Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 2270 deletions

diff --git a/configure.ac b/configure.ac
deleted file mode 100644
index 8f1e4115c..000000000
--- a/configure.ac
+++ /dev/null
@@ -1,2270 +0,0 @@
-#
-# Copyright (C) 2015 Alon Bar-Lev <alon.barlev@gmail.com>
-# SPDX-License-Identifier: GPL-3.0-or-later
-#
-AC_PREREQ(2.60)
-
-# We do not use m4_esyscmd_s to support older autoconf.
-define([VERSION_STRING], m4_esyscmd([git describe 2>/dev/null | tr -d '\n']))
-define([VERSION_FROM_FILE], m4_esyscmd([cat packaging/version | tr -d '\n']))
-m4_ifval(VERSION_STRING, [], [define([VERSION_STRING], VERSION_FROM_FILE)])
-
-AC_INIT([netdata], VERSION_STRING[])
-
-AM_MAINTAINER_MODE([disable])
-if test x"$USE_MAINTAINER_MODE" = xyes; then
-AC_MSG_NOTICE(***************** MAINTAINER MODE *****************)
-fi
-
-PACKAGE_RPM_VERSION="VERSION_STRING"
-AC_SUBST([PACKAGE_RPM_VERSION])
-
-# -----------------------------------------------------------------------------
-# autoconf initialization
-
-AC_CONFIG_AUX_DIR([.])
-AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_MACRO_DIR([build/m4])
-AC_CONFIG_SRCDIR([daemon/main.c])
-define([AUTOMATE_INIT_OPTIONS], [tar-pax subdir-objects])
-m4_ifdef([AM_SILENT_RULES], [
-    define([AUTOMATE_INIT_OPTIONS], [tar-pax silent-rules subdir-objects])
-    ])
-AM_INIT_AUTOMAKE(AUTOMATE_INIT_OPTIONS)
-m4_ifdef([AM_SILENT_RULES], [
-    AM_SILENT_RULES([yes])
-    ])
-AC_CANONICAL_HOST
-AC_PROG_CC
-AC_PROG_CC_C99
-AM_PROG_CC_C_O
-AC_PROG_CXX
-AC_PROG_INSTALL
-PKG_PROG_PKG_CONFIG
-AC_USE_SYSTEM_EXTENSIONS
-
-AC_LANG_PUSH([C])
-AX_COMPILER_VENDOR
-AC_LANG_POP([C])
-if test "$ax_cv_c_compiler_vendor" = "clang"; then
-  AC_CHECK_PROG([AR], [llvm-ar], [llvm-ar], [ar])
-  AC_CHECK_PROG([RANLIB], [llvm-ranlib], [llvm-ranlib], [ranlib])
-else
-  AC_CHECK_TOOL([RANLIB], [ranlib])
-  AC_CHECK_TOOL([AR], [ar])
-fi
-
-CFLAGS="$CFLAGS -fexceptions"
-
-# -----------------------------------------------------------------------------
-# configurable options
-
-AC_ARG_ENABLE(
-    [plugin-nfacct],
-    [AS_HELP_STRING([--enable-plugin-nfacct], [enable nfacct plugin @<:@default autodetect@:>@])],
-    ,
-    [enable_plugin_nfacct="detect"]
-)
-AC_ARG_ENABLE(
-    [plugin-freeipmi],
-    [AS_HELP_STRING([--enable-plugin-freeipmi], [enable freeipmi plugin @<:@default autodetect@:>@])],
-    ,
-    [enable_plugin_freeipmi="detect"]
-)
-AC_ARG_ENABLE(
-    [plugin-systemd-journal],
-    [AS_HELP_STRING([--enable-plugin-systemd-journal], [enable systemd-journal plugin @<:@default autodetect@:>@])],
-    ,
-    [enable_plugin_systemd_journal="detect"]
-)
-AC_ARG_ENABLE(
-    [logsmanagement],
-    [AS_HELP_STRING([--disable-logsmanagement], [Disable logsmanagement @<:@default autodetect@:>@])],
-    ,
-    [enable_logsmanagement="detect"]
-)
-AC_ARG_ENABLE(
-    [logsmanagement_tests],
-    [AS_HELP_STRING([--enable-logsmanagement-tests], [Enable logsmanagement tests @<:@default disabled@:>@])],
-    ,
-    [enable_logsmanagement_tests="no"]
-)
-AC_ARG_ENABLE(
-    [plugin-cups],
-    [AS_HELP_STRING([--enable-plugin-cups], [enable cups plugin @<:@default autodetect@:>@])],
-    ,
-    [enable_plugin_cups="detect"]
-)
-AC_ARG_ENABLE(
-    [plugin-xenstat],
-    [AS_HELP_STRING([--enable-plugin-xenstat], [enable xenstat plugin @<:@default autodetect@:>@])],
-    ,
-    [enable_plugin_xenstat="detect"]
-)
-AC_ARG_ENABLE(
-    [exporting-kinesis],
-    [AS_HELP_STRING([--enable-exporting-kinesis], [enable kinesis exporting connector @<:@default autodetect@:>@])],
-    ,
-    [enable_exporting_kinesis="detect"]
-)
-AC_ARG_ENABLE(
-    [exporting-pubsub],
-    [AS_HELP_STRING([--enable-exporting-pubsub], [enable pubsub exporting connector @<:@default autodetect@:>@])],
-    ,
-    [enable_exporting_pubsub="detect"]
-)
-AC_ARG_ENABLE(
-    [exporting-prometheus-remote-write],
-    [AS_HELP_STRING([--enable-exporting-prometheus-remote-write], [enable prometheus remote write exporting connector @<:@default autodetect@:>@])],
-    ,
-    [enable_exporting_prometheus_remote_write="detect"]
-)
-AC_ARG_ENABLE(
-    [exporting-mongodb],
-    [AS_HELP_STRING([--enable-exporting-mongodb], [enable mongodb exporting @<:@default autodetect@:>@])],
-    ,
-    [enable_exporting_mongodb="detect"]
-)
-AC_ARG_ENABLE(
-    [pedantic],
-    [AS_HELP_STRING([--enable-pedantic], [enable pedantic compiler warnings @<:@default disabled@:>@])],
-    ,
-    [enable_pedantic="no"]
-)
-AC_ARG_ENABLE(
-    [accept4],
-    [AS_HELP_STRING([--disable-accept4], [System does not have accept4 @<:@default autodetect@:>@])],
-    ,
-    [enable_accept4="detect"]
-)
-AC_ARG_WITH(
-    [webdir],
-    [AS_HELP_STRING([--with-webdir], [location of webdir @<:@PKGDATADIR/web@:>@])],
-    [webdir="${withval}"],
-    [webdir="\$(pkgdatadir)/web"]
-)
-AC_ARG_WITH(
-    [libcap],
-    [AS_HELP_STRING([--with-libcap], [build with libcap @<:@default autodetect@:>@])],
-    ,
-    [with_libcap="detect"]
-)
-AC_ARG_WITH(
-    [math],
-    [AS_HELP_STRING([--without-math], [build without math @<:@default enabled@:>@])],
-    ,
-    [with_math="yes"]
-)
-AC_ARG_WITH(
-    [user],
-    [AS_HELP_STRING([--with-user], [use this user to drop privilege @<:@default nobody@:>@])],
-    ,
-    [with_user="nobody"]
-)
-AC_ARG_ENABLE(
-    [x86-sse],
-    [AS_HELP_STRING([--disable-x86-sse], [SSE/SS2 optimizations on x86 @<:@default enabled@:>@])],
-    ,
-    [enable_x86_sse="yes"]
-)
-AC_ARG_ENABLE(
-    [lto],
-    [AS_HELP_STRING([--enable-lto], [Link Time Optimizations @<:@default disabled@:>@])],
-    ,
-    [enable_lto="no"]
-)
-AC_ARG_ENABLE(
-    [openssl],
-    [AS_HELP_STRING([--enable-openssl], [Enable OpenSSL support @<:@default autodetect@:>@])],
-    ,
-    [enable_openssl="detect"]
-)
-AC_ARG_ENABLE(
-    [lz4],
-    [AS_HELP_STRING([--enable-lz4], [Enable LZ4 support @<:@default autodetect@:>@])],
-    ,
-    [enable_lz4="detect"]
-)
-AC_ARG_ENABLE(
-    [dbengine],
-    [AS_HELP_STRING([--disable-dbengine], [disable netdata dbengine @<:@default autodetect@:>@])],
-    ,
-    [enable_dbengine="detect"]
-)
-AC_ARG_ENABLE(
-    [jsonc],
-    [AS_HELP_STRING([--enable-jsonc], [Enable JSON-C support @<:@default autodetect@:>@])],
-    ,
-    [enable_jsonc="detect"]
-)
-AC_ARG_ENABLE(
-    [ebpf],
-    [AS_HELP_STRING([--disable-ebpf], [Disable eBPF support @<:@default autodetect@:>@])],
-    ,
-    [enable_ebpf="detect"]
-)
-AC_ARG_WITH(
-    [bundled-lws],
-    [AS_HELP_STRING([--with-bundled-lws], [Use the bundled version of libwebsockets library @<:@default use system library@:>@])],
-    [with_bundled_lws="yes"], [with_bundled_lws="no"]
-)
-AC_ARG_WITH(
-    [bundled-protobuf],
-    [AS_HELP_STRING([--with-bundled-protobuf],
-                    [Uses the bundled version of Google Protocol Buffers @<:@default bundled if present@:>@])],
-    [with_bundled_protobuf="$withval"],
-    [with_bundled_protobuf="detect"]
-)
-AC_ARG_ENABLE(
-    [ml],
-    [AS_HELP_STRING([--enable-ml], [Enable anomaly detection @<:@default autodetect@:>@])],
-    ,
-    [enable_ml="detect"]
-)
-AC_ARG_ENABLE(
-    [gtests],
-    [AS_HELP_STRING([--enable-gtests], [Enable google tests @<:@default no@:>@])],
-    ,
-    [enable_gtests="no"]
-)
-AC_ARG_ENABLE(
-    [aclk_ssl_debug],
-    [AS_HELP_STRING([--enable-aclk-ssl-debug], [Enables possibility for SSL key logging @<:@default no@:>@])],
-    [aclk_ssl_debug="yes"],
-    [aclk_ssl_debug="no"]
-)
-AC_ARG_ENABLE(
-    [h2o],
-    [AS_HELP_STRING([--disable-h2o], [Disable H2O webserver @<:@default autodetect@:>@])],
-    ,
-    [enable_h2o="detect"]
-)
-
-# -----------------------------------------------------------------------------
-# Enforce building with C99, bail early if we can't.
-test "${ac_cv_prog_cc_c99}" = "no" && AC_MSG_ERROR([Netdata requires a compiler that supports C99 to build])
-
-# -----------------------------------------------------------------------------
-# Check if cloud is enabled and if the functionality is available
-
-AC_ARG_ENABLE(
-    [cloud],
-    [AS_HELP_STRING([--disable-cloud],
-                    [Disables all cloud functionality])],
-    [ enable_cloud="$enableval" ],
-    [ enable_cloud="detect" ]
-)
-
-if test "${enable_cloud}" = "no"; then
-    AC_DEFINE([DISABLE_CLOUD], [1], [disable netdata cloud functionality])
-fi
-
-# -----------------------------------------------------------------------------
-# C++ version check
-
-# Check for C++17 support (optional)
-# AX_CXX_COMPILE_STDCXX(17, noext, optional)
-
-if test "x$HAVE_CXX17" != "x1"; then
-  # Check for C++11 support (optional)
-  AX_CXX_COMPILE_STDCXX(11, noext, optional)
-fi
-
-AC_MSG_CHECKING([c++ standard to use])
-if test "x$HAVE_CXX17" = "x1"; then
-  have_cxx17="yes"
-  have_cxx11="yes"
-  CPP_STD_FLAG="-std=c++17"
-  cpp_std_to_use="c++17"
-  AM_CONDITIONAL([HAVE_CXX17], [true])
-  AM_CONDITIONAL([HAVE_CXX11], [true])
-elif test "x$HAVE_CXX11" = "x1"; then
-  have_cxx17="no"
-  have_cxx11="yes"
-  CPP_STD_FLAG="-std=c++11"
-  cpp_std_to_use="c++11"
-  AM_CONDITIONAL([HAVE_CXX17], [false])
-  AM_CONDITIONAL([HAVE_CXX11], [true])
-else
-  have_cxx17="no"
-  have_cxx11="no"
-  CPP_STD_FLAG=""
-  cpp_std_to_use="no c++"
-  AM_CONDITIONAL([HAVE_CXX17], [false])
-  AM_CONDITIONAL([HAVE_CXX11], [false])
-fi
-
-# PPC64LE needs -std=gnu++11 in order to build dlib. However, the rest of
-# the agent's components use and have been tested only with -std=c++11.
-# Skip ML compilation on that CPU until we reorganize and test the C++ flags.
-if test "${host_cpu}" = "powerpc64le"; then
-  have_cxx17="no"
-  have_cxx11="no"
-  CPP_STD_FLAG=""
-  cpp_std_to_use="no c++ on powerpc64le"
-  AM_CONDITIONAL([HAVE_CXX17], [false])
-  AM_CONDITIONAL([HAVE_CXX11], [false])
-fi
-
-AC_MSG_RESULT([${cpp_std_to_use}])
-
-# -----------------------------------------------------------------------------
-# netdata required checks
-
-# fails on centos6
-#AX_CHECK_ENABLE_DEBUG()
-
-AX_GCC_FUNC_ATTRIBUTE([returns_nonnull])
-AX_GCC_FUNC_ATTRIBUTE([malloc])
-AX_GCC_FUNC_ATTRIBUTE([noreturn])
-AX_GCC_FUNC_ATTRIBUTE([noinline])
-AX_GCC_FUNC_ATTRIBUTE([format])
-AX_GCC_FUNC_ATTRIBUTE([warn_unused_result])
-
-AC_CHECK_TYPES([struct timespec, clockid_t], [], [], [[#include <time.h>]])
-AC_SEARCH_LIBS([clock_gettime], [rt posix4])
-AC_CHECK_FUNCS([clock_gettime])
-AC_CHECK_FUNCS([sched_setscheduler sched_getscheduler sched_getparam sched_get_priority_min sched_get_priority_max getpriority setpriority nice])
-AC_CHECK_FUNCS([recvmmsg])
-AC_CHECK_FUNCS([close_range])
-
-AC_TYPE_INT8_T
-AC_TYPE_INT16_T
-AC_TYPE_INT32_T
-AC_TYPE_INT64_T
-AC_TYPE_UINT8_T
-AC_TYPE_UINT16_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT64_T
-AC_C_INLINE
-AC_FUNC_STRERROR_R
-AC_C__GENERIC
-# AC_C_STMT_EXPR
-AC_CANONICAL_HOST
-AC_HEADER_MAJOR
-AC_HEADER_RESOLV
-
-AC_CHECK_HEADERS_ONCE([sys/prctl.h])
-AC_CHECK_HEADERS_ONCE([sys/vfs.h])
-AC_CHECK_HEADERS_ONCE([sys/statfs.h])
-AC_CHECK_HEADERS_ONCE([linux/magic.h])
-AC_CHECK_HEADERS_ONCE([sys/statvfs.h])
-AC_CHECK_HEADERS_ONCE([sys/mount.h])
-
-if test "${enable_accept4}" != "no"; then
-    AC_CHECK_FUNCS_ONCE(accept4)
-fi
-
-AC_CHECK_FUNCS_ONCE(malloc_usable_size)
-
-# -----------------------------------------------------------------------------
-# operating system detection
-
-originalCFLAGS="${CFLAGS}"
-AC_MSG_CHECKING([operating system])
-case "$host_os" in
-freebsd*)
-    build_target=freebsd
-    OPTIONAL_OS_DEP_CFLAGS="-I/usr/local/include"
-    CFLAGS="${CFLAGS} ${OPTIONAL_OS_DEP_CFLAGS}"
-    LDFLAGS="${LDFLAGS} -L/usr/local/lib"
-    ;;
-darwin*)
-    build_target=macos
-    LDFLAGS="${LDFLAGS} -framework CoreFoundation -framework IOKit"
-    # -----------------------------------------------------------------------------
-    # Pull in OpenSSL properly if on macOS
-    if brew --prefix > /dev/null 2>&1; then
-      if brew --prefix --installed openssl > /dev/null 2>&1; then
-        HOMEBREW_OPENSSL_PREFIX=$(brew --prefix --installed openssl)
-      elif brew --prefix --installed openssl@3 > /dev/null 2>&1; then
-        HOMEBREW_OPENSSL_PREFIX=$(brew --prefix --installed openssl@3)
-      elif brew --prefix --installed openssl@1.1 > /dev/null 2>&1; then
-        HOMEBREW_OPENSSL_PREFIX=$(brew --prefix --installed openssl@1.1)
-      fi
-      if test -n "${HOMEBREW_OPENSSL_PREFIX}"; then
-        OPTIONAL_OS_DEP_CFLAGS="-I${HOMEBREW_OPENSSL_PREFIX}/include"
-        CFLAGS="${CFLAGS} ${OPTIONAL_OS_DEP_CFLAGS}"
-        LDFLAGS="${LDFLAGS} -L${HOMEBREW_OPENSSL_PREFIX}/lib"
-      fi
-      HOMEBREW_PREFIX=$(brew --prefix)
-      OPTIONAL_OS_DEP_CFLAGS="${OPTIONAL_OS_DEP_CFLAGS} -I${HOMEBREW_PREFIX}/include"
-      CFLAGS="${CFLAGS} -I${HOMEBREW_PREFIX}/include"
-      LDFLAGS="${LDFLAGS} -L${HOMEBREW_PREFIX}/lib"
-    fi
-    ;;
-*)
-    build_target=linux
-    ;;
-esac
-
-AM_CONDITIONAL([FREEBSD], [test "${build_target}" = "freebsd"])
-if test "${build_target}" = "freebsd"
-then
-    AC_DEFINE([COMPILED_FOR_FREEBSD], [1], [Compiled for FreeBSD])
-fi
-
-AM_CONDITIONAL([MACOS], [test "${build_target}" = "macos"])
-if test "${build_target}" = "macos"
-then
-    AC_DEFINE([COMPILED_FOR_MACOS], [1], [Compiled for MacOS])
-fi
-
-AM_CONDITIONAL([LINUX], [test "${build_target}" = "linux"])
-if test "${build_target}" = "linux"
-then
-    AC_DEFINE([COMPILED_FOR_LINUX], [1], [Compiled for Linux])
-fi
-
-AM_CONDITIONAL([ENABLE_PLUGIN_LOCAL_LISTENERS], [test "${build_target}" = "linux"])
-
-AC_MSG_RESULT([Host OS: ${build_target}])
-
-# -----------------------------------------------------------------------------
-# hardening
-
-HARDENING_CFLAGS=""
-
-if ! echo "${originalCFLAGS}" | grep -q '\-fstack-protector'; then
-    AX_CHECK_COMPILE_FLAG(
-        [-fstack-protector-strong],
-        [HARDENING_CFLAGS="${HARDENING_CFLAGS} -fstack-protector-strong"],
-        [AX_CHECK_COMPILE_FLAG(
-            [-fstack-protector],
-            [HARDENING_CFLAGS="${HARDENING_CFLAGS} -fstack-protector"],
-            ,
-            [-Werror],
-        )],
-        [-Werror],
-    )
-fi
-
-if ! echo "${originalCFLAGS}" | grep -q '\-fno-stack-clash-protection'; then
-    AX_CHECK_COMPILE_FLAG(
-        [-fstack-clash-protection],
-        [HARDENING_CFLAGS="${HARDENING_CFLAGS} -fstack-clash-protection"],
-        ,
-        [-Werror],
-    )
-fi
-
-if ! echo "${originalCFLAGS}" | grep -q '\-fcf-protection'; then
-    AX_CHECK_COMPILE_FLAG(
-        [-fcf-protection=full],
-        [HARDENING_CFLAGS="${HARDENING_CFLAGS} -fcf-protection=full"],
-        ,
-        [-Werror],
-    )
-fi
-
-if ! echo "${originalCFLAGS}" | grep -q '\-mbranch-protection'; then
-    AX_CHECK_COMPILE_FLAG(
-        [-mbranch-protection=standard],
-        [HARDENING_CFLAGS="${HARDENING_CFLAGS} -mbranch-protection=standard"],
-        ,
-        [-Werror],
-    )
-fi
-
-if ! echo "${originalCFLAGS}" | grep -q '\-D_FORTIFY_SOURCE'; then
-    # This complex set of checks is needed because there is no clean
-    # way to verify _FORTIFY_SOURCE support without having to check for
-    # the required compiler builtins.
-    AC_CHECK_DECLS(
-        [__builtin_constant_p, __builtin_object_size, __builtin___memcpy_chk, __builtin___memmove_chk, __builtin___mempcpy_chk,
-         __builtin___memset_chk, __builtin___snprintf_chk, __builtin___sprintf_chk, __builtin___stpcpy_chk, __builtin___strcat_chk,
-         __builtin___strcpy_chk, __builtin___strncat_chk, __builtin___strncpy_chk, __builtin___vsnprintf_chk, __builtin___vsprintf_chk],
-        [HAVE_FORTIFY_SOURCE=2]
-    )
-
-    if test "x${HAVE_FORTIFY_SOURCE}" = "x2" && echo "${originalCFLAGS}" | grep -qv '\-O0'; then
-        AC_CHECK_DECL(
-            __builtin_dynamic_object_size,
-            [AX_CHECK_COMPILE_FLAG(
-                [-D_FORTIFY_SOURCE=3],
-                [HARDENING_CFLAGS="${HARDENING_CFLAGS} -D_FORTIFY_SOURCE=3"],
-                ,
-                [-Werror],
-            )],
-            [AX_CHECK_COMPILE_FLAG(
-                [-D_FORTIFY_SOURCE=2],
-                [HARDENING_CFLAGS="${HARDENING_CFLAGS} -D_FORTIFY_SOURCE=2"],
-                ,
-                [-Werror],
-            )],
-        )
-    fi
-fi
-
-# -----------------------------------------------------------------------------
-# backtrace
-
-AC_SEARCH_LIBS([backtrace], [execinfo], [AC_DEFINE([HAVE_BACKTRACE], [1], [backtrace availability])])
-
-# -----------------------------------------------------------------------------
-# pthreads
-
-ACX_PTHREAD(, [AC_MSG_ERROR([Cannot initialize pthread environment])])
-LIBS="${PTHREAD_LIBS} ${LIBS}"
-CFLAGS="${CFLAGS} ${PTHREAD_CFLAGS}"
-CC="${PTHREAD_CC}"
-
-AC_CHECK_LIB(
-[pthread],
-[pthread_getname_np],
-[AC_DEFINE([HAVE_PTHREAD_GETNAME_NP], [1], [Is set if pthread_getname_np is available])]
-)
-
-# -----------------------------------------------------------------------------
-# libdatachannel
-
-AC_CHECK_LIB([datachannel], [rtcCreatePeerConnection],
-             [LIBDATACHANNEL_FOUND=yes],
-             [LIBDATACHANNEL_FOUND=no])
-
-if test "x$LIBDATACHANNEL_FOUND" = "xyes"; then
-    AC_DEFINE([HAVE_LIBDATACHANNEL], [1], [libdatachannel usability])
-    OPTIONAL_DATACHANNEL_LIBS="-ldatachannel"
-fi
-
-# -----------------------------------------------------------------------------
-# libm
-
-AC_ARG_VAR([MATH_CFLAGS], [C compiler flags for math])
-AC_ARG_VAR([MATH_LIBS], [linker flags for math])
-if test -z "${MATH_LIBS}"; then
-    AC_CHECK_LIB(
-        [m],
-        [sin],
-        [MATH_LIBS="-lm"]
-    )
-fi
-test "${with_math}" = "yes" -a -z "${MATH_LIBS}" && AC_MSG_ERROR([math required but not found])
-
-AC_MSG_CHECKING([if libm should be used])
-if test "${with_math}" != "no" -a ! -z "${MATH_LIBS}"; then
-    with_math="yes"
-    AC_DEFINE([STORAGE_WITH_MATH], [1], [math usability])
-    OPTIONAL_MATH_CFLAGS="${MATH_CFLAGS}"
-    OPTIONAL_MATH_LIBS="${MATH_LIBS}"
-else
-    with_math="no"
-fi
-AC_MSG_RESULT([${with_math}])
-
-AC_CHECK_FUNCS([isfinite])
-AC_CHECK_FUNCS([finite])
-
-# -----------------------------------------------------------------------------
-# libuv multi-platform support library with a focus on asynchronous I/O
-# TODO: check version, uv_fs_scandir_next only available in version >= 1.0
-
-AC_CHECK_LIB(
-    [uv],
-    [uv_fs_scandir_next],
-    [UV_LIBS="-luv"]
-)
-test -z "${UV_LIBS}" && \
-    AC_MSG_ERROR([libuv required but not found. Try installing 'libuv1-dev' or 'libuv-devel'.])
-OPTIONAL_UV_CFLAGS="${UV_CFLAGS}"
-OPTIONAL_UV_LIBS="${UV_LIBS}"
-
-
-# -----------------------------------------------------------------------------
-# lz4
-
-AC_CHECK_LIB(
-    [lz4],
-    [LZ4_createStream],
-    [LZ4_LIBS_FAST="-llz4"]
-)
-
-AC_CHECK_LIB(
-    [lz4],
-    [LZ4_compress_fast_continue],
-    [LZ4_LIBS="-llz4"]
-)
-
-# -----------------------------------------------------------------------------
-# libcurl
-
-PKG_CHECK_MODULES(
-    [LIBCURL],
-    [libcurl],
-    [AC_CHECK_LIB(
-        [curl],
-        [curl_easy_init],
-        [have_libcurl=yes],
-        [have_libcurl=no]
-    )],
-    [have_libcurl=no]
-)
-
-if test "x$have_libcurl" = "xyes"; then
-    AC_DEFINE([HAVE_CURL], [1], [libcurl usability])
-    OPTIONAL_CURL_LIBS="-lcurl"
-fi
-
-# -----------------------------------------------------------------------------
-# PCRE2
-
-PKG_CHECK_MODULES(
-    [LIBPCRE2],
-    [libpcre2-8],
-    [AC_CHECK_LIB(
-        [pcre2-8],
-        [pcre2_compile_8],
-        [have_libpcre2=yes],
-        [have_libpcre2=no]
-    )],
-    [have_libpcre2=no]
-)
-
-if test "x$have_libpcre2" = "xyes"; then
-    AC_DEFINE([HAVE_PCRE2], [1], [PCRE2 usability])
-    OPTIONAL_PCRE2_LIBS="-lpcre2-8"
-fi
-
-AM_CONDITIONAL([ENABLE_LOG2JOURNAL], [test "${have_libpcre2}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# zstd
-
-AC_CHECK_LIB([zstd], [ZSTD_createCStream, ZSTD_createDStream],
-             [LIBZSTD_FOUND=yes],
-             [LIBZSTD_FOUND=no])
-
-if test "x$LIBZSTD_FOUND" = "xyes"; then
-    AC_DEFINE([ENABLE_ZSTD], [1], [libzstd usability])
-    OPTIONAL_ZSTD_LIBS="-lzstd"
-fi
-
-# -----------------------------------------------------------------------------
-# brotli
-
-AC_CHECK_LIB([brotlienc], [BrotliEncoderCreateInstance, BrotliEncoderCompressStream],
-             [LIBBROTLIENC_FOUND=yes],
-             [LIBBROTLIENC_FOUND=no])
-
-if test "x$LIBBROTLIENC_FOUND" = "xyes"; then
-    AC_DEFINE([ENABLE_BROTLIENC], [1], [libbrotlienc usability])
-    OPTIONAL_BROTLIENC_LIBS="-lbrotlienc"
-fi
-
-AC_CHECK_LIB([brotlidec], [BrotliDecoderCreateInstance, BrotliDecoderDecompressStream],
-             [LIBBROTLIDEC_FOUND=yes],
-             [LIBBROTLIDEC_FOUND=no])
-
-if test "x$LIBBROTLIDEC_FOUND" = "xyes"; then
-    AC_DEFINE([ENABLE_BROTLIDEC], [1], [libbrotlidec usability])
-    OPTIONAL_BROTLIDEC_LIBS="-lbrotlidec"
-fi
-
-# -----------------------------------------------------------------------------
-# zlib
-
-PKG_CHECK_MODULES(
-    [ZLIB],
-    [zlib],
-    [have_zlib=yes],
-    [have_zlib=no]
-)
-test "${have_zlib}" != "yes" && AC_MSG_ERROR([zlib required but not found. Try installing 'zlib1g-dev' or 'zlib-devel'.])
-
-# -----------------------------------------------------------------------------
-# libuuid
-
-PKG_CHECK_MODULES(
-    [UUID],
-    [uuid],
-    [have_uuid=yes],
-    [AC_MSG_ERROR([libuuid required but not found. Try installing 'uuid-dev' or 'libuuid-devel'.])]
-)
-OPTIONAL_UUID_CFLAGS="${UUID_CFLAGS}"
-OPTIONAL_UUID_LIBS="${UUID_LIBS}"
-
-# -----------------------------------------------------------------------------
-# OpenSSL Cryptography and SSL/TLS Toolkit
-
-AC_CHECK_LIB(
-    [crypto],
-    [SHA256_Init],
-    [SSL_LIBS="-lcrypto -lssl"]
-)
-
-AC_CHECK_LIB(
-    [crypto],
-    [X509_VERIFY_PARAM_set1_host],
-    [ssl_host_validation="yes"],
-    [ssl_host_validation="no"]
-)
-
-test -z "${SSL_LIBS}" || \
-    AC_DEFINE([HAVE_CRYPTO], [1], [libcrypto availability])
-
-if test "${ssl_host_validation}" = "no"; then
-    AC_DEFINE([HAVE_X509_VERIFY_PARAM_set1_host], [0], [ssl host validation])
-    AC_MSG_WARN([DISABLING SSL HOSTNAME VALIDATION BECAUSE IT IS NOT AVAILABLE ON THIS SYSTEM.])
-else
-    AC_DEFINE([HAVE_X509_VERIFY_PARAM_set1_host], [1], [ssl host validation])
-fi
-
-# -----------------------------------------------------------------------------
-# JSON-C library
-
-PKG_CHECK_MODULES([JSON],[json-c],AC_CHECK_LIB(
-    [json-c],
-    [json_object_get_type],
-    [JSONC_LIBS="-ljson-c"]),AC_CHECK_LIB(
-        [json],
-        [json_object_get_type],
-        [JSONC_LIBS="-ljson"])
-    )
-
-OPTIONAL_JSONC_LIBS="${JSONC_LIBS}"
-
-# -----------------------------------------------------------------------------
-# YAML library
-
-AC_CHECK_LIB(
-    [yaml],
-    [yaml_parser_initialize],
-    [YAML_LIBS="-lyaml"]
-)
-
-OPTIONAL_YAML_LIBS="${YAML_LIBS}"
-
-# -----------------------------------------------------------------------------
-# DB engine and OpenSSL
-
-test "${enable_dbengine}" = "yes" -a -z "${LZ4_LIBS}" && \
-    AC_MSG_ERROR([liblz4 required but not found. Try installing 'liblz4-dev' or 'lz4-devel'.])
-
-AC_C_BIGENDIAN([],
-    [LIBJUDY_CFLAGS="-DJU_LITTLE_ENDIAN"],
-    [AC_MSG_ERROR([Could not find out system endiannnes])])
-
-AC_CHECK_SIZEOF(void *)
-if test "$ac_cv_sizeof_void_p" = 8; then
-    AC_MSG_RESULT(Detected 64-bit Build Environment)
-    	LIBJUDY_CFLAGS="$LIBJUDY_CFLAGS -DJU_64BIT"
-else
-    AC_MSG_RESULT(Detected 32-bit Build Environment)
-        LIBJUDY_CFLAGS="$LIBJUDY_CFLAGS -UJU_64BIT"
-fi
-
-AC_SUBST([LIBJUDY_CFLAGS])
-
-JUDY_CFLAGS="-I \$(abs_top_srcdir)/libnetdata/libjudy/src"
-
-test "${enable_openssl}" = "yes" -a -z "${SSL_LIBS}" && \
-    AC_MSG_ERROR([OpenSSL required but not found. Try installing 'libssl-dev' or 'openssl-devel'.])
-
-test "${enable_dbengine}" = "yes" -a -z "${SSL_LIBS}" && \
-    AC_MSG_ERROR([OpenSSL required for DBENGINE but not found. Try installing 'libssl-dev' or 'openssl-devel'.])
-
-AC_MSG_CHECKING([if netdata dbengine should be used])
-if test "${enable_dbengine}" != "no" -a "${UV_LIBS}" -a "${LZ4_LIBS}" -a "${SSL_LIBS}"; then
-    enable_dbengine="yes"
-    AC_DEFINE([ENABLE_DBENGINE], [1], [netdata dbengine usability])
-    OPTIONAL_LZ4_CFLAGS="${LZ4_CFLAGS}"
-    OPTIONAL_LZ4_LIBS="${LZ4_LIBS}"
-    OPTIONAL_SSL_CFLAGS="${SSL_CFLAGS}"
-    OPTIONAL_SSL_LIBS="${SSL_LIBS}"
-else
-    enable_dbengine="no"
-fi
-AC_MSG_RESULT([${enable_dbengine}])
-AM_CONDITIONAL([ENABLE_DBENGINE], [test "${enable_dbengine}" = "yes"])
-
-AC_MSG_CHECKING([if openssl should be used])
-if test "${enable_openssl}" != "no" -a "${SSL_LIBS}"; then
-    enable_openssl="yes"
-    AC_DEFINE([ENABLE_OPENSSL], [1], [openssl usability])
-    OPTIONAL_SSL_CFLAGS="${SSL_CFLAGS}"
-    OPTIONAL_SSL_LIBS="${SSL_LIBS}"
-else
-    enable_openssl="no"
-fi
-AC_MSG_RESULT([${enable_openssl}])
-AM_CONDITIONAL([ENABLE_OPENSSL], [test "${enable_openssl}" = "yes"])
-
-AC_MSG_CHECKING([if lz4 should be used])
-if test "${enable_lz4}" != "no"; then
-    if test "${LZ4_LIBS_FAST}"; then
-        LIBS_BKP="${LIBS}"
-        LIBS="${LZ4_LIBS_FAST}"
-        AC_TRY_LINK(
-            [ #include <lz4.h> ],
-            [
-                LZ4_stream_t* stream = LZ4_createStream();
-            ],
-            [ enable_lz4="yes"],
-            [ enable_lz4="no" ]
-        )
-        LIBS="${LIBS_BKP}"
-        if test "${enable_lz4}" == "yes"; then
-            OPTIONAL_LZ4_LIBS="${LZ4_LIBS_FAST}"
-            AC_DEFINE([ENABLE_LZ4], [1], [lz4 usability])
-        fi
-    else
-        if test "${enable_lz4}" == "yes"; then
-            AC_MSG_ERROR([liblz4 with version >= 1.9.0 required to enable lz4. Try installing the required version of 'liblz4-dev' or 'liblz4-devel'.])
-            enable_lz4="no"
-        fi
-        enable_lz4="no"
-    fi
-else
-    enable_lz4="no"
-fi
-AC_MSG_RESULT([${enable_lz4}])
-AM_CONDITIONAL([ENABLE_LZ4], [test "${enable_lz4}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# JSON-C
-
-if test "${enable_jsonc}" != "no" -a -z "${JSONC_LIBS}"; then
-    # Try and detect manual static build presence (from netdata-installer.sh)
-    AC_MSG_CHECKING([if statically built json-c is present])
-    HAVE_libjson_c_a="no"
-    if test -f "externaldeps/jsonc/libjson-c.a"; then
-        LIBS_BKP="${LIBS}"
-        LIBS="externaldeps/jsonc/libjson-c.a"
-        AC_LINK_IFELSE([AC_LANG_SOURCE([[#include "externaldeps/jsonc/json-c/json.h"
-                                         int main (int argc, char **argv) {
-                                             struct json_object *jobj;
-                                             char *str = "{ \"msg-type\": \"random\" }";
-                                             jobj = json_tokener_parse(str);
-                                             json_object_get_type(jobj);
-                                         }]])],
-                                        [HAVE_libjson_c_a="yes"],
-                                        [HAVE_libjson_c_a="no"])
-        LIBS="${LIBS_BKP}"
-    fi
-
-	if test "${HAVE_libjson_c_a}" = "yes"; then
-		AC_DEFINE([LINK_STATIC_JSONC], [1], [static json-c should be used])
-		JSONC_LIBS="static"
-		OPTIONAL_JSONC_STATIC_CFLAGS="-I \$(abs_top_srcdir)/externaldeps/jsonc"
-	fi
-	AC_MSG_RESULT([${HAVE_libjson_c_a}])
-fi
-AM_CONDITIONAL([LINK_STATIC_JSONC], [test "${JSONC_LIBS}" = "static"])
-
-test "${enable_jsonc}" = "yes" -a -z "${JSONC_LIBS}" && \
-    AC_MSG_ERROR([JSON-C required but not found. Try installing 'libjson-c-dev' or 'json-c'.])
-
-AC_MSG_CHECKING([if json-c should be used])
-if test "${enable_jsonc}" != "no" -a "${JSONC_LIBS}"; then
-	enable_jsonc="yes"
-	AC_DEFINE([ENABLE_JSONC], [1], [netdata json-c usability])
-else
-	enable_jsonc="no"
-fi
-AC_MSG_RESULT([${enable_jsonc}])
-AM_CONDITIONAL([ENABLE_JSONC], [test "${enable_jsonc}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# libyaml
-
-PKG_CHECK_MODULES(
-    [LIBYAML],
-    [yaml-0.1],
-    [AC_CHECK_LIB(
-        [yaml],
-        [yaml_parser_initialize],
-        [have_libyaml=yes],
-        [have_libyaml=no]
-    )],
-    [have_libyaml=no]
-)
-
-if test "x$have_libyaml" = "xyes"; then
-    AC_DEFINE([HAVE_LIBYAML], [1], [libyaml usability])
-    OPTIONAL_YAML_LIBS="-lyaml"
-fi
-
-# -----------------------------------------------------------------------------
-# YAML
-
-if test -z "${YAML_LIBS}"; then
-    # Try and detect manual static build presence (from netdata-installer.sh)
-    AC_MSG_CHECKING([if statically built libyaml is present])
-    HAVE_libyaml_a="no"
-    if test -f "externaldeps/libyaml/libyaml.a"; then
-        LIBS_BKP="${LIBS}"
-        LIBS="externaldeps/libyaml/libyaml.a"
-        AC_LINK_IFELSE([AC_LANG_SOURCE([[#include "externaldeps/libyaml/yaml.h"
-                                         int main (int argc, char **argv) {
-                                             yaml_parser_t parser;
-                                             yaml_parser_initialize(&parser);
-                                         }]])],
-                                        [HAVE_libyaml_a="yes"],
-                                        [HAVE_libyaml_a="no"])
-        LIBS="${LIBS_BKP}"
-    fi
-
-	if test "${HAVE_libyaml_a}" = "yes"; then
-		AC_DEFINE([LINK_STATIC_YAML], [1], [static yaml should be used])
-		YAML_LIBS="static"
-		OPTIONAL_YAML_STATIC_CFLAGS="-I \$(abs_top_srcdir)/externaldeps/libyaml"
-	fi
-	AC_MSG_RESULT([${HAVE_libyaml_a}])
-fi
-AM_CONDITIONAL([LINK_STATIC_YAML], [test "${YAML_LIBS}" = "static"])
-
-test -z "${YAML_LIBS}" && \
-    AC_MSG_ERROR([LIBYAML required but not found. Try installing 'libyaml-dev'.])
-
-# -----------------------------------------------------------------------------
-# compiler options
-
-AC_ARG_VAR([SSE_CANDIDATE], [C compiler flags for SSE])
-AS_CASE([$host_cpu],
-    [i?86], [SSE_CANDIDATE="yes"]
-)
-AC_SUBST([SSE_CANDIDATE])
-if test "${SSE_CANDIDATE}" = "yes" -a "${enable_x86_sse}" = "yes"; then
-    opt="-msse2 -mfpmath=sse"
-    AX_CHECK_COMPILE_FLAG(${opt}, [CFLAGS="${CFLAGS} ${opt}"], [])
-fi
-
-if test "${GCC}" = "yes"; then
-    AC_DEFINE_UNQUOTED([likely(x)], [__builtin_expect(!!(x), 1)], [gcc branch optimization])
-    AC_DEFINE_UNQUOTED([unlikely(x)], [__builtin_expect(!!(x), 0)], [gcc branch optimization])
-else
-    AC_DEFINE_UNQUOTED([likely(x)], [(x)], [gcc branch optimization])
-    AC_DEFINE_UNQUOTED([unlikely(x)], [(x)], [gcc branch optimization])
-fi
-
-if test "${GCC}" = "yes"; then
-    AC_DEFINE([__always_unused], [__attribute__((unused))], [gcc unused attribute])
-    AC_DEFINE([__maybe_unused], [__attribute__((unused))], [gcc unused attribute])
-else
-    AC_DEFINE([__always_unused], [], [dummy unused attribute])
-    AC_DEFINE([__maybe_unused], [], [dummy unused attribute])
-fi
-
-if test "${enable_pedantic}" = "yes"; then
-    enable_strict="yes"
-    CFLAGS="${CFLAGS} -pedantic -Wall -Wextra -Wno-long-long"
-fi
-
-# -----------------------------------------------------------------------------
-# dlsym check
-
-AC_MSG_CHECKING(whether we can use dlsym)
-OLD_LIBS="${LIBS}"
-LIBS="-ldl"
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
-  #include <dlfcn.h>
-  static void *(*libc_malloc)(size_t);
-  int main() {
-    libc_malloc = dlsym(RTLD_NEXT, "malloc");
-  }
-]])], CAN_USE_DLSYM=yes, CAN_USE_DLSYM=no)
-LIBS="${OLD_LIBS}"
-AC_MSG_RESULT($CAN_USE_DLSYM)
-
-if test "x$CAN_USE_DLSYM" = xyes; then
-    AC_DEFINE([HAVE_DLSYM], [1], [dlsym usability])
-    OPTIONAL_DL_LIBS="-ldl"
-fi
-AC_SUBST([OPTIONAL_DL_LIBS])
-
-# -----------------------------------------------------------------------------
-# memory allocation library
-
-AC_MSG_CHECKING([for memory allocator])
-TS_CHECK_JEMALLOC
-if test "$has_jemalloc" = "1"; then
-    AC_DEFINE([ENABLE_JEMALLOC], [1], [compile and link with jemalloc])
-    AC_MSG_RESULT([jemalloc])
-else
-    TS_CHECK_TCMALLOC
-    if test "$has_tcmalloc" = "1"; then
-        AC_DEFINE([ENABLE_TCMALLOC], [1], [compile and link with tcmalloc])
-        AC_MSG_RESULT([tcmalloc])
-    else
-        AC_MSG_RESULT([system])
-        AC_C_MALLOPT
-        AC_C_MALLINFO
-    fi
-fi
-
-
-# -----------------------------------------------------------------------------
-# libcap
-
-PKG_CHECK_MODULES(
-    [LIBCAP],
-    [libcap],
-    [AC_CHECK_LIB([cap], [cap_get_proc, cap_set_proc],
-        [AC_CHECK_HEADER(
-            [sys/capability.h],
-            [have_libcap=yes],
-            [have_libcap=no]
-        )],
-        [have_libcap=no]
-    )],
-    [have_libcap=no]
-)
-test "${with_libcap}" = "yes" -a "${have_libcap}" != "yes" && AC_MSG_ERROR([libcap required but not found.])
-
-AC_MSG_CHECKING([if libcap should be used])
-if test "${with_libcap}" != "no" -a "${have_libcap}" = "yes"; then
-    with_libcap="yes"
-    AC_DEFINE([HAVE_CAPABILITY], [1], [libcap usability])
-    OPTIONAL_LIBCAP_CFLAGS="${LIBCAP_CFLAGS}"
-    OPTIONAL_LIBCAP_LIBS="${LIBCAP_LIBS}"
-else
-    with_libcap="no"
-fi
-AC_MSG_RESULT([${with_libcap}])
-AM_CONDITIONAL([ENABLE_CAPABILITY], [test "${with_libcap}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# H2O related
-
-can_build_h2o="no"
-if test "${enable_h2o}" != "no"; then
-    can_build_h2o="yes"
-    AC_MSG_CHECKING([can build H2O])
-    if test -z "${UV_LIBS}"; then
-        can_build_h2o="no"
-    fi
-    if test -n "${SSL_LIBS}"; then
-        OPTIONAL_SSL_CFLAGS="${SSL_CFLAGS}"
-        OPTIONAL_SSL_LIBS="${SSL_LIBS}"
-    else
-        can_build_h2o="no"
-    fi
-    AC_MSG_RESULT([${can_build_h2o}])
-
-    if test "${can_build_h2o}" = "no" -a "${enable_h2o}" = "yes"; then
-        AC_MSG_ERROR([H2O was requested but it cannot be built])
-    fi
-
-    if test "${can_build_h2o}" = "yes"; then
-        AC_DEFINE([ENABLE_H2O], [1], [H2O web server])
-        H2O_CFLAGS="-Wno-unused-result -Wno-misleading-indentation -Wno-format-security -Wno-format -Wno-unused-function -Wno-unused-parameter -Wno-type-limits -Wno-unused-but-set-variable -Wno-implicit-fallthrough -I\$(abs_top_srcdir)/web/server/h2o/libh2o/include -I\$(abs_top_srcdir)/web/server/h2o/libh2o/deps/picotls/include -I\$(abs_top_srcdir)/web/server/h2o/libh2o/deps/quicly/include -DH2O_USE_LIBUV=0"
-    fi
-fi
-AM_CONDITIONAL([ENABLE_H2O], [test "${can_build_h2o}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# ACLK
-
-bundled_proto_avail="no"
-if test "${with_bundled_protobuf}" != "no"; then
-    AC_MSG_CHECKING([is bundled protobuf available])
-    if test -f "externaldeps/protobuf/src/protoc"; then
-        bundled_proto_avail="yes"
-    fi
-    AC_MSG_RESULT([${bundled_proto_avail}])
-    if test "${with_bundled_protobuf}" == "yes" -a "${bundled_proto_avail}" != "yes"; then
-        AC_MSG_ERROR([Bundled protobuf requested using --with-bundled-protobuf but it cannot be used/found])
-    fi
-    if test "${with_bundled_protobuf}" == "detect" -a "${bundled_proto_avail}" == "yes"; then
-        with_bundled_protobuf="yes"
-    fi
-fi
-
-AM_CONDITIONAL([MQTT_WSS_DEBUG], [test "${aclk_ssl_debug}" = "yes"])
-if test "${aclk_ssl_debug}" = "yes"; then
-    AC_DEFINE([MQTT_WSS_DEBUG], [1], [ACLK SSL allow debugging])
-fi
-
-if test "${with_bundled_protobuf}" != "yes"; then
-PKG_CHECK_MODULES(
-    [PROTOBUF],
-    [protobuf >= 3],
-    [have_libprotobuf=yes],
-    [have_libprotobuf=no]
-)
-
-AC_PATH_PROG([PROTOC], [protoc], [no])
-AS_IF(
-    [test x"${PROTOC}" == x"no"],
-    [have_protoc=no],
-    [have_protoc=yes]
-)
-else
-    AC_MSG_NOTICE([using bundled protobuf])
-    AC_DEFINE([BUNDLED_PROTOBUF], [1], [Using a bundled copy of protobuf])
-    PROTOC="\$(abs_top_srcdir)/externaldeps/protobuf/src/protoc"
-    PROTOBUF_CFLAGS="-I \$(abs_top_srcdir)/externaldeps/protobuf/src"
-    PROTOBUF_LIBS="\$(abs_top_srcdir)/externaldeps/protobuf/src/.libs/libprotobuf.a"
-    have_libprotobuf="yes"
-    have_protoc="yes"
-fi
-
-AC_PATH_PROG([CXX_BINARY], [${CXX}], [no])
-AS_IF(
-    [test x"${CXX_BINARY}" == x"no"],
-    [have_CXX_compiler=no],
-    [have_CXX_compiler=yes]
-)
-
-if test "${have_libprotobuf}" == "yes" && test "${have_CXX_compiler}" == "yes"; then
-    AC_DEFINE([HAVE_PROTOBUF], [1], [Protobuf is available])
-fi
-
-AC_MSG_CHECKING([if Cloud functionality should be enabled])
-AC_MSG_RESULT([${enable_cloud}])
-
-if test "$enable_cloud" != "no"; then
-    AC_MSG_NOTICE([Checking if ACLK can be built])
-    can_enable_ng="yes"
-    AC_MSG_CHECKING([if git submodules present for ACLK])
-    if test -f "mqtt_websockets/src/mqtt_wss_client.c"; then
-        AC_MSG_RESULT([yes])
-    else
-        AC_MSG_RESULT([no])
-        can_enable_ng="no"
-    fi
-    AC_MSG_CHECKING([if SSL available for ACLK])
-    if test -n "${SSL_LIBS}"; then
-        AC_MSG_RESULT([yes])
-        OPTIONAL_SSL_CFLAGS="${SSL_CFLAGS}"
-        OPTIONAL_SSL_LIBS="${SSL_LIBS}"
-    else
-        AC_MSG_RESULT([no])
-    fi
-    AC_MSG_CHECKING([if JSON-C available for ACLK])
-    if test "$enable_jsonc" != "yes"; then
-        AC_MSG_RESULT([no])
-        can_enable_ng="no"
-    else
-        AC_MSG_RESULT([yes])
-    fi
-
-    AC_MSG_CHECKING([if protobuf available for ACLK New Cloud Protocol])
-    if test "${have_libprotobuf}" != "yes"; then
-        AC_MSG_RESULT([no])
-        can_enable_ng="no"
-    else
-        AC_MSG_RESULT([yes])
-    fi
-    AC_MSG_CHECKING([if protoc available for ACLK New Cloud Protocol])
-    if test "${have_protoc}" != "yes"; then
-        AC_MSG_RESULT([no])
-        can_enable_ng="no"
-    else
-        AC_MSG_RESULT([yes])
-    fi
-    AC_MSG_CHECKING([if C++ compiler available for ACLK New Cloud Protocol])
-    if test "${have_CXX_compiler}" != "yes"; then
-        AC_MSG_RESULT([no])
-        can_enable_ng="no"
-    else
-        AC_MSG_RESULT([yes])
-    fi
-
-    AC_MSG_CHECKING([ACLK Next Generation can be built])
-    AC_MSG_RESULT([${can_enable_ng}])
-    if test "$can_enable_ng" = "no" -a "$enable_cloud" = "yes"; then
-        AC_MSG_ERROR([You have requested --with-cloud but ACLK can't be built. See reasons in lines above])
-    fi
-    if test "$can_enable_ng" = "yes"; then
-        enable_aclk="yes"
-        AC_DEFINE([ENABLE_ACLK], [1], [netdata ACLK])
-        OPTIONAL_ACLK_CFLAGS="-I \$(abs_top_srcdir)/mqtt_websockets/src/include -I \$(abs_top_srcdir)/mqtt_websockets/c-rbuf/include -I \$(abs_top_srcdir)/aclk/aclk-schemas"
-        OPTIONAL_PROTOBUF_CFLAGS="${PROTOBUF_CFLAGS}"
-        OPTIONAL_PROTOBUF_LIBS="${PROTOBUF_LIBS}"
-    fi
-fi
-
-if test "$enable_cloud" = "yes" -a "$enable_aclk" != "yes"; then
-    AC_MSG_ERROR([ACLK can't be built but --enable-cloud was requested])
-fi
-
-AC_SUBST([enable_cloud])
-AC_SUBST([enable_aclk])
-AM_CONDITIONAL([ENABLE_ACLK], [test "${enable_aclk}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# apps.plugin
-
-AC_MSG_CHECKING([if apps.plugin should be enabled])
-if test "${build_target}" != "macos"; then
-    AC_DEFINE([ENABLE_APPS_PLUGIN], [1], [apps.plugin])
-    enable_plugin_apps="yes"
-else
-    enable_plugin_apps="no"
-fi
-AC_MSG_RESULT([${enable_plugin_apps}])
-AM_CONDITIONAL([ENABLE_PLUGIN_APPS], [test "${enable_plugin_apps}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# freeipmi.plugin - libipmimonitoring
-
-PKG_CHECK_MODULES(
-    [IPMIMONITORING],
-    [libipmimonitoring],
-    [AC_CHECK_LIB([ipmimonitoring], [
-        ipmi_monitoring_sensor_readings_by_record_id,
-        ipmi_monitoring_sensor_readings_by_sensor_type,
-        ipmi_monitoring_sensor_read_sensor_number,
-        ipmi_monitoring_sensor_read_sensor_name,
-        ipmi_monitoring_sensor_read_sensor_state,
-        ipmi_monitoring_sensor_read_sensor_units,
-        ipmi_monitoring_sensor_iterator_next,
-        ipmi_monitoring_ctx_sensor_config_file,
-        ipmi_monitoring_ctx_sdr_cache_directory,
-        ipmi_monitoring_ctx_errormsg,
-        ipmi_monitoring_ctx_create
-    ],
-        [AC_CHECK_HEADER(
-            [ipmi_monitoring.h],
-            [AC_CHECK_HEADER(
-                [ipmi_monitoring_bitmasks.h],
-                [have_ipmimonitoring=yes],
-                [have_ipmimonitoring=no]
-            )],
-            [have_ipmimonitoring=no]
-        )],
-        [have_ipmimonitoring=no]
-    )],
-    [have_ipmimonitoring=no]
-)
-test "${enable_plugin_freeipmi}" = "yes" -a "${have_ipmimonitoring}" != "yes" && \
-    AC_MSG_ERROR([ipmimonitoring required but not found. Try installing 'libipmimonitoring-dev' or 'libipmimonitoring-devel'])
-
-AC_MSG_CHECKING([if freeipmi.plugin should be enabled])
-if test "${enable_plugin_freeipmi}" != "no" -a "${have_ipmimonitoring}" = "yes"; then
-    enable_plugin_freeipmi="yes"
-    AC_DEFINE([HAVE_FREEIPMI], [1], [ipmimonitoring usability])
-    OPTIONAL_IPMIMONITORING_CFLAGS="${IPMIMONITORING_CFLAGS}"
-    OPTIONAL_IPMIMONITORING_LIBS="${IPMIMONITORING_LIBS}"
-else
-    enable_plugin_freeipmi="no"
-fi
-AC_MSG_RESULT([${enable_plugin_freeipmi}])
-AM_CONDITIONAL([ENABLE_PLUGIN_FREEIPMI], [test "${enable_plugin_freeipmi}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# systemd-journal.plugin - systemd
-
-LIBS_BAK="${LIBS}"
-
-AC_CHECK_LIB([systemd], [sd_journal_open], [have_systemd_libs=yes], [have_systemd_libs=no])
-AC_CHECK_HEADERS([systemd/sd-journal.h], [have_systemd_journal_header=yes], [have_systemd_journal_header=no])
-
-if test "${have_systemd_libs}" = "yes" -a "${have_systemd_journal_header}" = "yes"; then
-    have_systemd="yes"
-else
-    have_systemd="no"
-fi
-
-test "${enable_plugin_systemd_journal}" = "yes" -a "${have_systemd}" != "yes" && \
-    AC_MSG_ERROR([systemd is required but not found. Try installing 'libsystemd-dev' or 'libsystemd-devel'])
-
-AC_MSG_CHECKING([if systemd-journal.plugin should be enabled])
-if test "${enable_plugin_systemd_journal}" != "no" -a "${have_systemd}" = "yes"; then
-    enable_plugin_systemd_journal="yes"
-    AC_DEFINE([HAVE_SYSTEMD], [1], [systemd usability])
-    OPTIONAL_SYSTEMD_CFLAGS="-I/usr/include"
-    OPTIONAL_SYSTEMD_LIBS="-lsystemd"
-else
-    enable_plugin_systemd_journal="no"
-fi
-AC_MSG_RESULT([${enable_plugin_systemd_journal}])
-AM_CONDITIONAL([ENABLE_PLUGIN_SYSTEMD_JOURNAL], [test "${enable_plugin_systemd_journal}" = "yes"])
-
-AC_CHECK_LIB([systemd], [sd_journal_open_files_fd], [have_sd_journal_open_files_fd=yes], [have_sd_journal_open_files_fd=no])
-if test "${have_sd_journal_open_files_fd}" = "yes"; then
-    AC_DEFINE([HAVE_SD_JOURNAL_OPEN_FILES_FD], [1], [sd_journal_open_files_fd usability])
-fi
-
-AC_CHECK_LIB([systemd], [sd_journal_restart_fields], [have_sd_journal_restart_fields=yes], [have_sd_journal_restart_fields=no])
-if test "${have_sd_journal_restart_fields}" = "yes"; then
-    AC_DEFINE([HAVE_SD_JOURNAL_RESTART_FIELDS], [1], [sd_journal_restart_fields usability])
-fi
-
-AC_CHECK_LIB([systemd], [sd_journal_get_seqnum], [have_sd_journal_get_seqnum=yes], [have_sd_journal_get_seqnum=no])
-if test "${have_sd_journal_get_seqnum}" = "yes"; then
-    AC_DEFINE([HAVE_SD_JOURNAL_GET_SEQNUM], [1], [sd_journal_get_seqnum usability])
-fi
-
-AC_CHECK_LIB([systemd], [sd_bus_default_system, sd_bus_call_method, sd_bus_message_enter_container, sd_bus_message_read, sd_bus_message_exit_container],
-             [SYSTEMD_DBUS_FOUND=yes],
-             [SYSTEMD_DBUS_FOUND=no])
-
-if test "x$SYSTEMD_DBUS_FOUND" = "xyes"; then
-    AC_DEFINE([ENABLE_SYSTEMD_DBUS], [1], [libsystemd dbus usability])
-fi
-
-AC_MSG_NOTICE([OPTIONAL_SYSTEMD_LIBS is set to: ${OPTIONAL_SYSTEMD_LIBS}])
-
-if test "${enable_plugin_systemd_journal}" = "yes"; then
-    AC_MSG_CHECKING([for SD_JOURNAL_OS_ROOT in systemd])
-    AC_COMPILE_IFELSE(
-        [AC_LANG_PROGRAM(
-            [[#include <systemd/sd-journal.h>]],
-            [[int x = SD_JOURNAL_OS_ROOT;]]
-        )],
-        [AC_DEFINE(HAVE_SD_JOURNAL_OS_ROOT, 1, [Define if SD_JOURNAL_OS_ROOT is available])
-            AC_MSG_RESULT(yes)],
-            [AC_MSG_RESULT(no)]
-    )
-fi
-
-LIBS="${LIBS_BAK}"
-
-# -----------------------------------------------------------------------------
-# cups.plugin - libcups
-
-# Only check most recently added method of cups
-AC_CHECK_LIB([cups], [httpConnect2],
-    [AC_CHECK_HEADER(
-        [cups/cups.h],
-        [have_cups=yes],
-        [have_cups=no]
-    )],
-    [have_cups=no]
-)
-
-test "${enable_plugin_cups}" = "yes" -a "${have_cups}" != "yes" && \
-    AC_MSG_ERROR([cups required but not found. Try installing 'cups'])
-
-AC_ARG_WITH([cups-config],
-    [AS_HELP_STRING([--with-cups-config=path], [Specify path to cups-config executable.])],
-    [with_cups_config="$withval"],
-    [with_cups_config=system]
-    )
-
-AS_IF([test "x$with_cups_config" != "xsystem"], [
-	CUPSCONFIG=$with_cups_config
-], [
-	AC_PATH_TOOL(CUPSCONFIG, [cups-config])
-	AS_IF([test -z "$CUPSCONFIG"], [
-		have_cups=no
-	])
-])
-
-AC_MSG_CHECKING([if cups.plugin should be enabled])
-if test "${enable_plugin_cups}" != "no" -a "${have_cups}" = "yes"; then
-    enable_plugin_cups="yes"
-    AC_DEFINE([HAVE_CUPS], [1], [cups usability])
-
-    CUPS_CFLAGS="${CUPS_CFLAGS} `$CUPSCONFIG --cflags`"
-    CUPS_LIBS="${CUPS_LIBS} `$CUPSCONFIG --libs`"
-
-    OPTIONAL_CUPS_CFLAGS="${CUPS_CFLAGS}"
-    OPTIONAL_CUPS_LIBS="${CUPS_LIBS}"
-else
-    enable_plugin_cups="no"
-fi
-AC_MSG_RESULT([${enable_plugin_cups}])
-AM_CONDITIONAL([ENABLE_PLUGIN_CUPS], [test "${enable_plugin_cups}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# nfacct.plugin - libmnl, libnetfilter_acct
-
-AC_CHECK_HEADER(
-    [linux/netfilter/nfnetlink_conntrack.h],
-    [AC_CHECK_DECL(
-        [CTA_STATS_MAX],
-        [have_nfnetlink_conntrack=yes],
-        [have_nfnetlink_conntrack=no],
-        [#include <linux/netfilter/nfnetlink_conntrack.h>]
-    )],
-    [have_nfnetlink_conntrack=no]
-)
-
-LIBS_BAK="${LIBS}"
-LIBS="${LIBS} -lmnl"
-
-PKG_CHECK_MODULES(
-    [LIBMNL],
-    [libmnl],
-    [AC_CHECK_LIB(
-        [mnl],
-        [mnl_socket_open],
-        [have_libmnl=yes],
-        [have_libmnl=no]
-    )],
-    [have_libmnl=no]
-)
-
-LIBS="${LIBS}"
-
-PKG_CHECK_MODULES(
-    [NFACCT],
-    [libnetfilter_acct],
-    AC_SEARCH_LIBS(
-        [nfacct_alloc],
-        [netfilter_acct libnetfilter_acct],
-        [have_libnetfilter_acct=yes],
-        [have_libnetfilter_acct=no],
-        [${LIBS} -L/libnetfilter-acct-static/lib/libnetfilter_acct.a]
-    )],
-    [have_libnetfilter_acct=no]
-)
-
-LIBS="${LIBS_BAK}"
-
-test "${enable_plugin_nfacct}" = "yes" -a "${have_nfnetlink_conntrack}" != "yes" && \
-    AC_MSG_ERROR([nfnetlink_conntrack.h required but not found or too old])
-
-test "${enable_plugin_nfacct}" = "yes" -a "${have_libnetfilter_acct}" != "yes" && \
-    AC_MSG_ERROR([netfilter_acct required but not found])
-
-test "${enable_plugin_nfacct}" = "yes" -a "${have_libmnl}" != "yes" && \
-    AC_MSG_ERROR([libmnl required but not found. Try installing 'libmnl-dev' or 'libmnl-devel'])
-
-AC_MSG_CHECKING([if nfacct.plugin should be enabled])
-if test "${enable_plugin_nfacct}" != "no" -a "${have_libnetfilter_acct}" = "yes" \
-                                          -a "${have_libmnl}" = "yes" \
-                                          -a "${have_nfnetlink_conntrack}" = "yes"; then
-    enable_plugin_nfacct="yes"
-    AC_DEFINE([HAVE_NFACCT], [1], [netfilter accounting usability])
-    OPTIONAL_NFACCT_CFLAGS="${NFACCT_CFLAGS} ${LIBMNL_CFLAGS}"
-    OPTIONAL_NFACCT_LIBS="${NFACCT_LIBS} ${LIBMNL_LIBS}"
-else
-    enable_plugin_nfacct="no"
-fi
-AC_MSG_RESULT([${enable_plugin_nfacct}])
-AM_CONDITIONAL([ENABLE_PLUGIN_NFACCT], [test "${enable_plugin_nfacct}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# xenstat.plugin - libxenstat
-
-PKG_CHECK_MODULES(
-    [YAJL],
-    [yajl],
-    [AC_CHECK_LIB(
-        [yajl],
-        [yajl_tree_get],
-        [have_libyajl=yes],
-        [have_libyajl=no]
-    )],
-    [have_libyajl=no]
-)
-
-AC_CHECK_LIB(
-    [xenstat],
-    [xenstat_init],
-    [AC_CHECK_HEADER(
-        [xenstat.h],
-        [have_libxenstat=yes],
-        [have_libxenstat=no]
-    )],
-    [have_libxenstat=no],
-    [-lyajl]
-)
-
-PKG_CHECK_MODULES(
-    [XENLIGHT],
-    [xenlight],
-    [AC_CHECK_LIB(
-        [xenlight],
-        [libxl_domain_info],
-        [AC_CHECK_HEADER(
-            [libxl.h],
-            [have_libxenlight=yes],
-            [have_libxenlight=no]
-        )],
-        [have_libxenlight=no]
-    )],
-    [have_libxenlight=no]
-)
-
-test "${enable_plugin_xenstat}" = "yes" -a "${have_libxenstat}" != "yes" && \
-    AC_MSG_ERROR([libxenstat required but not found. try installing 'xen-dom0-libs-devel'])
-
-test "${enable_plugin_xenstat}" = "yes" -a "${have_libxenlight}" != "yes" && \
-    AC_MSG_ERROR([libxenlight required but not found. try installing 'xen-dom0-libs-devel'])
-
-test "${enable_plugin_xenstat}" = "yes" -a "${have_libyajl}" != "yes" && \
-    AC_MSG_ERROR([libyajl required but not found. Try installing 'yajl-devel'])
-
-AC_MSG_CHECKING([if xenstat.plugin should be enabled])
-if test "${enable_plugin_xenstat}" != "no" -a "${have_libxenstat}" = "yes" -a "${have_libxenlight}" = "yes" -a "${have_libyajl}" = "yes"; then
-    enable_plugin_xenstat="yes"
-    AC_DEFINE([HAVE_LIBXENSTAT], [1], [libxenstat usability])
-    OPTIONAL_XENSTAT_CFLAGS="${XENLIGHT_CFLAGS} ${YAJL_CFLAGS}"
-    OPTIONAL_XENSTAT_LIBS="-lxenstat ${XENLIGHT_LIBS} ${YAJL_LIBS}"
-else
-    enable_plugin_xenstat="no"
-fi
-AC_MSG_RESULT([${enable_plugin_xenstat}])
-AM_CONDITIONAL([ENABLE_PLUGIN_XENSTAT], [test "${enable_plugin_xenstat}" = "yes"])
-
-if test "${enable_plugin_xenstat}" == "yes"; then
-    AC_MSG_CHECKING([for xenstat_vbd_error in -lxenstat])
-    AC_TRY_LINK(
-        [ #include <xenstat.h> ],
-        [
-            xenstat_vbd * vbd;
-            int out = xenstat_vbd_error(vbd);
-        ],
-        [
-            have_xenstat_vbd_error=yes
-            AC_DEFINE([HAVE_XENSTAT_VBD_ERROR], [1], [xenstat_vbd_error usability])
-        ],
-        [ have_xenstat_vbd_error=no ]
-    )
-    AC_MSG_RESULT([${have_xenstat_vbd_error}])
-fi
-
-# -----------------------------------------------------------------------------
-# perf.plugin
-
-AC_CHECK_HEADER(
-    [linux/perf_event.h],
-    [AC_CHECK_DECL(
-        [PERF_COUNT_HW_REF_CPU_CYCLES],
-        [have_perf_event=yes],
-        [have_perf_event=no],
-        [#include <linux/perf_event.h>]
-    )],
-    [have_perf_event=no]
-)
-
-AC_MSG_CHECKING([if perf.plugin should be enabled])
-if test "${build_target}" == "linux" -a "${have_perf_event}" = "yes"; then
-    AC_DEFINE([ENABLE_PERF_PLUGIN], [1], [perf.plugin])
-    enable_plugin_perf="yes"
-else
-    enable_plugin_perf="no"
-fi
-AC_MSG_RESULT([${enable_plugin_perf}])
-AM_CONDITIONAL([ENABLE_PLUGIN_PERF], [test "${enable_plugin_perf}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# gtest/gmock
-
-if test "${enable_gtests}" = "yes"; then
-    AC_MSG_CHECKING([if gtest can be found])
-
-    PKG_CHECK_MODULES([GTEST], [gtest], [have_gtest=yes], [have_gtest=no])
-
-    if test "${have_gtest}" = "yes"; then
-        OPTIONAL_GTEST_CFLAGS="${GTEST_CFLAGS}"
-        OPTIONAL_GTEST_LIBS="${GTEST_LIBS}"
-
-        AC_DEFINE([HAVE_GTEST], [1], [gtest availability])
-    fi
-fi
-
-# -----------------------------------------------------------------------------
-# ml - anomaly detection
-
-# Check if uuid is available. Fail if ML was explicitly requested.
-if test "${enable_ml}" = "yes" -a "${have_uuid}" != "yes"; then
-    AC_MSG_ERROR([You have explicitly requested --enable-ml functionality but libuuid can not be found.])
-fi
-
-# Check if submodules have not been fetched. Fail if ML was explicitly requested.
-AC_MSG_CHECKING([if git submodules are present for machine learning functionality])
-if test -f "ml/dlib/dlib/all/source.cpp"; then
-    AC_MSG_RESULT([yes])
-    have_ml_submodules="yes"
-    AC_DEFINE([HAVE_DLIB], [1], [dlib availability])
-else
-    AC_MSG_RESULT([no])
-    have_ml_submodules="no"
-fi
-
-if test "${enable_ml}" = "yes" -a "${have_ml_submodules}" = "no"; then
-    AC_MSG_ERROR([You have explicitly requested --enable-ml functionality but it cannot be built because the required git submodules are missing.])
-fi
-
-if test "${enable_ml}" = "yes" -a "${have_cxx11}" = "no"; then
-    AC_MSG_ERROR([You have explicitly requested --enable-ml functionality but it cannot be built without a C++11 toolchain.])
-fi
-
-# Decide if we should build ML
-if test "${enable_ml}" != "no" -a "${have_ml_submodules}" = "yes" -a "${have_cxx11}" = "yes" -a "${have_uuid}" = "yes"; then
-    build_ml="yes"
-else
-    build_ml="no"
-fi
-
-AM_CONDITIONAL([ENABLE_ML], [test "${build_ml}" = "yes"])
-if test "${build_ml}" = "yes"; then
-    AC_DEFINE([ENABLE_ML], [1], [anomaly detection usability])
-    OPTIONAL_ML_CFLAGS="-DDLIB_NO_GUI_SUPPORT -I \$(abs_top_srcdir)/ml/dlib"
-    OPTIONAL_ML_LIBS=""
-fi
-
-
-# -----------------------------------------------------------------------------
-# logsmanagement
-
-LIBS_BAK="${LIBS}"
-
-# Check if submodules have not been fetched. Fail if Logs Management was explicitly requested.
-
-AC_MSG_CHECKING([if git submodules are present for logs management functionality])
-if test -f "fluent-bit/CMakeLists.txt"; then
-    AC_MSG_RESULT([yes])
-    have_logsmanagement_submodules="yes"
-else
-    AC_MSG_RESULT([no])
-    have_logsmanagement_submodules="no"
-fi
-
-if test "${enable_logsmanagement}" != "no" -a "${have_logsmanagement_submodules}" = "no"; then
-    AC_MSG_WARN([Logs management cannot be built because the required git submodules are missing.])
-fi
-
-if test "${enable_logsmanagement}" != "no" -a "x$CAN_USE_DLSYM" = xno; then
-    AC_MSG_WARN([Logs management cannot be built because dlsym cannot be used.])
-fi
-
-# Decide if we should build Logs Management
-if test "${enable_logsmanagement}" != "no" -a "${have_logsmanagement_submodules}" = "yes" -a "x$CAN_USE_DLSYM" = xyes; then
-    build_logsmanagement="yes"
-else
-    build_logsmanagement="no"
-fi
-
-AM_CONDITIONAL([ENABLE_LOGSMANAGEMENT], [test "${build_logsmanagement}" = "yes"])
-if test "${build_logsmanagement}" = "yes"; then
-    AC_DEFINE([ENABLE_LOGSMANAGEMENT], [1], [enable logs management functionality])
-fi
-
-# Decide if we should build Logs Management tests.
-if test "${build_logsmanagement}" = "yes" -a "${enable_logsmanagement_tests}" = "yes"; then
-    build_logsmanagement_tests="yes"
-else
-    build_logsmanagement_tests="no"
-fi
-
-AM_CONDITIONAL([ENABLE_LOGSMANAGEMENT_TESTS], [test "${build_logsmanagement_tests}" = "yes"])
-if test "${build_logsmanagement_tests}" = "yes"; then
-    AC_DEFINE([ENABLE_LOGSMANAGEMENT_TESTS], [1], [logs management tests])
-fi
-
-LIBS="${LIBS_BAK}"
-
-# -----------------------------------------------------------------------------
-# debugfs.plugin
-
-if test "${build_target}" = "linux"; then
-    AC_DEFINE([ENABLE_DEBUGFS_PLUGIN], [1], [debugfs.plugin])
-    enable_plugin_debugfs="yes"
-else
-    enable_plugin_debugfs="no"
-fi
-
-AC_MSG_CHECKING([if debugfs.plugin should be enabled])
-AC_MSG_RESULT([${enable_plugin_debugfs}])
-AM_CONDITIONAL([ENABLE_PLUGIN_DEBUGFS], [test "${enable_plugin_debugfs}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# ebpf.plugin
-
-if test "${build_target}" = "linux" -a "${enable_ebpf}" != "no"; then
-    PKG_CHECK_MODULES(
-        [LIBELF],
-        [libelf],
-        [have_libelf=yes],
-        [have_libelf=no]
-    )
-
-    AC_CHECK_TYPE(
-        [struct bpf_prog_info],
-        [have_bpf=yes],
-        [have_bpf=no],
-        [#include <linux/bpf.h>]
-    )
-
-    AC_CHECK_FILE(
-        externaldeps/libbpf/libbpf.a,
-        [have_libbpf=yes],
-        [have_libbpf=no]
-    )
-
-    if test "${have_libelf}" = "yes" -a \
-            "${have_bpf}" = "yes" -a \
-            "${have_libbpf}" = "yes"; then
-        OPTIONAL_BPF_CFLAGS="${LIBELF_CFLAGS} -I \$(abs_top_srcdir)/externaldeps/libbpf/include -I \$(abs_top_srcdir)/externaldeps/libbpf/include/uapi"
-        OPTIONAL_BPF_LIBS="\$(abs_top_srcdir)/externaldeps/libbpf/libbpf.a ${LIBELF_LIBS}"
-        AC_DEFINE([HAVE_LIBBPF], [1], [libbpf usability])
-        enable_ebpf="yes"
-    else
-        enable_ebpf="no"
-    fi
-else
-    enable_ebpf="no"
-fi
-AC_MSG_CHECKING([if ebpf.plugin should be enabled])
-AC_MSG_RESULT([${enable_ebpf}])
-AM_CONDITIONAL([ENABLE_PLUGIN_EBPF], [test "${enable_ebpf}" = "yes"])
-
-# -----------------------------------------------------------------------------
-# slabinfo.plugin
-
-AC_MSG_CHECKING([if slabinfo.plugin should be enabled])
-if test "${build_target}" == "linux"; then
-    AC_DEFINE([ENABLE_SLABINFO], [1], [slabinfo plugin])
-    enable_plugin_slabinfo="yes"
-else
-    enable_plugin_slabinfo="no"
-fi
-AC_MSG_RESULT([${enable_plugin_slabinfo}])
-AM_CONDITIONAL([ENABLE_PLUGIN_SLABINFO], [test "${enable_plugin_slabinfo}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# AWS Kinesis exporting connector - libaws-cpp-sdk-kinesis, libaws-cpp-sdk-core, libssl, libcrypto, libcurl
-
-PKG_CHECK_MODULES(
-    [LIBCRYPTO],
-    [libcrypto],
-    [AC_CHECK_LIB(
-        [crypto],
-        [CRYPTO_new_ex_data],
-        [have_libcrypto=yes],
-        [have_libcrypto=no]
-    )],
-    [have_libcrypto=no]
-)
-
-PKG_CHECK_MODULES(
-    [LIBSSL],
-    [libssl],
-    [AC_CHECK_LIB(
-        [ssl],
-        [SSL_connect],
-        [have_libssl=yes],
-        [have_libssl=no]
-    )],
-    [have_libssl=no]
-)
-
-PKG_CHECK_MODULES(
-    [AWS_CPP_SDK_CORE],
-    [aws-cpp-sdk-core],
-    [have_libaws_cpp_sdk_core=yes],
-    [have_libaws_cpp_sdk_core=no]
-)
-
-PKG_CHECK_MODULES(
-    [AWS_CPP_SDK_KINESIS],
-    [aws-cpp-sdk-kinesis],
-    [have_libaws_cpp_sdk_kinesis=yes],
-    [have_libaws_cpp_sdk_kinesis=no]
-)
-
-test "${enable_exporting_kinesis}" = "yes" -a "${have_libaws_cpp_sdk_kinesis}" != "yes" && \
-    AC_MSG_ERROR([libaws-cpp-sdk-kinesis required but not found. try installing AWS C++ SDK])
-
-test "${enable_exporting_kinesis}" = "yes" -a "${have_libaws_cpp_sdk_core}" != "yes" && \
-    AC_MSG_ERROR([libaws-cpp-sdk-core required but not found. try installing AWS C++ SDK])
-
-test "${enable_exporting_kinesis}" = "yes" -a "${have_libcurl}" != "yes" && \
-    AC_MSG_ERROR([libcurl required but not found])
-
-test "${enable_exporting_kinesis}" = "yes" -a "${have_libssl}" != "yes" && \
-    AC_MSG_ERROR([libssl required but not found])
-
-test "${enable_exporting_kinesis}" = "yes" -a "${have_libcrypto}" != "yes" && \
-    AC_MSG_ERROR([libcrypto required but not found])
-
-AC_MSG_CHECKING([if kinesis exporting connector should be enabled])
-if test "${enable_exporting_kinesis}" != "no" -a "${have_libaws_cpp_sdk_kinesis}" = "yes" \
-                                            -a "${have_libaws_cpp_sdk_core}" = "yes" \
-                                            -a "${have_libcurl}" = "yes" \
-                                            -a "${have_libssl}" = "yes" \
-                                            -a "${have_libcrypto}" = "yes"; then
-    enable_exporting_kinesis="yes"
-    AC_DEFINE([HAVE_KINESIS], [1], [libaws-cpp-sdk-kinesis usability])
-    OPTIONAL_KINESIS_CFLAGS="${LIBCRYPTO_CFLAGS} ${LIBSSL_CFLAGS} ${LIBCURL_CFLAGS}"
-    OPTIONAL_KINESIS_CXXFLAGS="${AWS_CPP_SDK_KINESIS_CFLAGS} ${AWS_CPP_SDK_CORE_CFLAGS}"
-    OPTIONAL_KINESIS_LIBS="${AWS_CPP_SDK_KINESIS_LIBS} ${AWS_CPP_SDK_CORE_LIBS} \
-                           ${LIBCRYPTO_LIBS} ${LIBSSL_LIBS} ${LIBCURL_LIBS}"
-else
-    enable_exporting_kinesis="no"
-fi
-
-AC_MSG_RESULT([${enable_exporting_kinesis}])
-AM_CONDITIONAL([ENABLE_EXPORTING_KINESIS], [test "${enable_exporting_kinesis}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# Pub/Sub exporting connector - googleapis
-
-PKG_CHECK_MODULES(
-    [GRPC],
-    [grpc],
-    [have_libgrpc=yes],
-    [have_libgrpc=no]
-)
-
-if test "${enable_exporting_pubsub}" != "no"; then
-    PKG_CHECK_MODULES(
-        [PUBSUB],
-        [google_cloud_cpp_pubsub_protos],
-        [have_pubsub_protos=yes],
-        [have_pubsub_protos=no]
-    )
-fi
-
-AC_PATH_PROG([CXX_BINARY], [${CXX}], [no])
-AS_IF(
-    [test x"${CXX_BINARY}" == x"no"],
-    [have_CXX_compiler=no],
-    [have_CXX_compiler=yes]
-)
-
-test "${enable_pubsub}" = "yes" -a "${have_grpc}" != "yes" && \
-    AC_MSG_ERROR([libgrpc required but not found. try installing grpc])
-
-test "${enable_pubsub}" = "yes" -a "${have_pubsub_protos}" != "yes" && \
-    AC_MSG_ERROR([libgoogleapis_cpp_pubsub_protos required but not found. try installing googleapis])
-
-test "${enable_exporting_prometheus_remote_write}" = "yes" -a "${have_CXX_compiler}" != "yes" && \
-    AC_MSG_ERROR([C++ compiler required but not found. try installing g++])
-
-AC_MSG_CHECKING([if pubsub exporting connector should be enabled])
-if test "${enable_exporting_pubsub}" != "no" -a "${have_pubsub_protos}" = "yes" -a "${have_CXX_compiler}" = "yes"; then
-    enable_exporting_pubsub="yes"
-    AC_DEFINE([ENABLE_EXPORTING_PUBSUB], [1], [Pub/Sub API usability])
-    OPTIONAL_PUBSUB_CFLAGS="${GRPC_CFLAGS} ${PUBSUB_CFLAGS}"
-    OPTIONAL_PUBSUB_LIBS="${GRPC_LIBS} ${PUBSUB_LIBS}"
-else
-    enable_pubsub="no"
-fi
-
-AC_MSG_RESULT([${enable_exporting_pubsub}])
-AM_CONDITIONAL([ENABLE_EXPORTING_PUBSUB], [test "${enable_exporting_pubsub}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# Prometheus remote write exporting connector - libprotobuf, libsnappy, protoc
-
-AC_MSG_CHECKING([for snappy::RawCompress in -lsnappy])
-
-    AC_LANG_SAVE
-    AC_LANG_CPLUSPLUS
-    save_LIBS="${LIBS}"
-    LIBS="-lsnappy"
-    save_CXXFLAGS="${CXXFLAGS}"
-    CXXFLAGS="${CXXFLAGS} ${CPP_STD_FLAG}"
-
-    AC_TRY_LINK(
-        [
-            #include <stdlib.h>
-            #include <snappy.h>
-        ],
-        [
-            const char *input = "test";
-            size_t compressed_length;
-            char *buffer = (char *)malloc(5 * sizeof(char));
-            snappy::RawCompress(input, 4, buffer, &compressed_length);
-            free(buffer);
-        ],
-        [
-            have_libsnappy=yes
-            SNAPPY_CFLAGS=""
-            SNAPPY_LIBS="-lsnappy"
-        ],
-        [have_libsnappy=no]
-    )
-
-    LIBS="${save_LIBS}"
-    CXXFLAGS="${save_CXXFLAGS}"
-    AC_LANG_RESTORE
-
-AC_MSG_RESULT([${have_libsnappy}])
-
-test "${enable_exporting_prometheus_remote_write}" = "yes" -a "${have_libprotobuf}" != "yes" && \
-    AC_MSG_ERROR([libprotobuf required but not found. try installing protobuf])
-
-test "${enable_exporting_prometheus_remote_write}" = "yes" -a "${have_libsnappy}" != "yes" && \
-    AC_MSG_ERROR([libsnappy required but not found. try installing snappy])
-
-test "${enable_exporting_prometheus_remote_write}" = "yes" -a "${have_protoc}" != "yes" && \
-    AC_MSG_ERROR([protoc compiler required but not found. try installing protobuf])
-
-test "${enable_exporting_prometheus_remote_write}" = "yes" -a "${have_CXX_compiler}" != "yes" && \
-    AC_MSG_ERROR([C++ compiler required but not found. try installing g++])
-
-AC_MSG_CHECKING([if prometheus remote write exporting connector should be enabled])
-if test "${enable_exporting_prometheus_remote_write}" != "no" -a "${have_libprotobuf}" = "yes" -a "${have_libsnappy}" = "yes" \
-                                                           -a "${have_protoc}" = "yes" -a "${have_CXX_compiler}" = "yes"; then
-    enable_exporting_prometheus_remote_write="yes"
-    AC_DEFINE([ENABLE_PROMETHEUS_REMOTE_WRITE], [1], [Prometheus remote write API usability])
-    OPTIONAL_PROMETHEUS_REMOTE_WRITE_CFLAGS="${SNAPPY_CFLAGS} -I \$(abs_top_srcdir)/exporting/prometheus/remote_write"
-    OPTIONAL_PROMETHEUS_REMOTE_WRITE_LIBS="${SNAPPY_LIBS}"
-    OPTIONAL_PROTOBUF_CFLAGS="${PROTOBUF_CFLAGS}"
-    OPTIONAL_PROTOBUF_LIBS="${PROTOBUF_LIBS}"
-else
-    enable_exporting_prometheus_remote_write="no"
-fi
-
-AC_MSG_RESULT([${enable_exporting_prometheus_remote_write}])
-AM_CONDITIONAL([ENABLE_EXPORTING_PROMETHEUS_REMOTE_WRITE], [test "${enable_exporting_prometheus_remote_write}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# MongoDB exporting connector - libmongoc
-
-PKG_CHECK_MODULES(
-    [LIBMONGOC],
-    [libmongoc-1.0 >= 1.7],
-    [have_libmongoc=yes],
-    [have_libmongoc=no]
-)
-
-test "${enable_exporting_mongodb}" = "yes" -a "${have_libmongoc}" != "yes" && \
-    AC_MSG_ERROR([libmongoc required but not found. Try installing `mongoc`.])
-
-AC_MSG_CHECKING([if mongodb exporting connector should be enabled])
-if test "${enable_exporting_mongodb}" != "no" -a "${have_libmongoc}" = "yes"; then
-    enable_exporting_mongodb="yes"
-    AC_DEFINE([HAVE_MONGOC], [1], [libmongoc usability])
-    OPTIONAL_MONGOC_CFLAGS="${LIBMONGOC_CFLAGS}"
-    OPTIONAL_MONGOC_LIBS="${LIBMONGOC_LIBS}"
-else
-    enable_exporting_mongodb="no"
-fi
-
-AC_MSG_RESULT([${enable_exporting_mongodb}])
-AM_CONDITIONAL([ENABLE_EXPORTING_MONGODB], [test "${enable_exporting_mongodb}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# check for setns() - cgroup-network
-
-AC_CHECK_FUNC([setns])
-AC_MSG_CHECKING([if cgroup-network can be enabled])
-if test "$ac_cv_func_setns" = "yes" ; then
-    have_setns="yes"
-    AC_DEFINE([HAVE_SETNS], [1], [Define 1 if you have setns() function])
-else
-    have_setns="no"
-fi
-AC_MSG_RESULT([${have_setns}])
-AM_CONDITIONAL([ENABLE_PLUGIN_CGROUP_NETWORK], [test "${have_setns}" = "yes"])
-
-
-# -----------------------------------------------------------------------------
-# Link-Time-Optimization
-
-if test "${enable_lto}" != "no"; then
-    opt="-flto"
-    AX_CHECK_COMPILE_FLAG(${opt}, [have_lto=yes], [have_lto=no])
-fi
-if test "${have_lto}" = "yes"; then
-    oCFLAGS="${CFLAGS}"
-    CFLAGS="${CFLAGS} -flto"
-    ac_cv_c_lto_cross_compile="${enable_lto}"
-    test "${ac_cv_c_lto_cross_compile}" != "yes" && ac_cv_c_lto_cross_compile="no"
-    AC_C_LTO
-    CFLAGS="${oCFLAGS}"
-    test "${ac_cv_c_lto}" != "yes" && have_lto="no"
-fi
-test "${enable_lto}" = "yes" -a "${have_lto}" != "yes" && \
-    AC_MSG_ERROR([LTO is required but is not available.])
-AC_MSG_CHECKING([if LTO should be enabled])
-if test "${enable_lto}" != "no" -a "${have_lto}" = "yes"; then
-    enable_lto="yes"
-    OPTIONAL_LTO_CFLAGS="-flto"
-else
-    enable_lto="no"
-fi
-AC_MSG_RESULT([${enable_lto}])
-
-
-# -----------------------------------------------------------------------------
-
-# Try to unconditionally link with -latomic. If the compiler can satisfy
-# all the atomic ops with builtins then, the library will be left unused.
-# Otherwise, some ops will be covered by the compiler's intrinsics and some
-# will be picked up by the linker from -latomic. In the later case, if
-# -latomic is not available there will be a build failure, which would
-# have happened either way before this change.
-AC_LANG_PUSH([C++])
-
-AC_MSG_CHECKING(whether we can use -latomic)
-OLD_LIBS="${LIBS}"
-LIBS="-latomic"
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
-  #include <atomic>
-  #include <cstdint>
-  std::atomic<std::int64_t> v;
-  int main() {
-    return v;
-  }
-]])], CAN_USE_LIBATOMIC=yes, CAN_USE_LIBATOMIC=no)
-LIBS="${OLD_LIBS}"
-AC_MSG_RESULT($CAN_USE_LIBATOMIC)
-
-if test "x$CAN_USE_LIBATOMIC" = xyes; then
-    OPTIONAL_ATOMIC_LIBS="-latomic"
-fi
-AC_SUBST([OPTIONAL_ATOMIC_LIBS])
-
-AC_LANG_POP([C++])
-
-# -----------------------------------------------------------------------------
-
-
-AC_DEFINE_UNQUOTED([NETDATA_USER], ["${with_user}"], [use this user to drop privileged])
-
-varlibdir="${localstatedir}/lib/netdata"
-registrydir="${localstatedir}/lib/netdata/registry"
-cachedir="${localstatedir}/cache/netdata"
-chartsdir="${libexecdir}/netdata/charts.d"
-pythondir="${libexecdir}/netdata/python.d"
-configdir="${sysconfdir}/netdata"
-libconfigdir="${libdir}/netdata/conf.d"
-logdir="${localstatedir}/log/netdata"
-pluginsdir="${libexecdir}/netdata/plugins.d"
-netdata_user="${with_user}"
-libsysdir="${libdir}/netdata/system"
-
-AC_SUBST([varlibdir])
-AC_SUBST([registrydir])
-AC_SUBST([cachedir])
-AC_SUBST([chartsdir])
-AC_SUBST([pythondir])
-AC_SUBST([configdir])
-AC_SUBST([libconfigdir])
-AC_SUBST([logdir])
-AC_SUBST([pluginsdir])
-AC_SUBST([webdir])
-AC_SUBST([netdata_user])
-AC_SUBST([libsysdir])
-
-CFLAGS="${originalCFLAGS} ${OPTIONAL_LTO_CFLAGS} ${OPTIONAL_PROTOBUF_CFLAGS} ${OPTIONAL_MATH_CFLAGS} ${OPTIONAL_NFACCT_CFLAGS} \
-    ${ZLIB_CFLAGS} ${OPTIONAL_UUID_CFLAGS} \
-    ${OPTIONAL_LIBCAP_CFLAGS} ${OPTIONAL_IPMIMONITORING_CFLAGS} ${OPTIONAL_CUPS_CFLAGS} ${OPTIONAL_XENSTAT_FLAGS} \
-    ${OPTIONAL_KINESIS_CFLAGS} ${OPTIONAL_PUBSUB_CFLAGS} ${OPTIONAL_PROMETHEUS_REMOTE_WRITE_CFLAGS} \
-    ${OPTIONAL_MONGOC_CFLAGS} ${LWS_CFLAGS} ${OPTIONAL_JSONC_STATIC_CFLAGS} ${OPTIONAL_YAML_STATIC_CFLAGS} ${OPTIONAL_BPF_CFLAGS} ${JUDY_CFLAGS} \
-    ${OPTIONAL_ACLK_CFLAGS} ${OPTIONAL_ML_CFLAGS} ${OPTIONAL_OS_DEP_CFLAGS} ${H2O_CFLAGS} ${HARDENING_CFLAGS}"
-
-CXXFLAGS="${CFLAGS} ${OPTIONAL_KINESIS_CXXFLAGS} ${CPP_STD_FLAG}"
-
-CPPFLAGS="\
-	-DVARLIB_DIR=\"\\\"${varlibdir}\\\"\" \
-	-DCACHE_DIR=\"\\\"${cachedir}\\\"\" \
-	-DCONFIG_DIR=\"\\\"${configdir}\\\"\" \
-	-DLIBCONFIG_DIR=\"\\\"${libconfigdir}\\\"\" \
-	-DLOG_DIR=\"\\\"${logdir}\\\"\" \
-	-DPLUGINS_DIR=\"\\\"${pluginsdir}\\\"\" \
-	-DRUN_DIR=\"\\\"${localstatedir}/run/netdata\\\"\" \
-	-DWEB_DIR=\"\\\"${webdir}\\\"\" \
-"
-
-AC_SUBST([OPTIONAL_MATH_CFLAGS])
-AC_SUBST([OPTIONAL_MATH_LIBS])
-AC_SUBST([OPTIONAL_DATACHANNEL_LIBS])
-AC_SUBST([OPTIONAL_UV_LIBS])
-AC_SUBST([OPTIONAL_LZ4_LIBS])
-AC_SUBST([OPTIONAL_BROTLIENC_LIBS])
-AC_SUBST([OPTIONAL_BROTLIDEC_LIBS])
-AC_SUBST([OPTIONAL_YAML_LIBS])
-AC_SUBST([OPTIONAL_CURL_LIBS])
-AC_SUBST([OPTIONAL_PCRE2_LIBS])
-AC_SUBST([OPTIONAL_ZSTD_LIBS])
-AC_SUBST([OPTIONAL_SSL_LIBS])
-AC_SUBST([OPTIONAL_JSONC_LIBS])
-AC_SUBST([OPTIONAL_YAML_LIBS])
-AC_SUBST([OPTIONAL_NFACCT_CFLAGS])
-AC_SUBST([OPTIONAL_NFACCT_LIBS])
-AC_SUBST([ZLIB_CFLAGS])
-AC_SUBST([ZLIB_LIBS])
-AC_SUBST([OPTIONAL_UUID_CFLAGS])
-AC_SUBST([OPTIONAL_UUID_LIBS])
-AC_SUBST([OPTIONAL_BPF_CFLAGS])
-AC_SUBST([OPTIONAL_BPF_LIBS])
-AC_SUBST([OPTIONAL_MQTT_LIBS])
-AC_SUBST([OPTIONAL_LIBCAP_CFLAGS])
-AC_SUBST([OPTIONAL_LIBCAP_LIBS])
-AC_SUBST([OPTIONAL_IPMIMONITORING_CFLAGS])
-AC_SUBST([OPTIONAL_IPMIMONITORING_LIBS])
-AC_SUBST([OPTIONAL_CUPS_CFLAGS])
-AC_SUBST([OPTIONAL_CUPS_LIBS])
-AC_SUBST([OPTIONAL_XENSTAT_CFLAGS])
-AC_SUBST([OPTIONAL_XENSTAT_LIBS])
-AC_SUBST([OPTIONAL_KINESIS_CFLAGS])
-AC_SUBST([OPTIONAL_KINESIS_LIBS])
-AC_SUBST([OPTIONAL_PUBSUB_CFLAGS])
-AC_SUBST([OPTIONAL_PUBSUB_LIBS])
-AC_SUBST([OPTIONAL_PROMETHEUS_REMOTE_WRITE_CFLAGS])
-AC_SUBST([OPTIONAL_PROMETHEUS_REMOTE_WRITE_LIBS])
-AC_SUBST([OPTIONAL_MONGOC_CFLAGS])
-AC_SUBST([OPTIONAL_MONGOC_LIBS])
-AC_SUBST([OPTIONAL_LWS_LIBS])
-AC_SUBST([OPTIONAL_ACLK_CFLAGS])
-AC_SUBST([OPTIONAL_PROTOBUF_CFLAGS])
-AC_SUBST([OPTIONAL_PROTOBUF_LIBS])
-AC_SUBST([OPTIONAL_GTEST_CFLAGS])
-AC_SUBST([OPTIONAL_GTEST_LIBS])
-AC_SUBST([OPTIONAL_ML_CFLAGS])
-AC_SUBST([OPTIONAL_ML_LIBS])
-AC_SUBST(OPTIONAL_SYSTEMD_LIBS)
-
-# -----------------------------------------------------------------------------
-# Check if cmocka is available - needed for unit testing
-
-AC_ARG_ENABLE(
-     [unit-tests],
-     [AS_HELP_STRING([--disable-unit-tests],
-                     [Disables building and running the unit tests suite])],
-     [],
-     [enable_unit_tests="yes"]
-)
-
-
-PKG_CHECK_MODULES(
-    [CMOCKA],
-    [cmocka],
-    [have_cmocka="yes"],
-    [AC_MSG_NOTICE([CMocka not found on the system. Unit tests disabled])]
-)
-AM_CONDITIONAL([ENABLE_UNITTESTS], [test "${enable_unit_tests}" = "yes" -a "${have_cmocka}" = "yes" ])
-AC_SUBST([ENABLE_UNITTESTS])
-
-TEST_CFLAGS="${CFLAGS} ${CMOCKA_CFLAGS}"
-TEST_LIBS="${CMOCKA_LIBS}"
-
-AC_SUBST([TEST_CFLAGS])
-AC_SUBST([TEST_LIBS])
-
-# -----------------------------------------------------------------------------
-# save configure options for build info
-
-AC_DEFINE_UNQUOTED(
-    [CONFIGURE_COMMAND],
-    ["$ac_configure_args"],
-    [options passed to configure script]
-)
-
-AC_CONFIG_FILES([
-    Makefile
-    netdata.spec
-    collectors/Makefile
-    collectors/apps.plugin/Makefile
-    collectors/cgroups.plugin/Makefile
-    collectors/charts.d.plugin/Makefile
-    collectors/debugfs.plugin/Makefile
-    collectors/diskspace.plugin/Makefile
-    collectors/timex.plugin/Makefile
-    collectors/ioping.plugin/Makefile
-    collectors/freebsd.plugin/Makefile
-    collectors/freeipmi.plugin/Makefile
-    collectors/cups.plugin/Makefile
-    collectors/log2journal/Makefile
-    collectors/idlejitter.plugin/Makefile
-    collectors/macos.plugin/Makefile
-    collectors/nfacct.plugin/Makefile
-    collectors/plugins.d/Makefile
-    collectors/proc.plugin/Makefile
-    collectors/python.d.plugin/Makefile
-    collectors/slabinfo.plugin/Makefile
-    collectors/statsd.plugin/Makefile
-    collectors/ebpf.plugin/Makefile
-    collectors/tc.plugin/Makefile
-    collectors/xenstat.plugin/Makefile
-    collectors/perf.plugin/Makefile
-    collectors/systemd-journal.plugin/Makefile
-    daemon/Makefile
-    database/Makefile
-    database/contexts/Makefile
-    database/engine/Makefile
-    database/ram/Makefile
-    database/sqlite/Makefile
-    diagrams/Makefile
-    exporting/Makefile
-    exporting/graphite/Makefile
-    exporting/json/Makefile
-    exporting/opentsdb/Makefile
-    exporting/prometheus/Makefile
-    exporting/prometheus/remote_write/Makefile
-    exporting/aws_kinesis/Makefile
-    exporting/pubsub/Makefile
-    exporting/mongodb/Makefile
-    exporting/tests/Makefile
-    health/Makefile
-    health/notifications/Makefile
-    libnetdata/Makefile
-    libnetdata/tests/Makefile
-    libnetdata/adaptive_resortable_list/Makefile
-    libnetdata/aral/Makefile
-    libnetdata/avl/Makefile
-    libnetdata/buffer/Makefile
-    libnetdata/buffered_reader/Makefile
-    libnetdata/clocks/Makefile
-    libnetdata/completion/Makefile
-    libnetdata/config/Makefile
-    libnetdata/datetime/Makefile
-    libnetdata/dictionary/Makefile
-    libnetdata/ebpf/Makefile
-    libnetdata/eval/Makefile
-    libnetdata/facets/Makefile
-    libnetdata/functions_evloop/Makefile
-    libnetdata/july/Makefile
-    libnetdata/line_splitter/Makefile
-    libnetdata/locks/Makefile
-    libnetdata/log/Makefile
-    libnetdata/onewayalloc/Makefile
-    libnetdata/popen/Makefile
-    libnetdata/procfile/Makefile
-    libnetdata/simple_pattern/Makefile
-    libnetdata/socket/Makefile
-    libnetdata/statistical/Makefile
-    libnetdata/string/Makefile
-    libnetdata/storage_number/Makefile
-    libnetdata/storage_number/tests/Makefile
-    libnetdata/threads/Makefile
-    libnetdata/url/Makefile
-    libnetdata/uuid/Makefile
-    libnetdata/json/Makefile
-    libnetdata/health/Makefile
-    libnetdata/worker_utilization/Makefile
-    registry/Makefile
-    streaming/Makefile
-    system/Makefile
-    tests/Makefile
-    web/Makefile
-    web/api/Makefile
-    web/api/badges/Makefile
-    web/api/ilove/Makefile
-    web/api/exporters/Makefile
-    web/api/exporters/shell/Makefile
-    web/api/exporters/prometheus/Makefile
-    web/api/formatters/Makefile
-    web/api/formatters/csv/Makefile
-    web/api/formatters/json/Makefile
-    web/api/formatters/ssv/Makefile
-    web/api/formatters/value/Makefile
-    web/api/queries/Makefile
-    web/api/queries/average/Makefile
-    web/api/queries/countif/Makefile
-    web/api/queries/des/Makefile
-    web/api/queries/incremental_sum/Makefile
-    web/api/queries/max/Makefile
-    web/api/queries/median/Makefile
-    web/api/queries/min/Makefile
-    web/api/queries/percentile/Makefile
-    web/api/queries/ses/Makefile
-    web/api/queries/stddev/Makefile
-    web/api/queries/sum/Makefile
-    web/api/queries/trimmed_mean/Makefile
-    web/api/health/Makefile
-    web/gui/Makefile
-    web/gui/v1/Makefile
-    web/gui/v2/Makefile
-    web/rtc/Makefile
-    web/server/Makefile
-    web/server/static/Makefile
-    claim/Makefile
-    spawn/Makefile
-    logsmanagement/Makefile
-])
-
-AC_OUTPUT
-
-test "${with_math}" != "yes" && AC_MSG_WARN([You are building without math. math allows accurate calculations. It should be enabled.]) || :