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