main/collectd: upgrade to 5.5.0

1 files changed, 6056 insertions, 0 deletions

diff --git a/main/collectd/configure.ac b/main/collectd/configure.ac
new file mode 100644
index 0000000000..88125495b2
--- /dev/null
+++ b/main/collectd/configure.ac
@@ -0,0 +1,6056 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
+AC_CONFIG_SRCDIR(src/)
+AC_CONFIG_HEADERS(src/config.h)
+AC_CONFIG_AUX_DIR([libltdl/config])
+
+m4_ifdef([LT_PACKAGE_VERSION],
+	# libtool >= 2.2
+	[
+	 LT_CONFIG_LTDL_DIR([libltdl])
+	 LT_INIT([dlopen])
+	 LTDL_INIT([convenience])
+	 AC_DEFINE(LIBTOOL_VERSION, 2, [Define to used libtool version.])
+	]
+,
+	# libtool <= 1.5
+	[
+	 AC_LIBLTDL_CONVENIENCE
+	 AC_SUBST(LTDLINCL)
+	 AC_SUBST(LIBLTDL)
+	 AC_LIBTOOL_DLOPEN
+	 AC_CONFIG_SUBDIRS(libltdl)
+	 AC_DEFINE(LIBTOOL_VERSION, 1, [Define to used libtool version.])
+	]
+)
+
+AM_INIT_AUTOMAKE([tar-pax dist-bzip2 foreign])
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+AC_LANG(C)
+
+AC_PREFIX_DEFAULT("/opt/collectd")
+
+AC_SYS_LARGEFILE
+
+#
+# Checks for programs.
+#
+AC_PROG_CC
+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$GCC" = "xyes")
+
+AC_DISABLE_STATIC
+AC_PROG_LIBTOOL
+AC_PROG_LEX
+AC_PROG_YACC
+PKG_PROG_PKG_CONFIG
+
+AC_CHECK_PROG([have_protoc_c], [protoc-c], [yes], [no])
+AC_CHECK_HEADERS([google/protobuf-c/protobuf-c.h],
+                 [have_protobuf_c_h="yes"],
+                 [have_protobuf_c_h="no"])
+if test "x$have_protoc_c" = "xyes" && test "x$have_protobuf_c_h" != "xyes"
+then
+	have_protoc_c="no (unable to find <google/protobuf-c/protobuf-c.h>)"
+fi
+AM_CONDITIONAL(HAVE_PROTOC_C, test "x$have_protoc_c" = "xyes")
+
+AC_MSG_CHECKING([for kernel type ($host_os)])
+case $host_os in
+	*linux*)
+	AC_DEFINE([KERNEL_LINUX], 1, [True if program is to be compiled for a Linux kernel])
+	ac_system="Linux"
+	;;
+	*solaris*)
+	AC_DEFINE([KERNEL_SOLARIS], 1, [True if program is to be compiled for a Solaris kernel])
+	ac_system="Solaris"
+	;;
+	*darwin*)
+	AC_DEFINE([KERNEL_DARWIN], 1, [True if program is to be compiled for a Darwin kernel])
+	ac_system="Darwin"
+	;;
+	*openbsd*)
+	AC_DEFINE([KERNEL_OPENBSD], 1, [True if program is to be compiled for an OpenBSD kernel])
+	ac_system="OpenBSD"
+	;;
+	*aix*)
+	AC_DEFINE([KERNEL_AIX], 1, [True if program is to be compiled for a AIX kernel])
+	ac_system="AIX"
+	;;
+	*freebsd*)
+	AC_DEFINE([KERNEL_FREEBSD], 1, [True if program is to be compiled for a FreeBSD kernel])
+	ac_system="FreeBSD"
+	;;
+	*)
+	ac_system="unknown"
+esac
+AC_MSG_RESULT([$ac_system])
+
+AM_CONDITIONAL([BUILD_LINUX],[test "x$x$ac_system" = "xLinux"])
+AM_CONDITIONAL([BUILD_SOLARIS],[test "x$x$ac_system" = "xSolaris"])
+AM_CONDITIONAL([BUILD_DARWIN],[test "x$x$ac_system" = "xDarwin"])
+AM_CONDITIONAL([BUILD_OPENBSD],[test "x$x$ac_system" = "xOpenBSD"])
+AM_CONDITIONAL([BUILD_AIX],[test "x$x$ac_system" = "xAIX"])
+AM_CONDITIONAL([BUILD_FREEBSD],[test "x$x$ac_system" = "xFreeBSD"])
+
+if test "x$ac_system" = "xLinux"
+then
+	AC_ARG_VAR([KERNEL_DIR], [path to Linux kernel sources])
+	if test -z "$KERNEL_DIR"
+	then
+		KERNEL_DIR="/lib/modules/`uname -r`/source"
+	fi
+
+	KERNEL_CFLAGS="-I$KERNEL_DIR/include"
+	AC_SUBST(KERNEL_CFLAGS)
+fi
+
+if test "x$ac_system" = "xSolaris"
+then
+	AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Define to enforce POSIX thread semantics under Solaris.])
+	AC_DEFINE(_REENTRANT,               1, [Define to enable reentrancy interfaces.])
+fi
+if test "x$ac_system" = "xAIX"
+then
+	AC_DEFINE(_THREAD_SAFE_ERRNO, 1, [Define to use the thread-safe version of errno under AIX.])
+fi
+
+# Where to install .pc files.
+pkgconfigdir="${libdir}/pkgconfig"
+AC_SUBST(pkgconfigdir)
+
+# Check for standards compliance mode
+AC_ARG_ENABLE(standards,
+	      AS_HELP_STRING([--enable-standards], [Enable standards compliance mode]),
+	      [enable_standards="$enableval"],
+	      [enable_standards="no"])
+if test "x$enable_standards" = "xyes"
+then
+	AC_DEFINE(_ISOC99_SOURCE,        1, [Define to enforce ISO C99 compliance.])
+	AC_DEFINE(_POSIX_C_SOURCE, 200809L, [Define to enforce POSIX.1-2008 compliance.])
+	AC_DEFINE(_XOPEN_SOURCE,       700, [Define to enforce X/Open 7 (XSI) compliance.])
+	AC_DEFINE(_REENTRANT,            1, [Define to enable reentrancy interfaces.])
+	if test "x$GCC" = "xyes"
+	then
+		CFLAGS="$CFLAGS -std=c99"
+	fi
+fi
+AM_CONDITIONAL(BUILD_FEATURE_STANDARDS, test "x$enable_standards" = "xyes")
+
+#
+# Checks for header files.
+#
+AC_HEADER_STDC
+AC_HEADER_SYS_WAIT
+AC_HEADER_DIRENT
+AC_HEADER_STDBOOL
+
+AC_CHECK_HEADERS(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 endian.h sys/isa_defs.h fnmatch.h libgen.h)
+
+# For ping library
+AC_CHECK_HEADERS(netinet/in_systm.h, [], [],
+[#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+])
+AC_CHECK_HEADERS(netinet/in.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
+])
+AC_CHECK_HEADERS(netinet/ip.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
+])
+AC_CHECK_HEADERS(netinet/ip_icmp.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/ip_var.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/ip6.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
+])
+AC_CHECK_HEADERS(netinet/icmp6.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_IP6_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>
+#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
+])
+
+# 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)
+	# For the battery plugin
+	AC_CHECK_HEADERS(IOKit/ps/IOPowerSources.h, [], [],
+[
+#if HAVE_IOKIT_IOKITLIB_H
+#  include <IOKit/IOKitLib.h>
+#endif
+#if HAVE_IOKIT_IOTYPES_H
+#  include <IOKit/IOTypes.h>
+#endif
+])
+
+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
+])
+
+AC_MSG_CHECKING([for sysctl kern.cp_times])
+if test -x /sbin/sysctl
+then
+	/sbin/sysctl kern.cp_times 2>/dev/null
+	if test $? -eq 0
+	then
+		AC_MSG_RESULT([yes])
+		AC_DEFINE(HAVE_SYSCTL_KERN_CP_TIMES, 1,
+		[Define if sysctl supports kern.cp_times])
+	else
+		AC_MSG_RESULT([no])
+	fi
+else
+	AC_MSG_RESULT([no])
+fi
+
+# For hddtemp module
+AC_CHECK_HEADERS(linux/major.h)
+
+# For md module (Linux only)
+if test "x$ac_system" = "xLinux"
+then
+	AC_CHECK_HEADERS(linux/raid/md_u.h,
+			 [have_linux_raid_md_u_h="yes"],
+			 [have_linux_raid_md_u_h="no"],
+[
+#include <sys/ioctl.h>
+#include <linux/major.h>
+#include <linux/types.h>
+])
+else
+	have_linux_raid_md_u_h="no"
+fi
+
+# For the swap module
+have_linux_wireless_h="no"
+if test "x$ac_system" = "xLinux"
+then
+  AC_CHECK_HEADERS(linux/wireless.h,
+		   [have_linux_wireless_h="yes"],
+		   [have_linux_wireless_h="no"],
+[
+#include <dirent.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+])
+fi
+
+# For the swap module
+have_sys_swap_h="yes"
+AC_CHECK_HEADERS(sys/swap.h vm/anon.h, [], [have_sys_swap_h="no"],
+[
+#undef _FILE_OFFSET_BITS
+#undef _LARGEFILE64_SOURCE
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+])
+
+if test "x$have_sys_swap_h$ac_system" = "xnoSolaris"
+then
+	hint_64=""
+	if test "x$GCC" = "xyes"
+	then
+		hint_64="CFLAGS='-m64'"
+	else
+		hint_64="CFLAGS='-xarch=v9'"
+	fi
+	AC_MSG_NOTICE([Solaris detected and sys/swap.h not usable. Try building a 64-bit binary ($hint_64 ./configure).])
+fi
+
+# For load module
+# For the processes plugin
+# For users module
+AC_CHECK_HEADERS(sys/loadavg.h linux/config.h utmp.h utmpx.h)
+
+# For interface plugin
+AC_CHECK_HEADERS(ifaddrs.h)
+AC_CHECK_HEADERS(net/if.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+])
+AC_CHECK_HEADERS(linux/if.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+])
+AC_CHECK_HEADERS(linux/inet_diag.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+#if HAVE_LINUX_INET_DIAG_H
+# include <linux/inet_diag.h>
+#endif
+])
+AC_CHECK_HEADERS(linux/netdevice.h, [], [],
+[
+#if HAVE_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+#if HAVE_LINUX_IF_H
+# include <linux/if.h>
+#endif
+])
+
+# For ethstat module
+AC_CHECK_HEADERS(linux/sockios.h,
+    [have_linux_sockios_h="yes"],
+    [have_linux_sockios_h="no"],
+    [
+#if HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+    ])
+AC_CHECK_HEADERS(linux/ethtool.h,
+    [have_linux_ethtool_h="yes"],
+    [have_linux_ethtool_h="no"],
+    [
+#if HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+#if HAVE_LINUX_SOCKIOS_H
+# include <linux/sockios.h>
+#endif
+    ])
+
+# For ipvs module
+have_linux_ip_vs_h="no"
+have_net_ip_vs_h="no"
+have_ip_vs_h="no"
+ip_vs_h_needs_kernel_cflags="no"
+if test "x$ac_system" = "xLinux"
+then
+	AC_CHECK_HEADERS(linux/ip_vs.h, [have_linux_ip_vs_h="yes"])
+	AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
+	AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
+
+	if test "x$have_linux_ip_vs_h$have_net_ip_vs_h$have_ip_vs_h" = "xnonono" && test -d "$KERNEL_DIR"
+	then
+		SAVE_CFLAGS="$CFLAGS"
+		CFLAGS="$CFLAGS $KERNEL_CFLAGS"
+
+		AC_MSG_NOTICE([Did not find ip_vs.h. Trying again using headers from $KERNEL_DIR.])
+
+		AC_CHECK_HEADERS(linux/ip_vs.h, [have_linux_ip_vs_h="yes"])
+		AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
+		AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
+
+		if test "x$have_linux_ip_vs_h" = "xyes" || test "x$have_net_ip_vs_h" = "xyes" || test "x$have_ip_vs_h" = "xyes"
+		then
+			ip_vs_h_needs_kernel_cflags="yes"
+		fi
+
+		CFLAGS="$SAVE_CFLAGS"
+	fi
+fi
+AM_CONDITIONAL(IP_VS_H_NEEDS_KERNEL_CFLAGS, test "x$ip_vs_h_needs_kernel_cflags" = "xyes")
+
+# For quota module
+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(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, [], [],
+[
+#if HAVE_SYS_SOCKET_H
+#	include <sys/socket.h>
+#endif
+])
+
+AC_CHECK_HEADERS(pwd.h grp.h sys/un.h ctype.h limits.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 sys/vmmeter.h kvm.h wordexp.h locale.h)
+
+# For the dns plugin
+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/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>
+#endif
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+])
+
+AC_CHECK_HEADERS(netinet/ip_compat.h)
+
+have_net_pfvar_h="no"
+AC_CHECK_HEADERS(net/pfvar.h,
+               [have_net_pfvar_h="yes"],
+               [have_net_pfvar_h="no"],
+[
+#if HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+])
+
+# For the multimeter plugin
+have_termios_h="no"
+AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])
+
+# For the turbostat plugin
+have_asm_msrindex_h="no"
+AC_CHECK_HEADERS(asm/msr-index.h, [have_asm_msrindex_h="yes"])
+
+if test "x$have_asm_msrindex_h" = "xyes"
+then
+  AC_CACHE_CHECK([whether asm/msr-index.h has MSR_CORE_C3_RESIDENCY],
+                 [c_cv_have_usable_asm_msrindex_h],
+                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include<asm/msr-index.h>
+]]],
+[[[
+int y = MSR_CORE_C3_RESIDENCY;
+return(y);
+]]]
+  )],
+                 [c_cv_have_usable_asm_msrindex_h="yes"],
+                 [c_cv_have_usable_asm_msrindex_h="no"],
+                                  )
+                 )
+fi
+
+have_cpuid_h="no"
+AC_CHECK_HEADERS(cpuid.h, [have_cpuid_h="yes"])
+
+AC_CHECK_HEADERS(sys/capability.h)
+#
+# Checks for typedefs, structures, and compiler characteristics.
+#
+AC_C_CONST
+AC_C_INLINE
+AC_TYPE_OFF_T
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UID_T
+AC_TYPE_UINT32_T
+AC_HEADER_TIME
+
+#
+# Checks for library functions.
+#
+AC_PROG_GCC_TRADITIONAL
+AC_CHECK_FUNCS(gettimeofday select strdup strtol getaddrinfo getnameinfo strchr memcpy strstr strcmp strncmp strncpy strlen strncasecmp strcasecmp openlog closelog sysconf setenv if_indextoname setlocale)
+
+AC_FUNC_STRERROR_R
+
+SAVE_CFLAGS="$CFLAGS"
+# Emulate behavior of src/Makefile.am
+if test "x$GCC" = "xyes"
+then
+	CFLAGS="$CFLAGS -Wall -Werror"
+fi
+
+AC_CACHE_CHECK([for strtok_r],
+  [c_cv_have_strtok_r_default],
+  AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+]]],
+[[[
+      char buffer[] = "foo,bar,baz";
+      char *token;
+      char *dummy;
+      char *saveptr;
+
+      dummy = buffer;
+      saveptr = NULL;
+      while ((token = strtok_r (dummy, ",", &saveptr)) != NULL)
+      {
+        dummy = NULL;
+        printf ("token = %s;\n", token);
+      }
+]]]
+    )],
+    [c_cv_have_strtok_r_default="yes"],
+    [c_cv_have_strtok_r_default="no"]
+  )
+)
+
+if test "x$c_cv_have_strtok_r_default" = "xno"
+then
+  CFLAGS="$CFLAGS -D_REENTRANT=1"
+
+  AC_CACHE_CHECK([if strtok_r needs _REENTRANT],
+    [c_cv_have_strtok_r_reentrant],
+    AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+]]],
+[[[
+        char buffer[] = "foo,bar,baz";
+        char *token;
+        char *dummy;
+        char *saveptr;
+
+        dummy = buffer;
+        saveptr = NULL;
+        while ((token = strtok_r (dummy, ",", &saveptr)) != NULL)
+        {
+          dummy = NULL;
+          printf ("token = %s;\n", token);
+        }
+]]]
+      )],
+      [c_cv_have_strtok_r_reentrant="yes"],
+      [AC_MSG_FAILURE([strtok_r isn't available. Please file a bugreport!])]
+    )
+  )
+fi
+
+CFLAGS="$SAVE_CFLAGS"
+if test "x$c_cv_have_strtok_r_reentrant" = "xyes"
+then
+	CFLAGS="$CFLAGS -D_REENTRANT=1"
+fi
+
+AC_CHECK_FUNCS(getpwnam_r getgrnam_r setgroups regcomp regerror regexec regfree)
+
+socket_needs_socket="no"
+AC_CHECK_FUNCS(socket, [], AC_CHECK_LIB(socket, socket, [socket_needs_socket="yes"], AC_MSG_ERROR(cannot find socket)))
+AM_CONDITIONAL(BUILD_WITH_LIBSOCKET, test "x$socket_needs_socket" = "xyes")
+
+clock_gettime_needs_rt="no"
+clock_gettime_needs_posix4="no"
+have_clock_gettime="no"
+AC_CHECK_FUNCS(clock_gettime, [have_clock_gettime="yes"])
+if test "x$have_clock_gettime" = "xno"
+then
+	AC_CHECK_LIB(rt, clock_gettime, [clock_gettime_needs_rt="yes"
+					 have_clock_gettime="yes"])
+fi
+if test "x$have_clock_gettime" = "xno"
+then
+	AC_CHECK_LIB(posix4, clock_gettime, [clock_gettime_needs_posix4="yes"
+					     have_clock_gettime="yes"])
+fi
+if test "x$have_clock_gettime" = "xyes"
+then
+	AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [Define if the clock_gettime(2) function is available.])
+else
+	AC_MSG_WARN(cannot find clock_gettime)
+fi
+
+nanosleep_needs_rt="no"
+nanosleep_needs_posix4="no"
+AC_CHECK_FUNCS(nanosleep,
+    [],
+    AC_CHECK_LIB(rt, nanosleep,
+        [nanosleep_needs_rt="yes"],
+        AC_CHECK_LIB(posix4, nanosleep,
+            [nanosleep_needs_posix4="yes"],
+            AC_MSG_ERROR(cannot find nanosleep))))
+
+AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$clock_gettime_needs_rt" = "xyes" || test "x$nanosleep_needs_rt" = "xyes")
+AM_CONDITIONAL(BUILD_WITH_LIBPOSIX4, test "x$clock_gettime_needs_posix4" = "xyes" || test "x$nanosleep_needs_posix4" = "xyes")
+
+AC_CHECK_FUNCS(sysctl, [have_sysctl="yes"], [have_sysctl="no"])
+AC_CHECK_FUNCS(sysctlbyname, [have_sysctlbyname="yes"], [have_sysctlbyname="no"])
+AC_CHECK_FUNCS(host_statistics, [have_host_statistics="yes"], [have_host_statistics="no"])
+AC_CHECK_FUNCS(processor_info, [have_processor_info="yes"], [have_processor_info="no"])
+AC_CHECK_FUNCS(thread_info, [have_thread_info="yes"], [have_thread_info="no"])
+AC_CHECK_FUNCS(statfs, [have_statfs="yes"], [have_statfs="no"])
+AC_CHECK_FUNCS(statvfs, [have_statvfs="yes"], [have_statvfs="no"])
+AC_CHECK_FUNCS(getifaddrs, [have_getifaddrs="yes"], [have_getifaddrs="no"])
+AC_CHECK_FUNCS(getloadavg, [have_getloadavg="yes"], [have_getloadavg="no"])
+AC_CHECK_FUNCS(syslog, [have_syslog="yes"], [have_syslog="no"])
+AC_CHECK_FUNCS(getutent, [have_getutent="yes"], [have_getutent="no"])
+AC_CHECK_FUNCS(getutxent, [have_getutxent="yes"], [have_getutxent="no"])
+
+# Check for strptime {{{
+if test "x$GCC" = "xyes"
+then
+	SAVE_CFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -Wall -Wextra -Werror"
+fi
+
+AC_CHECK_FUNCS(strptime, [have_strptime="yes"], [have_strptime="no"])
+if test "x$have_strptime" = "xyes"
+then
+	AC_CACHE_CHECK([whether strptime is exported by default],
+		       [c_cv_have_strptime_default],
+		       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <time.h>
+]]],
+[[[
+ struct tm stm;
+ (void) strptime ("2010-12-30%13:42:42", "%Y-%m-%dT%T", &stm);
+]]]
+		       )],
+		       [c_cv_have_strptime_default="yes"],
+		       [c_cv_have_strptime_default="no"]))
+fi
+if test "x$have_strptime" = "xyes" && test "x$c_cv_have_strptime_default" = "xno"
+then
+	AC_CACHE_CHECK([whether strptime needs standards mode],
+		       [c_cv_have_strptime_standards],
+		       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#ifndef _ISOC99_SOURCE
+# define _ISOC99_SOURCE 1
+#endif
+#ifndef _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE 200112L
+#endif
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 500
+#endif
+#include <time.h>
+]]],
+[[[
+ struct tm stm;
+ (void) strptime ("2010-12-30%13:42:42", "%Y-%m-%dT%T", &stm);
+]]]
+		       )],
+		       [c_cv_have_strptime_standards="yes"],
+		       [c_cv_have_strptime_standards="no"]))
+
+	if test "x$c_cv_have_strptime_standards" = "xyes"
+	then
+		AC_DEFINE([STRPTIME_NEEDS_STANDARDS], 1, [Set to true if strptime is only exported in X/Open mode (GNU libc).])
+	else
+		have_strptime="no"
+	fi
+fi
+
+if test "x$GCC" = "xyes"
+then
+	CFLAGS="$SAVE_CFLAGS"
+fi
+# }}} Check for strptime
+
+AC_CHECK_FUNCS(swapctl, [have_swapctl="yes"], [have_swapctl="no"])
+if test "x$have_swapctl" = "xyes"; then
+        AC_CACHE_CHECK([whether swapctl takes two arguments],
+                [c_cv_have_swapctl_two_args],
+                AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#if HAVE_SYS_SWAP_H && !defined(_LP64) && _FILE_OFFSET_BITS == 64
+#  undef _FILE_OFFSET_BITS
+#  undef _LARGEFILE64_SOURCE
+#endif
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/swap.h>
+#include <unistd.h>
+]]],
+[[[
+int num = swapctl(0, NULL);
+]]]
+                        )],
+                        [c_cv_have_swapctl_two_args="yes"],
+                        [c_cv_have_swapctl_two_args="no"]
+                )
+        )
+        AC_CACHE_CHECK([whether swapctl takes three arguments],
+                [c_cv_have_swapctl_three_args],
+                AC_COMPILE_IFELSE(
+                        [AC_LANG_PROGRAM(
+[[[
+#if HAVE_SYS_SWAP_H && !defined(_LP64) && _FILE_OFFSET_BITS == 64
+#  undef _FILE_OFFSET_BITS
+#  undef _LARGEFILE64_SOURCE
+#endif
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/swap.h>
+#include <unistd.h>
+]]],
+[[[
+int num = swapctl(0, NULL, 0);
+]]]
+                        )],
+                        [c_cv_have_swapctl_three_args="yes"],
+                        [c_cv_have_swapctl_three_args="no"]
+                )
+        )
+fi
+# Check for different versions of `swapctl' here..
+if test "x$have_swapctl" = "xyes"; then
+        if test "x$c_cv_have_swapctl_two_args" = "xyes"; then
+                AC_DEFINE(HAVE_SWAPCTL_TWO_ARGS, 1,
+                          [Define if the function swapctl exists and takes two arguments.])
+        fi
+        if test "x$c_cv_have_swapctl_three_args" = "xyes"; then
+                AC_DEFINE(HAVE_SWAPCTL_THREE_ARGS, 1,
+                          [Define if the function swapctl exists and takes three arguments.])
+        fi
+fi
+
+# 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],
+    [c_cv_have_nan_default],
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <math.h>
+static double foo = NAN;
+]]],
+[[[
+       if (isnan (foo))
+        return 0;
+       else
+	return 1;
+]]]
+      )],
+      [c_cv_have_nan_default="yes"],
+      [c_cv_have_nan_default="no"]
+    )
+  )
+  if test "x$c_cv_have_nan_default" = "xyes"
+  then
+    nan_type="default"
+  fi
+fi
+if test "x$nan_type" = "xnone"; then
+  AC_CACHE_CHECK([whether NAN is defined by __USE_ISOC99],
+    [c_cv_have_nan_isoc],
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#define __USE_ISOC99 1
+#include <math.h>
+static double foo = NAN;
+]]],
+[[[
+       if (isnan (foo))
+        return 0;
+       else
+	return 1;
+]]]
+      )],
+      [c_cv_have_nan_isoc="yes"],
+      [c_cv_have_nan_isoc="no"]
+    )
+  )
+  if test "x$c_cv_have_nan_isoc" = "xyes"
+  then
+    nan_type="isoc99"
+  fi
+fi
+if test "x$nan_type" = "xnone"; then
+  SAVE_LDFLAGS=$LDFLAGS
+  LDFLAGS="$LDFLAGS -lm"
+  AC_CACHE_CHECK([whether NAN can be defined by 0/0],
+    [c_cv_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 double foo = NAN;
+]]],
+[[[
+       if (isnan (foo))
+        return 0;
+       else
+	return 1;
+]]]
+      )],
+      [c_cv_have_nan_zero="yes"],
+      [c_cv_have_nan_zero="no"]
+    )
+  )
+  LDFLAGS=$SAVE_LDFLAGS
+  if test "x$c_cv_have_nan_zero" = "xyes"
+  then
+    nan_type="zero"
+  fi
+fi
+
+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$nan_type" = "xzero"; then
+  AC_DEFINE(NAN_ZERO_ZERO, 1,
+    [Define if NAN can be defined as (0.0 / 0.0)])
+else
+  AC_MSG_ERROR([Didn't find out how to statically initialize variables to NAN. Sorry.])
+fi; fi; fi
+
+AC_ARG_WITH(fp-layout, [AS_HELP_STRING([--with-fp-layout], [set the memory layout of doubles. For crosscompiling only.])],
+[
+ if test "x$withval" = "xnothing"; then
+ 	fp_layout_type="nothing"
+ else if test "x$withval" = "xendianflip"; then
+ 	fp_layout_type="endianflip"
+ else if test "x$withval" = "xintswap"; then
+ 	fp_layout_type="intswap"
+ else
+ 	AC_MSG_ERROR([Invalid argument for --with-fp-layout. Valid arguments are: nothing, endianflip, intswap]);
+fi; fi; fi
+],
+[fp_layout_type="unknown"])
+
+if test "x$fp_layout_type" = "xunknown"; then
+  AC_CACHE_CHECK([if doubles are stored in x86 representation],
+    [c_cv_fp_layout_need_nothing],
+    AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDBOOL_H
+# include <stdbool.h>
+#endif
+]]],
+[[[
+	uint64_t i0;
+	uint64_t i1;
+	uint8_t c[8];
+	double d;
+
+	d = 8.642135e130;
+	memcpy ((void *) &i0, (void *) &d, 8);
+
+	i1 = i0;
+	memcpy ((void *) c, (void *) &i1, 8);
+
+	if ((c[0] == 0x2f) && (c[1] == 0x25)
+			&& (c[2] == 0xc0) && (c[3] == 0xc7)
+			&& (c[4] == 0x43) && (c[5] == 0x2b)
+			&& (c[6] == 0x1f) && (c[7] == 0x5b))
+		return (0);
+	else
+		return (1);
+]]]
+      )],
+      [c_cv_fp_layout_need_nothing="yes"],
+      [c_cv_fp_layout_need_nothing="no"]
+    )
+  )
+  if test "x$c_cv_fp_layout_need_nothing" = "xyes"; then
+    fp_layout_type="nothing"
+  fi
+fi
+if test "x$fp_layout_type" = "xunknown"; then
+  AC_CACHE_CHECK([if endianflip converts to x86 representation],
+    [c_cv_fp_layout_need_endianflip],
+    AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDBOOL_H
+# include <stdbool.h>
+#endif
+#define endianflip(A) ((((uint64_t)(A) & 0xff00000000000000LL) >> 56) | \
+                       (((uint64_t)(A) & 0x00ff000000000000LL) >> 40) | \
+                       (((uint64_t)(A) & 0x0000ff0000000000LL) >> 24) | \
+                       (((uint64_t)(A) & 0x000000ff00000000LL) >> 8)  | \
+                       (((uint64_t)(A) & 0x00000000ff000000LL) << 8)  | \
+                       (((uint64_t)(A) & 0x0000000000ff0000LL) << 24) | \
+                       (((uint64_t)(A) & 0x000000000000ff00LL) << 40) | \
+                       (((uint64_t)(A) & 0x00000000000000ffLL) << 56))
+]]],
+[[[
+	uint64_t i0;
+	uint64_t i1;
+	uint8_t c[8];
+	double d;
+
+	d = 8.642135e130;
+	memcpy ((void *) &i0, (void *) &d, 8);
+
+	i1 = endianflip (i0);
+	memcpy ((void *) c, (void *) &i1, 8);
+
+	if ((c[0] == 0x2f) && (c[1] == 0x25)
+			&& (c[2] == 0xc0) && (c[3] == 0xc7)
+			&& (c[4] == 0x43) && (c[5] == 0x2b)
+			&& (c[6] == 0x1f) && (c[7] == 0x5b))
+		return (0);
+	else
+		return (1);
+]]]
+      )],
+      [c_cv_fp_layout_need_endianflip="yes"],
+      [c_cv_fp_layout_need_endianflip="no"]
+    )
+  )
+  if test "x$c_cv_fp_layout_need_endianflip" = "xyes"; then
+    fp_layout_type="endianflip"
+  fi
+fi
+if test "x$fp_layout_type" = "xunknown"; then
+  AC_CACHE_CHECK([if intswap converts to x86 representation],
+    [c_cv_fp_layout_need_intswap],
+    AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDBOOL_H
+# include <stdbool.h>
+#endif
+#define intswap(A)    ((((uint64_t)(A) & 0xffffffff00000000LL) >> 32) | \
+                       (((uint64_t)(A) & 0x00000000ffffffffLL) << 32))
+]]],
+[[[
+	uint64_t i0;
+	uint64_t i1;
+	uint8_t c[8];
+	double d;
+
+	d = 8.642135e130;
+	memcpy ((void *) &i0, (void *) &d, 8);
+
+	i1 = intswap (i0);
+	memcpy ((void *) c, (void *) &i1, 8);
+
+	if ((c[0] == 0x2f) && (c[1] == 0x25)
+			&& (c[2] == 0xc0) && (c[3] == 0xc7)
+			&& (c[4] == 0x43) && (c[5] == 0x2b)
+			&& (c[6] == 0x1f) && (c[7] == 0x5b))
+		return (0);
+	else
+		return (1);
+]]]
+      )],
+      [c_cv_fp_layout_need_intswap="yes"],
+      [c_cv_fp_layout_need_intswap="no"]
+    )
+  )
+  if test "x$c_cv_fp_layout_need_intswap" = "xyes"; then
+    fp_layout_type="intswap"
+  fi
+fi
+
+if test "x$fp_layout_type" = "xnothing"; then
+  AC_DEFINE(FP_LAYOUT_NEED_NOTHING, 1,
+  [Define if doubles are stored in x86 representation.])
+else if test "x$fp_layout_type" = "xendianflip"; then
+  AC_DEFINE(FP_LAYOUT_NEED_ENDIANFLIP, 1,
+  [Define if endianflip is needed to convert to x86 representation.])
+else if test "x$fp_layout_type" = "xintswap"; then
+  AC_DEFINE(FP_LAYOUT_NEED_INTSWAP, 1,
+  [Define if intswap is needed to convert to x86 representation.])
+else
+  AC_MSG_ERROR([Didn't find out how doubles are stored in memory. Sorry.])
+fi; fi; fi
+
+# --with-useragent {{{
+AC_ARG_WITH(useragent, [AS_HELP_STRING([--with-useragent@<:@=AGENT@:>@], [User agent to use on http requests])],
+[
+    if test "x$withval" != "xno" && test "x$withval" != "xyes"
+    then
+        AC_DEFINE_UNQUOTED(COLLECTD_USERAGENT, ["$withval"], [User agent for http requests])
+    fi
+])
+
+# }}}
+
+have_getfsstat="no"
+AC_CHECK_FUNCS(getfsstat, [have_getfsstat="yes"])
+have_getvfsstat="no"
+AC_CHECK_FUNCS(getvfsstat, [have_getvfsstat="yes"])
+have_listmntent="no"
+AC_CHECK_FUNCS(listmntent, [have_listmntent="yes"])
+
+have_getmntent="no"
+AC_CHECK_FUNCS(getmntent, [have_getmntent="c"])
+if test "x$have_getmntent" = "xno"; then
+	AC_CHECK_LIB(sun, getmntent, [have_getmntent="sun"])
+fi
+if test "x$have_getmntent" = "xno"; then
+	AC_CHECK_LIB(seq, getmntent, [have_getmntent="seq"])
+fi
+if test "x$have_getmntent" = "xno"; then
+	AC_CHECK_LIB(gen, getmntent, [have_getmntent="gen"])
+fi
+
+if test "x$have_getmntent" = "xc"; then
+	AC_CACHE_CHECK([whether getmntent takes one argument],
+		[c_cv_have_one_getmntent],
+		AC_COMPILE_IFELSE(
+			[AC_LANG_PROGRAM(
+[[[
+#include "$srcdir/src/utils_mount.h"
+]]],
+[[[
+FILE *fh;
+struct mntent *me;
+fh = setmntent ("/etc/mtab", "r");
+me = getmntent (fh);
+return(me->mnt_passno);
+]]]
+			)],
+			[c_cv_have_one_getmntent="yes"],
+			[c_cv_have_one_getmntent="no"]
+		)
+	)
+	AC_CACHE_CHECK([whether getmntent takes two arguments],
+		[c_cv_have_two_getmntent],
+		AC_COMPILE_IFELSE(
+			[AC_LANG_PROGRAM(
+[[[
+#include "$srcdir/src/utils_mount.h"
+]]],
+[[[
+				 FILE *fh;
+				 struct mnttab mt;
+				 int status;
+				 fh = fopen ("/etc/mnttab", "r");
+				 status = getmntent (fh, &mt);
+				 return(status);
+]]]
+			)],
+			[c_cv_have_two_getmntent="yes"],
+			[c_cv_have_two_getmntent="no"]
+		)
+	)
+fi
+
+# Check for different versions of `getmntent' here..
+
+if test "x$have_getmntent" = "xc"; then
+	if test "x$c_cv_have_one_getmntent" = "xyes"; then
+		AC_DEFINE(HAVE_ONE_GETMNTENT, 1,
+			  [Define if the function getmntent exists and takes one argument.])
+	fi
+	if test "x$c_cv_have_two_getmntent" = "xyes"; then
+		AC_DEFINE(HAVE_TWO_GETMNTENT, 1,
+			  [Define if the function getmntent exists and takes two arguments.])
+	fi
+fi
+if test "x$have_getmntent" = "xsun"; then
+	AC_DEFINE(HAVE_SUN_GETMNTENT, 1,
+		  [Define if the function getmntent exists. It's the version from libsun.])
+fi
+if test "x$have_getmntent" = "xseq"; then
+	AC_DEFINE(HAVE_SEQ_GETMNTENT, 1,
+		  [Define if the function getmntent exists. It's the version from libseq.])
+fi
+if test "x$have_getmntent" = "xgen"; then
+	AC_DEFINE(HAVE_GEN_GETMNTENT, 1,
+		  [Define if the function getmntent exists. It's the version from libgen.])
+fi
+
+# Check for htonll
+AC_CACHE_CHECK([if have htonll defined],
+                  [c_cv_have_htonll],
+                  AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <sys/types.h>
+#include <netinet/in.h>
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+]]],
+[[[
+          return htonll(0);
+]]]
+    )],
+    [c_cv_have_htonll="yes"],
+    [c_cv_have_htonll="no"]
+  )
+)
+if test "x$c_cv_have_htonll" = "xyes"
+then
+    AC_DEFINE(HAVE_HTONLL, 1, [Define if the function htonll exists.])
+fi
+
+# Check for structures
+AC_CHECK_MEMBERS([struct if_data.ifi_ibytes, struct if_data.ifi_opackets, struct if_data.ifi_ierrors],
+	[AC_DEFINE(HAVE_STRUCT_IF_DATA, 1, [Define if struct if_data exists and is usable.])],
+	[],
+	[
+	#include <sys/types.h>
+	#include <sys/socket.h>
+	#include <net/if.h>
+	])
+AC_CHECK_MEMBERS([struct net_device_stats.rx_bytes, struct net_device_stats.tx_packets, struct net_device_stats.rx_errors],
+	[AC_DEFINE(HAVE_STRUCT_NET_DEVICE_STATS, 1, [Define if struct net_device_stats exists and is usable.])],
+	[],
+	[
+	#include <sys/types.h>
+	#include <sys/socket.h>
+	#include <linux/if.h>
+	#include <linux/netdevice.h>
+	])
+AC_CHECK_MEMBERS([struct inet_diag_req.id, struct inet_diag_req.idiag_states],
+	[AC_DEFINE(HAVE_STRUCT_LINUX_INET_DIAG_REQ, 1, [Define if struct inet_diag_req exists and is usable.])],
+	[],
+	[
+	#include <linux/inet_diag.h>
+	])
+
+
+AC_CHECK_MEMBERS([struct ip_mreqn.imr_ifindex], [],
+	[],
+	[
+	#include <netinet/in.h>
+	#include <net/if.h>
+	])
+
+AC_CHECK_MEMBERS([struct kinfo_proc.ki_pid, struct kinfo_proc.ki_rssize, struct kinfo_proc.ki_rusage],
+	[
+		AC_DEFINE(HAVE_STRUCT_KINFO_PROC_FREEBSD, 1,
+			[Define if struct kinfo_proc exists in the FreeBSD variant.])
+		have_struct_kinfo_proc_freebsd="yes"
+	],
+	[
+		have_struct_kinfo_proc_freebsd="no"
+	],
+	[
+#include <kvm.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+	])
+
+AC_CHECK_MEMBERS([struct kinfo_proc.p_pid, struct kinfo_proc.p_vm_rssize],
+	[
+		AC_DEFINE(HAVE_STRUCT_KINFO_PROC_OPENBSD, 1,
+			[Define if struct kinfo_proc exists in the OpenBSD variant.])
+		have_struct_kinfo_proc_openbsd="yes"
+	],
+	[
+		have_struct_kinfo_proc_openbsd="no"
+	],
+	[
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <kvm.h>
+	])
+
+AC_CHECK_MEMBERS([struct udphdr.uh_dport, struct udphdr.uh_sport], [], [],
+[#define _BSD_SOURCE
+#define _DEFAULT_SOURCE
+#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
+#if HAVE_NETINET_UDP_H
+# include <netinet/udp.h>
+#endif
+])
+AC_CHECK_MEMBERS([struct udphdr.dest, struct udphdr.source], [], [],
+[#define _BSD_SOURCE
+#define _DEFAULT_SOURCE
+#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
+#if HAVE_NETINET_UDP_H
+# include <netinet/udp.h>
+#endif
+])
+
+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
+	])
+AC_CHECK_MEMBERS([struct shm_info.used_ids], [],
+[
+	AC_CHECK_MEMBERS([struct shm_info.__used_ids], [], [],
+	[#include <sys/shm.h>
+	])
+],
+[#include <sys/shm.h>
+])
+
+#
+# Checks for libraries begin here
+#
+
+with_libresolv="yes"
+AC_CHECK_LIB(resolv, res_search,
+[
+	AC_DEFINE(HAVE_LIBRESOLV, 1, [Define to 1 if you have the 'resolv' library (-lresolv).])
+],
+[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$with_libhal" = "xyes"; then
+	if test "x$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:])
+
+if test "x$ac_system" = "xAIX"
+then
+	with_perfstat="yes"
+	with_procinfo="yes"
+else
+	with_perfstat="no (AIX only)"
+	with_procinfo="no (AIX only)"
+fi
+
+if test "x$with_perfstat" = "xyes"
+then
+	AC_CHECK_LIB(perfstat, perfstat_reset, [with_perfstat="yes"], [with_perfstat="no (perfstat not found)"], [])
+#	AC_CHECK_HEADERS(sys/protosw.h libperfstat.h,, [with_perfstat="no (perfstat not found)"])
+fi
+if test "x$with_perfstat" = "xyes"
+then
+	 AC_DEFINE(HAVE_PERFSTAT, 1, [Define to 1 if you have the 'perfstat' library (-lperfstat)])
+	 # struct members pertaining to donation have been added to libperfstat somewhere between AIX5.3ML5 and AIX5.3ML9
+	 AC_CHECK_MEMBER([perfstat_partition_type_t.b.donate_enabled], [], [], [[#include <libperfstat.h]])
+	 if test "x$av_cv_member_perfstat_partition_type_t_b_donate_enabled" = "xyes"
+	 then
+		AC_DEFINE(PERFSTAT_SUPPORTS_DONATION, 1, [Define to 1 if your version of the 'perfstat' library supports donation])
+	 fi
+fi
+AM_CONDITIONAL(BUILD_WITH_PERFSTAT, test "x$with_perfstat" = "xyes")
+
+# Processes plugin under AIX.
+if test "x$with_procinfo" = "xyes"
+then
+	AC_CHECK_HEADERS(procinfo.h,, [with_procinfo="no (procinfo.h not found)"])
+fi
+if test "x$with_procinfo" = "xyes"
+then
+	 AC_DEFINE(HAVE_PROCINFO_H, 1, [Define to 1 if you have the procinfo.h])
+fi
+
+if test "x$ac_system" = "xSolaris"
+then
+	with_kstat="yes"
+	with_devinfo="yes"
+else
+	with_kstat="no (Solaris only)"
+	with_devinfo="no (Solaris only)"
+fi
+
+if test "x$with_kstat" = "xyes"
+then
+	AC_CHECK_LIB(kstat, kstat_open, [with_kstat="yes"], [with_kstat="no (libkstat not found)"], [])
+fi
+if test "x$with_kstat" = "xyes"
+then
+	AC_CHECK_LIB(devinfo, di_init, [with_devinfo="yes"], [with_devinfo="no (not found)"], [])
+	AC_CHECK_HEADERS(kstat.h,, [with_kstat="no (kstat.h not found)"])
+fi
+if test "x$with_kstat" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBKSTAT, 1,
+		  [Define to 1 if you have the 'kstat' library (-lkstat)])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBKSTAT, test "x$with_kstat" = "xyes")
+AM_CONDITIONAL(BUILD_WITH_LIBDEVINFO, test "x$with_devinfo" = "xyes")
+
+with_libiokit="no"
+if test "x$ac_system" = "xDarwin"
+then
+	with_libiokit="yes"
+else
+	with_libiokit="no"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBIOKIT, test "x$with_libiokit" = "xyes")
+
+with_libkvm="no"
+AC_CHECK_LIB(kvm, kvm_getprocs, [with_kvm_getprocs="yes"], [with_kvm_getprocs="no"])
+if test "x$with_kvm_getprocs" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBKVM_GETPROCS, 1,
+		  [Define to 1 if you have the 'kvm' library with the 'kvm_getprocs' symbol (-lkvm)])
+	with_libkvm="yes"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBKVM_GETPROCS, test "x$with_kvm_getprocs" = "xyes")
+
+AC_CHECK_LIB(kvm, kvm_getswapinfo, [with_kvm_getswapinfo="yes"], [with_kvm_getswapinfo="no"])
+if test "x$with_kvm_getswapinfo" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBKVM_GETSWAPINFO, 1,
+		  [Define to 1 if you have the 'kvm' library with the 'kvm_getswapinfo' symbol (-lkvm)])
+	with_libkvm="yes"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBKVM_GETSWAPINFO, test "x$with_kvm_getswapinfo" = "xyes")
+
+AC_CHECK_LIB(kvm, kvm_nlist, [with_kvm_nlist="yes"], [with_kvm_nlist="no"])
+if test "x$with_kvm_nlist" = "xyes"
+then
+	AC_CHECK_HEADERS(bsd/nlist.h nlist.h)
+	AC_DEFINE(HAVE_LIBKVM_NLIST, 1,
+		  [Define to 1 if you have the 'kvm' library with the 'kvm_nlist' symbol (-lkvm)])
+	with_libkvm="yes"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBKVM_NLIST, test "x$with_kvm_nlist" = "xyes")
+
+AC_CHECK_LIB(kvm, kvm_openfiles, [with_kvm_openfiles="yes"], [with_kvm_openfiles="no"])
+if test "x$with_kvm_openfiles" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBKVM_NLIST, 1,
+		  [Define to 1 if you have the 'kvm' library with the 'kvm_openfiles' symbol (-lkvm)])
+	with_libkvm="yes"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBKVM_OPENFILES, test "x$with_kvm_openfiles" = "xyes")
+
+# --with-libaquaero5 {{{
+AC_ARG_WITH(libaquaero5, [AS_HELP_STRING([--with-libaquaero5@<:@=PREFIX@:>@], [Path to aquatools-ng source code.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_libaquaero5="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_libaquaero5="no"
+ else
+	 with_libaquaero5="yes"
+	 LIBAQUAERO5_CFLAGS="$LIBAQUAERO5_CFLAGS -I$withval/src"
+	 LIBAQUAERO5_LDFLAGS="$LIBAQUAERO5_LDFLAGS -L$withval/obj"
+ fi; fi
+],
+[with_libaquaero5="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBAQUAERO5_CFLAGS"
+LDFLAGS="$LDFLAGS $LIBAQUAERO5_LDFLAGS"
+
+if test "x$with_libaquaero5" = "xyes"
+then
+	if test "x$LIBAQUAERO5_CFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libaquaero5 CPPFLAGS: $LIBAQUAERO5_CFLAGS])
+	fi
+	AC_CHECK_HEADERS(libaquaero5.h,
+	[with_libaquaero5="yes"],
+	[with_libaquaero5="no (libaquaero5.h not found)"])
+fi
+if test "x$with_libaquaero5" = "xyes"
+then
+	if test "x$LIBAQUAERO5_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libaquaero5 LDFLAGS: $LIBAQUAERO5_LDFLAGS])
+	fi
+	AC_CHECK_LIB(aquaero5, libaquaero5_poll,
+	[with_libaquaero5="yes"],
+	[with_libaquaero5="no (symbol 'libaquaero5_poll' not found)"])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libaquaero5" = "xyes"
+then
+	BUILD_WITH_LIBAQUAERO5_CFLAGS="$LIBAQUAERO5_CFLAGS"
+	BUILD_WITH_LIBAQUAERO5_LDFLAGS="$LIBAQUAERO5_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBAQUAERO5_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBAQUAERO5_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBAQUAERO5, test "x$with_libaquaero5" = "xyes")
+# }}}
+
+# --with-libhiredis {{{
+AC_ARG_WITH(libhiredis, [AS_HELP_STRING([--with-libhiredis@<:@=PREFIX@:>@],
+      [Path to libhiredis.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_libhiredis="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_libhiredis="no"
+ else
+	 with_libhiredis="yes"
+	 LIBHIREDIS_CPPFLAGS="$LIBHIREDIS_CPPFLAGS -I$withval/include"
+	 LIBHIREDIS_LDFLAGS="$LIBHIREDIS_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_libhiredis="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBHIREDIS_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBHIREDIS_LDFLAGS"
+
+if test "x$with_libhiredis" = "xyes"
+then
+	if test "x$LIBHIREDIS_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libhiredis CPPFLAGS: $LIBHIREDIS_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(hiredis/hiredis.h,
+	[with_libhiredis="yes"],
+	[with_libhiredis="no (hiredis.h not found)"])
+fi
+if test "x$with_libhiredis" = "xyes"
+then
+	if test "x$LIBHIREDIS_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libhiredis LDFLAGS: $LIBHIREDIS_LDFLAGS])
+	fi
+	AC_CHECK_LIB(hiredis, redisCommand,
+	[with_libhiredis="yes"],
+	[with_libhiredis="no (symbol 'redisCommand' not found)"])
+
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libhiredis" = "xyes"
+then
+	BUILD_WITH_LIBHIREDIS_CPPFLAGS="$LIBHIREDIS_CPPFLAGS"
+	BUILD_WITH_LIBHIREDIS_LDFLAGS="$LIBHIREDIS_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBHIREDIS_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBHIREDIS_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBHIREDIS, test "x$with_libhiredis" = "xyes")
+# }}}
+
+# --with-libcurl {{{
+with_curl_config="curl-config"
+with_curl_cflags=""
+with_curl_libs=""
+AC_ARG_WITH(libcurl, [AS_HELP_STRING([--with-libcurl@<:@=PREFIX@:>@], [Path to libcurl.])],
+[
+	if test "x$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
+],
+[
+	with_libcurl="yes"
+])
+if test "x$with_libcurl" = "xyes"
+then
+	with_curl_cflags=`$with_curl_config --cflags 2>/dev/null`
+	curl_config_status=$?
+
+	if test $curl_config_status -ne 0
+	then
+		with_libcurl="no ($with_curl_config failed)"
+	else
+		SAVE_CPPFLAGS="$CPPFLAGS"
+		CPPFLAGS="$CPPFLAGS $with_curl_cflags"
+
+		AC_CHECK_HEADERS(curl/curl.h, [], [with_libcurl="no (curl/curl.h not found)"], [])
+
+		CPPFLAGS="$SAVE_CPPFLAGS"
+	fi
+fi
+if test "x$with_libcurl" = "xyes"
+then
+	with_curl_libs=`$with_curl_config --libs 2>/dev/null`
+	curl_config_status=$?
+
+	if test $curl_config_status -ne 0
+	then
+		with_libcurl="no ($with_curl_config failed)"
+	else
+		AC_CHECK_LIB(curl, curl_easy_init,
+		 [with_libcurl="yes"],
+		 [with_libcurl="no (symbol 'curl_easy_init' not found)"],
+		 [$with_curl_libs])
+		AC_CHECK_DECL(CURLOPT_USERNAME,
+		 [have_curlopt_username="yes"],
+		 [have_curlopt_username="no"],
+		 [[#include <curl/curl.h>]])
+		AC_CHECK_DECL(CURLOPT_TIMEOUT_MS,
+		 [have_curlopt_timeout="yes"],
+		 [have_curlopt_timeout="no"],
+		 [[#include <curl/curl.h>]])
+	fi
+fi
+if test "x$with_libcurl" = "xyes"
+then
+	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)
+
+	if test "x$have_curlopt_username" = "xyes"
+	then
+		AC_DEFINE(HAVE_CURLOPT_USERNAME, 1, [Define if libcurl supports CURLOPT_USERNAME option.])
+	fi
+
+	if test "x$have_curlopt_timeout" = "xyes"
+	then
+		AC_DEFINE(HAVE_CURLOPT_TIMEOUT_MS, 1, [Define if libcurl supports CURLOPT_TIMEOUT_MS option.])
+	fi
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBCURL, test "x$with_libcurl" = "xyes")
+# }}}
+
+# --with-libdbi {{{
+with_libdbi_cppflags=""
+with_libdbi_ldflags=""
+AC_ARG_WITH(libdbi, [AS_HELP_STRING([--with-libdbi@<:@=PREFIX@:>@], [Path to libdbi.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_libdbi_cppflags="-I$withval/include"
+		with_libdbi_ldflags="-L$withval/lib"
+		with_libdbi="yes"
+	else
+		with_libdbi="$withval"
+	fi
+],
+[
+	with_libdbi="yes"
+])
+if test "x$with_libdbi" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libdbi_cppflags"
+
+	AC_CHECK_HEADERS(dbi/dbi.h, [with_libdbi="yes"], [with_libdbi="no (dbi/dbi.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libdbi" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libdbi_cppflags"
+	LDFLAGS="$LDFLAGS $with_libdbi_ldflags"
+
+	AC_CHECK_LIB(dbi, dbi_initialize, [with_libdbi="yes"], [with_libdbi="no (Symbol 'dbi_initialize' not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libdbi" = "xyes"
+then
+	BUILD_WITH_LIBDBI_CPPFLAGS="$with_libdbi_cppflags"
+	BUILD_WITH_LIBDBI_LDFLAGS="$with_libdbi_ldflags"
+	BUILD_WITH_LIBDBI_LIBS="-ldbi"
+	AC_SUBST(BUILD_WITH_LIBDBI_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBDBI_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBDBI_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBDBI, test "x$with_libdbi" = "xyes")
+# }}}
+
+# --with-libesmtp {{{
+AC_ARG_WITH(libesmtp, [AS_HELP_STRING([--with-libesmtp@<:@=PREFIX@:>@], [Path to libesmtp.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		LDFLAGS="$LDFLAGS -L$withval/lib"
+		CPPFLAGS="$CPPFLAGS -I$withval/include -D_THREAD_SAFE"
+		with_libesmtp="yes"
+	else
+		with_libesmtp="$withval"
+	fi
+],
+[
+	with_libesmtp="yes"
+])
+if test "x$with_libesmtp" = "xyes"
+then
+	AC_CHECK_LIB(esmtp, smtp_create_session,
+	[
+		AC_DEFINE(HAVE_LIBESMTP, 1, [Define to 1 if you have the esmtp library (-lesmtp).])
+	], [with_libesmtp="no (libesmtp not found)"])
+fi
+if test "x$with_libesmtp" = "xyes"
+then
+	AC_CHECK_HEADERS(libesmtp.h,
+	[
+		AC_DEFINE(HAVE_LIBESMTP_H, 1, [Define to 1 if you have the <libesmtp.h> header file.])
+	], [with_libesmtp="no (libesmtp.h not found)"])
+fi
+if test "x$with_libesmtp" = "xyes"
+then
+	collect_libesmtp=1
+else
+	collect_libesmtp=0
+fi
+AC_DEFINE_UNQUOTED(COLLECT_LIBESMTP, [$collect_libesmtp],
+	[Wether or not to use the esmtp library])
+AM_CONDITIONAL(BUILD_WITH_LIBESMTP, test "x$with_libesmtp" = "xyes")
+# }}}
+
+# --with-libganglia {{{
+AC_ARG_WITH(libganglia, [AS_HELP_STRING([--with-libganglia@<:@=PREFIX@:>@], [Path to libganglia.])],
+[
+ if test -f "$withval" && test -x "$withval"
+ then
+	 with_libganglia_config="$withval"
+	 with_libganglia="yes"
+ else if test -f "$withval/bin/ganglia-config" && test -x "$withval/bin/ganglia-config"
+ then
+	 with_libganglia_config="$withval/bin/ganglia-config"
+	 with_libganglia="yes"
+ else if test -d "$withval"
+ then
+	 GANGLIA_CPPFLAGS="-I$withval/include"
+	 GANGLIA_LDFLAGS="-L$withval/lib"
+	 with_libganglia="yes"
+ else
+	 with_libganglia_config="ganglia-config"
+	 with_libganglia="$withval"
+ fi; fi; fi
+],
+[
+ with_libganglia_config="ganglia-config"
+ with_libganglia="yes"
+])
+
+if test "x$with_libganglia" = "xyes" && test "x$with_libganglia_config" != "x"
+then
+	if test "x$GANGLIA_CPPFLAGS" = "x"
+	then
+		GANGLIA_CPPFLAGS=`"$with_libganglia_config" --cflags 2>/dev/null`
+	fi
+
+	if test "x$GANGLIA_LDFLAGS" = "x"
+	then
+		GANGLIA_LDFLAGS=`"$with_libganglia_config" --ldflags 2>/dev/null`
+	fi
+
+	if test "x$GANGLIA_LIBS" = "x"
+	then
+		GANGLIA_LIBS=`"$with_libganglia_config" --libs 2>/dev/null`
+	fi
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $GANGLIA_CPPFLAGS"
+LDFLAGS="$LDFLAGS $GANGLIA_LDFLAGS"
+
+if test "x$with_libganglia" = "xyes"
+then
+	AC_CHECK_HEADERS(gm_protocol.h,
+	[
+		AC_DEFINE(HAVE_GM_PROTOCOL_H, 1,
+			  [Define to 1 if you have the <gm_protocol.h> header file.])
+	], [with_libganglia="no (gm_protocol.h not found)"])
+fi
+
+if test "x$with_libganglia" = "xyes"
+then
+	AC_CHECK_LIB(ganglia, xdr_Ganglia_value_msg,
+	[
+		AC_DEFINE(HAVE_LIBGANGLIA, 1,
+			  [Define to 1 if you have the ganglia library (-lganglia).])
+	], [with_libganglia="no (symbol xdr_Ganglia_value_msg not found)"])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+AC_SUBST(GANGLIA_CPPFLAGS)
+AC_SUBST(GANGLIA_LDFLAGS)
+AC_SUBST(GANGLIA_LIBS)
+AM_CONDITIONAL(BUILD_WITH_LIBGANGLIA, test "x$with_libganglia" = "xyes")
+# }}}
+
+# --with-libgcrypt {{{
+GCRYPT_CPPFLAGS="$GCRYPT_CPPFLAGS"
+GCRYPT_LDFLAGS="$GCRYPT_LDFLAGS"
+GCRYPT_LIBS="$GCRYPT_LIBS"
+AC_ARG_WITH(libgcrypt, [AS_HELP_STRING([--with-libgcrypt@<:@=PREFIX@:>@], [Path to libgcrypt.])],
+[
+ if test -f "$withval" && test -x "$withval"
+ then
+	 with_libgcrypt_config="$withval"
+	 with_libgcrypt="yes"
+ else if test -f "$withval/bin/gcrypt-config" && test -x "$withval/bin/gcrypt-config"
+ then
+	 with_libgcrypt_config="$withval/bin/gcrypt-config"
+	 with_libgcrypt="yes"
+ else if test -d "$withval"
+ then
+	 GCRYPT_CPPFLAGS="$GCRYPT_CPPFLAGS -I$withval/include"
+	 GCRYPT_LDFLAGS="$GCRYPT_LDFLAGS -L$withval/lib"
+	 with_libgcrypt="yes"
+ else
+	 with_libgcrypt_config="gcrypt-config"
+	 with_libgcrypt="$withval"
+ fi; fi; fi
+],
+[
+ with_libgcrypt_config="libgcrypt-config"
+ with_libgcrypt="yes"
+])
+
+if test "x$with_libgcrypt" = "xyes" && test "x$with_libgcrypt_config" != "x"
+then
+	if test "x$GCRYPT_CPPFLAGS" = "x"
+	then
+		GCRYPT_CPPFLAGS=`"$with_libgcrypt_config" --cflags 2>/dev/null`
+	fi
+
+	if test "x$GCRYPT_LDFLAGS" = "x"
+	then
+		gcrypt_exec_prefix=`"$with_libgcrypt_config" --exec-prefix 2>/dev/null`
+		GCRYPT_LDFLAGS="-L$gcrypt_exec_prefix/lib"
+	fi
+
+	if test "x$GCRYPT_LIBS" = "x"
+	then
+		GCRYPT_LIBS=`"$with_libgcrypt_config" --libs 2>/dev/null`
+	fi
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $GCRYPT_CPPFLAGS"
+LDFLAGS="$LDFLAGS $GCRYPT_LDFLAGS"
+
+if test "x$with_libgcrypt" = "xyes"
+then
+	if test "x$GCRYPT_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([gcrypt CPPFLAGS: $GCRYPT_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(gcrypt.h,
+		[with_libgcrypt="yes"],
+		[with_libgcrypt="no (gcrypt.h not found)"])
+fi
+
+if test "x$with_libgcrypt" = "xyes"
+then
+	if test "x$GCRYPT_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([gcrypt LDFLAGS: $GCRYPT_LDFLAGS])
+	fi
+	AC_CHECK_LIB(gcrypt, gcry_md_hash_buffer,
+		[with_libgcrypt="yes"],
+		[with_libgcrypt="no (symbol gcry_md_hash_buffer not found)"])
+
+	if test "$with_libgcrypt" != "no"; then
+		m4_ifdef([AM_PATH_LIBGCRYPT],[AM_PATH_LIBGCRYPT(1:1.2.0,,with_libgcrypt="no (version 1.2.0+ required)")])
+		GCRYPT_CPPFLAGS="$LIBGCRYPT_CPPFLAGS $LIBGCRYPT_CFLAGS"
+		GCRYPT_LIBS="$LIBGCRYPT_LIBS"
+	fi
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libgcrypt" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBGCRYPT, 1, [Define to 1 if you have the gcrypt library (-lgcrypt).])
+fi
+
+AC_SUBST(GCRYPT_CPPFLAGS)
+AC_SUBST(GCRYPT_LDFLAGS)
+AC_SUBST(GCRYPT_LIBS)
+AM_CONDITIONAL(BUILD_WITH_LIBGCRYPT, test "x$with_libgcrypt" = "xyes")
+# }}}
+
+# --with-libiptc {{{
+AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
+[
+	if test "x$withval" = "xyes"
+	then
+		with_libiptc="pkgconfig"
+	else if test "x$withval" = "xno"
+	then
+		with_libiptc="no"
+	else
+		with_libiptc="yes"
+		with_libiptc_cflags="-I$withval/include"
+		with_libiptc_libs="-L$withval/lib"
+	fi; fi
+],
+[
+	if test "x$ac_system" = "xLinux"
+	then
+		with_libiptc="pkgconfig"
+	else
+		with_libiptc="no (Linux only)"
+	fi
+])
+
+if test "x$with_libiptc" = "xpkgconfig" && test "x$PKG_CONFIG" = "x"
+then
+	with_libiptc="no (Don't have pkg-config)"
+fi
+
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	$PKG_CONFIG --exists 'libiptc' 2>/dev/null
+	if test $? -ne 0
+	then
+		with_libiptc="no (pkg-config doesn't know libiptc)"
+	fi
+fi
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	with_libiptc_cflags="`$PKG_CONFIG --cflags 'libiptc'`"
+	if test $? -ne 0
+	then
+		with_libiptc="no ($PKG_CONFIG failed)"
+	fi
+	with_libiptc_libs="`$PKG_CONFIG --libs 'libiptc'`"
+	if test $? -ne 0
+	then
+		with_libiptc="no ($PKG_CONFIG failed)"
+	fi
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS $with_libiptc_cflags"
+
+# check whether the header file for libiptc is available.
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	AC_CHECK_HEADERS(libiptc/libiptc.h libiptc/libip6tc.h, ,
+			[with_libiptc="no (header file missing)"])
+fi
+# If the header file is available, check for the required type declaractions.
+# They may be missing in old versions of libiptc. In that case, they will be
+# declared in the iptables plugin.
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	AC_CHECK_TYPES([iptc_handle_t, ip6tc_handle_t], [], [])
+fi
+# Check for the iptc_init symbol in the library.
+# This could be in iptc or ip4tc
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	SAVE_LIBS="$LIBS"
+	AC_SEARCH_LIBS(iptc_init, [iptc ip4tc],
+			[with_libiptc="pkgconfig"],
+			[with_libiptc="no"],
+			[$with_libiptc_libs])
+	LIBS="$SAVE_LIBS"
+fi
+if test "x$with_libiptc" = "xpkgconfig"
+then
+	with_libiptc="yes"
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+
+AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
+if test "x$with_libiptc" = "xyes"
+then
+	BUILD_WITH_LIBIPTC_CPPFLAGS="$with_libiptc_cflags"
+	BUILD_WITH_LIBIPTC_LDFLAGS="$with_libiptc_libs"
+	AC_SUBST(BUILD_WITH_LIBIPTC_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBIPTC_LDFLAGS)
+fi
+# }}}
+
+# --with-java {{{
+with_java_home="$JAVA_HOME"
+if test "x$with_java_home" = "x"
+then
+	with_java_home="/usr/lib/jvm"
+fi
+with_java_vmtype="client"
+with_java_cflags=""
+with_java_libs=""
+JAVAC="$JAVAC"
+JAR="$JAR"
+AC_ARG_WITH(java, [AS_HELP_STRING([--with-java@<:@=PREFIX@:>@], [Path to Java home.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_java="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_java="yes"
+	else
+		with_java_home="$withval"
+		with_java="yes"
+	fi; fi
+],
+[with_java="yes"])
+if test "x$with_java" = "xyes"
+then
+	if test -d "$with_java_home"
+	then
+		AC_MSG_CHECKING([for jni.h])
+		TMPVAR=`find -L "$with_java_home" -name jni.h -type f -exec 'dirname' '{}' ';' 2>/dev/null | head -n 1`
+		if test "x$TMPVAR" != "x"
+		then
+			AC_MSG_RESULT([found in $TMPVAR])
+			JAVA_CPPFLAGS="$JAVA_CPPFLAGS -I$TMPVAR"
+		else
+			AC_MSG_RESULT([not found])
+		fi
+
+		AC_MSG_CHECKING([for jni_md.h])
+		TMPVAR=`find -L "$with_java_home" -name jni_md.h -type f -exec 'dirname' '{}' ';' 2>/dev/null | head -n 1`
+		if test "x$TMPVAR" != "x"
+		then
+			AC_MSG_RESULT([found in $TMPVAR])
+			JAVA_CPPFLAGS="$JAVA_CPPFLAGS -I$TMPVAR"
+		else
+			AC_MSG_RESULT([not found])
+		fi
+
+		AC_MSG_CHECKING([for libjvm.so])
+		TMPVAR=`find -L "$with_java_home" -name libjvm.so -type f -exec 'dirname' '{}' ';' 2>/dev/null | head -n 1`
+		if test "x$TMPVAR" != "x"
+		then
+			AC_MSG_RESULT([found in $TMPVAR])
+			JAVA_LDFLAGS="$JAVA_LDFLAGS -L$TMPVAR -Wl,-rpath -Wl,$TMPVAR"
+		else
+			AC_MSG_RESULT([not found])
+		fi
+
+		if test "x$JAVAC" = "x"
+		then
+			AC_MSG_CHECKING([for javac])
+			TMPVAR=`find -L "$with_java_home" -name javac -type f 2>/dev/null | head -n 1`
+			if test "x$TMPVAR" != "x"
+			then
+				JAVAC="$TMPVAR"
+				AC_MSG_RESULT([$JAVAC])
+			else
+				AC_MSG_RESULT([not found])
+			fi
+		fi
+		if test "x$JAR" = "x"
+		then
+			AC_MSG_CHECKING([for jar])
+			TMPVAR=`find -L "$with_java_home" -name jar -type f 2>/dev/null | head -n 1`
+			if test "x$TMPVAR" != "x"
+			then
+				JAR="$TMPVAR"
+				AC_MSG_RESULT([$JAR])
+			else
+				AC_MSG_RESULT([not found])
+			fi
+		fi
+	else if test "x$with_java_home" != "x"
+	then
+		AC_MSG_WARN([JAVA_HOME: No such directory: $with_java_home])
+	fi; fi
+fi
+
+if test "x$JAVA_CPPFLAGS" != "x"
+then
+	AC_MSG_NOTICE([Building with JAVA_CPPFLAGS set to: $JAVA_CPPFLAGS])
+fi
+if test "x$JAVA_CFLAGS" != "x"
+then
+	AC_MSG_NOTICE([Building with JAVA_CFLAGS set to: $JAVA_CFLAGS])
+fi
+if test "x$JAVA_LDFLAGS" != "x"
+then
+	AC_MSG_NOTICE([Building with JAVA_LDFLAGS set to: $JAVA_LDFLAGS])
+fi
+if test "x$JAVAC" = "x"
+then
+	with_javac_path="$PATH"
+	if test "x$with_java_home" != "x"
+	then
+		with_javac_path="$with_java_home:with_javac_path"
+		if test -d "$with_java_home/bin"
+		then
+			with_javac_path="$with_java_home/bin:with_javac_path"
+		fi
+	fi
+
+	AC_PATH_PROG(JAVAC, javac, [], "$with_javac_path")
+fi
+if test "x$JAVAC" = "x"
+then
+	with_java="no (javac not found)"
+fi
+if test "x$JAR" = "x"
+then
+	with_jar_path="$PATH"
+	if test "x$with_java_home" != "x"
+	then
+		with_jar_path="$with_java_home:$with_jar_path"
+		if test -d "$with_java_home/bin"
+		then
+			with_jar_path="$with_java_home/bin:$with_jar_path"
+		fi
+	fi
+
+	AC_PATH_PROG(JAR, jar, [], "$with_jar_path")
+fi
+if test "x$JAR" = "x"
+then
+	with_java="no (jar not found)"
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_CFLAGS="$CFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $JAVA_CPPFLAGS"
+CFLAGS="$CFLAGS $JAVA_CFLAGS"
+LDFLAGS="$LDFLAGS $JAVA_LDFLAGS"
+
+if test "x$with_java" = "xyes"
+then
+	AC_CHECK_HEADERS(jni.h, [], [with_java="no (jni.h not found)"])
+fi
+if test "x$with_java" = "xyes"
+then
+	AC_CHECK_LIB(jvm, JNI_CreateJavaVM,
+	[with_java="yes"],
+	[with_java="no (libjvm not found)"],
+	[$JAVA_LIBS])
+fi
+if test "x$with_java" = "xyes"
+then
+	JAVA_LIBS="$JAVA_LIBS -ljvm"
+	AC_MSG_NOTICE([Building with JAVA_LIBS set to: $JAVA_LIBS])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+CFLAGS="$SAVE_CFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+AC_SUBST(JAVA_CPPFLAGS)
+AC_SUBST(JAVA_CFLAGS)
+AC_SUBST(JAVA_LDFLAGS)
+AC_SUBST(JAVA_LIBS)
+AM_CONDITIONAL(BUILD_WITH_JAVA, test "x$with_java" = "xyes")
+# }}}
+
+# --with-libldap {{{
+AC_ARG_WITH(libldap, [AS_HELP_STRING([--with-libldap@<:@=PREFIX@:>@], [Path to libldap.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_libldap="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_libldap="no"
+ else
+	 with_libldap="yes"
+	 LIBLDAP_CPPFLAGS="$LIBLDAP_CPPFLAGS -I$withval/include"
+	 LIBLDAP_LDFLAGS="$LIBLDAP_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_libldap="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBLDAP_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBLDAP_LDFLAGS"
+
+if test "x$with_libldap" = "xyes"
+then
+	if test "x$LIBLDAP_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libldap CPPFLAGS: $LIBLDAP_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(ldap.h,
+	[with_libldap="yes"],
+	[with_libldap="no ('ldap.h' not found)"])
+fi
+if test "x$with_libldap" = "xyes"
+then
+	if test "x$LIBLDAP_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libldap LDFLAGS: $LIBLDAP_LDFLAGS])
+	fi
+	AC_CHECK_LIB(ldap, ldap_initialize,
+	[with_libldap="yes"],
+	[with_libldap="no (symbol 'ldap_initialize' not found)"])
+
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libldap" = "xyes"
+then
+	BUILD_WITH_LIBLDAP_CPPFLAGS="$LIBLDAP_CPPFLAGS"
+	BUILD_WITH_LIBLDAP_LDFLAGS="$LIBLDAP_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBLDAP_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBLDAP_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBLDAP, test "x$with_libldap" = "xyes")
+# }}}
+
+# --with-liblvm2app {{{
+with_liblvm2app_cppflags=""
+with_liblvm2app_ldflags=""
+AC_ARG_WITH(liblvm2app, [AS_HELP_STRING([--with-liblvm2app@<:@=PREFIX@:>@], [Path to liblvm2app.])],
+[
+        if test "x$withval" != "xno" && test "x$withval" != "xyes"
+        then
+                with_liblvm2app_cppflags="-I$withval/include"
+                with_liblvm2app_ldflags="-L$withval/lib"
+                with_liblvm2app="yes"
+        else
+                with_liblvm2app="$withval"
+        fi
+],
+[
+        with_liblvm2app="yes"
+])
+if test "x$with_liblvm2app" = "xyes"
+then
+        SAVE_CPPFLAGS="$CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $with_liblvm2app_cppflags"
+
+        AC_CHECK_HEADERS(lvm2app.h, [with_liblvm2app="yes"], [with_liblvm2app="no (lvm2app.h not found)"])
+
+        CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+
+if test "x$with_liblvm2app" = "xyes"
+then
+        SAVE_CPPFLAGS="$CPPFLAGS"
+        SAVE_LDFLAGS="$LDFLAGS"
+        CPPFLAGS="$CPPFLAGS $with_liblvm2app_cppflags"
+        LDFLAGS="$LDFLAGS $with_liblvm2app_ldflags"
+
+        AC_CHECK_LIB(lvm2app, lvm_lv_get_property, [with_liblvm2app="yes"], [with_liblvm2app="no (Symbol 'lvm_lv_get_property' not found)"])
+
+        CPPFLAGS="$SAVE_CPPFLAGS"
+        LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_liblvm2app" = "xyes"
+then
+        BUILD_WITH_LIBLVM2APP_CPPFLAGS="$with_liblvm2app_cppflags"
+        BUILD_WITH_LIBLVM2APP_LDFLAGS="$with_liblvm2app_ldflags"
+        BUILD_WITH_LIBLVM2APP_LIBS="-llvm2app"
+        AC_SUBST(BUILD_WITH_LIBLVM2APP_CPPFLAGS)
+        AC_SUBST(BUILD_WITH_LIBLVM2APP_LDFLAGS)
+        AC_SUBST(BUILD_WITH_LIBLVM2APP_LIBS)
+        AC_DEFINE(HAVE_LIBLVM2APP, 1, [Define if liblvm2app is present and usable.])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBLVM2APP, test "x$with_liblvm2app" = "xyes")
+# }}}
+
+# --with-libmemcached {{{
+with_libmemcached_cppflags=""
+with_libmemcached_ldflags=""
+AC_ARG_WITH(libmemcached, [AS_HELP_STRING([--with-libmemcached@<:@=PREFIX@:>@], [Path to libmemcached.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_libmemcached_cppflags="-I$withval/include"
+		with_libmemcached_ldflags="-L$withval/lib"
+		with_libmemcached="yes"
+	else
+		with_libmemcached="$withval"
+	fi
+],
+[
+	with_libmemcached="yes"
+])
+if test "x$with_libmemcached" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libmemcached_cppflags"
+
+	AC_CHECK_HEADERS(libmemcached/memcached.h, [with_libmemcached="yes"], [with_libmemcached="no (libmemcached/memcached.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libmemcached" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libmemcached_cppflags"
+	LDFLAGS="$LDFLAGS $with_libmemcached_ldflags"
+
+	AC_CHECK_LIB(memcached, memcached_create, [with_libmemcached="yes"], [with_libmemcached="no (Symbol 'memcached_create' not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libmemcached" = "xyes"
+then
+	BUILD_WITH_LIBMEMCACHED_CPPFLAGS="$with_libmemcached_cppflags"
+	BUILD_WITH_LIBMEMCACHED_LDFLAGS="$with_libmemcached_ldflags"
+	BUILD_WITH_LIBMEMCACHED_LIBS="-lmemcached"
+	AC_SUBST(BUILD_WITH_LIBMEMCACHED_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMEMCACHED_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMEMCACHED_LIBS)
+	AC_DEFINE(HAVE_LIBMEMCACHED, 1, [Define if libmemcached is present and usable.])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBMEMCACHED, test "x$with_libmemcached" = "xyes")
+# }}}
+
+# --with-libmodbus {{{
+with_libmodbus_config=""
+with_libmodbus_cflags=""
+with_libmodbus_libs=""
+AC_ARG_WITH(libmodbus, [AS_HELP_STRING([--with-libmodbus@<:@=PREFIX@:>@], [Path to the modbus library.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libmodbus="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_libmodbus="use_pkgconfig"
+	else if test -d "$with_libmodbus/lib"
+	then
+		AC_MSG_NOTICE([Not checking for libmodbus: Manually configured])
+		with_libmodbus_cflags="-I$withval/include"
+		with_libmodbus_libs="-L$withval/lib -lmodbus"
+		with_libmodbus="yes"
+	fi; fi; fi
+],
+[with_libmodbus="use_pkgconfig"])
+
+# configure using pkg-config
+if test "x$with_libmodbus" = "xuse_pkgconfig"
+then
+	if test "x$PKG_CONFIG" = "x"
+	then
+		with_libmodbus="no (Don't have pkg-config)"
+	fi
+fi
+if test "x$with_libmodbus" = "xuse_pkgconfig"
+then
+	AC_MSG_NOTICE([Checking for libmodbus using $PKG_CONFIG])
+	$PKG_CONFIG --exists 'libmodbus' 2>/dev/null
+	if test $? -ne 0
+	then
+		with_libmodbus="no (pkg-config doesn't know libmodbus)"
+	fi
+fi
+if test "x$with_libmodbus" = "xuse_pkgconfig"
+then
+	with_libmodbus_cflags="`$PKG_CONFIG --cflags 'libmodbus'`"
+	if test $? -ne 0
+	then
+		with_libmodbus="no ($PKG_CONFIG failed)"
+	fi
+	with_libmodbus_libs="`$PKG_CONFIG --libs 'libmodbus'`"
+	if test $? -ne 0
+	then
+		with_libmodbus="no ($PKG_CONFIG failed)"
+	fi
+fi
+if test "x$with_libmodbus" = "xuse_pkgconfig"
+then
+	with_libmodbus="yes"
+fi
+
+# with_libmodbus_cflags and with_libmodbus_libs are set up now, let's do
+# the actual checks.
+if test "x$with_libmodbus" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libmodbus_cflags"
+
+	AC_CHECK_HEADERS(modbus/modbus.h, [], [with_libmodbus="no (modbus/modbus.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libmodbus" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $with_libmodbus_cflags"
+	LDFLAGS="$LDFLAGS $with_libmodbus_libs"
+
+	AC_CHECK_LIB(modbus, modbus_connect,
+		     [with_libmodbus="yes"],
+		     [with_libmodbus="no (symbol modbus_connect not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libmodbus" = "xyes"
+then
+	BUILD_WITH_LIBMODBUS_CFLAGS="$with_libmodbus_cflags"
+	BUILD_WITH_LIBMODBUS_LIBS="$with_libmodbus_libs"
+	AC_SUBST(BUILD_WITH_LIBMODBUS_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMODBUS_LIBS)
+fi
+# }}}
+
+# --with-libmongoc {{{
+AC_ARG_WITH(libmongoc, [AS_HELP_STRING([--with-libmongoc@<:@=PREFIX@:>@], [Path to libmongoc.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_libmongoc="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_libmongoc="no"
+ else
+	 with_libmongoc="yes"
+	 LIBMONGOC_CPPFLAGS="$LIBMONGOC_CPPFLAGS -I$withval/include"
+	 LIBMONGOC_LDFLAGS="$LIBMONGOC_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_libmongoc="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBMONGOC_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBMONGOC_LDFLAGS"
+
+if test "x$with_libmongoc" = "xyes"
+then
+	if test "x$LIBMONGOC_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libmongoc CPPFLAGS: $LIBMONGOC_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(mongo.h,
+	[with_libmongoc="yes"],
+	[with_libmongoc="no ('mongo.h' not found)"],
+[#if HAVE_STDINT_H
+# define MONGO_HAVE_STDINT 1
+#else
+# define MONGO_USE_LONG_LONG_INT 1
+#endif
+])
+fi
+if test "x$with_libmongoc" = "xyes"
+then
+	if test "x$LIBMONGOC_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([libmongoc LDFLAGS: $LIBMONGOC_LDFLAGS])
+	fi
+	AC_CHECK_LIB(mongoc, mongo_run_command,
+	[with_libmongoc="yes"],
+	[with_libmongoc="no (symbol 'mongo_run_command' not found)"])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libmongoc" = "xyes"
+then
+	BUILD_WITH_LIBMONGOC_CPPFLAGS="$LIBMONGOC_CPPFLAGS"
+	BUILD_WITH_LIBMONGOC_LDFLAGS="$LIBMONGOC_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBMONGOC_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMONGOC_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBMONGOC, test "x$with_libmongoc" = "xyes")
+# }}}
+
+# --with-libmysql {{{
+with_mysql_config="mysql_config"
+with_mysql_cflags=""
+with_mysql_libs=""
+AC_ARG_WITH(libmysql, [AS_HELP_STRING([--with-libmysql@<:@=PREFIX@:>@], [Path to libmysql.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libmysql="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_libmysql="yes"
+	else
+		if test -f "$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$with_libmysql" = "xyes"
+then
+	with_mysql_cflags=`$with_mysql_config --cflags 2>/dev/null`
+	mysql_config_status=$?
+
+	if test $mysql_config_status -ne 0
+	then
+		with_libmysql="no ($with_mysql_config failed)"
+	else
+		SAVE_CPPFLAGS="$CPPFLAGS"
+		CPPFLAGS="$CPPFLAGS $with_mysql_cflags"
+
+		have_mysql_h="no"
+		have_mysql_mysql_h="no"
+		AC_CHECK_HEADERS(mysql.h, [have_mysql_h="yes"])
+
+		if test "x$have_mysql_h" = "xno"
+		then
+			AC_CHECK_HEADERS(mysql/mysql.h, [have_mysql_mysql_h="yes"])
+		fi
+
+		if test "x$have_mysql_h$have_mysql_mysql_h" = "xnono"
+		then
+			with_libmysql="no (mysql.h not found)"
+		fi
+
+		CPPFLAGS="$SAVE_CPPFLAGS"
+	fi
+fi
+if test "x$with_libmysql" = "xyes"
+then
+	with_mysql_libs=`$with_mysql_config --libs_r 2>/dev/null`
+	mysql_config_status=$?
+
+	if test $mysql_config_status -ne 0
+	then
+		with_libmysql="no ($with_mysql_config failed)"
+	else
+		AC_CHECK_LIB(mysqlclient, mysql_init,
+		 [with_libmysql="yes"],
+		 [with_libmysql="no (symbol 'mysql_init' not found)"],
+		 [$with_mysql_libs])
+
+		AC_CHECK_LIB(mysqlclient, mysql_get_server_version,
+		 [with_libmysql="yes"],
+		 [with_libmysql="no (symbol 'mysql_get_server_version' not found)"],
+		 [$with_mysql_libs])
+	fi
+fi
+if test "x$with_libmysql" = "xyes"
+then
+	BUILD_WITH_LIBMYSQL_CFLAGS="$with_mysql_cflags"
+	BUILD_WITH_LIBMYSQL_LIBS="$with_mysql_libs"
+	AC_SUBST(BUILD_WITH_LIBMYSQL_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMYSQL_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBMYSQL, test "x$with_libmysql" = "xyes")
+# }}}
+
+# --with-libmnl {{{
+with_libmnl_cflags=""
+with_libmnl_libs=""
+AC_ARG_WITH(libmnl, [AS_HELP_STRING([--with-libmnl@<:@=PREFIX@:>@], [Path to libmnl.])],
+[
+ echo "libmnl: withval = $withval"
+ if test "x$withval" = "xyes"
+ then
+	 with_libmnl="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_libmnl="no"
+ else
+	 if test -d "$withval/include"
+	 then
+		 with_libmnl_cflags="-I$withval/include"
+		 with_libmnl_libs="-L$withval/lib -lmnl"
+		 with_libmnl="yes"
+	 else
+		 AC_MSG_ERROR("no such directory: $withval/include")
+	 fi
+ fi; fi
+],
+[
+ if test "x$ac_system" = "xLinux"
+ then
+	 with_libmnl="yes"
+ else
+	 with_libmnl="no (Linux only library)"
+ fi
+])
+if test "x$PKG_CONFIG" = "x"
+then
+	with_libmnl="no (Don't have pkg-config)"
+fi
+if test "x$with_libmnl" = "xyes"
+then
+	if $PKG_CONFIG --exists libmnl 2>/dev/null; then
+	  with_libmnl_cflags="$with_libmnl_ldflags `$PKG_CONFIG --cflags libmnl`"
+	  with_libmnl_libs="$with_libmnl_libs `$PKG_CONFIG --libs libmnl`"
+	fi
+
+	AC_CHECK_HEADERS(libmnl.h libmnl/libmnl.h,
+	[
+	 with_libmnl="yes"
+	 break
+	], [],
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>])
+	AC_CHECK_HEADERS(linux/gen_stats.h linux/pkt_sched.h, [], [],
+[#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>])
+
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+]],
+[[
+int retval = TCA_STATS2;
+return (retval);
+]]
+	)],
+	[AC_DEFINE([HAVE_TCA_STATS2], [1], [True if the enum-member TCA_STATS2 exists])])
+
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <stdio.h>
+#include <sys/types.h>
+#include <asm/types.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+]],
+[[
+int retval = TCA_STATS;
+return (retval);
+]]
+	)],
+	[AC_DEFINE([HAVE_TCA_STATS], 1, [True if the enum-member TCA_STATS exists])])
+fi
+if test "x$with_libmnl" = "xyes"
+then
+	AC_CHECK_MEMBERS([struct rtnl_link_stats64.tx_window_errors],
+	[AC_DEFINE(HAVE_RTNL_LINK_STATS64, 1, [Define if struct rtnl_link_stats64 exists and is usable.])],
+	[],
+	[
+	#include <linux/if_link.h>
+	])
+fi
+if test "x$with_libmnl" = "xyes"
+then
+	AC_CHECK_LIB(mnl, mnl_nlmsg_get_payload,
+		     [with_libmnl="yes"],
+		     [with_libmnl="no (symbol 'mnl_nlmsg_get_payload' not found)"],
+		     [$with_libmnl_libs])
+fi
+if test "x$with_libmnl" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBMNL, 1, [Define if libmnl is present and usable.])
+	BUILD_WITH_LIBMNL_CFLAGS="$with_libmnl_cflags"
+	BUILD_WITH_LIBMNL_LIBS="$with_libmnl_libs"
+	AC_SUBST(BUILD_WITH_LIBMNL_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBMNL_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBMNL, test "x$with_libmnl" = "xyes")
+# }}}
+
+# --with-libnetapp {{{
+AC_ARG_VAR([LIBNETAPP_CPPFLAGS], [C preprocessor flags required to build with libnetapp])
+AC_ARG_VAR([LIBNETAPP_LDFLAGS],  [Linker flags required to build with libnetapp])
+AC_ARG_VAR([LIBNETAPP_LIBS],     [Other libraries required to link against libnetapp])
+LIBNETAPP_CPPFLAGS="$LIBNETAPP_CPPFLAGS"
+LIBNETAPP_LDFLAGS="$LIBNETAPP_LDFLAGS"
+LIBNETAPP_LIBS="$LIBNETAPP_LIBS"
+AC_ARG_WITH(libnetapp, [AS_HELP_STRING([--with-libnetapp@<:@=PREFIX@:>@], [Path to libnetapp.])],
+[
+ if test -d "$withval"
+ then
+	 LIBNETAPP_CPPFLAGS="$LIBNETAPP_CPPFLAGS -I$withval/include"
+	 LIBNETAPP_LDFLAGS="$LIBNETAPP_LDFLAGS -L$withval/lib"
+	 with_libnetapp="yes"
+ else
+	 with_libnetapp="$withval"
+ fi
+],
+[
+ with_libnetapp="yes"
+])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $LIBNETAPP_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBNETAPP_LDFLAGS"
+
+if test "x$with_libnetapp" = "xyes"
+then
+	if test "x$LIBNETAPP_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([netapp CPPFLAGS: $LIBNETAPP_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(netapp_api.h,
+		[with_libnetapp="yes"],
+		[with_libnetapp="no (netapp_api.h not found)"])
+fi
+
+if test "x$with_libnetapp" = "xyes"
+then
+	if test "x$LIBNETAPP_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([netapp LDFLAGS: $LIBNETAPP_LDFLAGS])
+	fi
+
+	if test "x$LIBNETAPP_LIBS" = "x"
+	then
+		LIBNETAPP_LIBS="-lpthread -lxml -ladt -lssl -lm -lcrypto -lz"
+	fi
+	AC_MSG_NOTICE([netapp LIBS: $LIBNETAPP_LIBS])
+
+	AC_CHECK_LIB(netapp, na_server_invoke_elem,
+		[with_libnetapp="yes"],
+		[with_libnetapp="no (symbol na_server_invoke_elem not found)"],
+		[$LIBNETAPP_LIBS])
+	LIBNETAPP_LIBS="-lnetapp $LIBNETAPP_LIBS"
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libnetapp" = "xyes"
+then
+	AC_DEFINE(HAVE_LIBNETAPP, 1, [Define to 1 if you have the netapp library (-lnetapp).])
+fi
+
+AC_SUBST(LIBNETAPP_CPPFLAGS)
+AC_SUBST(LIBNETAPP_LDFLAGS)
+AC_SUBST(LIBNETAPP_LIBS)
+AM_CONDITIONAL(BUILD_WITH_LIBNETAPP, test "x$with_libnetapp" = "xyes")
+# }}}
+
+# --with-libnetsnmp {{{
+with_snmp_config="net-snmp-config"
+with_snmp_cflags=""
+with_snmp_libs=""
+AC_ARG_WITH(libnetsnmp, [AS_HELP_STRING([--with-libnetsnmp@<:@=PREFIX@:>@], [Path to the Net-SNMPD library.])],
+[
+	if test "x$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_CPPFLAGS="$CPPFLAGS"
+		CPPFLAGS="$CPPFLAGS $with_snmp_cflags"
+
+		AC_CHECK_HEADERS(net-snmp/net-snmp-config.h, [], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])
+
+		CPPFLAGS="$SAVE_CPPFLAGS"
+	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$with_libnetsnmp" = "xyes")
+# }}}
+
+# --with-liboconfig {{{
+with_own_liboconfig="no"
+liboconfig_LDFLAGS="$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 {{{
+AC_ARG_WITH(liboping, [AS_HELP_STRING([--with-liboping@<:@=PREFIX@:>@], [Path to liboping.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_liboping="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_liboping="no"
+ else
+	 with_liboping="yes"
+	 LIBOPING_CPPFLAGS="$LIBOPING_CPPFLAGS -I$withval/include"
+	 LIBOPING_LDFLAGS="$LIBOPING_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_liboping="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBOPING_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBOPING_LDFLAGS"
+
+if test "x$with_liboping" = "xyes"
+then
+	if test "x$LIBOPING_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([liboping CPPFLAGS: $LIBOPING_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(oping.h,
+	[with_liboping="yes"],
+	[with_liboping="no (oping.h not found)"])
+fi
+if test "x$with_liboping" = "xyes"
+then
+	if test "x$LIBOPING_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([liboping LDFLAGS: $LIBOPING_LDFLAGS])
+	fi
+	AC_CHECK_LIB(oping, ping_construct,
+	[with_liboping="yes"],
+	[with_liboping="no (symbol 'ping_construct' not found)"])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_liboping" = "xyes"
+then
+	BUILD_WITH_LIBOPING_CPPFLAGS="$LIBOPING_CPPFLAGS"
+	BUILD_WITH_LIBOPING_LDFLAGS="$LIBOPING_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBOPING_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBOPING_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBOPING, test "x$with_liboping" = "xyes")
+# }}}
+
+# --with-oracle {{{
+with_oracle_cppflags=""
+with_oracle_libs=""
+AC_ARG_WITH(oracle, [AS_HELP_STRING([--with-oracle@<:@=ORACLE_HOME@:>@], [Path to Oracle.])],
+[
+	if test "x$withval" = "xyes"
+	then
+		if test "x$ORACLE_HOME" = "x"
+		then
+			AC_MSG_WARN([Use of the Oracle library has been forced, but the environment variable ORACLE_HOME is not set.])
+		fi
+		with_oracle="yes"
+	else if test "x$withval" = "xno"
+	then
+		with_oracle="no"
+	else
+		with_oracle="yes"
+		ORACLE_HOME="$withval"
+	fi; fi
+],
+[
+	if test "x$ORACLE_HOME" = "x"
+	then
+		with_oracle="no (ORACLE_HOME is not set)"
+	else
+		with_oracle="yes"
+	fi
+])
+if test "x$ORACLE_HOME" != "x"
+then
+	with_oracle_cppflags="-I$ORACLE_HOME/rdbms/public"
+
+	if test -e "$ORACLE_HOME/lib/ldflags"
+	then
+		with_oracle_libs=`cat "$ORACLE_HOME/lib/ldflags"`
+	fi
+	#with_oracle_libs="-L$ORACLE_HOME/lib $with_oracle_libs -lclntsh"
+	with_oracle_libs="-L$ORACLE_HOME/lib -lclntsh"
+fi
+if test "x$with_oracle" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_oracle_cppflags"
+
+	AC_CHECK_HEADERS(oci.h, [with_oracle="yes"], [with_oracle="no (oci.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_oracle" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LIBS="$LIBS"
+	CPPFLAGS="$CPPFLAGS $with_oracle_cppflags"
+	LIBS="$LIBS $with_oracle_libs"
+
+	AC_CHECK_FUNC(OCIEnvCreate, [with_oracle="yes"], [with_oracle="no (Symbol 'OCIEnvCreate' not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LIBS="$SAVE_LIBS"
+fi
+if test "x$with_oracle" = "xyes"
+then
+	BUILD_WITH_ORACLE_CFLAGS="$with_oracle_cppflags"
+	BUILD_WITH_ORACLE_LIBS="$with_oracle_libs"
+	AC_SUBST(BUILD_WITH_ORACLE_CFLAGS)
+	AC_SUBST(BUILD_WITH_ORACLE_LIBS)
+fi
+# }}}
+
+# --with-libowcapi {{{
+with_libowcapi_cppflags=""
+with_libowcapi_libs="-lowcapi"
+AC_ARG_WITH(libowcapi, [AS_HELP_STRING([--with-libowcapi@<:@=PREFIX@:>@], [Path to libowcapi.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_libowcapi_cppflags="-I$withval/include"
+		with_libowcapi_libs="-L$withval/lib -lowcapi"
+		with_libowcapi="yes"
+	else
+		with_libowcapi="$withval"
+	fi
+],
+[
+	with_libowcapi="yes"
+])
+if test "x$with_libowcapi" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$with_libowcapi_cppflags"
+
+	AC_CHECK_HEADERS(owcapi.h, [with_libowcapi="yes"], [with_libowcapi="no (owcapi.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libowcapi" = "xyes"
+then
+	SAVE_LDFLAGS="$LDFLAGS"
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	LDFLAGS="$with_libowcapi_libs"
+	CPPFLAGS="$with_libowcapi_cppflags"
+
+	AC_CHECK_LIB(owcapi, OW_get, [with_libowcapi="yes"], [with_libowcapi="no (libowcapi not found)"])
+
+	LDFLAGS="$SAVE_LDFLAGS"
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libowcapi" = "xyes"
+then
+	BUILD_WITH_LIBOWCAPI_CPPFLAGS="$with_libowcapi_cppflags"
+	BUILD_WITH_LIBOWCAPI_LIBS="$with_libowcapi_libs"
+	AC_SUBST(BUILD_WITH_LIBOWCAPI_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBOWCAPI_LIBS)
+fi
+# }}}
+
+# --with-libpcap {{{
+AC_ARG_WITH(libpcap, [AS_HELP_STRING([--with-libpcap@<:@=PREFIX@:>@], [Path to libpcap.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		LDFLAGS="$LDFLAGS -L$withval/lib"
+		CPPFLAGS="$CPPFLAGS -I$withval/include"
+		with_libpcap="yes"
+	else
+		with_libpcap="$withval"
+	fi
+],
+[
+	with_libpcap="yes"
+])
+if test "x$with_libpcap" = "xyes"
+then
+	AC_CHECK_LIB(pcap, pcap_open_live,
+	[
+		AC_DEFINE(HAVE_LIBPCAP, 1, [Define to 1 if you have the pcap library (-lpcap).])
+	], [with_libpcap="no (libpcap not found)"])
+fi
+if test "x$with_libpcap" = "xyes"
+then
+	AC_CHECK_HEADERS(pcap.h,,
+			 [with_libpcap="no (pcap.h not found)"])
+fi
+if test "x$with_libpcap" = "xyes"
+then
+	AC_CHECK_HEADERS(pcap-bpf.h,,
+			 [with_libpcap="no (pcap-bpf.h not found)"])
+fi
+if test "x$with_libpcap" = "xyes"
+then
+	AC_CACHE_CHECK([whether libpcap has PCAP_ERROR_IFACE_NOT_UP],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up],
+		       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <pcap.h>
+]]],
+[[[
+  int val = PCAP_ERROR_IFACE_NOT_UP;
+  return(val);
+]]]
+		       )],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up="yes"],
+		       [c_cv_libpcap_have_pcap_error_iface_not_up="no"]))
+fi
+if test "x$c_cv_libpcap_have_pcap_error_iface_not_up" != "xyes"
+then
+		with_libpcap="no (pcap.h misses PCAP_ERROR_IFACE_NOT_UP)"
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBPCAP, test "x$with_libpcap" = "xyes")
+# }}}
+
+# --with-libperl {{{
+perl_interpreter="perl"
+AC_ARG_WITH(libperl, [AS_HELP_STRING([--with-libperl@<:@=PREFIX@:>@], [Path to libperl.])],
+[
+	if test -f "$withval" && test -x "$withval"
+	then
+		perl_interpreter="$withval"
+		with_libperl="yes"
+	else if test "x$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"
+	else
+		with_libperl="$withval"
+	fi; fi
+],
+[
+	with_libperl="yes"
+])
+
+AC_MSG_CHECKING([for perl])
+perl_interpreter=`which "$perl_interpreter" 2> /dev/null`
+if test -x "$perl_interpreter"
+then
+	AC_MSG_RESULT([yes ($perl_interpreter)])
+else
+	perl_interpreter=""
+	AC_MSG_RESULT([no])
+fi
+
+AC_SUBST(PERL, "$perl_interpreter")
+
+if test "x$with_libperl" = "xyes" \
+	&& test -n "$perl_interpreter"
+then
+  SAVE_CFLAGS="$CFLAGS"
+  SAVE_LIBS="$LIBS"
+dnl ARCHFLAGS="" -> disable multi -arch on OSX (see Config_heavy.pl:fetch_string)
+  PERL_CFLAGS=`ARCHFLAGS="" $perl_interpreter -MExtUtils::Embed -e ccopts`
+  PERL_LIBS=`ARCHFLAGS="" $perl_interpreter -MExtUtils::Embed -e ldopts`
+  CFLAGS="$CFLAGS $PERL_CFLAGS"
+  LIBS="$LIBS $PERL_LIBS"
+
+  AC_CACHE_CHECK([for libperl],
+    [c_cv_have_libperl],
+    AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#define PERL_NO_GET_CONTEXT
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+]]],
+[[[
+       dTHX;
+       load_module (PERL_LOADMOD_NOIMPORT,
+			 newSVpv ("Collectd::Plugin::FooBar", 24),
+			 Nullsv);
+]]]
+      )],
+      [c_cv_have_libperl="yes"],
+      [c_cv_have_libperl="no"]
+    )
+  )
+
+  if test "x$c_cv_have_libperl" = "xyes"
+  then
+	  AC_DEFINE(HAVE_LIBPERL, 1, [Define if libperl is present and usable.])
+	  AC_SUBST(PERL_CFLAGS)
+	  AC_SUBST(PERL_LIBS)
+  else
+	  with_libperl="no"
+  fi
+
+  CFLAGS="$SAVE_CFLAGS"
+  LIBS="$SAVE_LIBS"
+else if test -z "$perl_interpreter"; then
+  with_libperl="no (no perl interpreter found)"
+  c_cv_have_libperl="no"
+fi; fi
+AM_CONDITIONAL(BUILD_WITH_LIBPERL, test "x$with_libperl" = "xyes")
+
+if test "x$with_libperl" = "xyes"
+then
+	SAVE_CFLAGS="$CFLAGS"
+	SAVE_LIBS="$LIBS"
+	CFLAGS="$CFLAGS $PERL_CFLAGS"
+	LIBS="$LIBS $PERL_LIBS"
+
+	AC_CACHE_CHECK([if perl supports ithreads],
+		[c_cv_have_perl_ithreads],
+		AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+
+#if !defined(USE_ITHREADS)
+# error "Perl does not support ithreads!"
+#endif /* !defined(USE_ITHREADS) */
+]]],
+[[[ ]]]
+			)],
+			[c_cv_have_perl_ithreads="yes"],
+			[c_cv_have_perl_ithreads="no"]
+		)
+	)
+
+	if test "x$c_cv_have_perl_ithreads" = "xyes"
+	then
+		AC_DEFINE(HAVE_PERL_ITHREADS, 1, [Define if Perl supports ithreads.])
+	fi
+
+	CFLAGS="$SAVE_CFLAGS"
+	LIBS="$SAVE_LIBS"
+fi
+
+if test "x$with_libperl" = "xyes"
+then
+	SAVE_CFLAGS="$CFLAGS"
+	SAVE_LIBS="$LIBS"
+	# trigger an error if Perl_load_module*() uses __attribute__nonnull__(3)
+	# (see issues #41 and #42)
+	CFLAGS="$CFLAGS $PERL_CFLAGS -Wall -Werror"
+	LIBS="$LIBS $PERL_LIBS"
+
+	AC_CACHE_CHECK([for broken Perl_load_module()],
+		[c_cv_have_broken_perl_load_module],
+		AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#define PERL_NO_GET_CONTEXT
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+]]],
+[[[
+			 dTHX;
+			 load_module (PERL_LOADMOD_NOIMPORT,
+			     newSVpv ("Collectd::Plugin::FooBar", 24),
+			     Nullsv);
+]]]
+			)],
+			[c_cv_have_broken_perl_load_module="no"],
+			[c_cv_have_broken_perl_load_module="yes"]
+		)
+	)
+
+	CFLAGS="$SAVE_CFLAGS"
+	LIBS="$SAVE_LIBS"
+fi
+AM_CONDITIONAL(HAVE_BROKEN_PERL_LOAD_MODULE,
+		test "x$c_cv_have_broken_perl_load_module" = "xyes")
+
+if test "x$with_libperl" = "xyes"
+then
+	SAVE_CFLAGS="$CFLAGS"
+	SAVE_LIBS="$LIBS"
+	CFLAGS="$CFLAGS $PERL_CFLAGS"
+	LIBS="$LIBS $PERL_LIBS"
+
+	AC_CHECK_MEMBER(
+		[struct mgvtbl.svt_local],
+		[have_struct_mgvtbl_svt_local="yes"],
+		[have_struct_mgvtbl_svt_local="no"],
+		[
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+		])
+
+	if test "x$have_struct_mgvtbl_svt_local" = "xyes"
+	then
+		AC_DEFINE(HAVE_PERL_STRUCT_MGVTBL_SVT_LOCAL, 1,
+				  [Define if Perl's struct mgvtbl has member svt_local.])
+	fi
+
+	CFLAGS="$SAVE_CFLAGS"
+	LIBS="$SAVE_LIBS"
+fi
+# }}}
+
+# --with-libpq {{{
+with_pg_config="pg_config"
+with_libpq_includedir=""
+with_libpq_libdir=""
+with_libpq_cppflags=""
+with_libpq_ldflags=""
+AC_ARG_WITH(libpq, [AS_HELP_STRING([--with-libpq@<:@=PREFIX@:>@],
+	[Path to libpq.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libpq="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_libpq="yes"
+	else
+		if test -f "$withval" && test -x "$withval";
+		then
+			with_pg_config="$withval"
+		else if test -x "$withval/bin/pg_config"
+		then
+			with_pg_config="$withval/bin/pg_config"
+		fi; fi
+		with_libpq="yes"
+	fi; fi
+],
+[
+	with_libpq="yes"
+])
+if test "x$with_libpq" = "xyes"
+then
+	with_libpq_includedir=`$with_pg_config --includedir 2> /dev/null`
+	pg_config_status=$?
+
+	if test $pg_config_status -eq 0
+	then
+		if test -n "$with_libpq_includedir"; then
+			for dir in $with_libpq_includedir; do
+				with_libpq_cppflags="$with_libpq_cppflags -I$dir"
+			done
+		fi
+	else
+		AC_MSG_WARN([$with_pg_config returned with status $pg_config_status])
+	fi
+
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libpq_cppflags"
+
+	AC_CHECK_HEADERS(libpq-fe.h, [],
+		[with_libpq="no (libpq-fe.h not found)"], [])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libpq" = "xyes"
+then
+	with_libpq_libdir=`$with_pg_config --libdir 2> /dev/null`
+	pg_config_status=$?
+
+	if test $pg_config_status -eq 0
+	then
+		if test -n "$with_libpq_libdir"; then
+			for dir in $with_libpq_libdir; do
+				with_libpq_ldflags="$with_libpq_ldflags -L$dir"
+			done
+		fi
+	else
+		AC_MSG_WARN([$with_pg_config returned with status $pg_config_status])
+	fi
+
+	SAVE_LDFLAGS="$LDFLAGS"
+	LDFLAGS="$LDFLAGS $with_libpq_ldflags"
+
+	AC_CHECK_LIB(pq, PQconnectdb,
+		[with_libpq="yes"],
+		[with_libpq="no (symbol 'PQconnectdb' not found)"])
+
+	AC_CHECK_LIB(pq, PQserverVersion,
+		[with_libpq="yes"],
+		[with_libpq="no (symbol 'PQserverVersion' not found)"])
+
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libpq" = "xyes"
+then
+	BUILD_WITH_LIBPQ_CPPFLAGS="$with_libpq_cppflags"
+	BUILD_WITH_LIBPQ_LDFLAGS="$with_libpq_ldflags"
+	AC_SUBST(BUILD_WITH_LIBPQ_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBPQ_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBPQ, test "x$with_libpq" = "xyes")
+# }}}
+
+# --with-libpthread {{{
+AC_ARG_WITH(libpthread, [AS_HELP_STRING([--with-libpthread=@<:@=PREFIX@:>@], [Path to libpthread.])],
+[	if test "x$withval" != "xno" \
+		&& test "x$withval" != "xyes"
+	then
+		LDFLAGS="$LDFLAGS -L$withval/lib"
+		CPPFLAGS="$CPPFLAGS -I$withval/include"
+		with_libpthread="yes"
+	else
+		if test "x$withval" = "xno"
+		then
+			with_libpthread="no (disabled)"
+		fi
+	fi
+], [with_libpthread="yes"])
+if test "x$with_libpthread" = "xyes"
+then
+	AC_CHECK_LIB(pthread, pthread_create, [with_libpthread="yes"], [with_libpthread="no (libpthread not found)"], [])
+fi
+
+if test "x$with_libpthread" = "xyes"
+then
+	AC_CHECK_HEADERS(pthread.h,, [with_libpthread="no (pthread.h not found)"])
+fi
+if test "x$with_libpthread" = "xyes"
+then
+	collect_pthread=1
+else
+	collect_pthread=0
+fi
+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")
+# }}}
+
+# --with-python {{{
+with_python_prog=""
+with_python_path="$PATH"
+AC_ARG_WITH(python, [AS_HELP_STRING([--with-python@<:@=PREFIX@:>@], [Path to the python interpreter.])],
+[
+ if test "x$withval" = "xyes" || test "x$withval" = "xno"
+ then
+	 with_python="$withval"
+ else if test -x "$withval"
+ then
+	 with_python_prog="$withval"
+	 with_python_path="`dirname \"$withval\"`$PATH_SEPARATOR$with_python_path"
+	 with_python="yes"
+ else if test -d "$withval"
+ then
+	 with_python_path="$withval$PATH_SEPARATOR$with_python_path"
+	 with_python="yes"
+ else
+	 AC_MSG_WARN([Argument not recognized: $withval])
+ fi; fi; fi
+], [with_python="yes"])
+
+SAVE_PATH="$PATH"
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+SAVE_LIBS="$LIBS"
+
+PATH="$with_python_path"
+
+if test "x$with_python" = "xyes" && test "x$with_python_prog" = "x"
+then
+	AC_MSG_CHECKING([for python])
+	with_python_prog="`which python 2>/dev/null`"
+	if test "x$with_python_prog" = "x"
+	then
+		AC_MSG_RESULT([not found])
+		with_python="no (interpreter not found)"
+	else
+		AC_MSG_RESULT([$with_python_prog])
+	fi
+fi
+
+if test "x$with_python" = "xyes"
+then
+	AC_MSG_CHECKING([for Python CPPFLAGS])
+	python_include_path=`echo "import distutils.sysconfig;import sys;sys.stdout.write(distutils.sysconfig.get_python_inc())" | "$with_python_prog" 2>&1`
+	python_config_status=$?
+
+	if test "$python_config_status" -ne 0 || test "x$python_include_path" = "x"
+	then
+		AC_MSG_RESULT([failed with status $python_config_status (output: $python_include_path)])
+		with_python="no"
+	else
+		AC_MSG_RESULT([$python_include_path])
+	fi
+fi
+
+if test "x$with_python" = "xyes"
+then
+	CPPFLAGS="-I$python_include_path $CPPFLAGS"
+	AC_CHECK_HEADERS(Python.h,
+			 [with_python="yes"],
+			 [with_python="no ('Python.h' not found)"])
+fi
+
+if test "x$with_python" = "xyes"
+then
+	AC_MSG_CHECKING([for Python LDFLAGS])
+	python_library_path=`echo "import distutils.sysconfig;import sys;sys.stdout.write(distutils.sysconfig.get_config_vars(\"LIBDIR\").__getitem__(0))" | "$with_python_prog" 2>&1`
+	python_config_status=$?
+
+	if test "$python_config_status" -ne 0 || test "x$python_library_path" = "x"
+	then
+		AC_MSG_RESULT([failed with status $python_config_status (output: $python_library_path)])
+		with_python="no"
+	else
+		AC_MSG_RESULT([$python_library_path])
+	fi
+fi
+
+if test "x$with_python" = "xyes"
+then
+	AC_MSG_CHECKING([for Python LIBS])
+	python_library_flags=`echo "import distutils.sysconfig;import sys;sys.stdout.write(distutils.sysconfig.get_config_vars(\"BLDLIBRARY\").__getitem__(0))" | "$with_python_prog" 2>&1`
+	python_config_status=$?
+
+	if test "$python_config_status" -ne 0 || test "x$python_library_flags" = "x"
+	then
+		AC_MSG_RESULT([failed with status $python_config_status (output: $python_library_flags)])
+		with_python="no"
+	else
+		AC_MSG_RESULT([$python_library_flags])
+	fi
+fi
+
+if test "x$with_python" = "xyes"
+then
+	LDFLAGS="-L$python_library_path $LDFLAGS"
+	LIBS="$python_library_flags $LIBS"
+
+	AC_CHECK_FUNC(PyObject_CallFunction,
+		      [with_python="yes"],
+		      [with_python="no (Symbol 'PyObject_CallFunction' not found)"])
+fi
+
+PATH="$SAVE_PATH"
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+LIBS="$SAVE_LIBS"
+
+if test "x$with_python" = "xyes"
+then
+	BUILD_WITH_PYTHON_CPPFLAGS="-I$python_include_path"
+	BUILD_WITH_PYTHON_LDFLAGS="-L$python_library_path"
+	BUILD_WITH_PYTHON_LIBS="$python_library_flags"
+	AC_SUBST(BUILD_WITH_PYTHON_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_PYTHON_LDFLAGS)
+	AC_SUBST(BUILD_WITH_PYTHON_LIBS)
+fi
+# }}} --with-python
+
+# --with-librabbitmq {{{
+with_librabbitmq_cppflags=""
+with_librabbitmq_ldflags=""
+AC_ARG_WITH(librabbitmq, [AS_HELP_STRING([--with-librabbitmq@<:@=PREFIX@:>@], [Path to librabbitmq.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_librabbitmq_cppflags="-I$withval/include"
+		with_librabbitmq_ldflags="-L$withval/lib"
+		with_librabbitmq="yes"
+	else
+		with_librabbitmq="$withval"
+	fi
+],
+[
+	with_librabbitmq="yes"
+])
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $with_librabbitmq_cppflags"
+LDFLAGS="$LDFLAGS $with_librabbitmq_ldflags"
+if test "x$with_librabbitmq" = "xyes"
+then
+	AC_CHECK_HEADERS(amqp.h, [with_librabbitmq="yes"], [with_librabbitmq="no (amqp.h not found)"])
+fi
+if test "x$with_librabbitmq" = "xyes"
+then
+	# librabbitmq up to version 0.9.1 provides "library_errno", later
+	# versions use "library_error". The library does not provide a version
+	# macro :( Use "AC_CHECK_MEMBERS" (plural) for automatic defines.
+	AC_CHECK_MEMBERS([amqp_rpc_reply_t.library_errno],,,
+			 [
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#if HAVE_STDIO_H
+# include <stdio.h>
+#endif
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#include <amqp.h>
+                         ])
+fi
+if test "x$with_librabbitmq" = "xyes"
+then
+	AC_CHECK_LIB(rabbitmq, amqp_basic_publish, [with_librabbitmq="yes"], [with_librabbitmq="no (Symbol 'amqp_basic_publish' not found)"])
+fi
+if test "x$with_librabbitmq" = "xyes"
+then
+	BUILD_WITH_LIBRABBITMQ_CPPFLAGS="$with_librabbitmq_cppflags"
+	BUILD_WITH_LIBRABBITMQ_LDFLAGS="$with_librabbitmq_ldflags"
+	BUILD_WITH_LIBRABBITMQ_LIBS="-lrabbitmq"
+	AC_SUBST(BUILD_WITH_LIBRABBITMQ_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBRABBITMQ_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBRABBITMQ_LIBS)
+	AC_DEFINE(HAVE_LIBRABBITMQ, 1, [Define if librabbitmq is present and usable.])
+fi
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+AM_CONDITIONAL(BUILD_WITH_LIBRABBITMQ, test "x$with_librabbitmq" = "xyes")
+
+with_amqp_tcp_socket="no"
+if test "x$with_librabbitmq" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	SAVE_LIBS="$LIBS"
+	CPPFLAGS="$CPPFLAGS $with_librabbitmq_cppflags"
+	LDFLAGS="$LDFLAGS $with_librabbitmq_ldflags"
+	LIBS="-lrabbitmq"
+
+	AC_CHECK_HEADERS(amqp_tcp_socket.h amqp_socket.h)
+	AC_CHECK_FUNC(amqp_tcp_socket_new, [with_amqp_tcp_socket="yes"], [with_amqp_tcp_socket="no"])
+	if test "x$with_amqp_tcp_socket" = "xyes"
+	then
+		AC_DEFINE(HAVE_AMQP_TCP_SOCKET, 1,
+				[Define if librabbitmq provides the new TCP socket interface.])
+	fi
+
+	AC_CHECK_DECLS(amqp_socket_close,
+				[amqp_socket_close_decl="yes"], [amqp_socket_close_decl="no"],
+				[[
+#include <amqp.h>
+#ifdef HAVE_AMQP_TCP_SOCKET_H
+# include <amqp_tcp_socket.h>
+#endif
+#ifdef HAVE_AMQP_SOCKET_H
+# include <amqp_socket.h>
+#endif
+				]])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+	LIBS="$SAVE_LIBS"
+fi
+# }}}
+
+# --with-librdkafka {{{
+AC_ARG_WITH(librdkafka, [AS_HELP_STRING([--with-librdkafka@<:@=PREFIX@:>@], [Path to librdkafka.])],
+[
+  if test "x$withval" != "xno" && test "x$withval" != "xyes"
+  then
+    with_librdkafka_cppflags="-I$withval/include"
+    with_librdkafka_ldflags="-L$withval/lib"
+    with_librdkafka_rpath="$withval/lib"
+    with_librdkafka="yes"
+  else
+    with_librdkafka="$withval"
+  fi
+],
+[
+  with_librdkafka="yes"
+])
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $with_librdkafka_cppflags"
+LDFLAGS="$LDFLAGS $with_librdkafka_ldflags"
+
+if test "x$with_librdkafka" = "xyes"
+then
+	AC_CHECK_HEADERS(librdkafka/rdkafka.h, [with_librdkafka="yes"], [with_librdkafka="no (librdkafka/rdkafka.h not found)"])
+fi
+
+if test "x$with_librdkafka" = "xyes"
+then
+	AC_CHECK_LIB(rdkafka, rd_kafka_new, [with_librdkafka="yes"], [with_librdkafka="no (Symbol 'rd_kafka_new' not found)"])
+  AC_CHECK_LIB(rdkafka, rd_kafka_conf_set_log_cb, [with_librdkafka_log_cb="yes"], [with_librdkafka_log_cb="no"])
+  AC_CHECK_LIB(rdkafka, rd_kafka_set_logger, [with_librdkafka_logger="yes"], [with_librdkafka_logger="no"])
+fi
+if test "x$with_librdkafka" = "xyes"
+then
+	BUILD_WITH_LIBRDKAFKA_CPPFLAGS="$with_librdkafka_cppflags"
+	BUILD_WITH_LIBRDKAFKA_LDFLAGS="$with_librdkafka_ldflags"
+	if test "x$with_librdkafka_rpath" != "x"
+	then
+		BUILD_WITH_LIBRDKAFKA_LIBS="-Wl,-rpath,$with_librdkafka_rpath -lrdkafka"
+	else
+		BUILD_WITH_LIBRDKAFKA_LIBS="-lrdkafka"
+	fi
+	AC_SUBST(BUILD_WITH_LIBRDKAFKA_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBRDKAFKA_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBRDKAFKA_LIBS)
+	AC_DEFINE(HAVE_LIBRDKAFKA, 1, [Define if librdkafka is present and usable.])
+  if test "x$with_librdkafka_log_cb" = "xyes"
+  then
+        AC_DEFINE(HAVE_LIBRDKAFKA_LOG_CB, 1, [Define if librdkafka log facility is present and usable.])
+  fi
+  if test "x$with_librdkafka_logger" = "xyes"
+  then
+        AC_DEFINE(HAVE_LIBRDKAFKA_LOGGER, 1, [Define if librdkafka log facility is present and usable.])
+  fi
+fi
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+AM_CONDITIONAL(BUILD_WITH_LIBRDKAFKA, test "x$with_librdkafka" = "xyes")
+
+# }}}
+
+# --with-librouteros {{{
+AC_ARG_WITH(librouteros, [AS_HELP_STRING([--with-librouteros@<:@=PREFIX@:>@], [Path to librouteros.])],
+[
+ if test "x$withval" = "xyes"
+ then
+	 with_librouteros="yes"
+ else if test "x$withval" = "xno"
+ then
+	 with_librouteros="no"
+ else
+	 with_librouteros="yes"
+	 LIBROUTEROS_CPPFLAGS="$LIBROUTEROS_CPPFLAGS -I$withval/include"
+	 LIBROUTEROS_LDFLAGS="$LIBROUTEROS_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_librouteros="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBROUTEROS_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBROUTEROS_LDFLAGS"
+
+if test "x$with_librouteros" = "xyes"
+then
+	if test "x$LIBROUTEROS_CPPFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([librouteros CPPFLAGS: $LIBROUTEROS_CPPFLAGS])
+	fi
+	AC_CHECK_HEADERS(routeros_api.h,
+	[with_librouteros="yes"],
+	[with_librouteros="no (routeros_api.h not found)"])
+fi
+if test "x$with_librouteros" = "xyes"
+then
+	if test "x$LIBROUTEROS_LDFLAGS" != "x"
+	then
+		AC_MSG_NOTICE([librouteros LDFLAGS: $LIBROUTEROS_LDFLAGS])
+	fi
+	AC_CHECK_LIB(routeros, ros_interface,
+	[with_librouteros="yes"],
+	[with_librouteros="no (symbol 'ros_interface' not found)"])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_librouteros" = "xyes"
+then
+	BUILD_WITH_LIBROUTEROS_CPPFLAGS="$LIBROUTEROS_CPPFLAGS"
+	BUILD_WITH_LIBROUTEROS_LDFLAGS="$LIBROUTEROS_LDFLAGS"
+	AC_SUBST(BUILD_WITH_LIBROUTEROS_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBROUTEROS_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBROUTEROS, test "x$with_librouteros" = "xyes")
+# }}}
+
+# --with-librrd {{{
+# AC_ARG_WITH (package, help-string, [action-if-given], [action-if-not-given])
+librrd_cflags=""
+librrd_ldflags=""
+librrd_threadsafe="yes"
+librrd_rrdc_update="no"
+AC_ARG_WITH(librrd, [AS_HELP_STRING([--with-librrd@<:@=PREFIX@:>@], [Path to rrdtool.])],
+[	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		librrd_cflags="-I$withval/include"
+		librrd_ldflags="-L$withval/lib"
+		with_librrd="yes"
+	else
+		with_librrd="$withval"
+	fi
+], [with_librrd="yes"])
+if test "x$with_librrd" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $librrd_cflags"
+	LDFLAGS="$LDFLAGS $librrd_ldflags"
+
+	AC_CHECK_HEADERS(rrd.h,, [with_librrd="no (rrd.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_librrd" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $librrd_cflags"
+	LDFLAGS="$LDFLAGS $librrd_ldflags"
+
+	AC_CHECK_LIB(rrd_th, rrd_update_r,
+	[with_librrd="yes"
+	 librrd_ldflags="$librrd_ldflags -lrrd_th -lm"
+	],
+	[librrd_threadsafe="no"
+	 AC_CHECK_LIB(rrd, rrd_update,
+	 [with_librrd="yes"
+	  librrd_ldflags="$librrd_ldflags -lrrd -lm"
+	 ],
+	 [with_librrd="no (symbol 'rrd_update' not found)"],
+	 [-lm])
+	],
+	[-lm])
+
+	if test "x$librrd_threadsafe" = "xyes"
+	then
+		AC_CHECK_LIB(rrd_th, rrdc_update, [librrd_rrdc_update="yes"], [librrd_rrdc_update="no"])
+	else
+		AC_CHECK_LIB(rrd, rrdc_update, [librrd_rrdc_update="yes"], [librrd_rrdc_update="no"])
+	fi
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_librrd" = "xyes"
+then
+	BUILD_WITH_LIBRRD_CFLAGS="$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
+# }}}
+
+# --with-libsensors {{{
+with_sensors_cflags=""
+with_sensors_ldflags=""
+AC_ARG_WITH(libsensors, [AS_HELP_STRING([--with-libsensors@<:@=PREFIX@:>@], [Path to lm_sensors.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libsensors="no"
+	else
+		with_libsensors="yes"
+		if test "x$withval" != "xyes"
+		then
+			with_sensors_cflags="-I$withval/include"
+			with_sensors_ldflags="-L$withval/lib"
+			with_libsensors="yes"
+		fi
+	fi
+],
+[
+	if test "x$ac_system" = "xLinux"
+	then
+		with_libsensors="yes"
+	else
+		with_libsensors="no (Linux only library)"
+	fi
+])
+if test "x$with_libsensors" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_sensors_cflags"
+
+#	AC_CHECK_HEADERS(sensors/sensors.h,
+#	[
+#		AC_DEFINE(HAVE_SENSORS_SENSORS_H, 1, [Define to 1 if you have the <sensors/sensors.h> header file.])
+#	],
+#	[with_libsensors="no (sensors/sensors.h not found)"])
+	AC_CHECK_HEADERS(sensors/sensors.h, [], [with_libsensors="no (sensors/sensors.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libsensors" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_sensors_cflags"
+	LDFLAGS="$LDFLAGS $with_sensors_ldflags"
+
+	AC_CHECK_LIB(sensors, sensors_init,
+	[
+		AC_DEFINE(HAVE_LIBSENSORS, 1, [Define to 1 if you have the sensors library (-lsensors).])
+	],
+	[with_libsensors="no (libsensors not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libsensors" = "xyes"
+then
+	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
+AM_CONDITIONAL(BUILD_WITH_LM_SENSORS, test "x$with_libsensors" = "xyes")
+# }}}
+
+# --with-libsigrok {{{
+with_libsigrok_cflags=""
+with_libsigrok_ldflags=""
+AC_ARG_WITH(libsigrok, [AS_HELP_STRING([--with-libsigrok@<:@=PREFIX@:>@], [Path to libsigrok.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libsigrok="no"
+	else
+		with_libsigrok="yes"
+		if test "x$withval" != "xyes"
+		then
+			with_libsigrok_cflags="-I$withval/include"
+			with_libsigrok_ldflags="-L$withval/lib"
+		fi
+	fi
+],[with_libsigrok="yes"])
+
+# libsigrok has a glib dependency
+if test "x$with_libsigrok" = "xyes"
+then
+m4_ifdef([AM_PATH_GLIB_2_0],
+	[
+	 AM_PATH_GLIB_2_0([2.28.0],
+	 	[with_libsigrok_cflags="$with_libsigrok_cflags $GLIB_CFLAGS"; with_libsigrok_ldflags="$with_libsigrok_ldflags $GLIB_LIBS"])
+	],
+	[
+	 with_libsigrok="no (glib not available)"
+	]
+)
+fi
+
+# libsigrok headers
+if test "x$with_libsigrok" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libsigrok_cflags"
+
+	AC_CHECK_HEADERS(libsigrok/libsigrok.h, [], [with_libsigrok="no (libsigrok/libsigrok.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+
+# libsigrok library
+if test "x$with_libsigrok" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libsigrok_cflags"
+	LDFLAGS="$LDFLAGS $with_libsigrok_ldflags"
+
+	AC_CHECK_LIB(sigrok, sr_init,
+	[
+		AC_DEFINE(HAVE_LIBSIGROK, 1, [Define to 1 if you have the sigrok library (-lsigrok).])
+	],
+	[with_libsigrok="no (libsigrok not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libsigrok" = "xyes"
+then
+	BUILD_WITH_LIBSIGROK_CFLAGS="$with_libsigrok_cflags"
+	BUILD_WITH_LIBSIGROK_LDFLAGS="$with_libsigrok_ldflags"
+	AC_SUBST(BUILD_WITH_LIBSIGROK_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBSIGROK_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBSIGROK, test "x$with_libsigrok" = "xyes")
+# }}}
+
+# --with-libstatgrab {{{
+with_libstatgrab_cflags=""
+with_libstatgrab_ldflags=""
+AC_ARG_WITH(libstatgrab, [AS_HELP_STRING([--with-libstatgrab@<:@=PREFIX@:>@], [Path to libstatgrab.])],
+[
+ if test "x$withval" != "xno" \
+   && test "x$withval" != "xyes"
+ then
+   with_libstatgrab_cflags="-I$withval/include"
+   with_libstatgrab_ldflags="-L$withval/lib -lstatgrab"
+   with_libstatgrab="yes"
+   with_libstatgrab_pkg_config="no"
+ else
+   with_libstatgrab="$withval"
+   with_libstatgrab_pkg_config="yes"
+ fi
+ ],
+[
+ with_libstatgrab="yes"
+ with_libstatgrab_pkg_config="yes"
+])
+
+if test "x$with_libstatgrab" = "xyes" \
+  && test "x$with_libstatgrab_pkg_config" = "xyes"
+then
+  if test "x$PKG_CONFIG" != "x"
+  then
+    AC_MSG_CHECKING([pkg-config for libstatgrab])
+    temp_result="found"
+    $PKG_CONFIG --exists libstatgrab 2>/dev/null
+    if test "$?" != "0"
+    then
+      with_libstatgrab_pkg_config="no"
+      with_libstatgrab="no (pkg-config doesn't know libstatgrab)"
+      temp_result="not found"
+    fi
+    AC_MSG_RESULT([$temp_result])
+  else
+    AC_MSG_NOTICE([pkg-config not available, trying to guess flags for the statgrab library.])
+    with_libstatgrab_pkg_config="no"
+    with_libstatgrab_ldflags="$with_libstatgrab_ldflags -lstatgrab"
+  fi
+fi
+
+if test "x$with_libstatgrab" = "xyes" \
+  && test "x$with_libstatgrab_pkg_config" = "xyes" \
+  && test "x$with_libstatgrab_cflags" = "x"
+then
+  AC_MSG_CHECKING([for libstatgrab CFLAGS])
+  temp_result="`$PKG_CONFIG --cflags libstatgrab`"
+  if test "$?" = "0"
+  then
+    with_libstatgrab_cflags="$temp_result"
+  else
+    with_libstatgrab="no ($PKG_CONFIG --cflags libstatgrab failed)"
+    temp_result="$PKG_CONFIG --cflags libstatgrab failed"
+  fi
+  AC_MSG_RESULT([$temp_result])
+fi
+
+if test "x$with_libstatgrab" = "xyes" \
+  && test "x$with_libstatgrab_pkg_config" = "xyes" \
+  && test "x$with_libstatgrab_ldflags" = "x"
+then
+  AC_MSG_CHECKING([for libstatgrab LDFLAGS])
+  temp_result="`$PKG_CONFIG --libs libstatgrab`"
+  if test "$?" = "0"
+  then
+    with_libstatgrab_ldflags="$temp_result"
+  else
+    with_libstatgrab="no ($PKG_CONFIG --libs libstatgrab failed)"
+    temp_result="$PKG_CONFIG --libs libstatgrab failed"
+  fi
+  AC_MSG_RESULT([$temp_result])
+fi
+
+if test "x$with_libstatgrab" = "xyes"
+then
+  SAVE_CPPFLAGS="$CPPFLAGS"
+  CPPFLAGS="$CPPFLAGS $with_libstatgrab_cflags"
+
+  AC_CHECK_HEADERS(statgrab.h,
+		   [with_libstatgrab="yes"],
+		   [with_libstatgrab="no (statgrab.h not found)"])
+
+  CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+
+if test "x$with_libstatgrab" = "xyes"
+then
+  SAVE_CFLAGS="$CFLAGS"
+  SAVE_LDFLAGS="$LDFLAGS"
+
+  CFLAGS="$CFLAGS $with_libstatgrab_cflags"
+  LDFLAGS="$LDFLAGS $with_libstatgrab_ldflags"
+
+  AC_CHECK_LIB(statgrab, sg_init,
+	       [with_libstatgrab="yes"],
+	       [with_libstatgrab="no (symbol sg_init not found)"])
+
+  CFLAGS="$SAVE_CFLAGS"
+  LDFLAGS="$SAVE_LDFLAGS"
+fi
+
+if test "x$with_libstatgrab" = "xyes"
+then
+  SAVE_CFLAGS="$CFLAGS"
+  SAVE_LIBS="$LIBS"
+
+  CFLAGS="$CFLAGS $with_libstatgrab_cflags"
+  LDFLAGS="$LDFLAGS $with_libstatgrab_ldflags"
+  LIBS="-lstatgrab $LIBS"
+
+  AC_CACHE_CHECK([if libstatgrab >= 0.90],
+          [c_cv_have_libstatgrab_0_90],
+          AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdio.h>
+#include <statgrab.h>
+]]],
+[[[
+      if (sg_init()) return 0;
+]]]
+    )],
+    [c_cv_have_libstatgrab_0_90="no"],
+    [c_cv_have_libstatgrab_0_90="yes"]
+          )
+  )
+
+  CFLAGS="$SAVE_CFLAGS"
+  LDFLAGS="$SAVE_LDFLAGS"
+  LIBS="$SAVE_LIBS"
+fi
+
+AM_CONDITIONAL(BUILD_WITH_LIBSTATGRAB, test "x$with_libstatgrab" = "xyes")
+if test "x$with_libstatgrab" = "xyes"
+then
+  AC_DEFINE(HAVE_LIBSTATGRAB, 1, [Define to 1 if you have the 'statgrab' library (-lstatgrab)])
+  BUILD_WITH_LIBSTATGRAB_CFLAGS="$with_libstatgrab_cflags"
+  BUILD_WITH_LIBSTATGRAB_LDFLAGS="$with_libstatgrab_ldflags"
+  AC_SUBST(BUILD_WITH_LIBSTATGRAB_CFLAGS)
+  AC_SUBST(BUILD_WITH_LIBSTATGRAB_LDFLAGS)
+  if test "x$c_cv_have_libstatgrab_0_90" = "xyes"
+  then
+        AC_DEFINE(HAVE_LIBSTATGRAB_0_90, 1, [Define to 1 if libstatgrab version >= 0.90])
+  fi
+fi
+# }}}
+
+# --with-libtokyotyrant {{{
+with_libtokyotyrant_cppflags=""
+with_libtokyotyrant_ldflags=""
+with_libtokyotyrant_libs=""
+AC_ARG_WITH(libtokyotyrant, [AS_HELP_STRING([--with-libtokyotyrant@<:@=PREFIX@:>@], [Path to libtokyotyrant.])],
+[
+  if test "x$withval" = "xno"
+  then
+    with_libtokyotyrant="no"
+  else if test "x$withval" = "xyes"
+  then
+    with_libtokyotyrant="yes"
+  else
+    with_libtokyotyrant_cppflags="-I$withval/include"
+    with_libtokyotyrant_ldflags="-L$withval/include"
+    with_libtokyotyrant_libs="-ltokyotyrant"
+    with_libtokyotyrant="yes"
+  fi; fi
+],
+[
+  with_libtokyotyrant="yes"
+])
+
+if test "x$with_libtokyotyrant" = "xyes"
+then
+  if $PKG_CONFIG --exists tokyotyrant
+  then
+    with_libtokyotyrant_cppflags="$with_libtokyotyrant_cppflags `$PKG_CONFIG --cflags tokyotyrant`"
+    with_libtokyotyrant_ldflags="$with_libtokyotyrant_ldflags `$PKG_CONFIG --libs-only-L tokyotyrant`"
+    with_libtokyotyrant_libs="$with_libtokyotyrant_libs `$PKG_CONFIG --libs-only-l tokyotyrant`"
+  fi
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+CPPFLAGS="$CPPFLAGS $with_libtokyotyrant_cppflags"
+LDFLAGS="$LDFLAGS $with_libtokyotyrant_ldflags"
+
+if test "x$with_libtokyotyrant" = "xyes"
+then
+  AC_CHECK_HEADERS(tcrdb.h,
+  [
+          AC_DEFINE(HAVE_TCRDB_H, 1,
+                    [Define to 1 if you have the <tcrdb.h> header file.])
+  ], [with_libtokyotyrant="no (tcrdb.h not found)"])
+fi
+
+if test "x$with_libtokyotyrant" = "xyes"
+then
+  AC_CHECK_LIB(tokyotyrant, tcrdbrnum,
+  [
+          AC_DEFINE(HAVE_LIBTOKYOTYRANT, 1,
+                    [Define to 1 if you have the tokyotyrant library (-ltokyotyrant).])
+  ],
+  [with_libtokyotyrant="no (symbol tcrdbrnum not found)"],
+  [$with_libtokyotyrant_libs])
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libtokyotyrant" = "xyes"
+then
+  BUILD_WITH_LIBTOKYOTYRANT_CPPFLAGS="$with_libtokyotyrant_cppflags"
+  BUILD_WITH_LIBTOKYOTYRANT_LDFLAGS="$with_libtokyotyrant_ldflags"
+  BUILD_WITH_LIBTOKYOTYRANT_LIBS="$with_libtokyotyrant_libs"
+  AC_SUBST(BUILD_WITH_LIBTOKYOTYRANT_CPPFLAGS)
+  AC_SUBST(BUILD_WITH_LIBTOKYOTYRANT_LDFLAGS)
+  AC_SUBST(BUILD_WITH_LIBTOKYOTYRANT_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBTOKYOTYRANT, test "x$with_libtokyotyrant" = "xyes")
+# }}}
+
+# --with-libudev {{{
+with_libudev_cflags=""
+with_libudev_ldflags=""
+AC_ARG_WITH(libudev, [AS_HELP_STRING([--with-libudev@<:@=PREFIX@:>@], [Path to libudev.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libudev="no"
+	else
+		with_libudev="yes"
+		if test "x$withval" != "xyes"
+		then
+			with_libudev_cflags="-I$withval/include"
+			with_libudev_ldflags="-L$withval/lib"
+			with_libudev="yes"
+		fi
+	fi
+],
+[
+	if test "x$ac_system" = "xLinux"
+	then
+		with_libudev="yes"
+	else
+		with_libudev="no (Linux only library)"
+	fi
+])
+if test "x$with_libudev" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libudev_cflags"
+
+	AC_CHECK_HEADERS(libudev.h, [], [with_libudev="no (libudev.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libudev" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libudev_cflags"
+	LDFLAGS="$LDFLAGS $with_libudev_ldflags"
+
+	AC_CHECK_LIB(udev, udev_new,
+	[
+		AC_DEFINE(HAVE_LIBUDEV, 1, [Define to 1 if you have the udev library (-ludev).])
+	],
+	[with_libudev="no (libudev not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libudev" = "xyes"
+then
+	BUILD_WITH_LIBUDEV_CFLAGS="$with_libudev_cflags"
+	BUILD_WITH_LIBUDEV_LDFLAGS="$with_libudev_ldflags"
+	AC_SUBST(BUILD_WITH_LIBUDEV_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBUDEV_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBUDEV, test "x$with_libudev" = "xyes")
+# }}}
+
+# --with-libupsclient {{{
+with_libupsclient_config=""
+with_libupsclient_cflags=""
+with_libupsclient_libs=""
+AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@], [Path to the upsclient library.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libupsclient="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_libupsclient="use_pkgconfig"
+	else
+		if test -x "$withval"
+		then
+			with_libupsclient_config="$withval"
+			with_libupsclient="use_libupsclient_config"
+		else if test -x "$withval/bin/libupsclient-config"
+		then
+			with_libupsclient_config="$withval/bin/libupsclient-config"
+			with_libupsclient="use_libupsclient_config"
+		else
+			AC_MSG_NOTICE([Not checking for libupsclient: Manually configured])
+			with_libupsclient_cflags="-I$withval/include"
+			with_libupsclient_libs="-L$withval/lib -lupsclient"
+			with_libupsclient="yes"
+		fi; fi
+	fi; fi
+],
+[with_libupsclient="use_pkgconfig"])
+
+# configure using libupsclient-config
+if test "x$with_libupsclient" = "xuse_libupsclient_config"
+then
+	AC_MSG_NOTICE([Checking for libupsclient using $with_libupsclient_config])
+	with_libupsclient_cflags="`$with_libupsclient_config --cflags`"
+	if test $? -ne 0
+	then
+		with_libupsclient="no ($with_libupsclient_config failed)"
+	fi
+	with_libupsclient_libs="`$with_libupsclient_config --libs`"
+	if test $? -ne 0
+	then
+		with_libupsclient="no ($with_libupsclient_config failed)"
+	fi
+fi
+if test "x$with_libupsclient" = "xuse_libupsclient_config"
+then
+	with_libupsclient="yes"
+fi
+
+# configure using pkg-config
+if test "x$with_libupsclient" = "xuse_pkgconfig"
+then
+	if test "x$PKG_CONFIG" = "x"
+	then
+		with_libupsclient="no (Don't have pkg-config)"
+	fi
+fi
+if test "x$with_libupsclient" = "xuse_pkgconfig"
+then
+	AC_MSG_NOTICE([Checking for libupsclient using $PKG_CONFIG])
+	$PKG_CONFIG --exists 'libupsclient' 2>/dev/null
+	if test $? -ne 0
+	then
+		with_libupsclient="no (pkg-config doesn't know libupsclient)"
+	fi
+fi
+if test "x$with_libupsclient" = "xuse_pkgconfig"
+then
+	with_libupsclient_cflags="`$PKG_CONFIG --cflags 'libupsclient'`"
+	if test $? -ne 0
+	then
+		with_libupsclient="no ($PKG_CONFIG failed)"
+	fi
+	with_libupsclient_libs="`$PKG_CONFIG --libs 'libupsclient'`"
+	if test $? -ne 0
+	then
+		with_libupsclient="no ($PKG_CONFIG failed)"
+	fi
+fi
+if test "x$with_libupsclient" = "xuse_pkgconfig"
+then
+	with_libupsclient="yes"
+fi
+
+# with_libupsclient_cflags and with_libupsclient_libs are set up now, let's do
+# the actual checks.
+if test "x$with_libupsclient" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libupsclient_cflags"
+
+	AC_CHECK_HEADERS(upsclient.h, [], [with_libupsclient="no (upsclient.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libupsclient" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $with_libupsclient_cflags"
+	LDFLAGS="$LDFLAGS $with_libupsclient_libs"
+
+	AC_CHECK_LIB(upsclient, upscli_connect,
+		     [with_libupsclient="yes"],
+		     [with_libupsclient="no (symbol upscli_connect not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libupsclient" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libupsclient_cflags"
+
+	AC_CHECK_TYPES([UPSCONN_t, UPSCONN], [], [],
+[#include <stdlib.h>
+#include <stdio.h>
+#include <upsclient.h>])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libupsclient" = "xyes"
+then
+	BUILD_WITH_LIBUPSCLIENT_CFLAGS="$with_libupsclient_cflags"
+	BUILD_WITH_LIBUPSCLIENT_LIBS="$with_libupsclient_libs"
+	AC_SUBST(BUILD_WITH_LIBUPSCLIENT_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBUPSCLIENT_LIBS)
+fi
+# }}}
+
+# --with-libxmms {{{
+with_xmms_config="xmms-config"
+with_xmms_cflags=""
+with_xmms_libs=""
+AC_ARG_WITH(libxmms, [AS_HELP_STRING([--with-libxmms@<:@=PREFIX@:>@], [Path to libxmms.])],
+[
+	if test "x$withval" != "xno" \
+		&& test "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")
+# }}}
+
+# --with-libyajl {{{
+with_libyajl_cppflags=""
+with_libyajl_ldflags=""
+AC_ARG_WITH(libyajl, [AS_HELP_STRING([--with-libyajl@<:@=PREFIX@:>@], [Path to libyajl.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_libyajl_cppflags="-I$withval/include"
+		with_libyajl_ldflags="-L$withval/lib"
+		with_libyajl="yes"
+	else
+		with_libyajl="$withval"
+	fi
+],
+[
+	with_libyajl="yes"
+])
+if test "x$with_libyajl" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libyajl_cppflags"
+
+	AC_CHECK_HEADERS(yajl/yajl_parse.h, [with_libyajl="yes"], [with_libyajl="no (yajl/yajl_parse.h not found)"])
+	AC_CHECK_HEADERS(yajl/yajl_version.h)
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libyajl" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libyajl_cppflags"
+	LDFLAGS="$LDFLAGS $with_libyajl_ldflags"
+
+	AC_CHECK_LIB(yajl, yajl_alloc, [with_libyajl="yes"], [with_libyajl="no (Symbol 'yajl_alloc' not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libyajl" = "xyes"
+then
+	BUILD_WITH_LIBYAJL_CPPFLAGS="$with_libyajl_cppflags"
+	BUILD_WITH_LIBYAJL_LDFLAGS="$with_libyajl_ldflags"
+	BUILD_WITH_LIBYAJL_LIBS="-lyajl"
+	AC_SUBST(BUILD_WITH_LIBYAJL_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBYAJL_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBYAJL_LIBS)
+	AC_DEFINE(HAVE_LIBYAJL, 1, [Define if libyajl is present and usable.])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBYAJL, test "x$with_libyajl" = "xyes")
+# }}}
+
+# --with-mic {{{
+with_mic_cflags="-I/opt/intel/mic/sysmgmt/sdk/include"
+with_mic_ldpath="-L/opt/intel/mic/sysmgmt/sdk/lib/Linux"
+with_mic_libs=""
+AC_ARG_WITH(mic,[AS_HELP_STRING([--with-mic@<:@=PREFIX@:>@], [Path to Intel MIC Access API.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_mic="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_mic="yes"
+	else if test -d "$with_mic/lib"
+	then
+		AC_MSG_NOTICE([Not checking for Intel Mic: Manually configured])
+		with_mic_cflags="-I$withval/include"
+		with_mic_ldpath="-L$withval/lib/Linux"
+		with_mic_libs="-lMicAccessSDK -lscif -lpthread"
+		with_mic="yes"
+	fi; fi; fi
+],
+[with_mic="yes"])
+if test "x$with_mic" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_mic_cflags"
+	AC_CHECK_HEADERS(MicAccessApi.h,[],[with_mic="no (MicAccessApi not found)"])
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_mic" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $with_mic_cflags"
+	LDFLAGS="$LDFLAGS $with_mic_ldpath"
+
+	AC_CHECK_LIB(MicAccessSDK, MicInitAPI,
+			[with_mic_ldpath="$with_mic_ldpath"
+			with_mic_libs="-lMicAccessSDK -lscif -lpthread"],
+			[with_mic="no (symbol MicInitAPI not found)"],[-lscif -lpthread])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+
+if test "x$with_mic" = "xyes"
+then
+	BUILD_WITH_MIC_CPPFLAGS="$with_mic_cflags"
+	BUILD_WITH_MIC_LIBPATH="$with_mic_ldpath"
+	BUILD_WITH_MIC_LDADD="$with_mic_libs"
+	AC_SUBST(BUILD_WITH_MIC_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_MIC_LIBPATH)
+	AC_SUBST(BUILD_WITH_MIC_LDADD)
+fi
+#}}}
+
+# --with-libvarnish {{{
+with_libvarnish_cppflags=""
+with_libvarnish_cflags=""
+with_libvarnish_libs=""
+AC_ARG_WITH(libvarnish, [AS_HELP_STRING([--with-libvarnish@<:@=PREFIX@:>@], [Path to libvarnish.])],
+[
+	if test "x$withval" = "xno"
+	then
+		with_libvarnish="no"
+	else if test "x$withval" = "xyes"
+	then
+		with_libvarnish="use_pkgconfig"
+	else if test -d "$with_libvarnish/lib"
+	then
+		AC_MSG_NOTICE([Not checking for libvarnish: Manually configured])
+		with_libvarnish_cflags="-I$withval/include"
+		with_libvarnish_libs="-L$withval/lib -lvarnishapi"
+		with_libvarnish="yes"
+	fi; fi; fi
+],
+[with_libvarnish="use_pkgconfig"])
+
+# configure using pkg-config
+if test "x$with_libvarnish" = "xuse_pkgconfig"
+then
+	if test "x$PKG_CONFIG" = "x"
+	then
+		with_libvarnish="no (Don't have pkg-config)"
+	fi
+fi
+if test "x$with_libvarnish" = "xuse_pkgconfig"
+then
+	AC_MSG_NOTICE([Checking for varnishapi using $PKG_CONFIG])
+	$PKG_CONFIG --exists 'varnishapi' 2>/dev/null
+	if test $? -ne 0
+	then
+		with_libvarnish="no (pkg-config doesn't know varnishapi)"
+	fi
+fi
+if test "x$with_libvarnish" = "xuse_pkgconfig"
+then
+	with_libvarnish_cflags="`$PKG_CONFIG --cflags 'varnishapi'`"
+	if test $? -ne 0
+	then
+		with_libvarnish="no ($PKG_CONFIG failed)"
+	fi
+	with_libvarnish_libs="`$PKG_CONFIG --libs 'varnishapi'`"
+	if test $? -ne 0
+	then
+		with_libvarnish="no ($PKG_CONFIG failed)"
+	fi
+fi
+if test "x$with_libvarnish" = "xuse_pkgconfig"
+then
+	with_libvarnish="yes"
+fi
+
+# with_libvarnish_cflags and with_libvarnish_libs are set up now, let's do
+# the actual checks.
+if test "x$with_libvarnish" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+
+	CPPFLAGS="$CPPFLAGS $with_libvarnish_cflags"
+
+	AC_CHECK_HEADERS(varnish/vapi/vsc.h,
+		[AC_DEFINE([HAVE_VARNISH_V4], [1], [Varnish 4 API support])],
+		[AC_CHECK_HEADERS(varnish/vsc.h,
+			[AC_DEFINE([HAVE_VARNISH_V3], [1], [Varnish 3 API support])],
+			[AC_CHECK_HEADERS(varnish/varnishapi.h,
+				[AC_DEFINE([HAVE_VARNISH_V2], [1], [Varnish 2 API support])],
+				[with_libvarnish="no (found none of the varnish header files)"])])])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libvarnish" = "xyes"
+then
+	BUILD_WITH_LIBVARNISH_CFLAGS="$with_libvarnish_cflags"
+	BUILD_WITH_LIBVARNISH_LIBS="$with_libvarnish_libs"
+	AC_SUBST(BUILD_WITH_LIBVARNISH_CFLAGS)
+	AC_SUBST(BUILD_WITH_LIBVARNISH_LIBS)
+fi
+# }}}
+
+# pkg-config --exists 'libxml-2.0'; pkg-config --exists libvirt {{{
+with_libxml2="no (pkg-config isn't available)"
+with_libxml2_cflags=""
+with_libxml2_ldflags=""
+with_libvirt="no (pkg-config isn't available)"
+with_libvirt_cflags=""
+with_libvirt_ldflags=""
+if test "x$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 libxml-2.0)"
+	fi
+
+	$PKG_CONFIG --exists libvirt 2>/dev/null
+	if test "$?" = "0"
+	then
+		with_libvirt="yes"
+	else
+		with_libvirt="no (pkg-config doesn't know libvirt)"
+	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_LDFLAGS="$LDFLAGS"
+
+	CFLAGS="$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_LDFLAGS="$LDFLAGS"
+
+	CFLAGS="$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
+# }}}
+
+# $PKG_CONFIG --exists OpenIPMIpthread {{{
+with_libopenipmipthread="yes"
+with_libopenipmipthread_cflags=""
+with_libopenipmipthread_libs=""
+
+AC_MSG_CHECKING([for pkg-config])
+temp_result="no"
+if test "x$PKG_CONFIG" = "x"
+then
+	with_libopenipmipthread="no"
+	temp_result="no"
+else
+	temp_result="$PKG_CONFIG"
+fi
+AC_MSG_RESULT([$temp_result])
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	AC_MSG_CHECKING([for libOpenIPMIpthread])
+	$PKG_CONFIG --exists OpenIPMIpthread 2>/dev/null
+	if test "$?" != "0"
+	then
+		with_libopenipmipthread="no (pkg-config doesn't know OpenIPMIpthread)"
+	fi
+	AC_MSG_RESULT([$with_libopenipmipthread])
+fi
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	AC_MSG_CHECKING([for libOpenIPMIpthread CFLAGS])
+	temp_result="`$PKG_CONFIG --cflags OpenIPMIpthread`"
+	if test "$?" = "0"
+	then
+		with_libopenipmipthread_cflags="$temp_result"
+	else
+		with_libopenipmipthread="no ($PKG_CONFIG --cflags OpenIPMIpthread failed)"
+		temp_result="$PKG_CONFIG --cflags OpenIPMIpthread failed"
+	fi
+	AC_MSG_RESULT([$temp_result])
+fi
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	AC_MSG_CHECKING([for libOpenIPMIpthread LDFLAGS])
+	temp_result="`$PKG_CONFIG --libs OpenIPMIpthread`"
+	if test "$?" = "0"
+	then
+		with_libopenipmipthread_ldflags="$temp_result"
+	else
+		with_libopenipmipthread="no ($PKG_CONFIG --libs OpenIPMIpthread failed)"
+		temp_result="$PKG_CONFIG --libs OpenIPMIpthread failed"
+	fi
+	AC_MSG_RESULT([$temp_result])
+fi
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libopenipmipthread_cflags"
+
+	AC_CHECK_HEADERS(OpenIPMI/ipmi_smi.h,
+			 [with_libopenipmipthread="yes"],
+			 [with_libopenipmipthread="no (OpenIPMI/ipmi_smi.h not found)"],
+[#include <OpenIPMI/ipmiif.h>
+#include <OpenIPMI/ipmi_err.h>
+#include <OpenIPMI/ipmi_posix.h>
+#include <OpenIPMI/ipmi_conn.h>
+])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	BUILD_WITH_OPENIPMI_CFLAGS="$with_libopenipmipthread_cflags"
+	BUILD_WITH_OPENIPMI_LIBS="$with_libopenipmipthread_ldflags"
+	AC_SUBST(BUILD_WITH_OPENIPMI_CFLAGS)
+	AC_SUBST(BUILD_WITH_OPENIPMI_LIBS)
+fi
+# }}}
+
+# --with-libatasmart {{{
+with_libatasmart_cppflags=""
+with_libatasmart_ldflags=""
+AC_ARG_WITH(libatasmart, [AS_HELP_STRING([--with-libatasmart@<:@=PREFIX@:>@], [Path to libatasmart.])],
+[
+	if test "x$withval" != "xno" && test "x$withval" != "xyes"
+	then
+		with_libatasmart_cppflags="-I$withval/include"
+		with_libatasmart_ldflags="-L$withval/lib"
+		with_libatasmart="yes"
+	else
+		with_libatasmart="$withval"
+	fi
+],
+[
+	if test "x$ac_system" = "xLinux"
+	then
+		with_libatasmart="yes"
+	else
+		with_libatasmart="no (Linux only library)"
+	fi
+])
+if test "x$with_libatasmart" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libatasmart_cppflags"
+
+	AC_CHECK_HEADERS(atasmart.h, [with_libatasmart="yes"], [with_libatasmart="no (atasmart.h not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libatasmart" = "xyes"
+then
+	SAVE_CPPFLAGS="$CPPFLAGS"
+	SAVE_LDFLAGS="$LDFLAGS"
+	CPPFLAGS="$CPPFLAGS $with_libatasmart_cppflags"
+	LDFLAGS="$LDFLAGS $with_libatasmart_ldflags"
+
+	AC_CHECK_LIB(atasmart, sk_disk_open, [with_libatasmart="yes"], [with_libatasmart="no (Symbol 'sk_disk_open' not found)"])
+
+	CPPFLAGS="$SAVE_CPPFLAGS"
+	LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libatasmart" = "xyes"
+then
+	BUILD_WITH_LIBATASMART_CPPFLAGS="$with_libatasmart_cppflags"
+	BUILD_WITH_LIBATASMART_LDFLAGS="$with_libatasmart_ldflags"
+	BUILD_WITH_LIBATASMART_LIBS="-latasmart"
+	AC_SUBST(BUILD_WITH_LIBATASMART_CPPFLAGS)
+	AC_SUBST(BUILD_WITH_LIBATASMART_LDFLAGS)
+	AC_SUBST(BUILD_WITH_LIBATASMART_LIBS)
+	AC_DEFINE(HAVE_LIBATASMART, 1, [Define if libatasmart is present and usable.])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBATASMART, test "x$with_libatasmart" = "xyes")
+# }}}
+
+PKG_CHECK_MODULES([LIBNOTIFY], [libnotify],
+		[with_libnotify="yes"],
+		[if test "x$LIBNOTIFY_PKG_ERRORS" = "x"; then
+			 with_libnotify="no"
+		 else
+			 with_libnotify="no ($LIBNOTIFY_PKG_ERRORS)"
+		 fi])
+
+# Check for enabled/disabled features
+#
+
+# AC_COLLECTD(name, enable/disable, info-text, feature/module)
+# ------------------------------------------------------------
+dnl
+m4_define([my_toupper], [m4_translit([$1], m4_defn([m4_cr_letters]), m4_defn([m4_cr_LETTERS]))])
+dnl
+AC_DEFUN(
+	[AC_COLLECTD],
+	[
+	m4_if([$1], [], [AC_FATAL([AC_COLLECTD([$1], [$2], [$3], [$4]): 1st argument must not be empty])])dnl
+	m4_if(
+		[$2],
+		[enable],
+		[dnl
+		m4_define([EnDis],[disabled])dnl
+		m4_define([YesNo],[no])dnl
+		],dnl
+		[m4_if(
+			[$2],
+			[disable],
+			[dnl
+			m4_define([EnDis],[enabled])dnl
+			m4_define([YesNo],[yes])dnl
+			],
+			[dnl
+			AC_FATAL([AC_COLLECTD([$1], [$2], [$3], [$4]): 2nd argument must be either enable or disable])dnl
+			]dnl
+		)]dnl
+	)dnl
+	m4_if([$3], [feature], [],
+		[m4_if(
+			[$3], [module], [],
+			[dnl
+			AC_FATAL([AC_COLLECTD([$1], [$2], [$3], [$4]): 3rd argument must be either feature or disable])dnl
+			]dnl
+		)]dnl
+	)dnl
+	AC_ARG_ENABLE(
+		[$1],
+		AS_HELP_STRING([--$2-$1], [$2 $4 (EnDis by def)]),
+		[],
+		enable_$1='[YesNo]'dnl
+	)# AC_ARG_ENABLE
+if test "x$enable_$1" = "xno"
+then
+	collectd_$1=0
+else
+	if test "x$enable_$1" = "xyes"
+	then
+		collectd_$1=1
+	else
+		AC_MSG_NOTICE([please specify either --enable-$1 or --disable-$1; enabling $1.])
+		collectd_$1=1
+		enable_$1='yes'
+	fi
+fi
+	AC_DEFINE_UNQUOTED([COLLECT_]my_toupper([$1]), [$collectd_$1], [wether or not to enable $3 $4])
+	AM_CONDITIONAL([BUILD_]my_toupper([$3])[_]my_toupper([$1]), [test "x$enable_$1" = "xyes"])dnl
+	]dnl
+)# AC_COLLECTD(name, enable/disable, info-text, feature/module)
+
+# AC_PLUGIN(name, default, info)
+# ------------------------------------------------------------
+dnl
+AC_DEFUN(
+  [AC_PLUGIN],
+  [
+    enable_plugin="no"
+    force="no"
+    AC_ARG_ENABLE([$1], AS_HELP_STRING([--enable-$1],[$3]),
+    [
+     if test "x$enableval" = "xyes"
+     then
+	     enable_plugin="yes"
+     else if test "x$enableval" = "xforce"
+     then
+	     enable_plugin="yes"
+	     force="yes"
+     else
+	     enable_plugin="no (disabled on command line)"
+     fi; fi
+    ],
+    [
+	 if test "x$enable_all_plugins" = "xauto"
+	 then
+	     if test "x$2" = "xyes"
+	     then
+		     enable_plugin="yes"
+	     else
+		     enable_plugin="no"
+	     fi
+	 else
+	     enable_plugin="$enable_all_plugins"
+	 fi
+    ])
+    if test "x$enable_plugin" = "xyes"
+    then
+	    if test "x$2" = "xyes" || test "x$force" = "xyes"
+	    then
+		    AC_DEFINE([HAVE_PLUGIN_]my_toupper([$1]), 1, [Define to 1 if the $1 plugin is enabled.])
+		    if test "x$2" != "xyes"
+		    then
+			    dependency_warning="yes"
+		    fi
+	    else # User passed "yes" but dependency checking yielded "no" => Dependency problem.
+		    dependency_error="yes"
+		    enable_plugin="no (dependency error)"
+	    fi
+    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])
+
+dependency_warning="no"
+dependency_error="no"
+
+plugin_ascent="no"
+plugin_barometer="no"
+plugin_battery="no"
+plugin_bind="no"
+plugin_ceph="no"
+plugin_cgroups="no"
+plugin_conntrack="no"
+plugin_contextswitch="no"
+plugin_cpu="no"
+plugin_cpufreq="no"
+plugin_curl_json="no"
+plugin_curl_xml="no"
+plugin_df="no"
+plugin_disk="no"
+plugin_drbd="no"
+plugin_entropy="no"
+plugin_ethstat="no"
+plugin_fscache="no"
+plugin_interface="no"
+plugin_ipmi="no"
+plugin_ipvs="no"
+plugin_irq="no"
+plugin_load="no"
+plugin_log_logstash="no"
+plugin_memory="no"
+plugin_multimeter="no"
+plugin_nfs="no"
+plugin_numa="no"
+plugin_perl="no"
+plugin_processes="no"
+plugin_protocols="no"
+plugin_serial="no"
+plugin_swap="no"
+plugin_tape="no"
+plugin_tcpconns="no"
+plugin_ted="no"
+plugin_thermal="no"
+plugin_turbostat="no"
+plugin_uptime="no"
+plugin_users="no"
+plugin_virt="no"
+plugin_vmem="no"
+plugin_vserver="no"
+plugin_wireless="no"
+plugin_zfs_arc="no"
+plugin_zookeeper="no"
+
+# Linux
+if test "x$ac_system" = "xLinux"
+then
+	plugin_battery="yes"
+	plugin_conntrack="yes"
+	plugin_contextswitch="yes"
+	plugin_cgroups="yes"
+	plugin_cpu="yes"
+	plugin_cpufreq="yes"
+	plugin_disk="yes"
+	plugin_drbd="yes"
+	plugin_entropy="yes"
+	plugin_fscache="yes"
+	plugin_interface="yes"
+	plugin_ipc="yes"
+	plugin_irq="yes"
+	plugin_load="yes"
+	plugin_lvm="yes"
+	plugin_memory="yes"
+	plugin_nfs="yes"
+	plugin_numa="yes"
+	plugin_processes="yes"
+	plugin_protocols="yes"
+	plugin_serial="yes"
+	plugin_swap="yes"
+	plugin_tcpconns="yes"
+	plugin_thermal="yes"
+	plugin_uptime="yes"
+	plugin_vmem="yes"
+	plugin_vserver="yes"
+	plugin_wireless="yes"
+	plugin_zfs_arc="yes"
+
+	if test "x$have_linux_ip_vs_h" = "xyes" || test "x$have_net_ip_vs_h" = "xyes" || test "x$have_ip_vs_h" = "xyes"
+	then
+		plugin_ipvs="yes"
+	fi
+	if test "x$c_cv_have_usable_asm_msrindex_h" = "xyes" && test "x$have_cpuid_h" = "xyes"
+	then
+		plugin_turbostat="yes"
+	fi
+fi
+
+if test "x$ac_system" = "xOpenBSD"
+then
+	plugin_tcpconns="yes"
+fi
+
+# Mac OS X devices
+if test "x$with_libiokit" = "xyes"
+then
+	plugin_battery="yes"
+	plugin_disk="yes"
+fi
+
+# AIX
+
+if test "x$ac_system" = "xAIX"
+then
+        plugin_tcpconns="yes"
+        plugin_ipc="yes"
+fi
+
+# FreeBSD
+
+if test "x$ac_system" = "xFreeBSD"
+then
+        plugin_zfs_arc="yes"
+fi
+
+
+if test "x$with_perfstat" = "xyes"
+then
+	plugin_cpu="yes"
+	plugin_contextswitch="yes"
+	plugin_disk="yes"
+	plugin_memory="yes"
+	plugin_swap="yes"
+	plugin_interface="yes"
+	plugin_load="yes"
+	plugin_uptime="yes"
+fi
+
+if test "x$with_procinfo" = "xyes"
+then
+	plugin_processes="yes"
+fi
+
+# Solaris
+if test "x$with_kstat" = "xyes"
+then
+	plugin_nfs="yes"
+	plugin_processes="yes"
+	plugin_uptime="yes"
+	plugin_zfs_arc="yes"
+fi
+
+if test "x$with_devinfo$with_kstat" = "xyesyes"
+then
+	plugin_cpu="yes"
+	plugin_disk="yes"
+	plugin_interface="yes"
+	plugin_memory="yes"
+	plugin_tape="yes"
+fi
+
+# libi2c-dev
+with_libi2c="no"
+if test "x$ac_system" = "xLinux"
+then
+AC_CHECK_DECL(i2c_smbus_read_i2c_block_data,
+	[with_libi2c="yes"],
+	[with_libi2c="no (symbol i2c_smbus_read_i2c_block_data not found - have you installed libi2c-dev ?)"],
+	[[#include <stdlib.h>
+	#include <linux/i2c-dev.h>]])
+fi
+
+if test "x$with_libi2c" = "xyes"
+then
+	plugin_barometer="yes"
+fi
+
+
+# libstatgrab
+if test "x$with_libstatgrab" = "xyes"
+then
+	plugin_cpu="yes"
+	plugin_disk="yes"
+	plugin_interface="yes"
+	plugin_load="yes"
+	plugin_memory="yes"
+	plugin_swap="yes"
+	plugin_users="yes"
+fi
+
+if test "x$with_libcurl" = "xyes" && test "x$with_libxml2" = "xyes"
+then
+	plugin_ascent="yes"
+	if test "x$have_strptime" = "xyes"
+	then
+		plugin_bind="yes"
+	fi
+fi
+
+if test "x$with_libopenipmipthread" = "xyes"
+then
+	plugin_ipmi="yes"
+fi
+
+if test "x$with_libcurl" = "xyes" && test "x$with_libyajl" = "xyes"
+then
+	plugin_curl_json="yes"
+fi
+
+if test "x$with_libcurl" = "xyes" && test "x$with_libxml2" = "xyes"
+then
+	plugin_curl_xml="yes"
+fi
+
+if test "x$with_libyajl" = "xyes"
+then
+	plugin_ceph="yes"
+fi
+
+if test "x$have_processor_info" = "xyes"
+then
+	plugin_cpu="yes"
+fi
+if test "x$have_sysctl" = "xyes"
+then
+	plugin_cpu="yes"
+	plugin_memory="yes"
+	plugin_uptime="yes"
+	if test "x$ac_system" = "xDarwin"
+	then
+		plugin_swap="yes"
+	fi
+fi
+if test "x$have_sysctlbyname" = "xyes"
+then
+	plugin_contextswitch="yes"
+	plugin_cpu="yes"
+	plugin_memory="yes"
+	plugin_tcpconns="yes"
+fi
+
+# Df plugin: Check if we know how to determine mount points first.
+#if test "x$have_listmntent" = "xyes"; then
+#	plugin_df="yes"
+#fi
+if test "x$have_getvfsstat" = "xyes" || test "x$have_getfsstat" = "xyes"
+then
+	plugin_df="yes"
+fi
+if test "x$c_cv_have_two_getmntent" = "xyes" || test "x$have_getmntent" = "xgen" || test "x$have_getmntent" = "xsun"
+then
+	plugin_df="yes"
+fi
+#if test "x$have_getmntent" = "xseq"
+#then
+#	plugin_df="yes"
+#fi
+if test "x$c_cv_have_one_getmntent" = "xyes"
+then
+	plugin_df="yes"
+fi
+
+# Df plugin: Check if we have either `statfs' or `statvfs' second.
+if test "x$plugin_df" = "xyes"
+then
+	plugin_df="no"
+	if test "x$have_statfs" = "xyes"
+	then
+		plugin_df="yes"
+	fi
+	if test "x$have_statvfs" = "xyes"
+	then
+		plugin_df="yes"
+	fi
+fi
+
+if test "x$have_linux_sockios_h$have_linux_ethtool_h" = "xyesyes"
+then
+	plugin_ethstat="yes"
+fi
+
+if test "x$have_getifaddrs" = "xyes"
+then
+	plugin_interface="yes"
+fi
+
+if test "x$have_getloadavg" = "xyes"
+then
+	plugin_load="yes"
+fi
+
+if test "x$with_libyajl" = "xyes"
+then
+	plugin_log_logstash="yes"
+fi
+
+if test "x$c_cv_have_libperl$c_cv_have_perl_ithreads" = "xyesyes"
+then
+	plugin_perl="yes"
+fi
+
+# Mac OS X memory interface
+if test "x$have_host_statistics" = "xyes"
+then
+	plugin_memory="yes"
+fi
+
+if test "x$have_termios_h" = "xyes"
+then
+	if test "x$ac_system" != "xAIX"
+	then
+		plugin_multimeter="yes"
+	fi
+	plugin_ted="yes"
+fi
+
+if test "x$have_thread_info" = "xyes"
+then
+	plugin_processes="yes"
+fi
+
+if test "x$with_kvm_getprocs" = "xyes" && test "x$have_struct_kinfo_proc_freebsd" = "xyes"
+then
+	plugin_processes="yes"
+fi
+
+if test "x$with_kvm_getprocs" = "xyes" && test "x$have_struct_kinfo_proc_openbsd" = "xyes"
+then
+	plugin_processes="yes"
+fi
+
+if test "x$with_kvm_getswapinfo" = "xyes"
+then
+	plugin_swap="yes"
+fi
+
+if test "x$have_swapctl" = "xyes" && test "x$c_cv_have_swapctl_two_args" = "xyes"
+then
+	plugin_swap="yes"
+fi
+
+if test "x$with_kvm_openfiles$with_kvm_nlist" = "xyesyes"
+then
+	plugin_tcpconns="yes"
+fi
+
+if test "x$have_getutent" = "xyes"
+then
+	plugin_users="yes"
+fi
+if test "x$have_getutxent" = "xyes"
+then
+	plugin_users="yes"
+fi
+
+if test "x$with_libxml2" = "xyes" && test "x$with_libvirt" = "xyes"
+then
+	plugin_virt="yes"
+fi
+
+
+m4_divert_once([HELP_ENABLE], [
+collectd plugins:])
+
+AC_ARG_ENABLE([all-plugins],
+		AS_HELP_STRING([--enable-all-plugins],[enable all plugins (auto by def)]),
+		[
+		 if test "x$enableval" = "xyes"
+		 then
+			 enable_all_plugins="yes"
+		 else if test "x$enableval" = "xauto"
+		 then
+			 enable_all_plugins="auto"
+		 else
+			 enable_all_plugins="no"
+		 fi; fi
+		],
+		[enable_all_plugins="auto"])
+
+m4_divert_once([HELP_ENABLE], [])
+
+AC_PLUGIN([aggregation], [yes],                [Aggregation plugin])
+AC_PLUGIN([amqp],        [$with_librabbitmq],  [AMQP output plugin])
+AC_PLUGIN([apache],      [$with_libcurl],      [Apache httpd statistics])
+AC_PLUGIN([apcups],      [yes],                [Statistics of UPSes by APC])
+AC_PLUGIN([apple_sensors], [$with_libiokit],   [Apple's hardware sensors])
+AC_PLUGIN([aquaero],     [$with_libaquaero5],  [Aquaero's hardware sensors])
+AC_PLUGIN([ascent],      [$plugin_ascent],     [AscentEmu player statistics])
+AC_PLUGIN([barometer],   [$plugin_barometer],  [Barometer sensor on I2C])
+AC_PLUGIN([battery],     [$plugin_battery],    [Battery statistics])
+AC_PLUGIN([bind],        [$plugin_bind],       [ISC Bind nameserver statistics])
+AC_PLUGIN([ceph],        [$plugin_ceph],       [Ceph daemon statistics])
+AC_PLUGIN([conntrack],   [$plugin_conntrack],  [nf_conntrack statistics])
+AC_PLUGIN([contextswitch], [$plugin_contextswitch], [context switch statistics])
+AC_PLUGIN([cpufreq],     [$plugin_cpufreq],    [CPU frequency statistics])
+AC_PLUGIN([cpu],         [$plugin_cpu],        [CPU usage statistics])
+AC_PLUGIN([csv],         [yes],                [CSV output plugin])
+AC_PLUGIN([curl],        [$with_libcurl],      [CURL generic web statistics])
+AC_PLUGIN([curl_json],   [$plugin_curl_json],    [CouchDB statistics])
+AC_PLUGIN([curl_xml],   [$plugin_curl_xml],    [CURL generic xml statistics])
+AC_PLUGIN([cgroups],     [$plugin_cgroups],    [CGroups CPU usage accounting])
+AC_PLUGIN([dbi],         [$with_libdbi],       [General database statistics])
+AC_PLUGIN([df],          [$plugin_df],         [Filesystem usage statistics])
+AC_PLUGIN([disk],        [$plugin_disk],       [Disk usage statistics])
+AC_PLUGIN([drbd],        [$plugin_drbd],       [DRBD statistics])
+AC_PLUGIN([dns],         [$with_libpcap],      [DNS traffic analysis])
+AC_PLUGIN([email],       [yes],                [EMail statistics])
+AC_PLUGIN([entropy],     [$plugin_entropy],    [Entropy statistics])
+AC_PLUGIN([ethstat],     [$plugin_ethstat],    [Stats from NIC driver])
+AC_PLUGIN([exec],        [yes],                [Execution of external programs])
+AC_PLUGIN([fhcount],     [yes],                [File handles statistics])
+AC_PLUGIN([filecount],   [yes],                [Count files in directories])
+AC_PLUGIN([fscache],     [$plugin_fscache],    [fscache statistics])
+AC_PLUGIN([gmond],       [$with_libganglia],   [Ganglia plugin])
+AC_PLUGIN([hddtemp],     [yes],                [Query hddtempd])
+AC_PLUGIN([interface],   [$plugin_interface],  [Interface traffic statistics])
+AC_PLUGIN([ipc],         [$plugin_ipc],        [IPC statistics])
+AC_PLUGIN([ipmi],        [$plugin_ipmi],       [IPMI sensor statistics])
+AC_PLUGIN([iptables],    [$with_libiptc],      [IPTables rule counters])
+AC_PLUGIN([ipvs],        [$plugin_ipvs],       [IPVS connection statistics])
+AC_PLUGIN([irq],         [$plugin_irq],        [IRQ statistics])
+AC_PLUGIN([java],        [$with_java],         [Embed the Java Virtual Machine])
+AC_PLUGIN([load],        [$plugin_load],       [System load])
+AC_PLUGIN([logfile],     [yes],                [File logging plugin])
+AC_PLUGIN([log_logstash], [$plugin_log_logstash], [Logstash json_event compatible logging])
+AC_PLUGIN([lpar],        [$with_perfstat],     [AIX logical partitions statistics])
+AC_PLUGIN([lvm],         [$with_liblvm2app],   [LVM statistics])
+AC_PLUGIN([madwifi],     [$have_linux_wireless_h], [Madwifi wireless statistics])
+AC_PLUGIN([match_empty_counter], [yes],        [The empty counter match])
+AC_PLUGIN([match_hashed], [yes],               [The hashed match])
+AC_PLUGIN([match_regex], [yes],                [The regex match])
+AC_PLUGIN([match_timediff], [yes],             [The timediff match])
+AC_PLUGIN([match_value], [yes],                [The value match])
+AC_PLUGIN([mbmon],       [yes],                [Query mbmond])
+AC_PLUGIN([md],          [$have_linux_raid_md_u_h], [md (Linux software RAID) devices])
+AC_PLUGIN([memcachec],   [$with_libmemcached], [memcachec statistics])
+AC_PLUGIN([memcached],   [yes],                [memcached statistics])
+AC_PLUGIN([memory],      [$plugin_memory],     [Memory usage])
+AC_PLUGIN([mic],         [$with_mic],          [Intel Many Integrated Core stats])
+AC_PLUGIN([modbus],      [$with_libmodbus],    [Modbus plugin])
+AC_PLUGIN([multimeter],  [$plugin_multimeter], [Read multimeter values])
+AC_PLUGIN([mysql],       [$with_libmysql],     [MySQL statistics])
+AC_PLUGIN([netapp],      [$with_libnetapp],    [NetApp plugin])
+AC_PLUGIN([netlink],     [$with_libmnl],       [Enhanced Linux network statistics])
+AC_PLUGIN([network],     [yes],                [Network communication plugin])
+AC_PLUGIN([nfs],         [$plugin_nfs],        [NFS statistics])
+AC_PLUGIN([nginx],       [$with_libcurl],      [nginx statistics])
+AC_PLUGIN([notify_desktop], [$with_libnotify], [Desktop notifications])
+AC_PLUGIN([notify_email], [$with_libesmtp],    [Email notifier])
+AC_PLUGIN([ntpd],        [yes],                [NTPd statistics])
+AC_PLUGIN([numa],        [$plugin_numa],       [NUMA virtual memory statistics])
+AC_PLUGIN([nut],         [$with_libupsclient], [Network UPS tools statistics])
+AC_PLUGIN([olsrd],       [yes],                [olsrd statistics])
+AC_PLUGIN([onewire],     [$with_libowcapi],    [OneWire sensor statistics])
+AC_PLUGIN([openldap],    [$with_libldap],      [OpenLDAP statistics])
+AC_PLUGIN([openvpn],     [yes],                [OpenVPN client statistics])
+AC_PLUGIN([oracle],      [$with_oracle],       [Oracle plugin])
+AC_PLUGIN([perl],        [$plugin_perl],       [Embed a Perl interpreter])
+AC_PLUGIN([pf],          [$have_net_pfvar_h],  [BSD packet filter (PF) statistics])
+# FIXME: Check for libevent, too.
+AC_PLUGIN([pinba],       [$have_protoc_c],     [Pinba statistics])
+AC_PLUGIN([ping],        [$with_liboping],     [Network latency statistics])
+AC_PLUGIN([postgresql],  [$with_libpq],        [PostgreSQL database statistics])
+AC_PLUGIN([powerdns],    [yes],                [PowerDNS statistics])
+AC_PLUGIN([processes],   [$plugin_processes],  [Process statistics])
+AC_PLUGIN([protocols],   [$plugin_protocols],  [Protocol (IP, TCP, ...) statistics])
+AC_PLUGIN([python],      [$with_python],       [Embed a Python interpreter])
+AC_PLUGIN([redis],       [$with_libhiredis],    [Redis plugin])
+AC_PLUGIN([routeros],    [$with_librouteros],  [RouterOS plugin])
+AC_PLUGIN([rrdcached],   [$librrd_rrdc_update], [RRDTool output plugin])
+AC_PLUGIN([rrdtool],     [$with_librrd],       [RRDTool output plugin])
+AC_PLUGIN([sensors],     [$with_libsensors],   [lm_sensors statistics])
+AC_PLUGIN([serial],      [$plugin_serial],     [serial port traffic])
+AC_PLUGIN([sigrok],      [$with_libsigrok],    [sigrok acquisition sources])
+AC_PLUGIN([smart],       [$with_libatasmart],  [SMART statistics])
+AC_PLUGIN([snmp],        [$with_libnetsnmp],   [SNMP querying plugin])
+AC_PLUGIN([statsd],      [yes],                [StatsD plugin])
+AC_PLUGIN([swap],        [$plugin_swap],       [Swap usage statistics])
+AC_PLUGIN([syslog],      [$have_syslog],       [Syslog logging plugin])
+AC_PLUGIN([table],       [yes],                [Parsing of tabular data])
+AC_PLUGIN([tail],        [yes],                [Parsing of logfiles])
+AC_PLUGIN([tail_csv],    [yes],                [Parsing of CSV files])
+AC_PLUGIN([tape],        [$plugin_tape],       [Tape drive statistics])
+AC_PLUGIN([target_notification], [yes],        [The notification target])
+AC_PLUGIN([target_replace], [yes],             [The replace target])
+AC_PLUGIN([target_scale],[yes],                [The scale target])
+AC_PLUGIN([target_set],  [yes],                [The set target])
+AC_PLUGIN([target_v5upgrade], [yes],           [The v5upgrade target])
+AC_PLUGIN([tcpconns],    [$plugin_tcpconns],   [TCP connection statistics])
+AC_PLUGIN([teamspeak2],  [yes],                [TeamSpeak2 server statistics])
+AC_PLUGIN([ted],         [$plugin_ted],        [Read The Energy Detective values])
+AC_PLUGIN([thermal],     [$plugin_thermal],    [Linux ACPI thermal zone statistics])
+AC_PLUGIN([threshold],   [yes],                [Threshold checking plugin])
+AC_PLUGIN([tokyotyrant], [$with_libtokyotyrant],  [TokyoTyrant database statistics])
+AC_PLUGIN([turbostat],   [$plugin_turbostat],  [Advanced statistic on Intel cpu states])
+AC_PLUGIN([unixsock],    [yes],                [Unixsock communication plugin])
+AC_PLUGIN([uptime],      [$plugin_uptime],     [Uptime statistics])
+AC_PLUGIN([users],       [$plugin_users],      [User statistics])
+AC_PLUGIN([uuid],        [yes],                [UUID as hostname plugin])
+AC_PLUGIN([varnish],     [$with_libvarnish],   [Varnish cache statistics])
+AC_PLUGIN([virt],        [$plugin_virt],       [Virtual machine statistics])
+AC_PLUGIN([vmem],        [$plugin_vmem],       [Virtual memory statistics])
+AC_PLUGIN([vserver],     [$plugin_vserver],    [Linux VServer statistics])
+AC_PLUGIN([wireless],    [$plugin_wireless],   [Wireless statistics])
+AC_PLUGIN([write_graphite], [yes],             [Graphite / Carbon output plugin])
+AC_PLUGIN([write_http],  [$with_libcurl],      [HTTP output plugin])
+AC_PLUGIN([write_kafka],  [$with_librdkafka],  [Kafka output plugin])
+AC_PLUGIN([write_log], [yes],                  [Log output plugin])
+AC_PLUGIN([write_mongodb], [$with_libmongoc],  [MongoDB output plugin])
+AC_PLUGIN([write_redis], [$with_libhiredis],    [Redis output plugin])
+AC_PLUGIN([write_riemann], [$have_protoc_c],   [Riemann output plugin])
+AC_PLUGIN([write_sensu], [yes],                [Sensu output plugin])
+AC_PLUGIN([write_tsdb],  [yes],                [TSDB output plugin])
+AC_PLUGIN([xmms],        [$with_libxmms],      [XMMS statistics])
+AC_PLUGIN([zfs_arc],     [$plugin_zfs_arc],    [ZFS ARC statistics])
+AC_PLUGIN([zookeeper],   [yes],  	       [Zookeeper statistics])
+
+dnl Default configuration file
+# Load either syslog or logfile
+LOAD_PLUGIN_SYSLOG=""
+LOAD_PLUGIN_LOGFILE=""
+LOAD_PLUGIN_LOG_LOGSTASH=""
+
+AC_MSG_CHECKING([which default log plugin to load])
+default_log_plugin="none"
+if test "x$enable_syslog" = "xyes"
+then
+	default_log_plugin="syslog"
+else
+	LOAD_PLUGIN_SYSLOG="##"
+fi
+
+if test "x$enable_logfile" = "xyes"
+then
+	if test "x$default_log_plugin" = "xnone"
+	then
+		default_log_plugin="logfile"
+	else
+		LOAD_PLUGIN_LOGFILE="#"
+	fi
+else
+	LOAD_PLUGIN_LOGFILE="##"
+fi
+
+if test "x$enable_log_logstash" = "xyes"
+then
+  LOAD_PLUGIN_LOG_LOGSTASH="#"
+else
+  LOAD_PLUGIN_LOG_LOGSTASH="##"
+fi
+
+
+AC_MSG_RESULT([$default_log_plugin])
+
+AC_SUBST(LOAD_PLUGIN_SYSLOG)
+AC_SUBST(LOAD_PLUGIN_LOGFILE)
+AC_SUBST(LOAD_PLUGIN_LOG_LOGSTASH)
+
+DEFAULT_LOG_LEVEL="info"
+if test "x$enable_debug" = "xyes"
+then
+	DEFAULT_LOG_LEVEL="debug"
+fi
+AC_SUBST(DEFAULT_LOG_LEVEL)
+
+# Load only one of rrdtool, network, csv in the default config.
+LOAD_PLUGIN_RRDTOOL=""
+LOAD_PLUGIN_NETWORK=""
+LOAD_PLUGIN_CSV=""
+
+AC_MSG_CHECKING([which default write plugin to load])
+default_write_plugin="none"
+if test "x$enable_rrdtool" = "xyes"
+then
+	default_write_plugin="rrdtool"
+else
+	LOAD_PLUGIN_RRDTOOL="##"
+fi
+
+if test "x$enable_network" = "xyes"
+then
+	if test "x$default_write_plugin" = "xnone"
+	then
+		default_write_plugin="network"
+	else
+		LOAD_PLUGIN_NETWORK="#"
+	fi
+else
+	LOAD_PLUGIN_NETWORK="##"
+fi
+
+if test "x$enable_csv" = "xyes"
+then
+	if test "x$default_write_plugin" = "xnone"
+	then
+		default_write_plugin="csv"
+	else
+		LOAD_PLUGIN_CSV="#"
+	fi
+else
+	LOAD_PLUGIN_CSV="##"
+fi
+AC_MSG_RESULT([$default_write_plugin])
+
+AC_SUBST(LOAD_PLUGIN_RRDTOOL)
+AC_SUBST(LOAD_PLUGIN_NETWORK)
+AC_SUBST(LOAD_PLUGIN_CSV)
+
+dnl ip_vs.h
+if test "x$ac_system" = "xLinux" \
+	&& test "x$have_linux_ip_vs_h$have_net_ip_vs_h$have_ip_vs_h" = "xnonono"
+then
+	enable_ipvs="$enable_ipvs (ip_vs.h not found)"
+fi
+
+if test "x$ip_vs_h_needs_kernel_cflags" = "xyes"
+then
+	enable_ipvs="$enable_ipvs (needs $KERNEL_CFLAGS)"
+fi
+
+dnl Perl bindings
+PERL_BINDINGS_OPTIONS="PREFIX=${prefix}"
+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="$withval"
+		with_perl_bindings="yes"
+	else
+		with_perl_bindings="$withval"
+	fi
+],
+[
+	if test -n "$perl_interpreter"
+	then
+		with_perl_bindings="yes"
+	else
+		with_perl_bindings="no (no perl interpreter found)"
+	fi
+])
+if test "x$with_perl_bindings" = "xyes"
+then
+	PERL_BINDINGS="perl"
+else
+	PERL_BINDINGS=""
+fi
+AC_SUBST(PERL_BINDINGS)
+AC_SUBST(PERL_BINDINGS_OPTIONS)
+
+dnl libcollectdclient
+LCC_VERSION_MAJOR=`echo $PACKAGE_VERSION | cut -d'.' -f1`
+LCC_VERSION_MINOR=`echo $PACKAGE_VERSION | cut -d'.' -f2`
+LCC_VERSION_PATCH=`echo $PACKAGE_VERSION | cut -d'.' -f3`
+
+LCC_VERSION_EXTRA=`echo $PACKAGE_VERSION | cut -d'.' -f4-`
+
+LCC_VERSION_STRING="$LCC_VERSION_MAJOR.$LCC_VERSION_MINOR.$LCC_VERSION_PATCH"
+
+AC_SUBST(LCC_VERSION_MAJOR)
+AC_SUBST(LCC_VERSION_MINOR)
+AC_SUBST(LCC_VERSION_PATCH)
+AC_SUBST(LCC_VERSION_EXTRA)
+AC_SUBST(LCC_VERSION_STRING)
+
+AC_CONFIG_FILES(src/libcollectdclient/collectd/lcc_features.h)
+
+AC_CONFIG_FILES([Makefile src/Makefile src/daemon/Makefile src/collectd.conf src/libcollectdclient/Makefile src/libcollectdclient/libcollectdclient.pc src/liboconfig/Makefile bindings/Makefile bindings/java/Makefile])
+AC_OUTPUT
+
+if test "x$with_librrd" = "xyes" \
+	&& test "x$librrd_threadsafe" != "xyes"
+then
+	with_librrd="yes (warning: librrd is not thread-safe)"
+fi
+
+if test "x$with_libperl" = "xyes"
+then
+	with_libperl="yes (version `$perl_interpreter -MConfig -e 'print $Config{version};'`)"
+else
+	enable_perl="no (needs libperl)"
+fi
+
+if test "x$enable_perl" = "xno" && test "x$c_cv_have_perl_ithreads" = "xno"
+then
+	enable_perl="no (libperl doesn't support ithreads)"
+fi
+
+if test "x$with_perl_bindings" = "xyes" \
+	&& test "x$PERL_BINDINGS_OPTIONS" != "x"
+then
+	with_perl_bindings="yes ($PERL_BINDINGS_OPTIONS)"
+fi
+
+cat <<EOF;
+
+Configuration:
+  Libraries:
+    intel mic . . . . . . $with_mic
+    libaquaero5 . . . . . $with_libaquaero5
+    libatasmart . . . . . $with_libatasmart
+    libcurl . . . . . . . $with_libcurl
+    libdbi  . . . . . . . $with_libdbi
+    libesmtp  . . . . . . $with_libesmtp
+    libganglia  . . . . . $with_libganglia
+    libgcrypt . . . . . . $with_libgcrypt
+    libhal  . . . . . . . $with_libhal
+    libhiredis  . . . . . $with_libhiredis
+    libi2c-dev  . . . . . $with_libi2c
+    libiokit  . . . . . . $with_libiokit
+    libiptc . . . . . . . $with_libiptc
+    libjvm  . . . . . . . $with_java
+    libkstat  . . . . . . $with_kstat
+    libkvm  . . . . . . . $with_libkvm
+    libldap . . . . . . . $with_libldap
+    liblvm2app  . . . . . $with_liblvm2app
+    libmemcached  . . . . $with_libmemcached
+    libmnl  . . . . . . . $with_libmnl
+    libmodbus . . . . . . $with_libmodbus
+    libmongoc . . . . . . $with_libmongoc
+    libmysql  . . . . . . $with_libmysql
+    libnetapp . . . . . . $with_libnetapp
+    libnetsnmp  . . . . . $with_libnetsnmp
+    libnotify . . . . . . $with_libnotify
+    liboconfig  . . . . . $with_liboconfig
+    libopenipmi . . . . . $with_libopenipmipthread
+    liboping  . . . . . . $with_liboping
+    libowcapi . . . . . . $with_libowcapi
+    libpcap . . . . . . . $with_libpcap
+    libperfstat . . . . . $with_perfstat
+    libperl . . . . . . . $with_libperl
+    libpq . . . . . . . . $with_libpq
+    libpthread  . . . . . $with_libpthread
+    librabbitmq . . . . . $with_librabbitmq
+    librdkafka  . . . . . $with_librdkafka
+    librouteros . . . . . $with_librouteros
+    librrd  . . . . . . . $with_librrd
+    libsensors  . . . . . $with_libsensors
+    libsigrok   . . . . . $with_libsigrok
+    libstatgrab . . . . . $with_libstatgrab
+    libtokyotyrant  . . . $with_libtokyotyrant
+    libudev . . . . . . . $with_libudev
+    libupsclient  . . . . $with_libupsclient
+    libvarnish  . . . . . $with_libvarnish
+    libvirt . . . . . . . $with_libvirt
+    libxml2 . . . . . . . $with_libxml2
+    libxmms . . . . . . . $with_libxmms
+    libyajl . . . . . . . $with_libyajl
+    oracle  . . . . . . . $with_oracle
+    protobuf-c  . . . . . $have_protoc_c
+    python  . . . . . . . $with_python
+
+  Features:
+    daemon mode . . . . . $enable_daemon
+    debug . . . . . . . . $enable_debug
+
+  Bindings:
+    perl  . . . . . . . . $with_perl_bindings
+
+  Modules:
+    aggregation . . . . . $enable_aggregation
+    amqp    . . . . . . . $enable_amqp
+    apache  . . . . . . . $enable_apache
+    apcups  . . . . . . . $enable_apcups
+    apple_sensors . . . . $enable_apple_sensors
+    aquaero . . . . . . . $enable_aquaero
+    ascent  . . . . . . . $enable_ascent
+    barometer . . . . . . $enable_barometer
+    battery . . . . . . . $enable_battery
+    bind  . . . . . . . . $enable_bind
+    ceph  . . . . . . . . $enable_ceph
+    cgroups . . . . . . . $enable_cgroups
+    conntrack . . . . . . $enable_conntrack
+    contextswitch . . . . $enable_contextswitch
+    cpu . . . . . . . . . $enable_cpu
+    cpufreq . . . . . . . $enable_cpufreq
+    csv . . . . . . . . . $enable_csv
+    curl  . . . . . . . . $enable_curl
+    curl_json . . . . . . $enable_curl_json
+    curl_xml  . . . . . . $enable_curl_xml
+    dbi . . . . . . . . . $enable_dbi
+    df  . . . . . . . . . $enable_df
+    disk  . . . . . . . . $enable_disk
+    dns . . . . . . . . . $enable_dns
+    drbd  . . . . . . . . $enable_drbd
+    email . . . . . . . . $enable_email
+    entropy . . . . . . . $enable_entropy
+    ethstat . . . . . . . $enable_ethstat
+    exec  . . . . . . . . $enable_exec
+    fhcount . . . . . . . $enable_fhcount
+    filecount . . . . . . $enable_filecount
+    fscache . . . . . . . $enable_fscache
+    gmond . . . . . . . . $enable_gmond
+    hddtemp . . . . . . . $enable_hddtemp
+    interface . . . . . . $enable_interface
+    ipc . . . . . . . . . $enable_ipc
+    ipmi  . . . . . . . . $enable_ipmi
+    iptables  . . . . . . $enable_iptables
+    ipvs  . . . . . . . . $enable_ipvs
+    irq . . . . . . . . . $enable_irq
+    java  . . . . . . . . $enable_java
+    load  . . . . . . . . $enable_load
+    logfile . . . . . . . $enable_logfile
+    log_logstash  . . . . $enable_log_logstash
+    lpar  . . . . . . . . $enable_lpar
+    lvm . . . . . . . . . $enable_lvm
+    madwifi . . . . . . . $enable_madwifi
+    match_empty_counter . $enable_match_empty_counter
+    match_hashed  . . . . $enable_match_hashed
+    match_regex . . . . . $enable_match_regex
+    match_timediff  . . . $enable_match_timediff
+    match_value . . . . . $enable_match_value
+    mbmon . . . . . . . . $enable_mbmon
+    md  . . . . . . . . . $enable_md
+    memcachec . . . . . . $enable_memcachec
+    memcached . . . . . . $enable_memcached
+    memory  . . . . . . . $enable_memory
+    mic . . . . . . . . . $enable_mic
+    modbus  . . . . . . . $enable_modbus
+    multimeter  . . . . . $enable_multimeter
+    mysql . . . . . . . . $enable_mysql
+    netapp  . . . . . . . $enable_netapp
+    netlink . . . . . . . $enable_netlink
+    network . . . . . . . $enable_network
+    nfs . . . . . . . . . $enable_nfs
+    nginx . . . . . . . . $enable_nginx
+    notify_desktop  . . . $enable_notify_desktop
+    notify_email  . . . . $enable_notify_email
+    ntpd  . . . . . . . . $enable_ntpd
+    numa  . . . . . . . . $enable_numa
+    nut . . . . . . . . . $enable_nut
+    olsrd . . . . . . . . $enable_olsrd
+    onewire . . . . . . . $enable_onewire
+    openldap  . . . . . . $enable_openldap
+    openvpn . . . . . . . $enable_openvpn
+    oracle  . . . . . . . $enable_oracle
+    perl  . . . . . . . . $enable_perl
+    pf  . . . . . . . . . $enable_pf
+    pinba . . . . . . . . $enable_pinba
+    ping  . . . . . . . . $enable_ping
+    postgresql  . . . . . $enable_postgresql
+    powerdns  . . . . . . $enable_powerdns
+    processes . . . . . . $enable_processes
+    protocols . . . . . . $enable_protocols
+    python  . . . . . . . $enable_python
+    redis . . . . . . . . $enable_redis
+    routeros  . . . . . . $enable_routeros
+    rrdcached . . . . . . $enable_rrdcached
+    rrdtool . . . . . . . $enable_rrdtool
+    sensors . . . . . . . $enable_sensors
+    serial  . . . . . . . $enable_serial
+    sigrok  . . . . . . . $enable_sigrok
+    smart . . . . . . . . $enable_smart
+    snmp  . . . . . . . . $enable_snmp
+    statsd  . . . . . . . $enable_statsd
+    swap  . . . . . . . . $enable_swap
+    syslog  . . . . . . . $enable_syslog
+    table . . . . . . . . $enable_table
+    tail_csv  . . . . . . $enable_tail_csv
+    tail  . . . . . . . . $enable_tail
+    tape  . . . . . . . . $enable_tape
+    target_notification . $enable_target_notification
+    target_replace  . . . $enable_target_replace
+    target_scale  . . . . $enable_target_scale
+    target_set  . . . . . $enable_target_set
+    target_v5upgrade  . . $enable_target_v5upgrade
+    tcpconns  . . . . . . $enable_tcpconns
+    teamspeak2  . . . . . $enable_teamspeak2
+    ted . . . . . . . . . $enable_ted
+    thermal . . . . . . . $enable_thermal
+    threshold . . . . . . $enable_threshold
+    tokyotyrant . . . . . $enable_tokyotyrant
+    turbostat . . . . . . $enable_turbostat
+    unixsock  . . . . . . $enable_unixsock
+    uptime  . . . . . . . $enable_uptime
+    users . . . . . . . . $enable_users
+    uuid  . . . . . . . . $enable_uuid
+    varnish . . . . . . . $enable_varnish
+    virt  . . . . . . . . $enable_virt
+    vmem  . . . . . . . . $enable_vmem
+    vserver . . . . . . . $enable_vserver
+    wireless  . . . . . . $enable_wireless
+    write_graphite  . . . $enable_write_graphite
+    write_http  . . . . . $enable_write_http
+    write_kafka . . . . . $enable_write_kafka
+    write_log . . . . . . $enable_write_log
+    write_mongodb . . . . $enable_write_mongodb
+    write_redis . . . . . $enable_write_redis
+    write_riemann . . . . $enable_write_riemann
+    write_sensu . . . . . $enable_write_sensu
+    write_tsdb  . . . . . $enable_write_tsdb
+    xmms  . . . . . . . . $enable_xmms
+    zfs_arc . . . . . . . $enable_zfs_arc
+    zookeeper . . . . . . $enable_zookeeper
+
+EOF
+
+if test "x$dependency_error" = "xyes"; then
+	AC_MSG_ERROR("Some plugins are missing dependencies - see the summary above for details")
+fi
+
+if test "x$dependency_warning" = "xyes"; then
+	AC_MSG_WARN("Some plugins seem to have missing dependencies but have been enabled forcibly - see the summary above for details")
+fi
+
+# vim: set fdm=marker :