- @(cd ..; (which tclsh >/dev/null && tclsh tests/test_helper.tcl --tags "${TAGS}" --file "${FILE}") || echo "You need to install Tcl in order to run tests.")
+ @(cd ..; (which tclsh8.5 >/dev/null && tclsh tests/test_helper.tcl --tags "${TAGS}" --file "${FILE}") || echo "You need to install Tcl (tclsh8.5) in order to run tests.")