Use new options for X11 backend and Xwayland

backend/meson.build

@@ -1,3 +1,4 @@
+backend_parts = []
 backend_files = files(
 	'backend.c',
 	'drm/atomic.c',
@@ -49,18 +50,12 @@ if logind.found()
 	backend_deps += logind
 endif
 
-if conf_data.get('WLR_HAS_X11_BACKEND', false)
+subdir('x11')
-	backend_files += files(
-		'x11/backend.c',
-		'x11/input_device.c',
-		'x11/output.c',
-	)
-	backend_deps += xcb_xkb
-endif
 
 lib_wlr_backend = static_library(
 	'wlr_backend',
 	backend_files,
 	include_directories: wlr_inc,
+	link_whole: backend_parts,
 	dependencies: backend_deps,
 )

backend/x11/meson.build

@@ -0,0 +1,44 @@
+x11_libs = []
+x11_required = [
+	'xcb',
+	'x11-xcb',
+]
+x11_optional = [
+	'xcb-xkb',
+]
+
+foreach lib : x11_required
+	dep = dependency(lib, required: get_option('x11-backend'))
+	if not dep.found()
+		subdir_done()
+	endif
+
+	x11_libs += dep
+endforeach
+
+foreach lib : x11_optional
+	dep = dependency(lib, required: get_option(lib))
+	if dep.found()
+		x11_libs += dep
+		conf_data.set('WLR_HAS_' + lib.underscorify().to_upper(), true)
+	endif
+endforeach
+
+lib_wlr_backend_x11 = static_library(
+	'wlr_backend_x11',
+	files(
+		'backend.c',
+		'input_device.c',
+		'output.c',
+	),
+	include_directories: wlr_inc,
+	dependencies: [
+		wayland_server,
+		pixman,
+		xkbcommon,
+		x11_libs,
+	],
+)
+
+backend_parts += lib_wlr_backend_x11
+conf_data.set('WLR_HAS_X11_BACKEND', true)

meson.build

@@ -80,64 +80,21 @@ if logind.found()
 	wlr_deps += logind
 endif
 
-if get_option('enable-x11_backend') or get_option('enable-xwayland')
-	xcb            = dependency('xcb')
-	xcb_composite  = dependency('xcb-composite')
-	xcb_xfixes     = dependency('xcb-xfixes')
-	xcb_image      = dependency('xcb-image')
-	xcb_render     = dependency('xcb-render')
-	x11_xcb        = dependency('x11-xcb')
-
-	xcb_icccm      = dependency('xcb-icccm', required: false)
-	xcb_xkb        = dependency('xcb-xkb', required: false)
-	xcb_errors     = dependency('xcb-errors', required: get_option('enable-xcb_errors') == 'true')
-
-	if xcb_icccm.found()
-		conf_data.set('WLR_HAS_XCB_ICCCM', true)
-	endif
-
-	if xcb_xkb.found()
-		conf_data.set('WLR_HAS_XCB_XKB', true)
-	endif
-
-	if xcb_errors.found() and get_option('enable-xcb_errors') != 'false'
-		conf_data.set('WLR_HAS_XCB_ERRORS', true)
-	endif
-
-	wlr_deps += [
-		xcb,
-		xcb_composite,
-		x11_xcb,
-	]
-else
-	add_project_arguments('-DMESA_EGL_NO_X11_HEADERS', language: 'c')
-endif
-
-if get_option('enable-x11_backend')
-	conf_data.set('WLR_HAS_X11_BACKEND', true)
-endif
-
-if get_option('enable-xwayland')
-	subdir('xwayland')
-	wlr_parts += [lib_wlr_xwayland]
-	conf_data.set('WLR_HAS_XWAYLAND', true)
-else
-	exclude_headers += 'xwayland.h'
-endif
-
 if cc.has_header_symbol('fcntl.h', 'posix_fallocate', prefix: '#define _POSIX_C_SOURCE 200112L')
 	conf_data.set('WLR_HAS_POSIX_FALLOCATE', true)
 endif
 
+subdir('protocol')
+subdir('render')
+subdir('backend')
+subdir('xwayland')
+
 includedir = get_option('includedir')
 exclude_headers += 'meson.build'
 install_subdir('include/wlr', install_dir: includedir, exclude_files: exclude_headers)
 
 
 subdir('include')
-subdir('protocol')
-subdir('render')
-subdir('backend')
 subdir('types')
 subdir('util')
 subdir('xcursor')

meson_options.txt

@@ -1,6 +1,3 @@
-option('enable-xcb_errors', type: 'combo', choices: ['auto', 'true', 'false'], value: 'auto', description: 'Use xcb-errors util library')
-option('enable-xwayland', type: 'boolean', value: true, description: 'Enable support X11 applications')
-option('enable-x11_backend', type: 'boolean', value: true, description: 'Enable X11 backend')
 option('enable-rootston', type: 'boolean', value: true, description: 'Build the rootston example compositor')
 option('enable-examples', type: 'boolean', value: true, description: 'Build example applications')
 option('libcap', type: 'feature', value: 'auto', description: 'Enable support for rootless session via capabilities (cap_sys_admin)')

rootston/meson.build

@@ -14,9 +14,11 @@ sources = [
 	'xdg_shell_v6.c',
 	'xdg_shell.c',
 ]
-if get_option('enable-xwayland')
+
-	sources += ['xwayland.c']
+if conf_data.get('WLR_HAS_XWAYLAND', false)
+	sources += 'xwayland.c'
 endif
+
 executable(
 	'rootston', sources, dependencies: [wlroots, wlr_protos, pixman]
 )

xwayland/meson.build

@@ -1,3 +1,33 @@
+xwayland_libs = []
+xwayland_required = [
+	'xcb',
+	'xcb-composite',
+	'xcb-render',
+	'xcb-xfixes',
+]
+xwayland_optional = [
+	'xcb-errors',
+	'xcb-icccm',
+]
+
+foreach lib : xwayland_required
+	dep = dependency(lib, required: get_option('xwayland'))
+	if not dep.found()
+		exclude_headers += 'xwayland.h'
+		subdir_done()
+	endif
+
+	xwayland_libs += dep
+endforeach
+
+foreach lib : xwayland_optional
+	dep = dependency(lib, required: get_option(lib))
+	if dep.found()
+		xwayland_libs += dep
+		conf_data.set('WLR_HAS_' + lib.underscorify().to_upper(), true)
+	endif
+endforeach
+
 lib_wlr_xwayland = static_library(
 	'wlr_xwayland',
 	files(
@@ -12,14 +42,11 @@ lib_wlr_xwayland = static_library(
 	include_directories: wlr_inc,
 	dependencies: [
 		wayland_server,
-		xcb,
+		xwayland_libs,
-		xcb_composite,
-		xcb_xfixes,
-		xcb_image,
-		xcb_render,
-		xcb_icccm,
-		xcb_errors,
 		xkbcommon,
 		pixman,
 	],
 )
+
+wlr_parts += lib_wlr_xwayland
+conf_data.set('WLR_HAS_XWAYLAND', true)