Add flag to disable diagnostics support at compile-time #3206

	name: Sanitizers

	on: [pull_request, push]

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

	jobs:
	build:
	timeout-minutes: 15
	strategy:
	fail-fast: false
	matrix:
	include:
	- name: asan
	cmake-flags: -DCMAKE_BUILD_TYPE=Asan -DBUILD_PYTHON=OFF
	ctest-env:
	- name: tsan
	cmake-flags: -DCMAKE_BUILD_TYPE=Tsan -DBUILD_PYTHON=OFF
	ctest-env: TSAN_OPTIONS=second_deadlock_stack=1
	- name: ubsan
	cmake-flags: -DCMAKE_BUILD_TYPE=Ubsan -DBUILD_PYTHON=OFF
	ctest-env:
	name: "${{ matrix.name }}"
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v4

	- name: Install LLVM 19
	run: \|
	wget https://apt.llvm.org/llvm.sh
	chmod +x llvm.sh
	sudo ./llvm.sh 19 all
	sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-19 200
	sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-19 200
	echo "CC=clang" >> $GITHUB_ENV
	echo "CXX=clang++" >> $GITHUB_ENV
	echo "CXXFLAGS=-stdlib=libc++" >> $GITHUB_ENV

	- run: cmake -B build -S . ${{ matrix.cmake-flags }} -DBUILD_EXAMPLES=ON
	- run: cmake --build build --target all --config RelWithDebInfo --parallel $(nproc)
	- run: ${{ matrix.ctest-env }} ctest --test-dir build -C RelWithDebInfo --output-on-failure

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