This once again does NOT compile. I've done work on macros; they don't work yet..

unit-tests/let.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+result=0
+
+expected='11'
+actual=`echo "(let ((a . 5)(b . 6)) (+ a b))" | target/psse | tail -1`
+echo -n "$0: let with two bindings, one form in body... "
+
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '$expected', got '$actual'"
+    result=`echo "${result} + 1" | bc`
+fi
+
+expected='1'
+actual=`echo "(let ((a . 5)(b . 6)) (+ a b) (- b a))" | target/psse | tail -1`
+echo -n "$0: let with two bindings, two forms in body..."
+
+if [ "${expected}" = "${actual}" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '$expected', got '$actual'"
+    result=`echo "${result} + 1" | bc`
+fi
+
+exit ${result}