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
 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
 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
 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 if _platforms.length() != 0
 318   egl_native_platform = _platforms[0]
 319 endif
 320
 321 _xlib_lease = get_option('xlib-lease')
 322 if _xlib_lease == 'true'
 323   _xlib_lease = 'enabled'
 324   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 325 elif _xlib_lease == 'false'
 326   _xlib_lease = 'disabled'
 327   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 328 endif
 329 if _xlib_lease == 'auto'
 330   with_xlib_lease = with_platform_x11 and with_platform_drm
 331 else
 332   with_xlib_lease = _xlib_lease == 'enabled'
 333 endif
 334
 335 with_glx = get_option('glx')
 336 if with_glx == 'auto'
 337   if with_dri
 338     with_glx = 'dri'
 339   elif with_platform_haiku
 340     with_glx = 'disabled'
 341   elif host_machine.system() == 'windows'
 342     with_glx = 'disabled'
 343   elif with_gallium
 344     # Even when building just gallium drivers the user probably wants dri
 345     with_glx = 'dri'
 346   elif with_platform_x11 and with_any_opengl and not with_any_vk
 347     # The automatic behavior should not be to turn on xlib based glx when
 348     # building only vulkan drivers
 349     with_glx = 'xlib'
 350   else
 351     with_glx = 'disabled'
 352   endif
 353 endif
 354 if with_glx == 'dri'
 355    if with_gallium
 356       with_dri = true
 357    endif
 358 endif
 359
 360 if not (with_dri or with_gallium or with_glx != 'disabled')
 361   with_gles1 = false
 362   with_gles2 = false
 363   with_opengl = false
 364   with_any_opengl = false
 365   with_shared_glapi = false
 366 endif
 367
 368 _gbm = get_option('gbm')
 369 if _gbm == 'true'
 370   _gbm = 'enabled'
 371   warning('gbm option "true" deprecated, please use "enabled" instead.')
 372 elif _gbm == 'false'
 373   _gbm = 'disabled'
 374   warning('gbm option "false" deprecated, please use "disabled" instead.')
 375 endif
 376 if _gbm == 'auto'
 377   with_gbm = system_has_kms_drm and with_dri
 378 else
 379   with_gbm = _gbm == 'enabled'
 380 endif
 381 if with_gbm and not system_has_kms_drm
 382   error('GBM only supports DRM/KMS platforms')
 383 endif
 384
 385 _egl = get_option('egl')
 386 if _egl == 'true'
 387   _egl = 'enabled'
 388   warning('egl option "true" deprecated, please use "enabled" instead.')
 389 elif _egl == 'false'
 390   _egl = 'disabled'
 391   warning('egl option "false" deprecated, please use "disabled" instead.')
 392 endif
 393 if _egl == 'auto'
 394   with_egl = (
 395     not ['darwin', 'windows'].contains(host_machine.system()) and
 396     with_dri and with_shared_glapi and _platforms.length() != 0
 397   )
 398 elif _egl == 'enabled'
 399   if not with_dri
 400     error('EGL requires dri')
 401   elif not with_shared_glapi
 402     error('EGL requires shared-glapi')
 403   elif _platforms.length() == 0
 404     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
 405   elif not ['disabled', 'dri'].contains(with_glx)
 406     error('EGL requires dri, but a GLX is being built without dri')
 407   elif ['darwin', 'windows'].contains(host_machine.system())
 408     error('EGL is not available on Windows or MacOS')
 409   endif
 410   with_egl = true
 411 else
 412   with_egl = false
 413 endif
 414
 415 if with_egl and not (with_platform_drm or with_platform_surfaceless or with_platform_android)
 416   if with_gallium_radeonsi
 417     error('RadeonSI requires the drm, surfaceless or android platform when using EGL')
 418   endif
 419   if with_gallium_virgl
 420     error('Virgl requires the drm, surfaceless or android platform when using EGL')
 421   endif
 422 endif
 423
 424 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 425 if not ['windows', 'freebsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 426   pre_args += '-DUSE_ELF_TLS'
 427 endif
 428
 429 if with_glx != 'disabled'
 430   if not (with_platform_x11 and with_any_opengl)
 431     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 432   elif with_glx == 'gallium-xlib'
 433     if not with_gallium
 434       error('Gallium-xlib based GLX requires at least one gallium driver')
 435     elif not with_gallium_softpipe
 436       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 437     elif with_dri
 438       error('gallium-xlib conflicts with any dri driver')
 439     endif
 440   elif with_glx == 'xlib'
 441     if with_dri
 442       error('xlib conflicts with any dri driver')
 443     endif
 444   elif with_glx == 'dri'
 445     if not with_shared_glapi
 446       error('dri based GLX requires shared-glapi')
 447     endif
 448   endif
 449 endif
 450
 451 with_glvnd = get_option('glvnd')
 452 if with_glvnd
 453   if with_platform_windows
 454     error('glvnd cannot be used on Windows')
 455   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 456     error('Cannot build glvnd support for GLX that is not DRI based.')
 457   elif with_glx == 'disabled' and not with_egl
 458     error('glvnd requires DRI based GLX and/or EGL')
 459   endif
 460   if get_option('egl-lib-suffix') != ''
 461     error('''EGL lib suffix can't be used with libglvnd''')
 462   endif
 463 endif
 464
 465 if with_vulkan_icd_dir == ''
 466   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 467 endif
 468
 469 # GNU/Hurd includes egl_dri2, without drm.
 470 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 471   host_machine.system() == 'gnu')
 472 _dri3 = get_option('dri3')
 473 if _dri3 == 'true'
 474   _dri3 = 'enabled'
 475   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 476 elif _dri3 == 'false'
 477   _dri3 = 'disabled'
 478   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 479 endif
 480 if _dri3 == 'auto'
 481   with_dri3 = system_has_kms_drm and with_dri2
 482 else
 483   with_dri3 = _dri3 == 'enabled'
 484 endif
 485
 486 if with_any_vk and (with_platform_x11 and not with_dri3)
 487   error('Vulkan drivers require dri3 for X11 support')
 488 endif
 489 if with_dri
 490   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 491     error('building dri drivers require at least one windowing system or classic osmesa')
 492   endif
 493 endif
 494
 495 _vdpau = get_option('gallium-vdpau')
 496 if _vdpau == 'true'
 497   _vdpau = 'enabled'
 498   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 499 elif _vdpau == 'false'
 500   _vdpau = 'disabled'
 501   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 502 endif
 503 if not system_has_kms_drm
 504   if _vdpau == 'enabled'
 505     error('VDPAU state tracker can only be build on unix-like OSes.')
 506   else
 507     _vdpau = 'disabled'
 508   endif
 509 elif not with_platform_x11
 510   if _vdpau == 'enabled'
 511     error('VDPAU state tracker requires X11 support.')
 512   else
 513     _vdpau = 'disabled'
 514   endif
 515 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 516           with_gallium_nouveau)
 517   if _vdpau == 'enabled'
 518     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 519   else
 520     _vdpau = 'disabled'
 521   endif
 522 endif
 523 dep_vdpau = null_dep
 524 with_gallium_vdpau = false
 525 if _vdpau != 'disabled'
 526   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 527   if dep_vdpau.found()
 528     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 529     with_gallium_vdpau = true
 530   endif
 531 endif
 532
 533 if with_gallium_vdpau
 534   pre_args += '-DHAVE_ST_VDPAU'
 535 endif
 536 vdpau_drivers_path = get_option('vdpau-libs-path')
 537 if vdpau_drivers_path == ''
 538   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 539 endif
 540
 541 if with_gallium_zink
 542   dep_vulkan = dependency('vulkan')
 543 endif
 544
 545 _xvmc = get_option('gallium-xvmc')
 546 if _xvmc == 'true'
 547   _xvmc = 'enabled'
 548   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 549 elif _xvmc == 'false'
 550   _xvmc = 'disabled'
 551   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 552 endif
 553 if not system_has_kms_drm
 554   if _xvmc == 'enabled'
 555     error('XVMC state tracker can only be build on unix-like OSes.')
 556   else
 557     _xvmc = 'disabled'
 558   endif
 559 elif not with_platform_x11
 560   if _xvmc == 'enabled'
 561     error('XVMC state tracker requires X11 support.')
 562   else
 563     _xvmc = 'disabled'
 564   endif
 565 elif not (with_gallium_r600 or with_gallium_nouveau)
 566   if _xvmc == 'enabled'
 567     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 568   else
 569     _xvmc = 'disabled'
 570   endif
 571 endif
 572 dep_xvmc = null_dep
 573 dep_xv = null_dep
 574 with_gallium_xvmc = false
 575 if _xvmc != 'disabled'
 576   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 577   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 578   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 579 endif
 580
 581 xvmc_drivers_path = get_option('xvmc-libs-path')
 582 if xvmc_drivers_path == ''
 583   xvmc_drivers_path = get_option('libdir')
 584 endif
 585
 586 _omx = get_option('gallium-omx')
 587 if not system_has_kms_drm
 588   if ['auto', 'disabled'].contains(_omx)
 589     _omx = 'disabled'
 590   else
 591     error('OMX state tracker can only be built on unix-like OSes.')
 592   endif
 593 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 594   if ['auto', 'disabled'].contains(_omx)
 595     _omx = 'disabled'
 596   else
 597     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 598   endif
 599 endif
 600 with_gallium_omx = _omx
 601 dep_omx = null_dep
 602 dep_omx_other = []
 603 if ['auto', 'bellagio'].contains(_omx)
 604   dep_omx = dependency(
 605     'libomxil-bellagio', required : _omx == 'bellagio'
 606   )
 607   if dep_omx.found()
 608     with_gallium_omx = 'bellagio'
 609   endif
 610 endif
 611 if ['auto', 'tizonia'].contains(_omx)
 612   if with_dri and with_egl
 613     dep_omx = dependency(
 614       'libtizonia', version : '>= 0.10.0',
 615       required : _omx == 'tizonia',
 616     )
 617     dep_omx_other = [
 618       dependency('libtizplatform', required : _omx == 'tizonia'),
 619       dependency('tizilheaders', required : _omx == 'tizonia'),
 620     ]
 621     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 622       with_gallium_omx = 'tizonia'
 623     endif
 624   elif _omx == 'tizonia'
 625     error('OMX-Tizonia state tracker requires dri and egl')
 626   endif
 627 endif
 628 if _omx == 'auto'
 629   with_gallium_omx = 'disabled'
 630 else
 631   with_gallium_omx = _omx
 632 endif
 633
 634 pre_args += [
 635   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 636   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 637 ]
 638
 639
 640 omx_drivers_path = get_option('omx-libs-path')
 641
 642 if with_gallium_omx != 'disabled'
 643   # Figure out where to put the omx driver.
 644   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 645   # argument to meson's get_pkgconfig_variable method.
 646   if omx_drivers_path == ''
 647     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 648     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 649     if _omx_libdir == get_option('libdir')
 650       omx_drivers_path = _omx_drivers_dir
 651     else
 652       _omx_base_dir = []
 653       # This will fail on windows. Does OMX run on windows?
 654       _omx_libdir = _omx_libdir.split('/')
 655       _omx_drivers_dir = _omx_drivers_dir.split('/')
 656       foreach o : _omx_drivers_dir
 657         if not _omx_libdir.contains(o)
 658           _omx_base_dir += o
 659         endif
 660       endforeach
 661       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 662     endif
 663   endif
 664 endif
 665
 666 _va = get_option('gallium-va')
 667 if _va == 'true'
 668   _va = 'enabled'
 669   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 670 elif _va == 'false'
 671   _va = 'disabled'
 672   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 673 endif
 674 if not system_has_kms_drm
 675   if _va == 'enabled'
 676     error('VA state tracker can only be built on unix-like OSes.')
 677   else
 678     _va = 'disabled'
 679   endif
 680 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 681   if _va == 'enabled'
 682     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 683   else
 684     _va = 'disabled'
 685   endif
 686 endif
 687 with_gallium_va = false
 688 dep_va = null_dep
 689 if _va != 'disabled'
 690   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 691   if dep_va.found()
 692     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 693     with_gallium_va = true
 694   endif
 695 endif
 696
 697 va_drivers_path = get_option('va-libs-path')
 698 if va_drivers_path == ''
 699   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 700 endif
 701
 702 _xa = get_option('gallium-xa')
 703 if _xa == 'true'
 704   _xa = 'enabled'
 705   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 706 elif _xa == 'false'
 707   _xa = 'disabled'
 708   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 709 endif
 710 if not system_has_kms_drm
 711   if _xa == 'enabled'
 712     error('XA state tracker can only be built on unix-like OSes.')
 713   else
 714     _xa = 'disabled'
 715   endif
 716 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 717           or with_gallium_svga)
 718   if _xa == 'enabled'
 719     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 720   else
 721     _xa = 'disabled'
 722   endif
 723 endif
 724 with_gallium_xa = _xa != 'disabled'
 725
 726 d3d_drivers_path = get_option('d3d-drivers-path')
 727 if d3d_drivers_path == ''
 728   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 729 endif
 730
 731 with_gallium_st_nine =  get_option('gallium-nine')
 732 if with_gallium_st_nine
 733   if not with_gallium_softpipe
 734     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 735   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 736             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 737             or with_gallium_iris)
 738     error('The nine state tracker requires at least one non-swrast gallium driver.')
 739   endif
 740   if not with_dri3
 741     error('Using nine with wine requires dri3')
 742   endif
 743 endif
 744 _power8 = get_option('power8')
 745 if _power8 == 'true'
 746   _power8 = 'enabled'
 747   warning('power8 option "true" deprecated, please use "enabled" instead.')
 748 elif _power8 == 'disabled'
 749   _power8 = 'disabled'
 750   warning('power8 option "false" deprecated, please use "disabled" instead.')
 751 endif
 752 if _power8 != 'disabled'
 753   # on old versions of meson the cpu family would return as ppc64le on little
 754   # endian power8, this was changed in 0.48 such that the family would always
 755   # be ppc64 regardless of endianness, and then the machine.endian() value
 756   # should be checked. Since we support versions < 0.48 we need to use
 757   # startswith.
 758   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 759     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 760       error('Altivec is not supported with gcc version < 4.8.')
 761     endif
 762     if cc.compiles('''
 763         #include <altivec.h>
 764         int main() {
 765           vector unsigned char r;
 766           vector unsigned int v = vec_splat_u32 (1);
 767           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 768           return 0;
 769         }''',
 770         args : '-mpower8-vector',
 771         name : 'POWER8 intrinsics')
 772       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 773     elif get_option('power8') == 'enabled'
 774       error('POWER8 intrinsic support required but not found.')
 775     endif
 776   endif
 777 endif
 778
 779 _opencl = get_option('gallium-opencl')
 780 if _opencl != 'disabled'
 781   if not with_gallium
 782     error('OpenCL Clover implementation requires at least one gallium driver.')
 783   endif
 784
 785   dep_clc = dependency('libclc')
 786   with_gallium_opencl = true
 787   with_opencl_icd = _opencl == 'icd'
 788
 789   with_opencl_spirv = get_option('opencl-spirv')
 790   if with_opencl_spirv
 791     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 792     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 793     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 794   else
 795     dep_spirv_tools = null_dep
 796     dep_llvmspirvlib = null_dep
 797   endif
 798 else
 799   dep_clc = null_dep
 800   dep_spirv_tools = null_dep
 801   dep_llvmspirvlib = null_dep
 802   with_gallium_opencl = false
 803   with_opencl_icd = false
 804   with_opencl_spirv = false
 805 endif
 806
 807 gl_pkgconfig_c_flags = []
 808 if with_platform_x11
 809   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 810     pre_args += '-DHAVE_X11_PLATFORM'
 811   endif
 812   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 813     pre_args += '-DUSE_XSHM'
 814   else
 815     pre_args += '-DGLX_INDIRECT_RENDERING'
 816     if with_glx_direct
 817       pre_args += '-DGLX_DIRECT_RENDERING'
 818     endif
 819     if with_dri_platform == 'drm'
 820       pre_args += '-DGLX_USE_DRM'
 821     elif with_dri_platform == 'apple'
 822       pre_args += '-DGLX_USE_APPLEGL'
 823     elif with_dri_platform == 'windows'
 824       pre_args += '-DGLX_USE_WINDOWSGL'
 825     endif
 826   endif
 827 else
 828   pre_args += '-DEGL_NO_X11'
 829   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 830 endif
 831 if with_platform_drm
 832   if with_egl and not with_gbm
 833     error('EGL drm platform requires gbm')
 834   endif
 835   pre_args += '-DHAVE_DRM_PLATFORM'
 836 endif
 837 if with_platform_surfaceless
 838   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 839 endif
 840 if with_platform_android
 841   dep_android = [
 842     dependency('cutils'),
 843     dependency('hardware'),
 844     dependency('sync'),
 845   ]
 846   if with_gallium
 847     dep_android += dependency('backtrace')
 848   endif
 849   if get_option('platform-sdk-version') >= 26
 850     dep_android += dependency('nativewindow')
 851   endif
 852   pre_args += '-DHAVE_ANDROID_PLATFORM'
 853 endif
 854 if with_platform_haiku
 855   pre_args += '-DHAVE_HAIKU_PLATFORM'
 856 endif
 857
 858 prog_python = import('python').find_installation('python3')
 859 has_mako = run_command(
 860   prog_python, '-c',
 861   '''
 862 from distutils.version import StrictVersion
 863 import mako
 864 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 865   ''')
 866 if has_mako.returncode() != 0
 867   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 868 endif
 869
 870 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 871   error('When using GCC, version 4.4.6 or later is required.')
 872 endif
 873
 874 # Support systems without ETIME (e.g. FreeBSD)
 875 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 876   pre_args += '-DETIME=ETIMEDOUT'
 877 endif
 878
 879 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 880 if get_option('buildtype') == 'debug'
 881   pre_args += '-DDEBUG'
 882 endif
 883
 884 with_shader_cache = false
 885 _shader_cache = get_option('shader-cache')
 886 if _shader_cache == 'true'
 887   _shader_cache = 'enabled'
 888   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 889 elif _shader_cache == 'false'
 890   _shader_cache = 'disabled'
 891   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 892 endif
 893 if _shader_cache != 'disabled'
 894   if host_machine.system() == 'windows'
 895     if _shader_cache == 'enabled'
 896       error('Shader Cache does not currently work on Windows')
 897     endif
 898   else
 899     pre_args += '-DENABLE_SHADER_CACHE'
 900     with_shader_cache = true
 901   endif
 902 endif
 903
 904 # Check for GCC style builtins
 905 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 906              'ffsll', 'popcount', 'popcountll', 'unreachable']
 907   if cc.has_function(b)
 908     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 909   endif
 910 endforeach
 911
 912 # check for GCC __attribute__
 913 _attributes = [
 914   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 915   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 916 ]
 917 foreach a : cc.get_supported_function_attributes(_attributes)
 918   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 919 endforeach
 920 if cc.has_function_attribute('visibility:hidden')
 921   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 922 endif
 923 if cc.compiles('__uint128_t foo(void) { return 0; }',
 924                name : '__uint128_t')
 925   pre_args += '-DHAVE_UINT128'
 926 endif
 927
 928 # TODO: this is very incomplete
 929 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 930   pre_args += '-D_GNU_SOURCE'
 931 elif host_machine.system() == 'sunos'
 932   pre_args += '-D__EXTENSIONS__'
 933 elif host_machine.system() == 'windows'
 934   pre_args += [
 935     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 936     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 937     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 938   ]
 939   if cc.get_id() == 'msvc'
 940     pre_args += [
 941       '-DVC_EXTRALEAN',
 942       '-D_CRT_SECURE_NO_WARNINGS',
 943       '-D_CRT_SECURE_NO_DEPRECATE',
 944       '-D_SCL_SECURE_NO_WARNINGS',
 945       '-D_SCL_SECURE_NO_DEPRECATE',
 946       '-D_ALLOW_KEYWORD_MACROS',
 947       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 948     ]
 949   else
 950     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 951   endif
 952 endif
 953
 954 # Check for generic C arguments
 955 c_args = []
 956 c_msvc_compat_args = []
 957 no_override_init_args = []
 958 cpp_args = []
 959 cpp_msvc_compat_args = []
 960 if cc.get_id() == 'msvc'
 961   foreach a : ['/wd4018',  # signed/unsigned mismatch
 962                '/wd4056',  # overflow in floating-point constant arithmetic
 963                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 964                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 965                '/wd4305',  # trancation from 'type1' to 'type2'
 966                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 967                '/wd4756',  # overflow in constant arithmetic
 968                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 969                '/wd4996',  # disabled deprecated POSIX name warnings
 970                '/wd4291',  # no matching operator delete found
 971                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 972                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 973                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 974               ]
 975     if cc.has_argument(a)
 976       c_args += a
 977     endif
 978     if cpp.has_argument(a)
 979       cpp_args += a
 980     endif
 981   endforeach
 982   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 983     c_args += '-Wno-microsoft-enum-value'
 984     cpp_args += '-Wno-microsoft-enum-value'
 985   endif
 986 else
 987   _trial = [
 988     '-Werror=implicit-function-declaration',
 989     '-Werror=missing-prototypes',
 990     '-Werror=return-type',
 991     '-Werror=empty-body',
 992     '-Werror=incompatible-pointer-types',
 993     '-Werror=int-conversion',
 994     '-Wimplicit-fallthrough',
 995     '-Wno-missing-field-initializers',
 996     '-Wno-format-truncation',
 997     '-fno-math-errno',
 998     '-fno-trapping-math',
 999     '-Qunused-arguments',
1000     '-fno-common',
1001   ]
1002   # MinGW chokes on format specifiers and I can't get it all working
1003   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1004     _trial += ['-Werror=format', '-Wformat-security']
1005   endif
1006   foreach a : _trial
1007     if cc.has_argument(a)
1008       c_args += a
1009     endif
1010   endforeach
1011
1012   _trial = [
1013     '-Werror=return-type',
1014     '-Werror=empty-body',
1015     '-Wno-non-virtual-dtor',
1016     '-Wno-missing-field-initializers',
1017     '-Wno-format-truncation',
1018     '-fno-math-errno',
1019     '-fno-trapping-math',
1020     '-Qunused-arguments',
1021     # Some classes use custom new operator which zeroes memory, however
1022     # gcc does aggressive dead-store elimination which threats all writes
1023     # to the memory before the constructor as "dead stores".
1024     # For now we disable this optimization.
1025     '-flifetime-dse=1',
1026   ]
1027   # MinGW chokes on format specifiers and I can't get it all working
1028   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1029     _trial += ['-Werror=format', '-Wformat-security']
1030   endif
1031   foreach a : _trial
1032     if cpp.has_argument(a)
1033       cpp_args += a
1034     endif
1035   endforeach
1036
1037   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1038     if cc.has_argument(a)
1039       no_override_init_args += a
1040     endif
1041   endforeach
1042
1043   # Check for C and C++ arguments for MSVC compatibility. These are only used
1044   # in parts of the mesa code base that need to compile with MSVC, mainly
1045   # common code
1046   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1047     if cc.has_argument(a)
1048       c_msvc_compat_args += a
1049     endif
1050     if cpp.has_argument(a)
1051       cpp_msvc_compat_args += a
1052     endif
1053   endforeach
1054 endif
1055
1056 # set linker arguments
1057 if host_machine.system() == 'windows'
1058   if cc.get_id() == 'msvc'
1059     add_project_link_arguments(
1060       '/fixed:no',
1061       '/dynamicbase',
1062       '/nxcompat',
1063       language : ['c', 'cpp'],
1064     )
1065     if get_option('buildtype') != 'debug'
1066       add_project_link_arguments(
1067         '/incremental:no',
1068         language : ['c', 'cpp'],
1069       )
1070     endif
1071   else
1072     add_project_link_arguments(
1073       '-Wl,--nxcompat',
1074       '-Wl,--dynamicbase',
1075       '-static-libgcc',
1076       '-static-libstdc++',
1077       language : ['c', 'cpp'],
1078     )
1079   endif
1080 endif
1081
1082 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1083   pre_args += '-DUSE_SSE41'
1084   with_sse41 = true
1085   sse41_args = ['-msse4.1']
1086
1087   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1088   # that's not guaranteed
1089   if host_machine.cpu_family() == 'x86'
1090     sse41_args += '-mstackrealign'
1091   endif
1092 else
1093   with_sse41 = false
1094   sse41_args = []
1095 endif
1096
1097 # Check for GCC style atomics
1098 dep_atomic = null_dep
1099
1100 if cc.compiles('''#include <stdint.h>
1101                   int main() {
1102                     struct {
1103                       uint64_t *v;
1104                     } x;
1105                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1106                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1107
1108                   }''',
1109                name : 'GCC atomic builtins')
1110   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1111
1112   # Not all atomic calls can be turned into lock-free instructions, in which
1113   # GCC will make calls into the libatomic library. Check whether we need to
1114   # link with -latomic.
1115   #
1116   # This can happen for 64-bit atomic operations on 32-bit architectures such
1117   # as ARM.
1118   if not cc.links('''#include <stdint.h>
1119                      int main() {
1120                        struct {
1121                          uint64_t *v;
1122                        } x;
1123                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1124                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1125                      }''',
1126                   name : 'GCC atomic builtins required -latomic')
1127     dep_atomic = cc.find_library('atomic')
1128   endif
1129 endif
1130 if not cc.links('''#include <stdint.h>
1131                    uint64_t v;
1132                    int main() {
1133                      return __sync_add_and_fetch(&v, (uint64_t)1);
1134                    }''',
1135                 dependencies : dep_atomic,
1136                 name : 'GCC 64bit atomics')
1137   pre_args += '-DMISSING_64BIT_ATOMICS'
1138 endif
1139
1140 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1141
1142 # TODO: shared/static? Is this even worth doing?
1143
1144 with_asm_arch = ''
1145 if host_machine.cpu_family() == 'x86'
1146   if system_has_kms_drm or host_machine.system() == 'gnu'
1147     with_asm_arch = 'x86'
1148     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1149                  '-DUSE_SSE_ASM']
1150
1151     if with_glx_read_only_text
1152       pre_args += ['-DGLX_X86_READONLY_TEXT']
1153     endif
1154   endif
1155 elif host_machine.cpu_family() == 'x86_64'
1156   if system_has_kms_drm
1157     with_asm_arch = 'x86_64'
1158     pre_args += ['-DUSE_X86_64_ASM']
1159   endif
1160 elif host_machine.cpu_family() == 'arm'
1161   if system_has_kms_drm
1162     with_asm_arch = 'arm'
1163     pre_args += ['-DUSE_ARM_ASM']
1164   endif
1165 elif host_machine.cpu_family() == 'aarch64'
1166   if system_has_kms_drm
1167     with_asm_arch = 'aarch64'
1168     pre_args += ['-DUSE_AARCH64_ASM']
1169   endif
1170 elif host_machine.cpu_family() == 'sparc64'
1171   if system_has_kms_drm
1172     with_asm_arch = 'sparc'
1173     pre_args += ['-DUSE_SPARC_ASM']
1174   endif
1175 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1176   if system_has_kms_drm
1177     with_asm_arch = 'ppc64le'
1178     pre_args += ['-DUSE_PPC64LE_ASM']
1179   endif
1180 endif
1181
1182 # Check for standard headers and functions
1183 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1184   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1185   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1186   pre_args += '-DMAJOR_IN_SYSMACROS'
1187 endif
1188 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1189   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1190   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1191   pre_args += '-DMAJOR_IN_MKDEV'
1192 endif
1193
1194 if not ['linux'].contains(host_machine.system())
1195   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1196   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1197     pre_args += '-DHAVE_SYS_SYSCTL_H'
1198   endif
1199 endif
1200
1201 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1202   if cc.check_header(h)
1203     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1204   endif
1205 endforeach
1206
1207 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1208   if cc.has_function(f)
1209     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1210   endif
1211 endforeach
1212
1213 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1214                         args : '-D_GNU_SOURCE')
1215    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1216 elif with_tools.contains('intel')
1217   error('Intel tools require the program_invocation_name variable')
1218 endif
1219
1220 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1221 # This means that this check will succeed, but then compilation will later
1222 # fail. MSVC doesn't have this function at all, so only check for it on
1223 # non-windows platforms.
1224 if host_machine.system() != 'windows'
1225   if cc.has_function('posix_memalign')
1226     pre_args += '-DHAVE_POSIX_MEMALIGN'
1227   endif
1228 endif
1229
1230 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1231    #include <dirent.h>''')
1232    pre_args += '-DHAVE_DIRENT_D_TYPE'
1233 endif
1234
1235 # strtod locale support
1236 if cc.links('''
1237     #define _GNU_SOURCE
1238     #include <stdlib.h>
1239     #include <locale.h>
1240     #ifdef HAVE_XLOCALE_H
1241     #include <xlocale.h>
1242     #endif
1243     int main() {
1244       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1245       const char *s = "1.0";
1246       char *end;
1247       double d = strtod_l(s, end, loc);
1248       float f = strtof_l(s, end, loc);
1249       freelocale(loc);
1250       return 0;
1251     }''',
1252     args : pre_args,
1253     name : 'strtod has locale support')
1254   pre_args += '-DHAVE_STRTOD_L'
1255 endif
1256
1257 # Check for some linker flags
1258 ld_args_bsymbolic = []
1259 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1260   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1261 endif
1262 ld_args_gc_sections = []
1263 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1264             args : '-Wl,--gc-sections', name : 'gc-sections')
1265   ld_args_gc_sections += '-Wl,--gc-sections'
1266 endif
1267 with_ld_version_script = false
1268 if cc.links('int main() { return 0; }',
1269             args : '-Wl,--version-script=@0@'.format(
1270               join_paths(meson.source_root(), 'build-support/conftest.map')),
1271             name : 'version-script')
1272   with_ld_version_script = true
1273 endif
1274 with_ld_dynamic_list = false
1275 if cc.links('int main() { return 0; }',
1276             args : '-Wl,--dynamic-list=@0@'.format(
1277               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1278             name : 'dynamic-list')
1279   with_ld_dynamic_list = true
1280 endif
1281
1282 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1283
1284 # check for dl support
1285 dep_dl = null_dep
1286 if not cc.has_function('dlopen')
1287   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1288 endif
1289 if cc.has_function('dladdr', dependencies : dep_dl)
1290   # This is really only required for megadrivers
1291   pre_args += '-DHAVE_DLADDR'
1292 endif
1293
1294 if cc.has_function('dl_iterate_phdr')
1295   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1296 elif with_intel_vk
1297   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1298 elif with_dri_i965 and with_shader_cache
1299   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1300 endif
1301
1302 # Determine whether or not the rt library is needed for time functions
1303 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1304   dep_clock = null_dep
1305 else
1306   dep_clock = cc.find_library('rt')
1307 endif
1308
1309 # TODO: some of these may be conditional
1310 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1311 pre_args += '-DHAVE_ZLIB'
1312
1313 _zstd = get_option('zstd')
1314 if _zstd == 'true'
1315   _zstd = 'enabled'
1316   warning('zstd option "true" deprecated, please use "enabled" instead.')
1317 elif _zstd == 'false'
1318   _zstd = 'disabled'
1319   warning('zstd option "false" deprecated, please use "disabled" instead.')
1320 endif
1321 if _zstd != 'disabled'
1322   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1323   if dep_zstd.found()
1324     pre_args += '-DHAVE_ZSTD'
1325   endif
1326 else
1327   dep_zstd = null_dep
1328 endif
1329
1330 dep_thread = dependency('threads')
1331 if dep_thread.found() and host_machine.system() != 'windows'
1332   pre_args += '-DHAVE_PTHREAD'
1333   if cc.has_function(
1334       'pthread_setaffinity_np',
1335       dependencies : dep_thread,
1336       prefix : '#include <pthread.h>',
1337       args : '-D_GNU_SOURCE')
1338     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1339   endif
1340   if cc.has_function(
1341       'pthread_setaffinity_np',
1342       dependencies : dep_thread,
1343       prefix : '#include <pthread_np.h>')
1344     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1345   endif
1346 endif
1347 if host_machine.system() != 'windows'
1348   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1349 else
1350   dep_expat = null_dep
1351 endif
1352 # this only exists on linux so either this is linux and it will be found, or
1353 # it's not linux and wont
1354 dep_m = cc.find_library('m', required : false)
1355
1356 # Check for libdrm. Various drivers have different libdrm version requirements,
1357 # but we always want to use the same version for all libdrm modules. That means
1358 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1359 # bar are both on use 2.4.3 for both of them
1360 dep_libdrm_amdgpu = null_dep
1361 dep_libdrm_radeon = null_dep
1362 dep_libdrm_nouveau = null_dep
1363 dep_libdrm_intel = null_dep
1364
1365 _drm_amdgpu_ver = '2.4.100'
1366 _drm_radeon_ver = '2.4.71'
1367 _drm_nouveau_ver = '2.4.66'
1368 _drm_intel_ver = '2.4.75'
1369 _drm_ver = '2.4.81'
1370
1371 _libdrm_checks = [
1372   ['intel', with_dri_i915 or with_gallium_i915],
1373   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1374   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1375               with_gallium_r300 or with_gallium_r600)],
1376   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1377 ]
1378
1379 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1380 # library.
1381 if with_gallium_vc4
1382   _drm_ver = '2.4.89'
1383 endif
1384
1385 # etnaviv only needs core libdrm
1386 if with_gallium_etnaviv
1387   _drm_ver = '2.4.89'
1388 endif
1389
1390 # Loop over the enables versions and get the highest libdrm requirement for all
1391 # active drivers.
1392 _drm_blame = ''
1393 foreach d : _libdrm_checks
1394   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1395   if d[1] and ver.version_compare('>' + _drm_ver)
1396     _drm_ver = ver
1397     _drm_blame = d[0]
1398   endif
1399 endforeach
1400 if _drm_blame != ''
1401   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1402 endif
1403
1404 # Then get each libdrm module
1405 foreach d : _libdrm_checks
1406   if d[1]
1407     set_variable(
1408       'dep_libdrm_' + d[0],
1409       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1410     )
1411   endif
1412 endforeach
1413
1414 with_gallium_drisw_kms = false
1415 dep_libdrm = dependency(
1416   'libdrm', version : '>=' + _drm_ver,
1417   # GNU/Hurd includes egl_dri2, without drm.
1418   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1419 )
1420 if dep_libdrm.found()
1421   pre_args += '-DHAVE_LIBDRM'
1422   if with_dri_platform == 'drm' and with_dri
1423     with_gallium_drisw_kms = true
1424   endif
1425 endif
1426
1427 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1428 llvm_optional_modules = ['coroutines']
1429 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1430   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1431   if with_gallium_r600
1432     llvm_modules += 'asmparser'
1433   endif
1434 endif
1435 if with_gallium_opencl
1436   llvm_modules += [
1437     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1438     'lto', 'option', 'objcarcopts', 'profiledata',
1439   ]
1440 endif
1441
1442 if with_amd_vk or with_gallium_radeonsi
1443   _llvm_version = '>= 8.0.0'
1444 elif with_gallium_swr
1445   _llvm_version = '>= 6.0.0'
1446 else
1447   _llvm_version = '>= 3.9.0'
1448 endif
1449
1450 _shared_llvm = get_option('shared-llvm')
1451 if _shared_llvm == 'true'
1452   _shared_llvm = 'enabled'
1453   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1454 elif _shared_llvm == 'false'
1455   _shared_llvm = 'disabled'
1456   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1457 endif
1458 if _shared_llvm == 'auto'
1459   _shared_llvm = (host_machine.system() != 'windows')
1460 else
1461   _shared_llvm = (_shared_llvm == 'enabled')
1462 endif
1463 _llvm = get_option('llvm')
1464 if _llvm == 'true'
1465   _llvm = 'enabled'
1466   warning('llvm option "true" deprecated, please use "enabled" instead.')
1467 elif _llvm == 'false'
1468   _llvm = 'disabled'
1469   warning('llvm option "false" deprecated, please use "disabled" instead.')
1470 endif
1471
1472 # the cmake method can only link statically, so don't attempt to use it if we
1473 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1474 # linking is requested, so we need to force the config-tool method to be used
1475 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1476 # linking is requested.
1477 _llvm_method = 'auto'
1478 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1479   _llvm_method = 'config-tool'
1480 endif
1481
1482 dep_llvm = null_dep
1483 with_llvm = false
1484 if _llvm != 'disabled'
1485   dep_llvm = dependency(
1486     'llvm',
1487     version : _llvm_version,
1488     modules : llvm_modules,
1489     optional_modules : llvm_optional_modules,
1490     required : (
1491       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1492       with_gallium_opencl or _llvm == 'enabled'
1493     ),
1494     static : not _shared_llvm,
1495     method : _llvm_method,
1496     fallback : ['llvm', 'dep_llvm'],
1497   )
1498   with_llvm = dep_llvm.found()
1499 endif
1500 if with_llvm
1501   pre_args += '-DLLVM_AVAILABLE'
1502   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1503
1504   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1505   # programs, so we need to build all C++ code in mesa without rtti as well to
1506   # ensure that linking works.
1507   #
1508   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1509   # builtin llvm-config based finder. A new generic variable getter method
1510   # has also been added, so we'll use that if we can, to cover the cmake case.
1511   if dep_llvm.type_name() == 'internal'
1512     _rtti = subproject('llvm').get_variable('has_rtti', true)
1513   else
1514     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1515     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1516   endif
1517   if not _rtti
1518     if with_gallium_nouveau
1519       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1520     elif with_gallium_opencl
1521       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1522     endif
1523     if cc.get_id() == 'msvc'
1524       cpp_args += '/GR-'
1525     else
1526       cpp_args += '-fno-rtti'
1527     endif
1528   endif
1529 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1530   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1531 elif with_gallium_opencl
1532   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1533 endif
1534
1535 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1536     (with_gallium_r600 and with_llvm))
1537   dep_elf = dependency('libelf', required : false)
1538   if not dep_elf.found()
1539     dep_elf = cc.find_library('elf')
1540   endif
1541 else
1542   dep_elf = null_dep
1543 endif
1544
1545 dep_glvnd = null_dep
1546 if with_glvnd
1547   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1548   pre_args += '-DUSE_LIBGLVND=1'
1549 endif
1550
1551 _valgrind = get_option('valgrind')
1552 if _valgrind == 'true'
1553   _valgrind = 'enabled'
1554   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1555 elif _valgrind == 'false'
1556   _valgrind = 'disabled'
1557   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1558 endif
1559 if _valgrind != 'disabled'
1560   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1561   if dep_valgrind.found()
1562     pre_args += '-DHAVE_VALGRIND'
1563   endif
1564 else
1565   dep_valgrind = null_dep
1566 endif
1567
1568 # pthread stubs. Lets not and say we didn't
1569
1570 if host_machine.system() == 'windows'
1571   # Prefer the winflexbison versions, they're much easier to install and have
1572   # better windows support.
1573
1574   prog_flex = find_program('win_flex', required : false)
1575   if prog_flex.found()
1576     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1577     # _fileno functions)
1578     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1579   else
1580     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1581   endif
1582   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1583   # __STDC__ macro to determine whether it's safe to use const keyword, but
1584   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1585   prog_flex += '-DYY_USE_CONST='
1586
1587   prog_bison = find_program('win_bison', required : false)
1588   if not prog_bison.found()
1589     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1590   endif
1591 else
1592   prog_bison = find_program('bison', required : with_any_opengl)
1593
1594   # Disable deprecated keyword warnings, since we have to use them for
1595   # old-bison compat.  See discussion in
1596   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1597   if find_program('bison', required : false, version : '> 2.3').found()
1598     prog_bison = [prog_bison, '-Wno-deprecated']
1599   endif
1600
1601   prog_flex = find_program('flex', required : with_any_opengl)
1602 endif
1603
1604 dep_selinux = null_dep
1605 if get_option('selinux')
1606   dep_selinux = dependency('libselinux')
1607   pre_args += '-DMESA_SELINUX'
1608 endif
1609
1610 _libunwind = get_option('libunwind')
1611 if _libunwind == 'true'
1612   _libunwind = 'enabled'
1613   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1614 elif _libunwind == 'false'
1615   _libunwind = 'disabled'
1616   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1617 endif
1618 if _libunwind != 'disabled'
1619   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1620   if dep_unwind.found()
1621     pre_args += '-DHAVE_LIBUNWIND'
1622   endif
1623 else
1624   dep_unwind = null_dep
1625 endif
1626
1627 if with_osmesa != 'none'
1628   if with_osmesa == 'gallium' and not with_gallium_softpipe
1629     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1630   endif
1631   if host_machine.system() == 'windows'
1632     osmesa_lib_name = 'osmesa'
1633   else
1634     osmesa_lib_name = 'OSMesa'
1635   endif
1636   osmesa_bits = get_option('osmesa-bits')
1637   if osmesa_bits != '8'
1638     if with_dri or with_glx != 'disabled'
1639       error('OSMesa bits must be 8 if building glx or dir based drivers')
1640     endif
1641     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1642     pre_args += [
1643       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1644     ]
1645   endif
1646 endif
1647
1648 # TODO: symbol mangling
1649
1650 if with_platform_wayland
1651   dep_wl_scanner = dependency('wayland-scanner', native: true)
1652   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1653   if dep_wl_scanner.version().version_compare('>= 1.15')
1654     wl_scanner_arg = 'private-code'
1655   else
1656     wl_scanner_arg = 'code'
1657   endif
1658   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1659   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1660   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1661   if with_egl
1662     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1663     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1664   endif
1665   wayland_dmabuf_xml = join_paths(
1666     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1667     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1668   )
1669   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1670 endif
1671
1672 dep_x11 = null_dep
1673 dep_xext = null_dep
1674 dep_xdamage = null_dep
1675 dep_xfixes = null_dep
1676 dep_x11_xcb = null_dep
1677 dep_xcb = null_dep
1678 dep_xcb_glx = null_dep
1679 dep_xcb_dri2 = null_dep
1680 dep_xcb_dri3 = null_dep
1681 dep_dri2proto = null_dep
1682 dep_glproto = null_dep
1683 dep_xxf86vm = null_dep
1684 dep_xcb_dri3 = null_dep
1685 dep_xcb_present = null_dep
1686 dep_xcb_sync = null_dep
1687 dep_xcb_xfixes = null_dep
1688 dep_xshmfence = null_dep
1689 dep_xcb_xrandr = null_dep
1690 dep_xlib_xrandr = null_dep
1691 if with_platform_x11
1692   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1693     dep_x11 = dependency('x11')
1694     dep_xext = dependency('xext')
1695     dep_xcb = dependency('xcb')
1696   elif with_glx == 'dri'
1697     dep_x11 = dependency('x11')
1698     dep_xext = dependency('xext')
1699     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1700     dep_xfixes = dependency('xfixes')
1701     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1702   endif
1703   if (with_any_vk or with_glx == 'dri' or with_egl or
1704        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1705         with_gallium_omx != 'disabled'))
1706     dep_xcb = dependency('xcb')
1707     dep_x11_xcb = dependency('x11-xcb')
1708     if with_dri_platform == 'drm' and not dep_libdrm.found()
1709       error('libdrm required for gallium video statetrackers when using x11')
1710     endif
1711   endif
1712   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1713     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1714
1715     if with_dri3
1716       pre_args += '-DHAVE_DRI3'
1717       dep_xcb_dri3 = dependency('xcb-dri3')
1718       dep_xcb_present = dependency('xcb-present')
1719       # until xcb-dri3 has been around long enough to make a hard-dependency:
1720       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1721           dep_xcb_present.version().version_compare('>= 1.13'))
1722         pre_args += '-DHAVE_DRI3_MODIFIERS'
1723       endif
1724       dep_xcb_sync = dependency('xcb-sync')
1725       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1726     endif
1727   endif
1728   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1729     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1730   endif
1731   if with_glx == 'dri'
1732     if with_dri_platform == 'drm'
1733       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1734       dep_xxf86vm = dependency('xxf86vm')
1735     endif
1736   endif
1737   if (with_egl or (
1738       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1739       with_gallium_omx != 'disabled'))
1740     dep_xcb_xfixes = dependency('xcb-xfixes')
1741   endif
1742   if with_xlib_lease
1743     dep_xcb_xrandr = dependency('xcb-randr')
1744     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1745   endif
1746 endif
1747
1748 if get_option('gallium-extra-hud')
1749   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1750 endif
1751
1752 _sensors = get_option('lmsensors')
1753 if _sensors == 'true'
1754   _sensors = 'enabled'
1755   warning('sensors option "true" deprecated, please use "enabled" instead.')
1756 elif _sensors == 'false'
1757   _sensors = 'disabled'
1758   warning('sensors option "false" deprecated, please use "disabled" instead.')
1759 endif
1760 if _sensors != 'disabled'
1761   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1762   if dep_lmsensors.found()
1763     pre_args += '-DHAVE_LIBSENSORS=1'
1764   endif
1765 else
1766   dep_lmsensors = null_dep
1767 endif
1768
1769 foreach a : pre_args
1770   add_project_arguments(a, language : ['c', 'cpp'])
1771 endforeach
1772 foreach a : c_args
1773   add_project_arguments(a, language : ['c'])
1774 endforeach
1775 foreach a : cpp_args
1776   add_project_arguments(a, language : ['cpp'])
1777 endforeach
1778
1779 gl_priv_reqs = []
1780
1781 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1782   gl_priv_reqs += ['x11', 'xext', 'xcb']
1783 elif with_glx == 'dri'
1784   gl_priv_reqs += [
1785     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1786     'xcb-glx >= 1.8.1']
1787   if with_dri_platform == 'drm'
1788     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1789     gl_priv_reqs += 'xxf86vm'
1790   endif
1791 endif
1792 if dep_libdrm.found()
1793   gl_priv_reqs += 'libdrm >= 2.4.75'
1794 endif
1795
1796 gl_priv_libs = []
1797 if dep_thread.found()
1798   gl_priv_libs += ['-lpthread', '-pthread']
1799 endif
1800 if dep_m.found()
1801   gl_priv_libs += '-lm'
1802 endif
1803 if dep_dl.found()
1804   gl_priv_libs += '-ldl'
1805 endif
1806
1807 pkg = import('pkgconfig')
1808
1809 if host_machine.system() == 'windows'
1810   prog_dumpbin = find_program('dumpbin', required : false)
1811   with_symbols_check = prog_dumpbin.found() and with_tests
1812   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1813 else
1814   prog_nm = find_program('nm')
1815   with_symbols_check = with_tests
1816   symbols_check_args = ['--nm', prog_nm.path()]
1817 endif
1818
1819 # This quirk needs to be applied to sources with functions defined in assembly
1820 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1821 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1822
1823 subdir('include')
1824 subdir('bin')
1825 subdir('src')
1826
1827 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1828 # formatting below unless the first argument is passed as a variable. This has
1829 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1830 # for backwards compatibility.
1831 _with_opengl_string = with_opengl ? 'yes' : 'no'
1832
1833 lines = ['',
1834   'prefix:          ' + get_option('prefix'),
1835   'libdir:          ' + get_option('libdir'),
1836   'includedir:      ' + get_option('includedir'),
1837   '',
1838   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1839                                                     with_gles1 ? 'yes' : 'no',
1840                                                     with_gles2 ? 'yes' : 'no'),
1841 ]
1842
1843 if with_osmesa != 'none'
1844   lines += ''
1845   suffix = ''
1846   if with_osmesa == 'gallium'
1847     suffix = '(Gallium)'
1848   endif
1849   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1850 else
1851   lines += 'OSMesa:          no'
1852 endif
1853
1854 if with_dri
1855   lines += ''
1856   lines += 'DRI platform:    ' + with_dri_platform
1857   if dri_drivers.length() != 0 and dri_drivers != ['']
1858     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1859   else
1860     lines += 'DRI drivers:     no'
1861   endif
1862   lines += 'DRI driver dir:  ' + dri_drivers_path
1863 endif
1864
1865 if with_glx != 'disabled'
1866   lines += ''
1867   if with_glx == 'dri'
1868     lines += 'GLX:             DRI-based'
1869   elif with_glx == 'xlib'
1870     lines += 'GLX:             Xlib-based'
1871   elif with_glx == 'gallium-xlib'
1872     lines += 'GLX:             Xlib-based (Gallium)'
1873   else
1874     lines += 'GLX:             ' + with_glx
1875   endif
1876 endif
1877
1878 lines += ''
1879 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1880 if with_egl
1881   egl_drivers = []
1882   if with_dri
1883     egl_drivers += 'builtin:egl_dri2'
1884   endif
1885   if with_dri3
1886     egl_drivers += 'builtin:egl_dri3'
1887   endif
1888   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1889 endif
1890 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1891 if _platforms.length() != 0
1892   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1893 endif
1894
1895 lines += ''
1896 if with_any_vk
1897   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1898   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1899 else
1900   lines += 'Vulkan drivers:  no'
1901 endif
1902
1903 lines += ''
1904 if with_llvm
1905   lines += 'llvm:            yes'
1906   lines += 'llvm-version:    ' + dep_llvm.version()
1907 else
1908   lines += 'llvm:            no'
1909 endif
1910
1911 lines += ''
1912 if with_gallium
1913   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1914   gallium_st = ['mesa']
1915   if with_gallium_xa
1916     gallium_st += 'xa'
1917   endif
1918   if with_gallium_xvmc
1919     gallium_st += 'xvmc'
1920   endif
1921   if with_gallium_xvmc
1922     gallium_st += 'xvmc'
1923   endif
1924   if with_gallium_vdpau
1925     gallium_st += 'vdpau'
1926   endif
1927   if with_gallium_omx != 'disabled'
1928     gallium_st += 'omx' + with_gallium_omx
1929   endif
1930   if with_gallium_va
1931     gallium_st += 'va'
1932   endif
1933   if with_gallium_st_nine
1934     gallium_st += 'nine'
1935   endif
1936   if with_gallium_opencl
1937     gallium_st += 'clover'
1938   endif
1939   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1940 else
1941   lines += 'Gallium:         no'
1942 endif
1943
1944 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1945
1946 lines += ''
1947 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1948
1949
1950 indent = '        '
1951 summary = indent + ('\n' + indent).join(lines)
1952 message('Configuration summary:\n@0@\n'.format(summary))