Prepare the 2.1.0 release #105

	name: CI

	on: [push, pull_request]

	permissions: {}

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	whitespace-errors:
	name: Check for whitespace errors
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
	with:
	persist-credentials: false
	- name: check
	run: git diff-index --check --cached 4b825dc642cb6eb9a060e54bf8d69288fbee4904

	build-check:
	runs-on: ${{ matrix.runs-on }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- { cc: gcc-14, runs-on: ubuntu-latest }
	- { cc: gcc-13, runs-on: ubuntu-latest }
	- { cc: gcc-12, runs-on: ubuntu-latest }
	- { cc: gcc-11, runs-on: ubuntu-latest }
	- { cc: gcc-10, runs-on: ubuntu-latest }
	- { cc: gcc-9, runs-on: ubuntu-latest }
	- { cc: clang-19, runs-on: ubuntu-latest }
	- { cc: clang-18, runs-on: ubuntu-latest }
	- { cc: clang-17, runs-on: ubuntu-latest }
	- { cc: clang-16, runs-on: ubuntu-latest }
	- { cc: clang-15, runs-on: ubuntu-latest }
	- { cc: clang-14, runs-on: ubuntu-latest }
	- { cc: clang-13, runs-on: ubuntu-22.04 }
	- { cc: clang-12, runs-on: ubuntu-22.04 }
	- { cc: clang-11, runs-on: ubuntu-22.04 }
	name: Build ${{ matrix.cc }}-${{ matrix.runs-on }}
	env:
	CC: ${{ matrix.cc }}
	TARGET: x86_64
	steps:
	- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
	with:
	fetch-depth: 0
	persist-credentials: false
	- name: install dependencies
	run: ci/install-dependencies.sh
	- name: build check
	run: ci/run-build-and-tests.sh

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