Reapply "wayland: Don't initialize OpenGL when the window flags didn'… #15075

	name: Build (Emscripten)

	on: [push, pull_request]

	jobs:
	emscripten:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: mymindstorm/setup-emsdk@v14
	with:
	version: 3.1.35
	- name: Install ninja
	run: \|
	sudo apt-get -y update
	sudo apt-get install -y ninja-build
	- name: Configure CMake
	run: \|
	emcmake cmake -S . -B build \
	-DSDL_WERROR=ON \
	-DSDL_TESTS=ON \
	-DSDL_INSTALL_TESTS=ON \
	-DCMAKE_BUILD_TYPE=Release \
	-DCMAKE_INSTALL_PREFIX=prefix \
	-GNinja
	- name: Build
	run: cmake --build build/ --verbose
	- name: Run build-time tests
	run: \|
	set -eu
	export SDL_TESTS_QUICK=1
	# FIXME: enable Emscripten build time tests
	# ctest -VV --test-dir build/
	- name: Install
	run: \|
	echo "SDL2_DIR=$(pwd)/prefix" >> $GITHUB_ENV
	cmake --install build/
	- name: Verify CMake configuration files
	run: \|
	emcmake cmake -S cmake/test -B cmake_config_build \
	-DCMAKE_BUILD_TYPE=Release \
	-DSDL_VENDOR_INFO="Github Workflow" \
	-DTEST_SHARED=FALSE \
	-DCMAKE_PREFIX_PATH=${{ env.SDL2_DIR }}
	cmake --build cmake_config_build --verbose

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