fix tools build for mingw #373

	name: build-win

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	workflow_dispatch:
	inputs:
	ctestArgs:
	description: 'CTest arguments'

	env:
	BUILD_TYPE: Release

	jobs:
	build:
	runs-on: windows-2019

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true

	- name: Configure CMake
	working-directory: .\playground
	run: cmake -B build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -A x64 -DARCH=Win64

	# NOTE: The cmake build is forced to be single
	# configuration (either Debug or Release) but it
	# must be specified when running tests on Windows
	# because of MSVC solution oddities

	- name: Build
	working-directory: .\playground
	run: cmake --build build --config ${{env.BUILD_TYPE}}

	- name: Test
	working-directory: .\playground
	run: ctest --test-dir build ${{ github.event.inputs.ctestArgs }}

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