Add support for transformations involving coordinate epoch changes (PointMotionOperation), mostly for Canadian NAD83(CSRS) case #1579

	name: Linux GCC 5.4

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

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

	jobs:

	linux_gcc_5_4:
	runs-on: ubuntu-latest
	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: ${{ runner.os }}-cache-gcc-5-4-${{ github.run_id }}
	restore-keys: ${{ runner.os }}-cache-gcc-5-4-

	- name: Run
	run: docker run -e CI -e WORK_DIR="$PWD" -v $PWD:$PWD ubuntu:16.04 $PWD/.github/workflows/linux_gcc_5_4/start.sh

	- name: Coveralls
	uses: coverallsapp/[email protected]
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}

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