fix: harden flox builds for reliable nixpkgs and manifest packaging #69

	name: CI

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:
	# gcc 9/10/11 are only packaged for ubuntu 22.04 (jammy); the 24.04
	# "ubuntu-latest" image ships gcc 12+, so pin the image to the matrix.
	runs-on: ubuntu-22.04
	# Bound the job so a hung stress test (the workers block on write) fails
	# fast rather than running to GitHub's default job cap.
	timeout-minutes: 15
	strategy:
	fail-fast: false
	matrix:
	gcc: ['9', '10', '11']
	env:
	CC: gcc-${{ matrix.gcc }}
	steps:
	- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y help2man clang-tidy gcc-${{ matrix.gcc }}

	- name: Build
	run: make CC="$CC"

	- name: Run tests
	run: make test CC="$CC"

	- name: Lint
	run: make lint

	flox-build:
	runs-on: ubuntu-latest
	timeout-minutes: 15
	steps:
	- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1

	- name: Install Flox
	uses: flox/install-flox-action@f6002ed63e483f134001de7b4b45be891e00b09f # v2.5.1

	- name: Build and Test with Flox
	run: \|
	flox activate -- bash -c "make && make test"

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