Python 3.4+: use os.set_inheritable + os.set_blocking in place of unreadable fcntl calls #1

	name: illumos
	on:
	push:
	branches:
	- master
	paths:
	- '*.py'
	- 'tox.ini'
	- '.github/workflows/illumos.yml'
	pull_request:
	branches:
	- master
	permissions:
	# BOLD WARNING: do not add permissions, this workflow executes remote code
	contents: read
	env:
	FORCE_COLOR: 1
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	omnios:
	name: illumos
	timeout-minutes: 20
	runs-on: ubuntu-latest
	strategy:
	fail-fast: true
	steps:
	- uses: actions/checkout@v4
	- uses: vmactions/omnios-vm@v1
	with:
	# need gcc: compile greenlet from source
	# autoconf must pretend inotify unavail: libev FTBFS
	# /tmp/.nginx must exist because nginx will not create configured tmp
	prepare: \|
	pkg install pip-311 python-311 sqlite-3 nginx gcc13
	usesh: true
	copyback: false
	run: \|
	cat /etc/release \
	&& uname -a \
	&& python3 --version \
	&& openssl version \
	&& pkg info nginx \
	&& gcc -dM -E - </dev/null \
	&& ac_cv_header_sys_inotify_h=no ac_cv_func_inotify_init=no python3 -m pip install gevent \
	&& mkdir -p /tmp/.nginx \
	&& python3 -m pip install tox \
	&& python3 -m tox --version \
	&& python3 -m tox -e run-module \
	&& python3 -m tox -e run-entrypoint \
	&& python3 -m tox -e py

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