--- tclconfig/pkgIndex.tcl.in.orig
+++ tclconfig/pkgIndex.tcl.in
@@ -1,2 +1,3 @@
+if {[package vcompare [info tclversion] @TCL_VERSION@] < 0} return
 package ifneeded @TCL_PACKAGE_NAME@ @TCL_PACKAGE_VERSION@ [list load [file join $dir .. @@PACKAGE_NAME@_LIB_FILE@] @PACKAGE_NAME@]
 set ::@TCL_PACKAGE_NAME@_library [file dirname [file normalize [info script]]]