [test x"$MANGENERATOR" != x])
AC_SUBST(MANGENERATOR)
AC_SUBST(MANTARGET)
AC_SUBST(MANFLAGS)


dnl Output the configuration summary
echo ""
echo "=========================================="
echo "$PACKAGE $VERSION"
echo "------------------------------------------"
dnl When you add a protocol here, don't forget the null-set check below
echo "	Protocols"
echo "	---------"
echo "Ashtech                 : $ac_ashtech"
echo "Earthmate               : $ac_earthmate"
echo "EverMore                : $ac_evermore"
echo "FV-18                   : $ac_fv18"
echo "Garmin                  : $ac_garmin"
echo "Garmin Simple Text      : $ac_garmintxt"
echo "iTrax                   : $ac_itrax"
echo "NMEA                    : $ac_nmea"
echo "NTRIP                   : $ac_ntrip"
echo "Navcom                  : $ac_navcom"
echo "RTCM104V2               : $ac_rtcm104v2"
echo "RTCM104V3               : $ac_rtcm104v3"
echo "SiRF                    : $ac_sirf"
echo "Trimble TSIP            : $ac_tsip"
echo "Tripmate                : $ac_tripmate"
echo "True North              : $ac_tnt"
echo "UBX                     : $ac_ubx"
echo "GPSclock                : $ac_gpsclock"
dnl Below this line are non-protocol switches
echo "	Daemon Features"
echo "	---------------"
echo "NTP SHM                 : $ac_ntpshm"
echo "NTP PPS                 : $ac_pps"
echo -n "PPS input on            : " ; case $ac_ppsoncts in yes) echo "CTS" ;; no) echo "DCD" ;; *) echo "Not defined" ;; esac  
echo "Fixed port speed        : $ac_baud"
echo "Priv-drop user          : $ac_user"
echo "Enable shared libraries : $enable_shared"
echo "Enable DBUS support     : $ac_dbus"
echo "Enable X11 support      : $ac_x"
echo "Enable Python support   : $ac_python"
echo "Limited max clients     : $ac_maxclients"
echo "Limited max devices     : $ac_maxdevices"
echo "Allow device reconfig   : $ac_reconfigure"
echo "Squelch logging/hexdump : $ac_squelch"
echo "Build ncurses programs  : $ac_ncurses" 
echo "------------------------------------------"

if test "xdummy" = "xdummy" -a \
    x"$ac_earthmate" = "xno" -a \
    x"$ac_evermore" = "xno" -a \
    x"$ac_fv18" = "xno" -a \
    x"$ac_garmin" = "xno" -a \
    x"$ac_garmintxt" = "xno" -a \
    x"$ac_itrax" = "xno" -a \
    x"$ac_navcom" = "xno" -a \
    x"$ac_nmea" = "xno" -a \
    x"$ac_ntrip" = "xno" -a \
    x"$ac_rtcm104v2" = "xno" -a \
    x"$ac_sirf" = "xno" -a \
    x"$ac_tnt" = "xno" -a \
    x"$ac_tripmate" = "xno" -a \
    x"$ac_tsip" = "xno" -a \
    x"$ac_ubx" = "xno"; then
    AC_MSG_ERROR(Can't build gpsd with no protocols enabled)
fi
AC_OUTPUT(Makefile gpsd.spec libgps.pc libgpsd.pc)
echo "Configure finished, type 'make' to build."