meson.build

   1 # Copyright © 2017-2019 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 : '>= 0.46',
  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_valgrind = get_option('valgrind')
  55 with_libunwind = get_option('libunwind')
  56 with_glx_read_only_text = get_option('glx-read-only-text')
  57 with_glx_direct = get_option('glx-direct')
  58 with_osmesa = get_option('osmesa')
  59 with_swr_arches = get_option('swr-arches')
  60 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  61 with_tools = get_option('tools')
  62 if with_tools.contains('all')
  63   with_tools = [
  64     'drm-shim',
  65     'etnaviv',
  66     'freedreno',
  67     'glsl',
  68     'intel',
  69     'intel-ui',
  70     'lima',
  71     'nir',
  72     'nouveau',
  73     'xvmc',
  74   ]
  75 endif
  76
  77 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  78 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  79
  80 dri_drivers_path = get_option('dri-drivers-path')
  81 if dri_drivers_path == ''
  82   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  83 endif
  84 dri_search_path = get_option('dri-search-path')
  85 if dri_search_path == ''
  86   dri_search_path = dri_drivers_path
  87 endif
  88
  89 with_gles1 = get_option('gles1')
  90 with_gles2 = get_option('gles2')
  91 if host_machine.system() == 'windows'
  92   if with_gles1 == 'auto'
  93     with_gles1 = 'false'
  94   endif
  95   if with_gles2 == 'auto'
  96     with_gles2 = 'false'
  97   endif
  98 endif
  99 with_opengl = get_option('opengl')
 100
 101 # Default shared glapi off for windows, on elsewhere.
 102 _sg = get_option('shared-glapi')
 103 if _sg == 'auto'
 104   with_shared_glapi = host_machine.system() != 'windows'
 105 else
 106   with_shared_glapi = _sg == 'true'
 107 endif
 108
 109 # shared-glapi is required if at least two OpenGL APIs are being built
 110 if not with_shared_glapi
 111   if ((with_gles1 == 'true' and with_gles2 == 'true') or
 112       (with_gles1 == 'true' and with_opengl) or
 113       (with_gles2 == 'true' and with_opengl))
 114     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 115   endif
 116   with_gles1 = 'false'
 117   with_gles2 = 'false'
 118 endif
 119
 120 # We require OpenGL for OpenGL ES
 121 if not with_opengl
 122   if (with_gles1 == 'true' or with_gles2 == 'true') and not with_opengl
 123     error('building OpenGL ES without OpenGL is not supported.')
 124   endif
 125   with_gles1 = 'false'
 126   with_gles2 = 'false'
 127 endif
 128
 129 with_gles1 = with_gles1 != 'false'
 130 with_gles2 = with_gles2 != 'false'
 131 with_any_opengl = with_opengl or with_gles1 or with_gles2
 132 # Only build shared_glapi if at least one OpenGL API is enabled
 133 with_shared_glapi = with_shared_glapi and with_any_opengl
 134
 135 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 136
 137 dri_drivers = get_option('dri-drivers')
 138 if dri_drivers.contains('auto')
 139   if system_has_kms_drm
 140     # TODO: PPC, Sparc
 141     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 142       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 143     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 144       dri_drivers = []
 145     else
 146       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 147             host_machine.cpu_family()))
 148     endif
 149   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 150     # only swrast would make sense here, but gallium swrast is a much better default
 151     dri_drivers = []
 152   else
 153     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 154           host_machine.system()))
 155   endif
 156 endif
 157
 158 with_dri_i915 = dri_drivers.contains('i915')
 159 with_dri_i965 = dri_drivers.contains('i965')
 160 with_dri_r100 = dri_drivers.contains('r100')
 161 with_dri_r200 = dri_drivers.contains('r200')
 162 with_dri_nouveau = dri_drivers.contains('nouveau')
 163 with_dri_swrast = dri_drivers.contains('swrast')
 164
 165 with_dri = dri_drivers.length() != 0 and dri_drivers != ['']
 166
 167 gallium_drivers = get_option('gallium-drivers')
 168 if gallium_drivers.contains('auto')
 169   if system_has_kms_drm
 170     # TODO: PPC, Sparc
 171     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 172       gallium_drivers = [
 173         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 174         'iris'
 175       ]
 176     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 177       gallium_drivers = [
 178         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 179         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 180       ]
 181     else
 182       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 183             host_machine.cpu_family()))
 184     endif
 185   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 186     gallium_drivers = ['swrast']
 187   else
 188     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 189           host_machine.system()))
 190   endif
 191 endif
 192 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 193 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 194 with_gallium_r300 = gallium_drivers.contains('r300')
 195 with_gallium_r600 = gallium_drivers.contains('r600')
 196 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 197 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 198 with_gallium_softpipe = gallium_drivers.contains('swrast')
 199 with_gallium_vc4 = gallium_drivers.contains('vc4')
 200 with_gallium_v3d = gallium_drivers.contains('v3d')
 201 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 202 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 203 with_gallium_tegra = gallium_drivers.contains('tegra')
 204 with_gallium_iris = gallium_drivers.contains('iris')
 205 with_gallium_i915 = gallium_drivers.contains('i915')
 206 with_gallium_svga = gallium_drivers.contains('svga')
 207 with_gallium_virgl = gallium_drivers.contains('virgl')
 208 with_gallium_swr = gallium_drivers.contains('swr')
 209 with_gallium_lima = gallium_drivers.contains('lima')
 210 with_gallium_zink = gallium_drivers.contains('zink')
 211
 212 if cc.get_id().startswith('intel') and meson.version().version_compare('< 0.49.1')
 213   error('Meson does not have sufficient support of ICC before 0.49.1 to compile mesa')
 214 endif
 215
 216 with_gallium = gallium_drivers.length() != 0 and gallium_drivers != ['']
 217
 218 if with_gallium and system_has_kms_drm
 219   _glx = get_option('glx')
 220   _egl = get_option('egl')
 221   if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 222     with_dri = true
 223   endif
 224 endif
 225
 226 _vulkan_drivers = get_option('vulkan-drivers')
 227 if _vulkan_drivers.contains('auto')
 228   if system_has_kms_drm
 229     if host_machine.cpu_family().startswith('x86')
 230       _vulkan_drivers = ['amd', 'intel']
 231     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 232       _vulkan_drivers = []
 233     else
 234       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 235             host_machine.cpu_family()))
 236     endif
 237   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 238     # No vulkan driver supports windows or macOS currently
 239     _vulkan_drivers = []
 240   else
 241     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 242           host_machine.system()))
 243   endif
 244 endif
 245
 246 with_intel_vk = _vulkan_drivers.contains('intel')
 247 with_amd_vk = _vulkan_drivers.contains('amd')
 248 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 249 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 250
 251 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 252   error('Only one swrast provider can be built')
 253 endif
 254 if with_dri_i915 and with_gallium_i915
 255   error('Only one i915 provider can be built')
 256 endif
 257 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)
 258   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 259 endif
 260 if with_gallium_tegra and not with_gallium_nouveau
 261   error('tegra driver requires nouveau driver')
 262 endif
 263
 264 if host_machine.system() == 'darwin'
 265   with_dri_platform = 'apple'
 266   pre_args += '-DBUILDING_MESA'
 267 elif ['windows', 'cygwin'].contains(host_machine.system())
 268   with_dri_platform = 'windows'
 269 elif system_has_kms_drm
 270   with_dri_platform = 'drm'
 271 else
 272   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 273   # assert here that one of those cases has been met.
 274   # FIXME: illumos ends up here as well
 275   with_dri_platform = 'none'
 276 endif
 277
 278 _platforms = get_option('platforms')
 279 if _platforms.contains('auto')
 280   if system_has_kms_drm
 281     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 282   elif ['darwin', 'cygwin'].contains(host_machine.system())
 283     _platforms = ['x11', 'surfaceless']
 284   elif ['haiku'].contains(host_machine.system())
 285     _platforms = ['haiku']
 286   elif host_machine.system() == 'windows'
 287     _platforms = ['windows']
 288   else
 289     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 290           host_machine.system()))
 291   endif
 292 endif
 293
 294 with_platform_android = _platforms.contains('android')
 295 with_platform_x11 = _platforms.contains('x11')
 296 with_platform_wayland = _platforms.contains('wayland')
 297 with_platform_drm = _platforms.contains('drm')
 298 with_platform_haiku = _platforms.contains('haiku')
 299 with_platform_surfaceless = _platforms.contains('surfaceless')
 300 with_platform_windows = _platforms.contains('windows')
 301
 302 with_platforms = false
 303 if _platforms.length() != 0 and _platforms != ['']
 304   # sanity check that list contains no empty strings
 305   if _platforms.contains('')
 306     error('Invalid argument list given to -Dplatforms, please fix.')
 307   endif
 308   with_platforms = true
 309   egl_native_platform = _platforms[0]
 310 endif
 311
 312 _xlib_lease = get_option('xlib-lease')
 313 if _xlib_lease == 'auto'
 314   with_xlib_lease = with_platform_x11 and with_platform_drm
 315 else
 316   with_xlib_lease = _xlib_lease == 'true'
 317 endif
 318
 319 with_glx = get_option('glx')
 320 if with_glx == 'auto'
 321   if with_dri
 322     with_glx = 'dri'
 323   elif with_platform_haiku
 324     with_glx = 'disabled'
 325   elif host_machine.system() == 'windows'
 326     with_glx = 'disabled'
 327   elif with_gallium
 328     # Even when building just gallium drivers the user probably wants dri
 329     with_glx = 'dri'
 330   elif with_platform_x11 and with_any_opengl and not with_any_vk
 331     # The automatic behavior should not be to turn on xlib based glx when
 332     # building only vulkan drivers
 333     with_glx = 'xlib'
 334   else
 335     with_glx = 'disabled'
 336   endif
 337 endif
 338 if with_glx == 'dri'
 339    if with_gallium
 340       with_dri = true
 341    endif
 342 endif
 343
 344 if not (with_dri or with_gallium or with_glx != 'disabled')
 345   with_gles1 = false
 346   with_gles2 = false
 347   with_opengl = false
 348   with_any_opengl = false
 349   with_shared_glapi = false
 350 endif
 351
 352 _gbm = get_option('gbm')
 353 if _gbm == 'auto'
 354   with_gbm = system_has_kms_drm and with_dri
 355 else
 356   with_gbm = _gbm == 'true'
 357 endif
 358 if with_gbm and not system_has_kms_drm
 359   error('GBM only supports DRM/KMS platforms')
 360 endif
 361
 362 _egl = get_option('egl')
 363 if _egl == 'auto'
 364   with_egl = (
 365     not ['darwin', 'windows'].contains(host_machine.system()) and
 366     with_dri and with_shared_glapi and with_platforms
 367   )
 368 elif _egl == 'true'
 369   if not with_dri
 370     error('EGL requires dri')
 371   elif not with_shared_glapi
 372     error('EGL requires shared-glapi')
 373   elif not with_platforms
 374     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
 375   elif not ['disabled', 'dri'].contains(with_glx)
 376     error('EGL requires dri, but a GLX is being built without dri')
 377   elif ['darwin', 'windows'].contains(host_machine.system())
 378     error('EGL is not available on Windows or MacOS')
 379   endif
 380   with_egl = true
 381 else
 382   with_egl = false
 383 endif
 384
 385 if with_egl and not (with_platform_drm or with_platform_surfaceless or with_platform_android)
 386   if with_gallium_radeonsi
 387     error('RadeonSI requires the drm, surfaceless or android platform when using EGL')
 388   endif
 389   if with_gallium_virgl
 390     error('Virgl requires the drm, surfaceless or android platform when using EGL')
 391   endif
 392 endif
 393
 394 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 395 if host_machine.system() != 'windows' and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 396   pre_args += '-DUSE_ELF_TLS'
 397 endif
 398
 399 if with_glx != 'disabled'
 400   if not (with_platform_x11 and with_any_opengl)
 401     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 402   elif with_glx == 'gallium-xlib'
 403     if not with_gallium
 404       error('Gallium-xlib based GLX requires at least one gallium driver')
 405     elif not with_gallium_softpipe
 406       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 407     elif with_dri
 408       error('gallium-xlib conflicts with any dri driver')
 409     endif
 410   elif with_glx == 'xlib'
 411     if with_dri
 412       error('xlib conflicts with any dri driver')
 413     endif
 414   elif with_glx == 'dri'
 415     if not with_shared_glapi
 416       error('dri based GLX requires shared-glapi')
 417     endif
 418   endif
 419 endif
 420
 421 with_glvnd = get_option('glvnd')
 422 if with_glvnd
 423   if with_platform_windows
 424     error('glvnd cannot be used on Windows')
 425   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 426     error('Cannot build glvnd support for GLX that is not DRI based.')
 427   elif with_glx == 'disabled' and not with_egl
 428     error('glvnd requires DRI based GLX and/or EGL')
 429   endif
 430   if get_option('egl-lib-suffix') != ''
 431     error('''EGL lib suffix can't be used with libglvnd''')
 432   endif
 433 endif
 434
 435 if with_vulkan_icd_dir == ''
 436   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 437 endif
 438
 439 # GNU/Hurd includes egl_dri2, without drm.
 440 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 441   host_machine.system() == 'gnu')
 442 _dri3 = get_option('dri3')
 443 if _dri3 == 'auto'
 444   with_dri3 = system_has_kms_drm and with_dri2
 445 else
 446   with_dri3 = _dri3 == 'true'
 447 endif
 448
 449 if with_any_vk and (with_platform_x11 and not with_dri3)
 450   error('Vulkan drivers require dri3 for X11 support')
 451 endif
 452 if with_dri
 453   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 454     error('building dri drivers require at least one windowing system or classic osmesa')
 455   endif
 456 endif
 457
 458 _vdpau = get_option('gallium-vdpau')
 459 if not system_has_kms_drm
 460   if _vdpau == 'true'
 461     error('VDPAU state tracker can only be build on unix-like OSes.')
 462   else
 463     _vdpau = 'false'
 464   endif
 465 elif not with_platform_x11
 466   if _vdpau == 'true'
 467     error('VDPAU state tracker requires X11 support.')
 468   else
 469     _vdpau = 'false'
 470   endif
 471 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 472           with_gallium_nouveau)
 473   if _vdpau == 'true'
 474     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 475   else
 476     _vdpau = 'false'
 477   endif
 478 endif
 479 dep_vdpau = null_dep
 480 with_gallium_vdpau = false
 481 if _vdpau != 'false'
 482   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'true')
 483   if dep_vdpau.found()
 484     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 485     with_gallium_vdpau = true
 486   endif
 487 endif
 488
 489 if with_gallium_vdpau
 490   pre_args += '-DHAVE_ST_VDPAU'
 491 endif
 492 vdpau_drivers_path = get_option('vdpau-libs-path')
 493 if vdpau_drivers_path == ''
 494   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 495 endif
 496
 497 if with_gallium_zink
 498   dep_vulkan = dependency('vulkan')
 499 endif
 500
 501 _xvmc = get_option('gallium-xvmc')
 502 if not system_has_kms_drm
 503   if _xvmc == 'true'
 504     error('XVMC state tracker can only be build on unix-like OSes.')
 505   else
 506     _xvmc = 'false'
 507   endif
 508 elif not with_platform_x11
 509   if _xvmc == 'true'
 510     error('XVMC state tracker requires X11 support.')
 511   else
 512     _xvmc = 'false'
 513   endif
 514 elif not (with_gallium_r600 or with_gallium_nouveau)
 515   if _xvmc == 'true'
 516     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 517   else
 518     _xvmc = 'false'
 519   endif
 520 endif
 521 dep_xvmc = null_dep
 522 dep_xv = null_dep
 523 with_gallium_xvmc = false
 524 if _xvmc != 'false'
 525   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'true')
 526   dep_xv = dependency('xv', required : _xvmc == 'true')
 527   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 528 endif
 529
 530 xvmc_drivers_path = get_option('xvmc-libs-path')
 531 if xvmc_drivers_path == ''
 532   xvmc_drivers_path = get_option('libdir')
 533 endif
 534
 535 _omx = get_option('gallium-omx')
 536 if not system_has_kms_drm
 537   if ['auto', 'disabled'].contains(_omx)
 538     _omx = 'disabled'
 539   else
 540     error('OMX state tracker can only be built on unix-like OSes.')
 541   endif
 542 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 543   if ['auto', 'disabled'].contains(_omx)
 544     _omx = 'disabled'
 545   else
 546     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 547   endif
 548 endif
 549 with_gallium_omx = _omx
 550 dep_omx = null_dep
 551 dep_omx_other = []
 552 if ['auto', 'bellagio'].contains(_omx)
 553   dep_omx = dependency(
 554     'libomxil-bellagio', required : _omx == 'bellagio'
 555   )
 556   if dep_omx.found()
 557     with_gallium_omx = 'bellagio'
 558   endif
 559 endif
 560 if ['auto', 'tizonia'].contains(_omx)
 561   if with_dri and with_egl
 562     dep_omx = dependency(
 563       'libtizonia', version : '>= 0.10.0',
 564       required : _omx == 'tizonia',
 565     )
 566     dep_omx_other = [
 567       dependency('libtizplatform', required : _omx == 'tizonia'),
 568       dependency('tizilheaders', required : _omx == 'tizonia'),
 569     ]
 570     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 571       with_gallium_omx = 'tizonia'
 572     endif
 573   elif _omx == 'tizonia'
 574     error('OMX-Tizonia state tracker requires dri and egl')
 575   endif
 576 endif
 577 if _omx == 'auto'
 578   with_gallium_omx = 'disabled'
 579 else
 580   with_gallium_omx = _omx
 581 endif
 582
 583 pre_args += [
 584   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 585   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 586 ]
 587
 588
 589 omx_drivers_path = get_option('omx-libs-path')
 590
 591 if with_gallium_omx != 'disabled'
 592   # Figure out where to put the omx driver.
 593   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 594   # argument to meson's get_pkgconfig_variable method.
 595   if omx_drivers_path == ''
 596     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 597     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 598     if _omx_libdir == get_option('libdir')
 599       omx_drivers_path = _omx_drivers_dir
 600     else
 601       _omx_base_dir = []
 602       # This will fail on windows. Does OMX run on windows?
 603       _omx_libdir = _omx_libdir.split('/')
 604       _omx_drivers_dir = _omx_drivers_dir.split('/')
 605       foreach o : _omx_drivers_dir
 606         if not _omx_libdir.contains(o)
 607           _omx_base_dir += o
 608         endif
 609       endforeach
 610       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 611     endif
 612   endif
 613 endif
 614
 615 _va = get_option('gallium-va')
 616 if not system_has_kms_drm
 617   if _va == 'true'
 618     error('VA state tracker can only be built on unix-like OSes.')
 619   else
 620     _va = 'false'
 621   endif
 622 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 623   if _va == 'true'
 624     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 625   else
 626     _va = 'false'
 627   endif
 628 endif
 629 with_gallium_va = false
 630 dep_va = null_dep
 631 if _va != 'false'
 632   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'true')
 633   if dep_va.found()
 634     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 635     with_gallium_va = true
 636   endif
 637 endif
 638
 639 va_drivers_path = get_option('va-libs-path')
 640 if va_drivers_path == ''
 641   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 642 endif
 643
 644 _xa = get_option('gallium-xa')
 645 if not system_has_kms_drm
 646   if _xa == 'true'
 647     error('XA state tracker can only be built on unix-like OSes.')
 648   else
 649     _xa = 'false'
 650   endif
 651 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 652           or with_gallium_svga)
 653   if _xa == 'true'
 654     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 655   else
 656     _xa = 'false'
 657   endif
 658 endif
 659 with_gallium_xa = _xa != 'false'
 660
 661 d3d_drivers_path = get_option('d3d-drivers-path')
 662 if d3d_drivers_path == ''
 663   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 664 endif
 665
 666 with_gallium_st_nine =  get_option('gallium-nine')
 667 if with_gallium_st_nine
 668   if not with_gallium_softpipe
 669     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 670   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 671             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 672             or with_gallium_iris)
 673     error('The nine state tracker requires at least one non-swrast gallium driver.')
 674   endif
 675   if not with_dri3
 676     error('Using nine with wine requires dri3')
 677   endif
 678 endif
 679
 680 if get_option('power8') != 'false'
 681   # on old versions of meson the cpu family would return as ppc64le on little
 682   # endian power8, this was changed in 0.48 such that the family would always
 683   # be ppc64 regardless of endianness, and then the machine.endian() value
 684   # should be checked. Since we support versions < 0.48 we need to use
 685   # startswith.
 686   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 687     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 688       error('Altivec is not supported with gcc version < 4.8.')
 689     endif
 690     if cc.compiles('''
 691         #include <altivec.h>
 692         int main() {
 693           vector unsigned char r;
 694           vector unsigned int v = vec_splat_u32 (1);
 695           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 696           return 0;
 697         }''',
 698         args : '-mpower8-vector',
 699         name : 'POWER8 intrinsics')
 700       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 701     elif get_option('power8') == 'true'
 702       error('POWER8 intrinsic support required but not found.')
 703     endif
 704   endif
 705 endif
 706
 707 _opencl = get_option('gallium-opencl')
 708 clover_cpp_std = []
 709 if _opencl != 'disabled'
 710   if not with_gallium
 711     error('OpenCL Clover implementation requires at least one gallium driver.')
 712   endif
 713
 714   dep_clc = dependency('libclc')
 715   with_gallium_opencl = true
 716   with_opencl_icd = _opencl == 'icd'
 717
 718   with_opencl_spirv = get_option('opencl-spirv')
 719   if with_opencl_spirv
 720     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 721     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 722     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 723   else
 724     dep_spirv_tools = null_dep
 725     dep_llvmspirvlib = null_dep
 726   endif
 727
 728   if host_machine.cpu_family().startswith('ppc') and cpp.compiles('''
 729       #if !defined(__VEC__) || !defined(__ALTIVEC__)
 730       #error "AltiVec not enabled"
 731       #endif''',
 732       name : 'Altivec')
 733     clover_cpp_std += ['cpp_std=gnu++11']
 734   endif
 735 else
 736   dep_clc = null_dep
 737   dep_spirv_tools = null_dep
 738   dep_llvmspirvlib = null_dep
 739   with_gallium_opencl = false
 740   with_opencl_icd = false
 741   with_opencl_spirv = false
 742 endif
 743
 744 gl_pkgconfig_c_flags = []
 745 if with_platform_x11
 746   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 747     pre_args += '-DHAVE_X11_PLATFORM'
 748   endif
 749   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 750     pre_args += '-DUSE_XSHM'
 751   else
 752     pre_args += '-DGLX_INDIRECT_RENDERING'
 753     if with_glx_direct
 754       pre_args += '-DGLX_DIRECT_RENDERING'
 755     endif
 756     if with_dri_platform == 'drm'
 757       pre_args += '-DGLX_USE_DRM'
 758     elif with_dri_platform == 'apple'
 759       pre_args += '-DGLX_USE_APPLEGL'
 760     elif with_dri_platform == 'windows'
 761       pre_args += '-DGLX_USE_WINDOWSGL'
 762     endif
 763   endif
 764 else
 765   pre_args += '-DEGL_NO_X11'
 766   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 767 endif
 768 if with_platform_drm
 769   if with_egl and not with_gbm
 770     error('EGL drm platform requires gbm')
 771   endif
 772   pre_args += '-DHAVE_DRM_PLATFORM'
 773 endif
 774 if with_platform_surfaceless
 775   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 776 endif
 777 if with_platform_android
 778   dep_android = [
 779     dependency('cutils'),
 780     dependency('hardware'),
 781     dependency('sync'),
 782   ]
 783   if with_gallium
 784     dep_android += dependency('backtrace')
 785   endif
 786   if get_option('platform-sdk-version') >= 26
 787     dep_android += dependency('nativewindow')
 788   endif
 789   pre_args += '-DHAVE_ANDROID_PLATFORM'
 790 endif
 791 if with_platform_haiku
 792   pre_args += '-DHAVE_HAIKU_PLATFORM'
 793 endif
 794
 795 if meson.version().version_compare('>=0.50')
 796   prog_python = import('python').find_installation('python3')
 797 else
 798   prog_python = import('python3').find_python()
 799 endif
 800 has_mako = run_command(
 801   prog_python, '-c',
 802   '''
 803 from distutils.version import StrictVersion
 804 import mako
 805 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 806   ''')
 807 if has_mako.returncode() != 0
 808   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 809 endif
 810
 811 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 812   error('When using GCC, version 4.4.6 or later is required.')
 813 endif
 814
 815 # Support systems without ETIME (e.g. FreeBSD)
 816 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 817   pre_args += '-DETIME=ETIMEDOUT'
 818 endif
 819
 820 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 821 if get_option('buildtype') == 'debug'
 822   pre_args += '-DDEBUG'
 823 endif
 824
 825 with_shader_cache = false
 826 _shader_cache = get_option('shader-cache')
 827 if _shader_cache != 'false'
 828   if host_machine.system() == 'windows'
 829     if _shader_cache == 'true'
 830       error('Shader Cache does not currently work on Windows')
 831     endif
 832   else
 833     pre_args += '-DENABLE_SHADER_CACHE'
 834     with_shader_cache = true
 835   endif
 836 endif
 837 if with_amd_vk and not with_shader_cache
 838   error('Radv requires shader cache support')
 839 endif
 840
 841 # Check for GCC style builtins
 842 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 843              'ffsll', 'popcount', 'popcountll', 'unreachable']
 844   if cc.has_function(b)
 845     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 846   endif
 847 endforeach
 848
 849 # check for GCC __attribute__
 850 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 851              'warn_unused_result', 'weak',]
 852   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 853                  name : '__attribute__((@0@))'.format(a))
 854     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 855   endif
 856 endforeach
 857 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 858                name : '__attribute__((format(...)))')
 859   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 860 endif
 861 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 862                name : '__attribute__((packed))')
 863   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 864 endif
 865 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 866                name : '__attribute__((returns_nonnull))')
 867   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 868 endif
 869 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 870                   int foo_hid(void) __attribute__((visibility("hidden")));
 871                   int foo_int(void) __attribute__((visibility("internal")));
 872                   int foo_pro(void) __attribute__((visibility("protected")));''',
 873                name : '__attribute__((visibility(...)))')
 874   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 875 endif
 876 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 877                name : '__attribute__((alias(...)))')
 878   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 879 endif
 880 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 881                name : '__attribute__((__noreturn__))')
 882   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 883 endif
 884 if cc.compiles('__uint128_t foo(void) { return 0; }',
 885                name : '__uint128_t')
 886   pre_args += '-DHAVE_UINT128'
 887 endif
 888
 889 # TODO: this is very incomplete
 890 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 891   pre_args += '-D_GNU_SOURCE'
 892 elif host_machine.system() == 'sunos'
 893   pre_args += '-D__EXTENSIONS__'
 894 elif host_machine.system() == 'windows'
 895   pre_args += [
 896     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 897     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 898     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 899   ]
 900   if cc.get_id() == 'msvc'
 901     pre_args += [
 902       '-DVC_EXTRALEAN',
 903       '-D_CRT_SECURE_NO_WARNINGS',
 904       '-D_CRT_SECURE_NO_DEPRECATE',
 905       '-D_SCL_SECURE_NO_WARNINGS',
 906       '-D_SCL_SECURE_NO_DEPRECATE',
 907       '-D_ALLOW_KEYWORD_MACROS',
 908       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 909     ]
 910   else
 911     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 912   endif
 913 endif
 914
 915 # Check for generic C arguments
 916 c_args = []
 917 c_vis_args = []
 918 c_msvc_compat_args = []
 919 no_override_init_args = []
 920 cpp_args = []
 921 cpp_vis_args = []
 922 cpp_msvc_compat_args = []
 923 if cc.get_id() == 'msvc'
 924   foreach a : ['/wd4018',  # signed/unsigned mismatch
 925                '/wd4056',  # overflow in floating-point constant arithmetic
 926                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 927                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 928                '/wd4305',  # trancation from 'type1' to 'type2'
 929                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 930                '/wd4756',  # overflow in constant arithmetic
 931                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 932                '/wd4996',  # disabled deprecated POSIX name warnings
 933                '/wd4291',  # no matching operator delete found
 934                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 935                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 936                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 937               ]
 938     if cc.has_argument(a)
 939       c_args += a
 940     endif
 941     if cpp.has_argument(a)
 942       cpp_args += a
 943     endif
 944   endforeach
 945   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 946     c_args += '-Wno-microsoft-enum-value'
 947     cpp_args += '-Wno-microsoft-enum-value'
 948   endif
 949 else
 950   _trial = [
 951     '-Werror=implicit-function-declaration',
 952     '-Werror=missing-prototypes',
 953     '-Werror=return-type',
 954     '-Werror=empty-body',
 955     '-Werror=incompatible-pointer-types',
 956     '-Werror=int-conversion',
 957     '-Wno-missing-field-initializers',
 958     '-Wno-format-truncation',
 959     '-fno-math-errno',
 960     '-fno-trapping-math',
 961     '-Qunused-arguments',
 962     '-fno-common',
 963   ]
 964   # MinGW chokes on format specifiers and I can't get it all working
 965   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
 966     _trial += ['-Werror=format', '-Wformat-security']
 967   endif
 968   foreach a : _trial
 969     if cc.has_argument(a)
 970       c_args += a
 971     endif
 972   endforeach
 973
 974   _trial = [
 975     '-Werror=return-type',
 976     '-Werror=empty-body',
 977     '-Wno-non-virtual-dtor',
 978     '-Wno-missing-field-initializers',
 979     '-Wno-format-truncation',
 980     '-fno-math-errno',
 981     '-fno-trapping-math',
 982     '-Qunused-arguments',
 983   ]
 984   # MinGW chokes on format specifiers and I can't get it all working
 985   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
 986     _trial += ['-Werror=format', '-Wformat-security']
 987   endif
 988   foreach a : _trial
 989     if cpp.has_argument(a)
 990       cpp_args += a
 991     endif
 992   endforeach
 993
 994   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
 995     if cc.has_argument(a)
 996       no_override_init_args += a
 997     endif
 998   endforeach
 999
1000   if cc.has_argument('-fvisibility=hidden')
1001     c_vis_args += '-fvisibility=hidden'
1002   endif
1003
1004   # Check for C and C++ arguments for MSVC compatibility. These are only used
1005   # in parts of the mesa code base that need to compile with MSVC, mainly
1006   # common code
1007   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1008     if cc.has_argument(a)
1009       c_msvc_compat_args += a
1010     endif
1011     if cpp.has_argument(a)
1012       cpp_msvc_compat_args += a
1013     endif
1014   endforeach
1015
1016   if cpp.has_argument('-fvisibility=hidden')
1017     cpp_vis_args += '-fvisibility=hidden'
1018   endif
1019
1020 endif
1021
1022 # set linker arguments
1023 if host_machine.system() == 'windows'
1024   if cc.get_id() == 'msvc'
1025     add_project_link_arguments(
1026       '/fixed:no',
1027       '/dynamicbase',
1028       '/nxcompat',
1029       language : ['c', 'cpp'],
1030     )
1031     if get_option('buildtype') != 'debug'
1032       add_project_link_arguments(
1033         '/incremental:no',
1034         language : ['c', 'cpp'],
1035       )
1036     endif
1037   else
1038     add_project_link_arguments(
1039       '-Wl,--nxcompat',
1040       '-Wl,--dynamicbase',
1041       '-static-libgcc',
1042       '-static-libstdc++',
1043       language : ['c', 'cpp'],
1044     )
1045   endif
1046 endif
1047
1048 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1049   pre_args += '-DUSE_SSE41'
1050   with_sse41 = true
1051   sse41_args = ['-msse4.1']
1052
1053   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1054   # that's not guaranteed
1055   if host_machine.cpu_family() == 'x86'
1056     sse41_args += '-mstackrealign'
1057   endif
1058 else
1059   with_sse41 = false
1060   sse41_args = []
1061 endif
1062
1063 # Check for GCC style atomics
1064 dep_atomic = null_dep
1065
1066 if cc.compiles('''#include <stdint.h>
1067                   int main() {
1068                     struct {
1069                       uint64_t *v;
1070                     } x;
1071                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1072                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1073
1074                   }''',
1075                name : 'GCC atomic builtins')
1076   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1077
1078   # Not all atomic calls can be turned into lock-free instructions, in which
1079   # GCC will make calls into the libatomic library. Check whether we need to
1080   # link with -latomic.
1081   #
1082   # This can happen for 64-bit atomic operations on 32-bit architectures such
1083   # as ARM.
1084   if not cc.links('''#include <stdint.h>
1085                      int main() {
1086                        struct {
1087                          uint64_t *v;
1088                        } x;
1089                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1090                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1091                      }''',
1092                   name : 'GCC atomic builtins required -latomic')
1093     dep_atomic = cc.find_library('atomic')
1094   endif
1095 endif
1096 if not cc.links('''#include <stdint.h>
1097                    uint64_t v;
1098                    int main() {
1099                      return __sync_add_and_fetch(&v, (uint64_t)1);
1100                    }''',
1101                 dependencies : dep_atomic,
1102                 name : 'GCC 64bit atomics')
1103   pre_args += '-DMISSING_64BIT_ATOMICS'
1104 endif
1105
1106 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1107
1108 # TODO: shared/static? Is this even worth doing?
1109
1110 with_asm_arch = ''
1111 if host_machine.cpu_family() == 'x86'
1112   if system_has_kms_drm or host_machine.system() == 'gnu'
1113     with_asm_arch = 'x86'
1114     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1115                  '-DUSE_SSE_ASM']
1116
1117     if with_glx_read_only_text
1118       pre_args += ['-DGLX_X86_READONLY_TEXT']
1119     endif
1120   endif
1121 elif host_machine.cpu_family() == 'x86_64'
1122   if system_has_kms_drm
1123     with_asm_arch = 'x86_64'
1124     pre_args += ['-DUSE_X86_64_ASM']
1125   endif
1126 elif host_machine.cpu_family() == 'arm'
1127   if system_has_kms_drm
1128     with_asm_arch = 'arm'
1129     pre_args += ['-DUSE_ARM_ASM']
1130   endif
1131 elif host_machine.cpu_family() == 'aarch64'
1132   if system_has_kms_drm
1133     with_asm_arch = 'aarch64'
1134     pre_args += ['-DUSE_AARCH64_ASM']
1135   endif
1136 elif host_machine.cpu_family() == 'sparc64'
1137   if system_has_kms_drm
1138     with_asm_arch = 'sparc'
1139     pre_args += ['-DUSE_SPARC_ASM']
1140   endif
1141 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1142   if system_has_kms_drm
1143     with_asm_arch = 'ppc64le'
1144     pre_args += ['-DUSE_PPC64LE_ASM']
1145   endif
1146 endif
1147
1148 # Check for standard headers and functions
1149 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1150   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1151   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1152   pre_args += '-DMAJOR_IN_SYSMACROS'
1153 endif
1154 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1155   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1156   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1157   pre_args += '-DMAJOR_IN_MKDEV'
1158 endif
1159
1160 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1161   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
1162     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1163   endif
1164 endforeach
1165
1166 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r']
1167   if cc.has_function(f)
1168     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1169   endif
1170 endforeach
1171
1172 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1173                         args : '-D_GNU_SOURCE')
1174    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1175 elif with_tools.contains('intel')
1176   error('Intel tools require the program_invocation_name variable')
1177 endif
1178
1179 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1180 # This means that this check will succeed, but then compilation will later
1181 # fail. MSVC doesn't have this function at all, so only check for it on
1182 # non-windows platforms.
1183 if host_machine.system() != 'windows'
1184   if cc.has_function('posix_memalign')
1185     pre_args += '-DHAVE_POSIX_MEMALIGN'
1186   endif
1187 endif
1188
1189 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1190    #include <dirent.h>''')
1191    pre_args += '-DHAVE_DIRENT_D_TYPE'
1192 endif
1193
1194 # strtod locale support
1195 if cc.links('''
1196     #define _GNU_SOURCE
1197     #include <stdlib.h>
1198     #include <locale.h>
1199     #ifdef HAVE_XLOCALE_H
1200     #include <xlocale.h>
1201     #endif
1202     int main() {
1203       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1204       const char *s = "1.0";
1205       char *end;
1206       double d = strtod_l(s, end, loc);
1207       float f = strtof_l(s, end, loc);
1208       freelocale(loc);
1209       return 0;
1210     }''',
1211     args : pre_args,
1212     name : 'strtod has locale support')
1213   pre_args += '-DHAVE_STRTOD_L'
1214 endif
1215
1216 # Check for some linker flags
1217 ld_args_bsymbolic = []
1218 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1219   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1220 endif
1221 ld_args_gc_sections = []
1222 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1223             args : '-Wl,--gc-sections', name : 'gc-sections')
1224   ld_args_gc_sections += '-Wl,--gc-sections'
1225 endif
1226 with_ld_version_script = false
1227 if cc.links('int main() { return 0; }',
1228             args : '-Wl,--version-script=@0@'.format(
1229               join_paths(meson.source_root(), 'build-support/conftest.map')),
1230             name : 'version-script')
1231   with_ld_version_script = true
1232 endif
1233 with_ld_dynamic_list = false
1234 if cc.links('int main() { return 0; }',
1235             args : '-Wl,--dynamic-list=@0@'.format(
1236               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1237             name : 'dynamic-list')
1238   with_ld_dynamic_list = true
1239 endif
1240
1241 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1242
1243 # check for dl support
1244 dep_dl = null_dep
1245 if not cc.has_function('dlopen')
1246   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1247 endif
1248 if cc.has_function('dladdr', dependencies : dep_dl)
1249   # This is really only required for megadrivers
1250   pre_args += '-DHAVE_DLADDR'
1251 endif
1252
1253 if cc.has_function('dl_iterate_phdr')
1254   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1255 elif with_intel_vk
1256   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1257 elif with_dri_i965 and with_shader_cache
1258   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1259 endif
1260
1261 # Determine whether or not the rt library is needed for time functions
1262 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1263   dep_clock = null_dep
1264 else
1265   dep_clock = cc.find_library('rt')
1266 endif
1267
1268 # TODO: some of these may be conditional
1269 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1270 pre_args += '-DHAVE_ZLIB'
1271
1272 _zstd = get_option('zstd')
1273 if _zstd != 'false'
1274   dep_zstd = dependency('libzstd', required : _zstd == 'true')
1275   if dep_zstd.found()
1276     pre_args += '-DHAVE_ZSTD'
1277   endif
1278 else
1279   dep_zstd = null_dep
1280 endif
1281
1282 dep_thread = dependency('threads')
1283 if dep_thread.found() and host_machine.system() != 'windows'
1284   pre_args += '-DHAVE_PTHREAD'
1285   if cc.has_function(
1286       'pthread_setaffinity_np',
1287       dependencies : dep_thread,
1288       prefix : '#include <pthread.h>',
1289       args : '-D_GNU_SOURCE')
1290     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1291   endif
1292   if cc.has_function(
1293       'pthread_setaffinity_np',
1294       dependencies : dep_thread,
1295       prefix : '#include <pthread_np.h>')
1296     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1297   endif
1298 endif
1299 if host_machine.system() != 'windows'
1300   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1301 else
1302   dep_expat = null_dep
1303 endif
1304 # this only exists on linux so either this is linux and it will be found, or
1305 # it's not linux and wont
1306 dep_m = cc.find_library('m', required : false)
1307
1308 # Check for libdrm. Various drivers have different libdrm version requirements,
1309 # but we always want to use the same version for all libdrm modules. That means
1310 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1311 # bar are both on use 2.4.3 for both of them
1312 dep_libdrm_amdgpu = null_dep
1313 dep_libdrm_radeon = null_dep
1314 dep_libdrm_nouveau = null_dep
1315 dep_libdrm_intel = null_dep
1316
1317 _drm_amdgpu_ver = '2.4.100'
1318 _drm_radeon_ver = '2.4.71'
1319 _drm_nouveau_ver = '2.4.66'
1320 _drm_intel_ver = '2.4.75'
1321 _drm_ver = '2.4.81'
1322
1323 _libdrm_checks = [
1324   ['intel', with_dri_i915 or with_gallium_i915],
1325   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1326   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1327               with_gallium_r300 or with_gallium_r600)],
1328   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1329 ]
1330
1331 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1332 # library.
1333 if with_gallium_vc4
1334   _drm_ver = '2.4.89'
1335 endif
1336
1337 # etnaviv only needs core libdrm
1338 if with_gallium_etnaviv
1339   _drm_ver = '2.4.89'
1340 endif
1341
1342 # Loop over the enables versions and get the highest libdrm requirement for all
1343 # active drivers.
1344 _drm_blame = ''
1345 foreach d : _libdrm_checks
1346   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1347   if d[1] and ver.version_compare('>' + _drm_ver)
1348     _drm_ver = ver
1349     _drm_blame = d[0]
1350   endif
1351 endforeach
1352 if _drm_blame != ''
1353   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1354 endif
1355
1356 # Then get each libdrm module
1357 foreach d : _libdrm_checks
1358   if d[1]
1359     set_variable(
1360       'dep_libdrm_' + d[0],
1361       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1362     )
1363   endif
1364 endforeach
1365
1366 with_gallium_drisw_kms = false
1367 dep_libdrm = dependency(
1368   'libdrm', version : '>=' + _drm_ver,
1369   # GNU/Hurd includes egl_dri2, without drm.
1370   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1371 )
1372 if dep_libdrm.found()
1373   pre_args += '-DHAVE_LIBDRM'
1374   if with_dri_platform == 'drm' and with_dri
1375     with_gallium_drisw_kms = true
1376   endif
1377 endif
1378
1379 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1380 llvm_optional_modules = ['coroutines']
1381 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1382   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1383   if with_gallium_r600
1384     llvm_modules += 'asmparser'
1385   endif
1386 endif
1387 if with_gallium_opencl
1388   llvm_modules += [
1389     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1390     'lto', 'option', 'objcarcopts', 'profiledata',
1391   ]
1392 endif
1393
1394 if with_amd_vk or with_gallium_radeonsi
1395   _llvm_version = '>= 8.0.0'
1396 elif with_gallium_swr
1397   _llvm_version = '>= 6.0.0'
1398 else
1399   _llvm_version = '>= 3.9.0'
1400 endif
1401
1402 _shared_llvm = get_option('shared-llvm')
1403 if _shared_llvm == 'auto'
1404   _shared_llvm = (host_machine.system() != 'windows')
1405 else
1406   _shared_llvm = (_shared_llvm == 'true')
1407 endif
1408 _llvm = get_option('llvm')
1409
1410 # the cmake method can only link statically, so don't attempt to use it if we
1411 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1412 # linking is requested, so we need to force the config-tool method to be used
1413 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1414 # linking is requested.
1415 _llvm_method = 'auto'
1416 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1417   _llvm_method = 'config-tool'
1418 endif
1419
1420 dep_llvm = null_dep
1421 with_llvm = false
1422 if _llvm != 'false'
1423   dep_llvm = dependency(
1424     'llvm',
1425     version : _llvm_version,
1426     modules : llvm_modules,
1427     optional_modules : llvm_optional_modules,
1428     required : (
1429       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1430       with_gallium_opencl or _llvm == 'true'
1431     ),
1432     static : not _shared_llvm,
1433     method : _llvm_method,
1434     fallback : ['llvm', 'dep_llvm'],
1435   )
1436   with_llvm = dep_llvm.found()
1437 endif
1438 if with_llvm
1439   pre_args += '-DLLVM_AVAILABLE'
1440   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1441
1442   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1443   # programs, so we need to build all C++ code in mesa without rtti as well to
1444   # ensure that linking works.
1445   #
1446   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1447   # builtin llvm-config based finder. A new generic variable getter method
1448   # has also been added, so we'll use that if we can, to cover the cmake case.
1449   if dep_llvm.type_name() == 'internal'
1450     _rtti = subproject('llvm').get_variable('has_rtti', true)
1451   elif meson.version().version_compare('>=0.51')
1452     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1453     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1454   else
1455     _rtti = dep_llvm.get_configtool_variable('has-rtti') == 'YES'
1456   endif
1457   if not _rtti
1458     if with_gallium_nouveau
1459       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1460     elif with_gallium_opencl
1461       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1462     endif
1463     if cc.get_id() == 'msvc'
1464       cpp_args += '/GR-'
1465     else
1466       cpp_args += '-fno-rtti'
1467     endif
1468   endif
1469 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1470   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1471 elif with_gallium_opencl
1472   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1473 endif
1474
1475 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1476     (with_gallium_r600 and with_llvm))
1477   dep_elf = dependency('libelf', required : false)
1478   if not dep_elf.found()
1479     dep_elf = cc.find_library('elf')
1480   endif
1481 else
1482   dep_elf = null_dep
1483 endif
1484
1485 dep_glvnd = null_dep
1486 if with_glvnd
1487   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1488   pre_args += '-DUSE_LIBGLVND=1'
1489 endif
1490
1491 if with_valgrind != 'false'
1492   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1493   if dep_valgrind.found()
1494     pre_args += '-DHAVE_VALGRIND'
1495   endif
1496 else
1497   dep_valgrind = null_dep
1498 endif
1499
1500 # pthread stubs. Lets not and say we didn't
1501
1502 if host_machine.system() == 'windows'
1503   # Prefer the winflexbison versions, they're much easier to install and have
1504   # better windows support.
1505
1506   prog_flex = find_program('win_flex', required : false)
1507   if prog_flex.found()
1508     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1509     # _fileno functions)
1510     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1511   else
1512     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1513   endif
1514   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1515   # __STDC__ macro to determine whether it's safe to use const keyword, but
1516   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1517   prog_flex += '-DYY_USE_CONST='
1518
1519   prog_bison = find_program('win_bison', required : false)
1520   if not prog_bison.found()
1521     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1522   endif
1523 else
1524   prog_bison = find_program('bison', required : with_any_opengl)
1525
1526   # Disable deprecated keyword warnings, since we have to use them for
1527   # old-bison compat.  See discussion in
1528   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1529   if meson.version().version_compare('>= 0.52.0') and find_program('bison', required : false, version : '> 2.3').found()
1530     prog_bison = [prog_bison, '-Wno-deprecated']
1531   endif
1532
1533   prog_flex = find_program('flex', required : with_any_opengl)
1534 endif
1535
1536 dep_selinux = null_dep
1537 if get_option('selinux')
1538   dep_selinux = dependency('libselinux')
1539   pre_args += '-DMESA_SELINUX'
1540 endif
1541
1542 if with_libunwind != 'false'
1543   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1544   if dep_unwind.found()
1545     pre_args += '-DHAVE_LIBUNWIND'
1546   endif
1547 else
1548   dep_unwind = null_dep
1549 endif
1550
1551 if with_osmesa != 'none'
1552   if with_osmesa == 'gallium' and not with_gallium_softpipe
1553     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1554   endif
1555   if host_machine.system() == 'windows'
1556     osmesa_lib_name = 'osmesa'
1557   else
1558     osmesa_lib_name = 'OSMesa'
1559   endif
1560   osmesa_bits = get_option('osmesa-bits')
1561   if osmesa_bits != '8'
1562     if with_dri or with_glx != 'disabled'
1563       error('OSMesa bits must be 8 if building glx or dir based drivers')
1564     endif
1565     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1566     pre_args += [
1567       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1568     ]
1569   endif
1570 endif
1571
1572 # TODO: symbol mangling
1573
1574 if with_platform_wayland
1575   dep_wl_scanner = dependency('wayland-scanner', native: true)
1576   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1577   if dep_wl_scanner.version().version_compare('>= 1.15')
1578     wl_scanner_arg = 'private-code'
1579   else
1580     wl_scanner_arg = 'code'
1581   endif
1582   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1583   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1584   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1585   if with_egl
1586     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1587     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1588   endif
1589   wayland_dmabuf_xml = join_paths(
1590     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1591     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1592   )
1593   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1594 endif
1595
1596 dep_x11 = null_dep
1597 dep_xext = null_dep
1598 dep_xdamage = null_dep
1599 dep_xfixes = null_dep
1600 dep_x11_xcb = null_dep
1601 dep_xcb = null_dep
1602 dep_xcb_glx = null_dep
1603 dep_xcb_dri2 = null_dep
1604 dep_xcb_dri3 = null_dep
1605 dep_dri2proto = null_dep
1606 dep_glproto = null_dep
1607 dep_xxf86vm = null_dep
1608 dep_xcb_dri3 = null_dep
1609 dep_xcb_present = null_dep
1610 dep_xcb_sync = null_dep
1611 dep_xcb_xfixes = null_dep
1612 dep_xshmfence = null_dep
1613 dep_xcb_xrandr = null_dep
1614 dep_xlib_xrandr = null_dep
1615 if with_platform_x11
1616   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1617     dep_x11 = dependency('x11')
1618     dep_xext = dependency('xext')
1619     dep_xcb = dependency('xcb')
1620   elif with_glx == 'dri'
1621     dep_x11 = dependency('x11')
1622     dep_xext = dependency('xext')
1623     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1624     dep_xfixes = dependency('xfixes')
1625     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1626   endif
1627   if (with_any_vk or with_glx == 'dri' or with_egl or
1628        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1629         with_gallium_omx != 'disabled'))
1630     dep_xcb = dependency('xcb')
1631     dep_x11_xcb = dependency('x11-xcb')
1632     if with_dri_platform == 'drm' and not dep_libdrm.found()
1633       error('libdrm required for gallium video statetrackers when using x11')
1634     endif
1635   endif
1636   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1637     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1638
1639     if with_dri3
1640       pre_args += '-DHAVE_DRI3'
1641       dep_xcb_dri3 = dependency('xcb-dri3')
1642       dep_xcb_present = dependency('xcb-present')
1643       # until xcb-dri3 has been around long enough to make a hard-dependency:
1644       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1645           dep_xcb_present.version().version_compare('>= 1.13'))
1646         pre_args += '-DHAVE_DRI3_MODIFIERS'
1647       endif
1648       dep_xcb_sync = dependency('xcb-sync')
1649       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1650     endif
1651   endif
1652   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1653     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1654   endif
1655   if with_glx == 'dri'
1656     if with_dri_platform == 'drm'
1657       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1658       dep_xxf86vm = dependency('xxf86vm')
1659     endif
1660   endif
1661   if (with_egl or (
1662       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1663       with_gallium_omx != 'disabled'))
1664     dep_xcb_xfixes = dependency('xcb-xfixes')
1665   endif
1666   if with_xlib_lease
1667     dep_xcb_xrandr = dependency('xcb-randr')
1668     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1669   endif
1670 endif
1671
1672 if get_option('gallium-extra-hud')
1673   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1674 endif
1675
1676 _sensors = get_option('lmsensors')
1677 if _sensors != 'false'
1678   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'true')
1679   if dep_lmsensors.found()
1680     pre_args += '-DHAVE_LIBSENSORS=1'
1681   endif
1682 else
1683   dep_lmsensors = null_dep
1684 endif
1685
1686 foreach a : pre_args
1687   add_project_arguments(a, language : ['c', 'cpp'])
1688 endforeach
1689 foreach a : c_args
1690   add_project_arguments(a, language : ['c'])
1691 endforeach
1692 foreach a : cpp_args
1693   add_project_arguments(a, language : ['cpp'])
1694 endforeach
1695
1696 gl_priv_reqs = []
1697
1698 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1699   gl_priv_reqs += ['x11', 'xext', 'xcb']
1700 elif with_glx == 'dri'
1701   gl_priv_reqs += [
1702     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1703     'xcb-glx >= 1.8.1']
1704   if with_dri_platform == 'drm'
1705     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1706     gl_priv_reqs += 'xxf86vm'
1707   endif
1708 endif
1709 if dep_libdrm.found()
1710   gl_priv_reqs += 'libdrm >= 2.4.75'
1711 endif
1712
1713 gl_priv_libs = []
1714 if dep_thread.found()
1715   gl_priv_libs += ['-lpthread', '-pthread']
1716 endif
1717 if dep_m.found()
1718   gl_priv_libs += '-lm'
1719 endif
1720 if dep_dl.found()
1721   gl_priv_libs += '-ldl'
1722 endif
1723
1724 pkg = import('pkgconfig')
1725
1726 if host_machine.system() == 'windows'
1727   prog_dumpbin = find_program('dumpbin', required : false)
1728   with_symbols_check = prog_dumpbin.found() and with_tests
1729   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1730 else
1731   prog_nm = find_program('nm')
1732   with_symbols_check = with_tests
1733   symbols_check_args = ['--nm', prog_nm.path()]
1734 endif
1735
1736 # This quirk needs to be applied to sources with functions defined in assembly
1737 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1738 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1739
1740 subdir('include')
1741 subdir('bin')
1742 subdir('src')
1743
1744 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1745 # formatting below unless the first argument is passed as a variable. This has
1746 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1747 # for backwards compatibility.
1748 _with_opengl_string = with_opengl ? 'yes' : 'no'
1749
1750 lines = ['',
1751   'prefix:          ' + get_option('prefix'),
1752   'libdir:          ' + get_option('libdir'),
1753   'includedir:      ' + get_option('includedir'),
1754   '',
1755   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1756                                                     with_gles1 ? 'yes' : 'no',
1757                                                     with_gles2 ? 'yes' : 'no'),
1758 ]
1759
1760 if with_osmesa != 'none'
1761   lines += ''
1762   suffix = ''
1763   if with_osmesa == 'gallium'
1764     suffix = '(Gallium)'
1765   endif
1766   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1767 else
1768   lines += 'OSMesa:          no'
1769 endif
1770
1771 if with_dri
1772   lines += ''
1773   lines += 'DRI platform:    ' + with_dri_platform
1774   if dri_drivers.length() != 0 and dri_drivers != ['']
1775     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1776   else
1777     lines += 'DRI drivers:     no'
1778   endif
1779   lines += 'DRI driver dir:  ' + dri_drivers_path
1780 endif
1781
1782 if with_glx != 'disabled'
1783   lines += ''
1784   if with_glx == 'dri'
1785     lines += 'GLX:             DRI-based'
1786   elif with_glx == 'xlib'
1787     lines += 'GLX:             Xlib-based'
1788   elif with_glx == 'gallium-xlib'
1789     lines += 'GLX:             Xlib-based (Gallium)'
1790   else
1791     lines += 'GLX:             ' + with_glx
1792   endif
1793 endif
1794
1795 lines += ''
1796 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1797 if with_egl
1798   egl_drivers = []
1799   if with_dri
1800     egl_drivers += 'builtin:egl_dri2'
1801   endif
1802   if with_dri3
1803     egl_drivers += 'builtin:egl_dri3'
1804   endif
1805   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1806 endif
1807 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1808 if with_platforms
1809   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1810 endif
1811
1812 lines += ''
1813 if with_any_vk
1814   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1815   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1816 else
1817   lines += 'Vulkan drivers:  no'
1818 endif
1819
1820 lines += ''
1821 if with_llvm
1822   lines += 'llvm:            yes'
1823   lines += 'llvm-version:    ' + dep_llvm.version()
1824 else
1825   lines += 'llvm:            no'
1826 endif
1827
1828 lines += ''
1829 if with_gallium
1830   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1831   gallium_st = ['mesa']
1832   if with_gallium_xa
1833     gallium_st += 'xa'
1834   endif
1835   if with_gallium_xvmc
1836     gallium_st += 'xvmc'
1837   endif
1838   if with_gallium_xvmc
1839     gallium_st += 'xvmc'
1840   endif
1841   if with_gallium_vdpau
1842     gallium_st += 'vdpau'
1843   endif
1844   if with_gallium_omx != 'disabled'
1845     gallium_st += 'omx' + with_gallium_omx
1846   endif
1847   if with_gallium_va
1848     gallium_st += 'va'
1849   endif
1850   if with_gallium_st_nine
1851     gallium_st += 'nine'
1852   endif
1853   if with_gallium_opencl
1854     gallium_st += 'clover'
1855   endif
1856   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1857 else
1858   lines += 'Gallium:         no'
1859 endif
1860
1861 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1862
1863 lines += ''
1864 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1865
1866
1867 indent = '        '
1868 summary = indent + ('\n' + indent).join(lines)
1869 message('Configuration summary:\n@0@\n'.format(summary))