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', 'swrast']
 247     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 248       _vulkan_drivers = ['swrast']
 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_swrast_vk = _vulkan_drivers.contains('swrast')
 266 with_any_vk = _vulkan_drivers.length() != 0
 267
 268 if with_swrast_vk and not with_gallium_softpipe
 269   error('swrast vulkan requires gallium swrast')
 270 endif
 271 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 272   error('Only one swrast provider can be built')
 273 endif
 274 if with_dri_i915 and with_gallium_i915
 275   error('Only one i915 provider can be built')
 276 endif
 277 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)
 278   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 279 endif
 280 if with_gallium_tegra and not with_gallium_nouveau
 281   error('tegra driver requires nouveau driver')
 282 endif
 283 if with_aco_tests and not with_amd_vk
 284   error('ACO tests require Radv')
 285 endif
 286
 287 if host_machine.system() == 'darwin'
 288   with_dri_platform = 'apple'
 289   pre_args += '-DBUILDING_MESA'
 290 elif ['windows', 'cygwin'].contains(host_machine.system())
 291   with_dri_platform = 'windows'
 292 elif system_has_kms_drm
 293   with_dri_platform = 'drm'
 294 else
 295   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 296   # assert here that one of those cases has been met.
 297   # FIXME: illumos ends up here as well
 298   with_dri_platform = 'none'
 299 endif
 300
 301 _platforms = get_option('platforms')
 302 if _platforms.contains('auto')
 303   if system_has_kms_drm
 304     _platforms = ['x11', 'wayland']
 305   elif ['darwin', 'cygwin'].contains(host_machine.system())
 306     _platforms = ['x11']
 307   elif ['haiku'].contains(host_machine.system())
 308     _platforms = ['haiku']
 309   elif host_machine.system() == 'windows'
 310     _platforms = ['windows']
 311   else
 312     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 313           host_machine.system()))
 314   endif
 315 endif
 316
 317 with_platform_android = _platforms.contains('android')
 318 with_platform_x11 = _platforms.contains('x11')
 319 with_platform_wayland = _platforms.contains('wayland')
 320 with_platform_haiku = _platforms.contains('haiku')
 321 with_platform_windows = _platforms.contains('windows')
 322
 323 if _platforms.contains('surfaceless')
 324   warning('Platform `surfaceless` is now always selected; setting this option will be an error in Mesa 20.3')
 325 endif
 326
 327 if _platforms.contains('drm')
 328   warning('Platform `drm` is now automatically selected; setting this option will be an error in Mesa 20.3')
 329 endif
 330
 331 if _platforms.length() != 0
 332   egl_native_platform = _platforms[0]
 333 else
 334   egl_native_platform = 'surfaceless'
 335 endif
 336
 337 with_glx = get_option('glx')
 338 if with_glx == 'auto'
 339   if with_dri
 340     with_glx = 'dri'
 341   elif with_platform_haiku
 342     with_glx = 'disabled'
 343   elif host_machine.system() == 'windows'
 344     with_glx = 'disabled'
 345   elif with_gallium
 346     # Even when building just gallium drivers the user probably wants dri
 347     with_glx = 'dri'
 348   elif with_platform_x11 and with_any_opengl and not with_any_vk
 349     # The automatic behavior should not be to turn on xlib based glx when
 350     # building only vulkan drivers
 351     with_glx = 'xlib'
 352   else
 353     with_glx = 'disabled'
 354   endif
 355 endif
 356 if with_glx == 'dri'
 357    if with_gallium
 358       with_dri = true
 359    endif
 360 endif
 361
 362 if not (with_dri or with_gallium or with_glx != 'disabled')
 363   with_gles1 = false
 364   with_gles2 = false
 365   with_opengl = false
 366   with_any_opengl = false
 367   with_shared_glapi = false
 368 endif
 369
 370 _gbm = get_option('gbm')
 371 if _gbm == 'true'
 372   _gbm = 'enabled'
 373   warning('gbm option "true" deprecated, please use "enabled" instead.')
 374 elif _gbm == 'false'
 375   _gbm = 'disabled'
 376   warning('gbm option "false" deprecated, please use "disabled" instead.')
 377 endif
 378 if _gbm == 'auto'
 379   with_gbm = system_has_kms_drm and with_dri
 380 else
 381   with_gbm = _gbm == 'enabled'
 382 endif
 383 if with_gbm and not system_has_kms_drm
 384   error('GBM only supports DRM/KMS platforms')
 385 endif
 386
 387 _xlib_lease = get_option('xlib-lease')
 388 if _xlib_lease == 'true'
 389   _xlib_lease = 'enabled'
 390   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 391 elif _xlib_lease == 'false'
 392   _xlib_lease = 'disabled'
 393   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 394 endif
 395 if _xlib_lease == 'auto'
 396   with_xlib_lease = with_platform_x11 and system_has_kms_drm
 397 else
 398   with_xlib_lease = _xlib_lease == 'enabled'
 399 endif
 400
 401 _egl = get_option('egl')
 402 if _egl == 'true'
 403   _egl = 'enabled'
 404   warning('egl option "true" deprecated, please use "enabled" instead.')
 405 elif _egl == 'false'
 406   _egl = 'disabled'
 407   warning('egl option "false" deprecated, please use "disabled" instead.')
 408 endif
 409 if _egl == 'auto'
 410   with_egl = (
 411     not ['darwin', 'windows'].contains(host_machine.system()) and
 412     with_dri and with_shared_glapi
 413   )
 414 elif _egl == 'enabled'
 415   if not with_dri
 416     error('EGL requires dri')
 417   elif not with_shared_glapi
 418     error('EGL requires shared-glapi')
 419   elif not ['disabled', 'dri'].contains(with_glx)
 420     error('EGL requires dri, but a GLX is being built without dri')
 421   elif ['darwin', 'windows'].contains(host_machine.system())
 422     error('EGL is not available on Windows or MacOS')
 423   endif
 424   with_egl = true
 425 else
 426   with_egl = false
 427 endif
 428
 429 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 430 if not ['windows', 'freebsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 431   pre_args += '-DUSE_ELF_TLS'
 432 endif
 433
 434 if with_glx != 'disabled'
 435   if not (with_platform_x11 and with_any_opengl)
 436     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 437   elif with_glx == 'gallium-xlib'
 438     if not with_gallium
 439       error('Gallium-xlib based GLX requires at least one gallium driver')
 440     elif not with_gallium_softpipe
 441       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 442     elif with_dri
 443       error('gallium-xlib conflicts with any dri driver')
 444     endif
 445   elif with_glx == 'xlib'
 446     if with_dri
 447       error('xlib conflicts with any dri driver')
 448     endif
 449   elif with_glx == 'dri'
 450     if not with_shared_glapi
 451       error('dri based GLX requires shared-glapi')
 452     endif
 453   endif
 454 endif
 455
 456 with_glvnd = get_option('glvnd')
 457 if with_glvnd
 458   if with_platform_windows
 459     error('glvnd cannot be used on Windows')
 460   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 461     error('Cannot build glvnd support for GLX that is not DRI based.')
 462   elif with_glx == 'disabled' and not with_egl
 463     error('glvnd requires DRI based GLX and/or EGL')
 464   endif
 465   if get_option('egl-lib-suffix') != ''
 466     error('''EGL lib suffix can't be used with libglvnd''')
 467   endif
 468 endif
 469
 470 if with_vulkan_icd_dir == ''
 471   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 472 endif
 473
 474 # GNU/Hurd includes egl_dri2, without drm.
 475 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 476   host_machine.system() == 'gnu')
 477 _dri3 = get_option('dri3')
 478 if _dri3 == 'true'
 479   _dri3 = 'enabled'
 480   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 481 elif _dri3 == 'false'
 482   _dri3 = 'disabled'
 483   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 484 endif
 485 if _dri3 == 'auto'
 486   with_dri3 = system_has_kms_drm and with_dri2
 487 else
 488   with_dri3 = _dri3 == 'enabled'
 489 endif
 490
 491 if with_any_vk and (with_platform_x11 and not with_dri3)
 492   error('Vulkan drivers require dri3 for X11 support')
 493 endif
 494 if with_dri
 495   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 496     error('building dri drivers require at least one windowing system or classic osmesa')
 497   endif
 498 endif
 499
 500 _vdpau = get_option('gallium-vdpau')
 501 if _vdpau == 'true'
 502   _vdpau = 'enabled'
 503   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 504 elif _vdpau == 'false'
 505   _vdpau = 'disabled'
 506   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 507 endif
 508 if not system_has_kms_drm
 509   if _vdpau == 'enabled'
 510     error('VDPAU state tracker can only be build on unix-like OSes.')
 511   else
 512     _vdpau = 'disabled'
 513   endif
 514 elif not with_platform_x11
 515   if _vdpau == 'enabled'
 516     error('VDPAU state tracker requires X11 support.')
 517   else
 518     _vdpau = 'disabled'
 519   endif
 520 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 521           with_gallium_nouveau)
 522   if _vdpau == 'enabled'
 523     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 524   else
 525     _vdpau = 'disabled'
 526   endif
 527 endif
 528 dep_vdpau = null_dep
 529 with_gallium_vdpau = false
 530 if _vdpau != 'disabled'
 531   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 532   if dep_vdpau.found()
 533     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 534     with_gallium_vdpau = true
 535   endif
 536 endif
 537
 538 if with_gallium_vdpau
 539   pre_args += '-DHAVE_ST_VDPAU'
 540 endif
 541 vdpau_drivers_path = get_option('vdpau-libs-path')
 542 if vdpau_drivers_path == ''
 543   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 544 endif
 545
 546 if with_gallium_zink
 547   dep_vulkan = dependency('vulkan')
 548 endif
 549
 550 if with_vulkan_overlay_layer or with_aco_tests
 551   prog_glslang = find_program('glslangValidator')
 552 endif
 553
 554 _xvmc = get_option('gallium-xvmc')
 555 if _xvmc == 'true'
 556   _xvmc = 'enabled'
 557   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 558 elif _xvmc == 'false'
 559   _xvmc = 'disabled'
 560   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 561 endif
 562 if not system_has_kms_drm
 563   if _xvmc == 'enabled'
 564     error('XVMC state tracker can only be build on unix-like OSes.')
 565   else
 566     _xvmc = 'disabled'
 567   endif
 568 elif not with_platform_x11
 569   if _xvmc == 'enabled'
 570     error('XVMC state tracker requires X11 support.')
 571   else
 572     _xvmc = 'disabled'
 573   endif
 574 elif not (with_gallium_r600 or with_gallium_nouveau)
 575   if _xvmc == 'enabled'
 576     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 577   else
 578     _xvmc = 'disabled'
 579   endif
 580 endif
 581 dep_xvmc = null_dep
 582 dep_xv = null_dep
 583 with_gallium_xvmc = false
 584 if _xvmc != 'disabled'
 585   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 586   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 587   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 588 endif
 589
 590 xvmc_drivers_path = get_option('xvmc-libs-path')
 591 if xvmc_drivers_path == ''
 592   xvmc_drivers_path = get_option('libdir')
 593 endif
 594
 595 _omx = get_option('gallium-omx')
 596 if not system_has_kms_drm
 597   if ['auto', 'disabled'].contains(_omx)
 598     _omx = 'disabled'
 599   else
 600     error('OMX state tracker can only be built on unix-like OSes.')
 601   endif
 602 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 603   if ['auto', 'disabled'].contains(_omx)
 604     _omx = 'disabled'
 605   else
 606     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 607   endif
 608 endif
 609 with_gallium_omx = _omx
 610 dep_omx = null_dep
 611 dep_omx_other = []
 612 if ['auto', 'bellagio'].contains(_omx)
 613   dep_omx = dependency(
 614     'libomxil-bellagio', required : _omx == 'bellagio'
 615   )
 616   if dep_omx.found()
 617     with_gallium_omx = 'bellagio'
 618   endif
 619 endif
 620 if ['auto', 'tizonia'].contains(_omx)
 621   if with_dri and with_egl
 622     dep_omx = dependency(
 623       'libtizonia', version : '>= 0.10.0',
 624       required : _omx == 'tizonia',
 625     )
 626     dep_omx_other = [
 627       dependency('libtizplatform', required : _omx == 'tizonia'),
 628       dependency('tizilheaders', required : _omx == 'tizonia'),
 629     ]
 630     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 631       with_gallium_omx = 'tizonia'
 632     endif
 633   elif _omx == 'tizonia'
 634     error('OMX-Tizonia state tracker requires dri and egl')
 635   endif
 636 endif
 637 if _omx == 'auto'
 638   with_gallium_omx = 'disabled'
 639 else
 640   with_gallium_omx = _omx
 641 endif
 642
 643 pre_args += [
 644   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 645   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 646 ]
 647
 648
 649 omx_drivers_path = get_option('omx-libs-path')
 650
 651 if with_gallium_omx != 'disabled'
 652   # Figure out where to put the omx driver.
 653   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 654   # argument to meson's get_pkgconfig_variable method.
 655   if omx_drivers_path == ''
 656     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 657     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 658     if _omx_libdir == get_option('libdir')
 659       omx_drivers_path = _omx_drivers_dir
 660     else
 661       _omx_base_dir = []
 662       # This will fail on windows. Does OMX run on windows?
 663       _omx_libdir = _omx_libdir.split('/')
 664       _omx_drivers_dir = _omx_drivers_dir.split('/')
 665       foreach o : _omx_drivers_dir
 666         if not _omx_libdir.contains(o)
 667           _omx_base_dir += o
 668         endif
 669       endforeach
 670       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 671     endif
 672   endif
 673 endif
 674
 675 _va = get_option('gallium-va')
 676 if _va == 'true'
 677   _va = 'enabled'
 678   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 679 elif _va == 'false'
 680   _va = 'disabled'
 681   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 682 endif
 683 if not system_has_kms_drm
 684   if _va == 'enabled'
 685     error('VA state tracker can only be built on unix-like OSes.')
 686   else
 687     _va = 'disabled'
 688   endif
 689 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 690   if _va == 'enabled'
 691     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 692   else
 693     _va = 'disabled'
 694   endif
 695 endif
 696 with_gallium_va = false
 697 dep_va = null_dep
 698 if _va != 'disabled'
 699   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 700   if dep_va.found()
 701     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 702     with_gallium_va = true
 703   endif
 704 endif
 705
 706 va_drivers_path = get_option('va-libs-path')
 707 if va_drivers_path == ''
 708   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 709 endif
 710
 711 _xa = get_option('gallium-xa')
 712 if _xa == 'true'
 713   _xa = 'enabled'
 714   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 715 elif _xa == 'false'
 716   _xa = 'disabled'
 717   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 718 endif
 719 if not system_has_kms_drm
 720   if _xa == 'enabled'
 721     error('XA state tracker can only be built on unix-like OSes.')
 722   else
 723     _xa = 'disabled'
 724   endif
 725 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 726           or with_gallium_svga)
 727   if _xa == 'enabled'
 728     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 729   else
 730     _xa = 'disabled'
 731   endif
 732 endif
 733 with_gallium_xa = _xa != 'disabled'
 734
 735 d3d_drivers_path = get_option('d3d-drivers-path')
 736 if d3d_drivers_path == ''
 737   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 738 endif
 739
 740 with_gallium_st_nine =  get_option('gallium-nine')
 741 if with_gallium_st_nine
 742   if not with_gallium_softpipe
 743     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 744   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 745             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 746             or with_gallium_iris)
 747     error('The nine state tracker requires at least one non-swrast gallium driver.')
 748   endif
 749   if not with_dri3
 750     error('Using nine with wine requires dri3')
 751   endif
 752 endif
 753 _power8 = get_option('power8')
 754 if _power8 == 'true'
 755   _power8 = 'enabled'
 756   warning('power8 option "true" deprecated, please use "enabled" instead.')
 757 elif _power8 == 'disabled'
 758   _power8 = 'disabled'
 759   warning('power8 option "false" deprecated, please use "disabled" instead.')
 760 endif
 761 if _power8 != 'disabled'
 762   # on old versions of meson the cpu family would return as ppc64le on little
 763   # endian power8, this was changed in 0.48 such that the family would always
 764   # be ppc64 regardless of endianness, and then the machine.endian() value
 765   # should be checked. Since we support versions < 0.48 we need to use
 766   # startswith.
 767   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 768     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 769       error('Altivec is not supported with gcc version < 4.8.')
 770     endif
 771     if cc.compiles('''
 772         #include <altivec.h>
 773         int main() {
 774           vector unsigned char r;
 775           vector unsigned int v = vec_splat_u32 (1);
 776           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 777           return 0;
 778         }''',
 779         args : '-mpower8-vector',
 780         name : 'POWER8 intrinsics')
 781       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 782     elif get_option('power8') == 'enabled'
 783       error('POWER8 intrinsic support required but not found.')
 784     endif
 785   endif
 786 endif
 787
 788 _opencl = get_option('gallium-opencl')
 789 if _opencl != 'disabled'
 790   if not with_gallium
 791     error('OpenCL Clover implementation requires at least one gallium driver.')
 792   endif
 793
 794   dep_clc = dependency('libclc')
 795   with_gallium_opencl = true
 796   with_opencl_icd = _opencl == 'icd'
 797
 798   with_opencl_spirv = get_option('opencl-spirv')
 799   if with_opencl_spirv
 800     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 801     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 802     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 803   else
 804     dep_spirv_tools = null_dep
 805     dep_llvmspirvlib = null_dep
 806   endif
 807 else
 808   dep_clc = null_dep
 809   dep_spirv_tools = null_dep
 810   dep_llvmspirvlib = null_dep
 811   with_gallium_opencl = false
 812   with_opencl_icd = false
 813   with_opencl_spirv = false
 814 endif
 815
 816 gl_pkgconfig_c_flags = []
 817 if with_platform_x11
 818   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 819     pre_args += '-DHAVE_X11_PLATFORM'
 820   endif
 821   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 822     pre_args += '-DUSE_XSHM'
 823   else
 824     pre_args += '-DGLX_INDIRECT_RENDERING'
 825     if with_glx_direct
 826       pre_args += '-DGLX_DIRECT_RENDERING'
 827     endif
 828     if with_dri_platform == 'drm'
 829       pre_args += '-DGLX_USE_DRM'
 830     elif with_dri_platform == 'apple'
 831       pre_args += '-DGLX_USE_APPLEGL'
 832     elif with_dri_platform == 'windows'
 833       pre_args += '-DGLX_USE_WINDOWSGL'
 834     endif
 835   endif
 836 else
 837   pre_args += '-DEGL_NO_X11'
 838   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 839 endif
 840 if with_gbm
 841   pre_args += '-DHAVE_DRM_PLATFORM'
 842 endif
 843
 844 with_android_stub = get_option('android-stub')
 845 if with_android_stub and not with_platform_android
 846   error('`-D android-stub=true` makes no sense without `-D platforms=android`')
 847 endif
 848
 849 if with_platform_android
 850   if not with_android_stub
 851     dep_android = [
 852       dependency('cutils'),
 853       dependency('hardware'),
 854       dependency('sync'),
 855       dependency('backtrace')
 856     ]
 857     if get_option('platform-sdk-version') >= 26
 858       dep_android += dependency('nativewindow')
 859     endif
 860   endif
 861   pre_args += [
 862     '-DHAVE_ANDROID_PLATFORM',
 863     '-DANDROID',
 864     '-DANDROID_API_LEVEL=' + get_option('platform-sdk-version').to_string()
 865   ]
 866 endif
 867 if with_platform_haiku
 868   pre_args += '-DHAVE_HAIKU_PLATFORM'
 869 endif
 870
 871 prog_python = import('python').find_installation('python3')
 872 has_mako = run_command(
 873   prog_python, '-c',
 874   '''
 875 from distutils.version import StrictVersion
 876 import mako
 877 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 878   ''')
 879 if has_mako.returncode() != 0
 880   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 881 endif
 882
 883 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 884   error('When using GCC, version 4.4.6 or later is required.')
 885 endif
 886
 887 # Support systems without ETIME (e.g. FreeBSD)
 888 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 889   pre_args += '-DETIME=ETIMEDOUT'
 890 endif
 891
 892 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 893 if get_option('buildtype') == 'debug'
 894   pre_args += '-DDEBUG'
 895 endif
 896
 897 with_shader_cache = false
 898 _shader_cache = get_option('shader-cache')
 899 if _shader_cache == 'true'
 900   _shader_cache = 'enabled'
 901   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 902 elif _shader_cache == 'false'
 903   _shader_cache = 'disabled'
 904   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 905 endif
 906 if _shader_cache != 'disabled'
 907   if host_machine.system() == 'windows'
 908     if _shader_cache == 'enabled'
 909       error('Shader Cache does not currently work on Windows')
 910     endif
 911   else
 912     pre_args += '-DENABLE_SHADER_CACHE'
 913     with_shader_cache = true
 914   endif
 915 endif
 916
 917 # Check for GCC style builtins
 918 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 919              'ffsll', 'popcount', 'popcountll', 'unreachable']
 920   if cc.has_function(b)
 921     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 922   endif
 923 endforeach
 924
 925 # check for GCC __attribute__
 926 _attributes = [
 927   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 928   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 929 ]
 930 foreach a : cc.get_supported_function_attributes(_attributes)
 931   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 932 endforeach
 933 if cc.has_function_attribute('visibility:hidden')
 934   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 935 endif
 936 if cc.compiles('__uint128_t foo(void) { return 0; }',
 937                name : '__uint128_t')
 938   pre_args += '-DHAVE_UINT128'
 939 endif
 940
 941 # TODO: this is very incomplete
 942 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 943   pre_args += '-D_GNU_SOURCE'
 944 elif host_machine.system() == 'sunos'
 945   pre_args += '-D__EXTENSIONS__'
 946 elif host_machine.system() == 'windows'
 947   pre_args += [
 948     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 949     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 950     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 951   ]
 952   if cc.get_id() == 'msvc'
 953     pre_args += [
 954       '-DVC_EXTRALEAN',
 955       '-D_CRT_SECURE_NO_WARNINGS',
 956       '-D_CRT_SECURE_NO_DEPRECATE',
 957       '-D_SCL_SECURE_NO_WARNINGS',
 958       '-D_SCL_SECURE_NO_DEPRECATE',
 959       '-D_ALLOW_KEYWORD_MACROS',
 960       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 961     ]
 962   else
 963     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 964   endif
 965 endif
 966
 967 # Check for generic C arguments
 968 c_args = []
 969 c_msvc_compat_args = []
 970 no_override_init_args = []
 971 cpp_args = []
 972 cpp_msvc_compat_args = []
 973 if cc.get_id() == 'msvc'
 974   foreach a : ['/wd4018',  # signed/unsigned mismatch
 975                '/wd4056',  # overflow in floating-point constant arithmetic
 976                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 977                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 978                '/wd4305',  # trancation from 'type1' to 'type2'
 979                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 980                '/wd4756',  # overflow in constant arithmetic
 981                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 982                '/wd4996',  # disabled deprecated POSIX name warnings
 983                '/wd4291',  # no matching operator delete found
 984                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 985                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 986                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 987                '/wd4309',  # 'initializing': truncation of constant value
 988                '/wd4838',  # conversion from 'int' to 'const char' requires a narrowing conversion
 989                '/we4020',  # Error when passing the wrong number of parameters
 990                '/we4024',  # Error when passing different type of parameter
 991               ]
 992     if cc.has_argument(a)
 993       c_args += a
 994     endif
 995     if cpp.has_argument(a)
 996       cpp_args += a
 997     endif
 998   endforeach
 999   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
1000     c_args += '-Wno-microsoft-enum-value'
1001     cpp_args += '-Wno-microsoft-enum-value'
1002   endif
1003 else
1004   _trial = [
1005     '-Werror=implicit-function-declaration',
1006     '-Werror=missing-prototypes',
1007     '-Werror=return-type',
1008     '-Werror=empty-body',
1009     '-Werror=incompatible-pointer-types',
1010     '-Werror=int-conversion',
1011     '-Wimplicit-fallthrough',
1012     '-Wno-missing-field-initializers',
1013     '-Wno-format-truncation',
1014     '-fno-math-errno',
1015     '-fno-trapping-math',
1016     '-Qunused-arguments',
1017     '-fno-common',
1018   ]
1019   # MinGW chokes on format specifiers and I can't get it all working
1020   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1021     _trial += ['-Werror=format', '-Wformat-security']
1022   endif
1023   foreach a : _trial
1024     if cc.has_argument(a)
1025       c_args += a
1026     endif
1027   endforeach
1028
1029   _trial = [
1030     '-Werror=return-type',
1031     '-Werror=empty-body',
1032     '-Wno-non-virtual-dtor',
1033     '-Wno-missing-field-initializers',
1034     '-Wno-format-truncation',
1035     '-fno-math-errno',
1036     '-fno-trapping-math',
1037     '-Qunused-arguments',
1038     # Some classes use custom new operator which zeroes memory, however
1039     # gcc does aggressive dead-store elimination which threats all writes
1040     # to the memory before the constructor as "dead stores".
1041     # For now we disable this optimization.
1042     '-flifetime-dse=1',
1043   ]
1044   # MinGW chokes on format specifiers and I can't get it all working
1045   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1046     _trial += ['-Werror=format', '-Wformat-security']
1047   endif
1048   foreach a : _trial
1049     if cpp.has_argument(a)
1050       cpp_args += a
1051     endif
1052   endforeach
1053
1054   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1055     if cc.has_argument(a)
1056       no_override_init_args += a
1057     endif
1058   endforeach
1059
1060   # Check for C and C++ arguments for MSVC compatibility. These are only used
1061   # in parts of the mesa code base that need to compile with MSVC, mainly
1062   # common code
1063   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1064     if cc.has_argument(a)
1065       c_msvc_compat_args += a
1066     endif
1067     if cpp.has_argument(a)
1068       cpp_msvc_compat_args += a
1069     endif
1070   endforeach
1071 endif
1072
1073 # set linker arguments
1074 if host_machine.system() == 'windows'
1075   if cc.get_id() == 'msvc'
1076     add_project_link_arguments(
1077       '/fixed:no',
1078       '/dynamicbase',
1079       '/nxcompat',
1080       language : ['c', 'cpp'],
1081     )
1082     if get_option('buildtype') != 'debug'
1083       add_project_link_arguments(
1084         '/incremental:no',
1085         language : ['c', 'cpp'],
1086       )
1087     endif
1088   else
1089     add_project_link_arguments(
1090       '-Wl,--nxcompat',
1091       '-Wl,--dynamicbase',
1092       '-static-libgcc',
1093       '-static-libstdc++',
1094       language : ['c', 'cpp'],
1095     )
1096   endif
1097 endif
1098
1099 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1100   pre_args += '-DUSE_SSE41'
1101   with_sse41 = true
1102   sse41_args = ['-msse4.1']
1103
1104   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1105   # that's not guaranteed
1106   if host_machine.cpu_family() == 'x86'
1107     sse41_args += '-mstackrealign'
1108   endif
1109 else
1110   with_sse41 = false
1111   sse41_args = []
1112 endif
1113
1114 # Check for GCC style atomics
1115 dep_atomic = null_dep
1116
1117 if cc.compiles('''#include <stdint.h>
1118                   int main() {
1119                     struct {
1120                       uint64_t *v;
1121                     } x;
1122                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1123                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1124
1125                   }''',
1126                name : 'GCC atomic builtins')
1127   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1128
1129   # Not all atomic calls can be turned into lock-free instructions, in which
1130   # GCC will make calls into the libatomic library. Check whether we need to
1131   # link with -latomic.
1132   #
1133   # This can happen for 64-bit atomic operations on 32-bit architectures such
1134   # as ARM.
1135   if not cc.links('''#include <stdint.h>
1136                      int main() {
1137                        struct {
1138                          uint64_t *v;
1139                        } x;
1140                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1141                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1142                      }''',
1143                   name : 'GCC atomic builtins required -latomic')
1144     dep_atomic = cc.find_library('atomic')
1145   endif
1146 endif
1147 if not cc.links('''#include <stdint.h>
1148                    uint64_t v;
1149                    int main() {
1150                      return __sync_add_and_fetch(&v, (uint64_t)1);
1151                    }''',
1152                 dependencies : dep_atomic,
1153                 name : 'GCC 64bit atomics')
1154   pre_args += '-DMISSING_64BIT_ATOMICS'
1155 endif
1156
1157 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1158
1159 # TODO: shared/static? Is this even worth doing?
1160
1161 with_asm_arch = ''
1162 if host_machine.cpu_family() == 'x86'
1163   if system_has_kms_drm or host_machine.system() == 'gnu'
1164     with_asm_arch = 'x86'
1165     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1166                  '-DUSE_SSE_ASM']
1167
1168     if with_glx_read_only_text
1169       pre_args += ['-DGLX_X86_READONLY_TEXT']
1170     endif
1171   endif
1172 elif host_machine.cpu_family() == 'x86_64'
1173   if system_has_kms_drm
1174     with_asm_arch = 'x86_64'
1175     pre_args += ['-DUSE_X86_64_ASM']
1176   endif
1177 elif host_machine.cpu_family() == 'arm'
1178   if system_has_kms_drm
1179     with_asm_arch = 'arm'
1180     pre_args += ['-DUSE_ARM_ASM']
1181   endif
1182 elif host_machine.cpu_family() == 'aarch64'
1183   if system_has_kms_drm
1184     with_asm_arch = 'aarch64'
1185     pre_args += ['-DUSE_AARCH64_ASM']
1186   endif
1187 elif host_machine.cpu_family() == 'sparc64'
1188   if system_has_kms_drm
1189     with_asm_arch = 'sparc'
1190     pre_args += ['-DUSE_SPARC_ASM']
1191   endif
1192 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1193   if system_has_kms_drm
1194     with_asm_arch = 'ppc64le'
1195     pre_args += ['-DUSE_PPC64LE_ASM']
1196   endif
1197 endif
1198
1199 # Check for standard headers and functions
1200 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1201   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1202   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1203   pre_args += '-DMAJOR_IN_SYSMACROS'
1204 endif
1205 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1206   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1207   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1208   pre_args += '-DMAJOR_IN_MKDEV'
1209 endif
1210
1211 if not ['linux'].contains(host_machine.system())
1212   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1213   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1214     pre_args += '-DHAVE_SYS_SYSCTL_H'
1215   endif
1216 endif
1217
1218 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1219   if cc.check_header(h)
1220     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1221   endif
1222 endforeach
1223
1224 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1225   if cc.has_function(f)
1226     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1227   endif
1228 endforeach
1229
1230 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1231                         args : '-D_GNU_SOURCE')
1232    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1233 elif with_tools.contains('intel')
1234   error('Intel tools require the program_invocation_name variable')
1235 endif
1236
1237 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1238 # This means that this check will succeed, but then compilation will later
1239 # fail. MSVC doesn't have this function at all, so only check for it on
1240 # non-windows platforms.
1241 if host_machine.system() != 'windows'
1242   if cc.has_function('posix_memalign')
1243     pre_args += '-DHAVE_POSIX_MEMALIGN'
1244   endif
1245 endif
1246
1247 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1248    #include <dirent.h>''')
1249    pre_args += '-DHAVE_DIRENT_D_TYPE'
1250 endif
1251
1252 # strtod locale support
1253 if cc.links('''
1254     #define _GNU_SOURCE
1255     #include <stdlib.h>
1256     #include <locale.h>
1257     #ifdef HAVE_XLOCALE_H
1258     #include <xlocale.h>
1259     #endif
1260     int main() {
1261       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1262       const char *s = "1.0";
1263       char *end;
1264       double d = strtod_l(s, end, loc);
1265       float f = strtof_l(s, end, loc);
1266       freelocale(loc);
1267       return 0;
1268     }''',
1269     args : pre_args,
1270     name : 'strtod has locale support')
1271   pre_args += '-DHAVE_STRTOD_L'
1272 endif
1273
1274 # Check for some linker flags
1275 ld_args_bsymbolic = []
1276 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1277   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1278 endif
1279 ld_args_gc_sections = []
1280 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1281             args : '-Wl,--gc-sections', name : 'gc-sections')
1282   ld_args_gc_sections += '-Wl,--gc-sections'
1283 endif
1284 with_ld_version_script = false
1285 if cc.links('int main() { return 0; }',
1286             args : '-Wl,--version-script=@0@'.format(
1287               join_paths(meson.source_root(), 'build-support/conftest.map')),
1288             name : 'version-script')
1289   with_ld_version_script = true
1290 endif
1291 with_ld_dynamic_list = false
1292 if cc.links('int main() { return 0; }',
1293             args : '-Wl,--dynamic-list=@0@'.format(
1294               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1295             name : 'dynamic-list')
1296   with_ld_dynamic_list = true
1297 endif
1298
1299 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1300
1301 # check for dl support
1302 dep_dl = null_dep
1303 if not cc.has_function('dlopen')
1304   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1305 endif
1306 if cc.has_function('dladdr', dependencies : dep_dl)
1307   # This is really only required for megadrivers
1308   pre_args += '-DHAVE_DLADDR'
1309 endif
1310
1311 if cc.has_function('dl_iterate_phdr')
1312   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1313 elif with_intel_vk
1314   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1315 elif with_dri_i965 and with_shader_cache
1316   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1317 endif
1318
1319 # Determine whether or not the rt library is needed for time functions
1320 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1321   dep_clock = null_dep
1322 else
1323   dep_clock = cc.find_library('rt')
1324 endif
1325
1326 # TODO: some of these may be conditional
1327 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1328 pre_args += '-DHAVE_ZLIB'
1329
1330 _zstd = get_option('zstd')
1331 if _zstd == 'true'
1332   _zstd = 'enabled'
1333   warning('zstd option "true" deprecated, please use "enabled" instead.')
1334 elif _zstd == 'false'
1335   _zstd = 'disabled'
1336   warning('zstd option "false" deprecated, please use "disabled" instead.')
1337 endif
1338 if _zstd != 'disabled'
1339   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1340   if dep_zstd.found()
1341     pre_args += '-DHAVE_ZSTD'
1342   endif
1343 else
1344   dep_zstd = null_dep
1345 endif
1346
1347 dep_thread = dependency('threads')
1348 if dep_thread.found() and host_machine.system() != 'windows'
1349   pre_args += '-DHAVE_PTHREAD'
1350   if cc.has_function(
1351       'pthread_setaffinity_np',
1352       dependencies : dep_thread,
1353       prefix : '#include <pthread.h>',
1354       args : '-D_GNU_SOURCE')
1355     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1356   endif
1357   if cc.has_function(
1358       'pthread_setaffinity_np',
1359       dependencies : dep_thread,
1360       prefix : '#include <pthread_np.h>')
1361     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1362   endif
1363 endif
1364 if host_machine.system() != 'windows'
1365   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1366 else
1367   dep_expat = null_dep
1368 endif
1369 # this only exists on linux so either this is linux and it will be found, or
1370 # it's not linux and wont
1371 dep_m = cc.find_library('m', required : false)
1372
1373 # Check for libdrm. Various drivers have different libdrm version requirements,
1374 # but we always want to use the same version for all libdrm modules. That means
1375 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1376 # bar are both on use 2.4.3 for both of them
1377 dep_libdrm_amdgpu = null_dep
1378 dep_libdrm_radeon = null_dep
1379 dep_libdrm_nouveau = null_dep
1380 dep_libdrm_intel = null_dep
1381
1382 _drm_amdgpu_ver = '2.4.100'
1383 _drm_radeon_ver = '2.4.71'
1384 _drm_nouveau_ver = '2.4.102'
1385 _drm_intel_ver = '2.4.75'
1386 _drm_ver = '2.4.81'
1387
1388 _libdrm_checks = [
1389   ['intel', with_dri_i915 or with_gallium_i915],
1390   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1391   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1392               with_gallium_r300 or with_gallium_r600)],
1393   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1394 ]
1395
1396 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1397 # library.
1398 if with_gallium_vc4
1399   _drm_ver = '2.4.89'
1400 endif
1401
1402 # etnaviv only needs core libdrm
1403 if with_gallium_etnaviv
1404   _drm_ver = '2.4.89'
1405 endif
1406
1407 # Loop over the enables versions and get the highest libdrm requirement for all
1408 # active drivers.
1409 _drm_blame = ''
1410 foreach d : _libdrm_checks
1411   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1412   if d[1] and ver.version_compare('>' + _drm_ver)
1413     _drm_ver = ver
1414     _drm_blame = d[0]
1415   endif
1416 endforeach
1417 if _drm_blame != ''
1418   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1419 endif
1420
1421 # Then get each libdrm module
1422 foreach d : _libdrm_checks
1423   if d[1]
1424     set_variable(
1425       'dep_libdrm_' + d[0],
1426       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1427     )
1428   endif
1429 endforeach
1430
1431 with_gallium_drisw_kms = false
1432 dep_libdrm = dependency(
1433   'libdrm', version : '>=' + _drm_ver,
1434   # GNU/Hurd includes egl_dri2, without drm.
1435   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1436 )
1437 if dep_libdrm.found()
1438   pre_args += '-DHAVE_LIBDRM'
1439   if with_dri_platform == 'drm' and with_dri
1440     with_gallium_drisw_kms = true
1441   endif
1442 endif
1443
1444 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1445 llvm_optional_modules = ['coroutines']
1446 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1447   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1448   if with_gallium_r600
1449     llvm_modules += 'asmparser'
1450   endif
1451 endif
1452 if with_gallium_opencl
1453   llvm_modules += [
1454     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1455     'lto', 'option', 'objcarcopts', 'profiledata',
1456   ]
1457 endif
1458
1459 if with_amd_vk or with_gallium_radeonsi
1460   _llvm_version = '>= 8.0.0'
1461 elif with_gallium_swr
1462   _llvm_version = '>= 6.0.0'
1463 else
1464   _llvm_version = '>= 3.9.0'
1465 endif
1466
1467 _shared_llvm = get_option('shared-llvm')
1468 if _shared_llvm == 'true'
1469   _shared_llvm = 'enabled'
1470   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1471 elif _shared_llvm == 'false'
1472   _shared_llvm = 'disabled'
1473   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1474 endif
1475 if _shared_llvm == 'auto'
1476   _shared_llvm = (host_machine.system() != 'windows')
1477 else
1478   _shared_llvm = (_shared_llvm == 'enabled')
1479 endif
1480 _llvm = get_option('llvm')
1481 if _llvm == 'true'
1482   _llvm = 'enabled'
1483   warning('llvm option "true" deprecated, please use "enabled" instead.')
1484 elif _llvm == 'false'
1485   _llvm = 'disabled'
1486   warning('llvm option "false" deprecated, please use "disabled" instead.')
1487 endif
1488
1489 # the cmake method can only link statically, so don't attempt to use it if we
1490 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1491 # linking is requested, so we need to force the config-tool method to be used
1492 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1493 # linking is requested.
1494 _llvm_method = 'auto'
1495 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1496   _llvm_method = 'config-tool'
1497 endif
1498
1499 dep_llvm = null_dep
1500 with_llvm = false
1501 if _llvm != 'disabled'
1502   dep_llvm = dependency(
1503     'llvm',
1504     version : _llvm_version,
1505     modules : llvm_modules,
1506     optional_modules : llvm_optional_modules,
1507     required : (
1508       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1509       with_gallium_opencl or _llvm == 'enabled'
1510     ),
1511     static : not _shared_llvm,
1512     method : _llvm_method,
1513     fallback : ['llvm', 'dep_llvm'],
1514   )
1515   with_llvm = dep_llvm.found()
1516 endif
1517 if with_llvm
1518   pre_args += '-DLLVM_AVAILABLE'
1519   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1520   pre_args += '-DLLVM_IS_SHARED=@0@'.format(_shared_llvm.to_int())
1521
1522   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1523   # programs, so we need to build all C++ code in mesa without rtti as well to
1524   # ensure that linking works.
1525   #
1526   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1527   # builtin llvm-config based finder. A new generic variable getter method
1528   # has also been added, so we'll use that if we can, to cover the cmake case.
1529   if dep_llvm.type_name() == 'internal'
1530     _rtti = subproject('llvm').get_variable('has_rtti', true)
1531   else
1532     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1533     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1534   endif
1535   if not _rtti
1536     if with_gallium_nouveau
1537       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1538     elif with_gallium_opencl
1539       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1540     endif
1541     if cc.get_id() == 'msvc'
1542       cpp_args += '/GR-'
1543     else
1544       cpp_args += '-fno-rtti'
1545     endif
1546   endif
1547 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1548   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1549 elif with_gallium_opencl
1550   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1551 endif
1552
1553 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1554     (with_gallium_r600 and with_llvm))
1555   dep_elf = dependency('libelf', required : false)
1556   if not dep_elf.found()
1557     dep_elf = cc.find_library('elf')
1558   endif
1559 else
1560   dep_elf = null_dep
1561 endif
1562
1563 dep_glvnd = null_dep
1564 if with_glvnd
1565   dep_glvnd = dependency('libglvnd', version : '>= 1.3.2')
1566   pre_args += '-DUSE_LIBGLVND=1'
1567 endif
1568
1569 _valgrind = get_option('valgrind')
1570 if _valgrind == 'true'
1571   _valgrind = 'enabled'
1572   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1573 elif _valgrind == 'false'
1574   _valgrind = 'disabled'
1575   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1576 endif
1577 if _valgrind != 'disabled'
1578   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1579   if dep_valgrind.found()
1580     pre_args += '-DHAVE_VALGRIND'
1581   endif
1582 else
1583   dep_valgrind = null_dep
1584 endif
1585
1586 # pthread stubs. Lets not and say we didn't
1587
1588 if host_machine.system() == 'windows'
1589   # Prefer the winflexbison versions, they're much easier to install and have
1590   # better windows support.
1591
1592   prog_flex = find_program('win_flex', required : false)
1593   if prog_flex.found()
1594     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1595     # _fileno functions)
1596     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1597   else
1598     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1599   endif
1600   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1601   # __STDC__ macro to determine whether it's safe to use const keyword, but
1602   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1603   prog_flex += '-DYY_USE_CONST='
1604
1605   prog_bison = find_program('win_bison', required : false)
1606   if not prog_bison.found()
1607     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1608   endif
1609 else
1610   prog_bison = find_program('bison', required : with_any_opengl)
1611
1612   # Disable deprecated keyword warnings, since we have to use them for
1613   # old-bison compat.  See discussion in
1614   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1615   if find_program('bison', required : false, version : '> 2.3').found()
1616     prog_bison = [prog_bison, '-Wno-deprecated']
1617   endif
1618
1619   prog_flex = find_program('flex', required : with_any_opengl)
1620 endif
1621
1622 dep_selinux = null_dep
1623 if get_option('selinux')
1624   dep_selinux = dependency('libselinux')
1625   pre_args += '-DMESA_SELINUX'
1626 endif
1627
1628 _libunwind = get_option('libunwind')
1629 if _libunwind == 'true'
1630   _libunwind = 'enabled'
1631   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1632 elif _libunwind == 'false'
1633   _libunwind = 'disabled'
1634   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1635 endif
1636 if _libunwind != 'disabled'
1637   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1638   if dep_unwind.found()
1639     pre_args += '-DHAVE_LIBUNWIND'
1640   endif
1641 else
1642   dep_unwind = null_dep
1643 endif
1644
1645 if with_osmesa != 'none'
1646   if with_osmesa == 'gallium' and not with_gallium_softpipe
1647     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1648   endif
1649   if host_machine.system() == 'windows'
1650     osmesa_lib_name = 'osmesa'
1651   else
1652     osmesa_lib_name = 'OSMesa'
1653   endif
1654   osmesa_bits = get_option('osmesa-bits')
1655   if osmesa_bits != '8'
1656     if with_dri or with_glx != 'disabled'
1657       error('OSMesa bits must be 8 if building glx or dri based drivers')
1658     endif
1659     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1660     pre_args += [
1661       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1662     ]
1663   endif
1664 endif
1665
1666 # TODO: symbol mangling
1667
1668 if with_platform_wayland
1669   dep_wl_scanner = dependency('wayland-scanner', native: true)
1670   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1671   if dep_wl_scanner.version().version_compare('>= 1.15')
1672     wl_scanner_arg = 'private-code'
1673   else
1674     wl_scanner_arg = 'code'
1675   endif
1676   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1677   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1678   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1679   if with_egl
1680     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1681     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1682   endif
1683   wayland_dmabuf_xml = join_paths(
1684     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1685     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1686   )
1687   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1688 endif
1689
1690 dep_x11 = null_dep
1691 dep_xext = null_dep
1692 dep_xdamage = null_dep
1693 dep_xfixes = null_dep
1694 dep_x11_xcb = null_dep
1695 dep_xcb = null_dep
1696 dep_xcb_glx = null_dep
1697 dep_xcb_dri2 = null_dep
1698 dep_xcb_dri3 = null_dep
1699 dep_dri2proto = null_dep
1700 dep_glproto = null_dep
1701 dep_xxf86vm = null_dep
1702 dep_xcb_dri3 = null_dep
1703 dep_xcb_present = null_dep
1704 dep_xcb_sync = null_dep
1705 dep_xcb_xfixes = null_dep
1706 dep_xshmfence = null_dep
1707 dep_xcb_xrandr = null_dep
1708 dep_xcb_shm = null_dep
1709 dep_xlib_xrandr = null_dep
1710 if with_platform_x11
1711   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1712     dep_x11 = dependency('x11')
1713     dep_xext = dependency('xext')
1714     dep_xcb = dependency('xcb')
1715   elif with_glx == 'dri'
1716     dep_x11 = dependency('x11')
1717     dep_xext = dependency('xext')
1718     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1719     dep_xfixes = dependency('xfixes')
1720     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1721     dep_xcb_shm = dependency('xcb-shm')
1722   endif
1723   if (with_any_vk or with_glx == 'dri' or with_egl or
1724        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1725         with_gallium_omx != 'disabled'))
1726     dep_xcb = dependency('xcb')
1727     dep_x11_xcb = dependency('x11-xcb')
1728     if with_dri_platform == 'drm' and not dep_libdrm.found()
1729       error('libdrm required for gallium video statetrackers when using x11')
1730     endif
1731   endif
1732   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1733     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1734
1735     if with_dri3
1736       pre_args += '-DHAVE_DRI3'
1737       dep_xcb_dri3 = dependency('xcb-dri3')
1738       dep_xcb_present = dependency('xcb-present')
1739       # until xcb-dri3 has been around long enough to make a hard-dependency:
1740       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1741           dep_xcb_present.version().version_compare('>= 1.13'))
1742         pre_args += '-DHAVE_DRI3_MODIFIERS'
1743       endif
1744       dep_xcb_sync = dependency('xcb-sync')
1745       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1746     endif
1747   endif
1748   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1749     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1750   endif
1751   if with_glx == 'dri'
1752     if with_dri_platform == 'drm'
1753       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1754       dep_xxf86vm = dependency('xxf86vm')
1755     endif
1756   endif
1757   if (with_egl or (
1758       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1759       with_gallium_omx != 'disabled'))
1760     dep_xcb_xfixes = dependency('xcb-xfixes')
1761   endif
1762   if with_xlib_lease
1763     dep_xcb_xrandr = dependency('xcb-randr')
1764     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1765   endif
1766 endif
1767
1768 if get_option('gallium-extra-hud')
1769   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1770 endif
1771
1772 _sensors = get_option('lmsensors')
1773 if _sensors == 'true'
1774   _sensors = 'enabled'
1775   warning('sensors option "true" deprecated, please use "enabled" instead.')
1776 elif _sensors == 'false'
1777   _sensors = 'disabled'
1778   warning('sensors option "false" deprecated, please use "disabled" instead.')
1779 endif
1780 if _sensors != 'disabled'
1781   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1782   if dep_lmsensors.found()
1783     pre_args += '-DHAVE_LIBSENSORS=1'
1784   endif
1785 else
1786   dep_lmsensors = null_dep
1787 endif
1788
1789 # If the compiler supports it, put function and data symbols in their
1790 # own sections and GC the sections after linking.  This lets drivers
1791 # drop shared code unused by that specific driver (particularly
1792 # relevant for Vulkan drivers).
1793 if cc.has_link_argument('-Wl,--gc-sections')
1794   add_project_arguments('-Wl,--gc-sections', language : ['c', 'cpp'])
1795   foreach a: ['-ffunction-sections', '-fdata-sections']
1796     if cc.has_argument(a)
1797       add_project_arguments(a, language : ['c', 'cpp'])
1798     endif
1799   endforeach
1800 endif
1801
1802 foreach a : pre_args
1803   add_project_arguments(a, language : ['c', 'cpp'])
1804 endforeach
1805 foreach a : c_args
1806   add_project_arguments(a, language : ['c'])
1807 endforeach
1808 foreach a : cpp_args
1809   add_project_arguments(a, language : ['cpp'])
1810 endforeach
1811
1812 gl_priv_reqs = []
1813
1814 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1815   gl_priv_reqs += ['x11', 'xext', 'xcb']
1816 elif with_glx == 'dri'
1817   gl_priv_reqs += [
1818     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1819     'xcb-glx >= 1.8.1']
1820   if with_dri_platform == 'drm'
1821     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1822     gl_priv_reqs += 'xxf86vm'
1823   endif
1824 endif
1825 if dep_libdrm.found()
1826   gl_priv_reqs += 'libdrm >= 2.4.75'
1827 endif
1828
1829 gl_priv_libs = []
1830 if dep_thread.found()
1831   gl_priv_libs += ['-lpthread', '-pthread']
1832 endif
1833 if dep_m.found()
1834   gl_priv_libs += '-lm'
1835 endif
1836 if dep_dl.found()
1837   gl_priv_libs += '-ldl'
1838 endif
1839
1840 pkg = import('pkgconfig')
1841
1842 if host_machine.system() == 'windows'
1843   prog_dumpbin = find_program('dumpbin', required : false)
1844   with_symbols_check = prog_dumpbin.found() and with_tests
1845   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1846 else
1847   prog_nm = find_program('nm')
1848   with_symbols_check = with_tests
1849   symbols_check_args = ['--nm', prog_nm.path()]
1850 endif
1851
1852 # This quirk needs to be applied to sources with functions defined in assembly
1853 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1854 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1855
1856 subdir('include')
1857 subdir('bin')
1858 subdir('src')
1859
1860 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1861 # formatting below unless the first argument is passed as a variable. This has
1862 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1863 # for backwards compatibility.
1864 _with_opengl_string = with_opengl ? 'yes' : 'no'
1865
1866 lines = ['',
1867   'prefix:          ' + get_option('prefix'),
1868   'libdir:          ' + get_option('libdir'),
1869   'includedir:      ' + get_option('includedir'),
1870   '',
1871   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1872                                                     with_gles1 ? 'yes' : 'no',
1873                                                     with_gles2 ? 'yes' : 'no'),
1874 ]
1875
1876 if with_osmesa != 'none'
1877   lines += ''
1878   suffix = ''
1879   if with_osmesa == 'gallium'
1880     suffix = '(Gallium)'
1881   endif
1882   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1883 else
1884   lines += 'OSMesa:          no'
1885 endif
1886
1887 if with_dri
1888   lines += ''
1889   lines += 'DRI platform:    ' + with_dri_platform
1890   if dri_drivers.length() != 0 and dri_drivers != ['']
1891     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1892   else
1893     lines += 'DRI drivers:     no'
1894   endif
1895   lines += 'DRI driver dir:  ' + dri_drivers_path
1896 endif
1897
1898 if with_glx != 'disabled'
1899   lines += ''
1900   if with_glx == 'dri'
1901     lines += 'GLX:             DRI-based'
1902   elif with_glx == 'xlib'
1903     lines += 'GLX:             Xlib-based'
1904   elif with_glx == 'gallium-xlib'
1905     lines += 'GLX:             Xlib-based (Gallium)'
1906   else
1907     lines += 'GLX:             ' + with_glx
1908   endif
1909 endif
1910
1911 lines += ''
1912 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1913 if with_egl
1914   egl_drivers = []
1915   if with_dri
1916     egl_drivers += 'builtin:egl_dri2'
1917   endif
1918   if with_dri3
1919     egl_drivers += 'builtin:egl_dri3'
1920   endif
1921   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1922 endif
1923 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1924 if with_egl or with_any_vk
1925   _platforms += 'surfaceless'
1926   if with_gbm
1927     _platforms += 'drm'
1928   endif
1929   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1930 endif
1931
1932 lines += ''
1933 if with_any_vk
1934   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1935   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1936 else
1937   lines += 'Vulkan drivers:  no'
1938 endif
1939
1940 lines += ''
1941 if with_llvm
1942   lines += 'llvm:            yes'
1943   lines += 'llvm-version:    ' + dep_llvm.version()
1944 else
1945   lines += 'llvm:            no'
1946 endif
1947
1948 lines += ''
1949 if with_gallium
1950   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1951   gallium_st = ['mesa']
1952   if with_gallium_xa
1953     gallium_st += 'xa'
1954   endif
1955   if with_gallium_xvmc
1956     gallium_st += 'xvmc'
1957   endif
1958   if with_gallium_xvmc
1959     gallium_st += 'xvmc'
1960   endif
1961   if with_gallium_vdpau
1962     gallium_st += 'vdpau'
1963   endif
1964   if with_gallium_omx != 'disabled'
1965     gallium_st += 'omx' + with_gallium_omx
1966   endif
1967   if with_gallium_va
1968     gallium_st += 'va'
1969   endif
1970   if with_gallium_st_nine
1971     gallium_st += 'nine'
1972   endif
1973   if with_gallium_opencl
1974     gallium_st += 'clover'
1975   endif
1976   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1977 else
1978   lines += 'Gallium:         no'
1979 endif
1980
1981 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1982
1983 lines += ''
1984 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1985
1986
1987 indent = '        '
1988 summary = indent + ('\n' + indent).join(lines)
1989 message('Configuration summary:\n@0@\n'.format(summary))