configure.ac - external/github.com/openthread/borderrouter - Git at Google

 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.

 #
 #  Copyright (c) 2017, The OpenThread Authors.
 #  All rights reserved.
 #
 #  Redistribution and use in source and binary forms, with or without
 #  modification, are permitted provided that the following conditions are met:
 #  1. Redistributions of source code must retain the above copyright
 #     notice, this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in the
 #     documentation and/or other materials provided with the distribution.
 #  3. Neither the name of the copyright holder nor the
 #     names of its contributors may be used to endorse or promote products
 #     derived from this software without specific prior written permission.
 #
 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 #  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 #  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 #  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 #  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 #  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 #  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 #  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 #  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 #  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 #  POSSIBILITY OF SUCH DAMAGE.
 #

 #
 # Declare autoconf version requirements
 #
 AC_PREREQ([2.68])

 #
 # Initialize autoconf for the package
 #
 AC_INIT([OTBR],
         m4_esyscmd([third_party/openthread/repo/third_party/nlbuild-autotools/repo/scripts/mkversion -b `cat .default-version` .]),
         [openthread-devel@googlegroups.com],
         [otbr],
         [https://github.com/openthread/ot-br-posix])

 # Tell the rest of the build system the absolute path where the
 # nlbuild-autotools repository is rooted at.

 AC_SUBST(nlbuild_autotools_stem,[third_party/openthread/repo/third_party/nlbuild-autotools/repo])
 AC_SUBST(abs_top_nlbuild_autotools_dir,[\${abs_top_srcdir}/\${nlbuild_autotools_stem}])

 #
 # OTBR interface current, revision, and age versions.
 #
 # Maintainters: Please manage these fields as follows:
 #
 #   Interfaces removed:    CURRENT++, AGE = 0, REVISION = 0
 #   Interfaces added:      CURRENT++, AGE++,   REVISION = 0
 #   No interfaces changed:                     REVISION++
 #
 #
 AC_SUBST(LIBOTBR_VERSION_CURRENT,  [0])
 AC_SUBST(LIBOTBR_VERSION_AGE,      [1])
 AC_SUBST(LIBOTBR_VERSION_REVISION, [1])
 AC_SUBST(LIBOTBR_VERSION_INFO,     [${LIBOTBR_VERSION_CURRENT}:${LIBOTBR_VERSION_REVISION}:${LIBOTBR_VERSION_AGE}])

 #
 # Check the sanity of the source directory by checking for the
 # presence of a key watch file
 #
 AC_CONFIG_SRCDIR([src/common/types.hpp])

 #
 # Tell autoconf where to find auxilliary build tools (e.g. config.guess,
 # install-sh, missing, etc.)
 #
 AC_CONFIG_AUX_DIR([third_party/openthread/repo/third_party/nlbuild-autotools/repo/autoconf])

 #
 # Tell autoconf where to find auxilliary M4 macros
 #
 AC_CONFIG_MACRO_DIR([third_party/openthread/repo/third_party/nlbuild-autotools/repo/autoconf/m4])

 #
 # Tell autoconf what file the package is using to aggregate C preprocessor
 # defines.
 #
 AC_CONFIG_HEADERS([include/openthread-br/autoconf-config.h])

 #
 # Figure out what the canonical build, host and target tuples are.
 #
 AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 AC_CANONICAL_TARGET

 #
 # Mac OS X / Darwin ends up putting some versioning cruft on the end of its
 # tuple that we don't care about in this script. Create "clean" variables
 # devoid of it.
 #

 NL_FILTERED_CANONICAL_BUILD
 NL_FILTERED_CANONICAL_HOST
 NL_FILTERED_CANONICAL_TARGET

 #
 # Configure automake with the desired options, indicating that this is not
 # a native GNU package, that we want "silent" build rules, and that we want
 # objects built in the same subdirectory as their source rather than collapsed
 # together at the top-level directory.
 #
 # Disable silent build rules by either passing --disable-silent-rules to
 # configure or passing V=1 to make
 #
 AM_INIT_AUTOMAKE([1.14 foreign silent-rules subdir-objects tar-pax])

 #
 # Silent build rules requires at least automake-1.11. Employ
 # techniques for not breaking earlier versions of automake.
 #
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 AM_SILENT_RULES([yes])

 #
 # Enable maintainer mode to prevent the package from constantly trying
 # to rebuild configure, Makefile.in, etc. Rebuilding such files rarely,
 # if ever, needs to be done "in the field".
 #
 # Use the included 'bootstrap' script instead when necessary.
 #
 AM_MAINTAINER_MODE

 #
 # Checks for build host programs
 #

 # If we are cross-compiling and we are on an embedded target that
 # doesn't support independent, standalone executables, then all
 # compiler tests that attempt to create an executable will fail. In
 # such circumstances, set AC_NO_EXECUTABLES (see http://sourceware.org/
 # ml/newlib/2006/msg00353.html).

 AC_MSG_CHECKING([whether to disable executable checking])
 if test "$cross_compiling" = yes; then
     AC_NO_EXECUTABLES
     AC_MSG_RESULT([yes])
 else
     AC_MSG_RESULT([no])
 fi

 # Passing -Werror to GCC-based or -compatible compilers breaks some
 # autoconf tests (see
 # http://lists.gnu.org/archive/html/autoconf-patches/2008-09/msg00014.html).
 #
 # If -Werror has been passed transform it into -Wno-error. We'll
 # transform it back later with NL_RESTORE_WERROR.

 NL_SAVE_WERROR

 # Check for compilers.
 #
 # These should be checked BEFORE we check for and, implicitly,
 # initialize libtool such that libtool knows what languages it has to
 # work with.

 AC_PROG_CPP
 AC_PROG_CPP_WERROR

 AC_PROG_CC
 AC_PROG_CC_C_O

 AC_PROG_CXXCPP

 AC_PROG_CXX
 AC_PROG_CXX_C_O

 AC_C_BIGENDIAN

 # Check for other compiler toolchain tools.

 AC_CHECK_TOOL(AR, ar)
 AC_CHECK_TOOL(RANLIB, ranlib)
 AC_CHECK_TOOL(OBJCOPY, objcopy)
 AC_CHECK_TOOL(STRIP, strip)

 # Check for other host tools.

 AC_PROG_INSTALL
 AC_PROG_LN_S

 AC_PATH_PROG(CMP, cmp)
 AC_PATH_PROG(PERL, perl)

 #
 # Checks for specific compiler characteristics
 #

 #
 # Common compiler flags we would like to have.
 #
 #   -Wall                        CC, CXX
 #

 PROSPECTIVE_CFLAGS="-Wall -Wextra -Wshadow -Werror -std=c99 -pedantic-errors"
 PROSPECTIVE_CXXFLAGS="-Wall -Wextra -Wshadow -Werror -std=c++11 -Wno-c++14-compat"

 AC_CACHE_CHECK([whether $CC is Clang],
     [nl_cv_clang],
     [nl_cv_clang=no
     if test "x${GCC}" = "xyes"; then
         AC_EGREP_CPP([NL_CC_IS_CLANG],
             [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
 #            if defined(__clang__) && defined(__llvm__)
              NL_CC_IS_CLANG
 #            endif
             ],
             [nl_cv_clang=yes])
     fi
     ])

 if test "${nl_cv_clang}" = "yes"; then
     PROSPECTIVE_CFLAGS="${PROSPECTIVE_CFLAGS} -Wconversion"
     PROSPECTIVE_CXXFLAGS="${PROSPECTIVE_CXXFLAGS} -Wconversion"
 fi

 AX_CHECK_COMPILER_OPTIONS([C],   ${PROSPECTIVE_CFLAGS})
 AX_CHECK_COMPILER_OPTIONS([C++], ${PROSPECTIVE_CXXFLAGS})

 # Check for and initialize libtool

 LT_INIT

 #
 # Debug instances
 #
 AC_MSG_NOTICE([checking whether to build debug instances])

 # Debug

 NL_ENABLE_DEBUG([no])

 AM_CONDITIONAL([OTBR_BUILD_DEBUG], [test "${nl_cv_build_debug}" = "yes"])

 #
 # Code coverage and compiler optimization
 #

 # Coverage

 NL_ENABLE_COVERAGE([no])

 AM_CONDITIONAL([OTBR_BUILD_COVERAGE], [test "${nl_cv_build_coverage}" = "yes"])

 NL_ENABLE_COVERAGE_REPORTS([auto])

 AM_CONDITIONAL([OTBR_BUILD_COVERAGE_REPORTS], [test "${nl_cv_build_coverage_reports}" = "yes"])

 # Optimization

 NL_ENABLE_OPTIMIZATION([yes])

 AM_CONDITIONAL([OTBR_BUILD_OPTIMIZED], [test "${nl_cv_build_optimized}" = "yes"])

 #
 # Tests
 #
 AC_MSG_NOTICE([checking whether to build tests])

 # Tests

 NL_ENABLE_TESTS([yes])

 AM_CONDITIONAL([OTBR_BUILD_TESTS], [test "${nl_cv_build_tests}" = "yes"])

 #
 # Documentation
 #

 # Determine whether or not documentation (via Doxygen) should be built
 # or not, with 'auto' as the default and establish a default support
 # value for GraphViz 'dot' support.

 NL_ENABLE_DOCS([auto],[NO])

 AM_CONDITIONAL(OTBR_BUILD_DOCS, [test "${nl_cv_build_docs}" = "yes"])

 #
 # Commissioner
 #

 AC_ARG_ENABLE(commissioner,
     [AS_HELP_STRING([--enable-commissioner],[Enable commissioner @<:@default=yes@:>@.])],
     [
         case "${enableval}" in

         no|yes)
             enable_commissioner=${enableval}
             ;;

         *)
             AC_MSG_ERROR([Invalid value ${enable_commissioner} for --enable-commissioner])
             ;;
         esac
     ],
     [enable_commissioner=yes])

 if test "$enable_commissioner" = "yes"; then
     OTBR_ENABLE_COMMISSIONER=1
 else
     OTBR_ENABLE_COMMISSIONER=0
 fi

 AC_MSG_RESULT(${enable_commissioner})
 AC_SUBST(OTBR_ENABLE_COMMISSIONER)
 AM_CONDITIONAL([OTBR_ENABLE_COMMISSIONER], [test "${enable_commissioner}" = "yes"])

 #
 # DBus server
 #
 AC_ARG_ENABLE(dbus-server,
     [AS_HELP_STRING([--enable-dbus-server],[Enable DBus server @<:@default=no@:>@.])],
     [
         case "${enableval}" in
         no|yes)
             enable_dbus_server=${enableval}
             ;;
         *)
             AC_MSG_ERROR([Invalid value ${enable_dbus_server} for --enable-dbus-server])
             ;;
         esac
     ],
     [enable_dbus_server=no])

 if test "$enable_dbus_server" = "yes"; then
     AC_DEFINE_UNQUOTED([OTBR_ENABLE_DBUS_SERVER], [1], [Define to 1 if you want otbr-agent to provide dbus server])
 fi

 AC_MSG_RESULT(${enable_dbus_server})
 AM_CONDITIONAL([OTBR_ENABLE_DBUS_SERVER], [test "${enable_dbus_server}" = "yes"])

 #
 # Web Service
 #

 AC_ARG_ENABLE(web-service,
     [AS_HELP_STRING([--enable-web-service],[Enable web service @<:@default=yes@:>@.])],
     [
         case "${enableval}" in

         no|yes)
             enable_web_service=${enableval}
             ;;

         *)
             AC_MSG_ERROR([Invalid value ${enable_web_service} for --enable-web-service])
             ;;
         esac
     ],
     [enable_web_service=yes])

 if test "$enable_web_service" = "yes"; then
     OTBR_ENABLE_WEB_SERVICE=1
 else
     OTBR_ENABLE_WEB_SERVICE=0
 fi

 AC_MSG_RESULT(${enable_web_service})
 AC_SUBST(OTBR_ENABLE_WEB_SERVICE)
 AM_CONDITIONAL([OTBR_ENABLE_WEB_SERVICE], [test "${enable_web_service}" = "yes"])

 #
 # OpenWRT
 #

 AC_ARG_ENABLE(openwrt,
     [AS_HELP_STRING([--enable-openwrt],[Enable OpenWRT @<:@default=no@:>@.])],
     [
         case "${enableval}" in

         no|yes)
             enable_openwrt=${enableval}
             ;;

         *)
             AC_MSG_ERROR([Invalid value ${enable_openwrt} for --enable-openwrt])
             ;;
         esac
     ],
     [enable_openwrt=no])

 if test "$enable_openwrt" = "yes"; then
     OTBR_ENABLE_OPENWRT=1
     AC_DEFINE_UNQUOTED([OTBR_ENABLE_OPENWRT], [1], [Define to 1 if you want to compile for OpenWRT])
 else
     OTBR_ENABLE_OPENWRT=0
 fi

 AC_MSG_RESULT(${enable_openwrt})
 AC_SUBST(OTBR_ENABLE_OPENWRT)
 AM_CONDITIONAL([OTBR_ENABLE_OPENWRT], [test "${enable_openwrt}" = "yes"])

 #
 # Checks for libraries and packages.
 #
 # At minimum, the following packages are optional, depending on
 # configuration:
 #
 #   * TBD
 #
 AC_MSG_NOTICE([checking required package dependencies])

 # NL_WITH_PACKAGE(...)

 AC_ARG_WITH(ncp,
   AC_HELP_STRING([--with-ncp=NCP_TYPE], [specify the type of NCP implementation: wpantund, openthread @<:@default=wpantund@:>@.]),
   [with_ncp=${withval}],
   [with_ncp=wpantund]
 )

 case "${with_ncp}" in
 openthread)
   AC_DEFINE_UNQUOTED([OTBR_ENABLE_NCP_OPENTHREAD], [1], [Define to 1 if you want to choose wpantund to manage NCP])
   ;;
 wpantund)
   AC_DEFINE_UNQUOTED([OTBR_ENABLE_NCP_WPANTUND], [1], [Define to 1 if you want to choose openthread to manage NCP])
   ;;
 *)
   AC_MSG_ERROR([Invalid value ${with_ncp} for --with-ncp])
 esac

 AM_CONDITIONAL([OTBR_ENABLE_NCP_OPENTHREAD], [test "${with_ncp}" = "openthread"])
 AM_CONDITIONAL([OTBR_ENABLE_NCP_WPANTUND], [test "${with_ncp}" = "wpantund"])

 AC_ARG_WITH(mdns,
   AC_HELP_STRING([--with-mdns=MDNS_TYPE], [specify the type of mdns implementation: avahi, mDNSResponder, none @<:@default=avahi@:>@.]),
   [with_mdns=${withval}],
   [with_mdns=avahi]
 )

 case "${with_mdns}" in
 avahi)
   AC_DEFINE_UNQUOTED([OTBR_ENABLE_MDNS_AVAHI], [1], [Define to 1 if you want to choose avahi to provide mdns])
   ;;
 mDNSResponder)
   AC_DEFINE_UNQUOTED([OTBR_ENABLE_MDNS_MDNSSD], [1], [Define to 1 if you want to choose mDNSResponder to provide mdns])
   ;;
 none)
   ;;
 *)
   AC_MSG_ERROR([Invalid value ${with_mdns} for --with-mdns])
 esac
 AM_CONDITIONAL([OTBR_ENABLE_MDNS_AVAHI], [test "${with_mdns}" = "avahi"])
 AM_CONDITIONAL([OTBR_ENABLE_MDNS_MDNSSD], [test "${with_mdns}" = "mDNSResponder"])

 # Check if ctags is present.

 AC_MSG_CHECKING([checking if Exuberant Ctags is available])
 AC_PATH_PROGS_FEATURE_CHECK([CTAGS], [ctags],
                             [$ac_path_CTAGS --version | grep -q Exuberant &&
                              ac_cv_path_CTAGS=$ac_path_CTAGS],
                             [
                                 if test "$enable_commissioner" = "yes"; then
                                     AC_MSG_ERROR([could not find ctags])
                                 fi
                             ])
 AC_MSG_RESULT([$ac_cv_path_CTAGS])

 # Check if the DBus module

 if test "${with_mdns}" == "avahi" -o "${with_ncp}" == "wpantund" -o "${enable_dbus_server}" == "yes"; then
   PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.4], , [AC_MSG_ERROR([could not find dbus(>= 1.4)])])
 fi
 AC_SUBST(DBUS_CFLAGS)
 AC_SUBST(DBUS_LIBS)

 AC_ARG_WITH(dbusconfdir,
   AC_HELP_STRING([--with-dbusconfdir=PATH], [path to D-Bus config directory]),
   [path_dbusconf=${withval}],
   [
     if test "$prefix" = "`$PKG_CONFIG --variable=prefix dbus-1`"
     then path_dbusconf="`$PKG_CONFIG --variable=sysconfdir dbus-1`"
     fi
   ]
 )
 if (test -z "${path_dbusconf}"); then
   if test "${prefix}" = "/usr/local" && test "${sysconfdir}" = '${prefix}/etc' && test -d /etc/dbus-1/system.d
   then DBUS_CONFDIR='/etc/dbus-1/system.d'
   else DBUS_CONFDIR='${sysconfdir}/dbus-1/system.d'
   fi
 else
   [path_dbusconf="$(echo ${path_dbusconf} | sed 's:^'"${prefix}"':${prefix}:')" ; ]
   [path_dbusconf="$(echo ${path_dbusconf} | sed 's:^'"${sysconfdir}"':${sysconfdir}:')" ; ]
   DBUS_CONFDIR="${path_dbusconf}/dbus-1/system.d"
 fi
 AC_SUBST(DBUS_CONFDIR)

 AC_ARG_WITH(dbusdatadir, AC_HELP_STRING([--with-dbusdatadir=PATH],
   [path to D-Bus data directory]), [path_dbusdata=${withval}],
   [
     if test "$prefix" = "`$PKG_CONFIG --variable=prefix dbus-1`"
     then path_dbusdata="`$PKG_CONFIG --variable=datadir dbus-1`"
     fi
   ]
 )
 if (test -z "${path_dbusdata}"); then
   DBUS_DATADIR='${datadir}/dbus-1/system-services'
 else
   [path_dbusconf="$(echo ${path_dbusdata} | sed 's:^'"${prefix}"':${prefix}:')" ; ]
   [path_dbusconf="$(echo ${path_dbusdata} | sed 's:^'"${datadir}"':${datadir}:')" ; ]
   DBUS_DATADIR="${path_dbusdata}/dbus-1/system-services"
 fi
 AC_SUBST(DBUS_DATADIR)

 #
 # Check for headers
 #
 AC_HEADER_STDBOOL
 AC_HEADER_STDC

 AC_DEFUN([OTBR_REQUIRE_HEADER],
          [AC_CHECK_HEADER([$1], , [AC_MSG_ERROR([could not find $1])])])

 OTBR_REQUIRE_HEADER([stdint.h])
 OTBR_REQUIRE_HEADER([string.h])

 #
 # Check for types and structures
 #
 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

 #
 # Checks for library functions
 #

 if test "${ac_no_link}" != "yes"; then
     AC_CHECK_FUNCS([memcpy])
 fi

 # Add any code coverage CPPFLAGS and LDFLAGS

 CPPFLAGS="${CPPFLAGS} ${NL_COVERAGE_CPPFLAGS}"
 LIBS="${LIBS} ${NL_COVERAGE_LIBS}"
 LDFLAGS="${LDFLAGS} ${NL_COVERAGE_LDFLAGS}"

 # At this point, we can restore the compiler flags to whatever the
 # user passed in, now that we're clear of an -Werror issues by
 # transforming -Wno-error back to -Werror.

 NL_RESTORE_WERROR

 #
 # Agent user
 #

 AC_ARG_WITH(
     [agent-user],
     [AS_HELP_STRING([--with-agent-user=<USER>],[Specify the user to run otbr-agent service @<:@default=root@:>@.])],
     [
 	    OTBR_AGENT_USER="${withval}"
     ],
     [
 	    OTBR_AGENT_USER=root
     ])

 AC_MSG_CHECKING([Agent user])
 AC_MSG_RESULT(${OTBR_AGENT_USER})
 AC_SUBST(OTBR_AGENT_USER)
 AC_DEFINE_UNQUOTED([OTBR_AGENT_USER],[${OTBR_AGENT_USER}],[Define the user to run otbr-agent service])

 #
 # systemd
 #

 AC_ARG_WITH([systemdsystemunitdir],
             AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Path to install systemd unit files.]),
             [], [with_systemdsystemunitdir=${prefix}$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
 if test -n "${with_systemdsystemunitdir}"; then
   AC_SUBST([systemdsystemunitdir], [${with_systemdsystemunitdir}])
 fi
 AM_CONDITIONAL(HAVE_SYSTEMD, [test -n "${with_systemdsystemunitdir}"])

 #
 # Identify the various makefiles and auto-generated files for the package
 #
 AC_CONFIG_FILES([
 Makefile
 third_party/Makefile
 third_party/Simple-web-server/Makefile
 third_party/libcoap/Makefile
 third_party/openthread/Makefile
 third_party/wpantund/Makefile
 third_party/mdl/Makefile
 third_party/angular/Makefile
 third_party/angular-material/Makefile
 include/Makefile
 src/Makefile
 src/agent/Makefile
 src/agent/otbr-agent.conf
 src/commissioner/Makefile
 src/common/Makefile
 src/dbus/Makefile
 src/dbus/client/Makefile
 src/dbus/common/Makefile
 src/dbus/server/Makefile
 src/utils/Makefile
 src/web/Makefile
 tests/Makefile
 tests/dbus/Makefile
 tests/mdns/Makefile
 tests/tools/Makefile
 tests/unit/Makefile
 tools/Makefile
 doc/Makefile
 ])

 if test "$enable_commissioner" = "yes"; then
     ac_configure_args="$ac_configure_args --disable-examples --disable-documentation"
     AC_CONFIG_SUBDIRS([third_party/libcoap/repo])
 fi

 #
 # Generate the auto-generated files for the package
 #
 AC_OUTPUT

 #
 # Summarize the package configuration
 #

 AC_MSG_NOTICE([

   Configuration Summary
   ---------------------
   Package                                   : ${PACKAGE_NAME}
   Version                                   : ${PACKAGE_VERSION}
   Interface                                 : ${LIBOTBR_VERSION_INFO//:/.}
   Build system                              : ${build}
   Host system                               : ${host}
   Target system                             : ${target}
   Target architecture                       : ${target_cpu}
   Target OS                                 : ${target_os}
   Cross compiling                           : ${cross_compiling}
   Build shared libraries                    : ${enable_shared}
   Build static libraries                    : ${enable_static}
   Build debug libraries                     : ${nl_cv_build_debug}
   Build optimized libraries                 : ${nl_cv_build_optimized}
   Build coverage libraries                  : ${nl_cv_build_coverage}
   Build coverage reports                    : ${nl_cv_build_coverage_reports}
   MDNS implementation                       : ${with_mdns}
   Commissioner                              : ${enable_commissioner}
   Web service                               : ${enable_web_service}
   OpenWRT                                   : ${enable_openwrt}
   Lcov                                      : ${LCOV:--}
   Genhtml                                   : ${GENHTML:--}
   Build tests                               : ${nl_cv_build_tests}
   Prefix                                    : ${prefix}
   Shadow directory program                  : ${LNDIR}
   Documentation support                     : ${nl_cv_build_docs}
   Doxygen                                   : ${DOXYGEN:--}
   GraphViz dot                              : ${DOT:--}
   PERL                                      : ${PERL:--}
   C Preprocessor                            : ${CPP}
   C Compiler                                : ${CC}
   C++ Preprocessor                          : ${CXXCPP}
   C++ Compiler                              : ${CXX}
   Archiver                                  : ${AR}
   Archive Indexer                           : ${RANLIB}
   Symbol Stripper                           : ${STRIP}
   Object Copier                             : ${OBJCOPY}
   C Preprocessor flags                      : ${CPPFLAGS:--}
   C Compile flags                           : ${CFLAGS:--}
   C++ Compile flags                         : ${CXXFLAGS:--}
   Link flags                                : ${LDFLAGS:--}
   Link libraries                            : ${LIBS}

 ])
	# -- Autoconf --
	# Process this file with autoconf to produce a configure script.

	#
	# Copyright (c) 2017, The OpenThread Authors.
	# All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions are met:
	# 1. Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# 2. Redistributions in binary form must reproduce the above copyright
	# notice, this list of conditions and the following disclaimer in the
	# documentation and/or other materials provided with the distribution.
	# 3. Neither the name of the copyright holder nor the
	# names of its contributors may be used to endorse or promote products
	# derived from this software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
	# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	# POSSIBILITY OF SUCH DAMAGE.
	#

	#
	# Declare autoconf version requirements
	#
	AC_PREREQ([2.68])

	#
	# Initialize autoconf for the package
	#
	AC_INIT([OTBR],
	m4_esyscmd([third_party/openthread/repo/third_party/nlbuild-autotools/repo/scripts/mkversion -b `cat .default-version` .]),
	[openthread-devel@googlegroups.com],
	[otbr],
	[https://github.com/openthread/ot-br-posix])

	# Tell the rest of the build system the absolute path where the
	# nlbuild-autotools repository is rooted at.

	AC_SUBST(nlbuild_autotools_stem,[third_party/openthread/repo/third_party/nlbuild-autotools/repo])
	AC_SUBST(abs_top_nlbuild_autotools_dir,[\${abs_top_srcdir}/\${nlbuild_autotools_stem}])

	#
	# OTBR interface current, revision, and age versions.
	#
	# Maintainters: Please manage these fields as follows:
	#
	# Interfaces removed: CURRENT++, AGE = 0, REVISION = 0
	# Interfaces added: CURRENT++, AGE++, REVISION = 0
	# No interfaces changed: REVISION++
	#
	#
	AC_SUBST(LIBOTBR_VERSION_CURRENT, [0])
	AC_SUBST(LIBOTBR_VERSION_AGE, [1])
	AC_SUBST(LIBOTBR_VERSION_REVISION, [1])
	AC_SUBST(LIBOTBR_VERSION_INFO, [${LIBOTBR_VERSION_CURRENT}:${LIBOTBR_VERSION_REVISION}:${LIBOTBR_VERSION_AGE}])

	#
	# Check the sanity of the source directory by checking for the
	# presence of a key watch file
	#
	AC_CONFIG_SRCDIR([src/common/types.hpp])

	#
	# Tell autoconf where to find auxilliary build tools (e.g. config.guess,
	# install-sh, missing, etc.)
	#
	AC_CONFIG_AUX_DIR([third_party/openthread/repo/third_party/nlbuild-autotools/repo/autoconf])

	#
	# Tell autoconf where to find auxilliary M4 macros
	#
	AC_CONFIG_MACRO_DIR([third_party/openthread/repo/third_party/nlbuild-autotools/repo/autoconf/m4])

	#
	# Tell autoconf what file the package is using to aggregate C preprocessor
	# defines.
	#
	AC_CONFIG_HEADERS([include/openthread-br/autoconf-config.h])

	#
	# Figure out what the canonical build, host and target tuples are.
	#
	AC_CANONICAL_BUILD
	AC_CANONICAL_HOST
	AC_CANONICAL_TARGET

	#
	# Mac OS X / Darwin ends up putting some versioning cruft on the end of its
	# tuple that we don't care about in this script. Create "clean" variables
	# devoid of it.
	#

	NL_FILTERED_CANONICAL_BUILD
	NL_FILTERED_CANONICAL_HOST
	NL_FILTERED_CANONICAL_TARGET

	#
	# Configure automake with the desired options, indicating that this is not
	# a native GNU package, that we want "silent" build rules, and that we want
	# objects built in the same subdirectory as their source rather than collapsed
	# together at the top-level directory.
	#
	# Disable silent build rules by either passing --disable-silent-rules to
	# configure or passing V=1 to make
	#
	AM_INIT_AUTOMAKE([1.14 foreign silent-rules subdir-objects tar-pax])

	#
	# Silent build rules requires at least automake-1.11. Employ
	# techniques for not breaking earlier versions of automake.
	#
	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
	AM_SILENT_RULES([yes])

	#
	# Enable maintainer mode to prevent the package from constantly trying
	# to rebuild configure, Makefile.in, etc. Rebuilding such files rarely,
	# if ever, needs to be done "in the field".
	#
	# Use the included 'bootstrap' script instead when necessary.
	#
	AM_MAINTAINER_MODE

	#
	# Checks for build host programs
	#

	# If we are cross-compiling and we are on an embedded target that
	# doesn't support independent, standalone executables, then all
	# compiler tests that attempt to create an executable will fail. In
	# such circumstances, set AC_NO_EXECUTABLES (see http://sourceware.org/
	# ml/newlib/2006/msg00353.html).

	AC_MSG_CHECKING([whether to disable executable checking])
	if test "$cross_compiling" = yes; then
	AC_NO_EXECUTABLES
	AC_MSG_RESULT([yes])
	else
	AC_MSG_RESULT([no])
	fi

	# Passing -Werror to GCC-based or -compatible compilers breaks some
	# autoconf tests (see
	# http://lists.gnu.org/archive/html/autoconf-patches/2008-09/msg00014.html).
	#
	# If -Werror has been passed transform it into -Wno-error. We'll
	# transform it back later with NL_RESTORE_WERROR.

	NL_SAVE_WERROR

	# Check for compilers.
	#
	# These should be checked BEFORE we check for and, implicitly,
	# initialize libtool such that libtool knows what languages it has to
	# work with.

	AC_PROG_CPP
	AC_PROG_CPP_WERROR

	AC_PROG_CC
	AC_PROG_CC_C_O

	AC_PROG_CXXCPP

	AC_PROG_CXX
	AC_PROG_CXX_C_O

	AC_C_BIGENDIAN

	# Check for other compiler toolchain tools.

	AC_CHECK_TOOL(AR, ar)
	AC_CHECK_TOOL(RANLIB, ranlib)
	AC_CHECK_TOOL(OBJCOPY, objcopy)
	AC_CHECK_TOOL(STRIP, strip)

	# Check for other host tools.

	AC_PROG_INSTALL
	AC_PROG_LN_S

	AC_PATH_PROG(CMP, cmp)
	AC_PATH_PROG(PERL, perl)

	#
	# Checks for specific compiler characteristics
	#

	#
	# Common compiler flags we would like to have.
	#
	# -Wall CC, CXX
	#

	PROSPECTIVE_CFLAGS="-Wall -Wextra -Wshadow -Werror -std=c99 -pedantic-errors"
	PROSPECTIVE_CXXFLAGS="-Wall -Wextra -Wshadow -Werror -std=c++11 -Wno-c++14-compat"

	AC_CACHE_CHECK([whether $CC is Clang],
	[nl_cv_clang],
	[nl_cv_clang=no
	if test "x${GCC}" = "xyes"; then
	AC_EGREP_CPP([NL_CC_IS_CLANG],
	[/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
	# if defined(__clang__) && defined(__llvm__)
	NL_CC_IS_CLANG
	# endif
	],
	[nl_cv_clang=yes])
	fi
	])

	if test "${nl_cv_clang}" = "yes"; then
	PROSPECTIVE_CFLAGS="${PROSPECTIVE_CFLAGS} -Wconversion"
	PROSPECTIVE_CXXFLAGS="${PROSPECTIVE_CXXFLAGS} -Wconversion"
	fi

	AX_CHECK_COMPILER_OPTIONS([C], ${PROSPECTIVE_CFLAGS})
	AX_CHECK_COMPILER_OPTIONS([C++], ${PROSPECTIVE_CXXFLAGS})

	# Check for and initialize libtool

	LT_INIT

	#
	# Debug instances
	#
	AC_MSG_NOTICE([checking whether to build debug instances])

	# Debug

	NL_ENABLE_DEBUG([no])

	AM_CONDITIONAL([OTBR_BUILD_DEBUG], [test "${nl_cv_build_debug}" = "yes"])

	#
	# Code coverage and compiler optimization
	#

	# Coverage

	NL_ENABLE_COVERAGE([no])

	AM_CONDITIONAL([OTBR_BUILD_COVERAGE], [test "${nl_cv_build_coverage}" = "yes"])

	NL_ENABLE_COVERAGE_REPORTS([auto])

	AM_CONDITIONAL([OTBR_BUILD_COVERAGE_REPORTS], [test "${nl_cv_build_coverage_reports}" = "yes"])

	# Optimization

	NL_ENABLE_OPTIMIZATION([yes])

	AM_CONDITIONAL([OTBR_BUILD_OPTIMIZED], [test "${nl_cv_build_optimized}" = "yes"])

	#
	# Tests
	#
	AC_MSG_NOTICE([checking whether to build tests])

	# Tests

	NL_ENABLE_TESTS([yes])

	AM_CONDITIONAL([OTBR_BUILD_TESTS], [test "${nl_cv_build_tests}" = "yes"])

	#
	# Documentation
	#

	# Determine whether or not documentation (via Doxygen) should be built
	# or not, with 'auto' as the default and establish a default support
	# value for GraphViz 'dot' support.

	NL_ENABLE_DOCS([auto],[NO])

	AM_CONDITIONAL(OTBR_BUILD_DOCS, [test "${nl_cv_build_docs}" = "yes"])

	#
	# Commissioner
	#

	AC_ARG_ENABLE(commissioner,
	[AS_HELP_STRING([--enable-commissioner],[Enable commissioner @<:@default=yes@:>@.])],
	[
	case "${enableval}" in

	no\|yes)
	enable_commissioner=${enableval}
	;;

	*)
	AC_MSG_ERROR([Invalid value ${enable_commissioner} for --enable-commissioner])
	;;
	esac
	],
	[enable_commissioner=yes])

	if test "$enable_commissioner" = "yes"; then
	OTBR_ENABLE_COMMISSIONER=1
	else
	OTBR_ENABLE_COMMISSIONER=0
	fi

	AC_MSG_RESULT(${enable_commissioner})
	AC_SUBST(OTBR_ENABLE_COMMISSIONER)
	AM_CONDITIONAL([OTBR_ENABLE_COMMISSIONER], [test "${enable_commissioner}" = "yes"])

	#
	# DBus server
	#
	AC_ARG_ENABLE(dbus-server,
	[AS_HELP_STRING([--enable-dbus-server],[Enable DBus server @<:@default=no@:>@.])],
	[
	case "${enableval}" in
	no\|yes)
	enable_dbus_server=${enableval}
	;;
	*)
	AC_MSG_ERROR([Invalid value ${enable_dbus_server} for --enable-dbus-server])
	;;
	esac
	],
	[enable_dbus_server=no])

	if test "$enable_dbus_server" = "yes"; then
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_DBUS_SERVER], [1], [Define to 1 if you want otbr-agent to provide dbus server])
	fi

	AC_MSG_RESULT(${enable_dbus_server})
	AM_CONDITIONAL([OTBR_ENABLE_DBUS_SERVER], [test "${enable_dbus_server}" = "yes"])

	#
	# Web Service
	#

	AC_ARG_ENABLE(web-service,
	[AS_HELP_STRING([--enable-web-service],[Enable web service @<:@default=yes@:>@.])],
	[
	case "${enableval}" in

	no\|yes)
	enable_web_service=${enableval}
	;;

	*)
	AC_MSG_ERROR([Invalid value ${enable_web_service} for --enable-web-service])
	;;
	esac
	],
	[enable_web_service=yes])

	if test "$enable_web_service" = "yes"; then
	OTBR_ENABLE_WEB_SERVICE=1
	else
	OTBR_ENABLE_WEB_SERVICE=0
	fi

	AC_MSG_RESULT(${enable_web_service})
	AC_SUBST(OTBR_ENABLE_WEB_SERVICE)
	AM_CONDITIONAL([OTBR_ENABLE_WEB_SERVICE], [test "${enable_web_service}" = "yes"])

	#
	# OpenWRT
	#

	AC_ARG_ENABLE(openwrt,
	[AS_HELP_STRING([--enable-openwrt],[Enable OpenWRT @<:@default=no@:>@.])],
	[
	case "${enableval}" in

	no\|yes)
	enable_openwrt=${enableval}
	;;

	*)
	AC_MSG_ERROR([Invalid value ${enable_openwrt} for --enable-openwrt])
	;;
	esac
	],
	[enable_openwrt=no])

	if test "$enable_openwrt" = "yes"; then
	OTBR_ENABLE_OPENWRT=1
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_OPENWRT], [1], [Define to 1 if you want to compile for OpenWRT])
	else
	OTBR_ENABLE_OPENWRT=0
	fi

	AC_MSG_RESULT(${enable_openwrt})
	AC_SUBST(OTBR_ENABLE_OPENWRT)
	AM_CONDITIONAL([OTBR_ENABLE_OPENWRT], [test "${enable_openwrt}" = "yes"])

	#
	# Checks for libraries and packages.
	#
	# At minimum, the following packages are optional, depending on
	# configuration:
	#
	# * TBD
	#
	AC_MSG_NOTICE([checking required package dependencies])

	# NL_WITH_PACKAGE(...)

	AC_ARG_WITH(ncp,
	AC_HELP_STRING([--with-ncp=NCP_TYPE], [specify the type of NCP implementation: wpantund, openthread @<:@default=wpantund@:>@.]),
	[with_ncp=${withval}],
	[with_ncp=wpantund]
	)

	case "${with_ncp}" in
	openthread)
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_NCP_OPENTHREAD], [1], [Define to 1 if you want to choose wpantund to manage NCP])
	;;
	wpantund)
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_NCP_WPANTUND], [1], [Define to 1 if you want to choose openthread to manage NCP])
	;;
	*)
	AC_MSG_ERROR([Invalid value ${with_ncp} for --with-ncp])
	esac

	AM_CONDITIONAL([OTBR_ENABLE_NCP_OPENTHREAD], [test "${with_ncp}" = "openthread"])
	AM_CONDITIONAL([OTBR_ENABLE_NCP_WPANTUND], [test "${with_ncp}" = "wpantund"])

	AC_ARG_WITH(mdns,
	AC_HELP_STRING([--with-mdns=MDNS_TYPE], [specify the type of mdns implementation: avahi, mDNSResponder, none @<:@default=avahi@:>@.]),
	[with_mdns=${withval}],
	[with_mdns=avahi]
	)

	case "${with_mdns}" in
	avahi)
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_MDNS_AVAHI], [1], [Define to 1 if you want to choose avahi to provide mdns])
	;;
	mDNSResponder)
	AC_DEFINE_UNQUOTED([OTBR_ENABLE_MDNS_MDNSSD], [1], [Define to 1 if you want to choose mDNSResponder to provide mdns])
	;;
	none)
	;;
	*)
	AC_MSG_ERROR([Invalid value ${with_mdns} for --with-mdns])
	esac
	AM_CONDITIONAL([OTBR_ENABLE_MDNS_AVAHI], [test "${with_mdns}" = "avahi"])
	AM_CONDITIONAL([OTBR_ENABLE_MDNS_MDNSSD], [test "${with_mdns}" = "mDNSResponder"])

	# Check if ctags is present.

	AC_MSG_CHECKING([checking if Exuberant Ctags is available])
	AC_PATH_PROGS_FEATURE_CHECK([CTAGS], [ctags],
	[$ac_path_CTAGS --version \| grep -q Exuberant &&
	ac_cv_path_CTAGS=$ac_path_CTAGS],
	[
	if test "$enable_commissioner" = "yes"; then
	AC_MSG_ERROR([could not find ctags])
	fi
	])
	AC_MSG_RESULT([$ac_cv_path_CTAGS])

	# Check if the DBus module

	if test "${with_mdns}" == "avahi" -o "${with_ncp}" == "wpantund" -o "${enable_dbus_server}" == "yes"; then
	PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.4], , [AC_MSG_ERROR([could not find dbus(>= 1.4)])])
	fi
	AC_SUBST(DBUS_CFLAGS)
	AC_SUBST(DBUS_LIBS)

	AC_ARG_WITH(dbusconfdir,
	AC_HELP_STRING([--with-dbusconfdir=PATH], [path to D-Bus config directory]),
	[path_dbusconf=${withval}],
	[
	if test "$prefix" = "`$PKG_CONFIG --variable=prefix dbus-1`"
	then path_dbusconf="`$PKG_CONFIG --variable=sysconfdir dbus-1`"
	fi
	]
	)
	if (test -z "${path_dbusconf}"); then
	if test "${prefix}" = "/usr/local" && test "${sysconfdir}" = '${prefix}/etc' && test -d /etc/dbus-1/system.d
	then DBUS_CONFDIR='/etc/dbus-1/system.d'
	else DBUS_CONFDIR='${sysconfdir}/dbus-1/system.d'
	fi
	else
	[path_dbusconf="$(echo ${path_dbusconf} \| sed 's:^'"${prefix}"':${prefix}:')" ; ]
	[path_dbusconf="$(echo ${path_dbusconf} \| sed 's:^'"${sysconfdir}"':${sysconfdir}:')" ; ]
	DBUS_CONFDIR="${path_dbusconf}/dbus-1/system.d"
	fi
	AC_SUBST(DBUS_CONFDIR)

	AC_ARG_WITH(dbusdatadir, AC_HELP_STRING([--with-dbusdatadir=PATH],
	[path to D-Bus data directory]), [path_dbusdata=${withval}],
	[
	if test "$prefix" = "`$PKG_CONFIG --variable=prefix dbus-1`"
	then path_dbusdata="`$PKG_CONFIG --variable=datadir dbus-1`"
	fi
	]
	)
	if (test -z "${path_dbusdata}"); then
	DBUS_DATADIR='${datadir}/dbus-1/system-services'
	else
	[path_dbusconf="$(echo ${path_dbusdata} \| sed 's:^'"${prefix}"':${prefix}:')" ; ]
	[path_dbusconf="$(echo ${path_dbusdata} \| sed 's:^'"${datadir}"':${datadir}:')" ; ]
	DBUS_DATADIR="${path_dbusdata}/dbus-1/system-services"
	fi
	AC_SUBST(DBUS_DATADIR)

	#
	# Check for headers
	#
	AC_HEADER_STDBOOL
	AC_HEADER_STDC

	AC_DEFUN([OTBR_REQUIRE_HEADER],
	[AC_CHECK_HEADER([$1], , [AC_MSG_ERROR([could not find $1])])])

	OTBR_REQUIRE_HEADER([stdint.h])
	OTBR_REQUIRE_HEADER([string.h])

	#
	# Check for types and structures
	#
	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

	#
	# Checks for library functions
	#

	if test "${ac_no_link}" != "yes"; then
	AC_CHECK_FUNCS([memcpy])
	fi

	# Add any code coverage CPPFLAGS and LDFLAGS

	CPPFLAGS="${CPPFLAGS} ${NL_COVERAGE_CPPFLAGS}"
	LIBS="${LIBS} ${NL_COVERAGE_LIBS}"
	LDFLAGS="${LDFLAGS} ${NL_COVERAGE_LDFLAGS}"

	# At this point, we can restore the compiler flags to whatever the
	# user passed in, now that we're clear of an -Werror issues by
	# transforming -Wno-error back to -Werror.

	NL_RESTORE_WERROR

	#
	# Agent user
	#

	AC_ARG_WITH(
	[agent-user],
	[AS_HELP_STRING([--with-agent-user=<USER>],[Specify the user to run otbr-agent service @<:@default=root@:>@.])],
	[
	OTBR_AGENT_USER="${withval}"
	],
	[
	OTBR_AGENT_USER=root
	])

	AC_MSG_CHECKING([Agent user])
	AC_MSG_RESULT(${OTBR_AGENT_USER})
	AC_SUBST(OTBR_AGENT_USER)
	AC_DEFINE_UNQUOTED([OTBR_AGENT_USER],[${OTBR_AGENT_USER}],[Define the user to run otbr-agent service])

	#
	# systemd
	#

	AC_ARG_WITH([systemdsystemunitdir],
	AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Path to install systemd unit files.]),
	[], [with_systemdsystemunitdir=${prefix}$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
	if test -n "${with_systemdsystemunitdir}"; then
	AC_SUBST([systemdsystemunitdir], [${with_systemdsystemunitdir}])
	fi
	AM_CONDITIONAL(HAVE_SYSTEMD, [test -n "${with_systemdsystemunitdir}"])

	#
	# Identify the various makefiles and auto-generated files for the package
	#
	AC_CONFIG_FILES([
	Makefile
	third_party/Makefile
	third_party/Simple-web-server/Makefile
	third_party/libcoap/Makefile
	third_party/openthread/Makefile
	third_party/wpantund/Makefile
	third_party/mdl/Makefile
	third_party/angular/Makefile
	third_party/angular-material/Makefile
	include/Makefile
	src/Makefile
	src/agent/Makefile
	src/agent/otbr-agent.conf
	src/commissioner/Makefile
	src/common/Makefile
	src/dbus/Makefile
	src/dbus/client/Makefile
	src/dbus/common/Makefile
	src/dbus/server/Makefile
	src/utils/Makefile
	src/web/Makefile
	tests/Makefile
	tests/dbus/Makefile
	tests/mdns/Makefile
	tests/tools/Makefile
	tests/unit/Makefile
	tools/Makefile
	doc/Makefile
	])

	if test "$enable_commissioner" = "yes"; then
	ac_configure_args="$ac_configure_args --disable-examples --disable-documentation"
	AC_CONFIG_SUBDIRS([third_party/libcoap/repo])
	fi

	#
	# Generate the auto-generated files for the package
	#
	AC_OUTPUT

	#
	# Summarize the package configuration
	#

	AC_MSG_NOTICE([

	Configuration Summary
	---------------------
	Package : ${PACKAGE_NAME}
	Version : ${PACKAGE_VERSION}
	Interface : ${LIBOTBR_VERSION_INFO//:/.}
	Build system : ${build}
	Host system : ${host}
	Target system : ${target}
	Target architecture : ${target_cpu}
	Target OS : ${target_os}
	Cross compiling : ${cross_compiling}
	Build shared libraries : ${enable_shared}
	Build static libraries : ${enable_static}
	Build debug libraries : ${nl_cv_build_debug}
	Build optimized libraries : ${nl_cv_build_optimized}
	Build coverage libraries : ${nl_cv_build_coverage}
	Build coverage reports : ${nl_cv_build_coverage_reports}
	MDNS implementation : ${with_mdns}
	Commissioner : ${enable_commissioner}
	Web service : ${enable_web_service}
	OpenWRT : ${enable_openwrt}
	Lcov : ${LCOV:--}
	Genhtml : ${GENHTML:--}
	Build tests : ${nl_cv_build_tests}
	Prefix : ${prefix}
	Shadow directory program : ${LNDIR}
	Documentation support : ${nl_cv_build_docs}
	Doxygen : ${DOXYGEN:--}
	GraphViz dot : ${DOT:--}
	PERL : ${PERL:--}
	C Preprocessor : ${CPP}
	C Compiler : ${CC}
	C++ Preprocessor : ${CXXCPP}
	C++ Compiler : ${CXX}
	Archiver : ${AR}
	Archive Indexer : ${RANLIB}
	Symbol Stripper : ${STRIP}
	Object Copier : ${OBJCOPY}
	C Preprocessor flags : ${CPPFLAGS:--}
	C Compile flags : ${CFLAGS:--}
	C++ Compile flags : ${CXXFLAGS:--}
	Link flags : ${LDFLAGS:--}
	Link libraries : ${LIBS}

	])