valgrind support
diff --git a/regress/valgrind-unit.sh b/regress/valgrind-unit.sh
new file mode 100755
index 0000000..433cb06
--- /dev/null
+++ b/regress/valgrind-unit.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+UNIT_BINARY="$1"
+shift
+UNIT_ARGS="$@"
+
+test "x$OBJ" = "x" && OBJ=$PWD
+
+# This mostly replicates the logic in test-exec.sh for running the
+# regress tests under valgrind.
+VG_TEST=`basename $UNIT_BINARY`
+VG_LOG="$OBJ/valgrind-out/${VG_TEST}.%p"
+VG_OPTS="--track-origins=yes --leak-check=full --log-file=${VG_LOG}"
+VG_OPTS="$VG_OPTS --trace-children=yes"
+VG_PATH="valgrind"
+if [ "x$VALGRIND_PATH" != "x" ]; then
+ VG_PATH="$VALGRIND_PATH"
+fi
+
+exec $VG_PATH $VG_OPTS $UNIT_BINARY $UNIT_ARGS