spell out the variable names #61

	name: Standalone

	on:
	push:
	branches:
	- master
	- main
	pull_request:
	branches:
	- master
	- main

	env:
	CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- uses: actions/cache@v2
	with:
	path: "**/cpm_modules"
	key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('/CMakeLists.txt', '/*.cmake') }}

	- name: Before Install
	run: \|
	sudo apt-get install g++-10
	sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 90

	- name: Install dependencies
	run: sudo apt-get install libboost-dev

	- name: configure
	run: cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Debug

	- name: build
	run: cmake --build build -j4

	- name: run
	run: ./build/standalone/ProjGeom

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