Release 3.1 #35

	name: build
	on:
	push:
	branches: [ master, develop ]
	pull_request:
	branches: [ master, develop ]
	jobs:
	build:
	name: ${{matrix.config.name}}
	runs-on: ${{matrix.config.os}}
	strategy:
	fail-fast: false
	matrix:
	config:
	- {
	name: "Ubuntu-18.04", artifact: "uduntu-18.04.tar.xz",
	os: ubuntu-18.04,
	build_type: "Release", cc: "gcc", cxx: "g++",
	repo: "deb https://apt.kitware.com/ubuntu/ bionic main"
	}
	- {
	name: "Ubuntu-20.04", artifact: "uduntu-20.04.tar.xz",
	os: ubuntu-20.04,
	build_type: "Release", cc: "gcc", cxx: "g++",
	repo: "deb https://apt.kitware.com/ubuntu/ focal main"
	}
	steps:
	- name: Checkout repository and submodules
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	submodules: recursive

	- name: Import GPG key
	run: \|
	wget -O gpg_key.txt https://apt.kitware.com/keys/kitware-archive-latest.asc
	sudo apt-key add gpg_key.txt

	- name: Add repository
	run: \|
	sudo apt-add-repository '${{matrix.config.repo}}'
	sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test

	- name: Install dependencies
	run: \|
	sudo apt update
	sudo apt install -y git g++-8 cmake libssl-dev libgmp-dev zlib1g-dev
	sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 800 --slave /usr/bin/g++ g++ /usr/bin/g++-8

	- name: Install boost
	run: \|
	wget https://boostorg.jfrog.io/artifactory/main/release/1.67.0/source/boost_1_67_0.tar.gz
	tar -xvzf boost_1_67_0.tar.gz
	cd boost_1_67_0
	./bootstrap.sh
	sudo ./b2 install -j 2
	cd ..

	- name: Build project
	run: \|
	mkdir -p build
	cd build
	cmake ..
	make

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