File: configure.ac

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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ([2.60])
AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
AC_CONFIG_SRCDIR(src/target_set.c)
AC_CONFIG_HEADERS(src/config.h)
AC_CONFIG_AUX_DIR([libltdl/config])

dnl older automake's default of ARFLAGS=cru is noisy on newer binutils;
dnl we don't really need the 'u' even in older toolchains.  Then there is
dnl older libtool, which spelled it AR_FLAGS
m4_divert_text([DEFAULTS], [: "${ARFLAGS=cr} ${AR_FLAGS=cr}"])

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_CONDITIONAL([BUILD_INCLUDED_LTDL], [test "x$LTDLDEPS" != "x"])

AM_INIT_AUTOMAKE([subdir-objects tar-pax dist-bzip2 no-dist-gzip 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_C99([],
  [AC_MSG_ERROR([No compiler found that supports C99])]
)
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_EGREP
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

AC_PATH_PROG([VALGRIND], [valgrind])

# Warn when pkg.m4 is missing
m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])

PKG_PROG_PKG_CONFIG

AC_CACHE_CHECK([if bison is the parser generator],
	[collectd_cv_prog_bison],
	[AS_IF([$YACC --version 2>/dev/null | $EGREP -q '^bison '],
		[collectd_cv_prog_bison=yes], [collectd_cv_prog_bison=no]
	)]
)

if test "x$collectd_cv_prog_bison" = "xno" && test ! -f "${srcdir}/src/liboconfig/parser.c"
then
	AC_MSG_ERROR([bison is missing and you do not have ${srcdir}/src/liboconfig/parser.c. Please install bison])
fi

AC_ARG_VAR([PROTOC], [path to the protoc binary])
AC_PATH_PROG([PROTOC], [protoc])
have_protoc3="no"
if test "x$PROTOC" != "x"; then
	AC_MSG_CHECKING([for protoc 3.0.0+])
	if $PROTOC --version | $EGREP libprotoc.3 >/dev/null; then
		protoc3="yes (`$PROTOC --version`)"
		have_protoc3="yes"
	else
		protoc3="no (`$PROTOC --version`)"
	fi
	AC_MSG_RESULT([$protoc3])
fi
AM_CONDITIONAL(HAVE_PROTOC3, test "x$have_protoc3" = "xyes")

AC_ARG_VAR([GRPC_CPP_PLUGIN], [path to the grpc_cpp_plugin binary])
AC_PATH_PROG([GRPC_CPP_PLUGIN], [grpc_cpp_plugin])
AM_CONDITIONAL(HAVE_GRPC_CPP, test "x$GRPC_CPP_PLUGIN" != "x")

AC_ARG_VAR([PROTOC_C], [path to the protoc-c binary])
AC_PATH_PROG([PROTOC_C], [protoc-c])
if test "x$PROTOC_C" = "x"
then
  have_protoc_c="no (protoc-c compiler not found)"
else
  have_protoc_c="yes"
fi

AC_MSG_CHECKING([for kernel type ($host_os)])
case $host_os in
	*linux*)
	AC_DEFINE([KERNEL_LINUX], 1, [True if program is to be compiled for a Linux kernel])
	ac_system="Linux"
	;;
	*solaris*)
	AC_DEFINE([KERNEL_SOLARIS], 1, [True if program is to be compiled for a Solaris kernel])
	ac_system="Solaris"
	;;
	*darwin*)
	AC_DEFINE([KERNEL_DARWIN], 1, [True if program is to be compiled for a Darwin kernel])
	ac_system="Darwin"
	;;
	*openbsd*)
	AC_DEFINE([KERNEL_OPENBSD], 1, [True if program is to be compiled for an OpenBSD kernel])
	ac_system="OpenBSD"
	;;
	*netbsd*)
	AC_DEFINE([KERNEL_NETBSD], 1, [True if program is to be compiled for a NetBSD kernel])
	ac_system="NetBSD"
	;;
	*aix*)
	AC_DEFINE([KERNEL_AIX], 1, [True if program is to be compiled for a AIX kernel])
	ac_system="AIX"
	;;
	*freebsd*)
	AC_DEFINE([KERNEL_FREEBSD], 1, [True if program is to be compiled for a FreeBSD kernel])
	ac_system="FreeBSD"
	;;
	*)
	ac_system="unknown"
esac
AC_MSG_RESULT([$ac_system])

AM_CONDITIONAL([BUILD_AIX], [test "x$ac_system" = "xAIX"])
AM_CONDITIONAL([BUILD_DARWIN], [test "x$ac_system" = "xDarwin"])
AM_CONDITIONAL([BUILD_FREEBSD], [test "x$ac_system" = "xFreeBSD"])
AM_CONDITIONAL([BUILD_LINUX], [test "x$ac_system" = "xLinux"])
AM_CONDITIONAL([BUILD_OPENBSD], [test "x$ac_system" = "xOpenBSD"])
AM_CONDITIONAL([BUILD_SOLARIS], [test "x$ac_system" = "xSolaris"])

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.])

	AC_MSG_CHECKING([whether compiler builds 64bit binaries])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
			   #ifndef _LP64
			   # error "Compiler not in 64bit mode."
			   #endif
			   ])],
			   [AC_MSG_RESULT([yes])],
			   [
			    AC_MSG_RESULT([no])
			    AC_MSG_NOTICE([Solaris detected. Please consider building a 64-bit binary.])
			   ])
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([ \
  arpa/inet.h \
  assert.h \
  ctype.h \
  endian.h \
  errno.h \
  fcntl.h \
  fnmatch.h \
  fs_info.h \
  fshelp.h \
  grp.h \
  kstat.h \
  kvm.h \
  libgen.h \
  limits.h \
  locale.h \
  math.h \
  mntent.h \
  mnttab.h \
  netdb.h \
  paths.h \
  poll.h \
  pthread_np.h \
  pwd.h \
  regex.h \
  signal.h \
  stdarg.h \
  stdio.h \
  sys/fs_types.h \
  sys/fstyp.h \
  sys/ioctl.h \
  sys/isa_defs.h \
  sys/mntent.h \
  sys/mnttab.h \
  sys/param.h \
  sys/resource.h \
  sys/select.h \
  sys/socket.h \
  sys/statfs.h \
  sys/statvfs.h \
  sys/types.h \
  sys/un.h \
  sys/vfs.h \
  sys/vfstab.h \
  sys/vmmeter.h \
  syslog.h \
  wordexp.h \
])

# For entropy plugin on newer NetBSD
AC_CHECK_HEADERS(sys/rndio.h, [], [],
[#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])

# 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
])

have_ip6_ext="no"
AC_CHECK_TYPES([struct ip6_ext], [have_ip6_ext="yes"], [have_ip6_ext="no"],
[#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
])

if test "x$have_ip6_ext" = "xno"; then
	SAVE_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS -DSOLARIS2=8"

	AC_CHECK_TYPES([struct ip6_ext],
		       [have_ip6_ext="yes, with -DSOLARIS2=8"],
		       [have_ip6_ext="no"],
[#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
])

	if test "x$have_ip6_ext" = "xno"; then
		CFLAGS="$SAVE_CFLAGS"
	fi
fi

# 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 >/dev/null 2>&1
	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

AC_MSG_CHECKING([for sysctl kern.cp_time])
if test -x /sbin/sysctl
then
	/sbin/sysctl kern.cp_time >/dev/null 2>&1
	if test $? -eq 0
	then
		AC_MSG_RESULT([yes])
		AC_DEFINE(HAVE_SYSCTL_KERN_CP_TIME, 1,
			[Define if sysctl supports kern.cp_time])
	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>
])
	AC_CHECK_HEADERS([sys/sysmacros.h])
else
	have_linux_raid_md_u_h="no"
fi

# For the wireless 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
])

# 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
])

# --enable-xfs {{{
AC_ARG_ENABLE([xfs],
  [AS_HELP_STRING([--enable-xfs], [xfs support in df plugin @<:@default=yes@:>@])],
  [],
  [enable_xfs="auto"]
)

if test "x$enable_xfs" != "xno"; then
  AC_CHECK_HEADERS([xfs/xqm.h],
    [],
    [
      if test "x$enable_xfs" = "xyes"; then
        AC_MSG_ERROR([xfs/xqm.h not found])
      fi
    ],
    [[#define _GNU_SOURCE]]
  )
fi

# }}}

# 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
])

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
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
])

# For the multimeter plugin
have_termios_h="no"
AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])

# For cpusleep plugin
AC_CACHE_CHECK([whether clock_boottime and clock_monotonic are supported],
		       [c_cv_have_clock_boottime_monotonic],
		       AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
#include <time.h>
]],
[[
 struct timespec b, m;
 clock_gettime(CLOCK_BOOTTIME, &b );
 clock_gettime(CLOCK_MONOTONIC, &m );
]]
		       )],
		       [c_cv_have_clock_boottime_monotonic="yes"],
		       [c_cv_have_clock_boottime_monotonic="no"]))


# 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_PKG_C10_RESIDENCY],
                 [c_cv_have_usable_asm_msrindex_h],
                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#include<asm/msr-index.h>
]]],
[[[
int y = MSR_PKG_C10_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"])

have_capability="yes"
AC_CHECK_HEADERS(sys/capability.h,
                 [have_capability="yes"],
                 [have_capability="no (<sys/capability.h> not found)"])
if test "x$have_capability" = "xyes"; then
AC_CHECK_LIB(cap, cap_get_bound,
                 [have_capability="yes"],
                 [have_capability="no (cap_get_bound() not found)"])
fi
if test "x$have_capability" = "xyes"; then
  AC_DEFINE(HAVE_CAPABILITY, 1, [Define to 1 if you have cap_get_bound() (-lcap).])
fi
AM_CONDITIONAL(BUILD_WITH_CAPABILITY, test "x$have_capability" = "xyes")

#
# Checks for typedefs, structures, and compiler characteristics.
#
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_HEADER_TIME

#
# Checks for library functions.
#
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 asprintf)

AC_FUNC_STRERROR_R

test_cxx_flags() {
	AC_LANG_PUSH([C++])
	AC_LANG_CONFTEST([
		AC_LANG_SOURCE([[int main(void){}]])
	])
	$CXX -c conftest.cpp $CXXFLAGS $@ > /dev/null 2> /dev/null
	ret=$?
	rm -f conftest.o
	AC_LANG_POP([C++])
	return $ret
}

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.])
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
])

# }}}

# --with-data-max-name-len {{{
AC_ARG_WITH(data-max-name-len, [AS_HELP_STRING([--with-data-max-name-len@<:@=VALUE@:>@], [Maximum length of data buffers])],
[
    if test "x$withval" != "x" && test $withval -gt 0
    then
        AC_DEFINE_UNQUOTED(DATA_MAX_NAME_LEN, [$withval], [Maximum length of data buffers])
    else
        AC_MSG_ERROR([DATA_MAX_NAME_LEN must be a positive integer -- $withval given])
    fi
],
[   AC_DEFINE(DATA_MAX_NAME_LEN, 128, [Maximum length of data buffers])]
)
# }}}

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_r="no"
AC_CHECK_FUNCS(getmntent_r, [have_getmntent_r="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 is the version from libsun.])
fi
if test "x$have_getmntent" = "xseq"; then
	AC_DEFINE(HAVE_SEQ_GETMNTENT, 1,
		  [Define if the function getmntent exists. It is the version from libseq.])
fi
if test "x$have_getmntent" = "xgen"; then
	AC_DEFINE(HAVE_GEN_GETMNTENT, 1,
		  [Define if the function getmntent exists. It is 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 kinfo_proc2.p_pid, struct kinfo_proc2.p_uru_maxrss],
	[
		AC_DEFINE(HAVE_STRUCT_KINFO_PROC2_NETBSD, 1,
			[Define if struct kinfo_proc2 exists in the NetBSD variant.])
		have_struct_kinfo_proc2_netbsd="yes"
	],
	[
		have_struct_kinfo_proc2_netbsd="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
	])

# check for pthread_setname_np
SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -lpthread"

AC_MSG_CHECKING([for pthread_setname_np])
	have_pthread_setname_np="no"
	AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[
#define _GNU_SOURCE
#include <pthread.h>
]],
[[
        pthread_setname_np((pthread_t) {0}, "conftest");
]]
	)], [
		have_pthread_setname_np="yes"
		AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [pthread_setname_np() is available.])
	])

AC_MSG_RESULT([$have_pthread_setname_np])

# check for pthread_set_name_np(3) (FreeBSD)
AC_MSG_CHECKING([for pthread_set_name_np])
	have_pthread_set_name_np="no"
	AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[
#include <pthread_np.h>
]],
[[
        pthread_set_name_np((pthread_t) {0}, "conftest");
]]
	)], [
		have_pthread_set_name_np="yes"
		AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [pthread_set_name_np() is available.])
	])
AC_MSG_RESULT([$have_pthread_set_name_np])

LDFLAGS="$SAVE_LDFLAGS"

#
# 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="no"
PKG_CHECK_MODULES([HAL], [hal],
  [
    SAVE_LIBS="$LIBS"
    LIBS="$HAL_LIBS $LIBS"
    AC_CHECK_LIB([hal], [libhal_device_property_exists],
      [
        SAVE_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$HAL_CFLAGS $CPPFLAGS"
        AC_CHECK_HEADERS([libhal.h],
        [
          with_libhal="yes"
          BUILD_WITH_LIBHAL_CFLAGS="$HAL_CFLAGS"
          BUILD_WITH_LIBHAL_LIBS="$HAL_LIBS"
        ])
        CPPFLAGS="$SAVE_CPPFLAGS"
      ],
      [ : ]
    )
    LIBS="$SAVE_LIBS"
  ],
  [ : ]
)
AC_SUBST(BUILD_WITH_LIBHAL_CFLAGS)
AC_SUBST(BUILD_WITH_LIBHAL_LIBS)


SAVE_LIBS="$LIBS"
AC_CHECK_LIB([pthread],
  [pthread_create],
  [],
  [AC_MSG_ERROR([Symbol 'pthread_create' not found in libpthread"])],
  []
)
PTHREAD_LIBS="$LIBS"
LIBS="$SAVE_LIBS"

AC_CHECK_HEADERS([pthread.h],
  [],
  [AC_MSG_ERROR([pthread.h not found])]
)
AC_SUBST([PTHREAD_LIBS])

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
	SAVE_CPPFLAGS="$CPPFLAGS"
	SAVE_LDFLAGS="$LDFLAGS"
	CPPFLAGS="$CPPFLAGS $with_curl_cflags"
	LDFLAGS="$LDFLAGS $with_curl_libs"
	AC_CACHE_CHECK([for CURLINFO_APPCONNECT_TIME],
		[c_cv_have_curlinfo_appconnect_time],
		AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[
#include <curl/curl.h>
]],
[[
int val = CURLINFO_APPCONNECT_TIME;
return val;
]]
			)],
			[c_cv_have_curlinfo_appconnect_time="yes"],
			[c_cv_have_curlinfo_appconnect_time="no"]
		)
	)
	CPPFLAGS="$SAVE_CPPFLAGS"
	LDFLAGS="$SAVE_LDFLAGS"
fi
AM_CONDITIONAL(BUILD_WITH_LIBCURL, test "x$with_libcurl" = "xyes")
if test "x$c_cv_have_curlinfo_appconnect_time" = "xyes"
then
	AC_DEFINE(HAVE_CURLINFO_APPCONNECT_TIME, 1, [Define if curl.h defines CURLINFO_APPCONNECT_TIME.])
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
# }}}

# --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$withval/lib"
	 with_libganglia="yes"
 else
	 with_libganglia="$withval"
 fi; fi; fi
],
[
 with_libganglia="yes"
])

if test "x$with_libganglia" = "xyes"
then
	if test "x$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
	else
		GANGLIA_LIBS="-lganglia"
	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$GCRYPT_LIBS" = "x"
	then
		GCRYPT_LIBS=`"$with_libgcrypt_config" --libs 2>/dev/null`
	fi
fi

SAVE_CPPFLAGS="$CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
SAVE_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $GCRYPT_CPPFLAGS"
LDFLAGS="$LDFLAGS $GCRYPT_LDFLAGS"
LIBS="$LIBS $GCRYPT_LIBS"

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
	AC_CHECK_LIB(gcrypt, gcry_md_hash_buffer,
		[with_libgcrypt="yes"],
		[with_libgcrypt="no (symbol gcry_md_hash_buffer not found)"])
fi

CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
LIBS="$SAVE_LIBS"

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-libgps {{{
with_libgps_cflags=""
with_libgps_ldflags=""
AC_ARG_WITH(libgps, [AS_HELP_STRING([--with-libgps@<:@=PREFIX@:>@], [Path to libgps.])],
[
	if test "x$withval" != "xno" && test "x$withval" != "xyes"
	then
		with_libgps_cflags="-I$withval/include"
		with_libgps_ldflags="-L$withval/lib"
		with_libgps="yes"
	else
		with_libgps="$withval"
	fi
],
[
	with_libgps="yes"
])
if test "x$with_libgps" = "xyes"
then
	SAVE_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS $with_libgps_cflags"

	AC_CHECK_HEADERS(gps.h, [with_libgps="yes"], [with_libgps="no (gps.h not found)"])

	CFLAGS="$SAVE_CFLAGS"
fi
if test "x$with_libgps" = "xyes"
then
	SAVE_CFLAGS="$CFLAGS"
	SAVE_LDFLAGS="$LDFLAGS"
	CFLAGS="$CFLAGS $with_libgps_cflags"
	LDFLAGS="$LDFLAGS $with_libgps_ldflags"

	AC_CHECK_LIB(gps, gps_open, [with_libgps="yes"], [with_libgps="no (symbol gps_open not found)"])

	CFLAGS="$SAVE_CFLAGS"
	LDFLAGS="$SAVE_LDFLAGS"
fi
if test "x$with_libgps" = "xyes"
then
	BUILD_WITH_LIBGPS_CFLAGS="$with_libgps_cflags"
	BUILD_WITH_LIBGPS_LDFLAGS="$with_libgps_ldflags"
	BUILD_WITH_LIBGPS_LIBS="-lgps"
	AC_SUBST(BUILD_WITH_LIBGPS_CFLAGS)
	AC_SUBST(BUILD_WITH_LIBGPS_LDFLAGS)
	AC_SUBST(BUILD_WITH_LIBGPS_LIBS)
fi
AM_CONDITIONAL(BUILD_WITH_LIBGPS, test "x$with_libgps" = "xyes")
# }}}

# --with-libgrpc++ {{{
with_libgrpcpp_cppflags=""
with_libgrpcpp_ldflags=""
AC_ARG_WITH([libgrpc++], [AS_HELP_STRING([--with-libgrpc++@<:@=PREFIX@:>@], [Path to libgrpc++.])],
  [
    with_grpcpp="$withval"
    if test "x$withval" != "xno" && test "x$withval" != "xyes"
    then
      with_libgrpcpp_cppflags="-I$withval/include"
      with_libgrpcpp_ldflags="-L$withval/lib"
      with_libgrpcpp="yes"
    fi
    if test "x$withval" = "xno"
    then
      with_libgrpcpp="no (disabled on command line)"
    fi
  ],
  [withval="yes"]
)
if test "x$withval" = "xyes"
then
PKG_CHECK_MODULES([GRPCPP], [grpc++],
  [with_libgrpcpp="yes"],
  [with_libgrpcpp="no (pkg-config could not find libgrpc++)"]
)
fi

if test "x$withval" != "xno"
then
  AC_MSG_CHECKING([whether $CXX accepts -std=c++11])
  if test_cxx_flags -std=c++11; then
    AC_MSG_RESULT([yes])
  else
    AC_MSG_RESULT([no])
    with_libgrpcpp="no (requires C++11 support)"
  fi
fi

if test "x$with_libgrpcpp" = "xyes"
then
  AC_LANG_PUSH(C++)
  SAVE_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="-std=c++11 $with_libgrpcpp_cppflags $GRPCPP_CFLAGS $CPPFLAGS"
  AC_CHECK_HEADERS([grpc++/grpc++.h], [],
    [with_libgrpcpp="no (<grpc++/grpc++.h> not found)"]
  )
  CPPFLAGS="$SAVE_CPPFLAGS"
  AC_LANG_POP(C++)
fi
if test "x$with_libgrpcpp" = "xyes"
then
  AC_LANG_PUSH(C++)
  SAVE_CPPFLAGS="$CPPFLAGS"
  SAVE_LDFLAGS="$LDFLAGS"
  SAVE_LIBS="$LIBS"
  CPPFLAGS="-std=c++11 $with_libgrpcpp_cppflags $GRPCPP_CFLAGS $CPPFLAGS"
  LDFLAGS="$with_libgrpcpp_ldflags"
  if test "x$GRPCPP_LIBS" = "x"
  then
    LIBS="-lgrpc++"
  else
    LIBS="$GRPCPP_LIBS"
  fi
  AC_LINK_IFELSE(
    [AC_LANG_PROGRAM(
      [[#include <grpc++/grpc++.h>]],
      [[grpc::ServerBuilder sb;]]
    )],
    [
      with_libgrpcpp="yes"
      if test "x$GRPCPP_LIBS" = "x"
      then
        GRPCPP_LIBS="-lgrpc++"
      fi
    ],
    [with_libgrpcpp="no (libgrpc++ not found)"]
  )
  CPPFLAGS="$SAVE_CPPFLAGS"
  LDFLAGS="$SAVE_LDFLAGS"
  LIBS="$SAVE_LIBS"
  AC_LANG_POP(C++)
fi
BUILD_WITH_LIBGRPCPP_CPPFLAGS="-std=c++11 $with_libgrpcpp_cppflags $GRPCPP_CFLAGS"
BUILD_WITH_LIBGRPCPP_LDFLAGS="$with_libgrpcpp_ldflags"
BUILD_WITH_LIBGRPCPP_LIBS="$GRPCPP_LIBS"
AC_SUBST([BUILD_WITH_LIBGRPCPP_CPPFLAGS])
AC_SUBST([BUILD_WITH_LIBGRPCPP_LDFLAGS])
AC_SUBST([BUILD_WITH_LIBGRPCPP_LIBS])
# }}}

# --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"
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-libdpdk {{{
AC_ARG_VAR([LIBDPDK_CPPFLAGS], [Preprocessor flags for libdpdk])
AC_ARG_VAR([LIBDPDK_LDFLAGS], [Linker flags for libdpdk])

AC_ARG_WITH([libdpdk], [AS_HELP_STRING([--without-libdpdk], [Disable libdpdk.])])

if test "x$with_libdpdk" != "xno"
then
	if test "x$LIBDPDK_CPPFLAGS" = "x"
	then
		LIBDPDK_CPPFLAGS="-I/usr/include/dpdk"
	fi
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$LIBDPDK_CPPFLAGS $CPPFLAGS"
	AC_CHECK_HEADERS([rte_config.h],
		[with_libdpdk="yes"],
		[with_libdpdk="no (rte_config.h not found)"]
	)
	CPPFLAGS="$SAVE_CPPFLAGS"
fi

if test "x$with_libdpdk" = "xyes"
then
	SAVE_LDFLAGS="$LDFLAGS"
	LDFLAGS="$LIBDPDK_LDFLAGS $LDFLAGS"
	AC_CHECK_LIB([dpdk], [rte_eal_init],
		[with_libdpdk="yes"],
		[with_libdpdk="no (symbol 'rte_eal_init' not found)"]
	)
	LDFLAGS="$SAVE_LDFLAGS"
fi

# }}}

# --with-java {{{
with_java_home="$JAVA_HOME"
if test "x$with_java_home" = "x"
then
	with_java_home="/usr/lib/jvm"
fi
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 | LC_ALL=C sort | 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 "$with_java_home" -name jni_md.h -type f -exec 'dirname' '{}' ';' 2>/dev/null | LC_ALL=C sort | head -n 1`
		if test "x$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" -type f \( -name libjvm.so -o -name libjvm.dylib \) -exec 'dirname' '{}' ';' 2>/dev/null | LC_ALL=C sort | 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 | LC_ALL=C sort | 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 "$with_java_home" -name jar -type f 2>/dev/null | LC_ALL=C sort | head -n 1`
			if test "x$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: $JAVA_LDFLAGS])
fi
if test "x$JAVA_LIBS" != "x"
then
	AC_MSG_NOTICE([Building with JAVA_LIBS set to: $JAVA_LIBS])
fi
if test "x$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="$LDFLAGS"
SAVE_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $JAVA_CPPFLAGS"
CFLAGS="$CFLAGS $JAVA_CFLAGS"
LDFLAGS="$LDFLAGS $JAVA_LDFLAGS"
LIBS="$LIBS $JAVA_LIBS"

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 (Symbol 'JNI_CreateJavaVM' not found)"],
	[$JAVA_LIBS $PTHREAD_LIBS])
fi
if test "x$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="$SAVE_LDFLAGS"
LIBS="$SAVE_LIBS"

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-liblua {{{
AC_ARG_VAR([LIBLUA_PKG_CONFIG_NAME], [Name of liblua used by pkg-config])
if test "x$LIBLUA_PKG_CONFIG_NAME" != "x"
then
  PKG_CHECK_MODULES([LUA], [$LIBLUA_PKG_CONFIG_NAME],
    [with_liblua="yes"],
    [with_liblua="no"]
  )
else
  PKG_CHECK_MODULES([LUA], [lua],
    [with_liblua="yes"],
    [
      PKG_CHECK_MODULES([LUA], [lua-5.3],
        [with_liblua="yes"],
        [
	  PKG_CHECK_MODULES([LUA], [lua5.3],
            [with_liblua="yes"],
            [
              PKG_CHECK_MODULES([LUA], [lua-5.2],
                [with_liblua="yes"],
                [
                  PKG_CHECK_MODULES([LUA], [lua5.2],
                    [with_liblua="yes"],
                    [
                      PKG_CHECK_MODULES([LUA], [lua-5.1],
                        [with_liblua="yes"],
                        [
                          PKG_CHECK_MODULES([LUA], [lua5.1],
                            [with_liblua="yes"],
                            [with_liblua="no (pkg-config cannot find liblua)"]
                          )
                        ]
                      )
                    ]
                  )
                ]
              )
            ]
          )
        ]
      )
    ]
  )
fi

if test "x$with_liblua" = "xyes"
then
  SAVE_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$CPPFLAGS $LUA_CFLAGS"

  AC_CHECK_HEADERS([lua.h lauxlib.h lualib.h],
    [with_liblua="yes"],
    [with_liblua="no (header not found)"]
  )

  CPPFLAGS="$SAVE_CPPFLAGS"
fi

if test "x$with_liblua" = "xyes"
then
  SAVE_LIBS="$LIBS"
  LIBS="$LIBS $LUA_LIBS"

  AC_CHECK_FUNC([lua_settop],
    [with_liblua="yes"],
    [with_liblua="no (symbol 'lua_settop' not found)"]
  )

  LIBS="$SAVE_LIBS"
fi

if test "x$with_liblua" = "xyes"
then
    BUILD_WITH_LIBLUA_CFLAGS="$LUA_CFLAGS"
    BUILD_WITH_LIBLUA_LIBS="$LUA_LIBS"
fi
AC_SUBST(BUILD_WITH_LIBLUA_CFLAGS)
AC_SUBST(BUILD_WITH_LIBLUA_LIBS)
# }}}

# --with-liblvm2app {{{
with_liblvm2app_cppflags=""
with_liblvm2app_ldflags=""
AC_ARG_WITH(liblvm2app, [AS_HELP_STRING([--with-liblvm2app@<:@=PREFIX@:>@], [Path to liblvm2app.])],
[
	if test "x$withval" = "xno"
	then
		with_liblvm2app="no"
	else
		with_liblvm2app="yes"
		if test "x$withval" != "xyes"
		then
			with_liblvm2app_cppflags="-I$withval/include"
			with_liblvm2app_ldflags="-L$withval/lib"
		fi
        fi
],
[
	if test "x$ac_system" = "xLinux"
	then
		with_liblvm2app="yes"
	else
		with_liblvm2app="no (Linux only library)"
	fi
])
if test "x$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-libmicrohttpd {{{
with_libmicrohttpd_cppflags=""
with_libmicrohttpd_ldflags=""
AC_ARG_WITH([libmicrohttpd], [AS_HELP_STRING([--with-libmicrohttpd@<:@=PREFIX@:>@], [Path to libmicrohttpd.])],
  [
    if test "x$withval" != "xno" && test "x$withval" != "xyes"
    then
      with_libmicrohttpd_cppflags="-I$withval/include"
      with_libmicrohttpd_ldflags="-L$withval/lib"
      with_libmicrohttpd="yes"
    fi
    if test "x$withval" = "xno"
    then
      with_libmicrohttpd="no (disabled on command line)"
    fi
  ],
  [withval="yes"]
)
if test "x$withval" = "xyes"
then
PKG_CHECK_MODULES([MICROHTTPD], [libmicrohttpd],
  [with_libmicrohttpd="yes"],
  [with_libmicrohttpd="no (pkg-config could not find libmicrohttpd)"]
)
fi

if test "x$MICROHTTPD_LIBS" = "x"
then
  MICROHTTPD_LIBS="-lmicrohttpd"
fi

SAVE_CPPFLAGS="$CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
SAVE_LIBS="$LIBS"
CPPFLAGS="$with_libmicrohttpd_cppflags $MICROHTTPD_CFLAGS"
LDFLAGS="$with_libmicrohttpd_ldflags $LDFLAGS"
LIBS="$LIBS $MICROHTTPD_LIBS"

if test "x$with_libmicrohttpd" = "xyes"
then
  AC_CHECK_HEADERS([microhttpd.h],
                   [with_libmicrohttpd="yes"],
                   [with_libmicrohttpd="no (<microhttpd.h> not found)"])
fi

if test "x$with_libmicrohttpd" = "xyes"
then
  AC_CHECK_LIB([microhttpd], [MHD_start_daemon],
               [with_libmicrohttpd="yes"],
               [with_libmicrohttpd="no (libmicrohttpd not found)"])
fi

CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
LIBS="$SAVE_LIBS"

BUILD_WITH_LIBMICROHTTPD_CPPFLAGS="$with_libmicrohttpd_cppflags $MICROHTTPD_CFLAGS"
BUILD_WITH_LIBMICROHTTPD_LDFLAGS="$with_libmicrohttpd_ldflags"
BUILD_WITH_LIBMICROHTTPD_LIBS="$MICROHTTPD_LIBS"
AC_SUBST([BUILD_WITH_LIBMICROHTTPD_CPPFLAGS])
AC_SUBST([BUILD_WITH_LIBMICROHTTPD_LDFLAGS])
AC_SUBST([BUILD_WITH_LIBMICROHTTPD_LIBS])
# }}}

# --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
	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.h, [], [with_libmodbus="no (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-libmosquitto {{{
with_libmosquitto_cppflags=""
with_libmosquitto_ldflags=""
AC_ARG_WITH(libmosquitto, [AS_HELP_STRING([--with-libmosquitto@<:@=PREFIX@:>@], [Path to libmosquitto.])],
[
	if test "x$withval" != "xno" && test "x$withval" != "xyes"
	then
		with_libmosquitto_cppflags="-I$withval/include"
		with_libmosquitto_ldflags="-L$withval/lib"
		with_libmosquitto="yes"
	else
		with_libmosquitto="$withval"
	fi
],
[
	with_libmosquitto="yes"
])
if test "x$with_libmosquitto" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libmosquitto_cppflags"

	AC_CHECK_HEADERS(mosquitto.h, [with_libmosquitto="yes"], [with_libmosquitto="no (mosquitto.h not found)"])

	CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libmosquitto" = "xyes"
then
	SAVE_LDFLAGS="$LDFLAGS"
	SAVE_CPPFLAGS="$CPPFLAGS"
	LDFLAGS="$LDFLAGS $with_libmosquitto_ldflags"
	CPPFLAGS="$CPPFLAGS $with_libmosquitto_cppflags"

	AC_CHECK_LIB(mosquitto, mosquitto_connect, [with_libmosquitto="yes"], [with_libmosquitto="no (libmosquitto not found)"])

	LDFLAGS="$SAVE_LDFLAGS"
	CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libmosquitto" = "xyes"
then
	BUILD_WITH_LIBMOSQUITTO_CPPFLAGS="$with_libmosquitto_cppflags"
	BUILD_WITH_LIBMOSQUITTO_LDFLAGS="$with_libmosquitto_ldflags"
	BUILD_WITH_LIBMOSQUITTO_LIBS="-lmosquitto"
	AC_SUBST(BUILD_WITH_LIBMOSQUITTO_CPPFLAGS)
	AC_SUBST(BUILD_WITH_LIBMOSQUITTO_LDFLAGS)
	AC_SUBST(BUILD_WITH_LIBMOSQUITTO_LIBS)
fi
# }}}

# --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=`$with_mysql_config --include 2>/dev/null`
	mysql_config_status=$?

	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
		SAVE_CPPFLAGS="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $with_mysql_cflags"
		SAVE_LIBS="$LIBS"
		LIBS="$with_mysql_libs"
		AC_SEARCH_LIBS([mysql_get_server_version],
		 [],
		 [with_libmysql="yes"],
		 [with_libmysql="no (symbol 'mysql_get_server_version' not found)"],
		 [])
		CPPFLAGS="$SAVE_CPPFLAGS"
		LIBS="$SAVE_LIBS"
	fi
fi
if test "x$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$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$LIBNETAPP_LIBS" = "x"
	then
		LIBNETAPP_LIBS="$PTHREAD_LIBS -lxml -ladt -lm -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 {{{
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
		with_libnetsnmp_cppflags="-I$withval/include"
		with_libnetsnmp_ldflags="-I$withval/lib"
		with_libnetsnmp="yes"
	fi; fi
],
[with_libnetsnmp="yes"])
if test "x$with_libnetsnmp" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libnetsnmp_cppflags"

	AC_CHECK_HEADERS(net-snmp/net-snmp-config.h, [], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])

	CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libnetsnmp" = "xyes"
then
	SAVE_LDFLAGS="$LDFLAGS"
	LDFLAGS="$LDFLAGS $with_libnetsnmp_ldflags"

	AC_CHECK_LIB(netsnmp, init_snmp,
		[with_libnetsnmp="yes"],
		[with_libnetsnmp="no (libnetsnmp not found)"],
		[$with_snmp_libs])

	LDFLAGS="$SAVE_LDFLAGS"
fi
if test "x$with_libnetsnmp" = "xyes"
then
	BUILD_WITH_LIBNETSNMP_CPPFLAGS="$with_libnetsnmp_cppflags"
	BUILD_WITH_LIBNETSNMP_LDFLAGS="$with_libnetsnmp_ldflags"
	BUILD_WITH_LIBNETSNMP_LIBS="-lnetsnmp"
fi
AC_SUBST(BUILD_WITH_LIBNETSNMP_CPPFLAGS)
AC_SUBST(BUILD_WITH_LIBNETSNMP_LDFLAGS)
AC_SUBST(BUILD_WITH_LIBNETSNMP_LIBS)
# }}}

# --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_file,
[
	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$with_oracle" = "xyes"
then
	BUILD_WITH_ORACLE_CPPFLAGS="$with_oracle_cppflags"
	BUILD_WITH_ORACLE_LIBS="$with_oracle_libs"
	AC_SUBST(BUILD_WITH_ORACLE_CPPFLAGS)
	AC_SUBST(BUILD_WITH_ORACLE_LIBS)
fi
# }}}

# --with-libowcapi {{{
with_libowcapi_cppflags=""
with_libowcapi_ldflags=""
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$withval/include"
		with_libowcapi_ldflags="-L$withval/lib"
		with_libowcapi="yes"
	else
		with_libowcapi="$withval"
	fi
],
[
	with_libowcapi="yes"
])
if test "x$with_libowcapi" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$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="$LDFLAGS $with_libowcapi_ldflags"
	CPPFLAGS="$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_LDFLAGS="$with_libowcapi_ldflags"
	BUILD_WITH_LIBOWCAPI_LIBS="-lowcapi"
	AC_SUBST(BUILD_WITH_LIBOWCAPI_CPPFLAGS)
	AC_SUBST(BUILD_WITH_LIBOWCAPI_LDFLAGS)
	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_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 perl_inc`
  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-libpqos {{{
with_libpqos_cppflags=""
with_libpqos_ldflags=""
AC_ARG_WITH(libpqos, [AS_HELP_STRING([--with-libpqos@<:@=PREFIX@:>@], [Path to libpqos.])],
[
	if test "x$withval" != "xno" && test "x$withval" != "xyes"
	then
		with_libpqos_cppflags="-I$withval/include"
		with_libpqos_ldflags="-L$withval/lib"
		with_libpqos="yes"
	else
		with_libpqos="$withval"
	fi
],
[
	with_libpqos="yes"
])
if test "x$with_libpqos" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libpqos_cppflags"

	AC_CHECK_HEADERS(pqos.h, [with_libpqos="yes"], [with_libpqos="no (pqos.h not found)"])

	CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libpqos" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	SAVE_LDFLAGS="$LDFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libpqos_cppflags"
	LDFLAGS="$LDFLAGS $with_libpqos_ldflags"

	AC_CHECK_LIB(pqos, pqos_init, [with_libpqos="yes"], [with_libpqos="no (Can't find libpqos)"])

	CPPFLAGS="$SAVE_CPPFLAGS"
	LDFLAGS="$SAVE_LDFLAGS"
fi
if test "x$with_libpqos" = "xyes"
then
  SAVE_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$CPPFLAGS $with_libpqos_cppflags"
  AC_RUN_IFELSE([AC_LANG_PROGRAM(
    [[#include <pqos.h>]],
    [[return !(PQOS_VERSION >= 106)]])],
    [with_libpqos="yes"], [with_libpqos="no (pqos library version 1.06 or higher is required)"])
  CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libpqos" = "xyes"
then
	BUILD_WITH_LIBPQOS_CPPFLAGS="$with_libpqos_cppflags"
	BUILD_WITH_LIBPQOS_LDFLAGS="$with_libpqos_ldflags"
	BUILD_WITH_LIBPQOS_LIBS="-lpqos"
	AC_SUBST(BUILD_WITH_LIBPQOS_CPPFLAGS)
	AC_SUBST(BUILD_WITH_LIBPQOS_LDFLAGS)
	AC_SUBST(BUILD_WITH_LIBPQOS_LIBS)
fi
# }}}

# --with-libprotobuf {{{
with_libprotobuf_cppflags=""
with_libprotobuf_ldflags=""
AC_ARG_WITH([libprotobuf], [AS_HELP_STRING([--with-libprotobuf@<:@=PREFIX@:>@], [Path to libprotobuf.])],
  [
    if test "x$withval" != "xno" && test "x$withval" != "xyes"
    then
      with_libprotobuf_cppflags="-I$withval/include"
      with_libprotobuf_ldflags="-L$withval/lib"
      with_libprotobuf="yes"
    fi
    if test "x$withval" = "xno"
    then
      with_libprotobuf="no (disabled on command line)"
    fi
  ],
  [withval="yes"]
)
if test "x$withval" = "xyes"
then
PKG_CHECK_MODULES([PROTOBUF], [protobuf],
  [with_libprotobuf="yes"],
  [with_libprotobuf="no (pkg-config could not find libprotobuf)"]
)
fi

if test "x$withval" != "xno"
then
  SAVE_LDFLAGS="$LDFLAGS"
  SAVE_LIBS="$LIBS"
  LDFLAGS="$with_libprotobuf_ldflags"
  LIBS="$PROTOBUF_LIBS $LIBS"
  AC_LANG_PUSH([C++])
  AC_CHECK_LIB([protobuf], [main],
    [
      SAVE_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$with_libprotobuf_cppflags $PROTOBUF_CFLAGS"
      if test "x$PROTOBUF_LIBS" = "x"
      then
        PROTOBUF_LIBS="-lprotobuf"
      fi
      AC_CHECK_HEADERS([google/protobuf/util/time_util.h],
        [with_libprotobuf="yes"],
        [with_libprotobuf="no (<google/protobuf/util/time_util.h> not found)"]
      )
      CPPFLAGS="$SAVE_CPPFLAGS"
    ],
    [with_libprotobuf="no (libprotobuf not found)"]
  )
  AC_LANG_POP([C++])
  LDFLAGS="$SAVE_LDFLAGS"
  LIBS="$SAVE_LIBS"
fi
BUILD_WITH_LIBPROTOBUF_CPPFLAGS="$with_libprotobuf_cppflags $PROTOBUF_CFLAGS"
BUILD_WITH_LIBPROTOBUF_LDFLAGS="$with_libprotobuf_ldflags"
BUILD_WITH_LIBPROTOBUF_LIBS="$PROTOBUF_LIBS"
AC_SUBST([BUILD_WITH_LIBPROTOBUF_CPPFLAGS])
AC_SUBST([BUILD_WITH_LIBPROTOBUF_LDFLAGS])
AC_SUBST([BUILD_WITH_LIBPROTOBUF_LIBS])
# }}}

# --with-libprotobuf-c {{{
with_libprotobuf_c_cppflags=""
with_libprotobuf_c_ldflags=""
AC_ARG_WITH([libprotobuf-c], [AS_HELP_STRING([--with-libprotobuf-c@<:@=PREFIX@:>@], [Path to libprotobuf-c.])],
  [
    if test "x$withval" != "xno" && test "x$withval" != "xyes"
    then
      with_libprotobuf_c_cppflags="-I$withval/include"
      with_libprotobuf_c_ldflags="-L$withval/lib"
      with_libprotobuf_c="yes"
    fi
    if test "x$withval" = "xno"
    then
      with_libprotobuf_c="no (disabled on command line)"
    fi
  ],
  [withval="yes"]
)
if test "x$withval" = "xyes"
then
PKG_CHECK_MODULES([PROTOBUF_C], [libprotobuf-c],
  [with_libprotobuf_c="yes"],
  [with_libprotobuf_c="no (pkg-config could not find libprotobuf-c)"]
)
fi

if test "x$withval" != "xno"
then
  SAVE_LDFLAGS="$LDFLAGS"
  SAVE_LIBS="$LIBS"
  LDFLAGS="$with_libprotobuf_c_ldflags"
  LIBS="$PROTOBUF_C_LIBS $LIBS"
  AC_CHECK_LIB([protobuf-c], [protobuf_c_message_pack],
    [
      SAVE_CPPFLAGS="$CPPFLAGS"
      CPPFLAGS="$with_libprotobuf_c_cppflags $PROTOBUF_C_CFLAGS"
      if test "x$PROTOBUF_C_LIBS" = "x"
      then
        PROTOBUF_C_LIBS="-lprotobuf-c"
      fi
      AC_CHECK_HEADERS([protobuf-c/protobuf-c.h google/protobuf-c/protobuf-c.h],
        [
          with_libprotobuf_c="yes"
          break
        ],
        [with_libprotobuf_c="no (<protobuf-c.h> not found)"]
      )
      CPPFLAGS="$SAVE_CPPFLAGS"
    ],
    [with_libprotobuf_c="no (libprotobuf-c not found)"]
  )
  LDFLAGS="$SAVE_LDFLAGS"
  LIBS="$SAVE_LIBS"
fi
BUILD_WITH_LIBPROTOBUF_C_CPPFLAGS="$with_libprotobuf_c_cppflags $PROTOBUF_C_CFLAGS"
BUILD_WITH_LIBPROTOBUF_C_LDFLAGS="$with_libprotobuf_c_ldflags"
BUILD_WITH_LIBPROTOBUF_C_LIBS="$PROTOBUF_C_LIBS"
AC_SUBST([BUILD_WITH_LIBPROTOBUF_C_CPPFLAGS])
AC_SUBST([BUILD_WITH_LIBPROTOBUF_C_LDFLAGS])
AC_SUBST([BUILD_WITH_LIBPROTOBUF_C_LIBS])
# }}}

# --with-libpython {{{
AC_ARG_VAR([LIBPYTHON_CPPFLAGS], [Preprocessor flags for libpython])
AC_ARG_VAR([LIBPYTHON_LDFLAGS], [Linker flags for libpython])
AC_ARG_VAR([LIBPYTHON_LIBS], [Libraries for libpython])

AC_ARG_WITH([libpython],
  [AS_HELP_STRING([--with-libpython],
    [if we should build with libpython @<:@default=yes@:>@])
  ],
  [with_libpython="$withval"],
  [with_libpython="check"]
)
if test "$with_libpython" != "no"; then
  if test "$LIBPYTHON_CPPFLAGS" = "" && test "$LIBPYTHON_LDFLAGS" = ""; then
    AC_ARG_VAR([PYTHON_CONFIG], [path to python-config])
    AC_PATH_PROGS([PYTHON_CONFIG],
      [python3-config python2-config python-config]
    )
    if test "$PYTHON_CONFIG" = ""; then
      if test "$with_libpython" = "yes"; then
        AC_MSG_ERROR([Unable to find python-config])
      fi
      with_libpython="no"
    fi
  fi
fi

if test "$PYTHON_CONFIG" != ""; then
  LIBPYTHON_CPPFLAGS="`${PYTHON_CONFIG} --includes`"
  if test $? -ne 0; then
    with_libpython="no"
  fi
  LIBPYTHON_LDFLAGS="`${PYTHON_CONFIG} --ldflags`"
  if test $? -ne 0; then
    with_libpython="no"
  fi
  LIBPYTHON_LIBS="`${PYTHON_CONFIG} --libs`"
  if test $? -ne 0; then
    with_libpython="no"
  fi
fi

if test "$with_libpython" != "xno"; then
  SAVE_CPPFLAGS="$CPPFLAGS"
  SAVE_LDFLAGS="$LDFLAGS"
  SAVE_LIBS="$LIBS"
  CPPFLAGS="$LIBPYTHON_CPPFLAGS $CPPFLAGS"
  LDFLAGS="$LIBPYTHON_LDFLAGS $LDFLAGS"
  LIBS="$LIBPYTHON_LIBS $LIBS"
  AC_CHECK_HEADERS([Python.h],
    [
      AC_MSG_CHECKING([for libpython])
      AC_LINK_IFELSE([AC_LANG_PROGRAM(
          [[#include <Python.h>]],
          [[Py_Initialize();]])
        ],
        [with_libpython="yes"],
        [with_libpython="no"]
      )
      AC_MSG_RESULT([$with_libpython])
    ],
    [with_libpython="no"]
  )
  CPPFLAGS="$SAVE_CPPFLAGS"
  LDFLAGS="$SAVE_LDFLAGS"
  LIBS="$SAVE_LIBS"
fi
# }}} --with-libpython

# --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$with_librdkafka_log_cb" = "xyes"
  then
        AC_DEFINE(HAVE_LIBRDKAFKA_LOG_CB, 1, [Define if librdkafka log facility is present and usable.])
  else if test "x$with_librdkafka_logger" = "xyes"
  then
        AC_DEFINE(HAVE_LIBRDKAFKA_LOGGER, 1, [Define if librdkafka log facility is present and usable.])
  fi; fi
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 {{{
librrd_cflags=""
librrd_ldflags=""
librrd_threadsafe="no"
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$with_librrd" = "xyes"
then
  SAVE_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS $librrd_ldflags"
  PKG_CHECK_MODULES([RRD], [librrd >= 1.6.0],
    [
      AC_CHECK_LIB([rrd], [rrd_update_r],
        [librrd_threadsafe="yes"],
        [:]
      )
      AC_CHECK_LIB([rrd], [rrdc_update],
        [librrd_rrdc_update="yes"],
        [:]
      )
    ],[:]
  )
  LDFLAGS="$SAVE_LDFLAGS"

  SAVE_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$CPPFLAGS $RRD_CFLAGS $librrd_cflags"

  AC_CHECK_HEADERS([rrd.h],, [with_librrd="no (rrd.h not found)"])

  CPPFLAGS="$SAVE_CPPFLAGS"
fi

if test "x$with_librrd" = "xyes" && test "x$librrd_threadsafe" = "xno"
then
  SAVE_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS $librrd_ldflags"

  AC_CHECK_LIB([rrd_th], [rrd_update_r],
    [
      librrd_ldflags="$librrd_ldflags -lrrd_th"
      librrd_threadsafe="yes"
      AC_CHECK_LIB([rrd_th], [rrdc_update],
        [librrd_rrdc_update="yes"],
        [:],
      )
    ],
    [:]
  )
  LDFLAGS="$SAVE_LDFLAGS"
fi

if test "x$with_librrd" = "xyes" && test "x$librrd_threadsafe" = "xno"
then
  SAVE_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS $librrd_ldflags"

  AC_CHECK_LIB([rrd], [rrd_update],
    [
      librrd_ldflags="$librrd_ldflags -lrrd"
      AC_CHECK_LIB([rrd], [rrdc_update],
        [librrd_rrdc_update="yes"],
        [:]
      )
    ],
    [with_librrd="no (symbol 'rrd_update' not found)"]
  )
  LDFLAGS="$SAVE_LDFLAGS"
fi

if test "x$with_librrd" = "xyes"
then
  BUILD_WITH_LIBRRD_CFLAGS="$RRD_CFLAGS $librrd_cflags"
  BUILD_WITH_LIBRRD_LDFLAGS="$librrd_ldflags"
  BUILD_WITH_LIBRRD_LIBS="$RRD_LIBS"
  AC_SUBST(BUILD_WITH_LIBRRD_CFLAGS)
  AC_SUBST(BUILD_WITH_LIBRRD_LDFLAGS)
  AC_SUBST(BUILD_WITH_LIBRRD_LIBS)
fi
if test "x$librrd_threadsafe" = "xyes"
then
  AC_DEFINE([HAVE_THREADSAFE_LIBRRD], [1],
    [Define to 1 if the rrd library is thread-safe]
  )
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, [], [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")
# }}}

# libsigrok {{{
AC_SUBST([LIBSIGROK_CFLAGS])
AC_SUBST([LIBSIGROK_LIBS])
PKG_CHECK_MODULES([LIBSIGROK], [libsigrok < 0.4],
  [with_libsigrok="yes"],
  [with_libsigrok="no (pkg-config could not find libsigrok)"]
)
# }}}

# --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
  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])
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_LDFLAGS="$LDFLAGS"
  SAVE_LIBS="$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="$with_libudev_ldflags"
	BUILD_WITH_LIBUDEV_LIBS="-ludev"
	AC_SUBST(BUILD_WITH_LIBUDEV_CFLAGS)
	AC_SUBST(BUILD_WITH_LIBUDEV_LDFLAGS)
	AC_SUBST(BUILD_WITH_LIBUDEV_LIBS)
fi
AM_CONDITIONAL(BUILD_WITH_LIBUDEV, test "x$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
	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-libxenctrl {{{
with_libxenctrl_cppflags=""
with_libxenctrl_ldflags=""
AC_ARG_WITH(libxenctrl, [AS_HELP_STRING([--with-libxenctrl@<:@=PREFIX@:>@], [Path to libxenctrl.])],
[
	if test "x$withval" != "xno" && test "x$withval" != "xyes"
	then
		with_libxenctrl_cppflags="-I$withval/include"
		with_libxenctrl_ldflags="-L$withval/lib"
		with_libxenctrl="yes"
	else
		with_libxenctrl="$withval"
	fi
],
[
	with_libxenctrl="yes"
])
if test "x$with_libxenctrl" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libxenctrl_cppflags"

	AC_CHECK_HEADERS(xenctrl.h, [with_libxenctrl="yes"], [with_libxenctrl="no (xenctrl.h not found)"])

	CPPFLAGS="$SAVE_CPPFLAGS"
fi
if test "x$with_libxenctrl" = "xyes"
then
	SAVE_CPPFLAGS="$CPPFLAGS"
	SAVE_LDFLAGS="$LDFLAGS"
	CPPFLAGS="$CPPFLAGS $with_libxenctrl_cppflags"
	LDFLAGS="$LDFLAGS $with_libxenctrl_ldflags"

	#Xen versions older than 3.4 has no xc_getcpuinfo()
	AC_CHECK_LIB(xenctrl, xc_getcpuinfo, [with_libxenctrl="yes"], [with_libxenctrl="no (symbol 'xc_getcpuinfo' not found)"], [])

	CPPFLAGS="$SAVE_CPPFLAGS"
	LDFLAGS="$SAVE_LDFLAGS"
	LIBXENCTL_CPPFLAGS="$with_libxenctl_cppflags"
	LIBXENCTL_LDFLAGS="$with_libxenctl_ldflags"
	AC_SUBST(LIBXENCTL_CPPFLAGS)
	AC_SUBST(LIBXENCTL_LDFLAGS)
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$withval/lib/Linux"
		with_mic_libs="$PTHREAD_LIBS -lMicAccessSDK -lscif"
		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="$with_mic_ldpath"
			with_mic_libs="$PTHREAD_LIBS -lMicAccessSDK -lscif"],
			[with_mic="no (symbol MicInitAPI not found)"],[$PTHREAD_LIBS -lscif])

	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
	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(vapi/vsc.h,
		[AC_DEFINE([HAVE_VARNISH_V4], [1], [Varnish 4 API support])],
		[AC_CHECK_HEADERS(vsc.h,
			[AC_DEFINE([HAVE_VARNISH_V3], [1], [Varnish 3 API support])],
			[AC_CHECK_HEADERS(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=""
$PKG_CONFIG --exists 'libxml-2.0' 2>/dev/null
if test "$?" = "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
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=""

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"],
		[with_libnotify="no (pkg-config doesn't know libnotify)"]
)

PKG_CHECK_MODULES([LIBRIEMANN_CLIENT], [riemann-client >= 1.6.0],
 [with_libriemann_client="yes"],
 [with_libriemann_client="no (pkg-config doesn't know libriemann-client)"])

# 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="$2"
	     fi
	 else
	     enable_plugin="$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="$2 (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])
AC_COLLECTD([werror],    [disable], [feature], [building with -Werror])

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_cpusleep="no"
plugin_curl_json="no"
plugin_curl_xml="no"
plugin_df="no"
plugin_disk="no"
plugin_drbd="no"
plugin_dpdkstat="no"
plugin_entropy="no"
plugin_ethstat="no"
plugin_fhcount="no"
plugin_fscache="no"
plugin_gps="no"
plugin_grpc="no"
plugin_hugepages="no"
plugin_intel_rdt="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_pinba="no"
plugin_processes="no"
plugin_protocols="no"
plugin_python="no"
plugin_serial="no"
plugin_smart="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_write_prometheus="no"
plugin_xencpu="no"
plugin_zfs_arc="no"
plugin_zone="no"
plugin_zookeeper="no"

# Linux
if test "x$ac_system" = "xLinux"
then
	plugin_battery="yes"
	plugin_cgroups="yes"
	plugin_conntrack="yes"
	plugin_contextswitch="yes"
	plugin_cpu="yes"
	plugin_cpufreq="yes"
	plugin_disk="yes"
	plugin_drbd="yes"
	plugin_entropy="yes"
	plugin_fhcount="yes"
	plugin_fscache="yes"
	plugin_hugepages="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
	
	if test "x$c_cv_have_clock_boottime_monotonic" = "xyes"
	then
		plugin_cpusleep="yes"
	fi
fi

if test "x$ac_system" = "xOpenBSD"
then
	plugin_tcpconns="yes"
fi

if test "x$ac_system" = "xNetBSD"
then
	plugin_disk="yes"
	plugin_entropy="yes"
	plugin_irq="yes"
	plugin_processes="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_ipc="yes"
	plugin_tcpconns="yes"
fi

# FreeBSD

if test "x$ac_system" = "xFreeBSD"
then
	plugin_disk="yes"
	plugin_zfs_arc="yes"
fi


if test "x$with_perfstat" = "xyes"
then
	plugin_contextswitch="yes"
	plugin_cpu="yes"
	plugin_disk="yes"
	plugin_interface="yes"
	plugin_load="yes"
	plugin_memory="yes"
	plugin_swap="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"
	plugin_zone="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
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>]])
else
	with_libi2c="no (Linux only)"
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

if test "x$c_cv_have_getmntent_r" = "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$with_libgrpcpp" = "xyes" && test "x$with_libprotobuf" = "xyes" && test "x$have_protoc3" = "xyes" && test "x$GRPC_CPP_PLUGIN" != "x"
then
	plugin_grpc="yes"
fi

if test "x$have_getifaddrs" = "xyes"
then
	plugin_interface="yes"
fi

if test "x$with_libgps" = "xyes"
then
	plugin_gps="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

if test "x$have_protoc_c" = "xyes" && test "x$with_libprotobuf_c" = "xyes"
then
	plugin_pinba="yes"
	if test "x$with_libmicrohttpd" = "xyes"
	then
		plugin_write_prometheus="yes"
	fi
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_libpython" != "xno"
then
	plugin_python="yes"
fi

if test "x$with_libatasmart" = "xyes" && test "x$with_libudev" = "xyes"
then
	plugin_smart="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$have_swapctl" = "xyes" && test "x$c_cv_have_swapctl_three_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

if test "x$with_libxenctrl" = "xyes"
then
  plugin_xencpu="yes"
fi

if test "x$with_libdpdk" = "xyes"
then
  plugin_dpdkstat="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],       [$with_libiokit],          [Apple hardware sensors])
AC_PLUGIN([aquaero],             [$with_libaquaero5],       [Aquaero 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],                [$plugin_ceph],            [Ceph daemon statistics])
AC_PLUGIN([cgroups],             [$plugin_cgroups],         [CGroups CPU usage accounting])
AC_PLUGIN([chrony],              [yes],                     [Chrony statistics])
AC_PLUGIN([conntrack],           [$plugin_conntrack],       [nf_conntrack statistics])
AC_PLUGIN([contextswitch],       [$plugin_contextswitch],   [context switch statistics])
AC_PLUGIN([cpu],                 [$plugin_cpu],             [CPU usage statistics])
AC_PLUGIN([cpufreq],             [$plugin_cpufreq],         [CPU frequency statistics])
AC_PLUGIN([cpusleep],            [$plugin_cpusleep],        [CPU sleep statistics])
AC_PLUGIN([csv],                 [yes],                     [CSV output plugin])
AC_PLUGIN([curl],                [$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([dbi],                 [$with_libdbi],            [General database statistics])
AC_PLUGIN([df],                  [$plugin_df],              [Filesystem usage statistics])
AC_PLUGIN([disk],                [$plugin_disk],            [Disk usage statistics])
AC_PLUGIN([dns],                 [$with_libpcap],           [DNS traffic analysis])
AC_PLUGIN([dpdkstat],            [$plugin_dpdkstat],        [Stats & Status from DPDK])
AC_PLUGIN([drbd],                [$plugin_drbd],            [DRBD statistics])
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],             [$plugin_fhcount],         [File handles statistics])
AC_PLUGIN([filecount],           [yes],                     [Count files in directories])
AC_PLUGIN([fscache],             [$plugin_fscache],         [fscache statistics])
AC_PLUGIN([gmond],               [$with_libganglia],        [Ganglia plugin])
AC_PLUGIN([gps],                 [$plugin_gps],             [GPS plugin])
AC_PLUGIN([grpc],                [$plugin_grpc],            [gRPC plugin])
AC_PLUGIN([hddtemp],             [yes],                     [Query hddtempd])
AC_PLUGIN([hugepages],           [$plugin_hugepages],       [Hugepages statistics])
AC_PLUGIN([intel_rdt],           [$with_libpqos],           [Intel RDT monitor plugin])
AC_PLUGIN([interface],           [$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],                [$plugin_load],            [System load])
AC_PLUGIN([log_logstash],        [$plugin_log_logstash],    [Logstash json_event compatible logging])
AC_PLUGIN([logfile],             [yes],                     [File logging plugin])
AC_PLUGIN([lpar],                [$with_perfstat],          [AIX logical partitions statistics])
AC_PLUGIN([lua],                 [$with_liblua],            [Lua plugin])
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],              [$with_libmodbus],         [Modbus plugin])
AC_PLUGIN([mqtt],                [$with_libmosquitto],      [MQTT output 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([notify_nagios],       [yes],                     [Nagios notification plugin])
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],                  [$have_net_pfvar_h],       [BSD packet filter (PF) statistics])
# FIXME: Check for libevent, too.
AC_PLUGIN([pinba],               [$plugin_pinba],           [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],              [$plugin_python],          [Embed a Python interpreter])
AC_PLUGIN([redis],               [$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],               [$plugin_smart],           [SMART statistics])
AC_PLUGIN([snmp],                [$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_prometheus],    [$plugin_write_prometheus], [Prometheus write plugin])
AC_PLUGIN([write_redis],         [$with_libhiredis],        [Redis output plugin])
AC_PLUGIN([write_riemann],       [$with_libriemann_client], [Riemann output plugin])
AC_PLUGIN([write_sensu],         [yes],                     [Sensu output plugin])
AC_PLUGIN([write_tsdb],          [yes],                     [TSDB output plugin])
AC_PLUGIN([xencpu],              [$plugin_xencpu],          [Xen Host CPU usage])
AC_PLUGIN([xmms],                [$with_libxmms],           [XMMS statistics])
AC_PLUGIN([zfs_arc],             [$plugin_zfs_arc],         [ZFS ARC statistics])
AC_PLUGIN([zone],                [$plugin_zone],            [Solaris container 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
	AC_MSG_CHECKING([for the ExtUtils::MakeMaker module])
	if $PERL -MExtUtils::MakeMaker -e '' 2>/dev/null; then
		AC_MSG_RESULT([yes])
	else
		AC_MSG_RESULT([no])
		with_perl_bindings="no (ExtUtils::MakeMaker not found)"
	fi
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)

AM_CFLAGS="-Wall"
AM_CXXFLAGS="-Wall"
if test "x$enable_werror" != "xno"
then
        AM_CFLAGS="$AM_CFLAGS -Werror"
        AM_CXXFLAGS="$AM_CXXFLAGS -Werror"
fi
AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_CXXFLAGS])

AC_CONFIG_FILES([Makefile proto/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

AC_MSG_RESULT()
AC_MSG_RESULT([Configuration:])
AC_MSG_RESULT([  Build:])
AC_MSG_RESULT([    Platform  . . . . . . $ac_system])
AC_MSG_RESULT([    CC  . . . . . . . . . $CC])
AC_MSG_RESULT([    CFLAGS  . . . . . . . $AM_CFLAGS $CFLAGS])
AC_MSG_RESULT([    CXXFLAGS  . . . . . . $AM_CXXFLAGS $CXXFLAGS])
AC_MSG_RESULT([    CPP . . . . . . . . . $CPP])
AC_MSG_RESULT([    CPPFLAGS  . . . . . . $CPPFLAGS])
AC_MSG_RESULT([    GRPC_CPP_PLUGIN . . . $GRPC_CPP_PLUGIN])
AC_MSG_RESULT([    LD  . . . . . . . . . $LD])
AC_MSG_RESULT([    LDFLAGS . . . . . . . $LDFLAGS])
AC_MSG_RESULT([    PROTOC  . . . . . . . $PROTOC])
AC_MSG_RESULT([    YACC  . . . . . . . . $YACC])
AC_MSG_RESULT([    YFLAGS  . . . . . . . $YFLAGS])
AC_MSG_RESULT()
AC_MSG_RESULT([  Libraries:])
AC_MSG_RESULT([    intel mic . . . . . . $with_mic])
AC_MSG_RESULT([    libaquaero5 . . . . . $with_libaquaero5])
AC_MSG_RESULT([    libatasmart . . . . . $with_libatasmart])
AC_MSG_RESULT([    libcurl . . . . . . . $with_libcurl])
AC_MSG_RESULT([    libdbi  . . . . . . . $with_libdbi])
AC_MSG_RESULT([    libdpdk . . . . . . . $with_libdpdk])
AC_MSG_RESULT([    libesmtp  . . . . . . $with_libesmtp])
AC_MSG_RESULT([    libganglia  . . . . . $with_libganglia])
AC_MSG_RESULT([    libgcrypt . . . . . . $with_libgcrypt])
AC_MSG_RESULT([    libgps  . . . . . . . $with_libgps])
AC_MSG_RESULT([    libgrpc++ . . . . . . $with_libgrpcpp])
AC_MSG_RESULT([    libhal  . . . . . . . $with_libhal])
AC_MSG_RESULT([    libhiredis  . . . . . $with_libhiredis])
AC_MSG_RESULT([    libi2c-dev  . . . . . $with_libi2c])
AC_MSG_RESULT([    libiokit  . . . . . . $with_libiokit])
AC_MSG_RESULT([    libiptc . . . . . . . $with_libiptc])
AC_MSG_RESULT([    libjvm  . . . . . . . $with_java])
AC_MSG_RESULT([    libkstat  . . . . . . $with_kstat])
AC_MSG_RESULT([    libkvm  . . . . . . . $with_libkvm])
AC_MSG_RESULT([    libldap . . . . . . . $with_libldap])
AC_MSG_RESULT([    liblua  . . . . . . . $with_liblua])
AC_MSG_RESULT([    liblvm2app  . . . . . $with_liblvm2app])
AC_MSG_RESULT([    libmemcached  . . . . $with_libmemcached])
AC_MSG_RESULT([    libmicrohttpd . . . . $with_libmicrohttpd])
AC_MSG_RESULT([    libmnl  . . . . . . . $with_libmnl])
AC_MSG_RESULT([    libmodbus . . . . . . $with_libmodbus])
AC_MSG_RESULT([    libmongoc . . . . . . $with_libmongoc])
AC_MSG_RESULT([    libmosquitto  . . . . $with_libmosquitto])
AC_MSG_RESULT([    libmysql  . . . . . . $with_libmysql])
AC_MSG_RESULT([    libnetapp . . . . . . $with_libnetapp])
AC_MSG_RESULT([    libnetsnmp  . . . . . $with_libnetsnmp])
AC_MSG_RESULT([    libnotify . . . . . . $with_libnotify])
AC_MSG_RESULT([    liboconfig  . . . . . $with_liboconfig])
AC_MSG_RESULT([    libopenipmi . . . . . $with_libopenipmipthread])
AC_MSG_RESULT([    liboping  . . . . . . $with_liboping])
AC_MSG_RESULT([    libowcapi . . . . . . $with_libowcapi])
AC_MSG_RESULT([    libpcap . . . . . . . $with_libpcap])
AC_MSG_RESULT([    libperfstat . . . . . $with_perfstat])
AC_MSG_RESULT([    libperl . . . . . . . $with_libperl])
AC_MSG_RESULT([    libpq . . . . . . . . $with_libpq])
AC_MSG_RESULT([    libpqos . . . . . . . $with_libpqos])
AC_MSG_RESULT([    libprotobuf . . . . . $with_libprotobuf])
AC_MSG_RESULT([    libprotobuf-c . . . . $with_libprotobuf_c])
AC_MSG_RESULT([    libpython . . . . . . $with_libpython])
AC_MSG_RESULT([    librabbitmq . . . . . $with_librabbitmq])
AC_MSG_RESULT([    libriemann-client . . $with_libriemann_client])
AC_MSG_RESULT([    librdkafka  . . . . . $with_librdkafka])
AC_MSG_RESULT([    librouteros . . . . . $with_librouteros])
AC_MSG_RESULT([    librrd  . . . . . . . $with_librrd])
AC_MSG_RESULT([    libsensors  . . . . . $with_libsensors])
AC_MSG_RESULT([    libsigrok   . . . . . $with_libsigrok])
AC_MSG_RESULT([    libstatgrab . . . . . $with_libstatgrab])
AC_MSG_RESULT([    libtokyotyrant  . . . $with_libtokyotyrant])
AC_MSG_RESULT([    libudev . . . . . . . $with_libudev])
AC_MSG_RESULT([    libupsclient  . . . . $with_libupsclient])
AC_MSG_RESULT([    libvarnish  . . . . . $with_libvarnish])
AC_MSG_RESULT([    libvirt . . . . . . . $with_libvirt])
AC_MSG_RESULT([    libxenctrl  . . . . . $with_libxenctrl])
AC_MSG_RESULT([    libxml2 . . . . . . . $with_libxml2])
AC_MSG_RESULT([    libxmms . . . . . . . $with_libxmms])
AC_MSG_RESULT([    libyajl . . . . . . . $with_libyajl])
AC_MSG_RESULT([    oracle  . . . . . . . $with_oracle])
AC_MSG_RESULT([    protobuf-c  . . . . . $have_protoc_c])
AC_MSG_RESULT([    protoc 3  . . . . . . $have_protoc3])
AC_MSG_RESULT()
AC_MSG_RESULT([  Features:])
AC_MSG_RESULT([    daemon mode . . . . . $enable_daemon])
AC_MSG_RESULT([    debug . . . . . . . . $enable_debug])
AC_MSG_RESULT()
AC_MSG_RESULT([  Bindings:])
AC_MSG_RESULT([    perl  . . . . . . . . $with_perl_bindings])
AC_MSG_RESULT()
AC_MSG_RESULT([  Modules:])
AC_MSG_RESULT([    aggregation . . . . . $enable_aggregation])
AC_MSG_RESULT([    amqp    . . . . . . . $enable_amqp])
AC_MSG_RESULT([    apache  . . . . . . . $enable_apache])
AC_MSG_RESULT([    apcups  . . . . . . . $enable_apcups])
AC_MSG_RESULT([    apple_sensors . . . . $enable_apple_sensors])
AC_MSG_RESULT([    aquaero . . . . . . . $enable_aquaero])
AC_MSG_RESULT([    ascent  . . . . . . . $enable_ascent])
AC_MSG_RESULT([    barometer . . . . . . $enable_barometer])
AC_MSG_RESULT([    battery . . . . . . . $enable_battery])
AC_MSG_RESULT([    bind  . . . . . . . . $enable_bind])
AC_MSG_RESULT([    ceph  . . . . . . . . $enable_ceph])
AC_MSG_RESULT([    cgroups . . . . . . . $enable_cgroups])
AC_MSG_RESULT([    chrony. . . . . . . . $enable_chrony])
AC_MSG_RESULT([    conntrack . . . . . . $enable_conntrack])
AC_MSG_RESULT([    contextswitch . . . . $enable_contextswitch])
AC_MSG_RESULT([    cpu . . . . . . . . . $enable_cpu])
AC_MSG_RESULT([    cpufreq . . . . . . . $enable_cpufreq])
AC_MSG_RESULT([    cpusleep  . . . . . . $enable_cpusleep])
AC_MSG_RESULT([    csv . . . . . . . . . $enable_csv])
AC_MSG_RESULT([    curl  . . . . . . . . $enable_curl])
AC_MSG_RESULT([    curl_json . . . . . . $enable_curl_json])
AC_MSG_RESULT([    curl_xml  . . . . . . $enable_curl_xml])
AC_MSG_RESULT([    dbi . . . . . . . . . $enable_dbi])
AC_MSG_RESULT([    df  . . . . . . . . . $enable_df])
AC_MSG_RESULT([    disk  . . . . . . . . $enable_disk])
AC_MSG_RESULT([    dns . . . . . . . . . $enable_dns])
AC_MSG_RESULT([    dpdkstat  . . . . . . $enable_dpdkstat])
AC_MSG_RESULT([    drbd  . . . . . . . . $enable_drbd])
AC_MSG_RESULT([    email . . . . . . . . $enable_email])
AC_MSG_RESULT([    entropy . . . . . . . $enable_entropy])
AC_MSG_RESULT([    ethstat . . . . . . . $enable_ethstat])
AC_MSG_RESULT([    exec  . . . . . . . . $enable_exec])
AC_MSG_RESULT([    fhcount . . . . . . . $enable_fhcount])
AC_MSG_RESULT([    filecount . . . . . . $enable_filecount])
AC_MSG_RESULT([    fscache . . . . . . . $enable_fscache])
AC_MSG_RESULT([    gmond . . . . . . . . $enable_gmond])
AC_MSG_RESULT([    gps . . . . . . . . . $enable_gps])
AC_MSG_RESULT([    grpc  . . . . . . . . $enable_grpc])
AC_MSG_RESULT([    hddtemp . . . . . . . $enable_hddtemp])
AC_MSG_RESULT([    hugepages . . . . . . $enable_hugepages])
AC_MSG_RESULT([    intel_rdt. . . . .  . $enable_intel_rdt])
AC_MSG_RESULT([    interface . . . . . . $enable_interface])
AC_MSG_RESULT([    ipc . . . . . . . . . $enable_ipc])
AC_MSG_RESULT([    ipmi  . . . . . . . . $enable_ipmi])
AC_MSG_RESULT([    iptables  . . . . . . $enable_iptables])
AC_MSG_RESULT([    ipvs  . . . . . . . . $enable_ipvs])
AC_MSG_RESULT([    irq . . . . . . . . . $enable_irq])
AC_MSG_RESULT([    java  . . . . . . . . $enable_java])
AC_MSG_RESULT([    load  . . . . . . . . $enable_load])
AC_MSG_RESULT([    logfile . . . . . . . $enable_logfile])
AC_MSG_RESULT([    log_logstash  . . . . $enable_log_logstash])
AC_MSG_RESULT([    lpar  . . . . . . . . $enable_lpar])
AC_MSG_RESULT([    lua . . . . . . . . . $enable_lua])
AC_MSG_RESULT([    lvm . . . . . . . . . $enable_lvm])
AC_MSG_RESULT([    madwifi . . . . . . . $enable_madwifi])
AC_MSG_RESULT([    match_empty_counter . $enable_match_empty_counter])
AC_MSG_RESULT([    match_hashed  . . . . $enable_match_hashed])
AC_MSG_RESULT([    match_regex . . . . . $enable_match_regex])
AC_MSG_RESULT([    match_timediff  . . . $enable_match_timediff])
AC_MSG_RESULT([    match_value . . . . . $enable_match_value])
AC_MSG_RESULT([    mbmon . . . . . . . . $enable_mbmon])
AC_MSG_RESULT([    md  . . . . . . . . . $enable_md])
AC_MSG_RESULT([    memcachec . . . . . . $enable_memcachec])
AC_MSG_RESULT([    memcached . . . . . . $enable_memcached])
AC_MSG_RESULT([    memory  . . . . . . . $enable_memory])
AC_MSG_RESULT([    mic . . . . . . . . . $enable_mic])
AC_MSG_RESULT([    modbus  . . . . . . . $enable_modbus])
AC_MSG_RESULT([    mqtt  . . . . . . . . $enable_mqtt])
AC_MSG_RESULT([    multimeter  . . . . . $enable_multimeter])
AC_MSG_RESULT([    mysql . . . . . . . . $enable_mysql])
AC_MSG_RESULT([    netapp  . . . . . . . $enable_netapp])
AC_MSG_RESULT([    netlink . . . . . . . $enable_netlink])
AC_MSG_RESULT([    network . . . . . . . $enable_network])
AC_MSG_RESULT([    nfs . . . . . . . . . $enable_nfs])
AC_MSG_RESULT([    nginx . . . . . . . . $enable_nginx])
AC_MSG_RESULT([    notify_desktop  . . . $enable_notify_desktop])
AC_MSG_RESULT([    notify_email  . . . . $enable_notify_email])
AC_MSG_RESULT([    notify_nagios . . . . $enable_notify_nagios])
AC_MSG_RESULT([    ntpd  . . . . . . . . $enable_ntpd])
AC_MSG_RESULT([    numa  . . . . . . . . $enable_numa])
AC_MSG_RESULT([    nut . . . . . . . . . $enable_nut])
AC_MSG_RESULT([    olsrd . . . . . . . . $enable_olsrd])
AC_MSG_RESULT([    onewire . . . . . . . $enable_onewire])
AC_MSG_RESULT([    openldap  . . . . . . $enable_openldap])
AC_MSG_RESULT([    openvpn . . . . . . . $enable_openvpn])
AC_MSG_RESULT([    oracle  . . . . . . . $enable_oracle])
AC_MSG_RESULT([    perl  . . . . . . . . $enable_perl])
AC_MSG_RESULT([    pf  . . . . . . . . . $enable_pf])
AC_MSG_RESULT([    pinba . . . . . . . . $enable_pinba])
AC_MSG_RESULT([    ping  . . . . . . . . $enable_ping])
AC_MSG_RESULT([    postgresql  . . . . . $enable_postgresql])
AC_MSG_RESULT([    powerdns  . . . . . . $enable_powerdns])
AC_MSG_RESULT([    processes . . . . . . $enable_processes])
AC_MSG_RESULT([    protocols . . . . . . $enable_protocols])
AC_MSG_RESULT([    python  . . . . . . . $enable_python])
AC_MSG_RESULT([    redis . . . . . . . . $enable_redis])
AC_MSG_RESULT([    routeros  . . . . . . $enable_routeros])
AC_MSG_RESULT([    rrdcached . . . . . . $enable_rrdcached])
AC_MSG_RESULT([    rrdtool . . . . . . . $enable_rrdtool])
AC_MSG_RESULT([    sensors . . . . . . . $enable_sensors])
AC_MSG_RESULT([    serial  . . . . . . . $enable_serial])
AC_MSG_RESULT([    sigrok  . . . . . . . $enable_sigrok])
AC_MSG_RESULT([    smart . . . . . . . . $enable_smart])
AC_MSG_RESULT([    snmp  . . . . . . . . $enable_snmp])
AC_MSG_RESULT([    statsd  . . . . . . . $enable_statsd])
AC_MSG_RESULT([    swap  . . . . . . . . $enable_swap])
AC_MSG_RESULT([    syslog  . . . . . . . $enable_syslog])
AC_MSG_RESULT([    table . . . . . . . . $enable_table])
AC_MSG_RESULT([    tail_csv  . . . . . . $enable_tail_csv])
AC_MSG_RESULT([    tail  . . . . . . . . $enable_tail])
AC_MSG_RESULT([    tape  . . . . . . . . $enable_tape])
AC_MSG_RESULT([    target_notification . $enable_target_notification])
AC_MSG_RESULT([    target_replace  . . . $enable_target_replace])
AC_MSG_RESULT([    target_scale  . . . . $enable_target_scale])
AC_MSG_RESULT([    target_set  . . . . . $enable_target_set])
AC_MSG_RESULT([    target_v5upgrade  . . $enable_target_v5upgrade])
AC_MSG_RESULT([    tcpconns  . . . . . . $enable_tcpconns])
AC_MSG_RESULT([    teamspeak2  . . . . . $enable_teamspeak2])
AC_MSG_RESULT([    ted . . . . . . . . . $enable_ted])
AC_MSG_RESULT([    thermal . . . . . . . $enable_thermal])
AC_MSG_RESULT([    threshold . . . . . . $enable_threshold])
AC_MSG_RESULT([    tokyotyrant . . . . . $enable_tokyotyrant])
AC_MSG_RESULT([    turbostat . . . . . . $enable_turbostat])
AC_MSG_RESULT([    unixsock  . . . . . . $enable_unixsock])
AC_MSG_RESULT([    uptime  . . . . . . . $enable_uptime])
AC_MSG_RESULT([    users . . . . . . . . $enable_users])
AC_MSG_RESULT([    uuid  . . . . . . . . $enable_uuid])
AC_MSG_RESULT([    varnish . . . . . . . $enable_varnish])
AC_MSG_RESULT([    virt  . . . . . . . . $enable_virt])
AC_MSG_RESULT([    vmem  . . . . . . . . $enable_vmem])
AC_MSG_RESULT([    vserver . . . . . . . $enable_vserver])
AC_MSG_RESULT([    wireless  . . . . . . $enable_wireless])
AC_MSG_RESULT([    write_graphite  . . . $enable_write_graphite])
AC_MSG_RESULT([    write_http  . . . . . $enable_write_http])
AC_MSG_RESULT([    write_kafka . . . . . $enable_write_kafka])
AC_MSG_RESULT([    write_log . . . . . . $enable_write_log])
AC_MSG_RESULT([    write_mongodb . . . . $enable_write_mongodb])
AC_MSG_RESULT([    write_prometheus. . . $enable_write_prometheus])
AC_MSG_RESULT([    write_redis . . . . . $enable_write_redis])
AC_MSG_RESULT([    write_riemann . . . . $enable_write_riemann])
AC_MSG_RESULT([    write_sensu . . . . . $enable_write_sensu])
AC_MSG_RESULT([    write_tsdb  . . . . . $enable_write_tsdb])
AC_MSG_RESULT([    xencpu  . . . . . . . $enable_xencpu])
AC_MSG_RESULT([    xmms  . . . . . . . . $enable_xmms])
AC_MSG_RESULT([    zfs_arc . . . . . . . $enable_zfs_arc])
AC_MSG_RESULT([    zone  . . . . . . . . $enable_zone])
AC_MSG_RESULT([    zookeeper . . . . . . $enable_zookeeper])
AC_MSG_RESULT()

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 :