emess(): avoid potential unsafe uses #963

	name: Clang Linux

	on:
	push:
	paths-ignore:
	- 'docs/**'
	pull_request:
	paths-ignore:
	- 'docs/**'


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

	jobs:

	clang_linux:
	runs-on: ubuntu-latest
	env:
	PROJ_CMAKE_BUILD_OPTIONS: ${{ matrix.PROJ_CMAKE_BUILD_OPTIONS }}

	strategy:
	fail-fast: false
	matrix:
	include:
	- name: Regular
	id: regular
	PROJ_CMAKE_BUILD_OPTIONS: ""

	- name: Without TIFF
	id: without_tiff
	PROJ_CMAKE_BUILD_OPTIONS: "-DENABLE_TIFF=OFF"

	if: "!contains(github.event.head_commit.message, '[ci skip]') && !contains(github.event.head_commit.message, '[skip ci]')"
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Cache
	uses: actions/cache@v3
	id: cache
	with:
	path: \|
	${{ github.workspace }}/ccache.tar.gz
	key: ${{ runner.os }}-cache-clang-${{ matrix.id }}-${{ github.run_id }}
	restore-keys: ${{ runner.os }}-cache-clang-${{ matrix.id }}-

	- name: Run
	run: docker run -e CI -e TRAVIS_BUILD_DIR="$PWD" -e PROJ_CMAKE_BUILD_OPTIONS="$PROJ_CMAKE_BUILD_OPTIONS" -e WORK_DIR="$PWD" -e TRAVIS_OS_NAME=linux -e BUILD_NAME=linux_clang -v $PWD:$PWD ubuntu:20.04 $PWD/.github/workflows/clang_linux/start.sh

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