Don't free-up file-descriptor of stdin/stdout/stderr #4

	name: Mac OS X

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	# When a PR is updated, cancel the jobs from the previous version. Merges
	# do not define head_ref, so use run_id to never cancel those jobs.
	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	env:
	# 20M measured cache size (August 2023).
	CCACHE_SIZE: "25M"

	jobs:
	macos:
	runs-on: macos-latest
	steps:
	- name: Clone picolibc
	uses: actions/checkout@v4

	- name: Setup python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Install meson and ninja
	run: pip install meson ninja

	- name: ccache
	uses: hendrikmuhs/[email protected]
	with:
	key: compilation-${{ runner.os }}-${{ github.job }}
	max-size: ${{ env.CCACHE_SIZE }}

	- name: MacOS tests
	run: ./.github/do-arm

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