meson.build

   1 # Copyright © 2017-2018 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', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.44.1',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  38
  39 # Arguments for the preprocessor, put these in a separate array from the C and
  40 # C++ (cpp in meson terminology) arguments since they need to be added to the
  41 # default arguments for both C and C++.
  42 pre_args = [
  43   '-D__STDC_CONSTANT_MACROS',
  44   '-D__STDC_FORMAT_MACROS',
  45   '-D__STDC_LIMIT_MACROS',
  46   '-DVERSION="@0@"'.format(meson.project_version()),
  47   '-DPACKAGE_VERSION=VERSION',
  48   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  49 ]
  50
  51 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  52 with_tests = get_option('build-tests')
  53 with_valgrind = get_option('valgrind')
  54 with_libunwind = get_option('libunwind')
  55 with_asm = get_option('asm')
  56 with_glx_read_only_text = get_option('glx-read-only-text')
  57 with_osmesa = get_option('osmesa')
  58 with_swr_arches = get_option('swr-arches')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau']
  62 endif
  63
  64 dri_drivers_path = get_option('dri-drivers-path')
  65 if dri_drivers_path == ''
  66   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  67 endif
  68 dri_search_path = get_option('dri-search-path')
  69 if dri_search_path == ''
  70   dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
  71 endif
  72
  73 with_gles1 = get_option('gles1')
  74 with_gles2 = get_option('gles2')
  75 with_opengl = get_option('opengl')
  76 with_any_opengl = with_opengl or with_gles1 or with_gles2
  77 # Only build shared_glapi if at least one OpenGL API is enabled
  78 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  79
  80
  81 # shared-glapi is required if at least two OpenGL APIs are being built
  82 if not with_shared_glapi
  83   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  84       or (with_gles2 and with_opengl))
  85     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  86   endif
  87 endif
  88
  89 # We require OpenGL for OpenGL ES
  90 if (with_gles1 or with_gles2) and not with_opengl
  91   error('building OpenGL ES without OpenGL is not supported.')
  92 endif
  93
  94 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  95
  96 _drivers = get_option('dri-drivers')
  97 if _drivers.contains('auto')
  98   if system_has_kms_drm
  99     # TODO: PPC, Sparc
 100     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 101       _drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 102     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 103       _drivers = []
 104     else
 105       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 106     endif
 107   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 108     # only swrast would make sense here, but gallium swrast is a much better default
 109     _drivers = []
 110   else
 111     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 112   endif
 113 endif
 114
 115 with_dri_i915 = _drivers.contains('i915')
 116 with_dri_i965 = _drivers.contains('i965')
 117 with_dri_r100 = _drivers.contains('r100')
 118 with_dri_r200 = _drivers.contains('r200')
 119 with_dri_nouveau = _drivers.contains('nouveau')
 120 with_dri_swrast = _drivers.contains('swrast')
 121
 122 with_dri = _drivers.length() != 0 and _drivers != ['']
 123
 124 _drivers = get_option('gallium-drivers')
 125 if _drivers.contains('auto')
 126   if system_has_kms_drm
 127     # TODO: PPC, Sparc
 128     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 129       _drivers = [
 130         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast'
 131       ]
 132     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 133       _drivers = [
 134         'pl111', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'imx', 'nouveau',
 135         'tegra', 'virgl', 'swrast',
 136       ]
 137     else
 138       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 139     endif
 140   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 141     _drivers = ['swrast']
 142   else
 143     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 144   endif
 145 endif
 146 with_gallium_pl111 = _drivers.contains('pl111')
 147 with_gallium_radeonsi = _drivers.contains('radeonsi')
 148 with_gallium_r300 = _drivers.contains('r300')
 149 with_gallium_r600 = _drivers.contains('r600')
 150 with_gallium_nouveau = _drivers.contains('nouveau')
 151 with_gallium_freedreno = _drivers.contains('freedreno')
 152 with_gallium_softpipe = _drivers.contains('swrast')
 153 with_gallium_vc4 = _drivers.contains('vc4')
 154 with_gallium_v3d = _drivers.contains('v3d')
 155 with_gallium_etnaviv = _drivers.contains('etnaviv')
 156 with_gallium_imx = _drivers.contains('imx')
 157 with_gallium_tegra = _drivers.contains('tegra')
 158 with_gallium_i915 = _drivers.contains('i915')
 159 with_gallium_svga = _drivers.contains('svga')
 160 with_gallium_virgl = _drivers.contains('virgl')
 161 with_gallium_swr = _drivers.contains('swr')
 162
 163 with_gallium = _drivers.length() != 0 and _drivers != ['']
 164
 165 if with_gallium and system_has_kms_drm
 166   _glx = get_option('glx')
 167   _egl = get_option('egl')
 168   if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 169     with_dri = true
 170   endif
 171 endif
 172
 173 _vulkan_drivers = get_option('vulkan-drivers')
 174 if _vulkan_drivers.contains('auto')
 175   if system_has_kms_drm
 176     if host_machine.cpu_family().startswith('x86')
 177       _vulkan_drivers = ['amd', 'intel']
 178     else
 179       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 180     endif
 181   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 182     # No vulkan driver supports windows or macOS currently
 183     _vulkan_drivers = []
 184   else
 185     error('Unknown OS. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 186   endif
 187 endif
 188
 189 with_intel_vk = _vulkan_drivers.contains('intel')
 190 with_amd_vk = _vulkan_drivers.contains('amd')
 191 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 192
 193 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 194   error('Only one swrast provider can be built')
 195 endif
 196 if with_dri_i915 and with_gallium_i915
 197   error('Only one i915 provider can be built')
 198 endif
 199 if with_gallium_imx and not with_gallium_etnaviv
 200   error('IMX driver requires etnaviv driver')
 201 endif
 202 if with_gallium_pl111 and not with_gallium_vc4
 203   error('pl111 driver requires vc4 driver')
 204 endif
 205 if with_gallium_tegra and not with_gallium_nouveau
 206   error('tegra driver requires nouveau driver')
 207 endif
 208
 209 if host_machine.system() == 'darwin'
 210   with_dri_platform = 'apple'
 211 elif ['windows', 'cygwin'].contains(host_machine.system())
 212   with_dri_platform = 'windows'
 213 elif system_has_kms_drm
 214   with_dri_platform = 'drm'
 215 else
 216   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 217   # assert here that one of those cases has been met.
 218   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 219   # support Hurd at time of writing (2017/11)
 220   # FIXME: illumos ends up here as well
 221   with_dri_platform = 'none'
 222 endif
 223
 224 _platforms = get_option('platforms')
 225 if _platforms.contains('auto')
 226   if system_has_kms_drm
 227     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 228   elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
 229     _platforms = ['x11', 'surfaceless']
 230   elif ['haiku'].contains(host_machine.system())
 231     _platforms = ['haiku']
 232   else
 233     error('Unknown OS. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.')
 234   endif
 235 endif
 236
 237 with_platform_android = _platforms.contains('android')
 238 with_platform_x11 = _platforms.contains('x11')
 239 with_platform_wayland = _platforms.contains('wayland')
 240 with_platform_drm = _platforms.contains('drm')
 241 with_platform_haiku = _platforms.contains('haiku')
 242 with_platform_surfaceless = _platforms.contains('surfaceless')
 243
 244 with_platforms = false
 245 if _platforms.length() != 0 and _platforms != ['']
 246   with_platforms = true
 247   egl_native_platform = _platforms[0]
 248 endif
 249
 250 _xlib_lease = get_option('xlib-lease')
 251 if _xlib_lease == 'auto'
 252   with_xlib_lease = with_platform_x11 and with_platform_drm
 253 else
 254   with_xlib_lease = _xlib_lease == 'true'
 255 endif
 256
 257 with_glx = get_option('glx')
 258 if with_glx == 'auto'
 259   if with_dri
 260     with_glx = 'dri'
 261   elif with_platform_haiku
 262     with_glx = 'disabled'
 263   elif with_gallium
 264     # Even when building just gallium drivers the user probably wants dri
 265     with_glx = 'dri'
 266     with_dri = true
 267   elif with_platform_x11 and with_any_opengl and not with_any_vk
 268     # The automatic behavior should not be to turn on xlib based glx when
 269     # building only vulkan drivers
 270     with_glx = 'xlib'
 271   else
 272     with_glx = 'disabled'
 273   endif
 274 endif
 275
 276 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 277   with_gles1 = false
 278   with_gles2 = false
 279   with_opengl = false
 280   with_any_opengl = false
 281   with_shared_glapi = false
 282 endif
 283
 284 _gbm = get_option('gbm')
 285 if _gbm == 'auto'
 286   with_gbm = system_has_kms_drm and with_dri
 287 else
 288   with_gbm = _gbm == 'true'
 289 endif
 290 if with_gbm and not system_has_kms_drm
 291   error('GBM only supports DRM/KMS platforms')
 292 endif
 293
 294 _egl = get_option('egl')
 295 if _egl == 'auto'
 296   with_egl = with_dri and with_shared_glapi and with_platforms
 297 elif _egl == 'true'
 298   if not with_dri
 299     error('EGL requires dri')
 300   elif not with_shared_glapi
 301     error('EGL requires shared-glapi')
 302   elif not with_platforms
 303     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 304   elif not ['disabled', 'dri'].contains(with_glx)
 305     error('EGL requires dri, but a GLX is being built without dri')
 306   endif
 307   with_egl = true
 308 else
 309   with_egl = false
 310 endif
 311
 312 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 313   if with_gallium_radeonsi
 314     error('RadeonSI requires drm or surfaceless platform when using EGL')
 315   endif
 316   if with_gallium_virgl
 317     error('Virgl requires drm or surfaceless platform when using EGL')
 318   endif
 319 endif
 320
 321 pre_args += '-DGLX_USE_TLS'
 322 if with_glx != 'disabled'
 323   if not (with_platform_x11 and with_any_opengl)
 324     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 325   elif with_glx == 'gallium-xlib'
 326     if not with_gallium
 327       error('Gallium-xlib based GLX requires at least one gallium driver')
 328     elif not with_gallium_softpipe
 329       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 330     elif with_dri
 331       error('gallium-xlib conflicts with any dri driver')
 332     endif
 333   elif with_glx == 'xlib'
 334     if with_dri
 335       error('xlib conflicts with any dri driver')
 336     endif
 337   elif with_glx == 'dri'
 338     if not with_dri
 339       error('dri based GLX requires at least one DRI driver')
 340     elif not with_shared_glapi
 341       error('dri based GLX requires shared-glapi')
 342     endif
 343   endif
 344 endif
 345
 346 with_glvnd = get_option('glvnd')
 347 if with_glvnd
 348   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 349     error('Cannot build glvnd support for GLX that is not DRI based.')
 350   elif with_glx == 'disabled' and not with_egl
 351     error('glvnd requires DRI based GLX and/or EGL')
 352   endif
 353 endif
 354
 355 # TODO: toggle for this
 356 with_glx_direct = true
 357
 358 if with_vulkan_icd_dir == ''
 359   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 360 endif
 361
 362 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 363 _dri3 = get_option('dri3')
 364 if _dri3 == 'auto'
 365   with_dri3 = system_has_kms_drm and with_dri2
 366 else
 367   with_dri3 = _dri3 == 'true'
 368 endif
 369
 370 if with_any_vk and (with_platform_x11 and not with_dri3)
 371   error('Vulkan drivers require dri3 for X11 support')
 372 endif
 373 if with_dri or with_gallium
 374   if with_glx == 'disabled' and not with_egl and not with_platform_haiku
 375     error('building dri or gallium drivers require at least one window system')
 376   endif
 377 endif
 378
 379 prog_pkgconfig = find_program('pkg-config')
 380
 381 _vdpau = get_option('gallium-vdpau')
 382 if not system_has_kms_drm
 383   if _vdpau == 'true'
 384     error('VDPAU state tracker can only be build on unix-like OSes.')
 385   else
 386     _vdpau = 'false'
 387   endif
 388 elif not with_platform_x11
 389   if _vdpau == 'true'
 390     error('VDPAU state tracker requires X11 support.')
 391   else
 392     _vdpau = 'false'
 393   endif
 394 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 395           with_gallium_nouveau)
 396   if _vdpau == 'true'
 397     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 398   else
 399     _vdpau = 'false'
 400   endif
 401 elif _vdpau == 'auto'
 402   _vdpau = 'true'
 403 endif
 404 with_gallium_vdpau = _vdpau == 'true'
 405 dep_vdpau = null_dep
 406 if with_gallium_vdpau
 407   dep_vdpau = dependency('vdpau', version : '>= 1.1')
 408   dep_vdpau = declare_dependency(
 409     compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 410   )
 411 endif
 412
 413 if with_gallium_vdpau
 414   pre_args += '-DHAVE_ST_VDPAU'
 415 endif
 416 vdpau_drivers_path = get_option('vdpau-libs-path')
 417 if vdpau_drivers_path == ''
 418   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 419 endif
 420
 421 _xvmc = get_option('gallium-xvmc')
 422 if not system_has_kms_drm
 423   if _xvmc == 'true'
 424     error('XVMC state tracker can only be build on unix-like OSes.')
 425   else
 426     _xvmc = 'false'
 427   endif
 428 elif not with_platform_x11
 429   if _xvmc == 'true'
 430     error('XVMC state tracker requires X11 support.')
 431   else
 432     _xvmc = 'false'
 433   endif
 434 elif not (with_gallium_r600 or with_gallium_nouveau)
 435   if _xvmc == 'true'
 436     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 437   else
 438     _xvmc = 'false'
 439   endif
 440 elif _xvmc == 'auto'
 441   _xvmc = 'true'
 442 endif
 443 with_gallium_xvmc = _xvmc == 'true'
 444 dep_xvmc = null_dep
 445 if with_gallium_xvmc
 446   dep_xvmc = dependency('xvmc', version : '>= 1.0.6')
 447 endif
 448
 449 xvmc_drivers_path = get_option('xvmc-libs-path')
 450 if xvmc_drivers_path == ''
 451   xvmc_drivers_path = get_option('libdir')
 452 endif
 453
 454 _omx = get_option('gallium-omx')
 455 if not system_has_kms_drm
 456   if ['auto', 'disabled'].contains(_omx)
 457     _omx = 'disabled'
 458   else
 459     error('OMX state tracker can only be built on unix-like OSes.')
 460   endif
 461 elif not (with_platform_x11 or with_platform_drm)
 462   if ['auto', 'disabled'].contains(_omx)
 463     _omx = 'disabled'
 464   else
 465     error('OMX state tracker requires X11 or drm platform support.')
 466   endif
 467 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 468   if ['auto', 'disabled'].contains(_omx)
 469     _omx = 'disabled'
 470   else
 471     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 472   endif
 473 endif
 474 with_gallium_omx = _omx
 475 dep_omx = null_dep
 476 dep_omx_other = []
 477 if ['auto', 'bellagio'].contains(_omx)
 478   dep_omx = dependency(
 479     'libomxil-bellagio', required : _omx == 'bellagio'
 480   )
 481   if dep_omx.found()
 482     with_gallium_omx = 'bellagio'
 483   endif
 484 endif
 485 if ['auto', 'tizonia'].contains(_omx)
 486   if with_dri and with_egl
 487     dep_omx = dependency(
 488       'libtizonia', version : '>= 0.10.0',
 489       required : _omx == 'tizonia',
 490     )
 491     dep_omx_other = [
 492       dependency('libtizplatform', required : _omx == 'tizonia'),
 493       dependency('tizilheaders', required : _omx == 'tizonia'),
 494     ]
 495     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 496       with_gallium_omx = 'tizonia'
 497     endif
 498   elif _omx == 'tizonia'
 499     error('OMX-Tizonia state tracker requires dri and egl')
 500   endif
 501 endif
 502 if _omx == 'auto'
 503   with_gallium_omx = 'disabled'
 504 else
 505   with_gallium_omx = _omx
 506 endif
 507
 508 pre_args += [
 509   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 510   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 511 ]
 512
 513
 514 omx_drivers_path = get_option('omx-libs-path')
 515
 516 if with_gallium_omx != 'disabled'
 517   # Figure out where to put the omx driver.
 518   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 519   # argument to meson's get_pkgconfig_variable method.
 520   if omx_drivers_path == ''
 521     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 522     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 523     if _omx_libdir == get_option('libdir')
 524       omx_drivers_path = _omx_drivers_dir
 525     else
 526       _omx_base_dir = []
 527       # This will fail on windows. Does OMX run on windows?
 528       _omx_libdir = _omx_libdir.split('/')
 529       _omx_drivers_dir = _omx_drivers_dir.split('/')
 530       foreach o : _omx_drivers_dir
 531         if not _omx_libdir.contains(o)
 532           _omx_base_dir += o
 533         endif
 534       endforeach
 535       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 536     endif
 537   endif
 538 endif
 539
 540 _va = get_option('gallium-va')
 541 if not system_has_kms_drm
 542   if _va == 'true'
 543     error('VA state tracker can only be built on unix-like OSes.')
 544   else
 545     _va = 'false'
 546   endif
 547 elif not (with_platform_x11 or with_platform_drm)
 548   if _va == 'true'
 549     error('VA state tracker requires X11 or drm or wayland platform support.')
 550   else
 551     _va = 'false'
 552   endif
 553 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 554   if _va == 'true'
 555     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 556   else
 557     _va = 'false'
 558   endif
 559 elif _va == 'auto'
 560   _va = 'true'
 561 endif
 562 with_gallium_va = _va == 'true'
 563 dep_va = null_dep
 564 if with_gallium_va
 565   dep_va = dependency('libva', version : '>= 0.39.0')
 566   dep_va_headers = declare_dependency(
 567     compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 568   )
 569 endif
 570
 571 va_drivers_path = get_option('va-libs-path')
 572 if va_drivers_path == ''
 573   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 574 endif
 575
 576 _xa = get_option('gallium-xa')
 577 if not system_has_kms_drm
 578   if _xa == 'true'
 579     error('XA state tracker can only be built on unix-like OSes.')
 580   else
 581     _xa = 'false'
 582   endif
 583 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 584           or with_gallium_svga)
 585   if _xa == 'true'
 586     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 587   else
 588     _xa = 'false'
 589   endif
 590 endif
 591 with_gallium_xa = _xa != 'false'
 592
 593 d3d_drivers_path = get_option('d3d-drivers-path')
 594 if d3d_drivers_path == ''
 595   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 596 endif
 597
 598 with_gallium_st_nine =  get_option('gallium-nine')
 599 if with_gallium_st_nine
 600   if not with_gallium_softpipe
 601     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 602   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 603             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 604     error('The nine state tracker requires at least on non-swrast gallium driver.')
 605   endif
 606   if not with_dri3
 607     error('Using nine with wine requires dri3')
 608   endif
 609 endif
 610
 611 if get_option('power8') != 'false'
 612   if host_machine.cpu_family() == 'ppc64le'
 613     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 614       error('Altivec is not supported with gcc version < 4.8.')
 615     endif
 616     if cc.compiles('''
 617         #include <altivec.h>
 618         int main() {
 619           vector unsigned char r;
 620           vector unsigned int v = vec_splat_u32 (1);
 621           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 622           return 0;
 623         }''',
 624         args : '-mpower8-vector',
 625         name : 'POWER8 intrinsics')
 626       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 627     elif get_option('power8') == 'true'
 628       error('POWER8 intrinsic support required but not found.')
 629     endif
 630   endif
 631 endif
 632
 633 _opencl = get_option('gallium-opencl')
 634 if _opencl != 'disabled'
 635   if not with_gallium
 636     error('OpenCL Clover implementation requires at least one gallium driver.')
 637   endif
 638
 639   dep_clc = dependency('libclc')
 640   with_gallium_opencl = true
 641   with_opencl_icd = _opencl == 'icd'
 642 else
 643   dep_clc = null_dep
 644   with_gallium_opencl = false
 645   with_gallium_icd = false
 646 endif
 647
 648 gl_pkgconfig_c_flags = []
 649 if with_platform_x11
 650   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 651     pre_args += '-DHAVE_X11_PLATFORM'
 652   endif
 653   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 654     pre_args += '-DUSE_XSHM'
 655   else
 656     pre_args += '-DGLX_INDIRECT_RENDERING'
 657     if with_glx_direct
 658       pre_args += '-DGLX_DIRECT_RENDERING'
 659     endif
 660     if with_dri_platform == 'drm'
 661       pre_args += '-DGLX_USE_DRM'
 662     elif with_dri_platform == 'apple'
 663       pre_args += '-DGLX_USE_APPLEGL'
 664     elif with_dri_platform == 'windows'
 665       pre_args += '-DGLX_USE_WINDOWSGL'
 666     endif
 667   endif
 668 else
 669   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 670   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 671 endif
 672 if with_platform_drm
 673   if with_egl and not with_gbm
 674     error('EGL drm platform requires gbm')
 675   endif
 676   pre_args += '-DHAVE_DRM_PLATFORM'
 677 endif
 678 if with_platform_surfaceless
 679   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 680 endif
 681 if with_platform_android
 682   dep_android = [
 683     dependency('cutils'),
 684     dependency('hardware'),
 685     dependency('sync'),
 686   ]
 687   pre_args += '-DHAVE_ANDROID_PLATFORM'
 688 endif
 689 if with_platform_haiku
 690   pre_args += '-DHAVE_HAIKU_PLATFORM'
 691 endif
 692
 693 prog_python2 = find_program('python2')
 694 has_mako = run_command(prog_python2, '-c', 'import mako')
 695 if has_mako.returncode() != 0
 696   error('Python (2.x) mako module required to build mesa.')
 697 endif
 698
 699 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 700   error('When using GCC, version 4.4.6 or later is required.')
 701 endif
 702
 703 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 704 if get_option('buildtype') == 'debug'
 705   pre_args += '-DDEBUG'
 706 endif
 707
 708 if get_option('shader-cache')
 709   pre_args += '-DENABLE_SHADER_CACHE'
 710 elif with_amd_vk
 711   error('Radv requires shader cache support')
 712 endif
 713
 714 # Check for GCC style builtins
 715 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 716              'ffsll', 'popcount', 'popcountll', 'unreachable']
 717   if cc.has_function(b)
 718     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 719   endif
 720 endforeach
 721
 722 # check for GCC __attribute__
 723 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 724              'warn_unused_result', 'weak',]
 725   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 726                  name : '__attribute__((@0@))'.format(a))
 727     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 728   endif
 729 endforeach
 730 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 731                name : '__attribute__((format(...)))')
 732   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 733 endif
 734 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 735                name : '__attribute__((packed))')
 736   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 737 endif
 738 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 739                name : '__attribute__((returns_nonnull))')
 740   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 741 endif
 742 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 743                   int foo_hid(void) __attribute__((visibility("hidden")));
 744                   int foo_int(void) __attribute__((visibility("internal")));
 745                   int foo_pro(void) __attribute__((visibility("protected")));''',
 746                name : '__attribute__((visibility(...)))')
 747   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 748 endif
 749 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 750                name : '__attribute__((alias(...)))')
 751   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 752 endif
 753 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 754                name : '__attribute__((__noreturn__))')
 755   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 756 endif
 757
 758 # TODO: this is very incomplete
 759 if ['linux', 'cygwin'].contains(host_machine.system())
 760   pre_args += '-D_GNU_SOURCE'
 761 endif
 762
 763 # Check for generic C arguments
 764 c_args = []
 765 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 766              '-Werror=missing-prototypes', '-fno-math-errno',
 767              '-fno-trapping-math', '-Qunused-arguments']
 768   if cc.has_argument(a)
 769     c_args += a
 770   endif
 771 endforeach
 772 if cc.has_argument('-Wmissing-field-initializers')
 773   c_args += '-Wno-missing-field-initializers'
 774 endif
 775
 776 c_vis_args = []
 777 if cc.has_argument('-fvisibility=hidden')
 778   c_vis_args += '-fvisibility=hidden'
 779 endif
 780
 781 # Check for generic C++ arguments
 782 cpp_args = []
 783 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 784              '-Qunused-arguments']
 785   if cpp.has_argument(a)
 786     cpp_args += a
 787   endif
 788 endforeach
 789
 790 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 791 # option is not supported. Hence, check for -Wfoo instead.
 792
 793 foreach a : ['non-virtual-dtor', 'missing-field-initializers']
 794   if cpp.has_argument('-W' + a)
 795     cpp_args += '-Wno-' + a
 796   endif
 797 endforeach
 798
 799 no_override_init_args = []
 800 foreach a : ['override-init', 'initializer-overrides']
 801   if cc.has_argument('-W' + a)
 802     no_override_init_args += '-Wno-' + a
 803   endif
 804 endforeach
 805
 806 cpp_vis_args = []
 807 if cpp.has_argument('-fvisibility=hidden')
 808   cpp_vis_args += '-fvisibility=hidden'
 809 endif
 810
 811 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 812 # in parts of the mesa code base that need to compile with old versions of
 813 # MSVC, mainly common code
 814 c_msvc_compat_args = []
 815 cpp_msvc_compat_args = []
 816 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 817   if cc.has_argument(a)
 818     c_msvc_compat_args += a
 819   endif
 820   if cpp.has_argument(a)
 821     cpp_msvc_compat_args += a
 822   endif
 823 endforeach
 824
 825 if host_machine.cpu_family().startswith('x86')
 826   pre_args += '-DUSE_SSE41'
 827   with_sse41 = true
 828   sse41_args = ['-msse4.1']
 829
 830   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 831   # that's not guaranteed
 832   if host_machine.cpu_family() == 'x86'
 833     sse41_args += '-mstackrealign'
 834   endif
 835 else
 836   with_sse41 = false
 837   sse41_args = []
 838 endif
 839
 840 # Check for GCC style atomics
 841 dep_atomic = null_dep
 842
 843 if cc.compiles('''#include <stdint.h>
 844                   int main() {
 845                     struct {
 846                       uint64_t *v;
 847                     } x;
 848                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 849                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 850
 851                   }''',
 852                name : 'GCC atomic builtins')
 853   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 854
 855   # Not all atomic calls can be turned into lock-free instructions, in which
 856   # GCC will make calls into the libatomic library. Check whether we need to
 857   # link with -latomic.
 858   #
 859   # This can happen for 64-bit atomic operations on 32-bit architectures such
 860   # as ARM.
 861   if not cc.links('''#include <stdint.h>
 862                      int main() {
 863                        struct {
 864                          uint64_t *v;
 865                        } x;
 866                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 867                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 868                      }''',
 869                   name : 'GCC atomic builtins required -latomic')
 870     dep_atomic = cc.find_library('atomic')
 871   endif
 872 endif
 873 if not cc.links('''#include <stdint.h>
 874                    uint64_t v;
 875                    int main() {
 876                      return __sync_add_and_fetch(&v, (uint64_t)1);
 877                    }''',
 878                 name : 'GCC 64bit atomics')
 879   pre_args += '-DMISSING_64_BIT_ATOMICS'
 880 endif
 881
 882 # TODO: shared/static? Is this even worth doing?
 883
 884 # When cross compiling we generally need to turn off the use of assembly,
 885 # because mesa's assembly relies on building an executable for the host system,
 886 # and running it to get information about struct sizes. There is at least one
 887 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 888 # host OS == build OS, since in that case the build machine can run the host's
 889 # binaries.
 890 if meson.is_cross_build()
 891   if build_machine.system() != host_machine.system()
 892     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 893     message('Cross compiling from one OS to another, disabling assembly.')
 894     with_asm = false
 895   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 896     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 897     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 898     # case.
 899     # TODO: There may be other cases where the 64 bit version of the
 900     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 901     message('''
 902       Cross compiling to different architectures, and the host cannot run
 903       the build machine's binaries. Disabling assembly.
 904     ''')
 905     with_asm = false
 906   endif
 907 endif
 908
 909 with_asm_arch = ''
 910 if with_asm
 911   if host_machine.cpu_family() == 'x86'
 912     if system_has_kms_drm
 913       with_asm_arch = 'x86'
 914       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 915                    '-DUSE_SSE_ASM']
 916
 917       if with_glx_read_only_text
 918          pre_args += ['-DGLX_X86_READONLY_TEXT']
 919       endif
 920     endif
 921   elif host_machine.cpu_family() == 'x86_64'
 922     if system_has_kms_drm
 923       with_asm_arch = 'x86_64'
 924       pre_args += ['-DUSE_X86_64_ASM']
 925     endif
 926   elif host_machine.cpu_family() == 'arm'
 927     if system_has_kms_drm
 928       with_asm_arch = 'arm'
 929       pre_args += ['-DUSE_ARM_ASM']
 930     endif
 931   elif host_machine.cpu_family() == 'aarch64'
 932     if system_has_kms_drm
 933       with_asm_arch = 'aarch64'
 934       pre_args += ['-DUSE_AARCH64_ASM']
 935     endif
 936   elif host_machine.cpu_family() == 'sparc64'
 937     if system_has_kms_drm
 938       with_asm_arch = 'sparc'
 939       pre_args += ['-DUSE_SPARC_ASM']
 940     endif
 941   elif host_machine.cpu_family() == 'ppc64le'
 942     if system_has_kms_drm
 943       with_asm_arch = 'ppc64le'
 944       pre_args += ['-DUSE_PPC64LE_ASM']
 945     endif
 946   endif
 947 endif
 948
 949 # Check for standard headers and functions
 950 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 951   pre_args += '-DMAJOR_IN_SYSMACROS'
 952 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 953   pre_args += '-DMAJOR_IN_MKDEV'
 954 endif
 955
 956 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h']
 957   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
 958     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 959   endif
 960 endforeach
 961
 962 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 963   if cc.has_function(f)
 964     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 965   endif
 966 endforeach
 967
 968 # strtod locale support
 969 if cc.links('''
 970     #define _GNU_SOURCE
 971     #include <stdlib.h>
 972     #include <locale.h>
 973     #ifdef HAVE_XLOCALE_H
 974     #include <xlocale.h>
 975     #endif
 976     int main() {
 977       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 978       const char *s = "1.0";
 979       char *end;
 980       double d = strtod_l(s, end, loc);
 981       float f = strtof_l(s, end, loc);
 982       freelocale(loc);
 983       return 0;
 984     }''',
 985     extra_args : pre_args,
 986     name : 'strtod has locale support')
 987   pre_args += '-DHAVE_STRTOD_L'
 988 endif
 989
 990 # Check for some linker flags
 991 ld_args_bsymbolic = []
 992 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 993   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 994 endif
 995 ld_args_gc_sections = []
 996 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 997             args : '-Wl,--gc-sections', name : 'gc-sections')
 998   ld_args_gc_sections += '-Wl,--gc-sections'
 999 endif
1000 with_ld_version_script = false
1001 if cc.links('int main() { return 0; }',
1002             args : '-Wl,--version-script=@0@'.format(
1003               join_paths(meson.source_root(), 'build-support/conftest.map')),
1004             name : 'version-script')
1005   with_ld_version_script = true
1006 endif
1007 with_ld_dynamic_list = false
1008 if cc.links('int main() { return 0; }',
1009             args : '-Wl,--dynamic-list=@0@'.format(
1010               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1011             name : 'dynamic-list')
1012   with_ld_dynamic_list = true
1013 endif
1014 ld_args_build_id = []
1015 if build_machine.system() != 'darwin'
1016    ld_args_build_id += '-Wl,--build-id=sha1'
1017 endif
1018
1019 # check for dl support
1020 if cc.has_function('dlopen')
1021   dep_dl = null_dep
1022 else
1023   dep_dl = cc.find_library('dl')
1024 endif
1025 if cc.has_function('dladdr', dependencies : dep_dl)
1026   # This is really only required for megadrivers
1027   pre_args += '-DHAVE_DLADDR'
1028 endif
1029
1030 if cc.has_function('dl_iterate_phdr')
1031   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1032 elif with_intel_vk
1033   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1034 elif with_dri_i965 and get_option('shader-cache')
1035   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1036 endif
1037
1038 # Determine whether or not the rt library is needed for time functions
1039 if cc.has_function('clock_gettime')
1040   dep_clock = null_dep
1041 else
1042   dep_clock = cc.find_library('rt')
1043 endif
1044
1045 # TODO: some of these may be conditional
1046 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1047 pre_args += '-DHAVE_ZLIB'
1048 dep_thread = dependency('threads')
1049 if dep_thread.found() and host_machine.system() != 'windows'
1050   pre_args += '-DHAVE_PTHREAD'
1051 endif
1052 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1053   dep_elf = dependency('libelf', required : false)
1054   if not dep_elf.found()
1055     dep_elf = cc.find_library('elf')
1056   endif
1057 else
1058   dep_elf = null_dep
1059 endif
1060 dep_expat = dependency('expat')
1061 # this only exists on linux so either this is linux and it will be found, or
1062 # its not linux and and wont
1063 dep_m = cc.find_library('m', required : false)
1064
1065 # Check for libdrm. various drivers have different libdrm version requirements,
1066 # but we always want to use the same version for all libdrm modules. That means
1067 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1068 # bar are both on use 2.4.3 for both of them
1069 dep_libdrm_amdgpu = null_dep
1070 dep_libdrm_radeon = null_dep
1071 dep_libdrm_nouveau = null_dep
1072 dep_libdrm_etnaviv = null_dep
1073 dep_libdrm_freedreno = null_dep
1074 dep_libdrm_intel = null_dep
1075
1076 _drm_amdgpu_ver = '2.4.91'
1077 _drm_radeon_ver = '2.4.71'
1078 _drm_nouveau_ver = '2.4.66'
1079 _drm_etnaviv_ver = '2.4.89'
1080 _drm_freedreno_ver = '2.4.92'
1081 _drm_intel_ver = '2.4.75'
1082 _drm_ver = '2.4.75'
1083
1084 _libdrm_checks = [
1085   ['intel', with_dri_i915 or with_gallium_i915],
1086   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1087   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1088               with_gallium_r300 or with_gallium_r600)],
1089   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1090   ['etnaviv', with_gallium_etnaviv],
1091   ['freedreno', with_gallium_freedreno],
1092 ]
1093
1094 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1095 # library.
1096 if with_gallium_vc4
1097   _drm_ver = '2.4.89'
1098 endif
1099
1100 # Loop over the enables versions and get the highest libdrm requirement for all
1101 # active drivers.
1102 foreach d : _libdrm_checks
1103   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1104   if d[1] and ver.version_compare('>' + _drm_ver)
1105     _drm_ver = ver
1106   endif
1107 endforeach
1108
1109 # Then get each libdrm module
1110 foreach d : _libdrm_checks
1111   if d[1]
1112     set_variable(
1113       'dep_libdrm_' + d[0],
1114       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1115     )
1116   endif
1117 endforeach
1118
1119 with_gallium_drisw_kms = false
1120 dep_libdrm = dependency(
1121   'libdrm', version : '>=' + _drm_ver,
1122   required : with_dri2 or with_dri3
1123 )
1124 if dep_libdrm.found()
1125   pre_args += '-DHAVE_LIBDRM'
1126   if with_dri_platform == 'drm' and with_dri
1127     with_gallium_drisw_kms = true
1128   endif
1129 endif
1130
1131 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1132 llvm_optional_modules = []
1133 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1134   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1135   if with_gallium_r600
1136     llvm_modules += 'asmparser'
1137   endif
1138 endif
1139 if with_gallium_opencl
1140   llvm_modules += [
1141     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1142     'lto', 'option', 'objcarcopts', 'profiledata',
1143   ]
1144   llvm_optional_modules += ['coroutines', 'opencl']
1145 endif
1146
1147 if with_amd_vk or with_gallium_radeonsi
1148   _llvm_version = '>= 5.0.0'
1149 elif with_gallium_swr
1150   _llvm_version = '>= 4.0.0'
1151 elif with_gallium_opencl or with_gallium_r600
1152   _llvm_version = '>= 3.9.0'
1153 else
1154   _llvm_version = '>= 3.3.0'
1155 endif
1156
1157 _llvm = get_option('llvm')
1158 if _llvm == 'auto'
1159   dep_llvm = dependency(
1160     'llvm',
1161     version : _llvm_version,
1162     modules : llvm_modules,
1163     optional_modules : llvm_optional_modules,
1164     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1165   )
1166   with_llvm = dep_llvm.found()
1167 elif _llvm == 'true'
1168   dep_llvm = dependency(
1169     'llvm',
1170     version : _llvm_version,
1171     modules : llvm_modules,
1172     optional_modules : llvm_optional_modules,
1173   )
1174   with_llvm = true
1175 else
1176   dep_llvm = null_dep
1177   with_llvm = false
1178 endif
1179 if with_llvm
1180   _llvm_version = dep_llvm.version().split('.')
1181   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1182   # that for our version checks.
1183   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1184   # strippped as of 0.44, but we support older meson versions.
1185
1186   # 3 digits versions in LLVM only started from 3.4.1 on
1187   if dep_llvm.version().version_compare('>= 3.4.1')
1188     _llvm_patch = _llvm_version[2]
1189   else
1190     _llvm_patch = '0'
1191   endif
1192
1193   if _llvm_patch.endswith('svn')
1194     _llvm_patch = _llvm_patch.split('s')[0]
1195   elif _llvm_patch.contains('git')
1196     _llvm_patch = _llvm_patch.split('g')[0]
1197   endif
1198   pre_args += [
1199     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1200     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1201   ]
1202
1203   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1204   # programs, so we need to build all C++ code in mesa without rtti as well to
1205   # ensure that linking works.
1206   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1207     cpp_args += '-fno-rtti'
1208   endif
1209 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1210   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1211 endif
1212
1213 dep_glvnd = null_dep
1214 if with_glvnd
1215   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1216   pre_args += '-DUSE_LIBGLVND=1'
1217 endif
1218
1219 if with_valgrind != 'false'
1220   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1221   if dep_valgrind.found()
1222     pre_args += '-DHAVE_VALGRIND'
1223   endif
1224 else
1225   dep_valgrind = null_dep
1226 endif
1227
1228 # pthread stubs. Lets not and say we didn't
1229
1230 prog_bison = find_program('bison', required : with_any_opengl)
1231 prog_flex = find_program('flex', required : with_any_opengl)
1232
1233 dep_selinux = null_dep
1234 if get_option('selinux')
1235   dep_selinux = dependency('libselinux')
1236   pre_args += '-DMESA_SELINUX'
1237 endif
1238
1239 if with_libunwind != 'false'
1240   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1241   if dep_unwind.found()
1242     pre_args += '-DHAVE_LIBUNWIND'
1243   endif
1244 else
1245   dep_unwind = null_dep
1246 endif
1247
1248 if with_osmesa != 'none'
1249   if with_osmesa == 'classic' and not with_dri_swrast
1250     error('OSMesa classic requires dri (classic) swrast.')
1251   endif
1252   if with_osmesa == 'gallium' and not with_gallium_softpipe
1253     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1254   endif
1255   osmesa_lib_name = 'OSMesa'
1256   osmesa_bits = get_option('osmesa-bits')
1257   if osmesa_bits != '8'
1258     if with_dri or with_glx != 'disabled'
1259       error('OSMesa bits must be 8 if building glx or dir based drivers')
1260     endif
1261     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1262     pre_args += [
1263       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1264     ]
1265   endif
1266 endif
1267
1268 # TODO: symbol mangling
1269
1270 if with_platform_wayland
1271   prog_wl_scanner = find_program('wayland-scanner')
1272   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1273   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1274   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1275   if with_egl
1276     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1277     dep_wayland_egl_headers = declare_dependency(
1278       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1279   endif
1280   wayland_dmabuf_xml = join_paths(
1281     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1282     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1283   )
1284   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1285 else
1286   prog_wl_scanner = []
1287   dep_wl_protocols = null_dep
1288   dep_wayland_client = null_dep
1289   dep_wayland_server = null_dep
1290   wayland_dmabuf_xml = ''
1291 endif
1292
1293 dep_x11 = null_dep
1294 dep_xext = null_dep
1295 dep_xdamage = null_dep
1296 dep_xfixes = null_dep
1297 dep_x11_xcb = null_dep
1298 dep_xcb = null_dep
1299 dep_xcb_glx = null_dep
1300 dep_xcb_dri2 = null_dep
1301 dep_xcb_dri3 = null_dep
1302 dep_dri2proto = null_dep
1303 dep_glproto = null_dep
1304 dep_xxf86vm = null_dep
1305 dep_xcb_dri3 = null_dep
1306 dep_xcb_present = null_dep
1307 dep_xcb_sync = null_dep
1308 dep_xcb_xfixes = null_dep
1309 dep_xshmfence = null_dep
1310 dep_xcb_xrandr = null_dep
1311 dep_xlib_xrandr = null_dep
1312 if with_platform_x11
1313   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1314     dep_x11 = dependency('x11')
1315     dep_xext = dependency('xext')
1316     dep_xcb = dependency('xcb')
1317   elif with_glx == 'dri'
1318     dep_x11 = dependency('x11')
1319     dep_xext = dependency('xext')
1320     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1321     dep_xfixes = dependency('xfixes')
1322     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1323     dep_xxf86vm = dependency('xxf86vm', required : false)
1324   endif
1325   if (with_any_vk or with_glx == 'dri' or
1326        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1327         with_gallium_omx != 'disabled'))
1328     dep_xcb = dependency('xcb')
1329     dep_x11_xcb = dependency('x11-xcb')
1330   endif
1331   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1332     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1333
1334     if with_dri3
1335       pre_args += '-DHAVE_DRI3'
1336       dep_xcb_dri3 = dependency('xcb-dri3')
1337       dep_xcb_present = dependency('xcb-present')
1338       # until xcb-dri3 has been around long enough to make a hard-dependency:
1339       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1340           dep_xcb_present.version().version_compare('>= 1.13'))
1341         pre_args += '-DHAVE_DRI3_MODIFIERS'
1342       endif
1343       dep_xcb_sync = dependency('xcb-sync')
1344       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1345     endif
1346   endif
1347   if with_glx == 'dri'
1348     if with_dri_platform == 'drm'
1349       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1350     endif
1351     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1352   endif
1353   if (with_egl or (
1354       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1355       with_gallium_omx != 'disabled'))
1356     dep_xcb_xfixes = dependency('xcb-xfixes')
1357   endif
1358   if with_xlib_lease
1359     dep_xcb_xrandr = dependency('xcb-randr', version : '>= 1.12')
1360     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1361   endif
1362 endif
1363
1364 if get_option('gallium-extra-hud')
1365   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1366 endif
1367
1368 _sensors = get_option('lmsensors')
1369 if _sensors != 'false'
1370   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1371   if dep_lmsensors.found()
1372     pre_args += '-DHAVE_LIBSENSORS=1'
1373   endif
1374 else
1375   dep_lmsensors = null_dep
1376 endif
1377
1378 foreach a : pre_args
1379   add_project_arguments(a, language : ['c', 'cpp'])
1380 endforeach
1381 foreach a : c_args
1382   add_project_arguments(a, language : ['c'])
1383 endforeach
1384 foreach a : cpp_args
1385   add_project_arguments(a, language : ['cpp'])
1386 endforeach
1387
1388 inc_include = include_directories('include')
1389
1390 gl_priv_reqs = []
1391
1392 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1393   gl_priv_reqs += ['x11', 'xext', 'xcb']
1394 elif with_glx == 'dri'
1395   gl_priv_reqs += [
1396     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1397     'xcb-glx >= 1.8.1']
1398   if with_dri_platform == 'drm'
1399     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1400   endif
1401 endif
1402 if dep_libdrm.found()
1403   gl_priv_reqs += 'libdrm >= 2.4.75'
1404 endif
1405 if dep_xxf86vm.found()
1406   gl_priv_reqs += 'xxf86vm'
1407 endif
1408
1409 gl_priv_libs = []
1410 if dep_thread.found()
1411   gl_priv_libs += ['-lpthread', '-pthread']
1412 endif
1413 if dep_m.found()
1414   gl_priv_libs += '-lm'
1415 endif
1416 if dep_dl.found()
1417   gl_priv_libs += '-ldl'
1418 endif
1419
1420 pkg = import('pkgconfig')
1421
1422 env_test = environment()
1423 env_test.set('NM', find_program('nm').path())
1424
1425 subdir('include')
1426 subdir('bin')
1427 subdir('src')