/narwhal/engines/rhino/bin/narwhal-rhino's cygpath test messes up on my mac

[meesern]

I'm running mac os-x 10.4.

In narwhal-rhino the line:
if [ "$(which cygpath 2>/dev/null)" ]; then

Evaluates true despite not having cygpath. This messes up the classpath and results in:
Exception in thread "main" java.lang.NoClassDefFoundError: org/mozilla/javascript/tools/shell/Main