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

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AC_PREREQ([2.59])
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AC_INIT(bind10, 10.0.0, bind10-bugs@isc.org)
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AC_CONFIG_SRCDIR(README)
AM_INIT_AUTOMAKE
AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
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AC_PROG_LIBTOOL

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# Use C++ language
AC_LANG_CPLUSPLUS
AX_COMPILER_VENDOR

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m4_define([_AM_PYTHON_INTERPRETER_LIST], [python python3 python3.1])
AM_PATH_PYTHON([3.1])

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# TODO: check for _sqlite3.py module

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# default compiler warning settings
if test "X$GCC" = "Xyes"; then
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CXXFLAGS="$CXXFLAGS -g -Wall -Wextra -Wwrite-strings -Woverloaded-virtual -Wno-sign-compare"
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UNUSED_PARAM_ATTRIBUTE='__attribute__((unused))'
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# Certain versions of gcc (g++) have a bug that incorrectly warns about
# the use of anonymous name spaces even if they're closed in a single
# translation unit.  For these versions we have to disable -Werror.
werror_ok=0
CXXFLAGS_SAVED="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -Werror"
AC_MSG_CHECKING(for in-TU anonymous namespace breakage)
AC_TRY_COMPILE([namespace { class Foo {}; }
namespace isc {class Bar {Foo foo_;};} ],,
	[AC_MSG_RESULT(no)
	 werror_ok=1],
	[AC_MSG_RESULT(yes)])
CXXFLAGS="$CXXFLAGS_SAVED"
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fi
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AC_DEFINE_UNQUOTED(UNUSED_PARAM, $UNUSED_PARAM_ATTRIBUTE, Define to compiler keyword indicating a function argument is intentionally unused)
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AM_CONDITIONAL(GCC_WERROR_OK, test $werror_ok = 1)
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# produce PIC unless we disable shared libraries. need this for python bindings.
if test $enable_shared != "no" -a "X$GCC" = "Xyes"; then
   CXXFLAGS="$CXXFLAGS -fPIC"
fi

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# Checks for libraries.

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AC_SEARCH_LIBS(inet_pton, [nsl])
AC_SEARCH_LIBS(recvfrom, [socket])

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# Checks for header files.

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_TYPE_SIZE_T

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AC_MSG_CHECKING(for sa_len in struct sockaddr)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>],
[struct sockaddr sa; sa.sa_len = 0; return (0);],
        [AC_MSG_RESULT(yes)
        AC_DEFINE(HAVE_SIN_LEN, 1, Define to 1 if sockaddr_in has a sin_len member)],
        AC_MSG_RESULT(no))

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AC_ARG_WITH(lcov,
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[  --with-lcov[=PROGRAM]         enable gtest and coverage target using the specified lcov], lcov="$withval", lcov="no")
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AC_ARG_WITH(gtest,
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[  --with-gtest=PATH       specify a path to gtest header files (PATH/include) and library (PATH/lib)],
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    gtest_path="$withval", gtest_path="no")
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USE_LCOV="no"
if test "$lcov" != "no"; then
	# force gtest if not set
	if test "$gtest_path" = "no"; then
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#		AC_MSG_ERROR("lcov needs gtest for test coverage report")
		AC_MSG_NOTICE([gtest support is now enabled, because used by coverage tests])
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		gtest_path="yes"
	fi
	if test "$lcov" != "yes"; then
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		LCOV=$lcov
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	else
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		AC_PATH_PROG([LCOV], [lcov])
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	fi
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	if test -x "${LCOV}"; then
		USE_LCOV="yes"
	else
		AC_MSG_ERROR([Cannot find lcov.])
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	fi
	# is genhtml always in the same directory?
	GENHTML=`echo "$LCOV" | sed s/lcov$/genhtml/`
	if test ! -x $GENHTML; then
		AC_MSG_ERROR([genhtml not found, needed for lcov])
	fi
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	# GCC specific?
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	CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
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	LIBS=" $LIBS -lgcov"
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	AC_SUBST(CPPFLAGS)
	AC_SUBST(LIBS)
	AC_SUBST(LCOV)
	AC_SUBST(GENHTML)
fi
AC_SUBST(USE_LCOV)

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# Check availability of the Boost System library

AC_MSG_CHECKING([for boost::system library])
AC_ARG_WITH([boostlib],
AC_HELP_STRING([--with-boostlib=PATH],
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  [specify a path to boost libraries if it is not automatically found, or "no" to disable it]),
  [boostlib_path="$withval"], [boostlib_path="auto"])
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if test "$boostlib_path" != "no" -a "$boostlib_path" != "auto" -a "$boostlib_path" != "yes"; then
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	BOOST_LDFLAGS="-L$boostlib_path"
fi

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if test "$boostlib_path" != "no"; then
	LDFLAGS_SAVED="$LDFLAGS"
	LIBS_SAVED="$LIBS"
	CPPFLAGS_SAVED="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS -Iext"

	for BOOST_TRY_LIB in boost_system boost_system-mt; do
		LDFLAGS="$LDFLAGS_SAVED ${BOOST_LDFLAGS}"
		LIBS="$LIBS_SAVED -l${BOOST_TRY_LIB}"
		AC_TRY_LINK([#include <boost/system/error_code.hpp>],
			[ boost::system::error_code error_code;
			std::string message(error_code.message());
			return 0; ],
			[ AC_MSG_RESULT(yes)
			BOOST_SYSTEM_LIB="-l${BOOST_TRY_LIB}"
			],[])
		if test "X${BOOST_SYSTEM_LIB}" != X; then
        		break
		fi
	done

	LDFLAGS="$LDFLAGS_SAVED"
	CPPFLAGS="$CPPFLAGS_SAVED"
	LIBS="$LIBS_SAVED"
fi
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if test "X${BOOST_SYSTEM_LIB}" = X; then
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	AC_MSG_RESULT(no)
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else
	AC_DEFINE(HAVE_BOOSTLIB, 1, Define to 1 if boost libraries are available)
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fi

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AM_CONDITIONAL(HAVE_BOOSTLIB, test "X${BOOST_SYSTEM_LIB}" != X)
AC_SUBST(BOOST_LDFLAGS)
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AC_SUBST(BOOST_SYSTEM_LIB)

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#
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# Check availability of gtest, which will be used for unit tests.
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#
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if test "$gtest_path" != "no"
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then
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	if test "$gtest_path" != "yes"; then
		GTEST_PATHS=$gtest_path
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		if test -x "${gtest_path}/bin/gtest-config" ; then
			GTEST_CONFIG="${gtest_path}/bin/gtest-config"
		fi
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	else
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		AC_PATH_PROG([GTEST_CONFIG], [gtest-config])
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	fi
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	if test -x "${GTEST_CONFIG}" ; then :
		# using cppflags instead of cxxflags
		GTEST_INCLUDES=`${GTEST_CONFIG} --cppflags`
		GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
		GTEST_LDADD=`${GTEST_CONFIG} --libs`
		GTEST_FOUND="true"
	else
		AC_MSG_WARN([Unable to locate Google Test gtest-config.])
		if test -z "${GTEST_PATHS}" ; then
			GTEST_PATHS="/usr /usr/local"
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		fi
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		GTEST_FOUND="false"
	fi
	if test "${GTEST_FOUND}" != "true"; then
		GTEST_FOUND="false"
		for dir in $GTEST_PATHS; do
			if test -f "$dir/include/gtest/gtest.h"; then
				GTEST_INCLUDES="-I$dir/include"
				GTEST_LDFLAGS="-L$dir/lib"
				GTEST_LDADD="-lgtest"
				GTEST_FOUND="true"
				break
			fi
		done
	fi
	if test "${GTEST_FOUND}" != "true"; then
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		AC_MSG_ERROR([Cannot find gtest in: $GTEST_PATHS])
	fi
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else
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	GTEST_INCLUDES=
	GTEST_LDFLAGS=
	GTEST_LDADD=
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fi
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AM_CONDITIONAL(HAVE_GTEST, test $gtest_path != "no")
AC_SUBST(GTEST_INCLUDES)
AC_SUBST(GTEST_LDFLAGS)
AC_SUBST(GTEST_LDADD)
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PKG_CHECK_MODULES(SQLITE, sqlite3 >= 3.3.9)
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# Checks for library functions.

AC_CONFIG_FILES([Makefile
                 src/Makefile
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                 src/bin/Makefile
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                 src/bin/bind10/Makefile
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                 src/bin/cmdctl/Makefile
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                 src/bin/bindctl/Makefile
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                 src/bin/cfgmgr/Makefile
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                 src/bin/host/Makefile
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                 src/bin/loadzone/Makefile
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                 src/bin/msgq/Makefile
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                 src/bin/auth/Makefile
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                 src/bin/auth/tests/Makefile
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                 src/bin/xfrin/Makefile
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                 src/bin/usermgr/Makefile
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                 src/lib/Makefile
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                 src/lib/cc/Makefile
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                 src/lib/python/Makefile
                 src/lib/python/isc/Makefile
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                 src/lib/python/isc/auth/Makefile
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                 src/lib/python/isc/cc/Makefile
                 src/lib/python/isc/config/Makefile
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                 src/lib/config/Makefile
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                 src/lib/config/tests/Makefile
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                 src/lib/dns/Makefile
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                 src/lib/dns/tests/Makefile
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                 src/lib/exceptions/Makefile
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                 src/lib/auth/Makefile
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                 src/lib/auth/tests/Makefile
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               ])
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AC_OUTPUT([src/bin/cfgmgr/b10-cfgmgr.py
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           src/bin/cmdctl/cmdctl.py
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           src/bin/cmdctl/run_b10-cmdctl.sh
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           src/bin/cmdctl/unittest/cmdctl_test
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           src/bin/xfrin/unittest/xfrin_test
           src/bin/xfrin/xfrin.py
           src/bin/xfrin/run_b10-xfrin.sh
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           src/bin/bind10/bind10.py
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           src/bin/bind10/tests/bind10_test
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           src/bin/bind10/run_bind10.sh
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           src/bin/bindctl/bindctl
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           src/bin/bindctl/unittest/bindctl_test
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           src/bin/loadzone/run_loadzone
           src/bin/loadzone/b10-loadzone.py
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           src/bin/usermgr/run_b10-cmdctl-usermgr.sh
           src/bin/usermgr/b10-cmdctl-usermgr.py
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           src/bin/msgq/msgq.py
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           src/bin/msgq/msgq_test
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           src/bin/msgq/run_msgq.sh
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           src/bin/auth/spec_config.h
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           src/lib/config/tests/data_def_unittests_config.h
           src/lib/python/isc/config/tests/config_test
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           src/lib/dns/gen-rdatacode.py
           src/lib/dns/tests/testdata/gen-wiredata.py
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          ], [
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           chmod +x src/bin/cmdctl/run_b10-cmdctl.sh
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           chmod +x src/bin/xfrin/run_b10-xfrin.sh
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           chmod +x src/bin/bind10/run_bind10.sh
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           chmod +x src/bin/cmdctl/unittest/cmdctl_test
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           chmod +x src/bin/xfrin/unittest/xfrin_test
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           chmod +x src/bin/bindctl/unittest/bindctl_test
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           chmod +x src/bin/bindctl/bindctl
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           chmod +x src/bin/loadzone/run_loadzone
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           chmod +x src/bin/usermgr/run_b10-cmdctl-usermgr.sh
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           chmod +x src/bin/msgq/run_msgq.sh
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           chmod +x src/bin/msgq/msgq_test
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           chmod +x src/lib/dns/gen-rdatacode.py
           chmod +x src/lib/dns/tests/testdata/gen-wiredata.py
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          ])
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AC_OUTPUT