mingw/mingw-packages/mingw-w64-ocaml/ocaml-x86_64.install

post_install() {
  cd /mingw64/lib/ocaml
  mv ld.conf ld.conf.old
  cat ld.conf.old | while read line; do cygpath -m $line >> ld.conf; done
  rm ld.conf.old
}

post_upgrade() {
  post_install
}