kick/meson.build

project('tabbed-wlroots', 'c',
        version: '0.1.0',
        meson_version: '>=1.0',
        default_options: ['c_std=c11', 'warning_level=2'])

wlroots_ver = '>=0.19,<0.20'

# wlroots' pkg-config name varies between distributions (wlroots-0.19 on
# Debian/Ubuntu, plain wlroots on Arch/Fedora).  Prefer the system copy, and
# fall back to a pinned source build from subprojects/wlroots.wrap when no
# matching system library is found.
wlroots = dependency('wlroots-0.19', version: wlroots_ver, required: false)
if not wlroots.found()
    wlroots = dependency('wlroots', version: wlroots_ver, required: false)
endif
if not wlroots.found()
    wlroots_subproj = subproject('wlroots',
        default_options: ['examples=false', 'werror=false'])
    wlroots = wlroots_subproj.get_variable('wlroots')
endif

deps = [
    wlroots,
    dependency('wayland-server'),
    dependency('wayland-client'),
    dependency('wayland-egl'),
    dependency('xkbcommon'),
    dependency('egl'),
    dependency('glesv2'),
    dependency('freetype2'),
    dependency('libpng'),
    dependency('librsvg-2.0'),
]

cc = meson.get_compiler('c')
libm = cc.find_library('m', required: false)
if libm.found()
    deps += libm
endif

# --- Wayland protocol stubs -------------------------------------------
# The protocol implementation and headers are generated at build time by
# wayland-scanner instead of being committed, so they always match the
# installed wayland-protocols (the previously committed copies were produced
# by wayland-scanner 1.24/1.26 and drifted apart).  Outputs land in the build
# directory, which Meson adds to every target's include path automatically;
# that also satisfies the bundled wlroots subproject's wlr_xdg_shell.h and its
# quoted #include "xdg-shell-protocol.h".

wayland_protocols = dependency('wayland-protocols', version: '>=1.17',
    fallback: 'wayland-protocols', default_options: ['tests=false'])
wl_protocols_dir = wayland_protocols.get_variable('pkgdatadir')

wayland_scanner_dep = dependency('wayland-scanner', native: true)
wayland_scanner = find_program(
    wayland_scanner_dep.get_variable('wayland_scanner'))

# (input xml, output base name).  The output base names keep the committed
# suffixes: xdg-decoration is the unstable-v1 protocol but is still named
# plain "xdg-decoration" because the sources #include those exact names.
protocols = {
    'xdg-shell': [
        wl_protocols_dir / 'stable/xdg-shell/xdg-shell.xml',
        'xdg-shell',
    ],
    'xdg-decoration': [
        wl_protocols_dir / 'unstable/xdg-decoration/xdg-decoration-unstable-v1.xml',
        'xdg-decoration',
    ],
    'wlr-data-control-unstable-v1': [
        'wlr-protocols/wlr-data-control-unstable-v1.xml',
        'wlr-data-control',
    ],
}

protocol_sources = []
protocol_headers = []
foreach protocol, p : protocols
    xml = p[0]
    base = p[1]
    protocol_sources += custom_target(protocol + ' protocol code',
        input: xml,
        output: base + '-protocol.c',
        command: [wayland_scanner, 'private-code', '@INPUT@', '@OUTPUT@'])
    protocol_headers += custom_target(protocol + ' client header',
        input: xml,
        output: base + '-client.h',
        command: [wayland_scanner, 'client-header', '@INPUT@', '@OUTPUT@'])
    if protocol == 'xdg-shell'
        protocol_headers += custom_target(protocol + ' server header',
            input: xml,
            output: base + '-protocol.h',
            command: [wayland_scanner, 'server-header', '@INPUT@', '@OUTPUT@'])
    endif
endforeach

executable('tabbed-wlroots',
           'tabbed-wlroots.c',
           protocol_sources,
           protocol_headers,
           dependencies: deps,
           c_args: ['-DWLR_USE_UNSTABLE'])

# wltest needs only the xdg-shell stub (protocol_sources/headers[0]).
executable('wltest',
           'tests/wltest.c',
           protocol_sources[0],
           protocol_headers[0],
           dependencies: dependency('wayland-client'))