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AC_INIT([nftables], [1.0.0], [netfilter-devel@vger.kernel.org])
AC_DEFINE([RELEASE_NAME], ["Fearless Fosdick #2"], [Release name])

AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([-Wall foreign subdir-objects
        tar-pax no-dist-gzip dist-bzip2 1.6])

dnl kernel style compile messages
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

AC_CONFIG_HEADER([config.h])

AC_ARG_ENABLE([debug],
	      AS_HELP_STRING([--disable-debug], [Disable debugging symbols]),
	      [], [enable_debug=yes])
AM_CONDITIONAL([BUILD_DEBUG], [test "x$enable_debug" != xno])

AC_ARG_ENABLE([man-doc],
	      AS_HELP_STRING([--disable-man-doc], [Disable man page documentation]),
	      [], [enable_man_doc=yes])
AM_CONDITIONAL([BUILD_MAN], [test "x$enable_man_doc" = "xyes" ])

# Checks for programs.
AC_PROG_CC
AC_PROG_MKDIR_P
AC_PROG_INSTALL
AC_PROG_SED
AM_PROG_LEX
AC_PROG_YACC

if test -z "$ac_cv_prog_YACC" -a ! -f "${srcdir}/src/parser_bison.c"
then
        echo "*** Error: No suitable bison/yacc found. ***"
        echo "    Please install the 'bison' package."
        exit 1
fi
if test -z "$ac_cv_prog_LEX" -a ! -f "${srcdir}/src/scanner.c"
then
        echo "*** Error: No suitable flex/lex found. ***"
        echo "    Please install the 'flex' package."
        exit 1
fi

AM_PROG_AR
AM_PROG_LIBTOOL
LT_INIT
AM_PROG_CC_C_O
AC_EXEEXT
AC_DISABLE_STATIC
CHECK_GCC_FVISIBILITY

AS_IF([test "x$enable_man_doc" = "xyes"], [
       AC_CHECK_PROG(A2X, [a2x], [a2x], [no])
       AS_IF([test "$A2X" = "no" -a ! -f "${srcdir}/doc/nft.8"],
	     [AC_MSG_ERROR([a2x not found, please install asciidoc])])
])

PKG_CHECK_MODULES([LIBMNL], [libmnl >= 1.0.4])
PKG_CHECK_MODULES([LIBNFTNL], [libnftnl >= 1.2.0])

AC_ARG_WITH([mini-gmp], [AS_HELP_STRING([--with-mini-gmp],
            [Use builtin mini-gmp (for embedded builds)])],
	    [], [with_mini_gmp=no])
AS_IF([test "x$with_mini_gmp" != xyes], [
AC_CHECK_LIB([gmp],[__gmpz_init], , AC_MSG_ERROR([No suitable version of libgmp found]))
])
AM_CONDITIONAL([BUILD_MINIGMP], [test "x$with_mini_gmp" = xyes])

AC_ARG_WITH([cli], [AS_HELP_STRING([--without-cli],
            [disable interactive CLI (libreadline, editline or linenoise support)])],
            [], [with_cli=readline])

AS_IF([test "x$with_cli" = xreadline], [
AC_CHECK_LIB([readline], [readline], ,
	     AC_MSG_ERROR([No suitable version of libreadline found]))
AC_DEFINE([HAVE_LIBREADLINE], [1], [])
],
      [test "x$with_cli" = xlinenoise], [
AC_CHECK_LIB([linenoise], [linenoise], ,
	     AC_MSG_ERROR([No suitable version of linenoise found]))
AC_DEFINE([HAVE_LIBLINENOISE], [1], [])
],
      [test "x$with_cli" = xeditline], [
AC_CHECK_LIB([edit], [readline], ,
	     AC_MSG_ERROR([No suitable version of libedit found]))
AC_DEFINE([HAVE_LIBEDIT], [1], [])
],
      [test "x$with_cli" != xno], [
AC_MSG_ERROR([unexpected CLI value: $with_cli])
])
AM_CONDITIONAL([BUILD_CLI], [test "x$with_cli" != xno])

AC_ARG_WITH([xtables], [AS_HELP_STRING([--with-xtables],
            [Use libxtables for iptables interaction])],
	    [], [with_xtables=no])
AS_IF([test "x$with_xtables" != xno], [
PKG_CHECK_MODULES([XTABLES], [xtables >= 1.6.1])
AC_DEFINE([HAVE_LIBXTABLES], [1], [0])
])
AM_CONDITIONAL([BUILD_XTABLES], [test "x$with_xtables" = xyes])

AC_ARG_WITH([json], [AS_HELP_STRING([--with-json],
            [Enable JSON output support])],
	    [], [with_json=no])
AS_IF([test "x$with_json" != xno], [
AC_CHECK_LIB([jansson], [json_object], ,
	AC_MSG_ERROR([No suitable version of libjansson found]))
AC_DEFINE([HAVE_LIBJANSSON], [1], [Define if you have libjansson])
])
AM_CONDITIONAL([BUILD_JSON], [test "x$with_json" != xno])

AC_ARG_ENABLE(python,
       AS_HELP_STRING([--enable-python], [Enable python]),,[enable_python=check]
       )

AC_ARG_WITH([python_bin],
            [AS_HELP_STRING([--with-python-bin], [Specify Python binary to use])],
	    [PYTHON_BIN="$withval"], [AC_PATH_PROGS(PYTHON_BIN, python python2 python2.7 python3)]
	   )

AS_IF([test "x$PYTHON_BIN" = "x"], [
	AS_IF([test "x$enable_python" = "xyes"], [AC_MSG_ERROR([Python asked but not found])],
	[test "x$enable_python" = "xcheck"], [
		AC_MSG_WARN([Python not found, continuing anyway])
		enable_python=no
	])
])

AM_CONDITIONAL([HAVE_PYTHON], [test "$enable_python" != "no"])

AC_CONFIG_FILES([					\
		Makefile				\
		libnftables.pc				\
		src/Makefile				\
		include/Makefile			\
		include/nftables/Makefile		\
		include/linux/Makefile			\
		include/linux/netfilter/Makefile	\
		include/linux/netfilter_arp/Makefile	\
		include/linux/netfilter_bridge/Makefile	\
		include/linux/netfilter_ipv4/Makefile	\
		include/linux/netfilter_ipv6/Makefile	\
		files/Makefile				\
		files/examples/Makefile			\
		files/nftables/Makefile			\
		files/osf/Makefile			\
		doc/Makefile				\
		py/Makefile				\
		])
AC_OUTPUT

echo "
nft configuration:
  cli support:			${with_cli}
  enable debugging symbols:	${enable_debug}
  use mini-gmp:			${with_mini_gmp}
  enable man page:              ${enable_man_doc}
  libxtables support:		${with_xtables}
  json output support:          ${with_json}"

AS_IF([test "$enable_python" != "no"], [
	echo "  enable Python:		yes (with $PYTHON_BIN)"
	], [
	echo "  enable Python:		no"
	]
	)