Why can't pervasives.cmi be opened?

Question

Installed Ocaml on my cygwin machine but simple compiles fail. Permissions are fine as you can see by the interaction below. OCAMLLIB is right; What is wrong?

Answer 1

A possible solution is to run this command in cygwin:

export OCAMLLIB=C:\\OCaml\\lib

The clue came from this message thread.