Internet on FIRE

dnl ** This is a configure script template for BIRD

dnl ** Process it with autoconf to get ./configure

dnl ** (c) 1999--2000 Martin Mares <mj@ucw.cz>

AC_REVISION($Id$)

AC_INIT(conf/confbase.Y)

AC_CONFIG_AUX_DIR(tools)

AC_ARG_ENABLE(debug,	[  --enable-debug          enable internal debugging routines (default: disabled)],,enable_debug=no)

AC_ARG_ENABLE(memcheck,	[  --enable-memcheck       check memory allocations when debugging (default: enabled)],,enable_memcheck=yes)

AC_ARG_ENABLE(client,	[  --enable-client         enable building of BIRD client (default: enabled)],,enable_client=yes)

AC_ARG_ENABLE(ipv6,	[  --enable-ipv6           enable building of IPv6 version (default: disabled)],,enable_ipv6=no)

AC_ARG_WITH(suffix,	[  --with-suffix=STRING    use specified suffix for BIRD files (default: 6 for IPv6 version)],[given_suffix="yes"])

AC_ARG_WITH(sysconfig,	[  --with-sysconfig=FILE   use specified BIRD system configuration file])

AC_ARG_WITH(protocols,	[  --with-protocols=LIST   include specified routing protocols (default: all)],,[with_protocols="all"])

AC_ARG_WITH(sysinclude,	[  --with-sysinclude=PATH  search for system includes on specified place])

AC_ARG_WITH(runtimedir,	[  --with-runtimedir=PATH  path for runtime files (default: $(localstatedir)/run)],[runtimedir="$with_runtimedir"],[runtimedir="\$(localstatedir)/run"])

AC_ARG_WITH(iproutedir,	[  --with-iproutedir=PATH  path to iproute2 config files (default: /etc/iproute2)],[given_iproutedir="yes"])

AC_ARG_VAR([FLEX], [location of the Flex program])

AC_ARG_VAR([BISON], [location of the Bison program])

AC_ARG_VAR([M4], [location of the M4 program])

if test "$srcdir" = . ; then

	# Building in current directory => create obj directory holding all objects

	objdir=obj

	mkdir -p obj

	srcdir_rel=..

	makefiles="Makefile:tools/Makefile-top.in obj/Makefile:tools/Makefile.in obj/Rules:tools/Rules.in"

	exedir=..

else

	# Building in separate directory

	objdir=.

	srcdir_rel=$srcdir

	makefiles="Makefile:tools/Makefile.in Rules:tools/Rules.in"

	exedir=.

fi

case $srcdir_rel in

	/*)	srcdir_rel_mf=$srcdir_rel ;;

	*)	srcdir_rel_mf="\$(root-rel)$srcdir_rel" ;;

esac

AC_SUBST(objdir)

AC_SUBST(exedir)

AC_SUBST(srcdir_rel_mf)

AC_SUBST(runtimedir)

if test "$enable_ipv6" = yes ; then

	ip=ipv6

	SUFFIX=6

	all_protocols=bgp,ospf,pipe,radv,rip,static

else

	ip=ipv4

	SUFFIX=""

	all_protocols=bgp,ospf,pipe,rip,static

fi

if test "$given_suffix" = yes ; then

   	SUFFIX="$with_suffix"

fi

AC_SUBST(SUFFIX)

if test "$with_protocols" = all ; then

	with_protocols="$all_protocols"

fi

if test "$enable_debug" = yes ; then

	CONFIG_FILE="bird$SUFFIX.conf"

	CONTROL_SOCKET="bird$SUFFIX.ctl"

else

	CONFIG_FILE="\$(sysconfdir)/bird$SUFFIX.conf"

	CONTROL_SOCKET="$runtimedir/bird$SUFFIX.ctl"

fi

AC_SUBST(CONFIG_FILE)

AC_SUBST(CONTROL_SOCKET)

AC_SEARCH_LIBS(clock_gettime,[c rt posix4])

AC_CANONICAL_HOST

# Store this value because ac_test_CFLAGS is overwritten by AC_PROG_CC

if test "$ac_test_CFLAGS" != set ; then

	bird_cflags_default=yes

fi

AC_PROG_CC

if test -z "$GCC" ; then

	AC_MSG_ERROR([This program requires the GNU C Compiler.])

fi

AC_MSG_CHECKING([what CFLAGS should we use])

if test "$bird_cflags_default" = yes ; then

	BIRD_CHECK_GCC_OPTIONS

	CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-parentheses"

	if test "$bird_cv_c_option_no_pointer_sign" = yes ; then

		CFLAGS="$CFLAGS -Wno-pointer-sign"

	fi

fi

AC_MSG_RESULT($CFLAGS)

AC_PROG_CPP

AC_PROG_INSTALL

AC_PROG_RANLIB

AC_CHECK_PROG(FLEX, flex, flex)

AC_CHECK_PROG(BISON, bison, bison)

AC_CHECK_PROGS(M4, gm4 m4)

test -z "$FLEX"	 && AC_MSG_ERROR([Flex is missing.])

test -z "$BISON" && AC_MSG_ERROR([Bison is missing.])

test -z "$M4"	 && AC_MSG_ERROR([M4 is missing.])

BIRD_CHECK_PROG_FLAVOR_GNU([$M4], , [AC_MSG_ERROR([Provided M4 is not GNU M4.])])

if test -n "$with_sysconfig" -a "$with_sysconfig" != no ; then

	if test -f $with_sysconfig ; then

		sysdesc=$with_sysconfig

	else

		sysdesc=$srcdir/sysdep/cf/$with_sysconfig

		if ! test -f $sysdesc ; then

			sysdesc=$sysdesc.h

		fi

	fi

elif test -f sysconfig.h ; then

	sysdesc=sysconfig

else

	case "$ip:$host_os" in

		ipv6:linux*)	sysdesc=linux-v6

				default_iproutedir="/etc/iproute2"

				;;

		ipv4:linux*)	sysdesc=linux

				default_iproutedir="/etc/iproute2"

				;;

		ipv6:netbsd*)	sysdesc=bsd-v6

				CPPFLAGS="$CPPFLAGS -I/usr/pkg/include"

				LDFLAGS="$LDFLAGS -L/usr/pkg/lib -R/usr/pkg/lib"

				;;

		ipv4:netbsd*)	sysdesc=bsd

				CPPFLAGS="$CPPFLAGS -I/usr/pkg/include"

				LDFLAGS="$LDFLAGS -L/usr/pkg/lib -R/usr/pkg/lib"

				;;

		ipv6:freebsd*)	sysdesc=bsd-v6

				;;

		ipv4:freebsd*)	sysdesc=bsd

				;;

		ipv6:kfreebsd*) sysdesc=bsd-v6

				;;

		ipv4:kfreebsd*) sysdesc=bsd

				;;

		ipv6:openbsd*)	sysdesc=bsd-v6

				;;

		ipv4:openbsd*)	sysdesc=bsd

				;;

		*)		AC_MSG_ERROR([Cannot determine correct system configuration. Please use --with-sysconfig to set it manually.])

				;;

		esac

	sysdesc=$srcdir/sysdep/cf/$sysdesc.h

fi

AC_MSG_CHECKING([which OS configuration should we use])

AC_MSG_RESULT($sysdesc)

if ! test -f $sysdesc ; then

	AC_MSG_ERROR([The system configuration file is missing.])

fi

sysname=`echo $sysdesc | sed 's/\.h$//'`

AC_DEFINE_UNQUOTED(SYSCONF_INCLUDE, "$sysdesc")

AC_MSG_CHECKING([system-dependent directories])

sysdep_dirs="`sed <$sysdesc '/^Link: /!d;s/^Link: \(.*\)$/\1/' | tr '\012' ' '` lib"

AC_MSG_RESULT($sysdep_dirs)

AC_SUBST(sysdep_dirs)

if test "$with_iproutedir" = no ; then with_iproutedir= ; fi

if test -n "$given_iproutedir"

then iproutedir=$with_iproutedir

else iproutedir=$default_iproutedir

fi

AC_SUBST(iproutedir)

AC_MSG_CHECKING([protocols])

protocols=`echo "$with_protocols" | sed 's/,/ /g'`

if test "$protocols" = no ; then protocols= ; fi

for a in $protocols ; do

	if ! test -f $srcdir/proto/$a/Makefile ; then

		AC_MSG_RESULT(failed)

		AC_MSG_ERROR([Requested protocol $a not found.])

		fi

	AC_DEFINE_UNQUOTED(CONFIG_`echo $a | tr 'a-z' 'A-Z'`)

	done

AC_MSG_RESULT(ok)

AC_SUBST(protocols)

case $sysdesc in

	*/linux*|*/linux-v6*)

		AC_CHECK_HEADER(linux/rtnetlink.h,,[AC_MSG_ERROR([Appropriate version of Linux kernel headers not found.])],[

#include <asm/types.h>

#include <sys/socket.h>

])

		;;

esac

AC_CHECK_HEADER(syslog.h, [AC_DEFINE(HAVE_SYSLOG)])

AC_CHECK_HEADER(alloca.h, [AC_DEFINE(HAVE_ALLOCA_H)])

AC_MSG_CHECKING(whether 'struct sockaddr' has sa_len)

AC_TRY_COMPILE([#include <sys/types.h>

  #include <sys/socket.h>

  ], [static struct sockaddr sa; int i = sizeof(sa.sa_len);],

  [AC_MSG_RESULT(yes)

  AC_DEFINE(HAVE_SIN_LEN,,sin_len)],

  AC_MSG_RESULT(no))

AC_C_BIGENDIAN([AC_DEFINE(CPU_BIG_ENDIAN)], [AC_DEFINE(CPU_LITTLE_ENDIAN)],

		 [AC_MSG_ERROR([Cannot determine CPU endianity.])])

BIRD_CHECK_INTEGERS

BIRD_CHECK_STRUCT_ALIGN

BIRD_CHECK_TIME_T

BIRD_CHECK_STRUCT_IP_MREQN

if test "$enable_debug" = yes ; then

	AC_DEFINE(DEBUGGING)

	if test "$enable_memcheck" = yes ; then

		AC_CHECK_LIB(dmalloc, dmalloc_debug)

		if test $ac_cv_lib_dmalloc_dmalloc_debug != yes ; then

			AC_CHECK_LIB(efence, malloc)

		fi

	fi

fi

CLIENT=

CLIENT_LIBS=

if test "$enable_client" = yes ; then

	CLIENT=client

	AC_CHECK_LIB(history, add_history, CLIENT_LIBS="-lhistory")

	AC_CHECK_LIB(ncurses, tgetent, USE_TERMCAP_LIB=-lncurses,

		AC_CHECK_LIB(curses, tgetent, USE_TERMCAP_LIB=-lcurses,

			AC_CHECK_LIB(tinfow, tgetent, USE_TERMCAP_LIB=-ltinfow,

				AC_CHECK_LIB(tinfo, tgetent, USE_TERMCAP_LIB=-ltinfo

					AC_CHECK_LIB(termcap, tgetent, USE_TERMCAP_LIB=-ltermcap)))))

	AC_CHECK_LIB(readline, rl_callback_read_char, CLIENT_LIBS="-lreadline $CLIENT_LIBS $USE_TERMCAP_LIB",

		AC_MSG_ERROR([[The client requires GNU readline library 2.1 or newer. Either install the library or use --disable-client to compile without the client.]]), $USE_TERMCAP_LIB)

	AC_CHECK_LIB(readline, rl_crlf, AC_DEFINE(HAVE_RL_CRLF),,$USE_TERMCAP_LIB)

	AC_CHECK_LIB(readline, rl_ding, AC_DEFINE(HAVE_RL_DING),,$USE_TERMCAP_LIB)

fi

AC_SUBST(CLIENT)

AC_SUBST(CLIENT_LIBS)

mkdir -p $objdir/sysdep

AC_CONFIG_HEADERS([$objdir/sysdep/autoconf.h:sysdep/autoconf.h.in])

AC_CONFIG_COMMANDS([merge],[[export CPP="$CPP"

$srcdir/tools/mergedirs $srcdir $srcdir_rel $objdir $sysdep_dirs]],

	[[srcdir=$srcdir]

	[srcdir_rel=$srcdir_rel]

	[objdir=$objdir]

	[sysdep_dirs="$sysdep_dirs"]])

AC_CONFIG_FILES($makefiles)

AC_OUTPUT

rm -f $objdir/sysdep/paths.h

cat >&AC_FD_MSG <<EOF

BIRD was configured with the following options:

	Source directory:	$srcdir

	Object directory:	$objdir

	Iproute2 directory:	$iproutedir

	System configuration:	$sysdesc

	Debugging:		$enable_debug

	Routing protocols:	$protocols

	Client:			$enable_client

EOF

rm -f $objdir/.*-stamp