meson.build@ 104894

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Additions/3D/mesa: Export to OSE and remove symlinks.
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1	# Copyright © 2017-2020 Intel Corporation
2
3	# Permission is hereby granted, free of charge, to any person obtaining a copy
4	# of this software and associated documentation files (the "Software"), to deal
5	# in the Software without restriction, including without limitation the rights
6	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7	# copies of the Software, and to permit persons to whom the Software is
8	# furnished to do so, subject to the following conditions:
9
10	# The above copyright notice and this permission notice shall be included in
11	# all copies or substantial portions of the Software.
12
13	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
19	# SOFTWARE.
20
21	project(
22	'mesa',
23	['c', 'cpp'],
24	version : run_command(
25	[find_program('python3', 'python'), 'bin/meson_get_version.py'],
26	check : true
27	).stdout(),
28	license : 'MIT',
29	meson_version : '>= 0.52',
30	default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c11', 'cpp_std=c++14']
31	)
32
33	cc = meson.get_compiler('c')
34	cpp = meson.get_compiler('cpp')
35
36	null_dep = dependency('', required : false)
37
38	if get_option('layout') != 'mirror'
39	error('`mirror` is the only build directory layout supported')
40	endif
41
42	amber = get_option('amber')
43	if amber
44	package_version_suffix=' Amber'
45	else
46	package_version_suffix=''
47	endif
48
49	# Arguments for the preprocessor, put these in a separate array from the C and
50	# C++ (cpp in meson terminology) arguments since they need to be added to the
51	# default arguments for both C and C++.
52	pre_args = [
53	'-D__STDC_CONSTANT_MACROS',
54	'-D__STDC_FORMAT_MACROS',
55	'-D__STDC_LIMIT_MACROS',
56	'-DPACKAGE_VERSION="@0@@1@"'.format(meson.project_version(), package_version_suffix),
57	'-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"',
58	]
59	c_args = []
60	cpp_args = []
61
62	with_moltenvk_dir = get_option('moltenvk-dir')
63
64	if amber
65	pre_args += '-DAMBER'
66	endif
67
68	with_vulkan_icd_dir = get_option('vulkan-icd-dir')
69	with_tests = get_option('build-tests')
70	with_aco_tests = get_option('build-aco-tests')
71	with_glx_read_only_text = get_option('glx-read-only-text')
72	with_glx_direct = get_option('glx-direct')
73	with_osmesa = get_option('osmesa')
74	with_swr_arches = get_option('swr-arches')
75	with_vulkan_overlay_layer = get_option('vulkan-layers').contains('overlay')
76	with_vulkan_device_select_layer = get_option('vulkan-layers').contains('device-select')
77	with_tools = get_option('tools')
78	if with_tools.contains('all')
79	with_tools = [
80	'drm-shim',
81	'etnaviv',
82	'freedreno',
83	'glsl',
84	'intel',
85	'intel-ui',
86	'lima',
87	'nir',
88	'nouveau',
89	'xvmc',
90	'asahi',
91	]
92	endif
93
94	with_any_vulkan_layers = get_option('vulkan-layers').length() != 0
95	with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
96	with_imgui = with_intel_tools or with_vulkan_overlay_layer
97
98	dri_drivers_path = get_option('dri-drivers-path')
99	if dri_drivers_path == ''
100	dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
101	endif
102	dri_search_path = get_option('dri-search-path')
103	if dri_search_path == ''
104	dri_search_path = dri_drivers_path
105	endif
106
107	gbm_backends_path = get_option('gbm-backends-path')
108	if gbm_backends_path == ''
109	gbm_backends_path = join_paths(get_option('prefix'), get_option('libdir'), 'gbm')
110	endif
111
112	with_gles1 = get_option('gles1')
113	if with_gles1 == 'true'
114	with_gles1 = 'enabled'
115	warning('gles1 option "true" deprecated, please use "enabled" instead.')
116	elif with_gles1 == 'false'
117	with_gles1 = 'disabled'
118	warning('gles1 option "false" deprecated, please use "disabled" instead.')
119	endif
120	with_gles2 = get_option('gles2')
121	if with_gles2 == 'true'
122	with_gles2 = 'enabled'
123	warning('gles2 option "true" deprecated, please use "enabled" instead.')
124	elif with_gles2 == 'false'
125	with_gles2 = 'disabled'
126	warning('gles2 option "false" deprecated, please use "disabled" instead.')
127	endif
128	if host_machine.system() == 'windows'
129	if with_gles1 == 'auto'
130	with_gles1 = 'disabled'
131	endif
132	if with_gles2 == 'auto'
133	with_gles2 = 'disabled'
134	endif
135	endif
136	with_opengl = get_option('opengl')
137
138	# Default shared glapi off for windows, on elsewhere.
139	_sg = get_option('shared-glapi')
140	if _sg == 'true'
141	_sg = 'enabled'
142	warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
143	elif _sg == 'false'
144	_sg = 'disabled'
145	warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
146	endif
147	if _sg == 'auto'
148	with_shared_glapi = host_machine.system() != 'windows'
149	else
150	with_shared_glapi = _sg == 'enabled'
151	endif
152
153	# shared-glapi is required if at least two OpenGL APIs are being built
154	if not with_shared_glapi
155	if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
156	(with_gles1 == 'enabled' and with_opengl) or
157	(with_gles2 == 'enabled' and with_opengl))
158	error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
159	endif
160	with_gles1 = 'disabled'
161	with_gles2 = 'disabled'
162	endif
163
164	# We require OpenGL for OpenGL ES
165	if not with_opengl
166	if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
167	error('building OpenGL ES without OpenGL is not supported.')
168	endif
169	with_gles1 = 'disabled'
170	with_gles2 = 'disabled'
171	endif
172
173	with_gles1 = with_gles1 != 'disabled'
174	with_gles2 = with_gles2 != 'disabled'
175	with_any_opengl = with_opengl or with_gles1 or with_gles2
176	# Only build shared_glapi if at least one OpenGL API is enabled
177	with_shared_glapi = with_shared_glapi and with_any_opengl
178
179	system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
180
181	dri_drivers = get_option('dri-drivers')
182	if dri_drivers.contains('auto')
183	if system_has_kms_drm
184	# TODO: PPC, Sparc
185	if ['x86', 'x86_64'].contains(host_machine.cpu_family())
186	dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
187	elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
188	dri_drivers = []
189	elif ['mips', 'mips64', 'riscv32', 'riscv64'].contains(host_machine.cpu_family())
190	dri_drivers = ['r100', 'r200', 'nouveau']
191	else
192	error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
193	host_machine.cpu_family()))
194	endif
195	elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
196	# only swrast would make sense here, but gallium swrast is a much better default
197	dri_drivers = []
198	else
199	error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
200	host_machine.system()))
201	endif
202	endif
203
204	with_dri_i915 = dri_drivers.contains('i915')
205	with_dri_i965 = dri_drivers.contains('i965')
206	with_dri_r100 = dri_drivers.contains('r100')
207	with_dri_r200 = dri_drivers.contains('r200')
208	with_dri_nouveau = dri_drivers.contains('nouveau')
209
210	with_dri = dri_drivers.length() != 0
211
212	gallium_drivers = get_option('gallium-drivers')
213	if gallium_drivers.contains('auto')
214	if amber
215	gallium_drivers = []
216	elif system_has_kms_drm
217	# TODO: PPC, Sparc
218	if ['x86', 'x86_64'].contains(host_machine.cpu_family())
219	gallium_drivers = [
220	'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
221	'iris', 'crocus'
222	]
223	elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
224	gallium_drivers = [
225	'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
226	'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
227	]
228	elif ['mips', 'mips64', 'riscv32', 'riscv64'].contains(host_machine.cpu_family())
229	gallium_drivers = [
230	'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'swrast'
231	]
232	else
233	error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
234	host_machine.cpu_family()))
235	endif
236	elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
237	gallium_drivers = ['swrast']
238	else
239	error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
240	host_machine.system()))
241	endif
242	endif
243	with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
244	with_gallium_r300 = gallium_drivers.contains('r300')
245	with_gallium_r600 = gallium_drivers.contains('r600')
246	with_gallium_nouveau = gallium_drivers.contains('nouveau')
247	with_gallium_freedreno = gallium_drivers.contains('freedreno')
248	with_gallium_softpipe = gallium_drivers.contains('swrast')
249	with_gallium_vc4 = gallium_drivers.contains('vc4')
250	with_gallium_v3d = gallium_drivers.contains('v3d')
251	with_gallium_panfrost = gallium_drivers.contains('panfrost')
252	with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
253	with_gallium_tegra = gallium_drivers.contains('tegra')
254	with_gallium_crocus = gallium_drivers.contains('crocus')
255	with_gallium_iris = gallium_drivers.contains('iris')
256	with_gallium_i915 = gallium_drivers.contains('i915')
257	with_gallium_svga = gallium_drivers.contains('svga')
258	with_gallium_virgl = gallium_drivers.contains('virgl')
259	with_gallium_swr = gallium_drivers.contains('swr')
260	with_gallium_lima = gallium_drivers.contains('lima')
261	with_gallium_zink = gallium_drivers.contains('zink')
262	with_gallium_d3d12 = gallium_drivers.contains('d3d12')
263	with_gallium_asahi = gallium_drivers.contains('asahi')
264
265	with_gallium = gallium_drivers.length() != 0
266	with_gallium_kmsro = with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_panfrost or with_gallium_lima or with_gallium_freedreno
267
268	if with_gallium and system_has_kms_drm
269	_glx = get_option('glx')
270	_egl = get_option('egl')
271	if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
272	with_dri = true
273	endif
274	endif
275
276	_vulkan_drivers = get_option('vulkan-drivers')
277	if _vulkan_drivers.contains('auto')
278	if system_has_kms_drm
279	if amber
280	_vulkan_drivers = []
281	elif host_machine.cpu_family().startswith('x86')
282	_vulkan_drivers = ['amd', 'intel', 'swrast']
283	elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
284	_vulkan_drivers = ['swrast']
285	elif ['mips', 'mips64', 'riscv32', 'riscv64'].contains(host_machine.cpu_family())
286	_vulkan_drivers = ['amd', 'swrast']
287	else
288	error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
289	host_machine.cpu_family()))
290	endif
291	elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
292	# No vulkan driver supports windows or macOS currently
293	_vulkan_drivers = []
294	else
295	error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
296	host_machine.system()))
297	endif
298	endif
299
300	with_intel_vk = _vulkan_drivers.contains('intel')
301	with_amd_vk = _vulkan_drivers.contains('amd')
302	with_freedreno_vk = _vulkan_drivers.contains('freedreno')
303	with_panfrost_vk = _vulkan_drivers.contains('panfrost')
304	with_swrast_vk = _vulkan_drivers.contains('swrast')
305	with_virtio_vk = _vulkan_drivers.contains('virtio-experimental')
306	with_freedreno_kgsl = get_option('freedreno-kgsl')
307	with_broadcom_vk = _vulkan_drivers.contains('broadcom')
308	with_any_vk = _vulkan_drivers.length() != 0
309
310	with_any_broadcom = with_gallium_vc4 or with_gallium_v3d or with_broadcom_vk
311	with_any_intel = with_dri_i965 or with_intel_vk or with_gallium_iris or with_gallium_crocus
312
313	if with_swrast_vk and not with_gallium_softpipe
314	error('swrast vulkan requires gallium swrast')
315	endif
316	if with_dri_i915 and with_gallium_i915
317	error('Only one i915 provider can be built')
318	endif
319	if with_gallium_tegra and not with_gallium_nouveau
320	error('tegra driver requires nouveau driver')
321	endif
322	if with_aco_tests and not with_amd_vk
323	error('ACO tests require Radv')
324	endif
325
326	with_microsoft_clc = get_option('microsoft-clc').enabled()
327	with_clc = with_microsoft_clc
328	with_libclc = with_clc
329	with_spirv_to_dxil = get_option('spirv-to-dxil')
330
331	if host_machine.system() == 'darwin'
332	with_dri_platform = 'apple'
333	pre_args += '-DBUILDING_MESA'
334	elif ['windows', 'cygwin'].contains(host_machine.system())
335	with_dri_platform = 'windows'
336	elif system_has_kms_drm
337	with_dri_platform = 'drm'
338	else
339	# FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
340	# assert here that one of those cases has been met.
341	# FIXME: illumos ends up here as well
342	with_dri_platform = 'none'
343	endif
344
345	_platforms = get_option('platforms')
346	if _platforms.contains('auto')
347	if system_has_kms_drm
348	_platforms = ['x11', 'wayland']
349	elif ['darwin', 'cygwin'].contains(host_machine.system())
350	_platforms = ['x11']
351	elif ['haiku'].contains(host_machine.system())
352	_platforms = ['haiku']
353	elif host_machine.system() == 'windows'
354	_platforms = ['windows']
355	else
356	error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
357	host_machine.system()))
358	endif
359	endif
360
361	with_platform_android = _platforms.contains('android')
362	with_platform_x11 = _platforms.contains('x11')
363	with_platform_wayland = _platforms.contains('wayland')
364	with_platform_haiku = _platforms.contains('haiku')
365	with_platform_windows = _platforms.contains('windows')
366
367	with_glx = get_option('glx')
368	if with_glx == 'auto'
369	if with_platform_android
370	with_glx = 'disabled'
371	elif with_dri
372	with_glx = 'dri'
373	elif with_platform_haiku
374	with_glx = 'disabled'
375	elif host_machine.system() == 'windows'
376	with_glx = 'disabled'
377	elif with_gallium
378	# Even when building just gallium drivers the user probably wants dri
379	with_glx = 'dri'
380	elif with_platform_x11 and with_any_opengl and not with_any_vk
381	# The automatic behavior should not be to turn on xlib based glx when
382	# building only vulkan drivers
383	with_glx = 'xlib'
384	else
385	with_glx = 'disabled'
386	endif
387	endif
388	if with_glx == 'dri'
389	if with_gallium
390	with_dri = true
391	endif
392	endif
393
394	if not (with_dri or with_gallium or with_glx != 'disabled')
395	with_gles1 = false
396	with_gles2 = false
397	with_opengl = false
398	with_any_opengl = false
399	with_shared_glapi = false
400	endif
401
402	_gbm = get_option('gbm')
403	if _gbm == 'true'
404	_gbm = 'enabled'
405	warning('gbm option "true" deprecated, please use "enabled" instead.')
406	elif _gbm == 'false'
407	_gbm = 'disabled'
408	warning('gbm option "false" deprecated, please use "disabled" instead.')
409	endif
410	if _gbm == 'auto'
411	with_gbm = system_has_kms_drm and with_dri
412	else
413	with_gbm = _gbm == 'enabled'
414	endif
415	if with_gbm and not system_has_kms_drm
416	error('GBM only supports DRM/KMS platforms')
417	endif
418
419	_xlib_lease = get_option('xlib-lease')
420	if _xlib_lease == 'true'
421	_xlib_lease = 'enabled'
422	warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
423	elif _xlib_lease == 'false'
424	_xlib_lease = 'disabled'
425	warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
426	endif
427	if _xlib_lease == 'auto'
428	with_xlib_lease = with_platform_x11 and system_has_kms_drm
429	else
430	with_xlib_lease = _xlib_lease == 'enabled'
431	endif
432
433	if with_platform_wayland
434	c_args += '-DVK_USE_PLATFORM_WAYLAND_KHR'
435	#add this once aco and other places can build with it
436	#cpp_args += '-DVK_USE_PLATFORM_WAYLAND_KHR'
437	endif
438	if with_platform_x11
439	c_args += ['-DVK_USE_PLATFORM_XCB_KHR', '-DVK_USE_PLATFORM_XLIB_KHR']
440	#add this once aco and other places can build with it
441	#cpp_args += ['-DVK_USE_PLATFORM_XCB_KHR', '-DVK_USE_PLATFORM_XLIB_KHR']
442	endif
443	if with_platform_windows
444	c_args += '-DVK_USE_PLATFORM_WIN32_KHR'
445	#add this once aco and other places can build with it
446	#cpp_args += '-DVK_USE_PLATFORM_WIN32_KHR'
447	endif
448	if with_platform_android
449	c_args += '-DVK_USE_PLATFORM_ANDROID_KHR'
450	cpp_args += '-DVK_USE_PLATFORM_ANDROID_KHR'
451	endif
452	if with_xlib_lease
453	c_args += '-DVK_USE_PLATFORM_XLIB_XRANDR_EXT'
454	#add this once aco and other places can build with it
455	#cpp_args += '-DVK_USE_PLATFORM_XLIB_XRANDR_EXT'
456	endif
457	if system_has_kms_drm and not with_platform_android
458	c_args += '-DVK_USE_PLATFORM_DISPLAY_KHR'
459	cpp_args += '-DVK_USE_PLATFORM_DISPLAY_KHR'
460	endif
461
462	_egl = get_option('egl')
463	if _egl == 'true'
464	_egl = 'enabled'
465	warning('egl option "true" deprecated, please use "enabled" instead.')
466	elif _egl == 'false'
467	_egl = 'disabled'
468	warning('egl option "false" deprecated, please use "disabled" instead.')
469	endif
470	if _egl == 'auto'
471	with_egl = (
472	host_machine.system() != 'darwin' and
473	(with_platform_windows or with_dri) and
474	with_shared_glapi
475	)
476	elif _egl == 'enabled'
477	if not with_dri and not with_platform_haiku and not with_platform_windows
478	error('EGL requires dri, haiku, or windows')
479	elif not with_shared_glapi
480	error('EGL requires shared-glapi')
481	elif not ['disabled', 'dri'].contains(with_glx)
482	error('EGL requires dri, but a GLX is being built without dri')
483	elif host_machine.system() == 'darwin'
484	error('EGL is not available on MacOS')
485	endif
486	with_egl = true
487	else
488	with_egl = false
489	endif
490
491	if with_egl
492	_platforms += 'surfaceless'
493	if with_gbm and not with_platform_android
494	_platforms += 'drm'
495	endif
496	endif
497
498	egl_native_platform = get_option('egl-native-platform')
499	if egl_native_platform.contains('auto')
500	if _platforms.length() != 0
501	egl_native_platform = _platforms[0]
502	else
503	egl_native_platform = 'surfaceless'
504	endif
505	endif
506
507	if with_egl and not _platforms.contains(egl_native_platform)
508	error('-Degl-native-platform does not specify an enabled platform')
509	endif
510
511	# Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
512	use_elf_tls = false
513	if (not ['freebsd', 'openbsd', 'haiku'].contains(host_machine.system()) and
514	(not with_platform_android or get_option('platform-sdk-version') >= 29) and
515	(not with_platform_windows or not with_shared_glapi))
516	pre_args += '-DUSE_ELF_TLS'
517	use_elf_tls = true
518
519	if with_platform_android
520	# By default the NDK compiler, at least, emits emutls references instead of
521	# ELF TLS, even when building targeting newer API levels. Make it actually do
522	# ELF TLS instead.
523	c_args += '-fno-emulated-tls'
524	cpp_args += '-fno-emulated-tls'
525	endif
526	endif
527
528	if with_glx != 'disabled'
529	if not (with_platform_x11 and with_any_opengl)
530	error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
531	elif with_glx == 'gallium-xlib'
532	if not with_gallium
533	error('Gallium-xlib based GLX requires at least one gallium driver')
534	elif not with_gallium_softpipe
535	error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
536	elif with_dri
537	error('gallium-xlib conflicts with any dri driver')
538	endif
539	elif with_glx == 'xlib'
540	if with_dri
541	error('xlib conflicts with any dri driver')
542	endif
543	elif with_glx == 'dri'
544	if not with_shared_glapi
545	error('dri based GLX requires shared-glapi')
546	endif
547	endif
548	endif
549
550	_glvnd = get_option('glvnd')
551	if _glvnd == 'true' or _glvnd == 'enabled' or (amber and _glvnd == 'auto')
552	with_glvnd = true
553	else
554	with_glvnd = false
555	endif
556
557	glvnd_vendor_name = get_option('glvnd-vendor-name')
558	if glvnd_vendor_name == 'auto'
559	if amber
560	glvnd_vendor_name = 'amber'
561	else
562	glvnd_vendor_name = 'mesa'
563	endif
564	endif
565
566	if with_glvnd
567	if with_platform_windows
568	error('glvnd cannot be used on Windows')
569	elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
570	error('Cannot build glvnd support for GLX that is not DRI based.')
571	elif with_glx == 'disabled' and not with_egl
572	error('glvnd requires DRI based GLX and/or EGL')
573	endif
574	if get_option('egl-lib-suffix') != ''
575	error('''EGL lib suffix can't be used with libglvnd''')
576	endif
577	endif
578
579	if with_vulkan_icd_dir == ''
580	with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
581	endif
582
583	# GNU/Hurd includes egl_dri2, without drm.
584	with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
585	host_machine.system() == 'gnu')
586	_dri3 = get_option('dri3')
587	if _dri3 == 'true'
588	_dri3 = 'enabled'
589	warning('dri3 option "true" deprecated, please use "enabled" instead.')
590	elif _dri3 == 'false'
591	_dri3 = 'disabled'
592	warning('dri3 option "false" deprecated, please use "disabled" instead.')
593	endif
594	if _dri3 == 'auto'
595	with_dri3 = system_has_kms_drm and with_dri2
596	else
597	with_dri3 = _dri3 == 'enabled'
598	endif
599
600	if with_any_vk and (with_platform_x11 and not with_dri3)
601	error('Vulkan drivers require dri3 for X11 support')
602	endif
603	if with_dri
604	if with_glx == 'disabled' and not with_egl and not with_gbm
605	error('building dri drivers require at least one windowing system')
606	endif
607	endif
608
609	if with_gallium_kmsro and (with_platform_x11 and not with_dri3)
610	error('kmsro requires dri3 for X11 support')
611	endif
612
613	_vdpau = get_option('gallium-vdpau')
614	if _vdpau == 'true'
615	_vdpau = 'enabled'
616	warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
617	elif _vdpau == 'false'
618	_vdpau = 'disabled'
619	warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
620	endif
621	if not system_has_kms_drm
622	if _vdpau == 'enabled'
623	error('VDPAU state tracker can only be build on unix-like OSes.')
624	else
625	_vdpau = 'disabled'
626	endif
627	elif not with_platform_x11
628	if _vdpau == 'enabled'
629	error('VDPAU state tracker requires X11 support.')
630	else
631	_vdpau = 'disabled'
632	endif
633	elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
634	with_gallium_nouveau)
635	if _vdpau == 'enabled'
636	error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
637	else
638	_vdpau = 'disabled'
639	endif
640	endif
641	dep_vdpau = null_dep
642	with_gallium_vdpau = false
643	if _vdpau != 'disabled'
644	dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
645	if dep_vdpau.found()
646	dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
647	with_gallium_vdpau = true
648	endif
649	endif
650
651	if with_gallium_vdpau
652	pre_args += '-DHAVE_ST_VDPAU'
653	endif
654	vdpau_drivers_path = get_option('vdpau-libs-path')
655	if vdpau_drivers_path == ''
656	vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
657	endif
658
659	if with_gallium_zink
660	dep_vulkan = dependency('vulkan')
661	endif
662
663	dep_dxheaders = null_dep
664	if with_gallium_d3d12 or with_microsoft_clc
665	dep_dxheaders = dependency('DirectX-Headers', fallback : ['DirectX-Headers', 'dep_dxheaders'],
666	required : with_gallium_d3d12
667	)
668	endif
669
670	if with_vulkan_overlay_layer or with_aco_tests
671	prog_glslang = find_program('glslangValidator')
672	endif
673
674	_xvmc = get_option('gallium-xvmc')
675	if _xvmc == 'true'
676	_xvmc = 'enabled'
677	warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
678	elif _xvmc == 'false'
679	_xvmc = 'disabled'
680	warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
681	endif
682	if not system_has_kms_drm
683	if _xvmc == 'enabled'
684	error('XVMC state tracker can only be build on unix-like OSes.')
685	else
686	_xvmc = 'disabled'
687	endif
688	elif not with_platform_x11
689	if _xvmc == 'enabled'
690	error('XVMC state tracker requires X11 support.')
691	else
692	_xvmc = 'disabled'
693	endif
694	elif not (with_gallium_r600 or with_gallium_nouveau)
695	if _xvmc == 'enabled'
696	error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
697	else
698	_xvmc = 'disabled'
699	endif
700	endif
701	dep_xvmc = null_dep
702	dep_xv = null_dep
703	with_gallium_xvmc = false
704	if _xvmc != 'disabled'
705	dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
706	dep_xv = dependency('xv', required : _xvmc == 'enabled')
707	with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
708	endif
709
710	xvmc_drivers_path = get_option('xvmc-libs-path')
711	if xvmc_drivers_path == ''
712	xvmc_drivers_path = get_option('libdir')
713	endif
714
715	_omx = get_option('gallium-omx')
716	if not system_has_kms_drm
717	if ['auto', 'disabled'].contains(_omx)
718	_omx = 'disabled'
719	else
720	error('OMX state tracker can only be built on unix-like OSes.')
721	endif
722	elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
723	if ['auto', 'disabled'].contains(_omx)
724	_omx = 'disabled'
725	else
726	error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
727	endif
728	endif
729	with_gallium_omx = _omx
730	dep_omx = null_dep
731	dep_omx_other = []
732	if ['auto', 'bellagio'].contains(_omx)
733	dep_omx = dependency(
734	'libomxil-bellagio', required : _omx == 'bellagio'
735	)
736	if dep_omx.found()
737	with_gallium_omx = 'bellagio'
738	endif
739	endif
740	if ['auto', 'tizonia'].contains(_omx)
741	if with_dri and with_egl
742	dep_omx = dependency(
743	'libtizonia', version : '>= 0.10.0',
744	required : _omx == 'tizonia',
745	)
746	dep_omx_other = [
747	dependency('libtizplatform', required : _omx == 'tizonia'),
748	dependency('tizilheaders', required : _omx == 'tizonia'),
749	]
750	if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
751	with_gallium_omx = 'tizonia'
752	endif
753	elif _omx == 'tizonia'
754	error('OMX-Tizonia state tracker requires dri and egl')
755	endif
756	endif
757	if _omx == 'auto'
758	with_gallium_omx = 'disabled'
759	else
760	with_gallium_omx = _omx
761	endif
762
763	pre_args += [
764	'-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
765	'-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
766	]
767
768
769	omx_drivers_path = get_option('omx-libs-path')
770
771	if with_gallium_omx != 'disabled'
772	# Figure out where to put the omx driver.
773	# FIXME: this could all be vastly simplified by adding a 'defined_variable'
774	# argument to meson's get_pkgconfig_variable method.
775	if omx_drivers_path == ''
776	_omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
777	_omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
778	if _omx_libdir == get_option('libdir')
779	omx_drivers_path = _omx_drivers_dir
780	else
781	_omx_base_dir = []
782	# This will fail on windows. Does OMX run on windows?
783	_omx_libdir = _omx_libdir.split('/')
784	_omx_drivers_dir = _omx_drivers_dir.split('/')
785	foreach o : _omx_drivers_dir
786	if not _omx_libdir.contains(o)
787	_omx_base_dir += o
788	endif
789	endforeach
790	omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
791	endif
792	endif
793	endif
794
795	_va = get_option('gallium-va')
796	if _va == 'true'
797	_va = 'enabled'
798	warning('gallium-va option "true" deprecated, please use "enabled" instead.')
799	elif _va == 'false'
800	_va = 'disabled'
801	warning('gallium-va option "false" deprecated, please use "disabled" instead.')
802	endif
803	if not system_has_kms_drm
804	if _va == 'enabled'
805	error('VA state tracker can only be built on unix-like OSes.')
806	else
807	_va = 'disabled'
808	endif
809	elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
810	if _va == 'enabled'
811	error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
812	else
813	_va = 'disabled'
814	endif
815	endif
816	with_gallium_va = false
817	dep_va = null_dep
818	if _va != 'disabled'
819	dep_va = dependency('libva', version : '>= 1.8.0', required : _va == 'enabled')
820	if dep_va.found()
821	dep_va_headers = dep_va.partial_dependency(compile_args : true)
822	with_gallium_va = true
823	if cc.has_header_symbol('va/va.h', 'VASurfaceAttribDRMFormatModifiers',
824	dependencies: dep_va_headers)
825	pre_args += '-DHAVE_VA_SURFACE_ATTRIB_DRM_FORMAT_MODIFIERS'
826	endif
827	endif
828	endif
829
830	va_drivers_path = get_option('va-libs-path')
831	if va_drivers_path == ''
832	va_drivers_path = join_paths(get_option('libdir'), 'dri')
833	endif
834
835	_xa = get_option('gallium-xa')
836	if _xa == 'true'
837	_xa = 'enabled'
838	warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
839	elif _xa == 'false'
840	_xa = 'disabled'
841	warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
842	endif
843	if not system_has_kms_drm
844	if _xa == 'enabled'
845	error('XA state tracker can only be built on unix-like OSes.')
846	else
847	_xa = 'disabled'
848	endif
849	elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
850	or with_gallium_svga)
851	if _xa == 'enabled'
852	error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
853	else
854	_xa = 'disabled'
855	endif
856	endif
857	with_gallium_xa = _xa != 'disabled'
858
859	d3d_drivers_path = get_option('d3d-drivers-path')
860	if d3d_drivers_path == ''
861	d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
862	endif
863
864	with_gallium_st_nine = get_option('gallium-nine')
865	if with_gallium_st_nine
866	if not with_gallium_softpipe
867	error('The nine state tracker requires gallium softpipe/llvmpipe.')
868	elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
869	or with_gallium_r300 or with_gallium_svga or with_gallium_i915
870	or with_gallium_iris or with_gallium_crocus or with_gallium_zink)
871	error('The nine state tracker requires at least one non-swrast gallium driver.')
872	endif
873	if not with_dri3
874	error('Using nine with wine requires dri3')
875	endif
876	endif
877	with_gallium_st_d3d10umd = get_option('gallium-d3d10umd')
878	if with_gallium_st_d3d10umd
879	if not with_gallium_softpipe
880	error('The d3d10umd state tracker requires gallium softpipe/llvmpipe.')
881	endif
882	endif
883	_power8 = get_option('power8')
884	if _power8 == 'true'
885	_power8 = 'enabled'
886	warning('power8 option "true" deprecated, please use "enabled" instead.')
887	elif _power8 == 'false'
888	_power8 = 'disabled'
889	warning('power8 option "false" deprecated, please use "disabled" instead.')
890	endif
891	if _power8 != 'disabled'
892	# on old versions of meson the cpu family would return as ppc64le on little
893	# endian power8, this was changed in 0.48 such that the family would always
894	# be ppc64 regardless of endianness, and then the machine.endian() value
895	# should be checked. Since we support versions < 0.48 we need to use
896	# startswith.
897	if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
898	if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
899	error('Altivec is not supported with gcc version < 4.8.')
900	endif
901	if cc.compiles('''
902	#include <altivec.h>
903	int main() {
904	vector unsigned char r;
905	vector unsigned int v = vec_splat_u32 (1);
906	r = __builtin_vec_vgbbd ((vector unsigned char) v);
907	return 0;
908	}''',
909	args : '-mpower8-vector',
910	name : 'POWER8 intrinsics')
911	pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
912	elif get_option('power8') == 'enabled'
913	error('POWER8 intrinsic support required but not found.')
914	endif
915	endif
916	endif
917
918	if get_option('vmware-mks-stats')
919	if not with_gallium_svga
920	error('vmware-mks-stats requires gallium VMware/svga driver.')
921	endif
922	pre_args += '-DVMX86_STATS=1'
923	endif
924
925	_opencl = get_option('gallium-opencl')
926	if _opencl != 'disabled'
927	if not with_gallium
928	error('OpenCL Clover implementation requires at least one gallium driver.')
929	endif
930
931	with_libclc = true
932	with_gallium_opencl = true
933	with_opencl_icd = _opencl == 'icd'
934	else
935	with_gallium_opencl = false
936	with_opencl_icd = false
937	endif
938
939	dep_clc = null_dep
940	if with_libclc
941	dep_clc = dependency('libclc')
942	endif
943
944	gl_pkgconfig_c_flags = []
945	if with_platform_x11
946	if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
947	pre_args += '-DHAVE_X11_PLATFORM'
948	pre_args += '-DHAVE_XCB_PLATFORM'
949	endif
950	if with_glx == 'xlib' or with_glx == 'gallium-xlib'
951	pre_args += '-DUSE_XSHM'
952	else
953	pre_args += '-DGLX_INDIRECT_RENDERING'
954	if with_glx_direct
955	pre_args += '-DGLX_DIRECT_RENDERING'
956	endif
957	if with_dri_platform == 'drm'
958	pre_args += '-DGLX_USE_DRM'
959	elif with_dri_platform == 'apple'
960	pre_args += '-DGLX_USE_APPLEGL'
961	elif with_dri_platform == 'windows'
962	pre_args += '-DGLX_USE_WINDOWSGL'
963	endif
964	endif
965	else
966	pre_args += '-DEGL_NO_X11'
967	gl_pkgconfig_c_flags += '-DEGL_NO_X11'
968	endif
969	if with_gbm and not with_platform_android
970	pre_args += '-DHAVE_DRM_PLATFORM'
971	endif
972	if with_platform_windows
973	pre_args += '-DHAVE_WINDOWS_PLATFORM'
974	endif
975
976	with_android_stub = get_option('android-stub')
977	if with_android_stub and not with_platform_android
978	error('`-D android-stub=true` makes no sense without `-D platforms=android`')
979	endif
980
981	if with_platform_android
982	dep_android_mapper4 = null_dep
983	if not with_android_stub
984	dep_android = [
985	dependency('cutils'),
986	dependency('hardware'),
987	dependency('sync'),
988	dependency('backtrace')
989	]
990	if get_option('platform-sdk-version') >= 26
991	dep_android += dependency('nativewindow')
992	endif
993	if get_option('platform-sdk-version') >= 30
994	dep_android_mapper4 = dependency('android.hardware.graphics.mapper', version : '>= 4.0', required : false)
995	endif
996	endif
997	pre_args += [
998	'-DHAVE_ANDROID_PLATFORM',
999	'-DANDROID',
1000	'-DANDROID_API_LEVEL=' + get_option('platform-sdk-version').to_string()
1001	]
1002	endif
1003	if with_platform_haiku
1004	pre_args += '-DHAVE_HAIKU_PLATFORM'
1005	endif
1006
1007	prog_python = import('python').find_installation('python3')
1008	has_mako = run_command(
1009	prog_python, '-c',
1010	'''
1011	from distutils.version import StrictVersion
1012	import mako
1013	assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
1014	''')
1015	if has_mako.returncode() != 0
1016	error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
1017	endif
1018
1019	if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
1020	error('When using GCC, version 4.4.6 or later is required.')
1021	endif
1022
1023	# Support systems without ETIME (e.g. FreeBSD)
1024	if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
1025	pre_args += '-DETIME=ETIMEDOUT'
1026	endif
1027
1028	# Define DEBUG for debug builds only (debugoptimized is not included on this one)
1029	if get_option('buildtype') == 'debug'
1030	pre_args += '-DDEBUG'
1031	endif
1032
1033	with_shader_cache = false
1034	_shader_cache = get_option('shader-cache')
1035	if _shader_cache == 'true'
1036	_shader_cache = 'enabled'
1037	warning('shader_cache option "true" deprecated, please use "enabled" instead.')
1038	elif _shader_cache == 'false'
1039	_shader_cache = 'disabled'
1040	warning('shader_cache option "false" deprecated, please use "disabled" instead.')
1041	endif
1042	if _shader_cache != 'disabled'
1043	if host_machine.system() == 'windows'
1044	if _shader_cache == 'enabled'
1045	error('Shader Cache does not currently work on Windows')
1046	endif
1047	else
1048	pre_args += '-DENABLE_SHADER_CACHE'
1049	if not get_option('shader-cache-default')
1050	pre_args += '-DSHADER_CACHE_DISABLE_BY_DEFAULT'
1051	endif
1052	with_shader_cache = true
1053	endif
1054	endif
1055
1056	if with_shader_cache
1057	shader_cache_max_size = get_option('shader-cache-max-size')
1058	if shader_cache_max_size != ''
1059	pre_args += '-DMESA_GLSL_CACHE_MAX_SIZE="@0@"'.format(shader_cache_max_size)
1060	endif
1061	endif
1062
1063	# Check for GCC style builtins
1064	foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
1065	'ffsll', 'popcount', 'popcountll', 'unreachable', 'types_compatible_p']
1066	if cc.has_function(b)
1067	pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
1068	endif
1069	endforeach
1070
1071	# check for GCC __attribute__
1072	_attributes = [
1073	'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
1074	'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
1075	]
1076	foreach a : cc.get_supported_function_attributes(_attributes)
1077	pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
1078	endforeach
1079	if cc.has_function_attribute('visibility:hidden')
1080	pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
1081	endif
1082	if cc.compiles('__uint128_t foo(void) { return 0; }',
1083	name : '__uint128_t')
1084	pre_args += '-DHAVE_UINT128'
1085	endif
1086
1087	# TODO: this is very incomplete
1088	if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd', 'haiku'].contains(host_machine.system())
1089	pre_args += '-D_GNU_SOURCE'
1090	elif host_machine.system() == 'sunos'
1091	pre_args += '-D__EXTENSIONS__'
1092	elif host_machine.system() == 'windows'
1093	pre_args += [
1094	'-D_WINDOWS', '-D_WIN32_WINNT=0x0A00', '-DWINVER=0x0A00',
1095	'-DPIPE_SUBSYSTEM_WINDOWS_USER',
1096	'-D_USE_MATH_DEFINES', # XXX: scons didn't use this for mingw
1097	]
1098	if cc.get_id() == 'msvc'
1099	pre_args += [
1100	'-DVC_EXTRALEAN',
1101	'-D_CRT_SECURE_NO_WARNINGS',
1102	'-D_CRT_SECURE_NO_DEPRECATE',
1103	'-D_SCL_SECURE_NO_WARNINGS',
1104	'-D_SCL_SECURE_NO_DEPRECATE',
1105	'-D_ALLOW_KEYWORD_MACROS',
1106	'-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
1107	'-DNOMINMAX',
1108	]
1109	else
1110	pre_args += ['-D__MSVCRT_VERSION__=0x0700']
1111	endif
1112	elif host_machine.system() == 'openbsd'
1113	pre_args += '-D_ISOC11_SOURCE'
1114	endif
1115
1116	# Check for generic C arguments
1117	c_msvc_compat_args = []
1118	no_override_init_args = []
1119	cpp_msvc_compat_args = []
1120	if cc.get_id() == 'msvc'
1121	foreach a : ['/wd4018', # signed/unsigned mismatch
1122	'/wd4056', # overflow in floating-point constant arithmetic
1123	'/wd4244', # conversion from 'type1' to 'type2', possible loss of data
1124	'/wd4267', # 'var' : conversion from 'size_t' to 'type', possible loss of data
1125	'/wd4305', # trancation from 'type1' to 'type2'
1126	'/wd4351', # new behavior: elements of array 'array' will be default initialized
1127	'/wd4756', # overflow in constant arithmetic
1128	'/wd4800', # forcing value to bool 'true' or 'false' (performance warning)
1129	'/wd4996', # disabled deprecated POSIX name warnings
1130	'/wd4291', # no matching operator delete found
1131	'/wd4146', # unary minus operator applied to unsigned type, result still unsigned
1132	'/wd4200', # nonstandard extension used: zero-sized array in struct/union
1133	'/wd4624', # destructor was implicitly defined as deleted [from LLVM]
1134	'/wd4309', # 'initializing': truncation of constant value
1135	'/wd4838', # conversion from 'int' to 'const char' requires a narrowing conversion
1136	'/wd5105', # macro expansion producing 'defined' has undefined behavior (winbase.h, need Windows SDK upgrade)
1137	'/we4020', # Error when passing the wrong number of parameters
1138	'/we4024', # Error when passing different type of parameter
1139	'/Zc:__cplusplus', #Set __cplusplus macro to match the /std:c++<version> on the command line
1140	]
1141	if cc.has_argument(a)
1142	c_args += a
1143	endif
1144	if cpp.has_argument(a)
1145	cpp_args += a
1146	endif
1147	endforeach
1148	else
1149	_trial = [
1150	'-Werror=implicit-function-declaration',
1151	'-Werror=missing-prototypes',
1152	'-Werror=return-type',
1153	'-Werror=empty-body',
1154	'-Werror=incompatible-pointer-types',
1155	'-Werror=int-conversion',
1156	'-Wimplicit-fallthrough',
1157	'-Wno-missing-field-initializers',
1158	'-Wno-format-truncation',
1159	'-fno-math-errno',
1160	'-fno-trapping-math',
1161	'-Qunused-arguments',
1162	'-fno-common',
1163	]
1164	# MinGW chokes on format specifiers and I can't get it all working
1165	if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1166	_trial += ['-Werror=format', '-Wformat-security']
1167	endif
1168	# FreeBSD annotated <pthread.h> but Mesa isn't ready
1169	if not (cc.get_id() == 'clang' and host_machine.system() == 'freebsd')
1170	_trial += ['-Werror=thread-safety']
1171	endif
1172	foreach a : _trial
1173	if cc.has_argument(a)
1174	c_args += a
1175	endif
1176	endforeach
1177
1178	_trial = [
1179	'-Werror=return-type',
1180	'-Werror=empty-body',
1181	'-Wno-non-virtual-dtor',
1182	'-Wno-missing-field-initializers',
1183	'-Wno-format-truncation',
1184	'-fno-math-errno',
1185	'-fno-trapping-math',
1186	'-Qunused-arguments',
1187	# Some classes use custom new operator which zeroes memory, however
1188	# gcc does aggressive dead-store elimination which threats all writes
1189	# to the memory before the constructor as "dead stores".
1190	# For now we disable this optimization.
1191	'-flifetime-dse=1',
1192	]
1193	# MinGW chokes on format specifiers and I can't get it all working
1194	if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1195	_trial += ['-Werror=format', '-Wformat-security']
1196	endif
1197	foreach a : _trial
1198	if cpp.has_argument(a)
1199	cpp_args += a
1200	endif
1201	endforeach
1202
1203	foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1204	if cc.has_argument(a)
1205	no_override_init_args += a
1206	endif
1207	endforeach
1208
1209	# Check for C and C++ arguments for MSVC compatibility. These are only used
1210	# in parts of the mesa code base that need to compile with MSVC, mainly
1211	# common code
1212	foreach a : ['-Werror=pointer-arith', '-Werror=gnu-empty-initializer']
1213	if cc.has_argument(a)
1214	c_msvc_compat_args += a
1215	endif
1216	if cpp.has_argument(a)
1217	cpp_msvc_compat_args += a
1218	endif
1219	endforeach
1220
1221	if cc.has_argument('-Wmicrosoft-enum-value') # Clang
1222	c_args += '-Wno-microsoft-enum-value'
1223	cpp_args += '-Wno-microsoft-enum-value'
1224	endif
1225	endif
1226
1227	# set linker arguments
1228	if host_machine.system() == 'windows'
1229	if cc.get_id() == 'msvc'
1230	add_project_link_arguments(
1231	'/fixed:no',
1232	'/dynamicbase',
1233	'/nxcompat',
1234	language : ['c', 'cpp'],
1235	)
1236	if get_option('buildtype') != 'debug'
1237	add_project_link_arguments(
1238	'/incremental:no',
1239	language : ['c', 'cpp'],
1240	)
1241	endif
1242	else
1243	add_project_link_arguments(
1244	cc.get_supported_link_arguments(
1245	'-Wl,--nxcompat',
1246	'-Wl,--dynamicbase',
1247	'-static-libgcc',
1248	'-static-libstdc++',
1249	),
1250	language : ['c'],
1251	)
1252	add_project_link_arguments(
1253	cpp.get_supported_link_arguments(
1254	'-Wl,--nxcompat',
1255	'-Wl,--dynamicbase',
1256	'-static-libgcc',
1257	'-static-libstdc++',
1258	),
1259	language : ['cpp'],
1260	)
1261	endif
1262	endif
1263
1264	if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1265	pre_args += '-DUSE_SSE41'
1266	with_sse41 = true
1267	sse41_args = ['-msse4.1']
1268
1269	if host_machine.cpu_family() == 'x86'
1270	if get_option('sse2')
1271	# These settings make generated GCC code match MSVC and follow
1272	# GCC advice on https://gcc.gnu.org/wiki/FloatingPointMath#x86note
1273	#
1274	# NOTE: We need to ensure stack is realigned given that we
1275	# produce shared objects, and have no control over the stack
1276	# alignment policy of the application. Therefore we need
1277	# -mstackrealign or -mincoming-stack-boundary=2.
1278	#
1279	# XXX: We could have SSE without -mstackrealign if we always used
1280	# __attribute__((force_align_arg_pointer)), but that's not
1281	# always the case.
1282	c_args += ['-msse2', '-mfpmath=sse', '-mstackrealign']
1283	else
1284	# GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1285	# that's not guaranteed
1286	sse41_args += '-mstackrealign'
1287	endif
1288	endif
1289	else
1290	with_sse41 = false
1291	sse41_args = []
1292	endif
1293
1294	# Check for GCC style atomics
1295	dep_atomic = null_dep
1296
1297	if cc.compiles('''#include <stdint.h>
1298	int main() {
1299	struct {
1300	uint64_t *v;
1301	} x;
1302	return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1303	(int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1304
1305	}''',
1306	name : 'GCC atomic builtins')
1307	pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1308
1309	# Not all atomic calls can be turned into lock-free instructions, in which
1310	# GCC will make calls into the libatomic library. Check whether we need to
1311	# link with -latomic.
1312	#
1313	# This can happen for 64-bit atomic operations on 32-bit architectures such
1314	# as ARM.
1315	if not cc.links('''#include <stdint.h>
1316	int main() {
1317	struct {
1318	uint64_t *v;
1319	} x;
1320	return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1321	(int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1322	}''',
1323	name : 'GCC atomic builtins required -latomic')
1324	dep_atomic = cc.find_library('atomic')
1325	endif
1326	endif
1327	if not cc.links('''#include <stdint.h>
1328	uint64_t v;
1329	int main() {
1330	return __sync_add_and_fetch(&v, (uint64_t)1);
1331	}''',
1332	dependencies : dep_atomic,
1333	name : 'GCC 64bit atomics')
1334	pre_args += '-DMISSING_64BIT_ATOMICS'
1335	endif
1336
1337	dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1338
1339	# TODO: shared/static? Is this even worth doing?
1340
1341	with_asm_arch = ''
1342	if host_machine.cpu_family() == 'x86'
1343	if system_has_kms_drm or host_machine.system() == 'gnu'
1344	with_asm_arch = 'x86'
1345	pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1346	'-DUSE_SSE_ASM']
1347
1348	if with_glx_read_only_text
1349	pre_args += ['-DGLX_X86_READONLY_TEXT']
1350	endif
1351	endif
1352	elif host_machine.cpu_family() == 'x86_64'
1353	if system_has_kms_drm
1354	with_asm_arch = 'x86_64'
1355	pre_args += ['-DUSE_X86_64_ASM']
1356	endif
1357	elif host_machine.cpu_family() == 'arm'
1358	if system_has_kms_drm
1359	with_asm_arch = 'arm'
1360	pre_args += ['-DUSE_ARM_ASM']
1361	endif
1362	elif host_machine.cpu_family() == 'aarch64'
1363	if system_has_kms_drm
1364	with_asm_arch = 'aarch64'
1365	pre_args += ['-DUSE_AARCH64_ASM']
1366	endif
1367	elif host_machine.cpu_family() == 'sparc64'
1368	if system_has_kms_drm
1369	with_asm_arch = 'sparc'
1370	pre_args += ['-DUSE_SPARC_ASM']
1371	endif
1372	elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1373	if system_has_kms_drm
1374	with_asm_arch = 'ppc64le'
1375	pre_args += ['-DUSE_PPC64LE_ASM']
1376	endif
1377	elif host_machine.cpu_family() == 'mips64' and host_machine.endian() == 'little'
1378	if system_has_kms_drm
1379	with_asm_arch = 'mips64el'
1380	pre_args += ['-DUSE_MIPS64EL_ASM']
1381	endif
1382	endif
1383
1384	# Check for standard headers and functions
1385	if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1386	cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1387	cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1388	pre_args += '-DMAJOR_IN_SYSMACROS'
1389	endif
1390	if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1391	cc.has_header_symbol('sys/mkdev.h', 'minor') and
1392	cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1393	pre_args += '-DMAJOR_IN_MKDEV'
1394	endif
1395
1396	if cc.check_header('sched.h')
1397	pre_args += '-DHAS_SCHED_H'
1398	if cc.has_function('sched_getaffinity')
1399	pre_args += '-DHAS_SCHED_GETAFFINITY'
1400	endif
1401	endif
1402
1403	if not ['linux'].contains(host_machine.system())
1404	# Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1405	if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1406	pre_args += '-DHAVE_SYS_SYSCTL_H'
1407	endif
1408	endif
1409
1410	foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'sys/shm.h', 'cet.h', 'pthread_np.h']
1411	if cc.check_header(h)
1412	pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1413	endif
1414	endforeach
1415
1416	foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r',
1417	'flock', 'strtok_r', 'getrandom', 'qsort_r', 'qsort_s']
1418	if cc.has_function(f)
1419	pre_args += '-DHAVE_@0@'.format(f.to_upper())
1420	endif
1421	endforeach
1422
1423	if cc.has_header_symbol('errno.h', 'program_invocation_name',
1424	args : '-D_GNU_SOURCE')
1425	pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1426	elif with_tools.contains('intel')
1427	error('Intel tools require the program_invocation_name variable')
1428	endif
1429
1430	# MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1431	# This means that this check will succeed, but then compilation will later
1432	# fail. MSVC doesn't have this function at all, so only check for it on
1433	# non-windows platforms.
1434	if host_machine.system() != 'windows'
1435	if cc.has_function('posix_memalign')
1436	pre_args += '-DHAVE_POSIX_MEMALIGN'
1437	endif
1438	endif
1439
1440	if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1441	#include <dirent.h>''')
1442	pre_args += '-DHAVE_DIRENT_D_TYPE'
1443	endif
1444
1445	# strtod locale support
1446	if cc.links('''
1447	#define _GNU_SOURCE
1448	#include <stdlib.h>
1449	#include <locale.h>
1450	#ifdef HAVE_XLOCALE_H
1451	#include <xlocale.h>
1452	#endif
1453	int main() {
1454	locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1455	const char *s = "1.0";
1456	char *end;
1457	double d = strtod_l(s, end, loc);
1458	float f = strtof_l(s, end, loc);
1459	freelocale(loc);
1460	return 0;
1461	}''',
1462	args : pre_args,
1463	name : 'strtod has locale support')
1464	pre_args += '-DHAVE_STRTOD_L'
1465	endif
1466
1467	# Check for some linker flags
1468	ld_args_bsymbolic = []
1469	if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1470	ld_args_bsymbolic += '-Wl,-Bsymbolic'
1471	endif
1472	ld_args_gc_sections = []
1473	if cc.links('static char unused() { return 5; } int main() { return 0; }',
1474	args : '-Wl,--gc-sections', name : 'gc-sections')
1475	ld_args_gc_sections += '-Wl,--gc-sections'
1476	endif
1477	with_ld_version_script = false
1478	if cc.links('int main() { return 0; }',
1479	args : '-Wl,--version-script=@0@'.format(
1480	join_paths(meson.source_root(), 'build-support/conftest.map')),
1481	name : 'version-script')
1482	with_ld_version_script = true
1483	endif
1484	with_ld_dynamic_list = false
1485	if cc.links('int main() { return 0; }',
1486	args : '-Wl,--dynamic-list=@0@'.format(
1487	join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1488	name : 'dynamic-list')
1489	with_ld_dynamic_list = true
1490	endif
1491
1492	ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1493
1494	# check for dl support
1495	dep_dl = null_dep
1496	if not cc.has_function('dlopen')
1497	dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1498	endif
1499	if cc.has_function('dladdr', dependencies : dep_dl)
1500	# This is really only required for megadrivers
1501	pre_args += '-DHAVE_DLADDR'
1502	endif
1503
1504	if cc.has_function('dl_iterate_phdr')
1505	pre_args += '-DHAVE_DL_ITERATE_PHDR'
1506	elif with_intel_vk
1507	error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1508	elif with_dri_i965 and with_shader_cache
1509	error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1510	endif
1511
1512	# Determine whether or not the rt library is needed for time functions
1513	if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1514	dep_clock = null_dep
1515	else
1516	dep_clock = cc.find_library('rt')
1517	endif
1518
1519	dep_zlib = dependency('zlib', version : '>= 1.2.3',
1520	fallback : ['zlib', 'zlib_dep'],
1521	required : get_option('zlib'))
1522	if dep_zlib.found()
1523	pre_args += '-DHAVE_ZLIB'
1524	endif
1525
1526	_zstd = get_option('zstd')
1527	if _zstd == 'true'
1528	_zstd = 'enabled'
1529	warning('zstd option "true" deprecated, please use "enabled" instead.')
1530	elif _zstd == 'false'
1531	_zstd = 'disabled'
1532	warning('zstd option "false" deprecated, please use "disabled" instead.')
1533	endif
1534	if _zstd != 'disabled'
1535	dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1536	if dep_zstd.found()
1537	pre_args += '-DHAVE_ZSTD'
1538	endif
1539	else
1540	dep_zstd = null_dep
1541	endif
1542
1543	with_compression = dep_zlib.found() or dep_zstd.found()
1544	if with_compression
1545	pre_args += '-DHAVE_COMPRESSION'
1546	elif with_shader_cache
1547	error('Shader Cache requires compression')
1548	endif
1549
1550	dep_thread = dependency('threads')
1551	if dep_thread.found() and host_machine.system() != 'windows'
1552	pre_args += '-DHAVE_PTHREAD'
1553	if host_machine.system() != 'netbsd' and cc.has_function(
1554	'pthread_setaffinity_np',
1555	dependencies : dep_thread,
1556	prefix : '#include <pthread.h>',
1557	args : '-D_GNU_SOURCE')
1558	pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1559	endif
1560	endif
1561	if host_machine.system() == 'darwin'
1562	dep_expat = meson.get_compiler('c').find_library('expat')
1563	elif host_machine.system() != 'windows'
1564	dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'],
1565	required: not with_platform_android)
1566	else
1567	dep_expat = null_dep
1568	endif
1569	# this only exists on linux so either this is linux and it will be found, or
1570	# it's not linux and wont
1571	dep_m = cc.find_library('m', required : false)
1572
1573	if host_machine.system() == 'windows'
1574	dep_regex = meson.get_compiler('c').find_library('regex', required : false)
1575	if not dep_regex.found()
1576	dep_regex = declare_dependency(compile_args : ['-DNO_REGEX'])
1577	endif
1578	else
1579	dep_regex = null_dep
1580	endif
1581
1582	if with_platform_haiku
1583	dep_network = cc.find_library('network')
1584	endif
1585
1586	# Check for libdrm. Various drivers have different libdrm version requirements,
1587	# but we always want to use the same version for all libdrm modules. That means
1588	# even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1589	# bar are both on use 2.4.3 for both of them
1590	dep_libdrm_amdgpu = null_dep
1591	dep_libdrm_radeon = null_dep
1592	dep_libdrm_nouveau = null_dep
1593	dep_libdrm_intel = null_dep
1594
1595	_drm_amdgpu_ver = '2.4.107'
1596	_drm_radeon_ver = '2.4.71'
1597	_drm_nouveau_ver = '2.4.102'
1598	_drm_intel_ver = '2.4.75'
1599	_drm_ver = '2.4.81'
1600
1601	_libdrm_checks = [
1602	['intel', with_dri_i915 or with_gallium_i915],
1603	['amdgpu', (with_amd_vk and not with_platform_windows) or with_gallium_radeonsi],
1604	['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1605	with_gallium_r300 or with_gallium_r600)],
1606	['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1607	]
1608
1609	# VC4 only needs core libdrm support of this version, not a libdrm_vc4
1610	# library.
1611	if with_gallium_vc4
1612	_drm_ver = '2.4.89'
1613	endif
1614
1615	# etnaviv only needs core libdrm
1616	if with_gallium_etnaviv
1617	_drm_ver = '2.4.89'
1618	endif
1619
1620	# Loop over the enables versions and get the highest libdrm requirement for all
1621	# active drivers.
1622	_drm_blame = ''
1623	foreach d : _libdrm_checks
1624	ver = get_variable('_drm_@0@_ver'.format(d[0]))
1625	if d[1] and ver.version_compare('>' + _drm_ver)
1626	_drm_ver = ver
1627	_drm_blame = d[0]
1628	endif
1629	endforeach
1630	if _drm_blame != ''
1631	message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1632	endif
1633
1634	# Then get each libdrm module
1635	foreach d : _libdrm_checks
1636	if d[1]
1637	set_variable(
1638	'dep_libdrm_' + d[0],
1639	dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1640	)
1641	endif
1642	endforeach
1643
1644	with_gallium_drisw_kms = false
1645	dep_libdrm = dependency(
1646	'libdrm', version : '>=' + _drm_ver,
1647	# GNU/Hurd includes egl_dri2, without drm.
1648	required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1649	)
1650	if dep_libdrm.found()
1651	pre_args += '-DHAVE_LIBDRM'
1652	if with_dri_platform == 'drm' and with_dri
1653	with_gallium_drisw_kms = true
1654	endif
1655	endif
1656
1657	llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1658	llvm_optional_modules = ['coroutines']
1659	if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1660	llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1661	if with_gallium_r600
1662	llvm_modules += 'asmparser'
1663	endif
1664	endif
1665	if with_gallium_opencl
1666	llvm_modules += [
1667	'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1668	'lto', 'option', 'objcarcopts', 'profiledata'
1669	]
1670	llvm_optional_modules += ['frontendopenmp']
1671	endif
1672	if with_clc
1673	llvm_modules += ['coverage', 'target', 'linker', 'irreader', 'option', 'libdriver', 'lto']
1674	endif
1675	if with_tests or with_gallium_softpipe
1676	llvm_modules += 'native'
1677	endif
1678
1679	if with_amd_vk or with_gallium_radeonsi
1680	_llvm_version = '>= 11.0.0'
1681	elif with_clc
1682	_llvm_version = '>= 10.0.0'
1683	elif with_gallium_opencl
1684	_llvm_version = '>= 8.0.0'
1685	elif with_gallium_swr
1686	_llvm_version = '>= 6.0.0'
1687	else
1688	_llvm_version = '>= 3.9.0'
1689	endif
1690
1691	_shared_llvm = get_option('shared-llvm')
1692	if _shared_llvm == 'true'
1693	_shared_llvm = 'enabled'
1694	warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1695	elif _shared_llvm == 'false'
1696	_shared_llvm = 'disabled'
1697	warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1698	endif
1699	if _shared_llvm == 'auto'
1700	_shared_llvm = (host_machine.system() != 'windows')
1701	else
1702	_shared_llvm = (_shared_llvm == 'enabled')
1703	endif
1704	_llvm = get_option('llvm')
1705	if _llvm == 'true'
1706	_llvm = 'enabled'
1707	warning('llvm option "true" deprecated, please use "enabled" instead.')
1708	elif _llvm == 'false'
1709	_llvm = 'disabled'
1710	warning('llvm option "false" deprecated, please use "disabled" instead.')
1711	endif
1712
1713	# the cmake method can only link statically, so don't attempt to use it if we
1714	# want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1715	# linking is requested, so we need to force the config-tool method to be used
1716	# in that case, but in 0.54.0 meson won't try the cmake method if shared
1717	# linking is requested.
1718	_llvm_method = 'auto'
1719	if meson.version().version_compare('< 0.54.0') and _shared_llvm
1720	_llvm_method = 'config-tool'
1721	endif
1722
1723	dep_llvm = null_dep
1724	with_llvm = false
1725	draw_with_llvm = get_option('draw-use-llvm')
1726	if _llvm != 'disabled'
1727	dep_llvm = dependency(
1728	'llvm',
1729	version : _llvm_version,
1730	modules : llvm_modules,
1731	optional_modules : llvm_optional_modules,
1732	required : (
1733	with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1734	with_gallium_opencl or with_clc or _llvm == 'enabled'
1735	),
1736	static : not _shared_llvm,
1737	method : _llvm_method,
1738	fallback : ['llvm', 'dep_llvm'],
1739	include_type : 'system',
1740	)
1741	with_llvm = dep_llvm.found()
1742	endif
1743	if with_llvm
1744	pre_args += '-DLLVM_AVAILABLE'
1745	pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1746	pre_args += '-DLLVM_IS_SHARED=@0@'.format(_shared_llvm.to_int())
1747
1748	if draw_with_llvm
1749	pre_args += '-DDRAW_LLVM_AVAILABLE'
1750	elif with_swrast_vk
1751	error('Lavapipe requires LLVM draw support.')
1752	elif with_gallium_swr
1753	error('SWR requires LLVM draw support.')
1754	endif
1755
1756	# LLVM can be built without rtti, turning off rtti changes the ABI of C++
1757	# programs, so we need to build all C++ code in mesa without rtti as well to
1758	# ensure that linking works.
1759	#
1760	# In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1761	# builtin llvm-config based finder. A new generic variable getter method
1762	# has also been added, so we'll use that if we can, to cover the cmake case.
1763	if dep_llvm.type_name() == 'internal'
1764	_rtti = subproject('llvm').get_variable('has_rtti', true)
1765	else
1766	# The CMake finder will return 'ON', the llvm-config will return 'YES'
1767	_rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1768	endif
1769	if not _rtti
1770	if with_gallium_opencl
1771	error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1772	endif
1773	if cc.get_id() == 'msvc'
1774	cpp_args += '/GR-'
1775	else
1776	cpp_args += '-fno-rtti'
1777	endif
1778	endif
1779
1780	if cc.get_id() == 'msvc'
1781	# Suppress "/DELAYLOAD:ole32.dll/shell32.dll ignored" warnings that LLVM adds
1782	add_project_link_arguments(
1783	'/ignore:4199',
1784	language : ['c', 'cpp'],
1785	)
1786	endif
1787	elif with_amd_vk and with_aco_tests
1788	error('ACO tests require LLVM, but LLVM is disabled.')
1789	elif with_gallium_radeonsi or with_gallium_swr or with_swrast_vk
1790	error('The following drivers require LLVM: RadeonSI, SWR, Lavapipe. One of these is enabled, but LLVM is disabled.')
1791	elif with_gallium_opencl
1792	error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1793	elif with_clc
1794	error('The CLC compiler requires LLVM, but LLVM is disabled.')
1795	else
1796	draw_with_llvm = false
1797	endif
1798
1799	with_opencl_spirv = (_opencl != 'disabled' and get_option('opencl-spirv')) or with_clc
1800	if with_opencl_spirv
1801	chosen_llvm_version_array = dep_llvm.version().split('.')
1802	chosen_llvm_version_major = chosen_llvm_version_array[0].to_int()
1803	chosen_llvm_version_minor = chosen_llvm_version_array[1].to_int()
1804
1805	# Require an SPIRV-LLVM-Translator version compatible with the chosen LLVM
1806	# one.
1807	_llvmspirvlib_version = [
1808	# This first version check is still needed as maybe LLVM 8.0 was picked but
1809	# we do not want to accept SPIRV-LLVM-Translator 8.0.0.1 as that version does
1810	# not have the required API and those are only available starting from
1811	# 8.0.1.3.
1812	'>= 8.0.1.3',
1813	'>= @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor),
1814	'< @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor + 1) ]
1815
1816	dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
1817	# LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
1818	dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : _llvmspirvlib_version)
1819	else
1820	dep_spirv_tools = null_dep
1821	dep_llvmspirvlib = null_dep
1822	endif
1823
1824	dep_clang = null_dep
1825	if with_clc
1826	llvm_libdir = dep_llvm.get_variable(cmake : 'LLVM_LIBRARY_DIR', configtool: 'libdir')
1827
1828	clang_modules = [
1829	'clangBasic', 'clangAST', 'clangCodeGen', 'clangLex',
1830	'clangDriver', 'clangFrontend', 'clangFrontendTool',
1831	'clangHandleCXX', 'clangHandleLLVM', 'clangSerialization',
1832	'clangSema', 'clangParse', 'clangEdit', 'clangAnalysis'
1833	]
1834
1835	dep_clang = []
1836	foreach m : clang_modules
1837	dep_clang += cpp.find_library(m, dirs : llvm_libdir, required : true)
1838	endforeach
1839	endif
1840
1841	# Be explicit about only using this lib on Windows, to avoid picking
1842	# up random libs with the generic name 'libversion'
1843	dep_version = null_dep
1844	if with_opencl_spirv and host_machine.system() == 'windows'
1845	dep_version = cpp.find_library('version')
1846	endif
1847
1848	with_opencl_native = _opencl != 'disabled' and get_option('opencl-native')
1849
1850	if (with_amd_vk or with_gallium_radeonsi or
1851	(with_gallium_opencl and with_opencl_native) or
1852	(with_gallium_r600 and with_llvm))
1853	if with_platform_windows
1854	dep_elf = dependency('libelf', required : false, fallback : ['libelf', 'libelf_dep'])
1855	else
1856	dep_elf = dependency('libelf', required : false)
1857	endif
1858	if not dep_elf.found()
1859	dep_elf = cc.find_library('elf')
1860	endif
1861	else
1862	dep_elf = null_dep
1863	endif
1864
1865	dep_glvnd = null_dep
1866	if with_glvnd
1867	dep_glvnd = dependency('libglvnd', version : '>= 1.3.2')
1868	pre_args += '-DUSE_LIBGLVND=1'
1869	endif
1870
1871	_valgrind = get_option('valgrind')
1872	if _valgrind == 'true'
1873	_valgrind = 'enabled'
1874	warning('valgrind option "true" deprecated, please use "enabled" instead.')
1875	elif _valgrind == 'false'
1876	_valgrind = 'disabled'
1877	warning('valgrind option "false" deprecated, please use "disabled" instead.')
1878	endif
1879	if _valgrind != 'disabled'
1880	dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1881	if dep_valgrind.found()
1882	pre_args += '-DHAVE_VALGRIND'
1883	endif
1884	else
1885	dep_valgrind = null_dep
1886	endif
1887
1888	# AddressSanitizer's leak reports need all the symbols to be present at exit to
1889	# decode well, which runs afoul of our dlopen()/dlclose()ing of the DRI drivers.
1890	# Set a flag so we can skip the dlclose for asan builds.
1891	if ['address', 'address,undefined'].contains(get_option('b_sanitize'))
1892	asan_c_args = ['-DBUILT_WITH_ASAN=1']
1893	else
1894	asan_c_args = ['-DBUILT_WITH_ASAN=0']
1895	endif
1896
1897	yacc_is_bison = true
1898
1899	if build_machine.system() == 'windows'
1900	# Prefer the winflexbison versions, they're much easier to install and have
1901	# better windows support.
1902
1903	prog_flex = find_program('win_flex', required : false)
1904	if prog_flex.found()
1905	# windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1906	# _fileno functions)
1907	prog_flex = [prog_flex, '--wincompat']
1908	if get_option('c_std') == 'c99'
1909	prog_flex += '-D__STDC_VERSION__=199901'
1910	endif
1911	else
1912	prog_flex = [find_program('flex', 'lex', required : with_any_opengl)]
1913	endif
1914	# Force flex to use const keyword in prototypes, as relies on __cplusplus or
1915	# __STDC__ macro to determine whether it's safe to use const keyword, but
1916	# MSVC only defines __STDC_VERSION__ for C11/C17.
1917	prog_flex += '-DYY_USE_CONST='
1918
1919	prog_flex_cpp = prog_flex
1920	if get_option('c_std') != 'c99'
1921	# Convince win_flex to use <inttypes.h> for C++ files
1922	prog_flex_cpp += '-D__STDC_VERSION__=199901'
1923	endif
1924
1925	prog_bison = find_program('win_bison', required : false)
1926	if not prog_bison.found()
1927	prog_bison = find_program('bison', 'yacc', required : with_any_opengl)
1928	endif
1929	else
1930	prog_bison = find_program('bison', required : false)
1931
1932	if not prog_bison.found()
1933	prog_bison = find_program('byacc', required : with_any_opengl)
1934	yacc_is_bison = false
1935	endif
1936
1937	# Disable deprecated keyword warnings, since we have to use them for
1938	# old-bison compat. See discussion in
1939	# https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1940	if find_program('bison', required : false, version : '> 2.3').found()
1941	prog_bison = [prog_bison, '-Wno-deprecated']
1942	endif
1943
1944	prog_flex = find_program('flex', required : with_any_opengl)
1945	prog_flex_cpp = prog_flex
1946	endif
1947
1948	dep_selinux = null_dep
1949	if get_option('selinux')
1950	if get_option('execmem') != true
1951	warning('execmem option is disabled, selinux will not be able to use execmem.')
1952	endif
1953	dep_selinux = dependency('libselinux')
1954	pre_args += '-DMESA_SELINUX'
1955	endif
1956
1957	if get_option('execmem')
1958	pre_args += '-DMESA_EXECMEM'
1959	endif
1960
1961	_libunwind = get_option('libunwind')
1962	if _libunwind == 'true'
1963	_libunwind = 'enabled'
1964	warning('libunwind option "true" deprecated, please use "enabled" instead.')
1965	elif _libunwind == 'false'
1966	_libunwind = 'disabled'
1967	warning('libunwind option "false" deprecated, please use "disabled" instead.')
1968	endif
1969	if _libunwind != 'disabled' and not with_platform_android
1970	if host_machine.system() == 'darwin'
1971	dep_unwind = meson.get_compiler('c').find_library('System')
1972	else
1973	dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1974	endif
1975	if dep_unwind.found()
1976	pre_args += '-DHAVE_LIBUNWIND'
1977	endif
1978	else
1979	dep_unwind = null_dep
1980	endif
1981
1982	if with_osmesa
1983	if not with_gallium_softpipe
1984	error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1985	endif
1986	if host_machine.system() == 'windows'
1987	osmesa_lib_name = 'osmesa'
1988	else
1989	osmesa_lib_name = 'OSMesa'
1990	endif
1991	osmesa_bits = get_option('osmesa-bits')
1992	if osmesa_bits != '8'
1993	if with_dri or with_glx != 'disabled'
1994	error('OSMesa bits must be 8 if building glx or dri based drivers')
1995	endif
1996	osmesa_lib_name = osmesa_lib_name + osmesa_bits
1997	pre_args += [
1998	'-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1999	]
2000	endif
2001	endif
2002
2003	# TODO: symbol mangling
2004
2005	if with_platform_wayland
2006	dep_wl_scanner = dependency('wayland-scanner', native: true)
2007	prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
2008	if dep_wl_scanner.version().version_compare('>= 1.15')
2009	wl_scanner_arg = 'private-code'
2010	else
2011	wl_scanner_arg = 'code'
2012	endif
2013	dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
2014	dep_wayland_client = dependency('wayland-client', version : '>=1.18')
2015	dep_wayland_server = dependency('wayland-server', version : '>=1.18')
2016	if with_egl
2017	dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
2018	dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
2019	endif
2020	wayland_dmabuf_xml = join_paths(
2021	dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
2022	'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
2023	)
2024	pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
2025	endif
2026
2027	dep_x11 = null_dep
2028	dep_xext = null_dep
2029	dep_xfixes = null_dep
2030	dep_x11_xcb = null_dep
2031	dep_xcb = null_dep
2032	dep_xcb_glx = null_dep
2033	dep_xcb_dri2 = null_dep
2034	dep_xcb_dri3 = null_dep
2035	dep_dri2proto = null_dep
2036	dep_glproto = null_dep
2037	dep_xxf86vm = null_dep
2038	dep_xcb_dri3 = null_dep
2039	dep_xcb_present = null_dep
2040	dep_xcb_sync = null_dep
2041	dep_xcb_xfixes = null_dep
2042	dep_xshmfence = null_dep
2043	dep_xcb_xrandr = null_dep
2044	dep_xcb_shm = null_dep
2045	dep_xlib_xrandr = null_dep
2046	dep_openmp = null_dep
2047
2048	# Even if we find OpenMP, Gitlab CI fails to link with gcc/i386 and clang/anyarch.
2049	if host_machine.cpu_family() == 'x86_64' and cc.get_id() == 'gcc'
2050	dep_openmp = dependency('openmp', required : false)
2051	if dep_openmp.found()
2052	pre_args += ['-DHAVE_OPENMP']
2053	endif
2054	endif
2055
2056	if with_platform_x11
2057	if with_glx == 'xlib' or with_glx == 'gallium-xlib'
2058	dep_x11 = dependency('x11')
2059	dep_xext = dependency('xext')
2060	dep_xcb = dependency('xcb')
2061	elif with_glx == 'dri'
2062	dep_x11 = dependency('x11')
2063	dep_xext = dependency('xext')
2064	dep_xfixes = dependency('xfixes', version : '>= 2.0')
2065	dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
2066	dep_xcb_shm = dependency('xcb-shm')
2067	endif
2068	if (with_any_vk or with_glx == 'dri' or with_egl or
2069	(with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
2070	with_gallium_omx != 'disabled'))
2071	dep_xcb = dependency('xcb')
2072	dep_x11_xcb = dependency('x11-xcb')
2073	if with_dri_platform == 'drm' and not dep_libdrm.found()
2074	error('libdrm required for gallium video statetrackers when using x11')
2075	endif
2076	endif
2077	if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
2078	dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
2079
2080	if with_dri3
2081	pre_args += '-DHAVE_DRI3'
2082	dep_xcb_dri3 = dependency('xcb-dri3')
2083	dep_xcb_present = dependency('xcb-present')
2084	# until xcb-dri3 has been around long enough to make a hard-dependency:
2085	if (dep_xcb_dri3.version().version_compare('>= 1.13') and
2086	dep_xcb_present.version().version_compare('>= 1.13'))
2087	pre_args += '-DHAVE_DRI3_MODIFIERS'
2088	endif
2089	dep_xcb_shm = dependency('xcb-shm')
2090	dep_xcb_sync = dependency('xcb-sync')
2091	dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
2092	endif
2093	endif
2094	if with_glx == 'dri' or with_glx == 'gallium-xlib'
2095	dep_glproto = dependency('glproto', version : '>= 1.4.14')
2096	endif
2097	if with_glx == 'dri'
2098	if with_dri_platform == 'drm'
2099	dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
2100	if with_glx_direct
2101	dep_xxf86vm = dependency('xxf86vm')
2102	endif
2103	endif
2104	endif
2105	if (with_egl or
2106	with_dri3 or (
2107	with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
2108	with_gallium_omx != 'disabled'))
2109	dep_xcb_xfixes = dependency('xcb-xfixes')
2110	endif
2111	if with_xlib_lease or with_any_vk
2112	dep_xcb_xrandr = dependency('xcb-randr')
2113	endif
2114	if with_xlib_lease
2115	dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
2116	endif
2117	endif
2118
2119	if get_option('gallium-extra-hud')
2120	pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
2121	endif
2122
2123	_sensors = get_option('lmsensors')
2124	if _sensors == 'true'
2125	_sensors = 'enabled'
2126	warning('lmsensors option "true" deprecated, please use "enabled" instead.')
2127	elif _sensors == 'false'
2128	_sensors = 'disabled'
2129	warning('lmsensors option "false" deprecated, please use "disabled" instead.')
2130	endif
2131	if _sensors != 'disabled'
2132	dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
2133	if dep_lmsensors.found()
2134	pre_args += '-DHAVE_LIBSENSORS=1'
2135	endif
2136	else
2137	dep_lmsensors = null_dep
2138	endif
2139
2140	_shader_replacement = get_option('custom-shader-replacement')
2141	if _shader_replacement == ''
2142	else
2143	pre_args += '-DCUSTOM_SHADER_REPLACEMENT'
2144	endif
2145
2146	with_perfetto = get_option('perfetto')
2147	with_datasources = get_option('datasources')
2148	with_any_datasource = with_datasources.length() != 0
2149	if with_perfetto
2150	dep_perfetto = dependency('perfetto', fallback: ['perfetto', 'dep_perfetto'])
2151	pre_args += '-DHAVE_PERFETTO'
2152	endif
2153
2154	# If the compiler supports it, put function and data symbols in their
2155	# own sections and GC the sections after linking. This lets drivers
2156	# drop shared code unused by that specific driver (particularly
2157	# relevant for Vulkan drivers).
2158	if cc.has_link_argument('-Wl,--gc-sections')
2159	foreach a: ['-ffunction-sections', '-fdata-sections']
2160	if cc.has_argument(a)
2161	add_project_arguments(a, language : ['c', 'cpp'])
2162	endif
2163	endforeach
2164	endif
2165
2166	foreach a : pre_args
2167	add_project_arguments(a, language : ['c', 'cpp'])
2168	endforeach
2169	foreach a : c_args
2170	add_project_arguments(a, language : ['c'])
2171	endforeach
2172	foreach a : cpp_args
2173	add_project_arguments(a, language : ['cpp'])
2174	endforeach
2175
2176	gl_priv_reqs = []
2177
2178	if with_glx == 'xlib' or with_glx == 'gallium-xlib'
2179	gl_priv_reqs += ['x11', 'xext', 'xcb']
2180	elif with_glx == 'dri'
2181	gl_priv_reqs += [
2182	'x11', 'xext', 'xfixes', 'x11-xcb', 'xcb',
2183	'xcb-glx >= 1.8.1']
2184	if with_dri_platform == 'drm'
2185	gl_priv_reqs += 'xcb-dri2 >= 1.8'
2186	if with_glx_direct
2187	gl_priv_reqs += 'xxf86vm'
2188	endif
2189	endif
2190	endif
2191	if dep_libdrm.found()
2192	gl_priv_reqs += 'libdrm >= 2.4.75'
2193	endif
2194
2195	gl_priv_libs = []
2196	if dep_thread.found()
2197	gl_priv_libs += ['-lpthread', '-pthread']
2198	endif
2199	if dep_m.found()
2200	gl_priv_libs += '-lm'
2201	endif
2202	if dep_dl.found()
2203	gl_priv_libs += '-ldl'
2204	endif
2205
2206	# FIXME: autotools lists this as incomplete
2207	gbm_priv_libs = []
2208	if dep_dl.found()
2209	gbm_priv_libs += '-ldl'
2210	endif
2211
2212	pkg = import('pkgconfig')
2213
2214	if host_machine.system() == 'windows'
2215	prog_dumpbin = find_program('dumpbin', required : false)
2216	with_symbols_check = prog_dumpbin.found() and with_tests
2217	if with_symbols_check
2218	symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
2219	endif
2220	else
2221	prog_nm = find_program('nm')
2222	with_symbols_check = with_tests
2223	symbols_check_args = ['--nm', prog_nm.path()]
2224	endif
2225
2226	# This quirk needs to be applied to sources with functions defined in assembly
2227	# as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
2228	gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
2229
2230	subdir('include')
2231	subdir('bin')
2232	subdir('src')
2233
2234	# Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
2235	# formatting below unless the first argument is passed as a variable. This has
2236	# been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
2237	# for backwards compatibility.
2238	_with_opengl_string = with_opengl ? 'yes' : 'no'
2239
2240	lines = ['',
2241	'prefix: ' + get_option('prefix'),
2242	'libdir: ' + get_option('libdir'),
2243	'includedir: ' + get_option('includedir'),
2244	'',
2245	'OpenGL: @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
2246	with_gles1 ? 'yes' : 'no',
2247	with_gles2 ? 'yes' : 'no'),
2248	]
2249
2250	if with_osmesa
2251	lines += ''
2252	lines += 'OSMesa: lib' + osmesa_lib_name
2253	else
2254	lines += 'OSMesa: no'
2255	endif
2256
2257	if with_dri
2258	lines += ''
2259	lines += 'DRI platform: ' + with_dri_platform
2260	if dri_drivers.length() != 0 and dri_drivers != ['']
2261	lines += 'DRI drivers: ' + ' '.join(dri_drivers)
2262	else
2263	lines += 'DRI drivers: no'
2264	endif
2265	lines += 'DRI driver dir: ' + dri_drivers_path
2266	endif
2267
2268	if with_glx != 'disabled'
2269	lines += ''
2270	if with_glx == 'dri'
2271	lines += 'GLX: DRI-based'
2272	elif with_glx == 'xlib'
2273	lines += 'GLX: Xlib-based'
2274	elif with_glx == 'gallium-xlib'
2275	lines += 'GLX: Xlib-based (Gallium)'
2276	else
2277	lines += 'GLX: ' + with_glx
2278	endif
2279	endif
2280
2281	lines += ''
2282	lines += 'EGL: ' + (with_egl ? 'yes' : 'no')
2283	if with_egl
2284	egl_drivers = []
2285	if with_dri
2286	egl_drivers += 'builtin:egl_dri2'
2287	endif
2288	if with_dri3
2289	egl_drivers += 'builtin:egl_dri3'
2290	endif
2291	if with_platform_windows
2292	egl_drivers += 'builtin:wgl'
2293	endif
2294	lines += 'EGL drivers: ' + ' '.join(egl_drivers)
2295	endif
2296	if with_egl or with_any_vk
2297	lines += 'EGL/Vulkan/VL platforms: ' + ' '.join(_platforms)
2298	endif
2299	lines += 'GBM: ' + (with_gbm ? 'yes' : 'no')
2300	if with_gbm
2301	lines += 'GBM backends path: ' + gbm_backends_path
2302	endif
2303
2304	lines += ''
2305	if with_any_vk
2306	lines += 'Vulkan drivers: ' + ' '.join(_vulkan_drivers)
2307	lines += 'Vulkan ICD dir: ' + with_vulkan_icd_dir
2308	if with_any_vulkan_layers
2309	lines += 'Vulkan layers: ' + ' '.join(get_option('vulkan-layers'))
2310	endif
2311	else
2312	lines += 'Vulkan drivers: no'
2313	endif
2314
2315	lines += ''
2316	if with_llvm
2317	lines += 'llvm: yes'
2318	lines += 'llvm-version: ' + dep_llvm.version()
2319	else
2320	lines += 'llvm: no'
2321	endif
2322
2323	lines += ''
2324	if with_gallium
2325	lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
2326	gallium_st = ['mesa']
2327	if with_gallium_xa
2328	gallium_st += 'xa'
2329	endif
2330	if with_gallium_xvmc
2331	gallium_st += 'xvmc'
2332	endif
2333	if with_gallium_vdpau
2334	gallium_st += 'vdpau'
2335	endif
2336	if with_gallium_omx != 'disabled'
2337	gallium_st += 'omx' + with_gallium_omx
2338	endif
2339	if with_gallium_va
2340	gallium_st += 'va'
2341	endif
2342	if with_gallium_st_nine
2343	gallium_st += 'nine'
2344	endif
2345	if with_gallium_opencl
2346	gallium_st += 'clover'
2347	endif
2348	lines += 'Gallium st: ' + ' '.join(gallium_st)
2349	else
2350	lines += 'Gallium: no'
2351	endif
2352
2353	lines += 'HUD lmsensors: ' + (dep_lmsensors.found() ? 'yes' : 'no')
2354
2355	lines += ''
2356	lines += 'Shared-glapi: ' + (with_shared_glapi ? 'yes' : 'no')
2357
2358	lines += ''
2359	lines += 'Perfetto: ' + (with_perfetto ? 'yes' : 'no')
2360	if with_any_datasource
2361	lines += 'Perfetto ds: ' + ' '.join(with_datasources)
2362	endif
2363
2364
2365	indent = ' '
2366	summary = indent + ('\n' + indent).join(lines)
2367	message('Configuration summary:\n@0@\n'.format(summary))

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