Use clang-18 in workflow build #9

	# This workflow will build and test the thread pool
	name: Thread pool test

	on:
	push:
	branches: '**'
	pull_request:
	branches: '**'

	jobs:
	build:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Install build dependencies
	run: \|
	wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key \| sudo apt-key add -
	echo "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main" \| sudo tee -a /etc/apt/sources.list
	sudo apt-get update
	sudo apt-get install --no-install-recommends make pkg-config build-essential
	sudo apt-get install --no-install-recommends g++-12 libgomp1 clang-18 libomp-18-dev
	sudo apt-get install --no-install-recommends inkscape optipng
	sudo apt-get install --no-install-recommends libglm-dev libglfw3-dev libglew-dev libstb-dev libassimp-dev
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-12 10000
	sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-18 10000
	sudo update-alternatives --set g++ /usr/bin/g++-12
	sudo update-alternatives --set clang++ /usr/bin/clang++-18

	- name: (g++) Test thread demo build target
	run: \|
	make clean
	CXX="g++" DEBUG="true" make threads -j$(nproc)

	- name: (g++) Test built thread demo
	run: \|
	./launch.sh --threads

	- name: (clang++) Test thread demo build target
	run: \|
	make clean
	CXX="clang++" DEBUG="true" make threads -j$(nproc)

	- name: (clang++) Test built thread demo
	run: \|
	./launch.sh --threads

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