create ConvexPolygon struct #315

	name: macos

	# build on c/cpp changes or workflow changes
	on:
	push:
	paths:
	- 'lib/**.[ch]'
	- 'lib/**.cpp'
	- 'src/**.[ch]'
	- 'src/**.cpp'
	- 'irr/**.[ch]'
	- 'irr/**.cpp'
	- 'irr/**.mm' # Objective-C(++)
	- '**/CMakeLists.txt'
	- 'cmake/Modules/**'
	- '.github/workflows/macos.yml'
	pull_request:
	paths:
	- 'lib/**.[ch]'
	- 'lib/**.cpp'
	- 'src/**.[ch]'
	- 'src/**.cpp'
	- 'irr/**.[ch]'
	- 'irr/**.cpp'
	- 'irr/**.mm' # Objective-C(++)
	- '**/CMakeLists.txt'
	- 'cmake/Modules/**'
	- '.github/workflows/macos.yml'

	jobs:
	build:
	# use lowest possible macOS running on x86_64 supported by brew to support more users
	runs-on: macos-13
	steps:
	- uses: actions/checkout@v4
	- name: Install deps
	run: \|
	source ./util/ci/common.sh
	install_macos_deps

	- name: Build
	run: \|
	mkdir build
	cd build
	cmake .. \
	-DCMAKE_OSX_DEPLOYMENT_TARGET=10.14 \
	-DCMAKE_FIND_FRAMEWORK=LAST \
	-DCMAKE_INSTALL_PREFIX=../build/macos/ \
	-DRUN_IN_PLACE=FALSE -DENABLE_GETTEXT=TRUE \
	-DINSTALL_DEVTEST=TRUE
	cmake --build . -j$(sysctl -n hw.logicalcpu)
	make install

	- name: Test
	run: \|
	./build/macos/minetest.app/Contents/MacOS/minetest --run-unittests

	# Zipping the built .app preserves permissions on the contained files,
	# which the GitHub artifact pipeline would otherwise strip away.
	- name: CPack
	run: \|
	cd build
	rm -rf macos
	cmake .. -DINSTALL_DEVTEST=FALSE
	cpack -G ZIP -B macos

	- uses: actions/upload-artifact@v4
	with:
	name: minetest-macos
	path: ./build/macos/*.zip

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