Add GitHub Actions (#88) #48

	on:
	push:

	jobs:
	test-liunux:
	strategy:
	matrix:
	cc: [gcc-10, gcc-11, gcc-12, gcc-13, clang-13, clang-14, clang-15]
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: test
	run: make CC=${{ matrix.cc }}
	test-macos:
	runs-on: macos-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: test
	run: make
	test-windows:
	runs-on: windows-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Setup cl
	uses: ilammy/msvc-dev-cmd@v1
	- name: Compile stresstest
	run: cl /Zi /DDSET_SORT_EXTRA stresstest.c
	- shell: bash
	run: ls
	- shell: bash
	name: stresstest
	run: ./stresstest.exe

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