change from actions/checkout@v3 to actions/checkout@v4 #4

	name: FreeBSD

	on:
	push:
	paths-ignore:
	- 'README.md'
	- 'doc/**'
	pull_request:
	paths-ignore:
	- 'README.md'
	- 'doc/**'

	env:
	# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
	BUILD_TYPE: Debug

	jobs:

	setup-freeBSD:

	runs-on: ubuntu-latest
	# based on example from https://github.com/marketplace/actions/freebsd-vm
	steps:
	- uses: actions/checkout@v4
	- name: setup FreeBSD on github runner
	id: test
	uses: vmactions/freebsd-vm@v1
	with:
	usesh: true
	prepare: \|
	pkg install -y curl

	run: \|
	pwd
	ls -lah
	whoami
	env
	freebsd-version

	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: do CI on FreeBSD VM on github runner
	id: test
	uses: vmactions/freebsd-vm@v1
	with:
	usesh: true
	prepare: \|
	pkg install -y cmake
	pkg install -y openexr
	pkg install -y tiff
	run: \|
	mkdir build &&
	cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} &&
	cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}

	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: do CI on FreeBSD VM on github runner
	id: test
	uses: vmactions/freebsd-vm@v1
	with:
	usesh: true
	prepare: \|
	pkg install -y cmake
	pkg install -y openexr
	pkg install -y tiff
	run: \|
	mkdir build &&
	cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} &&
	cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} &&
	cd build &&
	ctest -V --output-on-failure

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