Support `chown` in eio_posix and eio_linux #1218

	name: Main workflow

	on:
	pull_request:
	push:

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	os:
	- macos-latest
	ocaml-compiler:
	- 5.1.x
	local-packages:
	- eio eio_posix eio_main

	runs-on: ${{ matrix.os }}

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Use OCaml ${{ matrix.ocaml-compiler }}
	uses: ocaml/setup-ocaml@v2
	with:
	ocaml-compiler: ${{ matrix.ocaml-compiler }}
	opam-local-packages:
	opam-disable-sandboxing: true

	- run: opam --cli=2.1 pin -yn --with-version=dev .
	- run: opam install ${{ matrix.local-packages }} --deps-only --with-test
	- run: opam install ${{ matrix.local-packages }} --with-test
	windows:
	runs-on: windows-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set-up OCaml
	uses: ocaml/setup-ocaml@v2
	with:
	opam-pin: false
	opam-depext: false
	ocaml-compiler: ocaml.5.1.0,ocaml-option-mingw
	opam-repositories: \|
	dra27: https://github.com/dra27/opam-repository.git#windows-5.0
	normal: https://github.com/ocaml/opam-repository.git
	# --with-version=dev is not available, and --with-test also tries running tests for packages (like MDX) which fail...
	- run: \|
	opam pin -yn eio.dev .
	opam pin -yn eio_windows.dev .
	opam pin -yn eio_main.dev .
	opam install eio eio_windows eio_main --deps-only --with-test
	- run: opam exec -- dune build
	- run: opam exec -- dune runtest
	- run: opam exec -- dune exec -- ./examples/net/main.exe
	- run: opam exec -- dune exec -- ./examples/fs/main.exe
	docker:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Build the Docker image
	run: docker build .

Provide feedback