* This was a script relying on a working /etc/profile, which may not be
there
* Instead, use GNU which, available as an haikuport recipe
* Since the command does not seem to be needed for Haiku to run (and
also because I don't know how to do it), GNU which isn't in the default
install.
* Typing "which" in a terminal still works, as that uses an alias
defined directly in /etc/profile.