project(
        'wlroots-examples',
        'c',
        meson_version: '>=0.48.0',
        default_options: [
                'c_std=c11',
                'warning_level=2',
                'werror=false',
        ],
)

cc = meson.get_compiler('c')
add_global_arguments('-DWLR_USE_UNSTABLE', language : 'c')

wlroots = dependency('wlroots')
wayland_client = dependency('wayland-client')
wayland_server = dependency('wayland-server')
glesv2 = dependency('glesv2')
xkbcommon = dependency('xkbcommon')

wlr_protos = dependency('wlroots')
rt = cc.find_library('rt')

# epoll is a separate library in FreeBSD
if host_machine.system() == 'freebsd'
	libepoll = [dependency('epoll-shim')]
else
	libepoll = []
endif

libpng = dependency('libpng', required: false)

# Small hack until https://github.com/mesonbuild/meson/pull/3386/ is merged
foreach dep : ['libpng']
	if not get_variable(dep).found()
		set_variable(dep, disabler())
	endif
endforeach

examples = {
	'simple': {
		'src': 'simple.c',
		'dep': [wlroots, wayland_server, glesv2, xkbcommon],
	},
	'pointer': {
		'src': 'pointer.c',
		'dep': [wlroots, wayland_server, xkbcommon],
	},
	'touch': {
		'src': ['touch.c', 'cat.c'],
		'dep': [wlroots, wayland_server, xkbcommon],
	},
	'tablet': {
		'src': 'tablet.c',
		'dep': [wlroots, wayland_server, xkbcommon],
	},
	'rotation': {
		'src': ['rotation.c', 'cat.c'],
		'dep': [wlroots, wayland_server, xkbcommon],
	},
	'multi-pointer': {
		'src': 'multi-pointer.c',
		'dep': [wlroots, wayland_server, glesv2, xkbcommon],
	},
	'output-layout': {
		'src': ['output-layout.c', 'cat.c'],
		'dep': [wlroots, wayland_server, xkbcommon],
	},
	'screencopy': {
		'src': 'screencopy.c',
		'dep': [libpng, wayland_client, wlr_protos, rt],
	},
}

foreach name, info : examples
	all_dep_found = true
	foreach d : info.get('dep')
		all_dep_found = all_dep_found and d.found()
	endforeach
	if all_dep_found
		executable(
			name,
			info.get('src'),
			dependencies: info.get('dep'),
		)
	else
		warning('Dependencies not satisfied for ' + name)
	endif
endforeach