diff --git a/src/auto/configure b/src/auto/configure
index ca6b3eb..aa58dfa 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -4445,7 +4445,7 @@
   tclsh_name="$withval"; echo "$as_me:$LINENO: result: $tclsh_name" >&5
 echo "${ECHO_T}$tclsh_name" >&6
 else
-  tclsh_name="tclsh8.4"; echo "$as_me:$LINENO: result: no" >&5
+  tclsh_name="tclsh8.5"; echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi;
   # Extract the first word of "$tclsh_name", so it can be a program name with args.
@@ -4489,7 +4489,49 @@
 
 
 
-    if test "X$vi_cv_path_tcl" = "X" -a $tclsh_name = "tclsh8.4"; then
+    if test "X$vi_cv_path_tcl" = "X" -a $tclsh_name = "tclsh8.5"; then
+    tclsh_name="tclsh8.4"
+    # Extract the first word of "$tclsh_name", so it can be a program name with args.
+set dummy $tclsh_name; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_vi_cv_path_tcl+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $vi_cv_path_tcl in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_vi_cv_path_tcl="$vi_cv_path_tcl" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_vi_cv_path_tcl="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  ;;
+esac
+fi
+vi_cv_path_tcl=$ac_cv_path_vi_cv_path_tcl
+
+if test -n "$vi_cv_path_tcl"; then
+  echo "$as_me:$LINENO: result: $vi_cv_path_tcl" >&5
+echo "${ECHO_T}$vi_cv_path_tcl" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  fi
+  if test "X$vi_cv_path_tcl" = "X" -a $tclsh_name = "tclsh8.4"; then
     tclsh_name="tclsh8.2"
     # Extract the first word of "$tclsh_name", so it can be a program name with args.
 set dummy $tclsh_name; ac_word=$2
@@ -4649,6 +4691,7 @@
 echo $ECHO_N "checking for location of tclConfig.sh script... $ECHO_C" >&6
 	if test "x$MACOSX" != "xyes"; then
 	  tclcnf=`echo $tclinc | sed s/include/lib/g`
+	  tclcnf="$tclcnf `echo $tclinc | sed s/include/lib64/g`"
 	else
 	  	  tclcnf="/System/Library/Frameworks/Tcl.framework"
 	fi
@@ -4668,6 +4711,7 @@
 	  echo "$as_me:$LINENO: checking for Tcl library by myself" >&5
 echo $ECHO_N "checking for Tcl library by myself... $ECHO_C" >&6
 	  tcllib=`echo $tclinc | sed s/include/lib/g`
+	  tcllib="$tcllib `echo $tclinc | sed s/include/lib64/g`"
 	  for ext in .so .a ; do
 	    for ver in "" $tclver ; do
 	      for try in $tcllib ; do
diff --git a/src/configure.in b/src/configure.in
index ac995d6..5c8693b 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -759,15 +759,19 @@
 
 if test "$enable_tclinterp" = "yes"; then
 
-  dnl on FreeBSD tclsh is a silly script, look for tclsh8.[420]
+  dnl on FreeBSD tclsh is a silly script, look for tclsh8.[5420]
   AC_MSG_CHECKING(--with-tclsh argument)
   AC_ARG_WITH(tclsh, [  --with-tclsh=PATH       which tclsh to use (default: tclsh8.0)],
 	tclsh_name="$withval"; AC_MSG_RESULT($tclsh_name),
-	tclsh_name="tclsh8.4"; AC_MSG_RESULT(no))
+	tclsh_name="tclsh8.5"; AC_MSG_RESULT(no))
   AC_PATH_PROG(vi_cv_path_tcl, $tclsh_name)
   AC_SUBST(vi_cv_path_tcl)
 
-  dnl when no specific version specified, also try 8.2 and 8.0
+  dnl when no specific version specified, also try 8.4, 8.2 and 8.0
+  if test "X$vi_cv_path_tcl" = "X" -a $tclsh_name = "tclsh8.5"; then
+    tclsh_name="tclsh8.4"
+    AC_PATH_PROG(vi_cv_path_tcl, $tclsh_name)
+  fi
   if test "X$vi_cv_path_tcl" = "X" -a $tclsh_name = "tclsh8.4"; then
     tclsh_name="tclsh8.2"
     AC_PATH_PROG(vi_cv_path_tcl, $tclsh_name)
@@ -810,6 +814,7 @@
 	AC_MSG_CHECKING(for location of tclConfig.sh script)
 	if test "x$MACOSX" != "xyes"; then
 	  tclcnf=`echo $tclinc | sed s/include/lib/g`
+	  tclcnf="$tclcnf `echo $tclinc | sed s/include/lib64/g`"
 	else
 	  dnl For Mac OS X 10.3, use the OS-provided framework location
 	  tclcnf="/System/Library/Frameworks/Tcl.framework"
@@ -830,6 +835,7 @@
 	  AC_MSG_RESULT(<not found>)
 	  AC_MSG_CHECKING(for Tcl library by myself)
 	  tcllib=`echo $tclinc | sed s/include/lib/g`
+	  tcllib="$tcllib `echo $tclinc | sed s/include/lib64/g`"
 	  for ext in .so .a ; do
 	    for ver in "" $tclver ; do
 	      for try in $tcllib ; do
diff --git a/src/version.c b/src/version.c
index 09cbf73..e636520 100644
--- a/src/version.c
+++ b/src/version.c
@@ -667,6 +667,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    179,
+/**/
     178,
 /**/
     177,