diff --git a/scripts/configure b/scripts/configure
index e3c0229..80d66e5 100755
--- a/scripts/configure
+++ b/scripts/configure
@@ -638,6 +638,7 @@
 docdir
 oldincludedir
 includedir
+runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -722,6 +723,7 @@
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -974,6 +976,15 @@
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1111,7 +1122,7 @@
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir
+		libdir localedir mandir runstatedir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1264,6 +1275,7 @@
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -1840,7 +1852,7 @@
   $as_echo_n "(cached) " >&6
 else
 
-	for am_cv_pathless_PYTHON in python python2 python3 python3.3 python3.2 python3.1 python3.0 python2.7  python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
+	for am_cv_pathless_PYTHON in python python2 python3  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3  python3.2 python3.1 python3.0  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1  python2.0 none; do
 	  test "$am_cv_pathless_PYTHON" = none && break
 	  prog="import sys
 # split strings by '.' and convert to numeric.  Append some zeros
@@ -2063,28 +2075,33 @@
 
     if test -z $PYTHON;
     then
-        PYTHON="python"
+        if test -z "";
+        then
+            PYTHON="python3"
+        else
+            PYTHON=""
+        fi
     fi
     PYTHON_NAME=`basename $PYTHON`
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking $PYTHON_NAME module: distutils" >&5
 $as_echo_n "checking $PYTHON_NAME module: distutils... " >&6; }
-	$PYTHON -c "import distutils" 2>/dev/null
-	if test $? -eq 0;
-	then
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+    $PYTHON -c "import distutils" 2>/dev/null
+    if test $? -eq 0;
+    then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-		eval HAVE_PYMOD_DISTUTILS=yes
-	else
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+        eval HAVE_PYMOD_DISTUTILS=yes
+    else
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-		eval HAVE_PYMOD_DISTUTILS=no
-		#
-		if test -n ""
-		then
-			as_fn_error $? "failed to find required module distutils" "$LINENO" 5
-			exit 1
-		fi
-	fi
+        eval HAVE_PYMOD_DISTUTILS=no
+        #
+        if test -n ""
+        then
+            as_fn_error $? "failed to find required module distutils" "$LINENO" 5
+            exit 1
+        fi
+    fi
 
 
 # Check for Mac OS X gsed vs. sed