dnsproxy: Only one copy of the relevant buffers will be made to a TCP request
[framework/connectivity/connman.git] / configure.ac
index daffc47..72890d8 100644 (file)
@@ -1,7 +1,7 @@
 AC_PREREQ(2.60)
-AC_INIT(connman, 0.61)
+AC_INIT(connman, 1.1)
 
-AM_INIT_AUTOMAKE([foreign subdir-objects])
+AM_INIT_AUTOMAKE([foreign subdir-objects color-tests])
 AM_CONFIG_HEADER(config.h)
 
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
@@ -23,8 +23,6 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CC_PIE
 AC_PROG_INSTALL
-AC_PROG_SED
-AC_PROG_AWK
 AM_PROG_MKDIR_P
 
 m4_define([_LT_AC_TAGCONFIG], [])
@@ -32,7 +30,6 @@ m4_ifdef([AC_LIBTOOL_TAGS], [AC_LIBTOOL_TAGS([])])
 
 AC_DISABLE_STATIC
 AC_PROG_LIBTOOL
-AC_PROG_NM
 
 AC_ARG_ENABLE(optimization, AC_HELP_STRING([--disable-optimization],
                        [disable code optimization through compiler]), [
@@ -64,57 +61,12 @@ AC_ARG_ENABLE(threads,
        AC_HELP_STRING([--enable-threads], [enable threading support]),
                        [enable_threads=${enableval}], [enable_threads="no"])
 
-AC_ARG_ENABLE(ethernet,
-       AC_HELP_STRING([--enable-ethernet], [enable Ethernet support]),
-                       [enable_ethernet=${enableval}], [enable_ethernet="no"])
-AM_CONDITIONAL(ETHERNET, test "${enable_ethernet}" != "no")
-AM_CONDITIONAL(ETHERNET_BUILTIN, test "${enable_ethernet}" = "builtin")
-
-AC_ARG_ENABLE(wifi,
-       AC_HELP_STRING([--enable-wifi], [enable WiFi support]),
-                       [enable_wifi=${enableval}], [enable_wifi="no"])
-if (test "${enable_wifi}" != "no"); then
-       AC_PATH_PROG(WPASUPPLICANT, [wpa_supplicant], [],
-                                               $PATH:/sbin:/usr/sbin)
-fi
-AM_CONDITIONAL(WIFI, test "${enable_wifi}" != "no")
-AM_CONDITIONAL(WIFI_BUILTIN, test "${enable_wifi}" = "builtin")
-
-AC_ARG_ENABLE(bluetooth,
-       AC_HELP_STRING([--enable-bluetooth], [enable Bluetooth support]),
-                       [enable_bluetooth=${enableval}], [enable_bluetooth="no"])
-AM_CONDITIONAL(BLUETOOTH, test "${enable_bluetooth}" != "no")
-AM_CONDITIONAL(BLUETOOTH_BUILTIN, test "${enable_bluetooth}" = "builtin")
-
 AC_ARG_ENABLE(hh2serial-gps,
        AC_HELP_STRING([--enable-hh2serial-gps], [enable hh2serial GPS support]),
                        [enable_hh2serial_gps=${enableval}], [enable_hh2serial_gps="no"])
 AM_CONDITIONAL(HH2SERIAL_GPS, test "${enable_hh2serial_gps}" != "no")
 AM_CONDITIONAL(HH2SERIAL_GPS_BUILTIN, test "${enable_hh2serial_gps}" = "builtin")
 
-AC_ARG_ENABLE(ofono,
-       AC_HELP_STRING([--enable-ofono], [enable oFono support]),
-                       [enable_ofono=${enableval}], [enable_ofono="no"])
-AM_CONDITIONAL(OFONO, test "${enable_ofono}" != "no")
-AM_CONDITIONAL(OFONO_BUILTIN, test "${enable_ofono}" = "builtin")
-
-AC_ARG_WITH(dhclient, AC_HELP_STRING([--with-dhclient=PROGRAM],
-       [specify location of dhclient binary]), [path_dhclient=${withval}])
-
-AC_ARG_ENABLE(dhclient,
-       AC_HELP_STRING([--enable-dhclient], [enable dhclient support]),
-                       [enable_dhclient=${enableval}], [enable_dhclient="no"])
-if (test "${enable_dhclient}" != "no"); then
-       if (test -z "${path_dhclient}"); then
-               AC_PATH_PROG(DHCLIENT, [dhclient], [], $PATH:/sbin:/usr/sbin)
-       else
-               DHCLIENT="${path_dhclient}"
-               AC_SUBST(DHCLIENT)
-       fi
-fi
-AM_CONDITIONAL(DHCLIENT, test "${enable_dhclient}" != "no")
-AM_CONDITIONAL(DHCLIENT_BUILTIN, test "${enable_dhclient}" = "builtin")
-
 AC_ARG_WITH(openconnect, AC_HELP_STRING([--with-openconnect=PROGRAM],
         [specify location of openconnect binary]), [path_openconnect=${withval}])
 
@@ -124,6 +76,9 @@ AC_ARG_ENABLE(openconnect,
 if (test "${enable_openconnect}" != "no"); then
        if (test -z "${path_openconnect}"); then
                AC_PATH_PROG(OPENCONNECT, [openconnect], [], $PATH:/sbin:/usr/sbin)
+               if (test -z "${OPENCONNECT}"); then
+                       AC_MSG_ERROR(openconnect binary not found)
+               fi
        else
                OPENCONNECT="${path_openconnect}"
                AC_SUBST(OPENCONNECT)
@@ -132,43 +87,89 @@ fi
 AM_CONDITIONAL(OPENCONNECT, test "${enable_openconnect}" != "no")
 AM_CONDITIONAL(OPENCONNECT_BUILTIN, test "${enable_openconnect}" = "builtin")
 
-AC_ARG_ENABLE(portal,
-       AC_HELP_STRING([--enable-portal], [enable portal detection support]),
-                       [enable_portal=${enableval}], [enable_portal="no"])
-AM_CONDITIONAL(PORTAL, test "${enable_portal}" != "no")
-AM_CONDITIONAL(PORTAL_BUILTIN, test "${enable_portal}" = "builtin")
-
-AC_ARG_ENABLE(loopback,
-       AC_HELP_STRING([--enable-loopback], [enable loopback support]),
-                       [enable_loopback=${enableval}], [enable_loopback="no"])
-if (test "${enable_loopback}" != "no"); then
-       AC_CHECK_HEADERS(sys/inotify.h, dummy=yes,
-                       AC_MSG_ERROR(inotify header files are required))
-
-       AC_CHECK_LIB(c, inotify_init, dummy=yes,
-                       AC_MSG_ERROR(inotify library support is required))
+AC_ARG_WITH(openvpn, AC_HELP_STRING([--with-openvpn=PROGRAM],
+        [specify location of openvpn binary]), [path_openvpn=${withval}])
+
+AC_ARG_ENABLE(openvpn,
+       AC_HELP_STRING([--enable-openvpn], [enable openvpn support]),
+                       [enable_openvpn=${enableval}], [enable_openvpn="no"])
+if (test "${enable_openvpn}" != "no"); then
+       if (test -z "${path_openvpn}"); then
+               AC_PATH_PROG(OPENVPN, [openvpn], [], $PATH:/sbin:/usr/sbin)
+               if (test -z "${OPENVPN}"); then
+                       AC_MSG_ERROR(openvpn binary not found)
+               fi
+       else
+               OPENVPN="${path_openvpn}"
+               AC_SUBST(OPENVPN)
+       fi
 fi
-AM_CONDITIONAL(LOOPBACK, test "${enable_loopback}" != "no")
-AM_CONDITIONAL(LOOPBACK_BUILTIN, test "${enable_loopback}" = "builtin")
-
-AC_ARG_ENABLE(dnsproxy,
-       AC_HELP_STRING([--enable-dnsproxy], [enable DNS proxy support]),
-                       [enable_dnsproxy=${enableval}], [enable_dnsproxy="no"])
-
-AM_CONDITIONAL(DNSPROXY, test "${enable_dnsproxy}" != "no")
-AM_CONDITIONAL(DNSPROXY_BUILTIN, test "${enable_dnsproxy}" = "builtin")
-
-AC_ARG_ENABLE(google,
-       AC_HELP_STRING([--enable-google], [enable Google Public DNS support]),
-                       [enable_google=${enableval}], [enable_google="no"])
-AM_CONDITIONAL(GOOGLE, test "${enable_google}" != "no")
-AM_CONDITIONAL(GOOGLE_BUILTIN, test "${enable_google}" = "builtin")
-
-AC_ARG_ENABLE(meego,
-       AC_HELP_STRING([--enable-meego], [enable MeeGo features support]),
-                       [enable_meego=${enableval}], [enable_meego="no"])
-AM_CONDITIONAL(MEEGO, test "${enable_meego}" != "no")
-AM_CONDITIONAL(MEEGO_BUILTIN, test "${enable_meego}" = "builtin")
+AM_CONDITIONAL(OPENVPN, test "${enable_openvpn}" != "no")
+AM_CONDITIONAL(OPENVPN_BUILTIN, test "${enable_openvpn}" = "builtin")
+
+AC_ARG_WITH(vpnc, AC_HELP_STRING([--with-vpnc=PROGRAM],
+       [specify location of vpnc binary]), [path_vpnc=${withval}])
+
+AC_ARG_ENABLE(vpnc,
+       AC_HELP_STRING([--enable-vpnc], [enable vpnc support]),
+               [enable_vpnc=${enableval}], [enable_vpnc="no"])
+if (test "${enable_vpnc}" != "no"); then
+       if (test -z "${path_vpnc}"); then
+               AC_PATH_PROG(VPNC, [vpnc], [], $PATH:/sbin:/usr/sbin)
+               if (test -z "${VPNC}"); then
+                       AC_MSG_ERROR(vpnc binary not found)
+               fi
+       else
+               VPNC="${path_vpnc}"
+               AC_SUBST(VPNC)
+       fi
+fi
+AM_CONDITIONAL(VPNC, test "${enable_vpnc}" != "no")
+AM_CONDITIONAL(VPNC_BUILTIN, test "${enable_vpnc}" = "builtin")
+
+AC_ARG_ENABLE(l2tp,
+       AC_HELP_STRING([--enable-l2tp], [enable l2tp support]),
+                       [enable_l2tp=${enableval}], [enable_l2tp="no"])
+if (test "${enable_l2tp}" != "no"); then
+       if (test -z "${path_pppd}"); then
+               AC_PATH_PROG(PPPD, [pppd], [/usr/sbin/pppd], $PATH:/sbin:/usr/sbin)
+       else
+               PPPD="${path_pppd}"
+               AC_SUBST(PPPD)
+       fi
+       AC_CHECK_HEADERS(pppd/pppd.h, dummy=yes,
+                       AC_MSG_ERROR(ppp header files are required))
+       if (test -z "${path_l2tp}"); then
+               AC_PATH_PROG(L2TP, [xl2tpd], [/usr/sbin/xl2tpd], $PATH:/sbin:/usr/sbin)
+       else
+               L2TP="${path_l2tp}"
+               AC_SUBST(L2TP)
+       fi
+fi
+AM_CONDITIONAL(L2TP, test "${enable_l2tp}" != "no")
+AM_CONDITIONAL(L2TP_BUILTIN, test "${enable_l2tp}" = "builtin")
+
+AC_ARG_ENABLE(pptp,
+       AC_HELP_STRING([--enable-pptp], [enable pptp support]),
+                       [enable_pptp=${enableval}], [enable_pptp="no"])
+if (test "${enable_pptp}" != "no"); then
+       if (test -z "${path_pppd}"); then
+               AC_PATH_PROG(PPPD, [pppd], [/usr/sbin/pppd], $PATH:/sbin:/usr/sbin)
+       else
+               PPPD="${path_pppd}"
+               AC_SUBST(PPPD)
+       fi
+       AC_CHECK_HEADERS(pppd/pppd.h, dummy=yes,
+                       AC_MSG_ERROR(ppp header files are required))
+       if (test -z "${path_pptp}"); then
+               AC_PATH_PROG(PPTP, [pptp], [/usr/sbin/pptp], $PATH:/sbin:/usr/sbin)
+       else
+               PPTP="${path_pptp}"
+               AC_SUBST(PPTP)
+       fi
+fi
+AM_CONDITIONAL(PPTP, test "${enable_pptp}" != "no")
+AM_CONDITIONAL(PPTP_BUILTIN, test "${enable_pptp}" = "builtin")
 
 AC_CHECK_HEADERS(resolv.h, dummy=yes,
        AC_MSG_ERROR(resolver header files are required))
@@ -177,6 +178,9 @@ AC_CHECK_LIB(resolv, ns_initparse, dummy=yes, [
                AC_MSG_ERROR(resolver library support is required))
 ])
 
+AC_CHECK_FUNC(signalfd, dummy=yes,
+                       AC_MSG_ERROR(signalfd support is required))
+
 AC_CHECK_LIB(dl, dlopen, dummy=yes,
                        AC_MSG_ERROR(dynamic linking loader is required))
 
@@ -242,26 +246,25 @@ AC_ARG_ENABLE(iospm, AC_HELP_STRING([--enable-iospm],
                [enable Intel OSPM support]), [enable_iospm=${enableval}])
 AM_CONDITIONAL(IOSPM, test "${enable_iospm}" = "yes")
 
-AC_ARG_WITH(ntpd, AC_HELP_STRING([--with-=PROGRAM],
-       [specify ntpd binary location]), [path_ntpd=${withval}])
+AC_ARG_ENABLE(tist,
+       AC_HELP_STRING([--enable-tist], [enable TI Shared Transport support]),
+                       [enable_tist=${enableval}], [enable_tist="no"])
+AM_CONDITIONAL(TIST, test "${enable_tist}" != "no")
+AM_CONDITIONAL(TIST_BUILTIN, test "${enable_tist}" = "builtin")
 
-AC_ARG_ENABLE(ntpd,
-       AC_HELP_STRING([--enable-ntpd], [enable ntpd support]),
-                       [enable_ntpd=${enableval}], [enable_ntpd="no"])
+AC_ARG_WITH(stats-max-file-size, AC_HELP_STRING([--with-stats-max-file-size=SIZE],
+                       [Maximal size of a statistics round robin file]),
+                       [stats_max_file_size=${withval}])
 
-if (test "${enable_ntpd}" != "no"); then
-       if (test -z "${path_ntpd}"); then
-               AC_PATH_PROG(NTPD, [ntpd], [], $PATH:/sbin:/usr/sbin)
-       else
-               NTPD="${path_ntpd}"
-               AC_SUBST(NTPD)
-       fi
+if (test -z "${stats_max_file_size}"); then
+   # default size is 16 kByte
+   stats_max_file_size="16 * 8 * 128"
 fi
-AM_CONDITIONAL(NTPD, test "${enable_ntpd}" != "no")
-AM_CONDITIONAL(NTPD_BUILTIN, test "${enable_ntpd}" = "builtin")
 
-PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.16, dummy=yes,
-                               AC_MSG_ERROR(GLib >= 2.16 is required))
+AC_DEFINE_UNQUOTED([STATS_MAX_FILE_SIZE], (${stats_max_file_size}), [Maximal size of a statistics round robin file])
+
+PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.28, dummy=yes,
+                               AC_MSG_ERROR(GLib >= 2.28 is required))
 AC_SUBST(GLIB_CFLAGS)
 AC_SUBST(GLIB_LIBS)
 
@@ -273,26 +276,56 @@ if (test "${enable_threads}" = "yes"); then
        GLIB_LIBS="$GLIB_LIBS $GTHREAD_LIBS"
 fi
 
-PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, dummy=yes,
-                               AC_MSG_ERROR(D-Bus >= 1.0 is required))
-AC_CHECK_LIB(dbus-1, dbus_watch_get_unix_fd, dummy=yes,
-       AC_DEFINE(NEED_DBUS_WATCH_GET_UNIX_FD, 1,
-               [Define to 1 if you need the dbus_watch_get_unix_fd() function.]))
+PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.4, dummy=yes,
+                               AC_MSG_ERROR(D-Bus >= 1.4 is required))
 AC_SUBST(DBUS_CFLAGS)
 AC_SUBST(DBUS_LIBS)
 
-AC_ARG_WITH(dbusconf, AC_HELP_STRING([--with-dbusconf=PATH],
+AC_ARG_WITH(dbusconfdir, AC_HELP_STRING([--with-dbusconfdir=PATH],
        [path to D-Bus config directory]), [path_dbusconf=${withval}],
                [path_dbusconf="`$PKG_CONFIG --variable=sysconfdir dbus-1`"])
 if (test -z "${path_dbusconf}"); then
-       DBUS_DATADIR="${sysconfdir}/dbus-1/system.d"
+       DBUS_CONFDIR="${sysconfdir}/dbus-1/system.d"
 else
-       DBUS_DATADIR="${path_dbusconf}/dbus-1/system.d"
+       DBUS_CONFDIR="${path_dbusconf}/dbus-1/system.d"
+fi
+AC_SUBST(DBUS_CONFDIR)
+
+AC_ARG_WITH(dbusdatadir, AC_HELP_STRING([--with-dbusdatadir=PATH],
+       [path to D-Bus data directory]), [path_dbusdata=${withval}],
+               [path_dbusdata="`$PKG_CONFIG --variable=datadir dbus-1`"])
+if (test -z "${path_dbusdata}"); then
+       DBUS_DATADIR="${datadir}/dbus-1/system-services"
+else
+       DBUS_DATADIR="${path_dbusdata}/dbus-1/system-services"
 fi
 AC_SUBST(DBUS_DATADIR)
 
-AC_ARG_ENABLE(polkit,
-       AC_HELP_STRING([--enable-polkit], [enable PolicyKit support]),
+AC_ARG_WITH([systemdunitdir], AC_HELP_STRING([--with-systemdunitdir=DIR],
+       [path to systemd service directory]), [path_systemdunit=${withval}],
+               [path_systemdunit="`$PKG_CONFIG --variable=systemdsystemunitdir systemd`"])
+if (test -n "${path_systemdunit}"); then
+       SYSTEMD_UNITDIR="${path_systemdunit}"
+       AC_SUBST(SYSTEMD_UNITDIR)
+fi
+AM_CONDITIONAL(SYSTEMD, test -n "${path_systemdunit}")
+
+PKG_CHECK_MODULES(XTABLES, xtables, dummy=yes,
+                               AC_MSG_ERROR(Xtables library is required))
+AC_SUBST(XTABLES_CFLAGS)
+AC_SUBST(XTABLES_LIBS)
+
+AC_ARG_ENABLE(test, AC_HELP_STRING([--enable-test],
+               [enable test/example scripts]), [enable_test=${enableval}])
+AM_CONDITIONAL(TEST, test "${enable_test}" = "yes")
+
+AC_ARG_ENABLE(nmcompat, AC_HELP_STRING([--enable-nmcompat],
+                               [enable Network Manager support]),
+                       [enable_nmcompat=${enableval}], [enable_nmcompat="no"])
+AM_CONDITIONAL(NMCOMPAT, test "${enable_nmcompat}" != "no")
+
+AC_ARG_ENABLE(polkit, AC_HELP_STRING([--enable-polkit],
+                               [enable PolicyKit support]),
                        [enable_polkit=${enableval}], [enable_polkit="no"])
 if (test "${enable_polkit}" != "no"); then
        POLKIT_DATADIR="`$PKG_CONFIG --variable=actiondir polkit`"
@@ -303,64 +336,79 @@ if (test "${enable_polkit}" != "no"); then
        AC_SUBST(POLKIT_DATADIR)
 fi
 AM_CONDITIONAL(POLKIT, test "${enable_polkit}" != "no")
-AM_CONDITIONAL(POLKIT_BUILTIN, test "${enable_polkit}" = "builtin")
-
-AC_ARG_ENABLE(client, AC_HELP_STRING([--enable-client],
-               [enable command line client]), [enable_client=${enableval}])
-AM_CONDITIONAL(CLIENT, test "${enable_client}" = "yes")
-
-AC_ARG_ENABLE(tools, AC_HELP_STRING([--enable-tools],
-               [enable testing tools]), [enable_tools=${enableval}])
-if (test "${enable_tools}" = "yes"); then
-       PKG_CHECK_MODULES(IPTC, libiptc, dummy=yes,
-                               AC_MSG_ERROR(iptables library is required))
-       AC_SUBST(IPTC_CFLAGS)
-       AC_SUBST(IPTC_LIBS)
-
-       PKG_CHECK_MODULES(NETLINK, libnl-1, dummy=yes,
-                               AC_MSG_ERROR(Netlink library is required))
-       AC_SUBST(NETLINK_CFLAGS)
-       AC_SUBST(NETLINK_LIBS)
-fi
-AM_CONDITIONAL(TOOLS, test "${enable_tools}" = "yes")
 
-AC_ARG_ENABLE(test, AC_HELP_STRING([--enable-test],
-               [enable test/example scripts]), [enable_test=${enableval}])
-AM_CONDITIONAL(TEST, test "${enable_test}" = "yes")
+AC_ARG_ENABLE(loopback, AC_HELP_STRING([--disable-loopback],
+                               [disable loopback support]),
+                                       [enable_loopback=${enableval}])
+AM_CONDITIONAL(LOOPBACK, test "${enable_loopback}" != "no")
 
-AC_ARG_ENABLE(fake, AC_HELP_STRING([--enable-fake],
-               [enable fake device support]), [enable_fake=${enableval}])
-AM_CONDITIONAL(FAKE, test "${enable_fake}" = "yes")
-
-AC_ARG_ENABLE(capng, AC_HELP_STRING([--enable-capng],
-               [enable capabilities support]), [enable_capng=${enableval}])
-if (test "${enable_capng}" = "yes"); then
-       PKG_CHECK_MODULES(CAPNG, libcap-ng, dummy=yes,
-                               AC_MSG_ERROR(Capabilities library is required))
-       AC_SUBST(CAPNG_CFLAGS)
-       AC_SUBST(CAPNG_LIBS)
-       AC_DEFINE(HAVE_CAPNG, 1, [Define to 1 if you have capabilities library.])
+AC_ARG_ENABLE(ethernet, AC_HELP_STRING([--disable-ethernet],
+                               [disable Ethernet support]),
+                                       [enable_ethernet=${enableval}])
+AM_CONDITIONAL(ETHERNET, test "${enable_ethernet}" != "no")
+
+AC_ARG_ENABLE(wifi, AC_HELP_STRING([--disable-wifi],
+                               [disable WiFi support]),
+                                       [enable_wifi=${enableval}])
+AM_CONDITIONAL(WIFI, test "${enable_wifi}" != "no")
+
+AC_ARG_ENABLE(bluetooth, AC_HELP_STRING([--disable-bluetooth],
+                               [disable Bluetooth support]),
+                                       [enable_bluetooth=${enableval}])
+AM_CONDITIONAL(BLUETOOTH, test "${enable_bluetooth}" != "no")
+
+AC_ARG_ENABLE(ofono, AC_HELP_STRING([--disable-ofono],
+                               [disable oFono support]),
+                                       [enable_ofono=${enableval}])
+AM_CONDITIONAL(OFONO, test "${enable_ofono}" != "no")
+
+AC_ARG_ENABLE(dundee, AC_HELP_STRING([--disable-dundee],
+                               [disable dundee support (Bluetooth DUN)]),
+                                       [enable_dundee=${enableval}])
+AM_CONDITIONAL(DUNDEE, test "${enable_dundee}" != "no")
+
+AC_ARG_ENABLE(pacrunner, AC_HELP_STRING([--disable-pacrunner],
+                               [disable PACrunner support]),
+                                       [enable_pacrunner=${enableval}])
+AM_CONDITIONAL(PACRUNNER, test "${enable_pacrunner}" != "no")
+
+AC_ARG_ENABLE(wispr, AC_HELP_STRING([--disable-wispr],
+                               [disable WISPr support]),
+                                       [enable_wispr=${enableval}])
+AM_CONDITIONAL(WISPR, test "${enable_wispr}" != "no")
+
+AC_ARG_ENABLE(tools, AC_HELP_STRING([--disable-tools],
+                               [disable testing tools]),
+                                       [enable_tools=${enableval}])
+AM_CONDITIONAL(TOOLS, test "${enable_tools}" != "no")
+
+AC_ARG_ENABLE(client, AC_HELP_STRING([--disable-client],
+                               [disable command line client]),
+                                       [disable_client=${enableval}])
+AM_CONDITIONAL(CLIENT, test "${enable_client}" != "no")
+
+if (test "${enable_wispr}" != "no"); then
+       PKG_CHECK_MODULES(GNUTLS, gnutls, dummy=yes,
+                               AC_MSG_ERROR(GnuTLS library is required))
+else
+       GNUTLS_CFLAGS=""
+       GNUTLS_LIBS=""
 fi
+AC_SUBST(GNUTLS_CFLAGS)
+AC_SUBST(GNUTLS_LIBS)
 
-AC_ARG_ENABLE(udev, AC_HELP_STRING([--disable-udev],
-                       [don't use udev support even if available]),
-                                               [enable_udev=${enableval}])
-if (test "${enable_udev}" != "no"); then
-       PKG_CHECK_MODULES(UDEV, libudev >= 143,
-                               [enable_udev="yes"], [enable_udev="no"])
+if (test "${enable_loopback}" != "no"); then
+       AC_CHECK_HEADERS(sys/inotify.h, dummy=yes,
+                       AC_MSG_ERROR(inotify header files are required))
+
+       AC_CHECK_LIB(c, inotify_init, dummy=yes,
+                       AC_MSG_ERROR(inotify library support is required))
 fi
-if (test "${enable_udev}" = "yes"); then
-       UDEV_DATADIR="`$PKG_CONFIG --variable=udevdir udev`"
-       if (test -z "${UDEV_DATADIR}"); then
-               UDEV_DATADIR="${sysconfdir}/udev/rules.d"
-       else
-               UDEV_DATADIR="${UDEV_DATADIR}/rules.d"
-       fi
-       AC_SUBST(UDEV_DATADIR)
+
+if (test "${enable_wifi}" != "no"); then
+       AC_PATH_PROG(WPASUPPLICANT, [wpa_supplicant], [],
+                                               $PATH:/sbin:/usr/sbin)
 fi
-AC_SUBST(UDEV_CFLAGS)
-AC_SUBST(UDEV_LIBS)
-AM_CONDITIONAL(UDEV, test "${enable_udev}" = "yes")
 
 AC_ARG_ENABLE(datafiles, AC_HELP_STRING([--disable-datafiles],
                        [don't install configuration and data files]),