contrib/exec-nagios.px: Added a Perl script which handles Nagios plugins.
[collectd.git] / configure.in
index 40016fd..04ba0f8 100644 (file)
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(collectd, 4.0.9)
+AC_INIT(collectd, m4_esyscmd(./version-gen.sh))
 AC_CONFIG_SRCDIR(src/collectd.c)
 AC_CONFIG_HEADERS(src/config.h)
 AM_INIT_AUTOMAKE(dist-bzip2)
@@ -17,6 +17,7 @@ AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
+AM_PROG_CC_C_O
 AM_CONDITIONAL(COMPILER_IS_GCC, test "x$GCC" = "xyes")
 
 dnl configure libtool
@@ -30,29 +31,32 @@ AC_PROG_LEX
 AC_PROG_YACC
 AC_CONFIG_SUBDIRS(libltdl)
 
+AC_MSG_CHECKING([for kernel type ($host_os)])
+case $host_os in
+       *linux*)
+       AC_DEFINE([KERNEL_LINUX], 1, [True if program is to be compiled for a Linux kernel])
+       ac_system="Linux"
+       ;;
+       *solaris*)
+       AC_DEFINE([KERNEL_SOLARIS], 1, [True if program is to be compiled for a Solaris kernel])
+       ac_system="Solaris"
+       ;;
+       *darwin*)
+       ac_system="Darwin"
+       ;;
+       *)
+       ac_system="unknown"
+esac
+AC_MSG_RESULT([$ac_system])
+
 #
 # Checks for header files.
 #
 AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
 AC_HEADER_DIRENT
-AC_CHECK_HEADERS(stdint.h)
-AC_CHECK_HEADERS(stdio.h)
-AC_CHECK_HEADERS(errno.h)
-AC_CHECK_HEADERS(math.h)
-AC_CHECK_HEADERS(syslog.h)
-AC_CHECK_HEADERS(fcntl.h)
-AC_CHECK_HEADERS(signal.h)
-AC_CHECK_HEADERS(assert.h)
-AC_CHECK_HEADERS(sys/types.h)
-AC_CHECK_HEADERS(sys/socket.h)
-AC_CHECK_HEADERS(sys/select.h)
-AC_CHECK_HEADERS(poll.h)
-AC_CHECK_HEADERS(netdb.h)
-AC_CHECK_HEADERS(arpa/inet.h)
-AC_CHECK_HEADERS(sys/resource.h)
-AC_CHECK_HEADERS(sys/param.h)
-AC_CHECK_HEADERS(kstat.h)
+
+AC_CHECK_HEADERS(stdint.h stdio.h errno.h math.h stdarg.h syslog.h fcntl.h signal.h assert.h sys/types.h sys/socket.h sys/select.h poll.h netdb.h arpa/inet.h sys/resource.h sys/param.h kstat.h regex.h sys/ioctl.h)
 
 # For ping library
 AC_CHECK_HEADERS(netinet/in_systm.h, [], [],
@@ -189,6 +193,12 @@ AC_CHECK_HEADERS(netinet/udp.h, [], [],
 ])
 
 # For cpu modules
+AC_CHECK_HEADERS(sys/dkstat.h)
+if test "x$ac_system" = "xDarwin"
+then
+       AC_CHECK_HEADERS(mach/mach_init.h mach/host_priv.h mach/mach_error.h mach/mach_host.h mach/mach_port.h mach/mach_types.h mach/message.h mach/processor_set.h mach/processor.h mach/processor_info.h mach/task.h mach/thread_act.h mach/vm_region.h mach/vm_map.h mach/vm_prot.h mach/vm_statistics.h mach/kern_return.h)
+       AC_CHECK_HEADERS(CoreFoundation/CoreFoundation.h IOKit/IOKitLib.h IOKit/IOTypes.h IOKit/ps/IOPSKeys.h IOKit/IOBSD.h IOKit/storage/IOBlockStorageDriver.h)
+fi
 AC_CHECK_HEADERS(sys/sysctl.h, [], [],
 [
 #if HAVE_SYS_TYPES_H
@@ -198,33 +208,9 @@ AC_CHECK_HEADERS(sys/sysctl.h, [], [],
 # include <sys/param.h>
 #endif
 ])
-AC_CHECK_HEADERS(sys/dkstat.h)
-AC_CHECK_HEADERS(mach/mach_init.h)
-AC_CHECK_HEADERS(mach/host_priv.h)
-AC_CHECK_HEADERS(mach/mach_error.h)
-AC_CHECK_HEADERS(mach/mach_host.h)
-AC_CHECK_HEADERS(mach/mach_port.h)
-AC_CHECK_HEADERS(mach/mach_types.h)
-AC_CHECK_HEADERS(mach/message.h)
-AC_CHECK_HEADERS(mach/processor_set.h)
-AC_CHECK_HEADERS(mach/processor.h)
-AC_CHECK_HEADERS(mach/processor_info.h)
-AC_CHECK_HEADERS(mach/task.h)
-AC_CHECK_HEADERS(mach/thread_act.h)
-AC_CHECK_HEADERS(mach/vm_region.h)
-AC_CHECK_HEADERS(mach/vm_map.h)
-AC_CHECK_HEADERS(mach/vm_prot.h)
-AC_CHECK_HEADERS(mach/vm_statistics.h)
-AC_CHECK_HEADERS(mach/kern_return.h)
 
 # For hddtemp module
-AC_CHECK_HEADERS(linux/major.h)
-AC_CHECK_HEADERS(libgen.h)
-
-# For the apple_sensors module
-AC_CHECK_HEADERS(CoreFoundation/CoreFoundation.h)
-AC_CHECK_HEADERS(IOKit/IOKitLib.h)
-AC_CHECK_HEADERS(IOKit/IOTypes.h)
+AC_CHECK_HEADERS(linux/major.h libgen.h)
 
 # For the battery plugin
 AC_CHECK_HEADERS(IOKit/ps/IOPowerSources.h, [], [],
@@ -236,17 +222,6 @@ AC_CHECK_HEADERS(IOKit/ps/IOPowerSources.h, [], [],
 #  include <IOKit/IOTypes.h>
 #endif
 ])
-AC_CHECK_HEADERS(IOKit/ps/IOPSKeys.h)
-
-# For the `disk' plugin
-AC_CHECK_HEADERS(IOKit/IOBSD.h)
-AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDriver.h)
-
-# For load module
-AC_CHECK_HEADERS(sys/loadavg.h)
-
-# For the processes plugin
-AC_CHECK_HEADERS(linux/config.h)
 
 # For the swap module
 AC_CHECK_HEADERS(sys/swap.h, [], [],
@@ -259,9 +234,10 @@ AC_CHECK_HEADERS(sys/swap.h, [], [],
 #endif
 ])
 
+# For load module
+# For the processes plugin
 # For users module
-AC_CHECK_HEADERS(utmp.h)
-AC_CHECK_HEADERS(utmpx.h)
+AC_CHECK_HEADERS(sys/loadavg.h linux/config.h utmp.h utmpx.h)
 
 # For interface plugin
 AC_CHECK_HEADERS(ifaddrs.h)
@@ -296,11 +272,16 @@ AC_CHECK_HEADERS(linux/netdevice.h, [], [],
 #endif
 ])
 
-# For apache plugin
-AC_CHECK_HEADERS(curl/curl.h)
+# For ipvs module
+have_net_ip_vs_h="no"
+have_ip_vs_h="no"
+if test "x$ac_system" = "xLinux"
+then
+       AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
+       AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
+fi
 
 # For quota module
-AC_CHECK_HEADERS(pwd.h)
 AC_CHECK_HEADERS(sys/ucred.h, [], [],
 [
 #if HAVE_SYS_TYPES_H
@@ -310,21 +291,8 @@ AC_CHECK_HEADERS(sys/ucred.h, [], [],
 # include <sys/param.h>
 #endif
 ])
-AC_CHECK_HEADERS(ctype.h)
-AC_CHECK_HEADERS(limits.h)
-AC_CHECK_HEADERS(sys/quota.h)
-AC_CHECK_HEADERS(xfs/xqm.h)
 
 # For mount interface
-AC_CHECK_HEADERS(fs_info.h)
-AC_CHECK_HEADERS(fshelp.h)
-AC_CHECK_HEADERS(paths.h)
-AC_CHECK_HEADERS(mntent.h)
-AC_CHECK_HEADERS(mnttab.h)
-AC_CHECK_HEADERS(sys/fstyp.h)
-AC_CHECK_HEADERS(sys/fs_types.h)
-AC_CHECK_HEADERS(sys/mntent.h)
-AC_CHECK_HEADERS(sys/mnttab.h)
 AC_CHECK_HEADERS(sys/mount.h, [], [],
 [
 #if HAVE_SYS_TYPES_H
@@ -334,13 +302,6 @@ AC_CHECK_HEADERS(sys/mount.h, [], [],
 # include <sys/param.h>
 #endif
 ])
-AC_CHECK_HEADERS(sys/statfs.h)
-AC_CHECK_HEADERS(sys/statvfs.h)
-AC_CHECK_HEADERS(sys/vfs.h)
-AC_CHECK_HEADERS(sys/vfstab.h)
-
-# For the swap plugin, FreeBSD
-AC_CHECK_HEADERS(kvm.h)
 
 # For the email plugin
 AC_CHECK_HEADERS(linux/un.h, [], [],
@@ -349,14 +310,8 @@ AC_CHECK_HEADERS(linux/un.h, [], [],
 #      include <sys/socket.h>
 #endif
 ])
-AC_CHECK_HEADERS(sys/un.h)
-AC_CHECK_HEADERS(grp.h)
 
-# For debugging interface (variable number of arguments)
-AC_CHECK_HEADERS(stdarg.h)
-
-# Regular expressions for the ignorelist.
-AC_CHECK_HEADERS(regex.h)
+AC_CHECK_HEADERS(pwd.h grp.h sys/un.h ctype.h limits.h sys/quota.h xfs/xqm.h fs_info.h fshelp.h paths.h mntent.h mnttab.h sys/fstyp.h sys/fs_types.h sys/mntent.h sys/mnttab.h sys/statfs.h sys/statvfs.h sys/vfs.h sys/vfstab.h kvm.h)
 
 # For the dns plugin
 AC_CHECK_HEADERS(arpa/nameser.h)
@@ -397,13 +352,8 @@ AC_CHECK_HEADERS(netinet/if_ether.h, [], [],
 ])
 
 # For the multimeter plugin
-AC_CHECK_HEADERS(termios.h)
-AC_CHECK_HEADERS(sys/ioctl.h)
-
-#
-# Checking for libraries
-#
-AC_CHECK_LIB(m, ext)
+have_termios_h="no"
+AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])
 
 #
 # Checks for typedefs, structures, and compiler characteristics.
@@ -418,11 +368,7 @@ AC_HEADER_TIME
 # Checks for library functions.
 #
 AC_PROG_GCC_TRADITIONAL
-AC_CHECK_FUNCS(gettimeofday select strdup strtol)
-AC_CHECK_FUNCS(getaddrinfo getnameinfo)
-AC_CHECK_FUNCS(strchr memcpy strstr strcmp strncmp strncpy strlen)
-AC_CHECK_FUNCS(strncasecmp strcasecmp)
-AC_CHECK_FUNCS(openlog syslog closelog)
+AC_CHECK_FUNCS(gettimeofday select strdup strtol getaddrinfo getnameinfo strchr memcpy strstr strcmp strncmp strncpy strlen strncasecmp strcasecmp openlog closelog)
 
 AC_FUNC_STRERROR_R
 
@@ -437,27 +383,22 @@ nanosleep_needs_rt="no"
 AC_CHECK_FUNCS(nanosleep, [], AC_CHECK_LIB(rt, nanosleep, [nanosleep_needs_rt="yes"], AC_MSG_ERROR(cannot find nanosleep)))
 AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$nanosleep_needs_rt" = "xyes")
 
-# Regular expressions for the ignorelist.
 AC_CHECK_FUNCS(regcomp regerror regexec regfree)
 
-# For cpu module
 AC_CHECK_FUNCS(sysctlbyname, [have_sysctlbyname="yes"], [have_sysctlbyname="no"])
-
-# For df module
-AC_CHECK_FUNCS(statfs statvfs)
+AC_CHECK_FUNCS(host_statistics, [have_host_statistics="yes"], [have_host_statistics="no"])
+AC_CHECK_FUNCS(processor_info, [have_processor_info="yes"], [have_processor_info="no"])
+AC_CHECK_FUNCS(thread_info, [have_thread_info="yes"], [have_thread_info="no"])
+AC_CHECK_FUNCS(statfs, [have_statfs="yes"], [have_statfs="no"])
+AC_CHECK_FUNCS(statvfs, [have_statvfs="yes"], [have_statvfs="no"])
+AC_CHECK_FUNCS(getifaddrs, [have_getifaddrs="yes"], [have_getifaddrs="no"])
+AC_CHECK_FUNCS(syslog, [have_syslog="yes"], [have_syslog="no"])
+AC_CHECK_FUNCS(getutent, [have_getutent="yes"], [have_getutent="no"])
+AC_CHECK_FUNCS(getutxent, [have_getutxent="yes"], [have_getutxent="no"])
 
 # For load module
 AC_CHECK_FUNCS(getloadavg, [have_getloadavg="yes"], [have_getloadavg="no"])
 
-# For the `processes' plugin
-AC_CHECK_FUNCS(thread_info)
-
-# For users module
-AC_CHECK_FUNCS(getutent getutxent)
-
-# For interface module
-AC_CHECK_FUNCS(getifaddrs)
-
 # Check for NAN
 AC_ARG_WITH(nan-emulation, [AS_HELP_STRING([--with-nan-emulation], [use emulated NAN. For crosscompiling only.])],
 [
@@ -721,21 +662,6 @@ AC_CHECK_MEMBERS([kstat_io_t.nwritten, kstat_io_t.writes, kstat_io_t.nwrites, ks
 #endif
        ])
 
-AC_MSG_CHECKING([for kernel type ($host_os)])
-case $host_os in
-       *linux*)
-       AC_DEFINE([KERNEL_LINUX], 1, [True if program is to be compiled for a Linux kernel])
-       ac_system="Linux"
-       ;;
-       *solaris*)
-       AC_DEFINE([KERNEL_SOLARIS], 1, [True if program is to be compiled for a Solaris kernel])
-       ac_system="Solaris"
-       ;;
-       *)
-       ac_system="unknown"
-esac
-AC_MSG_RESULT([$ac_system])
-
 with_libresolv="yes"
 AC_CHECK_LIB(resolv, res_search,
 [
@@ -744,40 +670,87 @@ AC_CHECK_LIB(resolv, res_search,
 [with_libresolv="no"])
 AM_CONDITIONAL(BUILD_WITH_LIBRESOLV, test "x$with_libresolv" = "xyes")
 
+dnl Check for HAL (hardware abstraction library)
+with_libhal="yes"
+AC_CHECK_LIB(hal,libhal_device_property_exists,
+            [AC_DEFINE(HAVE_LIBHAL, 1, [Define to 1 if you have 'hal' library])],
+            [with_libhal="no"])
+if test "x$with_libhal" = "xyes"; then
+       PKG_PROG_PKG_CONFIG
+       if test "x$PKG_CONFIG" != "x"; then
+               BUILD_WITH_LIBHAL_CFLAGS="`pkg-config --cflags hal`"
+               BUILD_WITH_LIBHAL_LIBS="`pkg-config --libs hal`"
+               AC_SUBST(BUILD_WITH_LIBHAL_CFLAGS)
+               AC_SUBST(BUILD_WITH_LIBHAL_LIBS)
+       fi
+fi
 
 m4_divert_once([HELP_WITH], [
 collectd additional packages:])
 
 # AC_ARG_WITH (package, help-string, [action-if-given], [action-if-not-given])
+librrd_cflags=""
+librrd_ldflags=""
+librrd_threadsafe="yes"
 AC_ARG_WITH(rrdtool, [AS_HELP_STRING([--with-rrdtool@<:@=PREFIX@:>@], [Path to rrdtool.])],
 [      if test "x$withval" != "xno" && test "x$withval" != "xyes"
        then
-               LDFLAGS="$LDFLAGS -L$withval/lib"
-               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               librrd_cflags="-I$withval/include"
+               librrd_ldflags="-L$withval/lib"
                with_rrdtool="yes"
+       else
+               with_rrdtool="$withval"
        fi
 ], [with_rrdtool="yes"])
 if test "x$with_rrdtool" = "xyes"
 then
-       AC_CHECK_LIB(rrd, rrd_update,
-       [
-               AC_DEFINE(HAVE_LIBRRD, 1, [Define to 1 if you have the rrd library (-lrrd).])
-       ],
-       [with_rrdtool="no (librrd not found)"], [-lm])
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
+
+       CPPFLAGS="$CPPFLAGS $librrd_cflags"
+       LDFLAGS="$LDFLAGS $librrd_ldflags"
+
+       AC_CHECK_HEADERS(rrd.h,, [with_rrdtool="no (rrd.h not found)"])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 if test "x$with_rrdtool" = "xyes"
 then
-       AC_CHECK_HEADERS(rrd.h,, [with_rrdtool="no (rrd.h not found)"])
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
+
+       CPPFLAGS="$CPPFLAGS $librrd_cflags"
+       LDFLAGS="$LDFLAGS $librrd_ldflags"
+
+       AC_CHECK_LIB(rrd_th, rrd_update_r,
+       [with_rrdtool="yes"
+        librrd_ldflags="$librrd_ldflags -lrrd_th -lm"
+       ],
+       [librrd_threadsafe="no"
+        AC_CHECK_LIB(rrd, rrd_update,
+        [with_rrdtool="yes"
+         librrd_ldflags="$librrd_ldflags -lrrd -lm"
+        ],
+        [with_rrdtool="no (symbol 'rrd_update' not found)"],
+        [-lm])
+       ]
+       [-lm])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 if test "x$with_rrdtool" = "xyes"
 then
-       collect_rrdtool=1
-else
-       collect_rrdtool=0
+       BUILD_WITH_LIBRRD_CFLAGS="$librrd_cflags"
+       BUILD_WITH_LIBRRD_LDFLAGS="$librrd_ldflags"
+       AC_SUBST(BUILD_WITH_LIBRRD_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBRRD_LDFLAGS)
+fi
+if test "x$librrd_threadsafe" = "xyes"
+then
+       AC_DEFINE(HAVE_THREADSAFE_LIBRRD, 1, [Define to 1 if you have the threadsafe rrd library (-lrrd_th).])
 fi
-AC_DEFINE_UNQUOTED(COLLECT_RRDTOOL, [$collect_rrdtool],
-       [Wether or not to use rrdtool library])
-AM_CONDITIONAL(BUILD_WITH_RRDTOOL, test "x$with_rrdtool" = "xyes")
 
 AC_ARG_WITH(libpthread, [AS_HELP_STRING([--with-libpthread=@<:@=PREFIX@:>@], [Path to libpthread.])],
 [      if test "x$withval" != "xno" -a "x$withval" != "xyes"
@@ -810,7 +783,7 @@ AC_DEFINE_UNQUOTED(HAVE_LIBPTHREAD, [$collect_pthread],
        [Wether or not to use pthread (POSIX threads) library])
 AM_CONDITIONAL(BUILD_WITH_LIBPTHREAD, test "x$with_libpthread" = "xyes")
 
-if test "$ac_system" = "Solaris"
+if test "x$ac_system" = "xSolaris"
 then
        with_kstat="yes"
        with_devinfo="yes"
@@ -849,13 +822,16 @@ AC_ARG_WITH(libcurl, [AS_HELP_STRING([--with-libcurl@<:@=PREFIX@:>@], [Path to l
        then
                with_libcurl="yes"
        else
-               if test -x "$withval"
+               if test -f "$withval" && test -x "$withval"
                then
                        with_curl_config="$withval"
+                       with_libcurl="yes"
                else if test -x "$withval/bin/curl-config"
                then
                        with_curl_config="$withval/bin/curl-config"
+                       with_libcurl="yes"
                fi; fi
+               with_libcurl="yes"
        fi; fi
 ],
 [
@@ -868,7 +844,7 @@ then
 
        if test $curl_config_status -ne 0
        then
-               with_libcurl="no"
+               with_libcurl="no ($with_curl_config failed)"
        else
                SAVE_CFLAGS=$CFLAGS
                CFLAGS="$CFLAGS $with_curl_cflags"
@@ -885,15 +861,10 @@ then
 
        if test $curl_config_status -ne 0
        then
-               with_libcurl="no"
+               with_libcurl="no ($with_curl_config failed)"
        else
                AC_CHECK_LIB(curl, curl_easy_init,
-                [
-                 # We need to do this to have `HAVE_LIBCURL' defined but
-                 # `-lcurl' NOT added to the default LDFLAGS.
-                       AC_DEFINE(HAVE_LIBCURL, 1,
-                                 [Define to 1 if you have the curl library.])
-                ],
+                [with_libcurl="yes"],
                 [with_libcurl="no (symbol 'curl_easy_init' not found)"],
                 [$with_curl_libs])
        fi
@@ -914,7 +885,7 @@ AC_CHECK_LIB(IOKit, IOServiceGetMatchingServices,
 [
        with_libiokit="yes"
        collectd_libiokit=1
-], 
+],
 [
        with_libiokit="no"
        collectd_libiokit=0
@@ -931,6 +902,8 @@ AC_ARG_WITH(libstatgrab, [AS_HELP_STRING([--with-libstatgrab@<:@=PREFIX@:>@], [P
                LDFLAGS="$LDFLAGS -L$withval/lib"
                CPPFLAGS="$CPPFLAGS -I$withval/include"
                with_libstatgrab="yes"
+       else
+               with_libstatgrab="$withval"
        fi
 ],
 [
@@ -971,13 +944,21 @@ then
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBKVM, test "x$with_libkvm" = "xyes")
 
+with_sensors_cflags=""
+with_sensors_ldflags=""
 AC_ARG_WITH(lm-sensors, [AS_HELP_STRING([--with-lm-sensors@<:@=PREFIX@:>@], [Path to lm_sensors.])],
 [
-       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       if test "x$withval" = "xno"
        then
-               LDFLAGS="$LDFLAGS -L$withval/lib"
-               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               with_lm_sensors="no"
+       else
                with_lm_sensors="yes"
+               if test "x$withval" != "xyes"
+               then
+                       with_sensors_cflags="-I$withval/include"
+                       with_sensors_ldflags="-L$withval/lib"
+                       with_lm_sensors="yes"
+               fi
        fi
 ],
 [
@@ -985,33 +966,46 @@ AC_ARG_WITH(lm-sensors, [AS_HELP_STRING([--with-lm-sensors@<:@=PREFIX@:>@], [Pat
        then
                with_lm_sensors="yes"
        else
-               with_lm_sensors="no"
+               with_lm_sensors="no (Linux only library)"
        fi
 ])
 if test "x$with_lm_sensors" = "xyes"
 then
-       AC_CHECK_LIB(sensors, sensors_init,
-       [
-               AC_DEFINE(HAVE_LIBSENSORS, 1, [Define to 1 if you have the sensors library (-lsensors).])
-       ],
-       [with_lm_sensors="no (libsensors not found)"])
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       CPPFLAGS="$CPPFLAGS $with_sensors_cflags"
+
+#      AC_CHECK_HEADERS(sensors/sensors.h,
+#      [
+#              AC_DEFINE(HAVE_SENSORS_SENSORS_H, 1, [Define to 1 if you have the <sensors/sensors.h> header file.])
+#      ],
+#      [with_lm_sensors="no (sensors/sensors.h not found)"])
+       AC_CHECK_HEADERS(sensors/sensors.h, [], [with_lm_sensors="no (sensors/sensors.h not found)"])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
 fi
 if test "x$with_lm_sensors" = "xyes"
 then
-       AC_CHECK_HEADERS(sensors/sensors.h,
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
+       CPPFLAGS="$CPPFLAGS $with_sensors_cflags"
+       LDFLAGS="$LDFLAGS $with_sensors_ldflags"
+
+       AC_CHECK_LIB(sensors, sensors_init,
        [
-               AC_DEFINE(HAVE_SENSORS_SENSORS_H, 1, [Define to 1 if you have the <sensors/sensors.h> header file.])
+               AC_DEFINE(HAVE_LIBSENSORS, 1, [Define to 1 if you have the sensors library (-lsensors).])
        ],
-       [with_lm_sensors="no (sensors/sensors.h not found)"])
+       [with_lm_sensors="no (libsensors not found)"])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 if test "x$with_lm_sensors" = "xyes"
 then
-       collect_lm_sensors=1
-else
-       collect_lm_sensors=0
+       BUILD_WITH_LIBSENSORS_CFLAGS="$with_sensors_cflags"
+       BUILD_WITH_LIBSENSORS_LDFLAGS="$with_sensors_ldflags"
+       AC_SUBST(BUILD_WITH_LIBSENSORS_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBSENSORS_LDFLAGS)
 fi
-AC_DEFINE_UNQUOTED(COLLECT_LM_SENSORS, [$collect_lm_sensors],
-       [Wether or not to use sensors library])
 AM_CONDITIONAL(BUILD_WITH_LM_SENSORS, test "x$with_lm_sensors" = "xyes")
 
 with_mysql_config="mysql_config"
@@ -1026,13 +1020,14 @@ AC_ARG_WITH(libmysql, [AS_HELP_STRING([--with-libmysql@<:@=PREFIX@:>@], [Path to
        then
                with_libmysql="yes"
        else
-               if test -x "$withval";
+               if test -f "$withval" && test -x "$withval";
                then
                        with_mysql_config="$withval"
                else if test -x "$withval/bin/mysql_config"
                then
                        with_mysql_config="$withval/bin/mysql_config"
                fi; fi
+               with_libmysql="yes"
        fi; fi
 ],
 [
@@ -1065,13 +1060,8 @@ then
                with_libmysql="no"
        else
                AC_CHECK_LIB(mysqlclient, mysql_init,
-                [
-                 # We need to do this to have `HAVE_LIBMYSQLCLIENT' defined
-                 # but `-lmysqlclient' NOT added to the default LDFLAGS.
-                       AC_DEFINE(HAVE_LIBMYSQLCLIENT, 1,
-                                 [Define to 1 if you have the mysqlclient library.])
-                ],
-                [with_libmysql="no (libmysql not found)"],
+                [with_libmysql="yes"],
+                [with_libmysql="no (symbol 'mysql_init' not found)"],
                 [$with_mysql_libs])
        fi
 fi
@@ -1152,10 +1142,12 @@ AC_ARG_WITH(liboping, [AS_HELP_STRING([--with-liboping@<:@=PREFIX@:>@], [Path to
        then
                with_liboping="no"
                with_own_liboping="no"
-       fi
+       else if test "x$withval" = "xyes"
+       then
+               with_liboping="yes"
+       fi; fi
 ],
 [
-       #753
        with_liboping="yes"
 ])
 
@@ -1179,10 +1171,6 @@ then
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBOPING, test "x$with_liboping" = "xyes")
 AM_CONDITIONAL(BUILD_WITH_OWN_LIBOPING, test "x$with_own_liboping" = "xyes")
-if test "x$with_liboping" = "xyes" -a "x$with_own_liboping" = "xyes"
-then
-       with_liboping="yes (shipped version)"
-fi
 
 AC_ARG_WITH(libpcap, [AS_HELP_STRING([--with-libpcap@<:@=PREFIX@:>@], [Path to libpcap.])],
 [
@@ -1191,6 +1179,8 @@ AC_ARG_WITH(libpcap, [AS_HELP_STRING([--with-libpcap@<:@=PREFIX@:>@], [Path to l
                LDFLAGS="$LDFLAGS -L$withval/lib"
                CPPFLAGS="$CPPFLAGS -I$withval/include"
                with_libpcap="yes"
+       else
+               with_libpcap="$withval"
        fi
 ],
 [
@@ -1229,11 +1219,16 @@ AC_ARG_WITH(libperl, [AS_HELP_STRING([--with-libperl@<:@=PREFIX@:>@], [Path to l
                CPPFLAGS="$CPPFLAGS -I$withval/include"
                perl_interpreter="$withval/bin/perl"
                with_libperl="yes"
+       else
+               with_libperl="$withval"
        fi
 ],
 [
        with_libperl="yes"
 ])
+
+AC_SUBST(PERL, "$perl_interpreter")
+
 if test "x$with_libperl" = "xyes"
 then
   SAVE_CFLAGS=$CFLAGS
@@ -1277,6 +1272,41 @@ then
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBPERL, test "x$with_libperl" = "xyes")
 
+if test "x$with_libperl" = "xyes"
+then
+       SAVE_CFLAGS=$CFLAGS
+       SAVE_LDFLAGS=$LDFLAGS
+       CFLAGS="$CFLAGS $PERL_CFLAGS"
+       LDFLAGS="$LDFLAGS $PERL_LDFLAGS"
+
+       AC_CACHE_CHECK([if perl supports ithreads],
+               [have_perl_ithreads],
+               AC_LINK_IFELSE(
+                       AC_LANG_PROGRAM(
+                       [[
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+
+#if !defined(USE_ITHREADS)
+# error "Perl does not support ithreads!"
+#endif /* !defined(USE_ITHREADS) */
+                       ]],
+                       [[ ]]),
+                       [have_perl_ithreads="yes"],
+                       [have_perl_ithreads="no"]
+               )
+       )
+
+       if test "x$have_perl_ithreads" = "xyes"
+       then
+               AC_DEFINE(HAVE_PERL_ITHREADS, 1, [Define if Perl supports ithreads.])
+       fi
+
+       CFLAGS=$SAVE_CFLAGS
+       LDFLAGS=$SAVE_LDFLAGS
+fi
+
 AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
 [
        if test "x$withval" != "xno" && test "x$withval" != "xyes"
@@ -1284,10 +1314,12 @@ AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to l
                LDFLAGS="$LDFLAGS -L$withval/lib"
                CPPFLAGS="$CPPFLAGS -I$withval/include"
                with_libiptc="yes"
+       else
+               with_libiptc="$withval"
        fi
 ],
 [
-       if test "x$ac_system" = "xLinux"
+       if test "x$ac_system" = "xLinux"
        then
                with_libiptc="yes"
        else
@@ -1316,13 +1348,88 @@ else
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
 
-# TODO: Use `libupsclient-config' here.
+with_snmp_config="net-snmp-config"
+with_snmp_cflags=""
+with_snmp_libs=""
+AC_ARG_WITH(libnetsnmp, [AS_HELP_STRING([--with-libnetsnmp@<:@=PREFIX@:>@], [Path to the Net-SNMPD library.])],
+[
+       if test "x$withval" = "xno"
+       then
+               with_libnetsnmp="no"
+       else if test "x$withval" = "xyes"
+       then
+               with_libnetsnmp="yes"
+       else
+               if test -x "$withval"
+               then
+                       with_snmp_config="$withval"
+                       with_libnetsnmp="yes"
+               else
+                       with_snmp_config="$withval/bin/net-snmp-config"
+                       with_libnetsnmp="yes"
+               fi
+       fi; fi
+],
+[with_libnetsnmp="yes"])
+if test "x$with_libnetsnmp" = "xyes"
+then
+       with_snmp_cflags=`$with_snmp_config --cflags 2>/dev/null`
+       snmp_config_status=$?
+
+       if test $snmp_config_status -ne 0
+       then
+               with_libnetsnmp="no ($with_snmp_config failed)"
+       else
+               SAVE_CFLAGS=$CFLAGS
+               CFLAGS="$CFLAGS $with_snmp_cflags"
+               
+               AC_CHECK_HEADERS(net-snmp/net-snmp-config.h, [], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])
+
+               CFLAGS="$SAVE_CFLAGS"
+       fi
+fi
+if test "x$with_libnetsnmp" = "xyes"
+then
+       with_snmp_libs=`$with_snmp_config --libs 2>/dev/null`
+       snmp_config_status=$?
+
+       if test $snmp_config_status -ne 0
+       then
+               with_libnetsnmp="no ($with_snmp_config failed)"
+       else
+               AC_CHECK_LIB(netsnmp, init_snmp,
+               [with_libnetsnmp="yes"],
+               [with_libnetsnmp="no (libnetsnmp not found)"],
+               [$with_snmp_libs])
+       fi
+fi
+if test "x$with_libnetsnmp" = "xyes"
+then
+       BUILD_WITH_LIBSNMP_CFLAGS="$with_snmp_cflags"
+       BUILD_WITH_LIBSNMP_LIBS="$with_snmp_libs"
+       AC_SUBST(BUILD_WITH_LIBSNMP_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBSNMP_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBNETSNMP, test "x$with_libnetsnmp" = "xyes")
+
+with_upsclient_config="libupsclient-config"
+with_upsclient_cflags=""
+with_upsclient_libs=""
 AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@], [Path to libupsclient.])],
 [
-       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       if test "x$withval" = "xno"
        then
-               LDFLAGS="$LDFLAGS -L$withval/lib"
-               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               with_libupsclient="no"
+       else
+               if test "x$withval" != "xyes"
+               then
+                       if test -f "$withval" && test -x "$withval";
+                       then
+                               with_upsclient_config="$withval"
+                       else
+                               with_upsclient_config="$withval/bin/libupsclient-config"
+                       fi
+               fi
                with_libupsclient="yes"
        fi
 ],
@@ -1331,27 +1438,347 @@ AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@],
 ])
 if test "x$with_libupsclient" = "xyes"
 then
-       AC_CHECK_LIB(upsclient, upscli_connect,
-       [
-               AC_DEFINE(HAVE_LIBUPSCLIENT, 1, [Define to 1 if you have the upsclient library (-lupsclient).])
-       ], [with_libupsclient="no (libupsclient not found)"])
+       with_upsclient_cflags=`$with_upsclient_config --cflags 2>/dev/null`
+       upsclient_config_status=$?
+
+       if test $upsclient_config_status -ne 0
+       then
+               with_libupsclient="no ($with_upsclient_config failed)"
+       fi
+fi
+if test "x$with_libupsclient" = "xyes"
+then
+       SAVE_CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS $with_upsclient_cflags"
+
+       AC_CHECK_HEADERS(upsclient.h, [], [with_libupsclient="no (upsclient.h not found)"])
+
+       CFLAGS="$SAVE_CFLAGS"
+fi
+if test "x$with_libupsclient" = "xyes"
+then
+       with_upsclient_libs=`$with_upsclient_config --libs 2>/dev/null`
+       upsclient_config_status=$?
+
+       if test $upsclient_config_status -ne 0
+       then
+               with_libupsclient="no ($with_upsclient_config failed)"
+       fi
 fi
 if test "x$with_libupsclient" = "xyes"
 then
-       AC_CHECK_HEADERS(upsclient.h,
+       AC_CHECK_LIB(upsclient, upscli_connect,
        [
-               AC_DEFINE(HAVE_UPSCLIENT_H, 1, [Define to 1 if you have the <upsclient.h> header file.])
-       ], [with_libupsclient="no (upsclient.h not found)"])
+               BUILD_WITH_LIBUPSCLIENT_CFLAGS="$with_upsclient_cflags"
+               BUILD_WITH_LIBUPSCLIENT_LIBS="$with_upsclient_libs"
+               AC_SUBST(BUILD_WITH_LIBUPSCLIENT_CFLAGS)
+               AC_SUBST(BUILD_WITH_LIBUPSCLIENT_LIBS)
+       ],
+       [
+               with_libupsclient="no (symbol 'upscli_connect' not found)"
+       ], [$with_upsclient_libs])
 fi
 if test "x$with_libupsclient" = "xyes"
 then
-       AC_CHECK_TYPES([UPSCONN_t, UPSCONN], [], [], 
+       AC_CHECK_TYPES([UPSCONN_t, UPSCONN], [], [],
 [#include <stdlib.h>
 #include <stdio.h>
 #include <upsclient.h>])
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBUPSCLIENT, test "x$with_libupsclient" = "xyes")
 
+### BEGIN of check for libxmms ###
+with_xmms_config="xmms-config"
+with_xmms_cflags=""
+with_xmms_libs=""
+AC_ARG_WITH(libxmms, [AS_HELP_STRING([--with-libxmms@<:@=PREFIX@:>@], [Path to libxmms.])],
+[
+       if test "x$withval" != "xno" -a "x$withval" != "xyes"
+       then
+               if test -f "$withval" && test -x "$withval";
+               then
+                       with_xmms_config="$withval"
+               else if test -x "$withval/bin/xmms-config"
+               then
+                       with_xmms_config="$withval/bin/xmms-config"
+               fi; fi
+               with_libxmms="yes"
+       else if test "x$withval" = "xno"
+       then
+               with_libxmms="no"
+       else
+               with_libxmms="yes"
+       fi; fi
+],
+[
+       with_libxmms="yes"
+])
+if test "x$with_libxmms" = "xyes"
+then
+       with_xmms_cflags=`$with_xmms_config --cflags 2>/dev/null`
+       xmms_config_status=$?
+
+       if test $xmms_config_status -ne 0
+       then
+               with_libxmms="no"
+       fi
+fi
+if test "x$with_libxmms" = "xyes"
+then
+       with_xmms_libs=`$with_xmms_config --libs 2>/dev/null`
+       xmms_config_status=$?
+
+       if test $xmms_config_status -ne 0
+       then
+               with_libxmms="no"
+       fi
+fi
+if test "x$with_libxmms" = "xyes"
+then
+       AC_CHECK_LIB(xmms, xmms_remote_get_info,
+       [
+               BUILD_WITH_LIBXMMS_CFLAGS="$with_xmms_cflags"
+               BUILD_WITH_LIBXMMS_LIBS="$with_xmms_libs"
+               AC_SUBST(BUILD_WITH_LIBXMMS_CFLAGS)
+               AC_SUBST(BUILD_WITH_LIBXMMS_LIBS)
+       ],
+       [
+               with_libxmms="no"
+       ],
+       [$with_xmms_libs])
+fi
+with_libxmms_numeric=0
+if test "x$with_libxmms" = "xyes"
+then
+       with_libxmms_numeric=1
+fi
+AC_DEFINE_UNQUOTED(HAVE_LIBXMMS, [$with_libxmms_numeric], [Define to 1 if you have the 'xmms' library (-lxmms).])
+AM_CONDITIONAL(BUILD_WITH_LIBXMMS, test "x$with_libxmms" = "xyes")
+### END of check for libxmms ###
+
+with_libnetlink_cflags=""
+with_libnetlink_libs="-lnetlink"
+AC_ARG_WITH(libnetlink, [AS_HELP_STRING([--with-libnetlink@<:@=PREFIX@:>@], [Path to libnetlink.])],
+[
+ echo "libnetlink: withval = $withval"
+ if test "x$withval" = "xyes"
+ then
+        with_libnetlink="yes"
+ else if test "x$withval" = "xno"
+ then
+        with_libnetlink="no"
+ else
+        if test -d "$withval/include"
+        then
+                with_libnetlink_cflags="-I$withval/include"
+                with_libnetlink_libs="-L$withval/lib -lnetlink"
+                with_libnetlink="yes"
+        else
+                AC_MSG_ERROR("no such directory: $withval/include")
+        fi
+ fi; fi
+],
+[
+ if test "x$ac_system" = "xLinux"
+ then
+        with_libnetlink="yes"
+ else
+        with_libnetlink="no (Linux only library)"
+ fi
+])
+if test "x$with_libnetlink" = "xyes"
+then
+       SAVE_CFLAGS=$CFLAGS
+       CFLAGS="$CFLAGS $with_libnetlink_cflags"
+
+       with_libnetlink="no (libnetlink.h not found)"
+
+       AC_CHECK_HEADERS(libnetlink.h iproute/libnetlink.h linux/libnetlink.h,
+       [
+        with_libnetlink="yes"
+        break
+       ], [],
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>])
+       AC_CHECK_HEADERS(linux/gen_stats.h linux/pkt_sched.h, [], [],
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>])
+
+       AC_COMPILE_IFELSE(
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+
+int main (void)
+{
+       int retval = TCA_STATS2;
+       return (retval);
+}],
+       [AC_DEFINE([HAVE_TCA_STATS2], 1, [True if the enum-member TCA_STATS2 exists])]
+       []);
+
+       AC_COMPILE_IFELSE(
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+
+int main (void)
+{
+       int retval = TCA_STATS;
+       return (retval);
+}],
+       [AC_DEFINE([HAVE_TCA_STATS], 1, [True if the enum-member TCA_STATS exists])]
+       []);
+
+       CFLAGS="$SAVE_CFLAGS"
+fi
+if test "x$with_libnetlink" = "xyes"
+then
+       AC_CHECK_LIB(netlink, rtnl_open,
+                    [with_libnetlink="yes"],
+                    [with_libnetlink="no (symbol 'rtnl_open' not found)"],
+                    [$with_libnetlink_libs])
+fi
+if test "x$with_libnetlink" = "xyes"
+then
+       BUILD_WITH_LIBNETLINK_CFLAGS="$with_libnetlink_cflags"
+       BUILD_WITH_LIBNETLINK_LIBS="$with_libnetlink_libs"
+       AC_SUBST(BUILD_WITH_LIBNETLINK_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBNETLINK_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBNETLINK, test "x$with_libnetlink" = "xyes")
+
+dnl Check for libvirt and libxml2 libraries.
+with_libxml2="no (pkg-config isn't available)"
+with_libxml2_cflags=""
+with_libxml2_ldflags=""
+with_libvirt="no (pkg-config isn't available)"
+with_libvirt_cflags=""
+with_libvirt_ldflags=""
+PKG_PROG_PKG_CONFIG
+if test "x$PKG_CONFIG" != "x"
+then
+       pkg-config --exists 'libxml-2.0' 2>/dev/null
+       if test "$?" = "0"
+       then
+               with_libxml2="yes"
+       else
+               with_libxml2="no (pkg-config doesn't know library)"
+       fi
+
+       pkg-config --exists libvirt 2>/dev/null
+       if test "$?" = "0"
+       then
+               with_libvirt="yes"
+       else
+               with_libvirt="no (pkg-config doesn't know library)"
+       fi
+fi
+if test "x$with_libxml2" = "xyes"
+then
+       with_libxml2_cflags="`pkg-config --cflags libxml-2.0`"
+       if test $? -ne 0
+       then
+               with_libxml2="no"
+       fi
+       with_libxml2_ldflags="`pkg-config --libs libxml-2.0`"
+       if test $? -ne 0
+       then
+               with_libxml2="no"
+       fi
+fi
+if test "x$with_libxml2" = "xyes"
+then
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       CPPFLAGS="$CPPFLAGS $with_libxml2_cflags"
+
+       AC_CHECK_HEADERS(libxml/parser.h, [],
+                     [with_libxml2="no (libxml/parser.h not found)"])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libxml2" = "xyes"
+then
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LD_FLAGS="$LDFLAGS"
+
+       CFLAGS="$CFLAGS $with_libxml2_cflags"
+       LDFLAGS="$LDFLAGS $with_libxml2_ldflags"
+
+       AC_CHECK_LIB(xml2, xmlXPathEval,
+                    [with_libxml2="yes"],
+                    [with_libxml2="no (symbol xmlXPathEval not found)"])
+
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
+fi
+dnl Add the right compiler flags and libraries.
+if test "x$with_libxml2" = "xyes"; then
+       BUILD_WITH_LIBXML2_CFLAGS="$with_libxml2_cflags"
+       BUILD_WITH_LIBXML2_LIBS="$with_libxml2_ldflags"
+       AC_SUBST(BUILD_WITH_LIBXML2_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBXML2_LIBS)
+fi
+if test "x$with_libvirt" = "xyes"
+then
+       with_libvirt_cflags="`pkg-config --cflags libvirt`"
+       if test $? -ne 0
+       then
+               with_libvirt="no"
+       fi
+       with_libvirt_ldflags="`pkg-config --libs libvirt`"
+       if test $? -ne 0
+       then
+               with_libvirt="no"
+       fi
+fi
+if test "x$with_libvirt" = "xyes"
+then
+       SAVE_CPPFLAGS="$CPPFLAGS"
+       CPPFLAGS="$CPPFLAGS $with_libvirt_cflags"
+
+       AC_CHECK_HEADERS(libvirt/libvirt.h, [],
+                     [with_libvirt="no (libvirt/libvirt.h not found)"])
+
+       CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libvirt" = "xyes"
+then
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LD_FLAGS="$LDFLAGS"
+
+       CFLAGS="$CFLAGS $with_libvirt_cflags"
+       LDFLAGS="$LDFLAGS $with_libvirt_ldflags"
+
+       AC_CHECK_LIB(virt, virDomainBlockStats,
+                    [with_libvirt="yes"],
+                    [with_libvirt="no (symbol virDomainBlockStats not found)"])
+
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
+fi
+dnl Add the right compiler flags and libraries.
+if test "x$with_libvirt" = "xyes"; then
+       BUILD_WITH_LIBVIRT_CFLAGS="$with_libvirt_cflags"
+       BUILD_WITH_LIBVIRT_LIBS="$with_libvirt_ldflags"
+       AC_SUBST(BUILD_WITH_LIBVIRT_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBVIRT_LIBS)
+fi
+
+dnl End of check for libvirt and libxml2 libraries.
+
 # Check for enabled/disabled features
 #
 
        ]dnl
 )# AC_COLLECTD(name, enable/disable, info-text, feature/module)
 
+# AC_PLUGIN(name, default, info)
+# ------------------------------------------------------------
+dnl
+AC_DEFUN(
+  [AC_PLUGIN],
+  [
+    enable_plugin="no"
+    AC_ARG_ENABLE([$1], AC_HELP_STRING([--enable-$1], [$3]),
+    [
+     if test "x$enableval" = "xyes"
+     then
+            enable_plugin="yes"
+     else
+            enable_plugin="no"
+     fi
+    ],
+    [
+     if test "x$2" = "xyes"
+     then
+            enable_plugin="yes"
+     else
+            enable_plugin="no"
+     fi
+    ])
+    if test "x$enable_plugin" = "xyes"
+    then
+           AC_DEFINE([HAVE_PLUGIN_]my_toupper([$1]), 1, [Define to 1 if the $1 plugin is enabled.])
+    fi
+    AM_CONDITIONAL([BUILD_PLUGIN_]my_toupper([$1]), test "x$enable_plugin" = "xyes")
+    enable_$1="$enable_plugin"
+  ]
+)# AC_PLUGIN(name, default, info)
+
 m4_divert_once([HELP_ENABLE], [
 collectd features:])
+# FIXME: Remove these calls to `AC_COLLECTD' and then remove that macro.
 AC_COLLECTD([debug],     [enable],  [feature], [debugging])
 AC_COLLECTD([daemon],    [disable], [feature], [daemon mode])
 AC_COLLECTD([getifaddrs],[enable],  [feature], [getifaddrs under Linux])
 
+plugin_battery="no"
+plugin_cpu="no"
+plugin_cpufreq="no"
+plugin_df="no"
+plugin_disk="no"
+plugin_entropy="no"
+plugin_interface="no"
+plugin_ipvs="no"
+plugin_irq="no"
+plugin_libvirt="no"
+plugin_load="no"
+plugin_memory="no"
+plugin_multimeter="no"
+plugin_nfs="no"
+plugin_perl="no"
+plugin_processes="no"
+plugin_serial="no"
+plugin_swap="no"
+plugin_tape="no"
+plugin_tcpconns="no"
+plugin_users="no"
+plugin_vserver="no"
+plugin_wireless="no"
+
+# Linux
+if test "x$ac_system" = "xLinux"
+then
+       plugin_battery="yes"
+       plugin_cpu="yes"
+       plugin_cpufreq="yes"
+       plugin_disk="yes"
+       plugin_entropy="yes"
+       plugin_interface="yes"
+       plugin_irq="yes"
+       plugin_load="yes"
+       plugin_memory="yes"
+       plugin_nfs="yes"
+       plugin_processes="yes"
+       plugin_serial="yes"
+       plugin_swap="yes"
+       plugin_tcpconns="yes"
+       plugin_vserver="yes"
+       plugin_wireless="yes"
+
+       if test "x$have_net_ip_vs_h" = "xyes" -o "x$have_ip_vs_h" = "xyes"
+       then
+               plugin_ipvs="yes"
+       fi
+fi
+
+# Mac OS X devices
+if test "x$with_libiokit" = "xyes"
+then
+       plugin_battery="yes"
+       plugin_disk="yes"
+fi
+
+# Solaris
+if test "x$with_devinfo$with_kstat" = "xyesyes"
+then
+       plugin_cpu="yes"
+       plugin_disk="yes"
+       plugin_interface="yes"
+       plugin_memory="yes"
+       plugin_swap="yes"
+       plugin_tape="yes"
+fi
+
+# libstatgrab
+if test "x$with_libstatgrab" = "xyes"
+then
+       plugin_interface="yes"
+       plugin_load="yes"
+       plugin_memory="yes"
+       plugin_swap="yes"
+fi
+
+if test "x$have_processor_info" = "xyes"
+then
+       plugin_cpu="yes"
+fi
+if test "x$have_sysctlbyname" = "xyes"
+then
+       plugin_cpu="yes"
+       plugin_memory="yes"
+       plugin_tcpconns="yes"
+fi
+
+if test "x$have_statfs" = "xyes"
+then
+       plugin_df="yes"
+fi
+if test "x$have_statvfs" = "xyes"
+then
+       plugin_df="yes"
+fi
+
+if test "x$have_getifaddrs" = "xyes"
+then
+       plugin_interface="yes"
+fi
+
+if test "x$with_libxml2" = "xyes" && test "x$with_libvirt" = "xyes"
+then
+       plugin_libvirt="yes"
+fi
+
+if test "x$have_getloadavg" = "xyes"
+then
+       plugin_load="yes"
+fi
+
+if test "x$have_libperl$have_perl_ithreads" = "xyesyes"
+then
+       plugin_perl="yes"
+fi
+
+# Mac OS X memory interface
+if test "x$have_host_statistics" = "xyes"
+then
+       plugin_memory="yes"
+fi
+
+if test "x$have_termios_h" = "xyes"
+then
+       plugin_multimeter="yes"
+fi
+
+if test "x$have_thread_info" = "xyes"
+then
+       plugin_processes="yes"
+fi
+
+if test "x$with_libkvm" = "xyes"
+then
+       plugin_swap="yes"
+fi
+
+if test "x$have_getutent" = "xyes"
+then
+       plugin_users="yes"
+fi
+if test "x$have_getutxent" = "xyes"
+then
+       plugin_users="yes"
+fi
+
+# FIXME: sysctl for swap plugin
+
 m4_divert_once([HELP_ENABLE], [
-collectd modules:])
-AC_COLLECTD([apache],    [disable], [module], [Apache httpd statistics])
-AC_COLLECTD([apcups],    [disable], [module], [Statistics of UPSes by APC])
-AC_COLLECTD([apple_sensors], [disable], [module], [Apple's hardware sensors])
-AC_COLLECTD([battery],   [disable], [module], [battery statistics])
-AC_COLLECTD([cpu],       [disable], [module], [cpu usage statistics])
-AC_COLLECTD([cpufreq],   [disable], [module], [system cpu frequency statistics])
-AC_COLLECTD([disk],      [disable], [module], [disk/partition statistics])
-AC_COLLECTD([csv],       [disable], [module], [csv output plugin])
-AC_COLLECTD([df],        [disable], [module], [df statistics])
-AC_COLLECTD([dns],       [disable], [module], [dns statistics])
-AC_COLLECTD([email],     [disable], [module], [email statistics])
-AC_COLLECTD([entropy],   [disable], [module], [entropy statistics])
-AC_COLLECTD([exec],      [disable], [module], [exec of external programs])
-AC_COLLECTD([hddtemp],   [disable], [module], [hdd temperature statistics])
-AC_COLLECTD([interface], [disable], [module], [interface statistics])
-AC_COLLECTD([iptables],  [disable], [module], [IPtables statistics])
-AC_COLLECTD([irq],       [disable], [module], [irq statistics])
-AC_COLLECTD([load],      [disable], [module], [system load statistics])
-AC_COLLECTD([mbmon],     [disable], [module], [motherboard monitor statistics])
-AC_COLLECTD([memory],    [disable], [module], [memory statistics])
-AC_COLLECTD([multimeter],[disable], [module], [multimeter statistics])
-AC_COLLECTD([mysql],     [disable], [module], [mysql statistics])
-AC_COLLECTD([network],   [disable], [module], [network functionality])
-AC_COLLECTD([nfs],       [disable], [module], [nfs statistics])
-AC_COLLECTD([ntpd],      [disable], [module], [ntpd statistics])
-AC_COLLECTD([nut],       [disable], [module], [network UPS tools statistics])
-AC_COLLECTD([perl],      [disable], [module], [embedded perl interpreter])
-AC_COLLECTD([ping],      [disable], [module], [ping statistics])
-AC_COLLECTD([processes], [disable], [module], [processes statistics])
-AC_COLLECTD([sensors],   [disable], [module], [lm_sensors statistics])
-AC_COLLECTD([serial],    [disable], [module], [serial statistics])
-AC_COLLECTD([logfile],   [disable], [module], [logfile log facility])
-AC_COLLECTD([swap],      [disable], [module], [swap statistics])
-AC_COLLECTD([syslog],    [disable], [module], [syslog log facility])
-AC_COLLECTD([tape],      [disable], [module], [tape statistics])
-AC_COLLECTD([unixsock],  [disable], [module], [UNIX socket plugin])
-AC_COLLECTD([users],     [disable], [module], [user count statistics])
-AC_COLLECTD([vserver],   [disable], [module], [vserver statistics])
-AC_COLLECTD([wireless],  [disable], [module], [wireless link statistics])
-
-AC_OUTPUT(Makefile src/Makefile src/collectd.conf src/liboconfig/Makefile src/liboping/Makefile)
+collectd plugins:])
+
+AC_PLUGIN([apache],      [$with_libcurl],      [Apache httpd statistics])
+AC_PLUGIN([apcups],      [yes],                [Statistics of UPSes by APC])
+AC_PLUGIN([apple_sensors], [$with_libiokit],   [Apple's hardware sensors])
+AC_PLUGIN([battery],     [$plugin_battery],    [Battery statistics])
+AC_PLUGIN([cpu],         [$plugin_cpu],        [CPU usage statistics])
+AC_PLUGIN([cpufreq],     [$plugin_cpufreq],    [CPU frequency statistics])
+AC_PLUGIN([csv],         [yes],                [CSV output plugin])
+AC_PLUGIN([df],          [$plugin_df],         [Filesystem usage statistics])
+AC_PLUGIN([disk],        [$plugin_disk],       [Disk usage statistics])
+AC_PLUGIN([dns],         [$with_libpcap],      [DNS traffic analysis])
+AC_PLUGIN([email],       [yes],                [EMail statistics])
+AC_PLUGIN([entropy],     [$plugin_entropy],    [Entropy statistics])
+AC_PLUGIN([exec],        [yes],                [Execution of external programs])
+AC_PLUGIN([hddtemp],     [yes],                [Query hddtempd])
+AC_PLUGIN([interface],   [$plugin_interface],  [Interface traffic statistics])
+AC_PLUGIN([iptables],    [$with_libiptc],      [IPTables rule counters])
+AC_PLUGIN([ipvs],        [$plugin_ipvs],       [IPVS connection statistics])
+AC_PLUGIN([irq],         [$plugin_irq],        [IRQ statistics])
+AC_PLUGIN([libvirt],     [$plugin_libvirt],    [Virtual machine statistics])
+AC_PLUGIN([load],        [$plugin_load],       [System load])
+AC_PLUGIN([logfile],     [yes],                [File logging plugin])
+AC_PLUGIN([mbmon],       [yes],                [Query mbmond])
+AC_PLUGIN([memcached],   [yes],                [memcached statistics])
+AC_PLUGIN([memory],      [$plugin_memory],     [Memory usage])
+AC_PLUGIN([multimeter],  [$plugin_multimeter], [Read multimeter values])
+AC_PLUGIN([mysql],       [$with_libmysql],     [MySQL statistics])
+AC_PLUGIN([netlink],     [$with_libnetlink],   [Enhanced Linux network statistics])
+AC_PLUGIN([network],     [yes],                [Network communication plugin])
+AC_PLUGIN([nfs],         [$plugin_nfs],        [NFS statistics])
+AC_PLUGIN([nginx],       [$with_libcurl],      [nginx statistics])
+AC_PLUGIN([ntpd],        [yes],                [NTPd statistics])
+AC_PLUGIN([nut],         [$with_libupsclient], [Network UPS tools statistics])
+AC_PLUGIN([perl],        [$plugin_perl],       [Embed a Perl interpreter])
+AC_PLUGIN([ping],        [$with_liboping],     [Network latency statistics])
+AC_PLUGIN([processes],   [$plugin_processes],  [Process statistics])
+AC_PLUGIN([rrdtool],     [$with_rrdtool],      [RRDTool output plugin])
+AC_PLUGIN([sensors],     [$with_lm_sensors],   [lm_sensors statistics])
+AC_PLUGIN([serial],      [$plugin_serial],     [serial port traffic])
+AC_PLUGIN([snmp],        [$with_libnetsnmp],   [SNMP querying plugin])
+AC_PLUGIN([swap],        [$plugin_swap],       [Swap usage statistics])
+AC_PLUGIN([syslog],      [$have_syslog],       [Syslog logging plugin])
+AC_PLUGIN([tape],        [$plugin_tape],       [Tape drive statistics])
+AC_PLUGIN([tcpconns],    [$plugin_tcpconns],   [TCP connection statistics])
+AC_PLUGIN([unixsock],    [yes],                [Unixsock communication plugin])
+AC_PLUGIN([users],       [$plugin_users],      [User statistics])
+AC_PLUGIN([uuid],        [yes],                [UUID as hostname plugin])
+AC_PLUGIN([vserver],     [$plugin_vserver],    [Linux VServer statistics])
+AC_PLUGIN([wireless],    [$plugin_wireless],   [Wireless statistics])
+AC_PLUGIN([xmms],        [$with_libxmms],      [XMMS statistics])
+
+dnl ip_vs.h
+if test "x$ac_system" = "xLinux" -a "x$have_net_ip_vs_h$have_ip_vs_h" = "xnono"
+then
+       enable_ipvs="$enable_ipvs (ip_vs.h not found)"
+fi
+
+dnl Perl bindings
+AC_ARG_WITH(perl-bindings, [AS_HELP_STRING([--with-perl-bindings@<:@=OPTIONS@:>@], [Options passed to "perl Makefile.PL".])],
+[
+       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       then
+               PERL_BINDINGS_OPTIONS="$withval"
+               with_perl_bindings="yes"
+       else
+               PERL_BINDINGS_OPTIONS=""
+               with_perl_bindings="$withval"
+       fi
+],
+[
+       PERL_BINDINGS_OPTIONS=""
+       with_perl_bindings="yes"
+])
+if test "x$with_perl_bindings" = "xyes"
+then
+       PERL_BINDINGS="perl"
+else
+       PERL_BINDINGS=""
+fi
+AC_SUBST(PERL_BINDINGS)
+AC_SUBST(PERL_BINDINGS_OPTIONS)
+
+AC_OUTPUT(Makefile src/Makefile src/collectd.conf src/liboconfig/Makefile src/liboping/Makefile bindings/Makefile)
+
+if test "x$with_rrdtool" = "xyes" -a "x$librrd_threadsafe" != "xyes"
+then
+       with_rrdtool="yes (warning: librrd is not thread-safe)"
+fi
+
+if test "x$with_liboping" = "xyes" -a "x$with_own_liboping" = "xyes"
+then
+       with_liboping="yes (shipped version)"
+fi
 
 if test "x$with_libperl" = "xyes"
 then
-       with_libperl="yes (version `perl -MConfig -e 'print $Config{version};'`)"
+       with_libperl="yes (version `$perl_interpreter -MConfig -e 'print $Config{version};'`)"
 else
        enable_perl="no (needs libperl)"
 fi
 
+if test "x$with_perl_bindings" = "xyes" -a "x$PERL_BINDINGS_OPTIONS" != "x"
+then
+       with_perl_bindings="yes ($PERL_BINDINGS_OPTIONS)"
+fi
+
 cat <<EOF;
 
 Configuration:
@@ -1480,7 +2147,10 @@ Configuration:
     libiokit  . . . . . $with_libiokit
     libiptc . . . . . . $with_libiptc
     libkstat  . . . . . $with_kstat
+    libkvm  . . . . . . $with_libkvm
     libmysql  . . . . . $with_libmysql
+    libnetlink  . . . . $with_libnetlink
+    libnetsnmp  . . . . $with_libnetsnmp
     liboconfig  . . . . $with_liboconfig
     liboping  . . . . . $with_liboping
     libpcap . . . . . . $with_libpcap
@@ -1490,11 +2160,17 @@ Configuration:
     libsensors  . . . . $with_lm_sensors
     libstatgrab . . . . $with_libstatgrab
     libupsclient  . . . $with_libupsclient
+    libvirt . . . . . . $with_libvirt
+    libxml2 . . . . . . $with_libxml2
+    libxmms . . . . . . $with_libxmms
 
   Features:
     daemon mode . . . . $enable_daemon
     debug . . . . . . . $enable_debug
 
+  Bindings:
+    perl  . . . . . . . $with_perl_bindings
+
   Modules:
     apache  . . . . . . $enable_apache
     apcups  . . . . . . $enable_apcups
@@ -1512,28 +2188,38 @@ Configuration:
     hddtemp . . . . . . $enable_hddtemp
     interface . . . . . $enable_interface
     iptables  . . . . . $enable_iptables
+    ipvs  . . . . . . . $enable_ipvs
     irq . . . . . . . . $enable_irq
+    libvirt . . . . . . $enable_libvirt
     load  . . . . . . . $enable_load
     logfile . . . . . . $enable_logfile
     mbmon . . . . . . . $enable_mbmon
+    memcached . . . . . $enable_memcached
     memory  . . . . . . $enable_memory
     multimeter  . . . . $enable_multimeter
     mysql . . . . . . . $enable_mysql
+    netlink . . . . . . $enable_netlink
     network . . . . . . $enable_network
     nfs . . . . . . . . $enable_nfs
+    nginx . . . . . . . $enable_nginx
     ntpd  . . . . . . . $enable_ntpd
     nut . . . . . . . . $enable_nut
     perl  . . . . . . . $enable_perl
     ping  . . . . . . . $enable_ping
     processes . . . . . $enable_processes
+    rrdtool . . . . . . $enable_rrdtool
     sensors . . . . . . $enable_sensors
     serial  . . . . . . $enable_serial
+    snmp  . . . . . . . $enable_snmp
     swap  . . . . . . . $enable_swap
     syslog  . . . . . . $enable_syslog
     tape  . . . . . . . $enable_tape
+    tcpconns  . . . . . $enable_tcpconns
     unixsock  . . . . . $enable_unixsock
     users . . . . . . . $enable_users
+    uuid  . . . . . . . $enable_uuid
     vserver . . . . . . $enable_vserver
     wireless  . . . . . $enable_wireless
+    xmms  . . . . . . . $enable_xmms
 
 EOF