adapt to coq/coq#18730 #26

	# Based on a similar workflow for the mit-plv/bedrock2 repo, which is based on mit-plv/rupicola, which is based on mit-plv/fiat-crypto

	name: Coq

	on:
	push:
	pull_request:

	jobs:
	build:

	runs-on: ubuntu-20.04

	strategy:
	matrix:
	env:
	- { COQ_VERSION: "8.16.0", COQ_PACKAGE: "coq-8.16.0 libcoq-8.16.0-ocaml-dev", PPA: "ppa:jgross-h/many-coq-versions-ocaml-4-11" }
	- { COQ_VERSION: "master", COQ_PACKAGE: "coq libcoq-core-ocaml-dev" , PPA: "ppa:jgross-h/coq-master-daily" }
	fail-fast: false

	env: ${{ matrix.env }}

	steps:
	- name: install Coq
	run: \|
	sudo sed -i 's/azure\.//' /etc/apt/sources.list
	if [ ! -z "$PPA" ]; then sudo add-apt-repository "$PPA" -y; fi
	sudo apt-get -o Acquire::Retries=30 update -q
	sudo apt-get -o Acquire::Retries=30 install ocaml-findlib $COQ_PACKAGE -y --allow-unauthenticated
	- name: echo build params
	run: \|
	echo "::group::lscpu"
	lscpu
	echo "::endgroup::"
	echo "::group::uname -a"
	uname -a
	echo "::endgroup::"
	echo "::group::lsb_release -a"
	lsb_release -a
	echo "::endgroup::"
	echo "::group::gcc -v"
	gcc -v
	echo "::endgroup::"
	echo "::group::ocamlc -config"
	ocamlc -config
	echo "::endgroup::"
	echo "::group::coqc --config"
	coqc --config
	echo "::endgroup::"
	echo "::group::coqc --version"
	coqc --version
	echo "::endgroup::"
	echo "::group::echo \| coqtop"
	echo \| coqtop
	echo "::endgroup::"
	- uses: actions/checkout@v3
	- name: re-enable skipped proofs so that they are checked
	run: ./skip_proof.sh -r
	- name: make
	run: TIMED=1 make

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