Modernized CMake and added Boost::headers dependency #15

	name: build

	on:
	push:
	pull_request:

	jobs:
	build:
	name: ${{ matrix.config.name }}
	runs-on: ${{ matrix.config.os }}
	strategy:
	fail-fast: false
	matrix:
	config:
	- {
	name: "windows MinGW",
	os: windows-latest,
	build_type: "Debug",
	cxx: "g++",
	generators: "Ninja"
	}
	- {
	name: "ubuntu g++",
	os: ubuntu-latest,
	build_type: "Debug",
	cxx: "g++",
	generators: "Ninja"
	}
	- {
	name: "macos clang++",
	os: macos-latest,
	build_type: "Debug",
	cxx: "clang++",
	generators: "Ninja"
	}

	steps:
	- uses: actions/checkout@v2

	- name: Install dependencies on windows
	if: startsWith(matrix.config.os, 'windows')
	run: \|
	choco install ninja cmake
	ninja --version
	cmake --version

	- name: Install dependencies on ubuntu
	if: startsWith(matrix.config.name, 'ubuntu')
	run: \|
	sudo apt-get update
	sudo apt-get install ninja-build cmake
	ninja --version
	cmake --version
	gcc --version

	- name: Install dependencies on macos
	if: startsWith(matrix.config.os, 'macos')
	run: \|
	brew install cmake ninja
	ninja --version
	cmake --version

	- name: Configure
	shell: bash
	run: \|
	mkdir build
	cmake \
	-S . \
	-B . \
	-DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} \
	-DCMAKE_CXX_COMPILER=${{ matrix.config.cxx }} \
	-DBOOST_DI_OPT_BUILD_TESTS=ON \
	-DBOOST_DI_OPT_BUILD_EXAMPLES=ON \
	-G "${{ matrix.config.generators }}"

	- name: Build
	shell: bash
	run: cmake --build . --config ${{ matrix.config.build_type }}

	- name: Test
	shell: bash
	run: ctest --output-on-failure .

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