[cmake] changes to allow engine to build properly on clang. so dumb t… #961

	# This is a basic workflow to help you get started with Actions

	name: Generate Documentation

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the master branch
	push:
	branches: [ master ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	create_documentation:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	with:
	submodules: recursive

	# Runs a single command using the runners shell
	- name: Doxygen Action
	# You may pin to the exact commit or the version.
	# uses: mattnotmitt/doxygen-action@547745274a4d97e6ca24901dc87c59e043a7e97e
	uses: mattnotmitt/doxygen-action@v1.2.3

	- name: Deploy to GitHub Pages
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./doc/html/
	enable_jekyll: false
	allow_empty_commit: false
	force_orphan: true
	publish_branch: gh-pages

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