Adds build instructions #1084

	name: PR Build
	on:
	pull_request:
	branches:
	- '*'
	concurrency: pr-${{ github.ref }}
	jobs:
	prebuild:
	name: Pre build
	runs-on: ubuntu-24.04
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Check Rust styles
	run: cargo fmt --check
	build-windows:
	name: Build
	uses: ./.github/workflows/ci-windows.yml
	needs: prebuild
	build-linux:
	name: Build
	uses: ./.github/workflows/ci-linux.yml
	needs: prebuild
	build-mac:
	name: Build
	uses: ./.github/workflows/ci-mac.yml
	needs: prebuild
	with:
	macos: macos-14
	kernel-target: aarch64-unknown-none-softfloat
	build-docs:
	name: Build
	uses: ./.github/workflows/ci-docs.yml
	needs: prebuild
	postbuild:
	name: Post build
	runs-on: ubuntu-24.04
	needs: [build-windows, build-linux, build-mac, build-docs]
	steps:
	- name: Generate build information
	run: \|
	import json

	info = {
	"pr": ${{ github.event.number }},
	"base": "${{ github.base_ref }}",
	"head": "${{ github.event.pull_request.head.sha }}",
	"author": "${{ github.event.pull_request.head.user.login }}"
	}

	with open("build-info.json", "w") as fp:
	json.dump(info, fp)
	shell: python
	- name: Upload build information
	uses: actions/upload-artifact@v4
	with:
	name: build-info
	path: build-info.json

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