meson.build

   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('python', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.52',
  29   default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c99', 'cpp_std=c++14']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 if get_option('layout') != 'mirror'
  38   error('`mirror` is the only build directory layout supported')
  39 endif
  40
  41 # Arguments for the preprocessor, put these in a separate array from the C and
  42 # C++ (cpp in meson terminology) arguments since they need to be added to the
  43 # default arguments for both C and C++.
  44 pre_args = [
  45   '-D__STDC_CONSTANT_MACROS',
  46   '-D__STDC_FORMAT_MACROS',
  47   '-D__STDC_LIMIT_MACROS',
  48   '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
  49   '-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"',
  50 ]
  51
  52 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  53 with_tests = get_option('build-tests')
  54 with_aco_tests = get_option('build-aco-tests')
  55 with_glx_read_only_text = get_option('glx-read-only-text')
  56 with_glx_direct = get_option('glx-direct')
  57 with_osmesa = get_option('osmesa')
  58 with_swr_arches = get_option('swr-arches')
  59 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  60 with_tools = get_option('tools')
  61 if with_tools.contains('all')
  62   with_tools = [
  63     'drm-shim',
  64     'etnaviv',
  65     'freedreno',
  66     'glsl',
  67     'intel',
  68     'intel-ui',
  69     'lima',
  70     'nir',
  71     'nouveau',
  72     'xvmc',
  73   ]
  74 endif
  75
  76 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  77 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  78
  79 dri_drivers_path = get_option('dri-drivers-path')
  80 if dri_drivers_path == ''
  81   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  82 endif
  83 dri_search_path = get_option('dri-search-path')
  84 if dri_search_path == ''
  85   dri_search_path = dri_drivers_path
  86 endif
  87
  88 with_gles1 = get_option('gles1')
  89 if with_gles1 == 'true'
  90   with_gles1 = 'enabled'
  91   warning('gles1 option "true" deprecated, please use "enabled" instead.')
  92 elif with_gles1 == 'false'
  93   with_gles1 = 'disabled'
  94   warning('gles1 option "false" deprecated, please use "disabled" instead.')
  95 endif
  96 with_gles2 = get_option('gles2')
  97 if with_gles2 == 'true'
  98   with_gles2 = 'enabled'
  99   warning('gles2 option "true" deprecated, please use "enabled" instead.')
 100 elif with_gles2 == 'false'
 101   with_gles2 = 'disabled'
 102   warning('gles2 option "false" deprecated, please use "disabled" instead.')
 103 endif
 104 if host_machine.system() == 'windows'
 105   if with_gles1 == 'auto'
 106     with_gles1 = 'disabled'
 107   endif
 108   if with_gles2 == 'auto'
 109     with_gles2 = 'disabled'
 110   endif
 111 endif
 112 with_opengl = get_option('opengl')
 113
 114 # Default shared glapi off for windows, on elsewhere.
 115 _sg = get_option('shared-glapi')
 116 if _sg == 'true'
 117   _sg = 'enabled'
 118   warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
 119 elif _sg == 'false'
 120   _sg = 'disabled'
 121   warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
 122 endif
 123 if _sg == 'auto'
 124   with_shared_glapi = host_machine.system() != 'windows'
 125 else
 126   with_shared_glapi = _sg == 'enabled'
 127 endif
 128
 129 # shared-glapi is required if at least two OpenGL APIs are being built
 130 if not with_shared_glapi
 131   if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
 132       (with_gles1 == 'enabled' and with_opengl) or
 133       (with_gles2 == 'enabled' and with_opengl))
 134     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 135   endif
 136   with_gles1 = 'disabled'
 137   with_gles2 = 'disabled'
 138 endif
 139
 140 # We require OpenGL for OpenGL ES
 141 if not with_opengl
 142   if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
 143     error('building OpenGL ES without OpenGL is not supported.')
 144   endif
 145   with_gles1 = 'disabled'
 146   with_gles2 = 'disabled'
 147 endif
 148
 149 with_gles1 = with_gles1 != 'disabled'
 150 with_gles2 = with_gles2 != 'disabled'
 151 with_any_opengl = with_opengl or with_gles1 or with_gles2
 152 # Only build shared_glapi if at least one OpenGL API is enabled
 153 with_shared_glapi = with_shared_glapi and with_any_opengl
 154
 155 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 156
 157 dri_drivers = get_option('dri-drivers')
 158 if dri_drivers.contains('auto')
 159   if system_has_kms_drm
 160     # TODO: PPC, Sparc
 161     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 162       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 163     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 164       dri_drivers = []
 165     else
 166       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 167             host_machine.cpu_family()))
 168     endif
 169   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 170     # only swrast would make sense here, but gallium swrast is a much better default
 171     dri_drivers = []
 172   else
 173     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 174           host_machine.system()))
 175   endif
 176 endif
 177
 178 with_dri_i915 = dri_drivers.contains('i915')
 179 with_dri_i965 = dri_drivers.contains('i965')
 180 with_dri_r100 = dri_drivers.contains('r100')
 181 with_dri_r200 = dri_drivers.contains('r200')
 182 with_dri_nouveau = dri_drivers.contains('nouveau')
 183 with_dri_swrast = dri_drivers.contains('swrast')
 184
 185 with_dri = dri_drivers.length() != 0
 186
 187 gallium_drivers = get_option('gallium-drivers')
 188 if gallium_drivers.contains('auto')
 189   if system_has_kms_drm
 190     # TODO: PPC, Sparc
 191     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 192       gallium_drivers = [
 193         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 194         'iris'
 195       ]
 196     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 197       gallium_drivers = [
 198         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 199         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 200       ]
 201     else
 202       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 203             host_machine.cpu_family()))
 204     endif
 205   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 206     gallium_drivers = ['swrast']
 207   else
 208     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 209           host_machine.system()))
 210   endif
 211 endif
 212 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 213 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 214 with_gallium_r300 = gallium_drivers.contains('r300')
 215 with_gallium_r600 = gallium_drivers.contains('r600')
 216 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 217 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 218 with_gallium_softpipe = gallium_drivers.contains('swrast')
 219 with_gallium_vc4 = gallium_drivers.contains('vc4')
 220 with_gallium_v3d = gallium_drivers.contains('v3d')
 221 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 222 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 223 with_gallium_tegra = gallium_drivers.contains('tegra')
 224 with_gallium_iris = gallium_drivers.contains('iris')
 225 with_gallium_i915 = gallium_drivers.contains('i915')
 226 with_gallium_svga = gallium_drivers.contains('svga')
 227 with_gallium_virgl = gallium_drivers.contains('virgl')
 228 with_gallium_swr = gallium_drivers.contains('swr')
 229 with_gallium_lima = gallium_drivers.contains('lima')
 230 with_gallium_zink = gallium_drivers.contains('zink')
 231
 232 with_gallium = gallium_drivers.length() != 0
 233
 234 if with_gallium and system_has_kms_drm
 235   _glx = get_option('glx')
 236   _egl = get_option('egl')
 237   if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
 238     with_dri = true
 239   endif
 240 endif
 241
 242 _vulkan_drivers = get_option('vulkan-drivers')
 243 if _vulkan_drivers.contains('auto')
 244   if system_has_kms_drm
 245     if host_machine.cpu_family().startswith('x86')
 246       _vulkan_drivers = ['amd', 'intel']
 247     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 248       _vulkan_drivers = []
 249     else
 250       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 251             host_machine.cpu_family()))
 252     endif
 253   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 254     # No vulkan driver supports windows or macOS currently
 255     _vulkan_drivers = []
 256   else
 257     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 258           host_machine.system()))
 259   endif
 260 endif
 261
 262 with_intel_vk = _vulkan_drivers.contains('intel')
 263 with_amd_vk = _vulkan_drivers.contains('amd')
 264 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 265 with_any_vk = _vulkan_drivers.length() != 0
 266
 267 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 268   error('Only one swrast provider can be built')
 269 endif
 270 if with_dri_i915 and with_gallium_i915
 271   error('Only one i915 provider can be built')
 272 endif
 273 if with_gallium_kmsro and not (with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost or with_gallium_lima)
 274   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 275 endif
 276 if with_gallium_tegra and not with_gallium_nouveau
 277   error('tegra driver requires nouveau driver')
 278 endif
 279 if with_aco_tests and not with_amd_vk
 280   error('ACO tests require Radv')
 281 endif
 282
 283 if host_machine.system() == 'darwin'
 284   with_dri_platform = 'apple'
 285   pre_args += '-DBUILDING_MESA'
 286 elif ['windows', 'cygwin'].contains(host_machine.system())
 287   with_dri_platform = 'windows'
 288 elif system_has_kms_drm
 289   with_dri_platform = 'drm'
 290 else
 291   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 292   # assert here that one of those cases has been met.
 293   # FIXME: illumos ends up here as well
 294   with_dri_platform = 'none'
 295 endif
 296
 297 _platforms = get_option('platforms')
 298 if _platforms.contains('auto')
 299   if system_has_kms_drm
 300     _platforms = ['x11', 'wayland']
 301   elif ['darwin', 'cygwin'].contains(host_machine.system())
 302     _platforms = ['x11']
 303   elif ['haiku'].contains(host_machine.system())
 304     _platforms = ['haiku']
 305   elif host_machine.system() == 'windows'
 306     _platforms = ['windows']
 307   else
 308     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 309           host_machine.system()))
 310   endif
 311 endif
 312
 313 with_platform_android = _platforms.contains('android')
 314 with_platform_x11 = _platforms.contains('x11')
 315 with_platform_wayland = _platforms.contains('wayland')
 316 with_platform_haiku = _platforms.contains('haiku')
 317 with_platform_windows = _platforms.contains('windows')
 318
 319 if _platforms.contains('surfaceless')
 320   warning('Platform `surfaceless` is now always selected; setting this option will be an error in Mesa 20.3')
 321 endif
 322
 323 if _platforms.contains('drm')
 324   warning('Platform `drm` is now automatically selected; setting this option will be an error in Mesa 20.3')
 325 endif
 326
 327 if _platforms.length() != 0
 328   egl_native_platform = _platforms[0]
 329 else
 330   egl_native_platform = 'surfaceless'
 331 endif
 332
 333 with_glx = get_option('glx')
 334 if with_glx == 'auto'
 335   if with_dri
 336     with_glx = 'dri'
 337   elif with_platform_haiku
 338     with_glx = 'disabled'
 339   elif host_machine.system() == 'windows'
 340     with_glx = 'disabled'
 341   elif with_gallium
 342     # Even when building just gallium drivers the user probably wants dri
 343     with_glx = 'dri'
 344   elif with_platform_x11 and with_any_opengl and not with_any_vk
 345     # The automatic behavior should not be to turn on xlib based glx when
 346     # building only vulkan drivers
 347     with_glx = 'xlib'
 348   else
 349     with_glx = 'disabled'
 350   endif
 351 endif
 352 if with_glx == 'dri'
 353    if with_gallium
 354       with_dri = true
 355    endif
 356 endif
 357
 358 if not (with_dri or with_gallium or with_glx != 'disabled')
 359   with_gles1 = false
 360   with_gles2 = false
 361   with_opengl = false
 362   with_any_opengl = false
 363   with_shared_glapi = false
 364 endif
 365
 366 _gbm = get_option('gbm')
 367 if _gbm == 'true'
 368   _gbm = 'enabled'
 369   warning('gbm option "true" deprecated, please use "enabled" instead.')
 370 elif _gbm == 'false'
 371   _gbm = 'disabled'
 372   warning('gbm option "false" deprecated, please use "disabled" instead.')
 373 endif
 374 if _gbm == 'auto'
 375   with_gbm = system_has_kms_drm and with_dri
 376 else
 377   with_gbm = _gbm == 'enabled'
 378 endif
 379 if with_gbm and not system_has_kms_drm
 380   error('GBM only supports DRM/KMS platforms')
 381 endif
 382
 383 _xlib_lease = get_option('xlib-lease')
 384 if _xlib_lease == 'true'
 385   _xlib_lease = 'enabled'
 386   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 387 elif _xlib_lease == 'false'
 388   _xlib_lease = 'disabled'
 389   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 390 endif
 391 if _xlib_lease == 'auto'
 392   with_xlib_lease = with_platform_x11 and with_gbm
 393 else
 394   with_xlib_lease = _xlib_lease == 'enabled'
 395 endif
 396
 397 _egl = get_option('egl')
 398 if _egl == 'true'
 399   _egl = 'enabled'
 400   warning('egl option "true" deprecated, please use "enabled" instead.')
 401 elif _egl == 'false'
 402   _egl = 'disabled'
 403   warning('egl option "false" deprecated, please use "disabled" instead.')
 404 endif
 405 if _egl == 'auto'
 406   with_egl = (
 407     not ['darwin', 'windows'].contains(host_machine.system()) and
 408     with_dri and with_shared_glapi
 409   )
 410 elif _egl == 'enabled'
 411   if not with_dri
 412     error('EGL requires dri')
 413   elif not with_shared_glapi
 414     error('EGL requires shared-glapi')
 415   elif not ['disabled', 'dri'].contains(with_glx)
 416     error('EGL requires dri, but a GLX is being built without dri')
 417   elif ['darwin', 'windows'].contains(host_machine.system())
 418     error('EGL is not available on Windows or MacOS')
 419   endif
 420   with_egl = true
 421 else
 422   with_egl = false
 423 endif
 424
 425 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 426 if not ['windows', 'freebsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 427   pre_args += '-DUSE_ELF_TLS'
 428 endif
 429
 430 if with_glx != 'disabled'
 431   if not (with_platform_x11 and with_any_opengl)
 432     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 433   elif with_glx == 'gallium-xlib'
 434     if not with_gallium
 435       error('Gallium-xlib based GLX requires at least one gallium driver')
 436     elif not with_gallium_softpipe
 437       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 438     elif with_dri
 439       error('gallium-xlib conflicts with any dri driver')
 440     endif
 441   elif with_glx == 'xlib'
 442     if with_dri
 443       error('xlib conflicts with any dri driver')
 444     endif
 445   elif with_glx == 'dri'
 446     if not with_shared_glapi
 447       error('dri based GLX requires shared-glapi')
 448     endif
 449   endif
 450 endif
 451
 452 with_glvnd = get_option('glvnd')
 453 if with_glvnd
 454   if with_platform_windows
 455     error('glvnd cannot be used on Windows')
 456   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 457     error('Cannot build glvnd support for GLX that is not DRI based.')
 458   elif with_glx == 'disabled' and not with_egl
 459     error('glvnd requires DRI based GLX and/or EGL')
 460   endif
 461   if get_option('egl-lib-suffix') != ''
 462     error('''EGL lib suffix can't be used with libglvnd''')
 463   endif
 464 endif
 465
 466 if with_vulkan_icd_dir == ''
 467   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 468 endif
 469
 470 # GNU/Hurd includes egl_dri2, without drm.
 471 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 472   host_machine.system() == 'gnu')
 473 _dri3 = get_option('dri3')
 474 if _dri3 == 'true'
 475   _dri3 = 'enabled'
 476   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 477 elif _dri3 == 'false'
 478   _dri3 = 'disabled'
 479   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 480 endif
 481 if _dri3 == 'auto'
 482   with_dri3 = system_has_kms_drm and with_dri2
 483 else
 484   with_dri3 = _dri3 == 'enabled'
 485 endif
 486
 487 if with_any_vk and (with_platform_x11 and not with_dri3)
 488   error('Vulkan drivers require dri3 for X11 support')
 489 endif
 490 if with_dri
 491   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 492     error('building dri drivers require at least one windowing system or classic osmesa')
 493   endif
 494 endif
 495
 496 _vdpau = get_option('gallium-vdpau')
 497 if _vdpau == 'true'
 498   _vdpau = 'enabled'
 499   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 500 elif _vdpau == 'false'
 501   _vdpau = 'disabled'
 502   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 503 endif
 504 if not system_has_kms_drm
 505   if _vdpau == 'enabled'
 506     error('VDPAU state tracker can only be build on unix-like OSes.')
 507   else
 508     _vdpau = 'disabled'
 509   endif
 510 elif not with_platform_x11
 511   if _vdpau == 'enabled'
 512     error('VDPAU state tracker requires X11 support.')
 513   else
 514     _vdpau = 'disabled'
 515   endif
 516 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 517           with_gallium_nouveau)
 518   if _vdpau == 'enabled'
 519     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 520   else
 521     _vdpau = 'disabled'
 522   endif
 523 endif
 524 dep_vdpau = null_dep
 525 with_gallium_vdpau = false
 526 if _vdpau != 'disabled'
 527   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 528   if dep_vdpau.found()
 529     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 530     with_gallium_vdpau = true
 531   endif
 532 endif
 533
 534 if with_gallium_vdpau
 535   pre_args += '-DHAVE_ST_VDPAU'
 536 endif
 537 vdpau_drivers_path = get_option('vdpau-libs-path')
 538 if vdpau_drivers_path == ''
 539   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 540 endif
 541
 542 if with_gallium_zink
 543   dep_vulkan = dependency('vulkan')
 544 endif
 545
 546 _xvmc = get_option('gallium-xvmc')
 547 if _xvmc == 'true'
 548   _xvmc = 'enabled'
 549   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 550 elif _xvmc == 'false'
 551   _xvmc = 'disabled'
 552   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 553 endif
 554 if not system_has_kms_drm
 555   if _xvmc == 'enabled'
 556     error('XVMC state tracker can only be build on unix-like OSes.')
 557   else
 558     _xvmc = 'disabled'
 559   endif
 560 elif not with_platform_x11
 561   if _xvmc == 'enabled'
 562     error('XVMC state tracker requires X11 support.')
 563   else
 564     _xvmc = 'disabled'
 565   endif
 566 elif not (with_gallium_r600 or with_gallium_nouveau)
 567   if _xvmc == 'enabled'
 568     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 569   else
 570     _xvmc = 'disabled'
 571   endif
 572 endif
 573 dep_xvmc = null_dep
 574 dep_xv = null_dep
 575 with_gallium_xvmc = false
 576 if _xvmc != 'disabled'
 577   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 578   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 579   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 580 endif
 581
 582 xvmc_drivers_path = get_option('xvmc-libs-path')
 583 if xvmc_drivers_path == ''
 584   xvmc_drivers_path = get_option('libdir')
 585 endif
 586
 587 _omx = get_option('gallium-omx')
 588 if not system_has_kms_drm
 589   if ['auto', 'disabled'].contains(_omx)
 590     _omx = 'disabled'
 591   else
 592     error('OMX state tracker can only be built on unix-like OSes.')
 593   endif
 594 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 595   if ['auto', 'disabled'].contains(_omx)
 596     _omx = 'disabled'
 597   else
 598     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 599   endif
 600 endif
 601 with_gallium_omx = _omx
 602 dep_omx = null_dep
 603 dep_omx_other = []
 604 if ['auto', 'bellagio'].contains(_omx)
 605   dep_omx = dependency(
 606     'libomxil-bellagio', required : _omx == 'bellagio'
 607   )
 608   if dep_omx.found()
 609     with_gallium_omx = 'bellagio'
 610   endif
 611 endif
 612 if ['auto', 'tizonia'].contains(_omx)
 613   if with_dri and with_egl
 614     dep_omx = dependency(
 615       'libtizonia', version : '>= 0.10.0',
 616       required : _omx == 'tizonia',
 617     )
 618     dep_omx_other = [
 619       dependency('libtizplatform', required : _omx == 'tizonia'),
 620       dependency('tizilheaders', required : _omx == 'tizonia'),
 621     ]
 622     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 623       with_gallium_omx = 'tizonia'
 624     endif
 625   elif _omx == 'tizonia'
 626     error('OMX-Tizonia state tracker requires dri and egl')
 627   endif
 628 endif
 629 if _omx == 'auto'
 630   with_gallium_omx = 'disabled'
 631 else
 632   with_gallium_omx = _omx
 633 endif
 634
 635 pre_args += [
 636   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 637   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 638 ]
 639
 640
 641 omx_drivers_path = get_option('omx-libs-path')
 642
 643 if with_gallium_omx != 'disabled'
 644   # Figure out where to put the omx driver.
 645   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 646   # argument to meson's get_pkgconfig_variable method.
 647   if omx_drivers_path == ''
 648     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 649     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 650     if _omx_libdir == get_option('libdir')
 651       omx_drivers_path = _omx_drivers_dir
 652     else
 653       _omx_base_dir = []
 654       # This will fail on windows. Does OMX run on windows?
 655       _omx_libdir = _omx_libdir.split('/')
 656       _omx_drivers_dir = _omx_drivers_dir.split('/')
 657       foreach o : _omx_drivers_dir
 658         if not _omx_libdir.contains(o)
 659           _omx_base_dir += o
 660         endif
 661       endforeach
 662       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 663     endif
 664   endif
 665 endif
 666
 667 _va = get_option('gallium-va')
 668 if _va == 'true'
 669   _va = 'enabled'
 670   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 671 elif _va == 'false'
 672   _va = 'disabled'
 673   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 674 endif
 675 if not system_has_kms_drm
 676   if _va == 'enabled'
 677     error('VA state tracker can only be built on unix-like OSes.')
 678   else
 679     _va = 'disabled'
 680   endif
 681 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 682   if _va == 'enabled'
 683     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 684   else
 685     _va = 'disabled'
 686   endif
 687 endif
 688 with_gallium_va = false
 689 dep_va = null_dep
 690 if _va != 'disabled'
 691   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 692   if dep_va.found()
 693     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 694     with_gallium_va = true
 695   endif
 696 endif
 697
 698 va_drivers_path = get_option('va-libs-path')
 699 if va_drivers_path == ''
 700   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 701 endif
 702
 703 _xa = get_option('gallium-xa')
 704 if _xa == 'true'
 705   _xa = 'enabled'
 706   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 707 elif _xa == 'false'
 708   _xa = 'disabled'
 709   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 710 endif
 711 if not system_has_kms_drm
 712   if _xa == 'enabled'
 713     error('XA state tracker can only be built on unix-like OSes.')
 714   else
 715     _xa = 'disabled'
 716   endif
 717 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 718           or with_gallium_svga)
 719   if _xa == 'enabled'
 720     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 721   else
 722     _xa = 'disabled'
 723   endif
 724 endif
 725 with_gallium_xa = _xa != 'disabled'
 726
 727 d3d_drivers_path = get_option('d3d-drivers-path')
 728 if d3d_drivers_path == ''
 729   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 730 endif
 731
 732 with_gallium_st_nine =  get_option('gallium-nine')
 733 if with_gallium_st_nine
 734   if not with_gallium_softpipe
 735     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 736   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 737             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 738             or with_gallium_iris)
 739     error('The nine state tracker requires at least one non-swrast gallium driver.')
 740   endif
 741   if not with_dri3
 742     error('Using nine with wine requires dri3')
 743   endif
 744 endif
 745 _power8 = get_option('power8')
 746 if _power8 == 'true'
 747   _power8 = 'enabled'
 748   warning('power8 option "true" deprecated, please use "enabled" instead.')
 749 elif _power8 == 'disabled'
 750   _power8 = 'disabled'
 751   warning('power8 option "false" deprecated, please use "disabled" instead.')
 752 endif
 753 if _power8 != 'disabled'
 754   # on old versions of meson the cpu family would return as ppc64le on little
 755   # endian power8, this was changed in 0.48 such that the family would always
 756   # be ppc64 regardless of endianness, and then the machine.endian() value
 757   # should be checked. Since we support versions < 0.48 we need to use
 758   # startswith.
 759   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 760     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 761       error('Altivec is not supported with gcc version < 4.8.')
 762     endif
 763     if cc.compiles('''
 764         #include <altivec.h>
 765         int main() {
 766           vector unsigned char r;
 767           vector unsigned int v = vec_splat_u32 (1);
 768           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 769           return 0;
 770         }''',
 771         args : '-mpower8-vector',
 772         name : 'POWER8 intrinsics')
 773       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 774     elif get_option('power8') == 'enabled'
 775       error('POWER8 intrinsic support required but not found.')
 776     endif
 777   endif
 778 endif
 779
 780 _opencl = get_option('gallium-opencl')
 781 if _opencl != 'disabled'
 782   if not with_gallium
 783     error('OpenCL Clover implementation requires at least one gallium driver.')
 784   endif
 785
 786   dep_clc = dependency('libclc')
 787   with_gallium_opencl = true
 788   with_opencl_icd = _opencl == 'icd'
 789
 790   with_opencl_spirv = get_option('opencl-spirv')
 791   if with_opencl_spirv
 792     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 793     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 794     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 795   else
 796     dep_spirv_tools = null_dep
 797     dep_llvmspirvlib = null_dep
 798   endif
 799 else
 800   dep_clc = null_dep
 801   dep_spirv_tools = null_dep
 802   dep_llvmspirvlib = null_dep
 803   with_gallium_opencl = false
 804   with_opencl_icd = false
 805   with_opencl_spirv = false
 806 endif
 807
 808 gl_pkgconfig_c_flags = []
 809 if with_platform_x11
 810   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 811     pre_args += '-DHAVE_X11_PLATFORM'
 812   endif
 813   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 814     pre_args += '-DUSE_XSHM'
 815   else
 816     pre_args += '-DGLX_INDIRECT_RENDERING'
 817     if with_glx_direct
 818       pre_args += '-DGLX_DIRECT_RENDERING'
 819     endif
 820     if with_dri_platform == 'drm'
 821       pre_args += '-DGLX_USE_DRM'
 822     elif with_dri_platform == 'apple'
 823       pre_args += '-DGLX_USE_APPLEGL'
 824     elif with_dri_platform == 'windows'
 825       pre_args += '-DGLX_USE_WINDOWSGL'
 826     endif
 827   endif
 828 else
 829   pre_args += '-DEGL_NO_X11'
 830   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 831 endif
 832 if with_gbm
 833   pre_args += '-DHAVE_DRM_PLATFORM'
 834 endif
 835 if with_platform_android
 836   dep_android = [
 837     dependency('cutils'),
 838     dependency('hardware'),
 839     dependency('sync'),
 840   ]
 841   if with_gallium
 842     dep_android += dependency('backtrace')
 843   endif
 844   if get_option('platform-sdk-version') >= 26
 845     dep_android += dependency('nativewindow')
 846   endif
 847   pre_args += '-DHAVE_ANDROID_PLATFORM'
 848 endif
 849 if with_platform_haiku
 850   pre_args += '-DHAVE_HAIKU_PLATFORM'
 851 endif
 852
 853 prog_python = import('python').find_installation('python3')
 854 has_mako = run_command(
 855   prog_python, '-c',
 856   '''
 857 from distutils.version import StrictVersion
 858 import mako
 859 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 860   ''')
 861 if has_mako.returncode() != 0
 862   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 863 endif
 864
 865 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 866   error('When using GCC, version 4.4.6 or later is required.')
 867 endif
 868
 869 # Support systems without ETIME (e.g. FreeBSD)
 870 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 871   pre_args += '-DETIME=ETIMEDOUT'
 872 endif
 873
 874 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 875 if get_option('buildtype') == 'debug'
 876   pre_args += '-DDEBUG'
 877 endif
 878
 879 with_shader_cache = false
 880 _shader_cache = get_option('shader-cache')
 881 if _shader_cache == 'true'
 882   _shader_cache = 'enabled'
 883   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 884 elif _shader_cache == 'false'
 885   _shader_cache = 'disabled'
 886   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 887 endif
 888 if _shader_cache != 'disabled'
 889   if host_machine.system() == 'windows'
 890     if _shader_cache == 'enabled'
 891       error('Shader Cache does not currently work on Windows')
 892     endif
 893   else
 894     pre_args += '-DENABLE_SHADER_CACHE'
 895     with_shader_cache = true
 896   endif
 897 endif
 898
 899 # Check for GCC style builtins
 900 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 901              'ffsll', 'popcount', 'popcountll', 'unreachable']
 902   if cc.has_function(b)
 903     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 904   endif
 905 endforeach
 906
 907 # check for GCC __attribute__
 908 _attributes = [
 909   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 910   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 911 ]
 912 foreach a : cc.get_supported_function_attributes(_attributes)
 913   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 914 endforeach
 915 if cc.has_function_attribute('visibility:hidden')
 916   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 917 endif
 918 if cc.compiles('__uint128_t foo(void) { return 0; }',
 919                name : '__uint128_t')
 920   pre_args += '-DHAVE_UINT128'
 921 endif
 922
 923 # TODO: this is very incomplete
 924 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 925   pre_args += '-D_GNU_SOURCE'
 926 elif host_machine.system() == 'sunos'
 927   pre_args += '-D__EXTENSIONS__'
 928 elif host_machine.system() == 'windows'
 929   pre_args += [
 930     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 931     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 932     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 933   ]
 934   if cc.get_id() == 'msvc'
 935     pre_args += [
 936       '-DVC_EXTRALEAN',
 937       '-D_CRT_SECURE_NO_WARNINGS',
 938       '-D_CRT_SECURE_NO_DEPRECATE',
 939       '-D_SCL_SECURE_NO_WARNINGS',
 940       '-D_SCL_SECURE_NO_DEPRECATE',
 941       '-D_ALLOW_KEYWORD_MACROS',
 942       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 943     ]
 944   else
 945     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 946   endif
 947 endif
 948
 949 # Check for generic C arguments
 950 c_args = []
 951 c_msvc_compat_args = []
 952 no_override_init_args = []
 953 cpp_args = []
 954 cpp_msvc_compat_args = []
 955 if cc.get_id() == 'msvc'
 956   foreach a : ['/wd4018',  # signed/unsigned mismatch
 957                '/wd4056',  # overflow in floating-point constant arithmetic
 958                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 959                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 960                '/wd4305',  # trancation from 'type1' to 'type2'
 961                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 962                '/wd4756',  # overflow in constant arithmetic
 963                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 964                '/wd4996',  # disabled deprecated POSIX name warnings
 965                '/wd4291',  # no matching operator delete found
 966                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 967                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 968                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 969               ]
 970     if cc.has_argument(a)
 971       c_args += a
 972     endif
 973     if cpp.has_argument(a)
 974       cpp_args += a
 975     endif
 976   endforeach
 977   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 978     c_args += '-Wno-microsoft-enum-value'
 979     cpp_args += '-Wno-microsoft-enum-value'
 980   endif
 981 else
 982   _trial = [
 983     '-Werror=implicit-function-declaration',
 984     '-Werror=missing-prototypes',
 985     '-Werror=return-type',
 986     '-Werror=empty-body',
 987     '-Werror=incompatible-pointer-types',
 988     '-Werror=int-conversion',
 989     '-Wimplicit-fallthrough',
 990     '-Wno-missing-field-initializers',
 991     '-Wno-format-truncation',
 992     '-fno-math-errno',
 993     '-fno-trapping-math',
 994     '-Qunused-arguments',
 995     '-fno-common',
 996   ]
 997   # MinGW chokes on format specifiers and I can't get it all working
 998   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
 999     _trial += ['-Werror=format', '-Wformat-security']
1000   endif
1001   foreach a : _trial
1002     if cc.has_argument(a)
1003       c_args += a
1004     endif
1005   endforeach
1006
1007   _trial = [
1008     '-Werror=return-type',
1009     '-Werror=empty-body',
1010     '-Wno-non-virtual-dtor',
1011     '-Wno-missing-field-initializers',
1012     '-Wno-format-truncation',
1013     '-fno-math-errno',
1014     '-fno-trapping-math',
1015     '-Qunused-arguments',
1016     # Some classes use custom new operator which zeroes memory, however
1017     # gcc does aggressive dead-store elimination which threats all writes
1018     # to the memory before the constructor as "dead stores".
1019     # For now we disable this optimization.
1020     '-flifetime-dse=1',
1021   ]
1022   # MinGW chokes on format specifiers and I can't get it all working
1023   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1024     _trial += ['-Werror=format', '-Wformat-security']
1025   endif
1026   foreach a : _trial
1027     if cpp.has_argument(a)
1028       cpp_args += a
1029     endif
1030   endforeach
1031
1032   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1033     if cc.has_argument(a)
1034       no_override_init_args += a
1035     endif
1036   endforeach
1037
1038   # Check for C and C++ arguments for MSVC compatibility. These are only used
1039   # in parts of the mesa code base that need to compile with MSVC, mainly
1040   # common code
1041   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1042     if cc.has_argument(a)
1043       c_msvc_compat_args += a
1044     endif
1045     if cpp.has_argument(a)
1046       cpp_msvc_compat_args += a
1047     endif
1048   endforeach
1049 endif
1050
1051 # set linker arguments
1052 if host_machine.system() == 'windows'
1053   if cc.get_id() == 'msvc'
1054     add_project_link_arguments(
1055       '/fixed:no',
1056       '/dynamicbase',
1057       '/nxcompat',
1058       language : ['c', 'cpp'],
1059     )
1060     if get_option('buildtype') != 'debug'
1061       add_project_link_arguments(
1062         '/incremental:no',
1063         language : ['c', 'cpp'],
1064       )
1065     endif
1066   else
1067     add_project_link_arguments(
1068       '-Wl,--nxcompat',
1069       '-Wl,--dynamicbase',
1070       '-static-libgcc',
1071       '-static-libstdc++',
1072       language : ['c', 'cpp'],
1073     )
1074   endif
1075 endif
1076
1077 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1078   pre_args += '-DUSE_SSE41'
1079   with_sse41 = true
1080   sse41_args = ['-msse4.1']
1081
1082   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1083   # that's not guaranteed
1084   if host_machine.cpu_family() == 'x86'
1085     sse41_args += '-mstackrealign'
1086   endif
1087 else
1088   with_sse41 = false
1089   sse41_args = []
1090 endif
1091
1092 # Check for GCC style atomics
1093 dep_atomic = null_dep
1094
1095 if cc.compiles('''#include <stdint.h>
1096                   int main() {
1097                     struct {
1098                       uint64_t *v;
1099                     } x;
1100                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1101                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1102
1103                   }''',
1104                name : 'GCC atomic builtins')
1105   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1106
1107   # Not all atomic calls can be turned into lock-free instructions, in which
1108   # GCC will make calls into the libatomic library. Check whether we need to
1109   # link with -latomic.
1110   #
1111   # This can happen for 64-bit atomic operations on 32-bit architectures such
1112   # as ARM.
1113   if not cc.links('''#include <stdint.h>
1114                      int main() {
1115                        struct {
1116                          uint64_t *v;
1117                        } x;
1118                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1119                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1120                      }''',
1121                   name : 'GCC atomic builtins required -latomic')
1122     dep_atomic = cc.find_library('atomic')
1123   endif
1124 endif
1125 if not cc.links('''#include <stdint.h>
1126                    uint64_t v;
1127                    int main() {
1128                      return __sync_add_and_fetch(&v, (uint64_t)1);
1129                    }''',
1130                 dependencies : dep_atomic,
1131                 name : 'GCC 64bit atomics')
1132   pre_args += '-DMISSING_64BIT_ATOMICS'
1133 endif
1134
1135 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1136
1137 # TODO: shared/static? Is this even worth doing?
1138
1139 with_asm_arch = ''
1140 if host_machine.cpu_family() == 'x86'
1141   if system_has_kms_drm or host_machine.system() == 'gnu'
1142     with_asm_arch = 'x86'
1143     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1144                  '-DUSE_SSE_ASM']
1145
1146     if with_glx_read_only_text
1147       pre_args += ['-DGLX_X86_READONLY_TEXT']
1148     endif
1149   endif
1150 elif host_machine.cpu_family() == 'x86_64'
1151   if system_has_kms_drm
1152     with_asm_arch = 'x86_64'
1153     pre_args += ['-DUSE_X86_64_ASM']
1154   endif
1155 elif host_machine.cpu_family() == 'arm'
1156   if system_has_kms_drm
1157     with_asm_arch = 'arm'
1158     pre_args += ['-DUSE_ARM_ASM']
1159   endif
1160 elif host_machine.cpu_family() == 'aarch64'
1161   if system_has_kms_drm
1162     with_asm_arch = 'aarch64'
1163     pre_args += ['-DUSE_AARCH64_ASM']
1164   endif
1165 elif host_machine.cpu_family() == 'sparc64'
1166   if system_has_kms_drm
1167     with_asm_arch = 'sparc'
1168     pre_args += ['-DUSE_SPARC_ASM']
1169   endif
1170 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1171   if system_has_kms_drm
1172     with_asm_arch = 'ppc64le'
1173     pre_args += ['-DUSE_PPC64LE_ASM']
1174   endif
1175 endif
1176
1177 # Check for standard headers and functions
1178 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1179   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1180   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1181   pre_args += '-DMAJOR_IN_SYSMACROS'
1182 endif
1183 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1184   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1185   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1186   pre_args += '-DMAJOR_IN_MKDEV'
1187 endif
1188
1189 if not ['linux'].contains(host_machine.system())
1190   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1191   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1192     pre_args += '-DHAVE_SYS_SYSCTL_H'
1193   endif
1194 endif
1195
1196 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1197   if cc.check_header(h)
1198     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1199   endif
1200 endforeach
1201
1202 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1203   if cc.has_function(f)
1204     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1205   endif
1206 endforeach
1207
1208 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1209                         args : '-D_GNU_SOURCE')
1210    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1211 elif with_tools.contains('intel')
1212   error('Intel tools require the program_invocation_name variable')
1213 endif
1214
1215 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1216 # This means that this check will succeed, but then compilation will later
1217 # fail. MSVC doesn't have this function at all, so only check for it on
1218 # non-windows platforms.
1219 if host_machine.system() != 'windows'
1220   if cc.has_function('posix_memalign')
1221     pre_args += '-DHAVE_POSIX_MEMALIGN'
1222   endif
1223 endif
1224
1225 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1226    #include <dirent.h>''')
1227    pre_args += '-DHAVE_DIRENT_D_TYPE'
1228 endif
1229
1230 # strtod locale support
1231 if cc.links('''
1232     #define _GNU_SOURCE
1233     #include <stdlib.h>
1234     #include <locale.h>
1235     #ifdef HAVE_XLOCALE_H
1236     #include <xlocale.h>
1237     #endif
1238     int main() {
1239       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1240       const char *s = "1.0";
1241       char *end;
1242       double d = strtod_l(s, end, loc);
1243       float f = strtof_l(s, end, loc);
1244       freelocale(loc);
1245       return 0;
1246     }''',
1247     args : pre_args,
1248     name : 'strtod has locale support')
1249   pre_args += '-DHAVE_STRTOD_L'
1250 endif
1251
1252 # Check for some linker flags
1253 ld_args_bsymbolic = []
1254 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1255   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1256 endif
1257 ld_args_gc_sections = []
1258 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1259             args : '-Wl,--gc-sections', name : 'gc-sections')
1260   ld_args_gc_sections += '-Wl,--gc-sections'
1261 endif
1262 with_ld_version_script = false
1263 if cc.links('int main() { return 0; }',
1264             args : '-Wl,--version-script=@0@'.format(
1265               join_paths(meson.source_root(), 'build-support/conftest.map')),
1266             name : 'version-script')
1267   with_ld_version_script = true
1268 endif
1269 with_ld_dynamic_list = false
1270 if cc.links('int main() { return 0; }',
1271             args : '-Wl,--dynamic-list=@0@'.format(
1272               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1273             name : 'dynamic-list')
1274   with_ld_dynamic_list = true
1275 endif
1276
1277 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1278
1279 # check for dl support
1280 dep_dl = null_dep
1281 if not cc.has_function('dlopen')
1282   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1283 endif
1284 if cc.has_function('dladdr', dependencies : dep_dl)
1285   # This is really only required for megadrivers
1286   pre_args += '-DHAVE_DLADDR'
1287 endif
1288
1289 if cc.has_function('dl_iterate_phdr')
1290   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1291 elif with_intel_vk
1292   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1293 elif with_dri_i965 and with_shader_cache
1294   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1295 endif
1296
1297 # Determine whether or not the rt library is needed for time functions
1298 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1299   dep_clock = null_dep
1300 else
1301   dep_clock = cc.find_library('rt')
1302 endif
1303
1304 # TODO: some of these may be conditional
1305 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1306 pre_args += '-DHAVE_ZLIB'
1307
1308 _zstd = get_option('zstd')
1309 if _zstd == 'true'
1310   _zstd = 'enabled'
1311   warning('zstd option "true" deprecated, please use "enabled" instead.')
1312 elif _zstd == 'false'
1313   _zstd = 'disabled'
1314   warning('zstd option "false" deprecated, please use "disabled" instead.')
1315 endif
1316 if _zstd != 'disabled'
1317   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1318   if dep_zstd.found()
1319     pre_args += '-DHAVE_ZSTD'
1320   endif
1321 else
1322   dep_zstd = null_dep
1323 endif
1324
1325 dep_thread = dependency('threads')
1326 if dep_thread.found() and host_machine.system() != 'windows'
1327   pre_args += '-DHAVE_PTHREAD'
1328   if cc.has_function(
1329       'pthread_setaffinity_np',
1330       dependencies : dep_thread,
1331       prefix : '#include <pthread.h>',
1332       args : '-D_GNU_SOURCE')
1333     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1334   endif
1335   if cc.has_function(
1336       'pthread_setaffinity_np',
1337       dependencies : dep_thread,
1338       prefix : '#include <pthread_np.h>')
1339     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1340   endif
1341 endif
1342 if host_machine.system() != 'windows'
1343   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1344 else
1345   dep_expat = null_dep
1346 endif
1347 # this only exists on linux so either this is linux and it will be found, or
1348 # it's not linux and wont
1349 dep_m = cc.find_library('m', required : false)
1350
1351 # Check for libdrm. Various drivers have different libdrm version requirements,
1352 # but we always want to use the same version for all libdrm modules. That means
1353 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1354 # bar are both on use 2.4.3 for both of them
1355 dep_libdrm_amdgpu = null_dep
1356 dep_libdrm_radeon = null_dep
1357 dep_libdrm_nouveau = null_dep
1358 dep_libdrm_intel = null_dep
1359
1360 _drm_amdgpu_ver = '2.4.100'
1361 _drm_radeon_ver = '2.4.71'
1362 _drm_nouveau_ver = '2.4.102'
1363 _drm_intel_ver = '2.4.75'
1364 _drm_ver = '2.4.81'
1365
1366 _libdrm_checks = [
1367   ['intel', with_dri_i915 or with_gallium_i915],
1368   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1369   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1370               with_gallium_r300 or with_gallium_r600)],
1371   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1372 ]
1373
1374 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1375 # library.
1376 if with_gallium_vc4
1377   _drm_ver = '2.4.89'
1378 endif
1379
1380 # etnaviv only needs core libdrm
1381 if with_gallium_etnaviv
1382   _drm_ver = '2.4.89'
1383 endif
1384
1385 # Loop over the enables versions and get the highest libdrm requirement for all
1386 # active drivers.
1387 _drm_blame = ''
1388 foreach d : _libdrm_checks
1389   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1390   if d[1] and ver.version_compare('>' + _drm_ver)
1391     _drm_ver = ver
1392     _drm_blame = d[0]
1393   endif
1394 endforeach
1395 if _drm_blame != ''
1396   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1397 endif
1398
1399 # Then get each libdrm module
1400 foreach d : _libdrm_checks
1401   if d[1]
1402     set_variable(
1403       'dep_libdrm_' + d[0],
1404       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1405     )
1406   endif
1407 endforeach
1408
1409 with_gallium_drisw_kms = false
1410 dep_libdrm = dependency(
1411   'libdrm', version : '>=' + _drm_ver,
1412   # GNU/Hurd includes egl_dri2, without drm.
1413   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1414 )
1415 if dep_libdrm.found()
1416   pre_args += '-DHAVE_LIBDRM'
1417   if with_dri_platform == 'drm' and with_dri
1418     with_gallium_drisw_kms = true
1419   endif
1420 endif
1421
1422 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1423 llvm_optional_modules = ['coroutines']
1424 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1425   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1426   if with_gallium_r600
1427     llvm_modules += 'asmparser'
1428   endif
1429 endif
1430 if with_gallium_opencl
1431   llvm_modules += [
1432     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1433     'lto', 'option', 'objcarcopts', 'profiledata',
1434   ]
1435 endif
1436
1437 if with_amd_vk or with_gallium_radeonsi
1438   _llvm_version = '>= 8.0.0'
1439 elif with_gallium_swr
1440   _llvm_version = '>= 6.0.0'
1441 else
1442   _llvm_version = '>= 3.9.0'
1443 endif
1444
1445 _shared_llvm = get_option('shared-llvm')
1446 if _shared_llvm == 'true'
1447   _shared_llvm = 'enabled'
1448   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1449 elif _shared_llvm == 'false'
1450   _shared_llvm = 'disabled'
1451   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1452 endif
1453 if _shared_llvm == 'auto'
1454   _shared_llvm = (host_machine.system() != 'windows')
1455 else
1456   _shared_llvm = (_shared_llvm == 'enabled')
1457 endif
1458 _llvm = get_option('llvm')
1459 if _llvm == 'true'
1460   _llvm = 'enabled'
1461   warning('llvm option "true" deprecated, please use "enabled" instead.')
1462 elif _llvm == 'false'
1463   _llvm = 'disabled'
1464   warning('llvm option "false" deprecated, please use "disabled" instead.')
1465 endif
1466
1467 # the cmake method can only link statically, so don't attempt to use it if we
1468 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1469 # linking is requested, so we need to force the config-tool method to be used
1470 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1471 # linking is requested.
1472 _llvm_method = 'auto'
1473 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1474   _llvm_method = 'config-tool'
1475 endif
1476
1477 dep_llvm = null_dep
1478 with_llvm = false
1479 if _llvm != 'disabled'
1480   dep_llvm = dependency(
1481     'llvm',
1482     version : _llvm_version,
1483     modules : llvm_modules,
1484     optional_modules : llvm_optional_modules,
1485     required : (
1486       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1487       with_gallium_opencl or _llvm == 'enabled'
1488     ),
1489     static : not _shared_llvm,
1490     method : _llvm_method,
1491     fallback : ['llvm', 'dep_llvm'],
1492   )
1493   with_llvm = dep_llvm.found()
1494 endif
1495 if with_llvm
1496   pre_args += '-DLLVM_AVAILABLE'
1497   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1498
1499   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1500   # programs, so we need to build all C++ code in mesa without rtti as well to
1501   # ensure that linking works.
1502   #
1503   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1504   # builtin llvm-config based finder. A new generic variable getter method
1505   # has also been added, so we'll use that if we can, to cover the cmake case.
1506   if dep_llvm.type_name() == 'internal'
1507     _rtti = subproject('llvm').get_variable('has_rtti', true)
1508   else
1509     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1510     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1511   endif
1512   if not _rtti
1513     if with_gallium_nouveau
1514       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1515     elif with_gallium_opencl
1516       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1517     endif
1518     if cc.get_id() == 'msvc'
1519       cpp_args += '/GR-'
1520     else
1521       cpp_args += '-fno-rtti'
1522     endif
1523   endif
1524 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1525   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1526 elif with_gallium_opencl
1527   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1528 endif
1529
1530 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1531     (with_gallium_r600 and with_llvm))
1532   dep_elf = dependency('libelf', required : false)
1533   if not dep_elf.found()
1534     dep_elf = cc.find_library('elf')
1535   endif
1536 else
1537   dep_elf = null_dep
1538 endif
1539
1540 dep_glvnd = null_dep
1541 if with_glvnd
1542   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1543   pre_args += '-DUSE_LIBGLVND=1'
1544 endif
1545
1546 _valgrind = get_option('valgrind')
1547 if _valgrind == 'true'
1548   _valgrind = 'enabled'
1549   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1550 elif _valgrind == 'false'
1551   _valgrind = 'disabled'
1552   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1553 endif
1554 if _valgrind != 'disabled'
1555   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1556   if dep_valgrind.found()
1557     pre_args += '-DHAVE_VALGRIND'
1558   endif
1559 else
1560   dep_valgrind = null_dep
1561 endif
1562
1563 # pthread stubs. Lets not and say we didn't
1564
1565 if host_machine.system() == 'windows'
1566   # Prefer the winflexbison versions, they're much easier to install and have
1567   # better windows support.
1568
1569   prog_flex = find_program('win_flex', required : false)
1570   if prog_flex.found()
1571     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1572     # _fileno functions)
1573     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1574   else
1575     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1576   endif
1577   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1578   # __STDC__ macro to determine whether it's safe to use const keyword, but
1579   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1580   prog_flex += '-DYY_USE_CONST='
1581
1582   prog_bison = find_program('win_bison', required : false)
1583   if not prog_bison.found()
1584     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1585   endif
1586 else
1587   prog_bison = find_program('bison', required : with_any_opengl)
1588
1589   # Disable deprecated keyword warnings, since we have to use them for
1590   # old-bison compat.  See discussion in
1591   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1592   if find_program('bison', required : false, version : '> 2.3').found()
1593     prog_bison = [prog_bison, '-Wno-deprecated']
1594   endif
1595
1596   prog_flex = find_program('flex', required : with_any_opengl)
1597 endif
1598
1599 dep_selinux = null_dep
1600 if get_option('selinux')
1601   dep_selinux = dependency('libselinux')
1602   pre_args += '-DMESA_SELINUX'
1603 endif
1604
1605 _libunwind = get_option('libunwind')
1606 if _libunwind == 'true'
1607   _libunwind = 'enabled'
1608   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1609 elif _libunwind == 'false'
1610   _libunwind = 'disabled'
1611   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1612 endif
1613 if _libunwind != 'disabled'
1614   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1615   if dep_unwind.found()
1616     pre_args += '-DHAVE_LIBUNWIND'
1617   endif
1618 else
1619   dep_unwind = null_dep
1620 endif
1621
1622 if with_osmesa != 'none'
1623   if with_osmesa == 'gallium' and not with_gallium_softpipe
1624     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1625   endif
1626   if host_machine.system() == 'windows'
1627     osmesa_lib_name = 'osmesa'
1628   else
1629     osmesa_lib_name = 'OSMesa'
1630   endif
1631   osmesa_bits = get_option('osmesa-bits')
1632   if osmesa_bits != '8'
1633     if with_dri or with_glx != 'disabled'
1634       error('OSMesa bits must be 8 if building glx or dir based drivers')
1635     endif
1636     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1637     pre_args += [
1638       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1639     ]
1640   endif
1641 endif
1642
1643 # TODO: symbol mangling
1644
1645 if with_platform_wayland
1646   dep_wl_scanner = dependency('wayland-scanner', native: true)
1647   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1648   if dep_wl_scanner.version().version_compare('>= 1.15')
1649     wl_scanner_arg = 'private-code'
1650   else
1651     wl_scanner_arg = 'code'
1652   endif
1653   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1654   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1655   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1656   if with_egl
1657     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1658     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1659   endif
1660   wayland_dmabuf_xml = join_paths(
1661     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1662     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1663   )
1664   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1665 endif
1666
1667 dep_x11 = null_dep
1668 dep_xext = null_dep
1669 dep_xdamage = null_dep
1670 dep_xfixes = null_dep
1671 dep_x11_xcb = null_dep
1672 dep_xcb = null_dep
1673 dep_xcb_glx = null_dep
1674 dep_xcb_dri2 = null_dep
1675 dep_xcb_dri3 = null_dep
1676 dep_dri2proto = null_dep
1677 dep_glproto = null_dep
1678 dep_xxf86vm = null_dep
1679 dep_xcb_dri3 = null_dep
1680 dep_xcb_present = null_dep
1681 dep_xcb_sync = null_dep
1682 dep_xcb_xfixes = null_dep
1683 dep_xshmfence = null_dep
1684 dep_xcb_xrandr = null_dep
1685 dep_xlib_xrandr = null_dep
1686 if with_platform_x11
1687   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1688     dep_x11 = dependency('x11')
1689     dep_xext = dependency('xext')
1690     dep_xcb = dependency('xcb')
1691   elif with_glx == 'dri'
1692     dep_x11 = dependency('x11')
1693     dep_xext = dependency('xext')
1694     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1695     dep_xfixes = dependency('xfixes')
1696     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1697   endif
1698   if (with_any_vk or with_glx == 'dri' or with_egl or
1699        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1700         with_gallium_omx != 'disabled'))
1701     dep_xcb = dependency('xcb')
1702     dep_x11_xcb = dependency('x11-xcb')
1703     if with_dri_platform == 'drm' and not dep_libdrm.found()
1704       error('libdrm required for gallium video statetrackers when using x11')
1705     endif
1706   endif
1707   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1708     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1709
1710     if with_dri3
1711       pre_args += '-DHAVE_DRI3'
1712       dep_xcb_dri3 = dependency('xcb-dri3')
1713       dep_xcb_present = dependency('xcb-present')
1714       # until xcb-dri3 has been around long enough to make a hard-dependency:
1715       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1716           dep_xcb_present.version().version_compare('>= 1.13'))
1717         pre_args += '-DHAVE_DRI3_MODIFIERS'
1718       endif
1719       dep_xcb_sync = dependency('xcb-sync')
1720       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1721     endif
1722   endif
1723   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1724     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1725   endif
1726   if with_glx == 'dri'
1727     if with_dri_platform == 'drm'
1728       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1729       dep_xxf86vm = dependency('xxf86vm')
1730     endif
1731   endif
1732   if (with_egl or (
1733       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1734       with_gallium_omx != 'disabled'))
1735     dep_xcb_xfixes = dependency('xcb-xfixes')
1736   endif
1737   if with_xlib_lease
1738     dep_xcb_xrandr = dependency('xcb-randr')
1739     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1740   endif
1741 endif
1742
1743 if get_option('gallium-extra-hud')
1744   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1745 endif
1746
1747 _sensors = get_option('lmsensors')
1748 if _sensors == 'true'
1749   _sensors = 'enabled'
1750   warning('sensors option "true" deprecated, please use "enabled" instead.')
1751 elif _sensors == 'false'
1752   _sensors = 'disabled'
1753   warning('sensors option "false" deprecated, please use "disabled" instead.')
1754 endif
1755 if _sensors != 'disabled'
1756   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1757   if dep_lmsensors.found()
1758     pre_args += '-DHAVE_LIBSENSORS=1'
1759   endif
1760 else
1761   dep_lmsensors = null_dep
1762 endif
1763
1764 # If the compiler supports it, put function and data symbols in their
1765 # own sections and GC the sections after linking.  This lets drivers
1766 # drop shared code unused by that specific driver (particularly
1767 # relevant for Vulkan drivers).
1768 if cc.has_link_argument('-Wl,--gc-sections')
1769   add_project_arguments('-Wl,--gc-sections', language : ['c', 'cpp'])
1770   foreach a: ['-ffunction-sections', '-fdata-sections']
1771     if cc.has_argument(a)
1772       add_project_arguments(a, language : ['c', 'cpp'])
1773     endif
1774   endforeach
1775 endif
1776
1777 foreach a : pre_args
1778   add_project_arguments(a, language : ['c', 'cpp'])
1779 endforeach
1780 foreach a : c_args
1781   add_project_arguments(a, language : ['c'])
1782 endforeach
1783 foreach a : cpp_args
1784   add_project_arguments(a, language : ['cpp'])
1785 endforeach
1786
1787 gl_priv_reqs = []
1788
1789 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1790   gl_priv_reqs += ['x11', 'xext', 'xcb']
1791 elif with_glx == 'dri'
1792   gl_priv_reqs += [
1793     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1794     'xcb-glx >= 1.8.1']
1795   if with_dri_platform == 'drm'
1796     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1797     gl_priv_reqs += 'xxf86vm'
1798   endif
1799 endif
1800 if dep_libdrm.found()
1801   gl_priv_reqs += 'libdrm >= 2.4.75'
1802 endif
1803
1804 gl_priv_libs = []
1805 if dep_thread.found()
1806   gl_priv_libs += ['-lpthread', '-pthread']
1807 endif
1808 if dep_m.found()
1809   gl_priv_libs += '-lm'
1810 endif
1811 if dep_dl.found()
1812   gl_priv_libs += '-ldl'
1813 endif
1814
1815 pkg = import('pkgconfig')
1816
1817 if host_machine.system() == 'windows'
1818   prog_dumpbin = find_program('dumpbin', required : false)
1819   with_symbols_check = prog_dumpbin.found() and with_tests
1820   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1821 else
1822   prog_nm = find_program('nm')
1823   with_symbols_check = with_tests
1824   symbols_check_args = ['--nm', prog_nm.path()]
1825 endif
1826
1827 # This quirk needs to be applied to sources with functions defined in assembly
1828 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1829 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1830
1831 subdir('include')
1832 subdir('bin')
1833 subdir('src')
1834
1835 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1836 # formatting below unless the first argument is passed as a variable. This has
1837 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1838 # for backwards compatibility.
1839 _with_opengl_string = with_opengl ? 'yes' : 'no'
1840
1841 lines = ['',
1842   'prefix:          ' + get_option('prefix'),
1843   'libdir:          ' + get_option('libdir'),
1844   'includedir:      ' + get_option('includedir'),
1845   '',
1846   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1847                                                     with_gles1 ? 'yes' : 'no',
1848                                                     with_gles2 ? 'yes' : 'no'),
1849 ]
1850
1851 if with_osmesa != 'none'
1852   lines += ''
1853   suffix = ''
1854   if with_osmesa == 'gallium'
1855     suffix = '(Gallium)'
1856   endif
1857   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1858 else
1859   lines += 'OSMesa:          no'
1860 endif
1861
1862 if with_dri
1863   lines += ''
1864   lines += 'DRI platform:    ' + with_dri_platform
1865   if dri_drivers.length() != 0 and dri_drivers != ['']
1866     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1867   else
1868     lines += 'DRI drivers:     no'
1869   endif
1870   lines += 'DRI driver dir:  ' + dri_drivers_path
1871 endif
1872
1873 if with_glx != 'disabled'
1874   lines += ''
1875   if with_glx == 'dri'
1876     lines += 'GLX:             DRI-based'
1877   elif with_glx == 'xlib'
1878     lines += 'GLX:             Xlib-based'
1879   elif with_glx == 'gallium-xlib'
1880     lines += 'GLX:             Xlib-based (Gallium)'
1881   else
1882     lines += 'GLX:             ' + with_glx
1883   endif
1884 endif
1885
1886 lines += ''
1887 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1888 if with_egl
1889   egl_drivers = []
1890   if with_dri
1891     egl_drivers += 'builtin:egl_dri2'
1892   endif
1893   if with_dri3
1894     egl_drivers += 'builtin:egl_dri3'
1895   endif
1896   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1897 endif
1898 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1899 if with_egl or with_any_vk
1900   _platforms += 'surfaceless'
1901   if with_gbm
1902     _platforms += 'drm'
1903   endif
1904   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1905 endif
1906
1907 lines += ''
1908 if with_any_vk
1909   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1910   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1911 else
1912   lines += 'Vulkan drivers:  no'
1913 endif
1914
1915 lines += ''
1916 if with_llvm
1917   lines += 'llvm:            yes'
1918   lines += 'llvm-version:    ' + dep_llvm.version()
1919 else
1920   lines += 'llvm:            no'
1921 endif
1922
1923 lines += ''
1924 if with_gallium
1925   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1926   gallium_st = ['mesa']
1927   if with_gallium_xa
1928     gallium_st += 'xa'
1929   endif
1930   if with_gallium_xvmc
1931     gallium_st += 'xvmc'
1932   endif
1933   if with_gallium_xvmc
1934     gallium_st += 'xvmc'
1935   endif
1936   if with_gallium_vdpau
1937     gallium_st += 'vdpau'
1938   endif
1939   if with_gallium_omx != 'disabled'
1940     gallium_st += 'omx' + with_gallium_omx
1941   endif
1942   if with_gallium_va
1943     gallium_st += 'va'
1944   endif
1945   if with_gallium_st_nine
1946     gallium_st += 'nine'
1947   endif
1948   if with_gallium_opencl
1949     gallium_st += 'clover'
1950   endif
1951   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1952 else
1953   lines += 'Gallium:         no'
1954 endif
1955
1956 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1957
1958 lines += ''
1959 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1960
1961
1962 indent = '        '
1963 summary = indent + ('\n' + indent).join(lines)
1964 message('Configuration summary:\n@0@\n'.format(summary))