cmake >= 3.20 tested in CI #175

	name: ci_build

	env:
	CTEST_NO_TESTS_ACTION: error
	CMAKE_BUILD_PARALLEL_LEVEL: 4
	CTEST_PARALLEL_LEVEL: 0
	CMAKE_INSTALL_PREFIX: ~/libs
	CMAKE_PREFIX_PATH: ~/libs
	CMAKE_TLS_VERIFY: true

	on:
	push:
	paths:
	- "scripts/CMakeLists.txt"
	- ".github/workflows/ci_build.yml"

	jobs:

	linux:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Install prereqs
	run: \|
	sudo apt update
	sudo apt install --no-install-recommends libopenmpi-dev openmpi-bin

	- name: configure
	run: cmake --preset default

	- name: build, test release
	run: cmake --workflow --preset default

	- run: cmake --install build

	# builds fine on local machine
	# - name: configure example
	# run: cmake -S example -B example/build -DBUILD_SHARED_LIBS:BOOL=${{ matrix.shared }}
	# - name: build example
	# run: cmake --build example/build
	# - name: test example
	# run: ctest --test-dir example/build -V

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