configure.in - net/dsniff - Rivoreo Source Code Repositories

 dnl configure.in
 dnl
 dnl Copyright (c) 2000 Dug Song <dugsong@monkey.org>
 dnl
 dnl $Id: configure.in,v 1.27 2000/12/20 16:31:21 dugsong Exp $

 AC_INIT(dsniff.c)

 AC_CONFIG_HEADER(config.h)

 dnl Initialize prefix.
 if test "$prefix" = "NONE"; then
    prefix="/usr/local"
 fi

 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_RANLIB

 dnl Checks for header files.
 AC_PATH_XTRA
 AC_HEADER_STDC
 AC_CHECK_HEADERS(err.h fcntl.h sys/ioctl.h sys/queue.h unistd.h libgen.h net/if_tun.h)
 dnl XXX - Solaris sux.
 AC_MSG_CHECKING(for MIN and MAX in sys/param.h)
 AC_EGREP_CPP(yes, [
 #include <sys/param.h>
 #if defined(MAX) && defined(MIN)
  yes
 #endif
 ],
 [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MINMAX) ],
 [ AC_MSG_RESULT(no) ]
 )

 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_TYPE_SIZE_T
 AC_STRUCT_TM
 dnl XXX - Solaris sux.
 AC_CHECK_TYPE(u_int32_t, uint32_t)
 AC_CHECK_TYPE(u_int64_t, uint64_t)
 dnl XXX - Linux sux.
 AC_CHECK_TYPE(in_addr_t, u_int32_t)
 CFLAGS="$CFLAGS -D_BSD_SOURCE"

 dnl Checks for library functions.
 AC_PROG_GCC_TRADITIONAL
 AC_FUNC_MEMCMP
 AC_TYPE_SIGNAL
 AC_FUNC_STRFTIME
 AC_CHECK_FUNCS(gethostname socket strdup strstr)
 AC_CHECK_LIB(rpcsvc, xdr_fhstatus)
 dnl XXX - Solaris sux.
 AC_CHECK_LIB(socket, socket)
 AC_CHECK_LIB(nsl, gethostbyname)
 dnl XXX - feh, everything except OpenBSD sux.
 AC_CHECK_LIB(resolv, dn_expand)
 AC_REPLACE_FUNCS(dirname strlcpy strlcat strsep)
 neederr=no
 AC_CHECK_FUNCS(warnx, , [neederr=yes])
 if test $neederr = yes; then
    LIBOBJS="$LIBOBJS err.o"
 fi
 needethers=no
 AC_CHECK_FUNCS(ether_ntoa, , [needethers=yes])
 if test $needethers = yes; then
    LIBOBJS="$LIBOBJS ethers.o"
 fi

 dnl Checks for BSD tunnel device
 dnl if test "x$ac_cv_header_net_if_tun_h" = "xyes"; then
 dnl   TCPHIJACK="tcphijack"
 dnl fi
 AC_SUBST(TCPHIJACK)

 dnl Checks for X11
 if test "x$no_x" = "x"; then
    WEBSPY="webspy"; AC_SUBST(WEBSPY)
 fi

 dnl Checks for Berkeley DB
 AC_MSG_CHECKING(for Berkeley DB with 1.85 compatibility)
 AC_ARG_WITH(db,
 [  --with-db=DIR           use Berkeley DB (with --enable-compat185) in DIR],
 [ case "$withval" in
   yes|no)
      AC_MSG_RESULT(no)
      ;;
   *)
      AC_MSG_RESULT($withval)
      if test -f $withval/build_unix/db_185.h -a \
 	     -f $withval/build_unix/libdb.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	AC_DEFINE(HAVE_DB_185_H)
 	DBINC="-I$withval/build_unix"
 	DBLIB="-L$withval/build_unix -ldb"
      elif test -f $withval/dist/db_185.h -a \
 	       -f $withval/dist/libdb.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	AC_DEFINE(HAVE_DB_185_H)
 	DBINC="-I$withval/dist"
 	DBLIB="-L$withval/dist -ldb"
      elif test -f $withval/include/db_185.h -a \
 	       -f $withval/lib/libdb.a; then
 	owd=`pwd`
 	if cd $withval; then withval=`pwd`; cd $owd; fi
 	AC_DEFINE(HAVE_DB_185_H)
 	DBINC="-I$withval/include"
 	DBLIB="-L$withval/lib -ldb"
      else
         AC_ERROR(db_185.h or libdb.a not found in $withval or not configured with --enable-compat185)
      fi
      ;;
   esac ],
 [ for dir in ${prefix}/BerkeleyDB.3.1 ${prefix}/BerkeleyDB.3.0 \
 	     ${prefix}/BerkeleyDB ${prefix}/db ${prefix}; do
     if test -f ${dir}/include/db_185.h; then
        AC_DEFINE(HAVE_DB_185_H)
        DBINC="-I${dir}/include"
        DBLIB="-L${dir}/lib -ldb"
        have_db=yes
        break
     elif test -f ${dir}/include/db.h; then
        AC_DEFINE(HAVE_DB_H)
        DBINC="-I${dir}/include"
        DBLIB="-L${dir}/lib -ldb"
        have_db=yes
        break
     fi
   done
   if test "x$have_db" = "x"; then
      if test -f /usr/include/db2/db_185.h; then
 	AC_DEFINE(HAVE_DB_185_H)
 	DBINC="-I/usr/include/db2"
 	DBLIB="-ldb2"
 	have_db=yes
      elif test -f /usr/include/db_185.h; then
         AC_DEFINE(HAVE_DB_185_H)
         DBLIB="-ldb"
         have_db=yes
      elif test -f /usr/include/db.h; then
         AC_DEFINE(HAVE_DB_H)
         have_db=yes
      fi
   fi
   if test "x$have_db" = "x"; then
         AC_ERROR(Berkeley DB with 1.85 compatibility not found)
   fi
   AC_MSG_RESULT(yes) ]
 )
 AC_SUBST(DBINC)
 AC_SUBST(DBLIB)

 dnl Checks for libpcap
 AC_MSG_CHECKING(for libpcap)
 AC_ARG_WITH(libpcap,
 [  --with-libpcap=DIR      use libpcap in DIR],
 [ case "$withval" in
   yes|no)
      AC_MSG_RESULT(no)
      ;;
   *)
      AC_MSG_RESULT($withval)
      if test -f $withval/pcap.h -a -f $withval/libpcap.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	PCAPINC="-I$withval -I$withval/bpf"
 	PCAPLIB="-L$withval -lpcap"
      elif test -f $withval/include/pcap.h -a \
 	       -f $withval/include/net/bpf.h -a \
 	       -f $withval/lib/libpcap.a; then
 	owd=`pwd`
 	if cd $withval; then withval=`pwd`; cd $owd; fi
 	PCAPINC="-I$withval/include"
 	PCAPLIB="-L$withval/lib -lpcap"
      else
         AC_ERROR(pcap.h, net/bpf.h, or libpcap.a not found in $withval)
      fi
      ;;
   esac ],
 [ if test -f ${prefix}/include/pcap.h; then
      PCAPINC="-I${prefix}/include"
      PCAPLIB="-L${prefix}/lib -lpcap"
   elif test -f /usr/include/pcap/pcap.h; then
      PCAPINC="-I/usr/include/pcap"
      PCAPLIB="-lpcap"
   elif test -f /usr/include/pcap.h; then
      PCAPLIB="-lpcap"
   else
      AC_MSG_RESULT(no)
      AC_ERROR(libpcap not found)
   fi
   AC_MSG_RESULT(yes) ]
 )
 AC_SUBST(PCAPINC)
 AC_SUBST(PCAPLIB)

 dnl Checks for libnet
 AC_MSG_CHECKING(for libnet)
 AC_ARG_WITH(libnet,
 [  --with-libnet=DIR       use libnet in DIR],
 [ case "$withval" in
   yes|no)
      AC_MSG_RESULT(no)
      ;;
   *)
      AC_MSG_RESULT($withval)
      if test -f $withval/include/libnet.h -a -f $withval/lib/libnet.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	if test -f $withval/bin/libnet-config; then
 	   CFLAGS="$CFLAGS `$withval/bin/libnet-config --defines`"
 	elif test -f $withval/libnet-config; then
 	   CFLAGS="$CFLAGS `$withval/libnet-config --defines`"
 	else
 	   CFLAGS="$CFLAGS `libnet-config --defines`"
 	fi
 	LNETINC="-I$withval/include"
 	LNETLIB="-L$withval/lib -lnet"
      else
         AC_ERROR(libnet.h or libnet.a not found in $withval)
      fi
      ;;
   esac ],
 [ if test -f ${prefix}/include/libnet.h; then
      CFLAGS="$CFLAGS `${prefix}/bin/libnet-config --defines`"
      LNETINC="-I${prefix}/include"
      LNETLIB="-L${prefix}/lib -lnet"
   elif test -f /usr/include/libnet.h; then
      CFLAGS="$CFLAGS `libnet-config --defines`"
      LNETLIB="-lnet"
   else
      AC_MSG_RESULT(no)
      AC_ERROR(libnet not found)
   fi
   AC_MSG_RESULT(yes) ]
 )
 AC_SUBST(LNETINC)
 AC_SUBST(LNETLIB)

 dnl Checks for libnids
 AC_MSG_CHECKING(for libnids)
 AC_ARG_WITH(libnids,
 [  --with-libnids=DIR      use libnids in DIR],
 [ case "$withval" in
   yes|no)
      AC_MSG_RESULT(no)
      ;;
   *)
      AC_MSG_RESULT($withval)
      if test -f $withval/src/nids.h -a -f $withval/src/libnids.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	NIDSINC="-I$withval/src"
 	NIDSLIB="-L$withval/src -lnids"
      elif test -f $withval/include/nids.h -a -f $withval/lib/libnids.a; then
 	owd=`pwd`
 	if cd $withval; then withval=`pwd`; cd $owd; fi
 	NIDSINC="-I$withval/include"
 	NIDSLIB="-L$withval/lib -lnids"
      else
         AC_ERROR(nids.h or libnids.a not found in $withval)
      fi
      ;;
   esac ],
 [ if test -f ${prefix}/include/nids.h; then
      NIDSINC="-I${prefix}/include"
      NIDSLIB="-L${prefix}/lib -lnids"
   elif test -f /usr/include/nids.h; then
      NIDSLIB="-lnids"
   else
      AC_MSG_RESULT(no)
      AC_ERROR(libnids not found)
   fi
   AC_MSG_RESULT(yes) ]
 )
 save_cppflags="$CPPFLAGS"
 CPPFLAGS="$NIDSINC"
 AC_MSG_CHECKING(whether libnids version is good)
 AC_EGREP_HEADER(pcap_filter, nids.h, AC_MSG_RESULT(yes),
    [ AC_MSG_RESULT(no); AC_ERROR(libnids version 1.13 or greater required) ])
 CPPFLAGS="$save_cppflags"
 AC_SUBST(NIDSINC)
 AC_SUBST(NIDSLIB)

 dnl Checks for OpenSSL
 AC_MSG_CHECKING(for OpenSSL)
 AC_ARG_WITH(openssl,
 [  --with-openssl=DIR      use OpenSSL in DIR],
 [ case "$withval" in
   yes|no)
      AC_MSG_RESULT(no)
      ;;
   *)
      AC_MSG_RESULT($withval)
      if test -f $withval/include/openssl/ssl.h -a -f $withval/libssl.a; then
         owd=`pwd`
         if cd $withval; then withval=`pwd`; cd $owd; fi
 	SSLINC="-I$withval/include"
 	SSLLIB="-L$withval -lssl -lcrypto"
      elif test -f $withval/include/openssl/ssl.h -a \
 	       -f $withval/lib/libssl.a; then
 	owd=`pwd`
 	if cd $withval; then withval=`pwd`; cd $owd; fi
 	SSLINC="-I$withval/include"
 	SSLLIB="-L$withval/lib -lssl -lcrypto"
      else
         AC_ERROR(ssl.h or libssl.a not found in $withval)
      fi
      WEBMITM="webmitm"
      ;;
   esac ],
 [ if test -f ${prefix}/include/openssl/ssl.h; then
      SSLINC="-I${prefix}/include"
      SSLLIB="-L${prefix}/lib -lssl -lcrypto"
   elif test -f ${prefix}/ssl/include/openssl/ssl.h; then
      SSLINC="-I${prefix}/ssl/include"
      SSLLIB="-L${prefix}/ssl/lib -lssl -lcrypto"
   elif test -f /usr/include/openssl/ssl.h; then
      SSLLIB="-lssl -lcrypto"
   else
      AC_MSG_RESULT(no)
      AC_ERROR(OpenSSL not found)
   fi
   AC_MSG_RESULT(yes)
 ]
 )
 AC_SUBST(SSLINC)
 AC_SUBST(SSLLIB)

 AC_OUTPUT(Makefile)
	dnl configure.in
	dnl
	dnl Copyright (c) 2000 Dug Song <dugsong@monkey.org>
	dnl
	dnl $Id: configure.in,v 1.27 2000/12/20 16:31:21 dugsong Exp $

	AC_INIT(dsniff.c)

	AC_CONFIG_HEADER(config.h)

	dnl Initialize prefix.
	if test "$prefix" = "NONE"; then
	prefix="/usr/local"
	fi

	dnl Checks for programs.
	AC_PROG_CC
	AC_PROG_INSTALL
	AC_PROG_RANLIB

	dnl Checks for header files.
	AC_PATH_XTRA
	AC_HEADER_STDC
	AC_CHECK_HEADERS(err.h fcntl.h sys/ioctl.h sys/queue.h unistd.h libgen.h net/if_tun.h)
	dnl XXX - Solaris sux.
	AC_MSG_CHECKING(for MIN and MAX in sys/param.h)
	AC_EGREP_CPP(yes, [
	#include <sys/param.h>
	#if defined(MAX) && defined(MIN)
	yes
	#endif
	],
	[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MINMAX) ],
	[ AC_MSG_RESULT(no) ]
	)

	dnl Checks for typedefs, structures, and compiler characteristics.
	AC_C_CONST
	AC_TYPE_SIZE_T
	AC_STRUCT_TM
	dnl XXX - Solaris sux.
	AC_CHECK_TYPE(u_int32_t, uint32_t)
	AC_CHECK_TYPE(u_int64_t, uint64_t)
	dnl XXX - Linux sux.
	AC_CHECK_TYPE(in_addr_t, u_int32_t)
	CFLAGS="$CFLAGS -D_BSD_SOURCE"

	dnl Checks for library functions.
	AC_PROG_GCC_TRADITIONAL
	AC_FUNC_MEMCMP
	AC_TYPE_SIGNAL
	AC_FUNC_STRFTIME
	AC_CHECK_FUNCS(gethostname socket strdup strstr)
	AC_CHECK_LIB(rpcsvc, xdr_fhstatus)
	dnl XXX - Solaris sux.
	AC_CHECK_LIB(socket, socket)
	AC_CHECK_LIB(nsl, gethostbyname)
	dnl XXX - feh, everything except OpenBSD sux.
	AC_CHECK_LIB(resolv, dn_expand)
	AC_REPLACE_FUNCS(dirname strlcpy strlcat strsep)
	neederr=no
	AC_CHECK_FUNCS(warnx, , [neederr=yes])
	if test $neederr = yes; then
	LIBOBJS="$LIBOBJS err.o"
	fi
	needethers=no
	AC_CHECK_FUNCS(ether_ntoa, , [needethers=yes])
	if test $needethers = yes; then
	LIBOBJS="$LIBOBJS ethers.o"
	fi

	dnl Checks for BSD tunnel device
	dnl if test "x$ac_cv_header_net_if_tun_h" = "xyes"; then
	dnl TCPHIJACK="tcphijack"
	dnl fi
	AC_SUBST(TCPHIJACK)

	dnl Checks for X11
	if test "x$no_x" = "x"; then
	WEBSPY="webspy"; AC_SUBST(WEBSPY)
	fi

	dnl Checks for Berkeley DB
	AC_MSG_CHECKING(for Berkeley DB with 1.85 compatibility)
	AC_ARG_WITH(db,
	[ --with-db=DIR use Berkeley DB (with --enable-compat185) in DIR],
	[ case "$withval" in
	yes\|no)
	AC_MSG_RESULT(no)
	;;
	*)
	AC_MSG_RESULT($withval)
	if test -f $withval/build_unix/db_185.h -a \
	-f $withval/build_unix/libdb.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	AC_DEFINE(HAVE_DB_185_H)
	DBINC="-I$withval/build_unix"
	DBLIB="-L$withval/build_unix -ldb"
	elif test -f $withval/dist/db_185.h -a \
	-f $withval/dist/libdb.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	AC_DEFINE(HAVE_DB_185_H)
	DBINC="-I$withval/dist"
	DBLIB="-L$withval/dist -ldb"
	elif test -f $withval/include/db_185.h -a \
	-f $withval/lib/libdb.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	AC_DEFINE(HAVE_DB_185_H)
	DBINC="-I$withval/include"
	DBLIB="-L$withval/lib -ldb"
	else
	AC_ERROR(db_185.h or libdb.a not found in $withval or not configured with --enable-compat185)
	fi
	;;
	esac ],
	[ for dir in ${prefix}/BerkeleyDB.3.1 ${prefix}/BerkeleyDB.3.0 \
	${prefix}/BerkeleyDB ${prefix}/db ${prefix}; do
	if test -f ${dir}/include/db_185.h; then
	AC_DEFINE(HAVE_DB_185_H)
	DBINC="-I${dir}/include"
	DBLIB="-L${dir}/lib -ldb"
	have_db=yes
	break
	elif test -f ${dir}/include/db.h; then
	AC_DEFINE(HAVE_DB_H)
	DBINC="-I${dir}/include"
	DBLIB="-L${dir}/lib -ldb"
	have_db=yes
	break
	fi
	done
	if test "x$have_db" = "x"; then
	if test -f /usr/include/db2/db_185.h; then
	AC_DEFINE(HAVE_DB_185_H)
	DBINC="-I/usr/include/db2"
	DBLIB="-ldb2"
	have_db=yes
	elif test -f /usr/include/db_185.h; then
	AC_DEFINE(HAVE_DB_185_H)
	DBLIB="-ldb"
	have_db=yes
	elif test -f /usr/include/db.h; then
	AC_DEFINE(HAVE_DB_H)
	have_db=yes
	fi
	fi
	if test "x$have_db" = "x"; then
	AC_ERROR(Berkeley DB with 1.85 compatibility not found)
	fi
	AC_MSG_RESULT(yes) ]
	)
	AC_SUBST(DBINC)
	AC_SUBST(DBLIB)

	dnl Checks for libpcap
	AC_MSG_CHECKING(for libpcap)
	AC_ARG_WITH(libpcap,
	[ --with-libpcap=DIR use libpcap in DIR],
	[ case "$withval" in
	yes\|no)
	AC_MSG_RESULT(no)
	;;
	*)
	AC_MSG_RESULT($withval)
	if test -f $withval/pcap.h -a -f $withval/libpcap.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	PCAPINC="-I$withval -I$withval/bpf"
	PCAPLIB="-L$withval -lpcap"
	elif test -f $withval/include/pcap.h -a \
	-f $withval/include/net/bpf.h -a \
	-f $withval/lib/libpcap.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	PCAPINC="-I$withval/include"
	PCAPLIB="-L$withval/lib -lpcap"
	else
	AC_ERROR(pcap.h, net/bpf.h, or libpcap.a not found in $withval)
	fi
	;;
	esac ],
	[ if test -f ${prefix}/include/pcap.h; then
	PCAPINC="-I${prefix}/include"
	PCAPLIB="-L${prefix}/lib -lpcap"
	elif test -f /usr/include/pcap/pcap.h; then
	PCAPINC="-I/usr/include/pcap"
	PCAPLIB="-lpcap"
	elif test -f /usr/include/pcap.h; then
	PCAPLIB="-lpcap"
	else
	AC_MSG_RESULT(no)
	AC_ERROR(libpcap not found)
	fi
	AC_MSG_RESULT(yes) ]
	)
	AC_SUBST(PCAPINC)
	AC_SUBST(PCAPLIB)

	dnl Checks for libnet
	AC_MSG_CHECKING(for libnet)
	AC_ARG_WITH(libnet,
	[ --with-libnet=DIR use libnet in DIR],
	[ case "$withval" in
	yes\|no)
	AC_MSG_RESULT(no)
	;;
	*)
	AC_MSG_RESULT($withval)
	if test -f $withval/include/libnet.h -a -f $withval/lib/libnet.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	if test -f $withval/bin/libnet-config; then
	CFLAGS="$CFLAGS `$withval/bin/libnet-config --defines`"
	elif test -f $withval/libnet-config; then
	CFLAGS="$CFLAGS `$withval/libnet-config --defines`"
	else
	CFLAGS="$CFLAGS `libnet-config --defines`"
	fi
	LNETINC="-I$withval/include"
	LNETLIB="-L$withval/lib -lnet"
	else
	AC_ERROR(libnet.h or libnet.a not found in $withval)
	fi
	;;
	esac ],
	[ if test -f ${prefix}/include/libnet.h; then
	CFLAGS="$CFLAGS `${prefix}/bin/libnet-config --defines`"
	LNETINC="-I${prefix}/include"
	LNETLIB="-L${prefix}/lib -lnet"
	elif test -f /usr/include/libnet.h; then
	CFLAGS="$CFLAGS `libnet-config --defines`"
	LNETLIB="-lnet"
	else
	AC_MSG_RESULT(no)
	AC_ERROR(libnet not found)
	fi
	AC_MSG_RESULT(yes) ]
	)
	AC_SUBST(LNETINC)
	AC_SUBST(LNETLIB)

	dnl Checks for libnids
	AC_MSG_CHECKING(for libnids)
	AC_ARG_WITH(libnids,
	[ --with-libnids=DIR use libnids in DIR],
	[ case "$withval" in
	yes\|no)
	AC_MSG_RESULT(no)
	;;
	*)
	AC_MSG_RESULT($withval)
	if test -f $withval/src/nids.h -a -f $withval/src/libnids.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	NIDSINC="-I$withval/src"
	NIDSLIB="-L$withval/src -lnids"
	elif test -f $withval/include/nids.h -a -f $withval/lib/libnids.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	NIDSINC="-I$withval/include"
	NIDSLIB="-L$withval/lib -lnids"
	else
	AC_ERROR(nids.h or libnids.a not found in $withval)
	fi
	;;
	esac ],
	[ if test -f ${prefix}/include/nids.h; then
	NIDSINC="-I${prefix}/include"
	NIDSLIB="-L${prefix}/lib -lnids"
	elif test -f /usr/include/nids.h; then
	NIDSLIB="-lnids"
	else
	AC_MSG_RESULT(no)
	AC_ERROR(libnids not found)
	fi
	AC_MSG_RESULT(yes) ]
	)
	save_cppflags="$CPPFLAGS"
	CPPFLAGS="$NIDSINC"
	AC_MSG_CHECKING(whether libnids version is good)
	AC_EGREP_HEADER(pcap_filter, nids.h, AC_MSG_RESULT(yes),
	[ AC_MSG_RESULT(no); AC_ERROR(libnids version 1.13 or greater required) ])
	CPPFLAGS="$save_cppflags"
	AC_SUBST(NIDSINC)
	AC_SUBST(NIDSLIB)

	dnl Checks for OpenSSL
	AC_MSG_CHECKING(for OpenSSL)
	AC_ARG_WITH(openssl,
	[ --with-openssl=DIR use OpenSSL in DIR],
	[ case "$withval" in
	yes\|no)
	AC_MSG_RESULT(no)
	;;
	*)
	AC_MSG_RESULT($withval)
	if test -f $withval/include/openssl/ssl.h -a -f $withval/libssl.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	SSLINC="-I$withval/include"
	SSLLIB="-L$withval -lssl -lcrypto"
	elif test -f $withval/include/openssl/ssl.h -a \
	-f $withval/lib/libssl.a; then
	owd=`pwd`
	if cd $withval; then withval=`pwd`; cd $owd; fi
	SSLINC="-I$withval/include"
	SSLLIB="-L$withval/lib -lssl -lcrypto"
	else
	AC_ERROR(ssl.h or libssl.a not found in $withval)
	fi
	WEBMITM="webmitm"
	;;
	esac ],
	[ if test -f ${prefix}/include/openssl/ssl.h; then
	SSLINC="-I${prefix}/include"
	SSLLIB="-L${prefix}/lib -lssl -lcrypto"
	elif test -f ${prefix}/ssl/include/openssl/ssl.h; then
	SSLINC="-I${prefix}/ssl/include"
	SSLLIB="-L${prefix}/ssl/lib -lssl -lcrypto"
	elif test -f /usr/include/openssl/ssl.h; then
	SSLLIB="-lssl -lcrypto"
	else
	AC_MSG_RESULT(no)
	AC_ERROR(OpenSSL not found)
	fi
	AC_MSG_RESULT(yes)
	]
	)
	AC_SUBST(SSLINC)
	AC_SUBST(SSLLIB)

	AC_OUTPUT(Makefile)