diff --git a/m4/tcl.m4 b/m4/tcl.m4
index 5a0b6a454..819cd7dab 100644
--- a/m4/tcl.m4
+++ b/m4/tcl.m4
@@ -101,10 +101,6 @@ AC_DEFUN([TEA_PATH_TCLCONFIG], [
 	    AS_HELP_STRING([--with-tcl],
 		[directory containing tcl configuration (tclConfig.sh)]),
 	    [with_tclconfig="${withval}"])
-	AC_ARG_WITH(tcl8,
-	    AS_HELP_STRING([--with-tcl8],
-		[Compile for Tcl8 in Tcl9 environment]),
-	    [with_tcl8="${withval}"])
 	AC_MSG_CHECKING([for Tcl configuration])
 	AC_CACHE_VAL(ac_cv_c_tclconfig,[
 
@@ -190,18 +186,9 @@ AC_DEFUN([TEA_PATH_TCLCONFIG], [
 			`ls -d /usr/pkg/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
 			`ls -d /usr/lib64 2>/dev/null` \
-			`ls -d /usr/lib/tcl9.0 2>/dev/null` \
-			`ls -d /usr/lib/tcl8.7 2>/dev/null` \
-			`ls -d /usr/lib/tcl8.6 2>/dev/null` \
-			`ls -d /usr/lib/tcl8.5 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl9.0 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl8.7 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl8.6 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl8.5 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl/tcl9.0 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl/tcl8.7 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl/tcl8.6 2>/dev/null` \
-			`ls -d /usr/local/lib/tcl/tcl8.5 2>/dev/null` \
+            `ls -d /usr/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+            `ls -d /usr/local/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+            `ls -d /usr/local/lib/tcl/tcl[[8-9]].[[0-9]] 2>/dev/null` \
 			; do
 		    if test -f "$i/tclConfig.sh" ; then
 			ac_cv_c_tclconfig="`(cd $i; pwd)`"