update README #43

	name: pg_quack Build and Test
	on:
	push:
	pull_request:
	jobs:
	build-and-test:
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	version: [REL_16_STABLE]
	runs-on: ${{ matrix.os }}

	steps:
	- name: Test details
	run: echo Build and test pg_quack on ${{ matrix.os }} with PostgreSQL ${{ matrix.version }} branch

	- name: Checkout and build PostgreSQL code
	run: \|
	sudo apt-get update -qq
	sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
	sudo apt-get install -y build-essential libreadline-dev zlib1g-dev flex bison libxml2-dev libxslt-dev libssl-dev libxml2-utils xsltproc ccache pkg-config libc++-dev libc++abi-dev libglib2.0-dev libtinfo5 cmake libstdc++-12-dev
	rm -rf postgres
	git clone --branch ${{ matrix.version }} --single-branch --depth 1 https://github.com/postgres/postgres.git
	pushd postgres
	git branch
	./configure --prefix=$PWD/inst/ --enable-cassert --enable-debug --with-openssl
	make -j4 install

	- name: Start Postgres
	run: \|
	pushd postgres
	cd inst/bin
	./initdb -D data
	./pg_ctl -D data -l logfile start
	popd

	- name: Checkout pg_quack extension code
	uses: actions/checkout@v4
	with:
	path: quack

	- name: Build and test pg_quack extension
	id: regression-tests
	run: \|
	export PATH="${PWD}/postgres/inst/bin:$PATH"
	pushd quack
	git submodule update --init --recursive
	make
	make install
	make installcheck
	popd

	- name: Print regression.diffs if regression tests failed
	if: failure() && steps.regression-tests.outcome != 'success'
	run: \|
	cat quack/regression.diffs

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