cmake: Fix utf8_validity #1663

	# ref: https://github.com/actions/runner-images
	name: amd64 Linux CMake C++

	on: [push, pull_request, workflow_dispatch]

	# Building using the github runner environement directly.
	jobs:
	native:
	strategy:
	matrix:
	cmake: [
	{generator: "Unix Makefiles", config: "Release"},
	{generator: "Ninja", config: "Release"},
	{generator: "Ninja Multi-Config", config: "Release"},
	]
	fail-fast: false
	name: Linux • ${{ matrix.cmake.generator }} • C++
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Install Ninja
	run: \|
	sudo apt-get update
	sudo apt-get install ninja-build
	- name: Check cmake
	run: cmake --version
	- name: Configure
	run: >
	cmake -S. -Bbuild
	-G "${{ matrix.cmake.generator }}"
	-DCMAKE_BUILD_TYPE="$BUILD_TYPE"
	-DBUILD_DEPS=ON
	-DCMAKE_INSTALL_PREFIX=install
	- name: Build
	run: >
	cmake --build build
	--config ${{ matrix.cmake.config }}
	--target all
	-v -j2
	- name: Test
	run: >
	CTEST_OUTPUT_ON_FAILURE=1
	cmake --build build
	--config ${{ matrix.cmake.config }}
	--target test
	-v
	- name: Install
	run: >
	cmake --build build
	--config ${{ matrix.cmake.config }}
	--target install
	-v

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