Use typed children macros instead of local casts #311

	name: "Linux"
	on:
	push:
	branches: [ master ]
	pull_request:
	# branches: [ master ]

	jobs:
	build_libmatroska:
	name: libmatroska
	runs-on: ubuntu-latest
	env:
	CMAKE_OPTIONS: -DDEV_MODE=ON
	CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
	steps:
	- uses: lukka/get-cmake@latest

	- name: Get pushed code
	uses: actions/checkout@v4

	- name: Checkout libebml
	uses: actions/checkout@v4
	with:
	repository: Matroska-Org/libebml
	path: libebml
	# minimum version we support ref: 'release-1.4.3'

	- name: Configure libebml
	run: cmake -S libebml -B libebml/_build ${{ env.CMAKE_OPTIONS }}

	- name: Build libebml
	run: cmake --build libebml/_build --parallel

	- name: Install libebml
	run: cmake --install libebml/_build --prefix ${GITHUB_WORKSPACE}/_built

	- name: Configure CMake
	run: cmake -S . -B _build ${{ env.CMAKE_OPTIONS }} ${{ env.CMAKE_MATROSKA_OPTIONS }} -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML"

	- name: Build
	run: cmake --build _build --parallel

	- name: Test installation
	run: cmake --install _build --prefix ${GITHUB_WORKSPACE}/_built

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