diff --git a/aclocal.m4 b/aclocal.m4
index 838879235..19765c019 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,7 +1,7 @@
-# generated automatically by aclocal 1.10.1 -*- Autoconf -*-
+# generated automatically by aclocal 1.11 -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -11,7 +11,7 @@
 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 # PARTICULAR PURPOSE.
 
-# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
 # Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
@@ -42,13 +42,11 @@
 # numbers and dots only.
 AC_DEFUN([AM_PATH_PYTHON],
  [
-  dnl Find a Python interpreter.  Python versions prior to 1.5 are not
-  dnl supported because the default installation locations changed from
-  dnl $prefix/lib/site-python in 1.4 to $prefix/lib/python1.5/site-packages
-  dnl in 1.5.
+  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
+  dnl supported. (2.0 was released on October 16, 2000).
   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
-                    [python python2 python2.5 python2.4 python2.3 python2.2 dnl
-python2.1 python2.0 python1.6 python1.5])
+                    [python python2 python3 python3.0 python2.5 python2.4 python2.3 python2.2 dnl
+python2.1 python2.0])
 
   m4_if([$1],[],[
     dnl No version check is needed.
@@ -95,7 +93,7 @@ python2.1 python2.0 python1.6 python1.5])
   dnl library.
 
   AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
-    [am_cv_python_version=`$PYTHON -c "import sys; print sys.version[[:3]]"`])
+    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
   AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
 
   dnl Use the values of $prefix and $exec_prefix for the corresponding
@@ -110,7 +108,7 @@ python2.1 python2.0 python1.6 python1.5])
   dnl to know which OS platform Python thinks this is.
 
   AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
-    [am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`])
+    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
   AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
 
 
@@ -125,8 +123,21 @@ python2.1 python2.0 python1.6 python1.5])
   dnl doesn't work.
   AC_CACHE_CHECK([for $am_display_PYTHON script directory],
     [am_cv_python_pythondir],
-    [am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
-     echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`])
+    [if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(0,0,prefix='$am_py_prefix'))" 2>/dev/null ||
+     echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     esac
+    ])
   AC_SUBST([pythondir], [$am_cv_python_pythondir])
 
   dnl pkgpythondir -- $PACKAGE directory under pythondir.  Was
@@ -142,8 +153,21 @@ python2.1 python2.0 python1.6 python1.5])
   dnl doesn't work.
   AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
     [am_cv_python_pyexecdir],
-    [am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
-     echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`])
+    [if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(1,0,prefix='$am_py_exec_prefix'))" 2>/dev/null ||
+     echo "$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     esac
+    ])
   AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
 
   dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
@@ -163,15 +187,16 @@ python2.1 python2.0 python1.6 python1.5])
 # Run ACTION-IF-FALSE otherwise.
 # This test uses sys.hexversion instead of the string equivalent (first
 # word of sys.version), in order to cope with versions such as 2.2c1.
-# hexversion has been introduced in Python 1.5.2; it's probably not
-# worth to support older versions (1.5.1 was released on October 31, 1998).
+# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
 AC_DEFUN([AM_PYTHON_CHECK_VERSION],
- [prog="import sys, string
+ [prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
 # because we need at least 4 digits for the hex conversion.
-minver = map(int, string.split('$2', '.')) + [[0, 0, 0]]
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
 minverhex = 0
-for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[[i]]
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
 sys.exit(sys.hexversion < minverhex)"
   AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
 
diff --git a/configure b/configure
index 2be9f070e..0281a256f 100755
--- a/configure
+++ b/configure
@@ -1428,8 +1428,8 @@ Optional Packages:
   --with-libpcre=included Always use the version included with Nmap
   --with-libdnet=DIR      Use an existing (compiled) dnet lib from DIR/include
                           and DIR/lib. This is NOT RECOMMENDED because we have
-                          made many important fixes to libdnet, as described
-                          at
+                          made many important fixes to our included libdnet,
+                          as described at
                           http://nmap.org/svn/libdnet-stripped/NMAP_MODIFICATIONS
   --with-libdnet=included Use the libdnet version included with Nmap (default)
   --with-liblua=DIR       Use an existing (compiled) lua lib from DIR/include
@@ -5836,12 +5836,14 @@ if test "$with_ndiff" != "no"; then
       # If the user set $PYTHON, use it and don't search something else.
       { $as_echo "$as_me:$LINENO: checking whether $PYTHON version >= 2.4" >&5
 $as_echo_n "checking whether $PYTHON version >= 2.4... " >&6; }
-      prog="import sys, string
+      prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
 # because we need at least 4 digits for the hex conversion.
-minver = map(int, string.split('2.4', '.')) + [0, 0, 0]
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
 minverhex = 0
-for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[i]
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
 sys.exit(sys.hexversion < minverhex)"
   if { echo "$as_me:$LINENO: $PYTHON -c "$prog"" >&5
    ($PYTHON -c "$prog") >&5 2>&5
@@ -5866,14 +5868,16 @@ if test "${am_cv_pathless_PYTHON+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
 
-	for am_cv_pathless_PYTHON in python python2 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5 none; do
+	for am_cv_pathless_PYTHON in python python2 python3 python3.0 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
 	  test "$am_cv_pathless_PYTHON" = none && break
-	  prog="import sys, string
+	  prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
 # because we need at least 4 digits for the hex conversion.
-minver = map(int, string.split('2.4', '.')) + [0, 0, 0]
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
 minverhex = 0
-for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[i]
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
 sys.exit(sys.hexversion < minverhex)"
   if { echo "$as_me:$LINENO: $am_cv_pathless_PYTHON -c "$prog"" >&5
    ($am_cv_pathless_PYTHON -c "$prog") >&5 2>&5
@@ -5958,7 +5962,7 @@ $as_echo_n "checking for $am_display_PYTHON version... " >&6; }
 if test "${am_cv_python_version+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_version=`$PYTHON -c "import sys; print sys.version[:3]"`
+  am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[:3])"`
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_version" >&5
 $as_echo "$am_cv_python_version" >&6; }
@@ -5977,7 +5981,7 @@ $as_echo_n "checking for $am_display_PYTHON platform... " >&6; }
 if test "${am_cv_python_platform+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`
+  am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_platform" >&5
 $as_echo "$am_cv_python_platform" >&6; }
@@ -5991,8 +5995,21 @@ $as_echo_n "checking for $am_display_PYTHON script directory... " >&6; }
 if test "${am_cv_python_pythondir+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
+  if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(0,0,prefix='$am_py_prefix'))" 2>/dev/null ||
      echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     esac
+
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_pythondir" >&5
 $as_echo "$am_cv_python_pythondir" >&6; }
@@ -6008,8 +6025,21 @@ $as_echo_n "checking for $am_display_PYTHON extension module directory... " >&6;
 if test "${am_cv_python_pyexecdir+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
-     echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`
+  if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(1,0,prefix='$am_py_exec_prefix'))" 2>/dev/null ||
+     echo "$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     esac
+
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_pyexecdir" >&5
 $as_echo "$am_cv_python_pyexecdir" >&6; }
@@ -6060,12 +6090,14 @@ if test "$with_zenmap" != "no"; then
       # If the user set $PYTHON, use it and don't search something else.
       { $as_echo "$as_me:$LINENO: checking whether $PYTHON version >= 2.4" >&5
 $as_echo_n "checking whether $PYTHON version >= 2.4... " >&6; }
-      prog="import sys, string
+      prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
 # because we need at least 4 digits for the hex conversion.
-minver = map(int, string.split('2.4', '.')) + [0, 0, 0]
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
 minverhex = 0
-for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[i]
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
 sys.exit(sys.hexversion < minverhex)"
   if { echo "$as_me:$LINENO: $PYTHON -c "$prog"" >&5
    ($PYTHON -c "$prog") >&5 2>&5
@@ -6090,14 +6122,16 @@ if test "${am_cv_pathless_PYTHON+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
 
-	for am_cv_pathless_PYTHON in python python2 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5 none; do
+	for am_cv_pathless_PYTHON in python python2 python3 python3.0 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
 	  test "$am_cv_pathless_PYTHON" = none && break
-	  prog="import sys, string
+	  prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
 # because we need at least 4 digits for the hex conversion.
-minver = map(int, string.split('2.4', '.')) + [0, 0, 0]
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
 minverhex = 0
-for i in xrange(0, 4): minverhex = (minverhex << 8) + minver[i]
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
 sys.exit(sys.hexversion < minverhex)"
   if { echo "$as_me:$LINENO: $am_cv_pathless_PYTHON -c "$prog"" >&5
    ($am_cv_pathless_PYTHON -c "$prog") >&5 2>&5
@@ -6182,7 +6216,7 @@ $as_echo_n "checking for $am_display_PYTHON version... " >&6; }
 if test "${am_cv_python_version+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_version=`$PYTHON -c "import sys; print sys.version[:3]"`
+  am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[:3])"`
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_version" >&5
 $as_echo "$am_cv_python_version" >&6; }
@@ -6201,7 +6235,7 @@ $as_echo_n "checking for $am_display_PYTHON platform... " >&6; }
 if test "${am_cv_python_platform+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_platform=`$PYTHON -c "import sys; print sys.platform"`
+  am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_platform" >&5
 $as_echo "$am_cv_python_platform" >&6; }
@@ -6215,8 +6249,21 @@ $as_echo_n "checking for $am_display_PYTHON script directory... " >&6; }
 if test "${am_cv_python_pythondir+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_pythondir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(0,0,prefix='$PYTHON_PREFIX')" 2>/dev/null ||
+  if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(0,0,prefix='$am_py_prefix'))" 2>/dev/null ||
      echo "$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     esac
+
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_pythondir" >&5
 $as_echo "$am_cv_python_pythondir" >&6; }
@@ -6232,8 +6279,21 @@ $as_echo_n "checking for $am_display_PYTHON extension module directory... " >&6;
 if test "${am_cv_python_pyexecdir+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  am_cv_python_pyexecdir=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_lib(1,0,prefix='$PYTHON_EXEC_PREFIX')" 2>/dev/null ||
-     echo "${PYTHON_EXEC_PREFIX}/lib/python${PYTHON_VERSION}/site-packages"`
+  if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "import sys; from distutils import sysconfig; sys.stdout.write(sysconfig.get_python_lib(1,0,prefix='$am_py_exec_prefix'))" 2>/dev/null ||
+     echo "$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages"`
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     esac
+
 fi
 { $as_echo "$as_me:$LINENO: result: $am_cv_python_pyexecdir" >&5
 $as_echo "$am_cv_python_pyexecdir" >&6; }