Fix CI and Windows build #56

	name: CI
	on: [push, pull_request]

	jobs:
	build-linux:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	compiler: [gcc, clang]
	penger: ["", "PENGER=1"]
	steps:
	- uses: actions/checkout@v4
	- name: install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -qq libsdl2-dev
	- name: build sowon
	run: \|
	make ${{ matrix.penger }}
	env:
	CC: ${{ matrix.compiler }}
	build-macos:
	runs-on: macOS-latest
	strategy:
	matrix:
	penger: ["", "PENGER=1"]
	steps:
	- uses: actions/checkout@v4
	- name: install dependencies
	run: brew install sdl2 pkg-config
	- name: build sowon
	run: \|
	make ${{ matrix.penger }}
	env:
	CC: clang
	build-windows-msvc:
	runs-on: windows-latest
	strategy:
	matrix:
	penger: ["", "PENGER"]
	steps:
	- uses: actions/checkout@v4
	# this runs vcvarsall for us, so we get the MSVC toolchain in PATH.
	- uses: seanmiddleditch/gha-setup-vsdevenv@master
	- name: download sdl2
	run: \|
	curl -fsSL -o SDL2-devel-2.0.12-VC.zip https://www.libsdl.org/release/SDL2-devel-2.0.12-VC.zip
	tar -xf SDL2-devel-2.0.12-VC.zip
	mv SDL2-2.0.12 SDL2
	- name: build sowon
	shell: cmd
	run: \|
	build_msvc.bat ${{ matrix.penger }}

	build-freebsd:
	runs-on: ubuntu-latest
	name: FreeBSD LLVM Clang build
	strategy:
	matrix:
	penger: ["", "PENGER=1"]
	steps:
	- uses: actions/checkout@v4
	- name: Build on FreeBSD
	id: build
	uses: vmactions/freebsd-vm@v1
	with:
	usesh: true
	prepare: pkg install -y sdl2 pkgconf
	run: \|
	freebsd-version
	make ${{ matrix.penger }}

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