Code

Merge branch 'ff/nginx'
[collectd.git] / configure.in
index ce8698bdd67747869f070c232090aa448c97c88e..48b4e62ceacb56abf7f177643699003a0a01dbb8 100644 (file)
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(collectd, 3.11.7)
+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)
@@ -26,31 +26,36 @@ AC_SUBST(LTDLINCL)
 AC_SUBST(LIBLTDL)
 AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
-#AC_PROG_RANLIB
+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(sys/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(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, [], [],
@@ -151,6 +156,23 @@ AC_CHECK_HEADERS(netinet/icmp6.h, [], [],
 # include <netinet/ip6.h>
 #endif
 ])
+AC_CHECK_HEADERS(netinet/tcp.h, [], [],
+[#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_NETINET_IN_SYSTM_H
+# include <netinet/in_systm.h>
+#endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#if HAVE_NETINET_IP_H
+# include <netinet/ip.h>
+#endif
+])
 AC_CHECK_HEADERS(netinet/udp.h, [], [],
 [#if HAVE_STDINT_H
 # include <stdint.h>
@@ -170,32 +192,24 @@ AC_CHECK_HEADERS(netinet/udp.h, [], [],
 ])
 
 # For cpu modules
-AC_CHECK_HEADERS(sys/sysctl.h 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)
+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
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+])
 
 # For hddtemp module
-AC_CHECK_HEADERS(linux/major.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, [], [],
@@ -207,26 +221,24 @@ 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 the swap module
+AC_CHECK_HEADERS(sys/swap.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+])
 
 # 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)
-
 # 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 traffic plugin
+# For interface plugin
 AC_CHECK_HEADERS(ifaddrs.h)
 AC_CHECK_HEADERS(net/if.h, [], [],
 [
@@ -259,34 +271,36 @@ 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(grp.h pwd.h sys/ucred.h)
-AC_CHECK_HEADERS(ctype.h)
-AC_CHECK_HEADERS(limits.h)
-AC_CHECK_HEADERS(sys/quota.h)
-AC_CHECK_HEADERS(xfs/xqm.h)
+AC_CHECK_HEADERS(sys/ucred.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+])
 
 # 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)
-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)
+AC_CHECK_HEADERS(sys/mount.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+])
 
 # For the email plugin
 AC_CHECK_HEADERS(linux/un.h, [], [],
@@ -295,24 +309,29 @@ 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 arpa/nameser_compat.h)
+AC_CHECK_HEADERS(arpa/nameser.h)
+AC_CHECK_HEADERS(arpa/nameser_compat.h, [], [],
+[
+#if HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#endif
+])
 
 AC_CHECK_HEADERS(net/if_arp.h, [], [],
 [#if HAVE_SYS_SOCKET_H
 # include <sys/socket.h>
 #endif
 ])
-AC_CHECK_HEADERS(net/if_ppp.h)
+AC_CHECK_HEADERS(net/ppp_defs.h)
+AC_CHECK_HEADERS(net/if_ppp.h, [], [],
+[#if HAVE_NET_PPP_DEFS_H
+# include <net/ppp_defs.h>
+#endif
+])
 AC_CHECK_HEADERS(netinet/if_ether.h, [], [],
 [#if HAVE_STDINT_H
 # include <stdint.h>
@@ -331,7 +350,13 @@ AC_CHECK_HEADERS(netinet/if_ether.h, [], [],
 #endif
 ])
 
-dnl Checking for libraries
+# For the multimeter plugin
+have_termios_h="no"
+AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])
+
+#
+# Checking for libraries
+#
 AC_CHECK_LIB(m, ext)
 
 #
@@ -347,11 +372,12 @@ 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
+
+AC_CHECK_FUNCS(getpwnam_r)
+AC_CHECK_FUNCS(getgrnam_r)
 
 socket_needs_socket="no"
 AC_CHECK_FUNCS(socket, [], AC_CHECK_LIB(socket, socket, [socket_needs_socket="yes"], AC_MSG_ERROR(cannot find socket)))
@@ -361,30 +387,130 @@ 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 quota module
-AC_CHECK_FUNCS(quotactl)
-AC_CHECK_FUNCS(getgrgid getpwuid)
+# Check for NAN
+AC_ARG_WITH(nan-emulation, [AS_HELP_STRING([--with-nan-emulation], [use emulated NAN. For crosscompiling only.])],
+[
+ if test "x$withval" = "xno"; then
+        nan_type="none"
+ else if test "x$withval" = "xyes"; then
+        nan_type="zero"
+ else
+        nan_type="$withval"
+ fi; fi
+],
+[nan_type="none"])
+if test "x$nan_type" = "xnone"; then
+  AC_CACHE_CHECK([whether NAN is defined by default],
+    [have_nan_default],
+    AC_COMPILE_IFELSE(
+      AC_LANG_PROGRAM(
+      [[
+#include <stdlib.h>
+#include <math.h>
+static float foo = NAN;
+      ]],
+      [[
+       if (isnan (foo))
+        return 0;
+       else
+       return 1;
+      ]]),
+      [have_nan_default="yes"],
+      [have_nan_default="no"]
+    )
+  )
+  if test "x$have_nan_default" = "xyes"
+  then
+    nan_type="default"
+  fi
+fi
+if test "x$nan_type" = "xnone"; then
+  AC_CACHE_CHECK([whether NAN is defined by __USE_ISOC99],
+    [have_nan_isoc],
+    AC_COMPILE_IFELSE(
+      AC_LANG_PROGRAM(
+      [[
+#include <stdlib.h>
+#define __USE_ISOC99 1
+#include <math.h>
+static float foo = NAN;
+      ]],
+      [[
+       if (isnan (foo))
+        return 0;
+       else
+       return 1;
+      ]]),
+      [have_nan_isoc="yes"],
+      [have_nan_isoc="no"]
+    )
+  )
+  if test "x$have_nan_isoc" = "xyes"
+  then
+    nan_type="isoc99"
+  fi
+fi
+if test "x$nan_type" = "xnone"; then
+  AC_CACHE_CHECK([whether NAN can be defined by 0/0],
+    [have_nan_zero],
+    AC_RUN_IFELSE(
+      AC_LANG_PROGRAM(
+      [[
+#include <stdlib.h>
+#include <math.h>
+#ifdef NAN
+# undef NAN
+#endif
+#define NAN (0.0 / 0.0)
+#ifndef isnan
+# define isnan(f) ((f) != (f))
+#endif
+static float foo = NAN;
+      ]],
+      [[
+       if (isnan (foo))
+        return 0;
+       else
+       return 1;
+      ]]),
+      [have_nan_zero="yes"],
+      [have_nan_zero="no"]
+    )
+  )
+  if test "x$have_nan_zero" = "xyes"
+  then
+    nan_type="zero"
+  fi
+fi
 
-# For traffic module
-AC_CHECK_FUNCS(getifaddrs)
+if test "x$nan_type" = "xdefault"; then
+  AC_DEFINE(NAN_STATIC_DEFAULT, 1,
+    [Define if NAN is defined by default and can initialize static variables.])
+else if test "x$nan_type" = "xisoc99"; then
+  AC_DEFINE(NAN_STATIC_ISOC, 1,
+    [Define if NAN is defined by __USE_ISOC99 and can initialize static variables.])
+else if test "x$nan_type" = "xzero"; then
+  AC_DEFINE(NAN_ZERO_ZERO, 1,
+    [Define if NAN can be defined as (0.0 / 0.0)])
+else
+  AC_MSG_ERROR([Didn't find out how to statically initialize variables to NAN. Sorry.])
+fi; fi; fi
 
 # For mount interface
 #AC_CHECK_FUNCS(getfsent getvfsent)
@@ -531,20 +657,14 @@ AC_CHECK_MEMBERS([struct udphdr.dest, struct udphdr.source], [], [],
 #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])
+AC_CHECK_MEMBERS([kstat_io_t.nwritten, kstat_io_t.writes, kstat_io_t.nwrites, kstat_io_t.wtime],
+       [],
+       [],
+       [
+#if HAVE_KSTAT_H
+# include <kstat.h>
+#endif
+       ])
 
 with_libresolv="yes"
 AC_CHECK_LIB(resolv, res_search,
@@ -559,35 +679,57 @@ 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"
        fi
 ], [with_rrdtool="yes"])
 if test "x$with_rrdtool" = "xyes"
 then
-       AC_CHECK_LIB(rrd, rrd_update,
-       [
-               AC_DEFINE(HAVE_LIBRRD, 1, [Define to 1 if you have the rrd library (-lrrd).])
-       ],
-       [with_rrdtool="no (librrd not found)"], [-lm])
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
+
+       CFLAGS="$CFLAGS $librrd_cflags"
+       LDFLAGS="$LDFLAGS $librrd_ldflags"
+
+       AC_CHECK_HEADERS(rrd.h,, [with_rrdtool="no (rrd.h not found)"])
+
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 if test "x$with_rrdtool" = "xyes"
 then
-       AC_CHECK_HEADERS(rrd.h,, [with_rrdtool="no (rrd.h not found)"])
+       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])
 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"
@@ -620,7 +762,7 @@ 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"
@@ -648,70 +790,71 @@ AM_CONDITIONAL(BUILD_WITH_LIBDEVINFO, test "x$with_devinfo" = "xyes")
 
 ### BEGIN of check for libcurl ###
 with_curl_config="curl-config"
-with_curl_prefix=0
+with_curl_cflags=""
 with_curl_libs=""
 AC_ARG_WITH(libcurl, [AS_HELP_STRING([--with-libcurl@<:@=PREFIX@:>@], [Path to libcurl.])],
 [
-       if test "x$withval" != "xno" -a "x$withval" != "xyes"
-       then
-               if test -x "$withval/bin/curl-config"
-               then
-                       with_curl_config="$withval/bin/curl-config"
-                       with_curl_prefix=1
-               fi
-       fi
        if test "x$withval" = "xno"
        then
                with_libcurl="no"
+       else if test "x$withval" = "xyes"
+       then
+               with_libcurl="yes"
        else
+               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="$withval/bin/curl-config"
+                       with_libcurl="yes"
+               fi; fi
                with_libcurl="yes"
-       fi
+       fi; fi
 ],
 [
        with_libcurl="yes"
 ])
 if test "x$with_libcurl" = "xyes"
 then
-       with_curl_libs=`$with_curl_config --libs 2>/dev/null`
+       with_curl_cflags=`$with_curl_config --cflags 2>/dev/null`
        curl_config_status=$?
 
        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,
-               [
-                       BUILD_WITH_LIBCURL_LIBS="$with_curl_libs"
-                       AC_SUBST(BUILD_WITH_LIBCURL_LIBS)
-               ],
-               [
-                       with_libcurl="no"
-               ],
-               [$with_curl_libs])
+               SAVE_CFLAGS=$CFLAGS
+               CFLAGS="$CFLAGS $with_curl_cflags"
+
+               AC_CHECK_HEADERS(curl/curl.h, [], [with_libcurl="no (curl/curl.h not found)"], [])
+
+               CFLAGS="$SAVE_CFLAGS"
        fi
 fi
-if test "x$with_libcurl" = "xyes" -a $with_curl_prefix -ne 0
+if test "x$with_libcurl" = "xyes"
 then
-       with_curl_prefix=`$with_curl_config --libs 2>/dev/null`
+       with_curl_libs=`$with_curl_config --libs 2>/dev/null`
        curl_config_status=$?
 
        if test $curl_config_status -ne 0
        then
-               with_libcurl="no"
+               with_libcurl="no ($with_curl_config failed)"
        else
-               if test -d "$with_curl_prefix/include"
-               then
-                       CPPFLAGS="$CPPFLAGS -I$with_curl_prefix/include"
-               fi
+               AC_CHECK_LIB(curl, curl_easy_init,
+                [with_libcurl="yes"],
+                [with_libcurl="no (symbol 'curl_easy_init' not found)"],
+                [$with_curl_libs])
        fi
 fi
-
-with_libcurl_numeric=0
 if test "x$with_libcurl" = "xyes"
 then
-       with_libcurl_numeric=1
+       BUILD_WITH_LIBCURL_CFLAGS="$with_curl_cflags"
+       BUILD_WITH_LIBCURL_LIBS="$with_curl_libs"
+       AC_SUBST(BUILD_WITH_LIBCURL_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBCURL_LIBS)
 fi
-AC_DEFINE_UNQUOTED(HAVE_LIBCURL, [$with_libcurl_numeric], [Define to 1 if you have the 'curl' library (-lcurl).])
 AM_CONDITIONAL(BUILD_WITH_LIBCURL, test "x$with_libcurl" = "xyes")
 ### END of check for libcurl ###
 
@@ -792,7 +935,7 @@ 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$with_lm_sensors" = "xyes"
@@ -821,42 +964,119 @@ AC_DEFINE_UNQUOTED(COLLECT_LM_SENSORS, [$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"
+with_mysql_cflags=""
+with_mysql_libs=""
 AC_ARG_WITH(libmysql, [AS_HELP_STRING([--with-libmysql@<:@=PREFIX@:>@], [Path to libmysql.])],
 [
-       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       if test "x$withval" = "xno"
+       then
+               with_libmysql="no"
+       else if test "x$withval" = "xyes"
        then
-               LDFLAGS="$LDFLAGS -L$withval/lib"
-               CPPFLAGS="$CPPFLAGS -I$withval/include"
                with_libmysql="yes"
-       fi
+       else
+               if test -f "$withval" && test -x "$withval";
+               then
+                       with_mysql_config="$withval"
+               else if test -x "$withval/bin/mysql_config"
+               then
+                       with_mysql_config="$withval/bin/mysql_config"
+               fi; fi
+               with_libmysql="yes"
+       fi; fi
 ],
 [
        with_libmysql="yes"
 ])
 if test "x$with_libmysql" = "xyes"
 then
-       AC_CHECK_LIB(mysqlclient, mysql_init,
-       [
-               AC_DEFINE(HAVE_LIBMYSQLCLIENT, 1, [Define to 1 if you have the mysqlclient library (-lmysqlclient).])
-       ], [with_libmysql="no (libmysql not found)"])
+       with_mysql_cflags=`$with_mysql_config --cflags 2>/dev/null`
+       mysql_config_status=$?
+
+       if test $mysql_config_status -ne 0
+       then
+               with_libmysql="no"
+       else
+               SAVE_CFLAGS=$CFLAGS
+               CFLAGS="$CFLAGS $with_mysql_cflags"
+
+               AC_CHECK_HEADERS(mysql/mysql.h, [], [with_libmysql="no (mysql/mysql.h not found)"], [])
+
+               CFLAGS="$SAVE_CFLAGS"
+       fi
 fi
 if test "x$with_libmysql" = "xyes"
 then
-       AC_CHECK_HEADERS(mysql/mysql.h,
-       [
-               AC_DEFINE(HAVE_MYSQL_MYSQL_H, 1, [Define to 1 if you have the <mysql/mysql.h> header file.])
-       ], [with_libmysql="no (mysql/mysql.h not found)"])
+       with_mysql_libs=`$with_mysql_config --libs 2>/dev/null`
+       mysql_config_status=$?
+
+       if test $mysql_config_status -ne 0
+       then
+               with_libmysql="no"
+       else
+               AC_CHECK_LIB(mysqlclient, mysql_init,
+                [with_libmysql="yes"],
+                [with_libmysql="no (symbol 'mysql_init' not found)"],
+                [$with_mysql_libs])
+       fi
 fi
 if test "x$with_libmysql" = "xyes"
 then
-       collect_libmysql=1
-else
-       collect_libmysql=0
+       BUILD_WITH_LIBMYSQL_CFLAGS="$with_mysql_cflags"
+       BUILD_WITH_LIBMYSQL_LIBS="$with_mysql_libs"
+       AC_SUBST(BUILD_WITH_LIBMYSQL_CFLAGS)
+       AC_SUBST(BUILD_WITH_LIBMYSQL_LIBS)
 fi
-AC_DEFINE_UNQUOTED(COLLECT_LIBMYSQL, [$collect_libmysql],
-       [Wether or not to use mysql library])
 AM_CONDITIONAL(BUILD_WITH_LIBMYSQL, test "x$with_libmysql" = "xyes")
 
+with_own_liboconfig="no"
+liboconfig_LDFLAGS="$LDFLAGS"
+liboconfig_CPPFLAGS="$CPPFLAGS"
+AC_ARG_WITH(liboconfig, [AS_HELP_STRING([--with-liboconfig@<:@=PREFIX@:>@], [Path to liboconfig.])],
+[
+       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       then
+               if test -d "$withval/lib"
+               then
+                       liboconfig_LDFLAGS="$LDFLAGS -L$withval/lib"
+               fi
+               if test -d "$withval/include"
+               then
+                       liboconfig_CPPFLAGS="$CPPFLAGS -I$withval/include"
+               fi
+       fi
+       if test "x$withval" = "xno"
+       then
+               AC_MSG_ERROR("liboconfig is required")
+       fi
+],
+[
+       with_liboconfig="yes"
+])
+
+save_LDFLAGS="$LDFLAGS"
+save_CPPFLAGS="$CPPFLAGS"
+LDFLAGS="$liboconfig_LDFLAGS"
+CPPFLAGS="$liboconfig_CPPFLAGS"
+AC_CHECK_LIB(oconfig, oconfig_parse_fh,
+[
+       with_liboconfig="yes"
+       with_own_liboconfig="no"
+],
+[
+       with_liboconfig="yes"
+       with_own_liboconfig="yes"
+       LDFLAGS="$save_LDFLAGS"
+       CPPFLAGS="$save_CPPFLAGS"
+])
+
+AM_CONDITIONAL(BUILD_WITH_OWN_LIBOCONFIG, test "x$with_own_liboconfig" = "xyes")
+if test "x$with_own_liboconfig" = "xyes"
+then
+       with_liboconfig="yes (shipped version)"
+fi
+
 #with_liboping="yes"
 with_own_liboping="no"
 liboping_LDFLAGS="$LDFLAGS"
@@ -905,10 +1125,6 @@ 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.])],
 [
@@ -946,41 +1162,416 @@ AC_DEFINE_UNQUOTED(COLLECT_LIBPCAP, [$collect_libpcap],
        [Wether or not to use the pcap library])
 AM_CONDITIONAL(BUILD_WITH_LIBPCAP, test "x$with_libpcap" = "xyes")
 
-# Define `step' and `hearbeat' values..
-declare -i collectd_step=10
-declare -i collectd_heartbeat=25
-AC_ARG_WITH(step, [AS_HELP_STRING([--with-step=SECONDS], [Interval in which plugins are queried.])],
+perl_interpreter="perl"
+AC_ARG_WITH(libperl, [AS_HELP_STRING([--with-libperl@<:@=PREFIX@:>@], [Path to libperl.])],
 [
-       if test "x$withval" != "xno" -a "x$withval" != "xyes"
+       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       then
+               LDFLAGS="$LDFLAGS -L$withval/lib"
+               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               perl_interpreter="$withval/bin/perl"
+               with_libperl="yes"
+       fi
+],
+[
+       with_libperl="yes"
+])
+
+AC_SUBST(PERL, "$perl_interpreter")
+
+if test "x$with_libperl" = "xyes"
+then
+  SAVE_CFLAGS=$CFLAGS
+  SAVE_LDFLAGS=$LDFLAGS
+  PERL_CFLAGS=`$perl_interpreter -MExtUtils::Embed -e ccopts`
+  PERL_LDFLAGS=`$perl_interpreter -MExtUtils::Embed -e ldopts`
+  CFLAGS="$CFLAGS $PERL_CFLAGS"
+  LDFLAGS="$LDFLAGS $PERL_LDFLAGS"
+
+  AC_CACHE_CHECK([for libperl],
+    [have_libperl],
+    AC_LINK_IFELSE(
+      AC_LANG_PROGRAM(
+      [[
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+      ]],
+      [[
+       PerlInterpreter *perl = NULL;
+       Perl_load_module (perl, PERL_LOADMOD_NOIMPORT,
+                        newSVpv ("Collectd::Plugin::FooBar", 24),
+                        Nullsv);
+      ]]),
+      [have_libperl="yes"],
+      [have_libperl="no"]
+    )
+  )
+
+  if test "x$have_libperl" = "xyes"
+  then
+         AC_DEFINE(HAVE_LIBPERL, 1, [Define if libperl is present and usable.])
+         AC_SUBST(PERL_CFLAGS)
+         AC_SUBST(PERL_LDFLAGS)
+  else
+         with_libperl="no"
+  fi
+
+  CFLAGS=$SAVE_CFLAGS
+  LDFLAGS=$SAVE_LDFLAGS
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBPERL, test "x$with_libperl" = "xyes")
+
+AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
+[
+       if test "x$withval" != "xno" && test "x$withval" != "xyes"
+       then
+               LDFLAGS="$LDFLAGS -L$withval/lib"
+               CPPFLAGS="$CPPFLAGS -I$withval/include"
+               with_libiptc="yes"
+       fi
+],
+[
+       if test "x$ac_system" = "xLinux"
        then
-               declare -i tmp_collectd_step="$withval"
-               if test $tmp_collectd_step -gt 0
+               with_libiptc="yes"
+       else
+               with_libiptc="no (Linux only)"
+       fi
+])
+if test "x$with_libiptc" = "xyes"
+then
+       AC_CHECK_LIB(iptc, iptc_init,
+       [
+               AC_DEFINE(HAVE_LIBIPTC, 1, [Define to 1 if you have the iptc library (-liptc).])
+       ], [with_libiptc="no (libiptc not found)"])
+fi
+if test "x$with_libiptc" = "xyes"
+then
+       AC_CHECK_HEADERS(libiptc/libiptc.h,
+       [
+               AC_DEFINE(HAVE_LIBIPTC_LIBIPTC_H, 1, [Define to 1 if you have the <libiptc/libiptc.h> header file.])
+       ], [with_libiptc="no (libiptc/libiptc.h not found)"])
+fi
+if test "x$with_libiptc" = "xyes"
+then
+       collect_libiptc=1
+else
+       collect_libiptc=0
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
+
+with_snmp_config="net-snmp-config"
+with_snmp_cflags=""
+with_snmp_libs=""
+AC_ARG_WITH(libnetsnmp, [AS_HELP_STRING([--with-libnetsnmp@<:@=PREFIX@:>@], [Path to the Net-SNMPD library.])],
+[
+       if test "x$withval" = "xno"
+       then
+               with_libnetsnmp="no"
+       else if "x$withval" = "xyes"
+       then
+               with_libnetsnmp="yes"
+       else
+               if test -x "$withval"
                then
-                       collectd_step=$tmp_collectd_step
-                       let "collectd_heartbeat=$collectd_step*2"
+                       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)"],
+               [$with_snmp_libs])
        fi
-], [])
-AC_ARG_WITH(heartbeat, [AS_HELP_STRING([--with-heartbeat=SECONDS], [Heartbeat of the DS in generated RRD files.])],
+fi
+if test "x$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" -a "x$withval" != "xyes"
+       if test "x$withval" = "xno"
        then
-               declare -i tmp_collectd_heartbeat="$withval"
-               if test $tmp_collectd_heartbeat -gt 0
+               with_libupsclient="no"
+       else
+               if test "x$withval" != "xyes"
                then
-                       collectd_heartbeat=$tmp_collectd_heartbeat
+                       if test -f "$withval" && test -x "$withval";
+                       then
+                               with_upsclient_config="$withval"
+                       else
+                               with_upsclient_config="$withval/bin/libupsclient-config"
+                       fi
                fi
+               with_libupsclient="yes"
+       fi
+],
+[
+       with_libupsclient="yes"
+])
+if test "x$with_libupsclient" = "xyes"
+then
+       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$with_libupsclient" = "xyes"
+then
+       AC_CHECK_LIB(upsclient, upscli_connect,
+       [
+               BUILD_WITH_LIBUPSCLIENT_CFLAGS="$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$with_libupsclient" = "xyes"
+then
+       AC_CHECK_TYPES([UPSCONN_t, UPSCONN], [], [], 
+[#include <stdlib.h>
+#include <stdio.h>
+#include <upsclient.h>])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBUPSCLIENT, test "x$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 ###
 
-if test $collectd_step -ne 10
+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$with_libnetlink" = "xyes"
 then
-       AC_DEFINE_UNQUOTED(COLLECTD_STEP, "$collectd_step", [Interval in which plugins are queried.])
+       AC_CHECK_LIB(netlink, rtnl_open,
+                    [with_libnetlink="yes"],
+                    [with_libnetlink="no (symbol 'rtnl_open' not found)"],
+                    [$with_libnetlink_libs])
 fi
-if test $collectd_heartbeat -ne 25
+if test "x$with_libnetlink" = "xyes"
 then
-       AC_DEFINE_UNQUOTED(COLLECTD_HEARTBEAT, "$collectd_heartbeat", [Interval in which plugins are queried.])
+       BUILD_WITH_LIBNETLINK_CFLAGS="$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")
 
 # 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_load="no"
+plugin_memory="no"
+plugin_multimeter="no"
+plugin_nfs="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$have_getloadavg" = "xyes"
+then
+       plugin_load="yes"
+fi
+
+# Mac OS X memory interface
+if test "x$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([df],        [disable], [module], [df statistics])
-AC_COLLECTD([dns],       [disable], [module], [dns statistics])
-AC_COLLECTD([email],     [disable], [module], [email statistics])
-AC_COLLECTD([quota],     [enable],  [module], [quota statistics (experimental)])
-AC_COLLECTD([hddtemp],   [disable], [module], [hdd temperature 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([nfs],       [disable], [module], [nfs statistics])
-AC_COLLECTD([nginx],     [disable], [module], [nginx statistics])
-AC_COLLECTD([ntpd],      [disable], [module], [nfs statistics])
-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([swap],      [disable], [module], [swap statistics])
-AC_COLLECTD([tape],      [disable], [module], [tape statistics])
-AC_COLLECTD([traffic],   [disable], [module], [system traffic statistics])
-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/libconfig/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([load],        [$plugin_load],       [System load])
+AC_PLUGIN([logfile],     [yes],                [File logging plugin])
+AC_PLUGIN([mbmon],       [yes],                [Query mbmond])
+AC_PLUGIN([memory],      [$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([ntpd],        [yes],                [NTPd statistics])
+AC_PLUGIN([nut],         [$with_libupsclient], [Network UPS tools statistics])
+AC_PLUGIN([perl],        [$with_libperl],      [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],       [$plugin_users],      [User statistics])
+AC_PLUGIN([vserver],     [$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="$withval"
+               with_perl_bindings="yes"
+       fi
+],
+[
+       PERL_BINDINGS_OPTIONS=""
+       with_perl_bindings="yes"
+])
+if test "x$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$with_liboping" = "xyes" -a "x$with_own_liboping" = "xyes"
+then
+       with_liboping="yes (shipped version)"
+fi
+
+if test "x$with_libperl" = "xyes"
+then
+       with_libperl="yes (version `$perl_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;
 
@@ -1092,20 +1915,29 @@ Configuration:
   Libraries:
     libcurl . . . . . . $with_libcurl
     libiokit  . . . . . $with_libiokit
-    liboping  . . . . . $with_liboping
-    librrd  . . . . . . $with_rrdtool
-    lm_sensors  . . . . $with_lm_sensors
-    libstatgrab . . . . $with_libstatgrab
+    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
+    libperl . . . . . . $with_libperl
     libpthread  . . . . $with_libpthread
+    librrd  . . . . . . $with_rrdtool
+    libsensors  . . . . $with_lm_sensors
+    libstatgrab . . . . $with_libstatgrab
+    libupsclient  . . . $with_libupsclient
+    libxmms . . . . . . $with_libxmms
 
   Features:
-    debug . . . . . . . $enable_debug
     daemon mode . . . . $enable_daemon
-    step  . . . . . . . $collectd_step seconds
-    heartbeat . . . . . $collectd_heartbeat seconds
+    debug . . . . . . . $enable_debug
+
+  Bindings:
+    perl  . . . . . . . $with_perl_bindings
 
   Modules:
     apache  . . . . . . $enable_apache
@@ -1114,28 +1946,44 @@ Configuration:
     battery . . . . . . $enable_battery
     cpu . . . . . . . . $enable_cpu
     cpufreq . . . . . . $enable_cpufreq
+    csv . . . . . . . . $enable_csv
     df  . . . . . . . . $enable_df
     disk  . . . . . . . $enable_disk
     dns . . . . . . . . $enable_dns
     email . . . . . . . $enable_email
+    entropy . . . . . . $enable_entropy
+    exec  . . . . . . . $enable_exec
     hddtemp . . . . . . $enable_hddtemp
+    interface . . . . . $enable_interface
+    iptables  . . . . . $enable_iptables
+    ipvs  . . . . . . . $enable_ipvs
+    irq . . . . . . . . $enable_irq
     load  . . . . . . . $enable_load
+    logfile . . . . . . $enable_logfile
     mbmon . . . . . . . $enable_mbmon
     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
     sensors . . . . . . $enable_sensors
     serial  . . . . . . $enable_serial
+    snmp  . . . . . . . $enable_snmp
     swap  . . . . . . . $enable_swap
+    syslog  . . . . . . $enable_syslog
     tape  . . . . . . . $enable_tape
-    traffic . . . . . . $enable_traffic
+    tcpconns  . . . . . $enable_tcpconns
+    unixsock  . . . . . $enable_unixsock
     users . . . . . . . $enable_users
     vserver . . . . . . $enable_vserver
     wireless  . . . . . $enable_wireless
+    xmms  . . . . . . . $enable_xmms
 
 EOF