configure.in

dnl
dnl vtrunkd - Virtual Tunnel Trunking over TCP/IP network.
dnl Copyright (C) 2011-2016  Vrayo Systems Ltd. team
dnl derived from
dnl VTun - Virtual Tunnel over TCP/IP network.
dnl Copyright (C) 1998-2006  Maxim Krasnyansky <max_mk@yahoo.com>
dnl License: GPL v.3 or higher
dnl configure.in,v 1.10.2.12.2.6 2006/12/11 01:47:45 mtbishop Exp
dnl
dnl Process this file with autoconf to produce a configure script.
dnl

AC_INIT(lib.c)
AC_CONFIG_HEADER(config.h)

CFLAGS="$CFLAGS -std=gnu99"

dnl no O3 support
AC_ARG_ENABLE(o3,
   --disable-o3     	   Compile without -O3 optimization,
   O3=$enableval,
   O3=yes
)

AC_ARG_ENABLE(sum-send,
   --enable-sum-send      Enable redundancy code sending,
   SUM_SEND=$enableval,
   SUM_SEND=no
)

AC_ARG_ENABLE(mark,
   --disable-mark     	   Disable SO_MARK support on socket. Only available in Linux >=2.6.25,
   MARK=$enableval,
   MARK=yes
)

AC_ARG_ENABLE(syslog,
   --disable-syslog          Disable syslog output,
   SYSLOG=$enableval,
   SYSLOG=yes
)

dnl enable low memory opt
AC_ARG_ENABLE(low-mem,
   --enable-low-mem         Compile for low ram device,
   LOW_MEM=$enableval,
   LOW_MEM=no
)

AC_ARG_ENABLE(json,
   --enable-json              JSON logging,
   JSON=$enableval,
   JSON=no
)

dnl enable verbose debug
AC_ARG_ENABLE(debugg,
   --enable-debugg     	   Compile with verbose logging for debug,
   DEBUGG=$enableval,
   DEBUGG=no
)

AC_ARG_ENABLE(self-testing,
   --enable-self-testing         Compile with self-testing support,
   SELFTESTING=$enableval,
   SELFTESTING=no
)

AC_ARG_ENABLE(client-only,
   --enable-client-only     	   Client only version,
   CLIENTONLY=$enableval,
   CLIENTONLY=no
)

AC_ARG_WITH(ssl-headers,
   --with-ssl-headers=DIR  Crypto Include files location,
   SSL_HDR_DIR="$withval"
   CPPFLAGS="$CPPFLAGS -I$withval" 
)
AC_ARG_WITH(ssl-lib,
   --with-ssl-lib=DIR      Crypto Library location,
   LIBS="$LIBS -L$withval" 
)

AC_ARG_WITH(lzo-headers,
   --with-lzo-headers=DIR     LZO Include files location,
   LZO_HDR_DIR="$withval"
)
AC_ARG_WITH(lzo-lib,
   --with-lzo-lib=DIR         LZO Library location,
   LIBS="$LIBS -L$withval" 
)

AC_ARG_WITH(blowfish-headers,
   --with-blowfish-headers=DIR     Blowfish Include files location,
   BLOWFISH_HDR_DIR="$withval"
)

AC_ARG_WITH(socks-lib,
   --with-socks-lib=DIR         SOCKS Library location,
   LIBS="$LIBS -L$withval" 
)

dnl Guess host type.
AC_CANONICAL_HOST
AC_CANONICAL_SYSTEM

dnl Check for programs.
AC_PROG_YACC
AC_PROG_LEX
AC_PROG_CC
AC_PROG_INSTALL

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE

dnl Check for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/resource.h netdb.h sched.h resolv.h arpa/inet.h)
AC_CHECK_HEADERS(netinet/ip.h netinet/in.h netinet/tcp.h netinet/in_systm.h)
AC_CHECK_HEADERS(libutil.h sys/sockio.h)

dnl Check for libsocket
AC_SEARCH_LIBS(socket, socket)

dnl Check for libnsl
AC_SEARCH_LIBS(inet_ntoa, nsl)

dnl Check for pthread
AC_SEARCH_LIBS(pthread_create, pthread)

dnl Check for libresolv
AC_SEARCH_LIBS(gethostbyname, resolv nsl)

dnl Check for librt
AC_SEARCH_LIBS(nanosleep, rt posix4)

dnl Check for setproctitle in libutil
AC_SEARCH_LIBS(setproctitle, util bsd, AC_DEFINE(HAVE_SETPROC_TITLE) )

if test "$MARK" = "no"; then
	  CFLAGS="$CFLAGS -DW_O_SO_MARK=1"
fi

if test "$SYSLOG" = "yes"; then
          CFLAGS="$CFLAGS -DSYSLOG=1"
fi

if test "$SUM_SEND" = "yes"; then
          CFLAGS="$CFLAGS -DSUM_SEND=1"
fi

if test "$DEBUGG" = "yes"; then
	  CFLAGS="$CFLAGS -DDEBUGG=1"
fi

if test "$SELFTESTING" = "yes"; then
          CFLAGS="$CFLAGS -DTESTING=1"
fi

if test "$LOW_MEM" = "yes"; then
          CFLAGS="$CFLAGS -DLOW_MEM=1"
fi

if test "$JSON" = "yes"; then
          CFLAGS="$CFLAGS -DJSON=1"
fi

if test "$O3" = "yes"; then
	  CFLAGS="$CFLAGS -O3"
fi

if test "$CLIENTONLY" = "yes"; then
	  CFLAGS="$CFLAGS -DCLIENTONLY=1"
fi

AC_MSG_RESULT()

AC_CHECK_FUNCS([getpt grantpt unlockpt ptsname])

OS_REL=`uname -r | tr -d '[A-Za-z\-\_\.]'`
case $host_os in
	*linux*)
	     OS_DIR="linux"
	     AC_CHECK_HEADERS(linux/if_tun.h)
	     ;;
	*solaris*)
	     OS_DIR="svr4"
	     ;;
	*freebsd*)
	     if test "$OS_REL" -ge "40"; then 
	        OS_DIR="freebsd"
	     fi
	     ;;
	*openbsd*)
	     if test "$OS_REL" -ge "25"; then 
	        OS_DIR="openbsd"
	     fi
	     ;;
esac	     
AC_LINK_DRV(`cat vtun.drivers`, $OS_DIR)

AC_MSG_RESULT()

dnl Build release name
changequote(<,>)
dnl REL=`echo 'BRANCH-3_X' | tr -d '$: \-' | sed 's/^[A-Za-z]*//' | sed 's/\_/\./'`
REL="0.1b"
changequote([,])

AC_DEFINE_UNQUOTED(VTUN_VER, "$REL `date '+%m/%d/%Y'`")

AC_OUTPUT(Makefile)