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_glx_read_only_text = get_option('glx-read-only-text')
  55 with_glx_direct = get_option('glx-direct')
  56 with_osmesa = get_option('osmesa')
  57 with_swr_arches = get_option('swr-arches')
  58 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = [
  62     'drm-shim',
  63     'etnaviv',
  64     'freedreno',
  65     'glsl',
  66     'intel',
  67     'intel-ui',
  68     'lima',
  69     'nir',
  70     'nouveau',
  71     'xvmc',
  72   ]
  73 endif
  74
  75 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  76 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  77
  78 dri_drivers_path = get_option('dri-drivers-path')
  79 if dri_drivers_path == ''
  80   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  81 endif
  82 dri_search_path = get_option('dri-search-path')
  83 if dri_search_path == ''
  84   dri_search_path = dri_drivers_path
  85 endif
  86
  87 with_gles1 = get_option('gles1')
  88 if with_gles1 == 'true'
  89   with_gles1 = 'enabled'
  90   warning('gles1 option "true" deprecated, please use "enabled" instead.')
  91 elif with_gles1 == 'false'
  92   with_gles1 = 'disabled'
  93   warning('gles1 option "false" deprecated, please use "disabled" instead.')
  94 endif
  95 with_gles2 = get_option('gles2')
  96 if with_gles2 == 'true'
  97   with_gles2 = 'enabled'
  98   warning('gles2 option "true" deprecated, please use "enabled" instead.')
  99 elif with_gles2 == 'false'
 100   with_gles2 = 'disabled'
 101   warning('gles2 option "false" deprecated, please use "disabled" instead.')
 102 endif
 103 if host_machine.system() == 'windows'
 104   if with_gles1 == 'auto'
 105     with_gles1 = 'disabled'
 106   endif
 107   if with_gles2 == 'auto'
 108     with_gles2 = 'disabled'
 109   endif
 110 endif
 111 with_opengl = get_option('opengl')
 112
 113 # Default shared glapi off for windows, on elsewhere.
 114 _sg = get_option('shared-glapi')
 115 if _sg == 'true'
 116   _sg = 'enabled'
 117   warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
 118 elif _sg == 'false'
 119   _sg = 'disabled'
 120   warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
 121 endif
 122 if _sg == 'auto'
 123   with_shared_glapi = host_machine.system() != 'windows'
 124 else
 125   with_shared_glapi = _sg == 'enabled'
 126 endif
 127
 128 # shared-glapi is required if at least two OpenGL APIs are being built
 129 if not with_shared_glapi
 130   if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
 131       (with_gles1 == 'enabled' and with_opengl) or
 132       (with_gles2 == 'enabled' and with_opengl))
 133     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 134   endif
 135   with_gles1 = 'disabled'
 136   with_gles2 = 'disabled'
 137 endif
 138
 139 # We require OpenGL for OpenGL ES
 140 if not with_opengl
 141   if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
 142     error('building OpenGL ES without OpenGL is not supported.')
 143   endif
 144   with_gles1 = 'disabled'
 145   with_gles2 = 'disabled'
 146 endif
 147
 148 with_gles1 = with_gles1 != 'disabled'
 149 with_gles2 = with_gles2 != 'disabled'
 150 with_any_opengl = with_opengl or with_gles1 or with_gles2
 151 # Only build shared_glapi if at least one OpenGL API is enabled
 152 with_shared_glapi = with_shared_glapi and with_any_opengl
 153
 154 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 155
 156 dri_drivers = get_option('dri-drivers')
 157 if dri_drivers.contains('auto')
 158   if system_has_kms_drm
 159     # TODO: PPC, Sparc
 160     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 161       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 162     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 163       dri_drivers = []
 164     else
 165       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 166             host_machine.cpu_family()))
 167     endif
 168   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 169     # only swrast would make sense here, but gallium swrast is a much better default
 170     dri_drivers = []
 171   else
 172     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 173           host_machine.system()))
 174   endif
 175 endif
 176
 177 with_dri_i915 = dri_drivers.contains('i915')
 178 with_dri_i965 = dri_drivers.contains('i965')
 179 with_dri_r100 = dri_drivers.contains('r100')
 180 with_dri_r200 = dri_drivers.contains('r200')
 181 with_dri_nouveau = dri_drivers.contains('nouveau')
 182 with_dri_swrast = dri_drivers.contains('swrast')
 183
 184 with_dri = dri_drivers.length() != 0 and dri_drivers != ['']
 185
 186 gallium_drivers = get_option('gallium-drivers')
 187 if gallium_drivers.contains('auto')
 188   if system_has_kms_drm
 189     # TODO: PPC, Sparc
 190     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 191       gallium_drivers = [
 192         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 193         'iris'
 194       ]
 195     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 196       gallium_drivers = [
 197         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 198         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 199       ]
 200     else
 201       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 202             host_machine.cpu_family()))
 203     endif
 204   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 205     gallium_drivers = ['swrast']
 206   else
 207     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 208           host_machine.system()))
 209   endif
 210 endif
 211 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 212 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 213 with_gallium_r300 = gallium_drivers.contains('r300')
 214 with_gallium_r600 = gallium_drivers.contains('r600')
 215 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 216 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 217 with_gallium_softpipe = gallium_drivers.contains('swrast')
 218 with_gallium_vc4 = gallium_drivers.contains('vc4')
 219 with_gallium_v3d = gallium_drivers.contains('v3d')
 220 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 221 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 222 with_gallium_tegra = gallium_drivers.contains('tegra')
 223 with_gallium_iris = gallium_drivers.contains('iris')
 224 with_gallium_i915 = gallium_drivers.contains('i915')
 225 with_gallium_svga = gallium_drivers.contains('svga')
 226 with_gallium_virgl = gallium_drivers.contains('virgl')
 227 with_gallium_swr = gallium_drivers.contains('swr')
 228 with_gallium_lima = gallium_drivers.contains('lima')
 229 with_gallium_zink = gallium_drivers.contains('zink')
 230
 231 with_gallium = gallium_drivers.length() != 0 and gallium_drivers != ['']
 232
 233 if with_gallium and system_has_kms_drm
 234   _glx = get_option('glx')
 235   _egl = get_option('egl')
 236   if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
 237     with_dri = true
 238   endif
 239 endif
 240
 241 _vulkan_drivers = get_option('vulkan-drivers')
 242 if _vulkan_drivers.contains('auto')
 243   if system_has_kms_drm
 244     if host_machine.cpu_family().startswith('x86')
 245       _vulkan_drivers = ['amd', 'intel']
 246     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 247       _vulkan_drivers = []
 248     else
 249       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 250             host_machine.cpu_family()))
 251     endif
 252   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 253     # No vulkan driver supports windows or macOS currently
 254     _vulkan_drivers = []
 255   else
 256     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 257           host_machine.system()))
 258   endif
 259 endif
 260
 261 with_intel_vk = _vulkan_drivers.contains('intel')
 262 with_amd_vk = _vulkan_drivers.contains('amd')
 263 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 264 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 265
 266 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 267   error('Only one swrast provider can be built')
 268 endif
 269 if with_dri_i915 and with_gallium_i915
 270   error('Only one i915 provider can be built')
 271 endif
 272 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)
 273   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 274 endif
 275 if with_gallium_tegra and not with_gallium_nouveau
 276   error('tegra driver requires nouveau driver')
 277 endif
 278
 279 if host_machine.system() == 'darwin'
 280   with_dri_platform = 'apple'
 281   pre_args += '-DBUILDING_MESA'
 282 elif ['windows', 'cygwin'].contains(host_machine.system())
 283   with_dri_platform = 'windows'
 284 elif system_has_kms_drm
 285   with_dri_platform = 'drm'
 286 else
 287   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 288   # assert here that one of those cases has been met.
 289   # FIXME: illumos ends up here as well
 290   with_dri_platform = 'none'
 291 endif
 292
 293 _platforms = get_option('platforms')
 294 if _platforms.contains('auto')
 295   if system_has_kms_drm
 296     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 297   elif ['darwin', 'cygwin'].contains(host_machine.system())
 298     _platforms = ['x11', 'surfaceless']
 299   elif ['haiku'].contains(host_machine.system())
 300     _platforms = ['haiku']
 301   elif host_machine.system() == 'windows'
 302     _platforms = ['windows']
 303   else
 304     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 305           host_machine.system()))
 306   endif
 307 endif
 308
 309 with_platform_android = _platforms.contains('android')
 310 with_platform_x11 = _platforms.contains('x11')
 311 with_platform_wayland = _platforms.contains('wayland')
 312 with_platform_drm = _platforms.contains('drm')
 313 with_platform_haiku = _platforms.contains('haiku')
 314 with_platform_surfaceless = _platforms.contains('surfaceless')
 315 with_platform_windows = _platforms.contains('windows')
 316
 317 with_platforms = false
 318 if _platforms.length() != 0 and _platforms != ['']
 319   # sanity check that list contains no empty strings
 320   if _platforms.contains('')
 321     error('Invalid argument list given to -Dplatforms, please fix.')
 322   endif
 323   with_platforms = true
 324   egl_native_platform = _platforms[0]
 325 endif
 326
 327 _xlib_lease = get_option('xlib-lease')
 328 if _xlib_lease == 'true'
 329   _xlib_lease = 'enabled'
 330   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 331 elif _xlib_lease == 'false'
 332   _xlib_lease = 'disabled'
 333   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 334 endif
 335 if _xlib_lease == 'auto'
 336   with_xlib_lease = with_platform_x11 and with_platform_drm
 337 else
 338   with_xlib_lease = _xlib_lease == 'enabled'
 339 endif
 340
 341 with_glx = get_option('glx')
 342 if with_glx == 'auto'
 343   if with_dri
 344     with_glx = 'dri'
 345   elif with_platform_haiku
 346     with_glx = 'disabled'
 347   elif host_machine.system() == 'windows'
 348     with_glx = 'disabled'
 349   elif with_gallium
 350     # Even when building just gallium drivers the user probably wants dri
 351     with_glx = 'dri'
 352   elif with_platform_x11 and with_any_opengl and not with_any_vk
 353     # The automatic behavior should not be to turn on xlib based glx when
 354     # building only vulkan drivers
 355     with_glx = 'xlib'
 356   else
 357     with_glx = 'disabled'
 358   endif
 359 endif
 360 if with_glx == 'dri'
 361    if with_gallium
 362       with_dri = true
 363    endif
 364 endif
 365
 366 if not (with_dri or with_gallium or with_glx != 'disabled')
 367   with_gles1 = false
 368   with_gles2 = false
 369   with_opengl = false
 370   with_any_opengl = false
 371   with_shared_glapi = false
 372 endif
 373
 374 _gbm = get_option('gbm')
 375 if _gbm == 'true'
 376   _gbm = 'enabled'
 377   warning('gbm option "true" deprecated, please use "enabled" instead.')
 378 elif _gbm == 'false'
 379   _gbm = 'disabled'
 380   warning('gbm option "false" deprecated, please use "disabled" instead.')
 381 endif
 382 if _gbm == 'auto'
 383   with_gbm = system_has_kms_drm and with_dri
 384 else
 385   with_gbm = _gbm == 'enabled'
 386 endif
 387 if with_gbm and not system_has_kms_drm
 388   error('GBM only supports DRM/KMS platforms')
 389 endif
 390
 391 _egl = get_option('egl')
 392 if _egl == 'true'
 393   _egl = 'enabled'
 394   warning('egl option "true" deprecated, please use "enabled" instead.')
 395 elif _egl == 'false'
 396   _egl = 'disabled'
 397   warning('egl option "false" deprecated, please use "disabled" instead.')
 398 endif
 399 if _egl == 'auto'
 400   with_egl = (
 401     not ['darwin', 'windows'].contains(host_machine.system()) and
 402     with_dri and with_shared_glapi and with_platforms
 403   )
 404 elif _egl == 'enabled'
 405   if not with_dri
 406     error('EGL requires dri')
 407   elif not with_shared_glapi
 408     error('EGL requires shared-glapi')
 409   elif not with_platforms
 410     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
 411   elif not ['disabled', 'dri'].contains(with_glx)
 412     error('EGL requires dri, but a GLX is being built without dri')
 413   elif ['darwin', 'windows'].contains(host_machine.system())
 414     error('EGL is not available on Windows or MacOS')
 415   endif
 416   with_egl = true
 417 else
 418   with_egl = false
 419 endif
 420
 421 if with_egl and not (with_platform_drm or with_platform_surfaceless or with_platform_android)
 422   if with_gallium_radeonsi
 423     error('RadeonSI requires the drm, surfaceless or android platform when using EGL')
 424   endif
 425   if with_gallium_virgl
 426     error('Virgl requires the drm, surfaceless or android platform when using EGL')
 427   endif
 428 endif
 429
 430 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 431 if host_machine.system() != 'windows' and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 432   pre_args += '-DUSE_ELF_TLS'
 433 endif
 434
 435 if with_glx != 'disabled'
 436   if not (with_platform_x11 and with_any_opengl)
 437     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 438   elif with_glx == 'gallium-xlib'
 439     if not with_gallium
 440       error('Gallium-xlib based GLX requires at least one gallium driver')
 441     elif not with_gallium_softpipe
 442       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 443     elif with_dri
 444       error('gallium-xlib conflicts with any dri driver')
 445     endif
 446   elif with_glx == 'xlib'
 447     if with_dri
 448       error('xlib conflicts with any dri driver')
 449     endif
 450   elif with_glx == 'dri'
 451     if not with_shared_glapi
 452       error('dri based GLX requires shared-glapi')
 453     endif
 454   endif
 455 endif
 456
 457 with_glvnd = get_option('glvnd')
 458 if with_glvnd
 459   if with_platform_windows
 460     error('glvnd cannot be used on Windows')
 461   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 462     error('Cannot build glvnd support for GLX that is not DRI based.')
 463   elif with_glx == 'disabled' and not with_egl
 464     error('glvnd requires DRI based GLX and/or EGL')
 465   endif
 466   if get_option('egl-lib-suffix') != ''
 467     error('''EGL lib suffix can't be used with libglvnd''')
 468   endif
 469 endif
 470
 471 if with_vulkan_icd_dir == ''
 472   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 473 endif
 474
 475 # GNU/Hurd includes egl_dri2, without drm.
 476 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 477   host_machine.system() == 'gnu')
 478 _dri3 = get_option('dri3')
 479 if _dri3 == 'true'
 480   _dri3 = 'enabled'
 481   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 482 elif _dri3 == 'false'
 483   _dri3 = 'disabled'
 484   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 485 endif
 486 if _dri3 == 'auto'
 487   with_dri3 = system_has_kms_drm and with_dri2
 488 else
 489   with_dri3 = _dri3 == 'enabled'
 490 endif
 491
 492 if with_any_vk and (with_platform_x11 and not with_dri3)
 493   error('Vulkan drivers require dri3 for X11 support')
 494 endif
 495 if with_dri
 496   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 497     error('building dri drivers require at least one windowing system or classic osmesa')
 498   endif
 499 endif
 500
 501 _vdpau = get_option('gallium-vdpau')
 502 if _vdpau == 'true'
 503   _vdpau = 'enabled'
 504   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 505 elif _vdpau == 'false'
 506   _vdpau = 'disabled'
 507   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 508 endif
 509 if not system_has_kms_drm
 510   if _vdpau == 'enabled'
 511     error('VDPAU state tracker can only be build on unix-like OSes.')
 512   else
 513     _vdpau = 'disabled'
 514   endif
 515 elif not with_platform_x11
 516   if _vdpau == 'enabled'
 517     error('VDPAU state tracker requires X11 support.')
 518   else
 519     _vdpau = 'disabled'
 520   endif
 521 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 522           with_gallium_nouveau)
 523   if _vdpau == 'enabled'
 524     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 525   else
 526     _vdpau = 'disabled'
 527   endif
 528 endif
 529 dep_vdpau = null_dep
 530 with_gallium_vdpau = false
 531 if _vdpau != 'disabled'
 532   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 533   if dep_vdpau.found()
 534     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 535     with_gallium_vdpau = true
 536   endif
 537 endif
 538
 539 if with_gallium_vdpau
 540   pre_args += '-DHAVE_ST_VDPAU'
 541 endif
 542 vdpau_drivers_path = get_option('vdpau-libs-path')
 543 if vdpau_drivers_path == ''
 544   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 545 endif
 546
 547 if with_gallium_zink
 548   dep_vulkan = dependency('vulkan')
 549 endif
 550
 551 _xvmc = get_option('gallium-xvmc')
 552 if _xvmc == 'true'
 553   _xvmc = 'enabled'
 554   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 555 elif _xvmc == 'false'
 556   _xvmc = 'disabled'
 557   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 558 endif
 559 if not system_has_kms_drm
 560   if _xvmc == 'enabled'
 561     error('XVMC state tracker can only be build on unix-like OSes.')
 562   else
 563     _xvmc = 'disabled'
 564   endif
 565 elif not with_platform_x11
 566   if _xvmc == 'enabled'
 567     error('XVMC state tracker requires X11 support.')
 568   else
 569     _xvmc = 'disabled'
 570   endif
 571 elif not (with_gallium_r600 or with_gallium_nouveau)
 572   if _xvmc == 'enabled'
 573     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 574   else
 575     _xvmc = 'disabled'
 576   endif
 577 endif
 578 dep_xvmc = null_dep
 579 dep_xv = null_dep
 580 with_gallium_xvmc = false
 581 if _xvmc != 'disabled'
 582   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 583   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 584   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 585 endif
 586
 587 xvmc_drivers_path = get_option('xvmc-libs-path')
 588 if xvmc_drivers_path == ''
 589   xvmc_drivers_path = get_option('libdir')
 590 endif
 591
 592 _omx = get_option('gallium-omx')
 593 if not system_has_kms_drm
 594   if ['auto', 'disabled'].contains(_omx)
 595     _omx = 'disabled'
 596   else
 597     error('OMX state tracker can only be built on unix-like OSes.')
 598   endif
 599 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 600   if ['auto', 'disabled'].contains(_omx)
 601     _omx = 'disabled'
 602   else
 603     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 604   endif
 605 endif
 606 with_gallium_omx = _omx
 607 dep_omx = null_dep
 608 dep_omx_other = []
 609 if ['auto', 'bellagio'].contains(_omx)
 610   dep_omx = dependency(
 611     'libomxil-bellagio', required : _omx == 'bellagio'
 612   )
 613   if dep_omx.found()
 614     with_gallium_omx = 'bellagio'
 615   endif
 616 endif
 617 if ['auto', 'tizonia'].contains(_omx)
 618   if with_dri and with_egl
 619     dep_omx = dependency(
 620       'libtizonia', version : '>= 0.10.0',
 621       required : _omx == 'tizonia',
 622     )
 623     dep_omx_other = [
 624       dependency('libtizplatform', required : _omx == 'tizonia'),
 625       dependency('tizilheaders', required : _omx == 'tizonia'),
 626     ]
 627     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 628       with_gallium_omx = 'tizonia'
 629     endif
 630   elif _omx == 'tizonia'
 631     error('OMX-Tizonia state tracker requires dri and egl')
 632   endif
 633 endif
 634 if _omx == 'auto'
 635   with_gallium_omx = 'disabled'
 636 else
 637   with_gallium_omx = _omx
 638 endif
 639
 640 pre_args += [
 641   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 642   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 643 ]
 644
 645
 646 omx_drivers_path = get_option('omx-libs-path')
 647
 648 if with_gallium_omx != 'disabled'
 649   # Figure out where to put the omx driver.
 650   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 651   # argument to meson's get_pkgconfig_variable method.
 652   if omx_drivers_path == ''
 653     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 654     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 655     if _omx_libdir == get_option('libdir')
 656       omx_drivers_path = _omx_drivers_dir
 657     else
 658       _omx_base_dir = []
 659       # This will fail on windows. Does OMX run on windows?
 660       _omx_libdir = _omx_libdir.split('/')
 661       _omx_drivers_dir = _omx_drivers_dir.split('/')
 662       foreach o : _omx_drivers_dir
 663         if not _omx_libdir.contains(o)
 664           _omx_base_dir += o
 665         endif
 666       endforeach
 667       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 668     endif
 669   endif
 670 endif
 671
 672 _va = get_option('gallium-va')
 673 if _va == 'true'
 674   _va = 'enabled'
 675   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 676 elif _va == 'false'
 677   _va = 'disabled'
 678   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 679 endif
 680 if not system_has_kms_drm
 681   if _va == 'enabled'
 682     error('VA state tracker can only be built on unix-like OSes.')
 683   else
 684     _va = 'disabled'
 685   endif
 686 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 687   if _va == 'enabled'
 688     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 689   else
 690     _va = 'disabled'
 691   endif
 692 endif
 693 with_gallium_va = false
 694 dep_va = null_dep
 695 if _va != 'disabled'
 696   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 697   if dep_va.found()
 698     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 699     with_gallium_va = true
 700   endif
 701 endif
 702
 703 va_drivers_path = get_option('va-libs-path')
 704 if va_drivers_path == ''
 705   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 706 endif
 707
 708 _xa = get_option('gallium-xa')
 709 if _xa == 'true'
 710   _xa = 'enabled'
 711   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 712 elif _xa == 'false'
 713   _xa = 'disabled'
 714   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 715 endif
 716 if not system_has_kms_drm
 717   if _xa == 'enabled'
 718     error('XA state tracker can only be built on unix-like OSes.')
 719   else
 720     _xa = 'disabled'
 721   endif
 722 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 723           or with_gallium_svga)
 724   if _xa == 'enabled'
 725     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 726   else
 727     _xa = 'disabled'
 728   endif
 729 endif
 730 with_gallium_xa = _xa != 'disabled'
 731
 732 d3d_drivers_path = get_option('d3d-drivers-path')
 733 if d3d_drivers_path == ''
 734   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 735 endif
 736
 737 with_gallium_st_nine =  get_option('gallium-nine')
 738 if with_gallium_st_nine
 739   if not with_gallium_softpipe
 740     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 741   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 742             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 743             or with_gallium_iris)
 744     error('The nine state tracker requires at least one non-swrast gallium driver.')
 745   endif
 746   if not with_dri3
 747     error('Using nine with wine requires dri3')
 748   endif
 749 endif
 750 _power8 = get_option('power8')
 751 if _power8 == 'true'
 752   _power8 = 'enabled'
 753   warning('power8 option "true" deprecated, please use "enabled" instead.')
 754 elif _power8 == 'disabled'
 755   _power8 = 'disabled'
 756   warning('power8 option "false" deprecated, please use "disabled" instead.')
 757 endif
 758 if _power8 != 'disabled'
 759   # on old versions of meson the cpu family would return as ppc64le on little
 760   # endian power8, this was changed in 0.48 such that the family would always
 761   # be ppc64 regardless of endianness, and then the machine.endian() value
 762   # should be checked. Since we support versions < 0.48 we need to use
 763   # startswith.
 764   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 765     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 766       error('Altivec is not supported with gcc version < 4.8.')
 767     endif
 768     if cc.compiles('''
 769         #include <altivec.h>
 770         int main() {
 771           vector unsigned char r;
 772           vector unsigned int v = vec_splat_u32 (1);
 773           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 774           return 0;
 775         }''',
 776         args : '-mpower8-vector',
 777         name : 'POWER8 intrinsics')
 778       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 779     elif get_option('power8') == 'enabled'
 780       error('POWER8 intrinsic support required but not found.')
 781     endif
 782   endif
 783 endif
 784
 785 _opencl = get_option('gallium-opencl')
 786 clover_cpp_std = []
 787 if _opencl != 'disabled'
 788   if not with_gallium
 789     error('OpenCL Clover implementation requires at least one gallium driver.')
 790   endif
 791
 792   dep_clc = dependency('libclc')
 793   with_gallium_opencl = true
 794   with_opencl_icd = _opencl == 'icd'
 795
 796   with_opencl_spirv = get_option('opencl-spirv')
 797   if with_opencl_spirv
 798     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 799     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 800     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 801   else
 802     dep_spirv_tools = null_dep
 803     dep_llvmspirvlib = null_dep
 804   endif
 805
 806   if host_machine.cpu_family().startswith('ppc') and cpp.compiles('''
 807       #if !defined(__VEC__) || !defined(__ALTIVEC__)
 808       #error "AltiVec not enabled"
 809       #endif''',
 810       name : 'Altivec')
 811     clover_cpp_std += ['cpp_std=gnu++11']
 812   endif
 813 else
 814   dep_clc = null_dep
 815   dep_spirv_tools = null_dep
 816   dep_llvmspirvlib = null_dep
 817   with_gallium_opencl = false
 818   with_opencl_icd = false
 819   with_opencl_spirv = false
 820 endif
 821
 822 gl_pkgconfig_c_flags = []
 823 if with_platform_x11
 824   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 825     pre_args += '-DHAVE_X11_PLATFORM'
 826   endif
 827   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 828     pre_args += '-DUSE_XSHM'
 829   else
 830     pre_args += '-DGLX_INDIRECT_RENDERING'
 831     if with_glx_direct
 832       pre_args += '-DGLX_DIRECT_RENDERING'
 833     endif
 834     if with_dri_platform == 'drm'
 835       pre_args += '-DGLX_USE_DRM'
 836     elif with_dri_platform == 'apple'
 837       pre_args += '-DGLX_USE_APPLEGL'
 838     elif with_dri_platform == 'windows'
 839       pre_args += '-DGLX_USE_WINDOWSGL'
 840     endif
 841   endif
 842 else
 843   pre_args += '-DEGL_NO_X11'
 844   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 845 endif
 846 if with_platform_drm
 847   if with_egl and not with_gbm
 848     error('EGL drm platform requires gbm')
 849   endif
 850   pre_args += '-DHAVE_DRM_PLATFORM'
 851 endif
 852 if with_platform_surfaceless
 853   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 854 endif
 855 if with_platform_android
 856   dep_android = [
 857     dependency('cutils'),
 858     dependency('hardware'),
 859     dependency('sync'),
 860   ]
 861   if with_gallium
 862     dep_android += dependency('backtrace')
 863   endif
 864   if get_option('platform-sdk-version') >= 26
 865     dep_android += dependency('nativewindow')
 866   endif
 867   pre_args += '-DHAVE_ANDROID_PLATFORM'
 868 endif
 869 if with_platform_haiku
 870   pre_args += '-DHAVE_HAIKU_PLATFORM'
 871 endif
 872
 873 prog_python = import('python').find_installation('python3')
 874 has_mako = run_command(
 875   prog_python, '-c',
 876   '''
 877 from distutils.version import StrictVersion
 878 import mako
 879 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 880   ''')
 881 if has_mako.returncode() != 0
 882   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 883 endif
 884
 885 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 886   error('When using GCC, version 4.4.6 or later is required.')
 887 endif
 888
 889 # Support systems without ETIME (e.g. FreeBSD)
 890 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 891   pre_args += '-DETIME=ETIMEDOUT'
 892 endif
 893
 894 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 895 if get_option('buildtype') == 'debug'
 896   pre_args += '-DDEBUG'
 897 endif
 898
 899 with_shader_cache = false
 900 _shader_cache = get_option('shader-cache')
 901 if _shader_cache == 'true'
 902   _shader_cache = 'enabled'
 903   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 904 elif _shader_cache == 'false'
 905   _shader_cache = 'disabled'
 906   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 907 endif
 908 if _shader_cache != 'disabled'
 909   if host_machine.system() == 'windows'
 910     if _shader_cache == 'enabled'
 911       error('Shader Cache does not currently work on Windows')
 912     endif
 913   else
 914     pre_args += '-DENABLE_SHADER_CACHE'
 915     with_shader_cache = true
 916   endif
 917 endif
 918 if with_amd_vk and not with_shader_cache
 919   error('Radv requires shader cache support')
 920 endif
 921
 922 # Check for GCC style builtins
 923 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 924              'ffsll', 'popcount', 'popcountll', 'unreachable']
 925   if cc.has_function(b)
 926     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 927   endif
 928 endforeach
 929
 930 # check for GCC __attribute__
 931 _attributes = [
 932   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 933   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 934 ]
 935 foreach a : cc.get_supported_function_attributes(_attributes)
 936   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 937 endforeach
 938 if cc.has_function_attribute('visibility:hidden')
 939   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 940 endif
 941 if cc.compiles('__uint128_t foo(void) { return 0; }',
 942                name : '__uint128_t')
 943   pre_args += '-DHAVE_UINT128'
 944 endif
 945
 946 # TODO: this is very incomplete
 947 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 948   pre_args += '-D_GNU_SOURCE'
 949 elif host_machine.system() == 'sunos'
 950   pre_args += '-D__EXTENSIONS__'
 951 elif host_machine.system() == 'windows'
 952   pre_args += [
 953     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 954     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 955     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 956   ]
 957   if cc.get_id() == 'msvc'
 958     pre_args += [
 959       '-DVC_EXTRALEAN',
 960       '-D_CRT_SECURE_NO_WARNINGS',
 961       '-D_CRT_SECURE_NO_DEPRECATE',
 962       '-D_SCL_SECURE_NO_WARNINGS',
 963       '-D_SCL_SECURE_NO_DEPRECATE',
 964       '-D_ALLOW_KEYWORD_MACROS',
 965       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 966     ]
 967   else
 968     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 969   endif
 970 endif
 971
 972 # Check for generic C arguments
 973 c_args = []
 974 c_msvc_compat_args = []
 975 no_override_init_args = []
 976 cpp_args = []
 977 cpp_msvc_compat_args = []
 978 if cc.get_id() == 'msvc'
 979   foreach a : ['/wd4018',  # signed/unsigned mismatch
 980                '/wd4056',  # overflow in floating-point constant arithmetic
 981                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 982                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 983                '/wd4305',  # trancation from 'type1' to 'type2'
 984                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 985                '/wd4756',  # overflow in constant arithmetic
 986                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 987                '/wd4996',  # disabled deprecated POSIX name warnings
 988                '/wd4291',  # no matching operator delete found
 989                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 990                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 991                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 992               ]
 993     if cc.has_argument(a)
 994       c_args += a
 995     endif
 996     if cpp.has_argument(a)
 997       cpp_args += a
 998     endif
 999   endforeach
1000   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
1001     c_args += '-Wno-microsoft-enum-value'
1002     cpp_args += '-Wno-microsoft-enum-value'
1003   endif
1004 else
1005   _trial = [
1006     '-Werror=implicit-function-declaration',
1007     '-Werror=missing-prototypes',
1008     '-Werror=return-type',
1009     '-Werror=empty-body',
1010     '-Werror=incompatible-pointer-types',
1011     '-Werror=int-conversion',
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 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1212   if cc.check_header(h)
1213     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1214   endif
1215 endforeach
1216
1217 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1218   if cc.has_function(f)
1219     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1220   endif
1221 endforeach
1222
1223 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1224                         args : '-D_GNU_SOURCE')
1225    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1226 elif with_tools.contains('intel')
1227   error('Intel tools require the program_invocation_name variable')
1228 endif
1229
1230 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1231 # This means that this check will succeed, but then compilation will later
1232 # fail. MSVC doesn't have this function at all, so only check for it on
1233 # non-windows platforms.
1234 if host_machine.system() != 'windows'
1235   if cc.has_function('posix_memalign')
1236     pre_args += '-DHAVE_POSIX_MEMALIGN'
1237   endif
1238 endif
1239
1240 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1241    #include <dirent.h>''')
1242    pre_args += '-DHAVE_DIRENT_D_TYPE'
1243 endif
1244
1245 # strtod locale support
1246 if cc.links('''
1247     #define _GNU_SOURCE
1248     #include <stdlib.h>
1249     #include <locale.h>
1250     #ifdef HAVE_XLOCALE_H
1251     #include <xlocale.h>
1252     #endif
1253     int main() {
1254       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1255       const char *s = "1.0";
1256       char *end;
1257       double d = strtod_l(s, end, loc);
1258       float f = strtof_l(s, end, loc);
1259       freelocale(loc);
1260       return 0;
1261     }''',
1262     args : pre_args,
1263     name : 'strtod has locale support')
1264   pre_args += '-DHAVE_STRTOD_L'
1265 endif
1266
1267 # Check for some linker flags
1268 ld_args_bsymbolic = []
1269 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1270   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1271 endif
1272 ld_args_gc_sections = []
1273 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1274             args : '-Wl,--gc-sections', name : 'gc-sections')
1275   ld_args_gc_sections += '-Wl,--gc-sections'
1276 endif
1277 with_ld_version_script = false
1278 if cc.links('int main() { return 0; }',
1279             args : '-Wl,--version-script=@0@'.format(
1280               join_paths(meson.source_root(), 'build-support/conftest.map')),
1281             name : 'version-script')
1282   with_ld_version_script = true
1283 endif
1284 with_ld_dynamic_list = false
1285 if cc.links('int main() { return 0; }',
1286             args : '-Wl,--dynamic-list=@0@'.format(
1287               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1288             name : 'dynamic-list')
1289   with_ld_dynamic_list = true
1290 endif
1291
1292 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1293
1294 # check for dl support
1295 dep_dl = null_dep
1296 if not cc.has_function('dlopen')
1297   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1298 endif
1299 if cc.has_function('dladdr', dependencies : dep_dl)
1300   # This is really only required for megadrivers
1301   pre_args += '-DHAVE_DLADDR'
1302 endif
1303
1304 if cc.has_function('dl_iterate_phdr')
1305   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1306 elif with_intel_vk
1307   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1308 elif with_dri_i965 and with_shader_cache
1309   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1310 endif
1311
1312 # Determine whether or not the rt library is needed for time functions
1313 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1314   dep_clock = null_dep
1315 else
1316   dep_clock = cc.find_library('rt')
1317 endif
1318
1319 # TODO: some of these may be conditional
1320 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1321 pre_args += '-DHAVE_ZLIB'
1322
1323 _zstd = get_option('zstd')
1324 if _zstd == 'true'
1325   _zstd = 'enabled'
1326   warning('zstd option "true" deprecated, please use "enabled" instead.')
1327 elif _zstd == 'false'
1328   _zstd = 'disabled'
1329   warning('zstd option "false" deprecated, please use "disabled" instead.')
1330 endif
1331 if _zstd != 'disabled'
1332   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1333   if dep_zstd.found()
1334     pre_args += '-DHAVE_ZSTD'
1335   endif
1336 else
1337   dep_zstd = null_dep
1338 endif
1339
1340 dep_thread = dependency('threads')
1341 if dep_thread.found() and host_machine.system() != 'windows'
1342   pre_args += '-DHAVE_PTHREAD'
1343   if cc.has_function(
1344       'pthread_setaffinity_np',
1345       dependencies : dep_thread,
1346       prefix : '#include <pthread.h>',
1347       args : '-D_GNU_SOURCE')
1348     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1349   endif
1350   if cc.has_function(
1351       'pthread_setaffinity_np',
1352       dependencies : dep_thread,
1353       prefix : '#include <pthread_np.h>')
1354     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1355   endif
1356 endif
1357 if host_machine.system() != 'windows'
1358   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1359 else
1360   dep_expat = null_dep
1361 endif
1362 # this only exists on linux so either this is linux and it will be found, or
1363 # it's not linux and wont
1364 dep_m = cc.find_library('m', required : false)
1365
1366 # Check for libdrm. Various drivers have different libdrm version requirements,
1367 # but we always want to use the same version for all libdrm modules. That means
1368 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1369 # bar are both on use 2.4.3 for both of them
1370 dep_libdrm_amdgpu = null_dep
1371 dep_libdrm_radeon = null_dep
1372 dep_libdrm_nouveau = null_dep
1373 dep_libdrm_intel = null_dep
1374
1375 _drm_amdgpu_ver = '2.4.100'
1376 _drm_radeon_ver = '2.4.71'
1377 _drm_nouveau_ver = '2.4.66'
1378 _drm_intel_ver = '2.4.75'
1379 _drm_ver = '2.4.81'
1380
1381 _libdrm_checks = [
1382   ['intel', with_dri_i915 or with_gallium_i915],
1383   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1384   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1385               with_gallium_r300 or with_gallium_r600)],
1386   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1387 ]
1388
1389 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1390 # library.
1391 if with_gallium_vc4
1392   _drm_ver = '2.4.89'
1393 endif
1394
1395 # etnaviv only needs core libdrm
1396 if with_gallium_etnaviv
1397   _drm_ver = '2.4.89'
1398 endif
1399
1400 # Loop over the enables versions and get the highest libdrm requirement for all
1401 # active drivers.
1402 _drm_blame = ''
1403 foreach d : _libdrm_checks
1404   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1405   if d[1] and ver.version_compare('>' + _drm_ver)
1406     _drm_ver = ver
1407     _drm_blame = d[0]
1408   endif
1409 endforeach
1410 if _drm_blame != ''
1411   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1412 endif
1413
1414 # Then get each libdrm module
1415 foreach d : _libdrm_checks
1416   if d[1]
1417     set_variable(
1418       'dep_libdrm_' + d[0],
1419       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1420     )
1421   endif
1422 endforeach
1423
1424 with_gallium_drisw_kms = false
1425 dep_libdrm = dependency(
1426   'libdrm', version : '>=' + _drm_ver,
1427   # GNU/Hurd includes egl_dri2, without drm.
1428   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1429 )
1430 if dep_libdrm.found()
1431   pre_args += '-DHAVE_LIBDRM'
1432   if with_dri_platform == 'drm' and with_dri
1433     with_gallium_drisw_kms = true
1434   endif
1435 endif
1436
1437 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1438 llvm_optional_modules = ['coroutines']
1439 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1440   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1441   if with_gallium_r600
1442     llvm_modules += 'asmparser'
1443   endif
1444 endif
1445 if with_gallium_opencl
1446   llvm_modules += [
1447     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1448     'lto', 'option', 'objcarcopts', 'profiledata',
1449   ]
1450 endif
1451
1452 if with_amd_vk or with_gallium_radeonsi
1453   _llvm_version = '>= 8.0.0'
1454 elif with_gallium_swr
1455   _llvm_version = '>= 6.0.0'
1456 else
1457   _llvm_version = '>= 3.9.0'
1458 endif
1459
1460 _shared_llvm = get_option('shared-llvm')
1461 if _shared_llvm == 'true'
1462   _shared_llvm = 'enabled'
1463   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1464 elif _shared_llvm == 'false'
1465   _shared_llvm = 'disabled'
1466   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1467 endif
1468 if _shared_llvm == 'auto'
1469   _shared_llvm = (host_machine.system() != 'windows')
1470 else
1471   _shared_llvm = (_shared_llvm == 'enabled')
1472 endif
1473 _llvm = get_option('llvm')
1474 if _llvm == 'true'
1475   _llvm = 'enabled'
1476   warning('llvm option "true" deprecated, please use "enabled" instead.')
1477 elif _llvm == 'false'
1478   _llvm = 'disabled'
1479   warning('llvm option "false" deprecated, please use "disabled" instead.')
1480 endif
1481
1482 # the cmake method can only link statically, so don't attempt to use it if we
1483 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1484 # linking is requested, so we need to force the config-tool method to be used
1485 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1486 # linking is requested.
1487 _llvm_method = 'auto'
1488 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1489   _llvm_method = 'config-tool'
1490 endif
1491
1492 dep_llvm = null_dep
1493 with_llvm = false
1494 if _llvm != 'disabled'
1495   dep_llvm = dependency(
1496     'llvm',
1497     version : _llvm_version,
1498     modules : llvm_modules,
1499     optional_modules : llvm_optional_modules,
1500     required : (
1501       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1502       with_gallium_opencl or _llvm == 'enabled'
1503     ),
1504     static : not _shared_llvm,
1505     method : _llvm_method,
1506     fallback : ['llvm', 'dep_llvm'],
1507   )
1508   with_llvm = dep_llvm.found()
1509 endif
1510 if with_llvm
1511   pre_args += '-DLLVM_AVAILABLE'
1512   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1513
1514   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1515   # programs, so we need to build all C++ code in mesa without rtti as well to
1516   # ensure that linking works.
1517   #
1518   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1519   # builtin llvm-config based finder. A new generic variable getter method
1520   # has also been added, so we'll use that if we can, to cover the cmake case.
1521   if dep_llvm.type_name() == 'internal'
1522     _rtti = subproject('llvm').get_variable('has_rtti', true)
1523   else
1524     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1525     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1526   endif
1527   if not _rtti
1528     if with_gallium_nouveau
1529       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1530     elif with_gallium_opencl
1531       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1532     endif
1533     if cc.get_id() == 'msvc'
1534       cpp_args += '/GR-'
1535     else
1536       cpp_args += '-fno-rtti'
1537     endif
1538   endif
1539 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1540   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1541 elif with_gallium_opencl
1542   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1543 endif
1544
1545 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1546     (with_gallium_r600 and with_llvm))
1547   dep_elf = dependency('libelf', required : false)
1548   if not dep_elf.found()
1549     dep_elf = cc.find_library('elf')
1550   endif
1551 else
1552   dep_elf = null_dep
1553 endif
1554
1555 dep_glvnd = null_dep
1556 if with_glvnd
1557   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1558   pre_args += '-DUSE_LIBGLVND=1'
1559 endif
1560
1561 _valgrind = get_option('valgrind')
1562 if _valgrind == 'true'
1563   _valgrind = 'enabled'
1564   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1565 elif _valgrind == 'false'
1566   _valgrind = 'disabled'
1567   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1568 endif
1569 if _valgrind != 'disabled'
1570   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1571   if dep_valgrind.found()
1572     pre_args += '-DHAVE_VALGRIND'
1573   endif
1574 else
1575   dep_valgrind = null_dep
1576 endif
1577
1578 # pthread stubs. Lets not and say we didn't
1579
1580 if host_machine.system() == 'windows'
1581   # Prefer the winflexbison versions, they're much easier to install and have
1582   # better windows support.
1583
1584   prog_flex = find_program('win_flex', required : false)
1585   if prog_flex.found()
1586     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1587     # _fileno functions)
1588     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1589   else
1590     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1591   endif
1592   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1593   # __STDC__ macro to determine whether it's safe to use const keyword, but
1594   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1595   prog_flex += '-DYY_USE_CONST='
1596
1597   prog_bison = find_program('win_bison', required : false)
1598   if not prog_bison.found()
1599     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1600   endif
1601 else
1602   prog_bison = find_program('bison', required : with_any_opengl)
1603
1604   # Disable deprecated keyword warnings, since we have to use them for
1605   # old-bison compat.  See discussion in
1606   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1607   if find_program('bison', required : false, version : '> 2.3').found()
1608     prog_bison = [prog_bison, '-Wno-deprecated']
1609   endif
1610
1611   prog_flex = find_program('flex', required : with_any_opengl)
1612 endif
1613
1614 dep_selinux = null_dep
1615 if get_option('selinux')
1616   dep_selinux = dependency('libselinux')
1617   pre_args += '-DMESA_SELINUX'
1618 endif
1619
1620 _libunwind = get_option('libunwind')
1621 if _libunwind == 'true'
1622   _libunwind = 'enabled'
1623   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1624 elif _libunwind == 'false'
1625   _libunwind = 'disabled'
1626   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1627 endif
1628 if _libunwind != 'disabled'
1629   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1630   if dep_unwind.found()
1631     pre_args += '-DHAVE_LIBUNWIND'
1632   endif
1633 else
1634   dep_unwind = null_dep
1635 endif
1636
1637 if with_osmesa != 'none'
1638   if with_osmesa == 'gallium' and not with_gallium_softpipe
1639     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1640   endif
1641   if host_machine.system() == 'windows'
1642     osmesa_lib_name = 'osmesa'
1643   else
1644     osmesa_lib_name = 'OSMesa'
1645   endif
1646   osmesa_bits = get_option('osmesa-bits')
1647   if osmesa_bits != '8'
1648     if with_dri or with_glx != 'disabled'
1649       error('OSMesa bits must be 8 if building glx or dir based drivers')
1650     endif
1651     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1652     pre_args += [
1653       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1654     ]
1655   endif
1656 endif
1657
1658 # TODO: symbol mangling
1659
1660 if with_platform_wayland
1661   dep_wl_scanner = dependency('wayland-scanner', native: true)
1662   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1663   if dep_wl_scanner.version().version_compare('>= 1.15')
1664     wl_scanner_arg = 'private-code'
1665   else
1666     wl_scanner_arg = 'code'
1667   endif
1668   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1669   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1670   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1671   if with_egl
1672     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1673     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1674   endif
1675   wayland_dmabuf_xml = join_paths(
1676     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1677     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1678   )
1679   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1680 endif
1681
1682 dep_x11 = null_dep
1683 dep_xext = null_dep
1684 dep_xdamage = null_dep
1685 dep_xfixes = null_dep
1686 dep_x11_xcb = null_dep
1687 dep_xcb = null_dep
1688 dep_xcb_glx = null_dep
1689 dep_xcb_dri2 = null_dep
1690 dep_xcb_dri3 = null_dep
1691 dep_dri2proto = null_dep
1692 dep_glproto = null_dep
1693 dep_xxf86vm = null_dep
1694 dep_xcb_dri3 = null_dep
1695 dep_xcb_present = null_dep
1696 dep_xcb_sync = null_dep
1697 dep_xcb_xfixes = null_dep
1698 dep_xshmfence = null_dep
1699 dep_xcb_xrandr = null_dep
1700 dep_xlib_xrandr = null_dep
1701 if with_platform_x11
1702   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1703     dep_x11 = dependency('x11')
1704     dep_xext = dependency('xext')
1705     dep_xcb = dependency('xcb')
1706   elif with_glx == 'dri'
1707     dep_x11 = dependency('x11')
1708     dep_xext = dependency('xext')
1709     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1710     dep_xfixes = dependency('xfixes')
1711     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1712   endif
1713   if (with_any_vk or with_glx == 'dri' or with_egl or
1714        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1715         with_gallium_omx != 'disabled'))
1716     dep_xcb = dependency('xcb')
1717     dep_x11_xcb = dependency('x11-xcb')
1718     if with_dri_platform == 'drm' and not dep_libdrm.found()
1719       error('libdrm required for gallium video statetrackers when using x11')
1720     endif
1721   endif
1722   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1723     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1724
1725     if with_dri3
1726       pre_args += '-DHAVE_DRI3'
1727       dep_xcb_dri3 = dependency('xcb-dri3')
1728       dep_xcb_present = dependency('xcb-present')
1729       # until xcb-dri3 has been around long enough to make a hard-dependency:
1730       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1731           dep_xcb_present.version().version_compare('>= 1.13'))
1732         pre_args += '-DHAVE_DRI3_MODIFIERS'
1733       endif
1734       dep_xcb_sync = dependency('xcb-sync')
1735       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1736     endif
1737   endif
1738   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1739     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1740   endif
1741   if with_glx == 'dri'
1742     if with_dri_platform == 'drm'
1743       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1744       dep_xxf86vm = dependency('xxf86vm')
1745     endif
1746   endif
1747   if (with_egl or (
1748       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1749       with_gallium_omx != 'disabled'))
1750     dep_xcb_xfixes = dependency('xcb-xfixes')
1751   endif
1752   if with_xlib_lease
1753     dep_xcb_xrandr = dependency('xcb-randr')
1754     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1755   endif
1756 endif
1757
1758 if get_option('gallium-extra-hud')
1759   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1760 endif
1761
1762 _sensors = get_option('lmsensors')
1763 if _sensors == 'true'
1764   _sensors = 'enabled'
1765   warning('sensors option "true" deprecated, please use "enabled" instead.')
1766 elif _sensors == 'false'
1767   _sensors = 'disabled'
1768   warning('sensors option "false" deprecated, please use "disabled" instead.')
1769 endif
1770 if _sensors != 'disabled'
1771   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1772   if dep_lmsensors.found()
1773     pre_args += '-DHAVE_LIBSENSORS=1'
1774   endif
1775 else
1776   dep_lmsensors = null_dep
1777 endif
1778
1779 foreach a : pre_args
1780   add_project_arguments(a, language : ['c', 'cpp'])
1781 endforeach
1782 foreach a : c_args
1783   add_project_arguments(a, language : ['c'])
1784 endforeach
1785 foreach a : cpp_args
1786   add_project_arguments(a, language : ['cpp'])
1787 endforeach
1788
1789 gl_priv_reqs = []
1790
1791 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1792   gl_priv_reqs += ['x11', 'xext', 'xcb']
1793 elif with_glx == 'dri'
1794   gl_priv_reqs += [
1795     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1796     'xcb-glx >= 1.8.1']
1797   if with_dri_platform == 'drm'
1798     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1799     gl_priv_reqs += 'xxf86vm'
1800   endif
1801 endif
1802 if dep_libdrm.found()
1803   gl_priv_reqs += 'libdrm >= 2.4.75'
1804 endif
1805
1806 gl_priv_libs = []
1807 if dep_thread.found()
1808   gl_priv_libs += ['-lpthread', '-pthread']
1809 endif
1810 if dep_m.found()
1811   gl_priv_libs += '-lm'
1812 endif
1813 if dep_dl.found()
1814   gl_priv_libs += '-ldl'
1815 endif
1816
1817 pkg = import('pkgconfig')
1818
1819 if host_machine.system() == 'windows'
1820   prog_dumpbin = find_program('dumpbin', required : false)
1821   with_symbols_check = prog_dumpbin.found() and with_tests
1822   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1823 else
1824   prog_nm = find_program('nm')
1825   with_symbols_check = with_tests
1826   symbols_check_args = ['--nm', prog_nm.path()]
1827 endif
1828
1829 # This quirk needs to be applied to sources with functions defined in assembly
1830 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1831 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1832
1833 subdir('include')
1834 subdir('bin')
1835 subdir('src')
1836
1837 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1838 # formatting below unless the first argument is passed as a variable. This has
1839 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1840 # for backwards compatibility.
1841 _with_opengl_string = with_opengl ? 'yes' : 'no'
1842
1843 lines = ['',
1844   'prefix:          ' + get_option('prefix'),
1845   'libdir:          ' + get_option('libdir'),
1846   'includedir:      ' + get_option('includedir'),
1847   '',
1848   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1849                                                     with_gles1 ? 'yes' : 'no',
1850                                                     with_gles2 ? 'yes' : 'no'),
1851 ]
1852
1853 if with_osmesa != 'none'
1854   lines += ''
1855   suffix = ''
1856   if with_osmesa == 'gallium'
1857     suffix = '(Gallium)'
1858   endif
1859   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1860 else
1861   lines += 'OSMesa:          no'
1862 endif
1863
1864 if with_dri
1865   lines += ''
1866   lines += 'DRI platform:    ' + with_dri_platform
1867   if dri_drivers.length() != 0 and dri_drivers != ['']
1868     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1869   else
1870     lines += 'DRI drivers:     no'
1871   endif
1872   lines += 'DRI driver dir:  ' + dri_drivers_path
1873 endif
1874
1875 if with_glx != 'disabled'
1876   lines += ''
1877   if with_glx == 'dri'
1878     lines += 'GLX:             DRI-based'
1879   elif with_glx == 'xlib'
1880     lines += 'GLX:             Xlib-based'
1881   elif with_glx == 'gallium-xlib'
1882     lines += 'GLX:             Xlib-based (Gallium)'
1883   else
1884     lines += 'GLX:             ' + with_glx
1885   endif
1886 endif
1887
1888 lines += ''
1889 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1890 if with_egl
1891   egl_drivers = []
1892   if with_dri
1893     egl_drivers += 'builtin:egl_dri2'
1894   endif
1895   if with_dri3
1896     egl_drivers += 'builtin:egl_dri3'
1897   endif
1898   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1899 endif
1900 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1901 if with_platforms
1902   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1903 endif
1904
1905 lines += ''
1906 if with_any_vk
1907   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1908   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1909 else
1910   lines += 'Vulkan drivers:  no'
1911 endif
1912
1913 lines += ''
1914 if with_llvm
1915   lines += 'llvm:            yes'
1916   lines += 'llvm-version:    ' + dep_llvm.version()
1917 else
1918   lines += 'llvm:            no'
1919 endif
1920
1921 lines += ''
1922 if with_gallium
1923   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1924   gallium_st = ['mesa']
1925   if with_gallium_xa
1926     gallium_st += 'xa'
1927   endif
1928   if with_gallium_xvmc
1929     gallium_st += 'xvmc'
1930   endif
1931   if with_gallium_xvmc
1932     gallium_st += 'xvmc'
1933   endif
1934   if with_gallium_vdpau
1935     gallium_st += 'vdpau'
1936   endif
1937   if with_gallium_omx != 'disabled'
1938     gallium_st += 'omx' + with_gallium_omx
1939   endif
1940   if with_gallium_va
1941     gallium_st += 'va'
1942   endif
1943   if with_gallium_st_nine
1944     gallium_st += 'nine'
1945   endif
1946   if with_gallium_opencl
1947     gallium_st += 'clover'
1948   endif
1949   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1950 else
1951   lines += 'Gallium:         no'
1952 endif
1953
1954 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1955
1956 lines += ''
1957 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1958
1959
1960 indent = '        '
1961 summary = indent + ('\n' + indent).join(lines)
1962 message('Configuration summary:\n@0@\n'.format(summary))