meson.build

   1 # Copyright © 2017-2019 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.45',
  29   default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', '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 # Arguments for the preprocessor, put these in a separate array from the C and
  38 # C++ (cpp in meson terminology) arguments since they need to be added to the
  39 # default arguments for both C and C++.
  40 pre_args = [
  41   '-D__STDC_CONSTANT_MACROS',
  42   '-D__STDC_FORMAT_MACROS',
  43   '-D__STDC_LIMIT_MACROS',
  44   '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
  45   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  46 ]
  47
  48 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  49 with_tests = get_option('build-tests')
  50 with_valgrind = get_option('valgrind')
  51 with_libunwind = get_option('libunwind')
  52 with_asm = get_option('asm')
  53 with_glx_read_only_text = get_option('glx-read-only-text')
  54 with_glx_direct = get_option('glx-direct')
  55 with_osmesa = get_option('osmesa')
  56 with_swr_arches = get_option('swr-arches')
  57 with_tools = get_option('tools')
  58 if with_tools.contains('all')
  59   with_tools = ['etnaviv', 'freedreno', 'glsl', 'intel', 'nir', 'nouveau', 'xvmc']
  60 endif
  61
  62 dri_drivers_path = get_option('dri-drivers-path')
  63 if dri_drivers_path == ''
  64   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  65 endif
  66 dri_search_path = get_option('dri-search-path')
  67 if dri_search_path == ''
  68   dri_search_path = dri_drivers_path
  69 endif
  70
  71 with_gles1 = get_option('gles1')
  72 with_gles2 = get_option('gles2')
  73 with_opengl = get_option('opengl')
  74 with_any_opengl = with_opengl or with_gles1 or with_gles2
  75 # Only build shared_glapi if at least one OpenGL API is enabled
  76 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  77
  78
  79 # shared-glapi is required if at least two OpenGL APIs are being built
  80 if not with_shared_glapi
  81   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  82       or (with_gles2 and with_opengl))
  83     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  84   endif
  85 endif
  86
  87 # We require OpenGL for OpenGL ES
  88 if (with_gles1 or with_gles2) and not with_opengl
  89   error('building OpenGL ES without OpenGL is not supported.')
  90 endif
  91
  92 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  93
  94 _drivers = get_option('dri-drivers')
  95 if _drivers.contains('auto')
  96   if system_has_kms_drm
  97     # TODO: PPC, Sparc
  98     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
  99       _drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 100     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 101       _drivers = []
 102     else
 103       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 104             host_machine.cpu_family()))
 105     endif
 106   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 107     # only swrast would make sense here, but gallium swrast is a much better default
 108     _drivers = []
 109   else
 110     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 111           host_machine.system()))
 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         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 135         'tegra', 'virgl', 'swrast'
 136       ]
 137     else
 138       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 139             host_machine.cpu_family()))
 140     endif
 141   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 142     _drivers = ['swrast']
 143   else
 144     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 145           host_machine.system()))
 146   endif
 147 endif
 148 with_gallium_kmsro = _drivers.contains('kmsro')
 149 with_gallium_radeonsi = _drivers.contains('radeonsi')
 150 with_gallium_r300 = _drivers.contains('r300')
 151 with_gallium_r600 = _drivers.contains('r600')
 152 with_gallium_nouveau = _drivers.contains('nouveau')
 153 with_gallium_freedreno = _drivers.contains('freedreno')
 154 with_gallium_softpipe = _drivers.contains('swrast')
 155 with_gallium_vc4 = _drivers.contains('vc4')
 156 with_gallium_v3d = _drivers.contains('v3d')
 157 with_gallium_panfrost = _drivers.contains('panfrost')
 158 with_gallium_etnaviv = _drivers.contains('etnaviv')
 159 with_gallium_tegra = _drivers.contains('tegra')
 160 with_gallium_iris = _drivers.contains('iris')
 161 with_gallium_i915 = _drivers.contains('i915')
 162 with_gallium_svga = _drivers.contains('svga')
 163 with_gallium_virgl = _drivers.contains('virgl')
 164 with_gallium_swr = _drivers.contains('swr')
 165
 166 if cc.get_id() == 'intel'
 167   if meson.version().version_compare('< 0.49.0')
 168     error('Meson does not have sufficient support of ICC before 0.49.0 to compile mesa')
 169   elif with_gallium_swr and meson.version().version_compare('== 0.49.0')
 170     warning('Meson as of 0.49.0 is sufficient for compiling mesa with ICC, but there are some caveats with SWR. 0.49.1 should resolve all of these')
 171   endif
 172 endif
 173
 174 with_gallium = _drivers.length() != 0 and _drivers != ['']
 175
 176 if with_gallium and system_has_kms_drm
 177   _glx = get_option('glx')
 178   _egl = get_option('egl')
 179   if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 180     with_dri = true
 181   endif
 182 endif
 183
 184 _vulkan_drivers = get_option('vulkan-drivers')
 185 if _vulkan_drivers.contains('auto')
 186   if system_has_kms_drm
 187     if host_machine.cpu_family().startswith('x86')
 188       _vulkan_drivers = ['amd', 'intel']
 189     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 190       _vulkan_drivers = []
 191     else
 192       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 193             host_machine.cpu_family()))
 194     endif
 195   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 196     # No vulkan driver supports windows or macOS currently
 197     _vulkan_drivers = []
 198   else
 199     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 200           host_machine.system()))
 201   endif
 202 endif
 203
 204 with_intel_vk = _vulkan_drivers.contains('intel')
 205 with_amd_vk = _vulkan_drivers.contains('amd')
 206 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 207 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 208
 209 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 210   error('Only one swrast provider can be built')
 211 endif
 212 if with_dri_i915 and with_gallium_i915
 213   error('Only one i915 provider can be built')
 214 endif
 215 if with_gallium_kmsro and not (with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost)
 216   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost)')
 217 endif
 218 if with_gallium_tegra and not with_gallium_nouveau
 219   error('tegra driver requires nouveau driver')
 220 endif
 221
 222 if host_machine.system() == 'darwin'
 223   with_dri_platform = 'apple'
 224 elif ['windows', 'cygwin'].contains(host_machine.system())
 225   with_dri_platform = 'windows'
 226 elif system_has_kms_drm
 227   with_dri_platform = 'drm'
 228 else
 229   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 230   # assert here that one of those cases has been met.
 231   # FIXME: illumos ends up here as well
 232   with_dri_platform = 'none'
 233 endif
 234
 235 _platforms = get_option('platforms')
 236 if _platforms.contains('auto')
 237   if system_has_kms_drm
 238     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 239   elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
 240     _platforms = ['x11', 'surfaceless']
 241   elif ['haiku'].contains(host_machine.system())
 242     _platforms = ['haiku']
 243   else
 244     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 245           host_machine.system()))
 246   endif
 247 endif
 248
 249 with_platform_android = _platforms.contains('android')
 250 with_platform_x11 = _platforms.contains('x11')
 251 with_platform_wayland = _platforms.contains('wayland')
 252 with_platform_drm = _platforms.contains('drm')
 253 with_platform_haiku = _platforms.contains('haiku')
 254 with_platform_surfaceless = _platforms.contains('surfaceless')
 255
 256 with_platforms = false
 257 if _platforms.length() != 0 and _platforms != ['']
 258   with_platforms = true
 259   egl_native_platform = _platforms[0]
 260 endif
 261
 262 _xlib_lease = get_option('xlib-lease')
 263 if _xlib_lease == 'auto'
 264   with_xlib_lease = with_platform_x11 and with_platform_drm
 265 else
 266   with_xlib_lease = _xlib_lease == 'true'
 267 endif
 268
 269 with_glx = get_option('glx')
 270 if with_glx == 'auto'
 271   if with_dri
 272     with_glx = 'dri'
 273   elif with_platform_haiku
 274     with_glx = 'disabled'
 275   elif with_gallium
 276     # Even when building just gallium drivers the user probably wants dri
 277     with_glx = 'dri'
 278   elif with_platform_x11 and with_any_opengl and not with_any_vk
 279     # The automatic behavior should not be to turn on xlib based glx when
 280     # building only vulkan drivers
 281     with_glx = 'xlib'
 282   else
 283     with_glx = 'disabled'
 284   endif
 285 endif
 286 if with_glx == 'dri'
 287    if with_gallium
 288       with_dri = true
 289    endif
 290 endif
 291
 292 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 293   with_gles1 = false
 294   with_gles2 = false
 295   with_opengl = false
 296   with_any_opengl = false
 297   with_shared_glapi = false
 298 endif
 299
 300 _gbm = get_option('gbm')
 301 if _gbm == 'auto'
 302   with_gbm = system_has_kms_drm and with_dri
 303 else
 304   with_gbm = _gbm == 'true'
 305 endif
 306 if with_gbm and not system_has_kms_drm
 307   error('GBM only supports DRM/KMS platforms')
 308 endif
 309
 310 _egl = get_option('egl')
 311 if _egl == 'auto'
 312   with_egl = (
 313     not ['darwin', 'windows'].contains(host_machine.system()) and
 314     with_dri and with_shared_glapi and with_platforms
 315   )
 316 elif _egl == 'true'
 317   if not with_dri
 318     error('EGL requires dri')
 319   elif not with_shared_glapi
 320     error('EGL requires shared-glapi')
 321   elif not with_platforms
 322     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
 323   elif not ['disabled', 'dri'].contains(with_glx)
 324     error('EGL requires dri, but a GLX is being built without dri')
 325   elif ['darwin', 'windows'].contains(host_machine.system())
 326     error('EGL is not available on Windows or MacOS')
 327   endif
 328   with_egl = true
 329 else
 330   with_egl = false
 331 endif
 332
 333 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 334   if with_gallium_radeonsi
 335     error('RadeonSI requires drm or surfaceless platform when using EGL')
 336   endif
 337   if with_gallium_virgl
 338     error('Virgl requires drm or surfaceless platform when using EGL')
 339   endif
 340 endif
 341
 342 pre_args += '-DGLX_USE_TLS'
 343 if with_glx != 'disabled'
 344   if not (with_platform_x11 and with_any_opengl)
 345     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 346   elif with_glx == 'gallium-xlib'
 347     if not with_gallium
 348       error('Gallium-xlib based GLX requires at least one gallium driver')
 349     elif not with_gallium_softpipe
 350       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 351     elif with_dri
 352       error('gallium-xlib conflicts with any dri driver')
 353     endif
 354   elif with_glx == 'xlib'
 355     if with_dri
 356       error('xlib conflicts with any dri driver')
 357     endif
 358   elif with_glx == 'dri'
 359     if not with_dri
 360       error('dri based GLX requires at least one DRI driver')
 361     elif not with_shared_glapi
 362       error('dri based GLX requires shared-glapi')
 363     endif
 364   endif
 365 endif
 366
 367 with_glvnd = get_option('glvnd')
 368 if with_glvnd
 369   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 370     error('Cannot build glvnd support for GLX that is not DRI based.')
 371   elif with_glx == 'disabled' and not with_egl
 372     error('glvnd requires DRI based GLX and/or EGL')
 373   endif
 374 endif
 375
 376 if with_vulkan_icd_dir == ''
 377   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 378 endif
 379
 380 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 381   host_machine.system() == 'gnu')
 382 _dri3 = get_option('dri3')
 383 if _dri3 == 'auto'
 384   with_dri3 = system_has_kms_drm and with_dri2
 385 else
 386   with_dri3 = _dri3 == 'true'
 387 endif
 388
 389 if with_any_vk and (with_platform_x11 and not with_dri3)
 390   error('Vulkan drivers require dri3 for X11 support')
 391 endif
 392 if with_dri
 393   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 394     error('building dri drivers require at least one windowing system or classic osmesa')
 395   endif
 396 endif
 397
 398 prog_pkgconfig = find_program('pkg-config')
 399
 400 _vdpau = get_option('gallium-vdpau')
 401 if not system_has_kms_drm
 402   if _vdpau == 'true'
 403     error('VDPAU state tracker can only be build on unix-like OSes.')
 404   else
 405     _vdpau = 'false'
 406   endif
 407 elif not with_platform_x11
 408   if _vdpau == 'true'
 409     error('VDPAU state tracker requires X11 support.')
 410   else
 411     _vdpau = 'false'
 412   endif
 413 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 414           with_gallium_nouveau)
 415   if _vdpau == 'true'
 416     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 417   else
 418     _vdpau = 'false'
 419   endif
 420 endif
 421 dep_vdpau = null_dep
 422 with_gallium_vdpau = false
 423 if _vdpau != 'false'
 424   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'true')
 425   if dep_vdpau.found()
 426     dep_vdpau = declare_dependency(
 427       compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 428     )
 429     with_gallium_vdpau = true
 430   endif
 431 endif
 432
 433 if with_gallium_vdpau
 434   pre_args += '-DHAVE_ST_VDPAU'
 435 endif
 436 vdpau_drivers_path = get_option('vdpau-libs-path')
 437 if vdpau_drivers_path == ''
 438   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 439 endif
 440
 441 _xvmc = get_option('gallium-xvmc')
 442 if not system_has_kms_drm
 443   if _xvmc == 'true'
 444     error('XVMC state tracker can only be build on unix-like OSes.')
 445   else
 446     _xvmc = 'false'
 447   endif
 448 elif not with_platform_x11
 449   if _xvmc == 'true'
 450     error('XVMC state tracker requires X11 support.')
 451   else
 452     _xvmc = 'false'
 453   endif
 454 elif not (with_gallium_r600 or with_gallium_nouveau)
 455   if _xvmc == 'true'
 456     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 457   else
 458     _xvmc = 'false'
 459   endif
 460 endif
 461 dep_xvmc = null_dep
 462 with_gallium_xvmc = false
 463 if _xvmc != 'false'
 464   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'true')
 465   with_gallium_xvmc = dep_xvmc.found()
 466 endif
 467
 468 xvmc_drivers_path = get_option('xvmc-libs-path')
 469 if xvmc_drivers_path == ''
 470   xvmc_drivers_path = get_option('libdir')
 471 endif
 472
 473 _omx = get_option('gallium-omx')
 474 if not system_has_kms_drm
 475   if ['auto', 'disabled'].contains(_omx)
 476     _omx = 'disabled'
 477   else
 478     error('OMX state tracker can only be built on unix-like OSes.')
 479   endif
 480 elif not (with_platform_x11 or with_platform_drm)
 481   if ['auto', 'disabled'].contains(_omx)
 482     _omx = 'disabled'
 483   else
 484     error('OMX state tracker requires X11 or drm platform support.')
 485   endif
 486 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 487   if ['auto', 'disabled'].contains(_omx)
 488     _omx = 'disabled'
 489   else
 490     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 491   endif
 492 endif
 493 with_gallium_omx = _omx
 494 dep_omx = null_dep
 495 dep_omx_other = []
 496 if ['auto', 'bellagio'].contains(_omx)
 497   dep_omx = dependency(
 498     'libomxil-bellagio', required : _omx == 'bellagio'
 499   )
 500   if dep_omx.found()
 501     with_gallium_omx = 'bellagio'
 502   endif
 503 endif
 504 if ['auto', 'tizonia'].contains(_omx)
 505   if with_dri and with_egl
 506     dep_omx = dependency(
 507       'libtizonia', version : '>= 0.10.0',
 508       required : _omx == 'tizonia',
 509     )
 510     dep_omx_other = [
 511       dependency('libtizplatform', required : _omx == 'tizonia'),
 512       dependency('tizilheaders', required : _omx == 'tizonia'),
 513     ]
 514     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 515       with_gallium_omx = 'tizonia'
 516     endif
 517   elif _omx == 'tizonia'
 518     error('OMX-Tizonia state tracker requires dri and egl')
 519   endif
 520 endif
 521 if _omx == 'auto'
 522   with_gallium_omx = 'disabled'
 523 else
 524   with_gallium_omx = _omx
 525 endif
 526
 527 pre_args += [
 528   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 529   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 530 ]
 531
 532
 533 omx_drivers_path = get_option('omx-libs-path')
 534
 535 if with_gallium_omx != 'disabled'
 536   # Figure out where to put the omx driver.
 537   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 538   # argument to meson's get_pkgconfig_variable method.
 539   if omx_drivers_path == ''
 540     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 541     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 542     if _omx_libdir == get_option('libdir')
 543       omx_drivers_path = _omx_drivers_dir
 544     else
 545       _omx_base_dir = []
 546       # This will fail on windows. Does OMX run on windows?
 547       _omx_libdir = _omx_libdir.split('/')
 548       _omx_drivers_dir = _omx_drivers_dir.split('/')
 549       foreach o : _omx_drivers_dir
 550         if not _omx_libdir.contains(o)
 551           _omx_base_dir += o
 552         endif
 553       endforeach
 554       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 555     endif
 556   endif
 557 endif
 558
 559 _va = get_option('gallium-va')
 560 if not system_has_kms_drm
 561   if _va == 'true'
 562     error('VA state tracker can only be built on unix-like OSes.')
 563   else
 564     _va = 'false'
 565   endif
 566 elif not (with_platform_x11 or with_platform_drm)
 567   if _va == 'true'
 568     error('VA state tracker requires X11 or drm or wayland platform support.')
 569   else
 570     _va = 'false'
 571   endif
 572 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 573   if _va == 'true'
 574     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 575   else
 576     _va = 'false'
 577   endif
 578 endif
 579 with_gallium_va = false
 580 dep_va = null_dep
 581 if _va != 'false'
 582   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'true')
 583   if dep_va.found()
 584     dep_va_headers = declare_dependency(
 585       compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 586     )
 587     with_gallium_va = true
 588   endif
 589 endif
 590
 591 va_drivers_path = get_option('va-libs-path')
 592 if va_drivers_path == ''
 593   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 594 endif
 595
 596 _xa = get_option('gallium-xa')
 597 if not system_has_kms_drm
 598   if _xa == 'true'
 599     error('XA state tracker can only be built on unix-like OSes.')
 600   else
 601     _xa = 'false'
 602   endif
 603 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 604           or with_gallium_svga)
 605   if _xa == 'true'
 606     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 607   else
 608     _xa = 'false'
 609   endif
 610 endif
 611 with_gallium_xa = _xa != 'false'
 612
 613 d3d_drivers_path = get_option('d3d-drivers-path')
 614 if d3d_drivers_path == ''
 615   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 616 endif
 617
 618 with_gallium_st_nine =  get_option('gallium-nine')
 619 if with_gallium_st_nine
 620   if not with_gallium_softpipe
 621     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 622   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 623             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 624             or with_gallium_iris)
 625     error('The nine state tracker requires at least one non-swrast gallium driver.')
 626   endif
 627   if not with_dri3
 628     error('Using nine with wine requires dri3')
 629   endif
 630 endif
 631
 632 if get_option('power8') != 'false'
 633   # on old versions of meson the cpu family would return as ppc64le on little
 634   # endian power8, this was changed in 0.48 such that the family would always
 635   # be ppc64 regardless of endianness, and the the machine.endian() value
 636   # should be checked. Since we support versions < 0.48 we need to use
 637   # startswith.
 638   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 639     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 640       error('Altivec is not supported with gcc version < 4.8.')
 641     endif
 642     if cc.compiles('''
 643         #include <altivec.h>
 644         int main() {
 645           vector unsigned char r;
 646           vector unsigned int v = vec_splat_u32 (1);
 647           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 648           return 0;
 649         }''',
 650         args : '-mpower8-vector',
 651         name : 'POWER8 intrinsics')
 652       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 653     elif get_option('power8') == 'true'
 654       error('POWER8 intrinsic support required but not found.')
 655     endif
 656   endif
 657 endif
 658
 659 _opencl = get_option('gallium-opencl')
 660 clover_cpp_std = []
 661 if _opencl != 'disabled'
 662   if not with_gallium
 663     error('OpenCL Clover implementation requires at least one gallium driver.')
 664   endif
 665
 666   dep_clc = dependency('libclc')
 667   with_gallium_opencl = true
 668   with_opencl_icd = _opencl == 'icd'
 669
 670   if host_machine.cpu_family().startswith('ppc') and cpp.compiles('''
 671       #if !defined(__VEC__) || !defined(__ALTIVEC__)
 672       #error "AltiVec not enabled"
 673       #endif''',
 674       name : 'Altivec')
 675     clover_cpp_std += ['cpp_std=gnu++11']
 676   endif
 677 else
 678   dep_clc = null_dep
 679   with_gallium_opencl = false
 680   with_opencl_icd = false
 681 endif
 682
 683 gl_pkgconfig_c_flags = []
 684 if with_platform_x11
 685   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 686     pre_args += '-DHAVE_X11_PLATFORM'
 687   endif
 688   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 689     pre_args += '-DUSE_XSHM'
 690   else
 691     pre_args += '-DGLX_INDIRECT_RENDERING'
 692     if with_glx_direct
 693       pre_args += '-DGLX_DIRECT_RENDERING'
 694     endif
 695     if with_dri_platform == 'drm'
 696       pre_args += '-DGLX_USE_DRM'
 697     elif with_dri_platform == 'apple'
 698       pre_args += '-DGLX_USE_APPLEGL'
 699     elif with_dri_platform == 'windows'
 700       pre_args += '-DGLX_USE_WINDOWSGL'
 701     endif
 702   endif
 703 else
 704   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 705   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 706 endif
 707 if with_platform_drm
 708   if with_egl and not with_gbm
 709     error('EGL drm platform requires gbm')
 710   endif
 711   pre_args += '-DHAVE_DRM_PLATFORM'
 712 endif
 713 if with_platform_surfaceless
 714   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 715 endif
 716 if with_platform_android
 717   dep_android = [
 718     dependency('cutils'),
 719     dependency('hardware'),
 720     dependency('sync'),
 721   ]
 722   pre_args += '-DHAVE_ANDROID_PLATFORM'
 723 endif
 724 if with_platform_haiku
 725   pre_args += '-DHAVE_HAIKU_PLATFORM'
 726 endif
 727
 728 prog_python = import('python3').find_python()
 729 has_mako = run_command(
 730   prog_python, '-c',
 731   '''
 732 from distutils.version import StrictVersion
 733 import mako
 734 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 735   ''')
 736 if has_mako.returncode() != 0
 737   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 738 endif
 739
 740 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 741   error('When using GCC, version 4.4.6 or later is required.')
 742 endif
 743
 744 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 745 if get_option('buildtype') == 'debug'
 746   pre_args += '-DDEBUG'
 747 endif
 748
 749 if get_option('shader-cache')
 750   pre_args += '-DENABLE_SHADER_CACHE'
 751 elif with_amd_vk
 752   error('Radv requires shader cache support')
 753 endif
 754
 755 # Check for GCC style builtins
 756 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 757              'ffsll', 'popcount', 'popcountll', 'unreachable']
 758   if cc.has_function(b)
 759     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 760   endif
 761 endforeach
 762
 763 # check for GCC __attribute__
 764 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 765              'warn_unused_result', 'weak',]
 766   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 767                  name : '__attribute__((@0@))'.format(a))
 768     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 769   endif
 770 endforeach
 771 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 772                name : '__attribute__((format(...)))')
 773   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 774 endif
 775 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 776                name : '__attribute__((packed))')
 777   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 778 endif
 779 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 780                name : '__attribute__((returns_nonnull))')
 781   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 782 endif
 783 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 784                   int foo_hid(void) __attribute__((visibility("hidden")));
 785                   int foo_int(void) __attribute__((visibility("internal")));
 786                   int foo_pro(void) __attribute__((visibility("protected")));''',
 787                name : '__attribute__((visibility(...)))')
 788   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 789 endif
 790 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 791                name : '__attribute__((alias(...)))')
 792   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 793 endif
 794 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 795                name : '__attribute__((__noreturn__))')
 796   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 797 endif
 798
 799 # TODO: this is very incomplete
 800 if ['linux', 'cygwin', 'gnu'].contains(host_machine.system())
 801   pre_args += '-D_GNU_SOURCE'
 802 endif
 803
 804 # Check for generic C arguments
 805 c_args = []
 806 foreach a : ['-Werror=implicit-function-declaration',
 807              '-Werror=missing-prototypes', '-Werror=return-type',
 808              '-Werror=incompatible-pointer-types',
 809              '-fno-math-errno',
 810              '-fno-trapping-math', '-Qunused-arguments']
 811   if cc.has_argument(a)
 812     c_args += a
 813   endif
 814 endforeach
 815
 816 foreach a : ['missing-field-initializers', 'format-truncation']
 817   if cc.has_argument('-W' + a)
 818     c_args += '-Wno-' + a
 819   endif
 820 endforeach
 821
 822 c_vis_args = []
 823 if cc.has_argument('-fvisibility=hidden')
 824   c_vis_args += '-fvisibility=hidden'
 825 endif
 826
 827 # Check for generic C++ arguments
 828 cpp_args = []
 829 foreach a : ['-Werror=return-type',
 830              '-fno-math-errno', '-fno-trapping-math',
 831              '-Qunused-arguments']
 832   if cpp.has_argument(a)
 833     cpp_args += a
 834   endif
 835 endforeach
 836
 837 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 838 # option is not supported. Hence, check for -Wfoo instead.
 839
 840 foreach a : ['non-virtual-dtor', 'missing-field-initializers', 'format-truncation']
 841   if cpp.has_argument('-W' + a)
 842     cpp_args += '-Wno-' + a
 843   endif
 844 endforeach
 845
 846 no_override_init_args = []
 847 foreach a : ['override-init', 'initializer-overrides']
 848   if cc.has_argument('-W' + a)
 849     no_override_init_args += '-Wno-' + a
 850   endif
 851 endforeach
 852
 853 cpp_vis_args = []
 854 if cpp.has_argument('-fvisibility=hidden')
 855   cpp_vis_args += '-fvisibility=hidden'
 856 endif
 857
 858 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 859 # in parts of the mesa code base that need to compile with old versions of
 860 # MSVC, mainly common code
 861 c_msvc_compat_args = []
 862 cpp_msvc_compat_args = []
 863 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 864   if cc.has_argument(a)
 865     c_msvc_compat_args += a
 866   endif
 867   if cpp.has_argument(a)
 868     cpp_msvc_compat_args += a
 869   endif
 870 endforeach
 871
 872 if host_machine.cpu_family().startswith('x86')
 873   pre_args += '-DUSE_SSE41'
 874   with_sse41 = true
 875   sse41_args = ['-msse4.1']
 876
 877   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 878   # that's not guaranteed
 879   if host_machine.cpu_family() == 'x86'
 880     sse41_args += '-mstackrealign'
 881   endif
 882 else
 883   with_sse41 = false
 884   sse41_args = []
 885 endif
 886
 887 # Check for GCC style atomics
 888 dep_atomic = null_dep
 889
 890 if cc.compiles('''#include <stdint.h>
 891                   int main() {
 892                     struct {
 893                       uint64_t *v;
 894                     } x;
 895                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 896                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 897
 898                   }''',
 899                name : 'GCC atomic builtins')
 900   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 901
 902   # Not all atomic calls can be turned into lock-free instructions, in which
 903   # GCC will make calls into the libatomic library. Check whether we need to
 904   # link with -latomic.
 905   #
 906   # This can happen for 64-bit atomic operations on 32-bit architectures such
 907   # as ARM.
 908   if not cc.links('''#include <stdint.h>
 909                      int main() {
 910                        struct {
 911                          uint64_t *v;
 912                        } x;
 913                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 914                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 915                      }''',
 916                   name : 'GCC atomic builtins required -latomic')
 917     dep_atomic = cc.find_library('atomic')
 918   endif
 919 endif
 920 if not cc.links('''#include <stdint.h>
 921                    uint64_t v;
 922                    int main() {
 923                      return __sync_add_and_fetch(&v, (uint64_t)1);
 924                    }''',
 925                 dependencies : dep_atomic,
 926                 name : 'GCC 64bit atomics')
 927   pre_args += '-DMISSING_64BIT_ATOMICS'
 928 endif
 929
 930 # TODO: shared/static? Is this even worth doing?
 931
 932 # When cross compiling we generally need to turn off the use of assembly,
 933 # because mesa's assembly relies on building an executable for the host system,
 934 # and running it to get information about struct sizes. There is at least one
 935 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 936 # host OS == build OS, since in that case the build machine can run the host's
 937 # binaries.
 938 if with_asm and meson.is_cross_build()
 939   if build_machine.system() != host_machine.system()
 940     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 941     message('Cross compiling from one OS to another, disabling assembly.')
 942     with_asm = false
 943   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 944     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 945     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 946     # case.
 947     # TODO: There may be other cases where the 64 bit version of the
 948     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 949     message('''
 950       Cross compiling to different architectures, and the host cannot run
 951       the build machine's binaries. Disabling assembly.
 952     ''')
 953     with_asm = false
 954   endif
 955 endif
 956
 957 with_asm_arch = ''
 958 if with_asm
 959   if host_machine.cpu_family() == 'x86'
 960     if system_has_kms_drm or host_machine.system() == 'gnu'
 961       with_asm_arch = 'x86'
 962       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 963                    '-DUSE_SSE_ASM']
 964
 965       if with_glx_read_only_text
 966          pre_args += ['-DGLX_X86_READONLY_TEXT']
 967       endif
 968     endif
 969   elif host_machine.cpu_family() == 'x86_64'
 970     if system_has_kms_drm
 971       with_asm_arch = 'x86_64'
 972       pre_args += ['-DUSE_X86_64_ASM']
 973     endif
 974   elif host_machine.cpu_family() == 'arm'
 975     if system_has_kms_drm
 976       with_asm_arch = 'arm'
 977       pre_args += ['-DUSE_ARM_ASM']
 978     endif
 979   elif host_machine.cpu_family() == 'aarch64'
 980     if system_has_kms_drm
 981       with_asm_arch = 'aarch64'
 982       pre_args += ['-DUSE_AARCH64_ASM']
 983     endif
 984   elif host_machine.cpu_family() == 'sparc64'
 985     if system_has_kms_drm
 986       with_asm_arch = 'sparc'
 987       pre_args += ['-DUSE_SPARC_ASM']
 988     endif
 989   elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 990     if system_has_kms_drm
 991       with_asm_arch = 'ppc64le'
 992       pre_args += ['-DUSE_PPC64LE_ASM']
 993     endif
 994   endif
 995 endif
 996
 997 # Check for standard headers and functions
 998 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 999   pre_args += '-DMAJOR_IN_SYSMACROS'
1000 elif cc.has_header_symbol('sys/mkdev.h', 'major')
1001   pre_args += '-DMAJOR_IN_MKDEV'
1002 endif
1003
1004 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h', 'dlfcn.h']
1005   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
1006     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1007   endif
1008 endforeach
1009
1010 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
1011   if cc.has_function(f)
1012     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1013   endif
1014 endforeach
1015
1016 # strtod locale support
1017 if cc.links('''
1018     #define _GNU_SOURCE
1019     #include <stdlib.h>
1020     #include <locale.h>
1021     #ifdef HAVE_XLOCALE_H
1022     #include <xlocale.h>
1023     #endif
1024     int main() {
1025       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1026       const char *s = "1.0";
1027       char *end;
1028       double d = strtod_l(s, end, loc);
1029       float f = strtof_l(s, end, loc);
1030       freelocale(loc);
1031       return 0;
1032     }''',
1033     args : pre_args,
1034     name : 'strtod has locale support')
1035   pre_args += '-DHAVE_STRTOD_L'
1036 endif
1037
1038 # Check for some linker flags
1039 ld_args_bsymbolic = []
1040 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1041   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1042 endif
1043 ld_args_gc_sections = []
1044 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1045             args : '-Wl,--gc-sections', name : 'gc-sections')
1046   ld_args_gc_sections += '-Wl,--gc-sections'
1047 endif
1048 with_ld_version_script = false
1049 if cc.links('int main() { return 0; }',
1050             args : '-Wl,--version-script=@0@'.format(
1051               join_paths(meson.source_root(), 'build-support/conftest.map')),
1052             name : 'version-script')
1053   with_ld_version_script = true
1054 endif
1055 with_ld_dynamic_list = false
1056 if cc.links('int main() { return 0; }',
1057             args : '-Wl,--dynamic-list=@0@'.format(
1058               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1059             name : 'dynamic-list')
1060   with_ld_dynamic_list = true
1061 endif
1062 ld_args_build_id = []
1063 if build_machine.system() != 'darwin'
1064    ld_args_build_id += '-Wl,--build-id=sha1'
1065 endif
1066
1067 # check for dl support
1068 if cc.has_function('dlopen')
1069   dep_dl = null_dep
1070 else
1071   dep_dl = cc.find_library('dl')
1072 endif
1073 if cc.has_function('dladdr', dependencies : dep_dl)
1074   # This is really only required for megadrivers
1075   pre_args += '-DHAVE_DLADDR'
1076 endif
1077
1078 if cc.has_function('dl_iterate_phdr')
1079   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1080 elif with_intel_vk
1081   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1082 elif with_dri_i965 and get_option('shader-cache')
1083   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1084 endif
1085
1086 # Determine whether or not the rt library is needed for time functions
1087 if cc.has_function('clock_gettime')
1088   dep_clock = null_dep
1089 else
1090   dep_clock = cc.find_library('rt')
1091 endif
1092
1093 # TODO: some of these may be conditional
1094 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1095 pre_args += '-DHAVE_ZLIB'
1096 dep_thread = dependency('threads')
1097 if dep_thread.found() and host_machine.system() != 'windows'
1098   pre_args += '-DHAVE_PTHREAD'
1099   if cc.has_function(
1100       'pthread_setaffinity_np',
1101       dependencies : dep_thread,
1102       prefix : '#include <pthread.h>',
1103       args : '-D_GNU_SOURCE')
1104     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1105   endif
1106 endif
1107 dep_expat = dependency('expat')
1108 # this only exists on linux so either this is linux and it will be found, or
1109 # its not linux and and wont
1110 dep_m = cc.find_library('m', required : false)
1111
1112 # Check for libdrm. various drivers have different libdrm version requirements,
1113 # but we always want to use the same version for all libdrm modules. That means
1114 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1115 # bar are both on use 2.4.3 for both of them
1116 dep_libdrm_amdgpu = null_dep
1117 dep_libdrm_radeon = null_dep
1118 dep_libdrm_nouveau = null_dep
1119 dep_libdrm_etnaviv = null_dep
1120 dep_libdrm_intel = null_dep
1121
1122 _drm_amdgpu_ver = '2.4.97'
1123 _drm_radeon_ver = '2.4.71'
1124 _drm_nouveau_ver = '2.4.66'
1125 _drm_etnaviv_ver = '2.4.89'
1126 _drm_intel_ver = '2.4.75'
1127 _drm_ver = '2.4.75'
1128
1129 _libdrm_checks = [
1130   ['intel', with_dri_i915 or with_gallium_i915],
1131   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1132   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1133               with_gallium_r300 or with_gallium_r600)],
1134   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1135   ['etnaviv', with_gallium_etnaviv],
1136 ]
1137
1138 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1139 # library.
1140 if with_gallium_vc4
1141   _drm_ver = '2.4.89'
1142 endif
1143
1144 # Loop over the enables versions and get the highest libdrm requirement for all
1145 # active drivers.
1146 _drm_blame = ''
1147 foreach d : _libdrm_checks
1148   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1149   if d[1] and ver.version_compare('>' + _drm_ver)
1150     _drm_ver = ver
1151     _drm_blame = d[0]
1152   endif
1153 endforeach
1154 if _drm_blame != ''
1155   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1156 endif
1157
1158 # Then get each libdrm module
1159 foreach d : _libdrm_checks
1160   if d[1]
1161     set_variable(
1162       'dep_libdrm_' + d[0],
1163       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1164     )
1165   endif
1166 endforeach
1167
1168 with_gallium_drisw_kms = false
1169 dep_libdrm = dependency(
1170   'libdrm', version : '>=' + _drm_ver,
1171   required : with_dri2 or with_dri3
1172 )
1173 if dep_libdrm.found()
1174   pre_args += '-DHAVE_LIBDRM'
1175   if with_dri_platform == 'drm' and with_dri
1176     with_gallium_drisw_kms = true
1177   endif
1178 endif
1179
1180 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1181 llvm_optional_modules = []
1182 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1183   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1184   if with_gallium_r600
1185     llvm_modules += 'asmparser'
1186   endif
1187 endif
1188 if with_gallium_opencl
1189   llvm_modules += [
1190     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1191     'lto', 'option', 'objcarcopts', 'profiledata',
1192   ]
1193   llvm_optional_modules += ['coroutines']
1194 endif
1195
1196 if with_amd_vk or with_gallium_radeonsi
1197   _llvm_version = '>= 7.0.0'
1198 elif with_gallium_swr
1199   _llvm_version = '>= 6.0.0'
1200 elif with_gallium_opencl or with_gallium_r600
1201   _llvm_version = '>= 3.9.0'
1202 else
1203   _llvm_version = '>= 3.3.0'
1204 endif
1205
1206 _shared_llvm = get_option('shared-llvm')
1207
1208 _llvm = get_option('llvm')
1209 dep_llvm = null_dep
1210 with_llvm = false
1211 if _llvm != 'false'
1212   dep_llvm = dependency(
1213     'llvm',
1214     version : _llvm_version,
1215     modules : llvm_modules,
1216     optional_modules : llvm_optional_modules,
1217     required : (
1218       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1219       with_gallium_opencl or _llvm == 'true'
1220     ),
1221     static : not _shared_llvm,
1222   )
1223   with_llvm = dep_llvm.found()
1224 endif
1225 if with_llvm
1226   _llvm_version = dep_llvm.version().split('.')
1227
1228   # 3 digits versions in LLVM only started from 3.4.1 on
1229   if dep_llvm.version().version_compare('>= 3.4.1')
1230     _llvm_patch = _llvm_version[2]
1231   else
1232     _llvm_patch = '0'
1233   endif
1234
1235   pre_args += [
1236     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1237     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1238   ]
1239
1240   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1241   # programs, so we need to build all C++ code in mesa without rtti as well to
1242   # ensure that linking works.
1243   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1244     if with_gallium_nouveau
1245       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1246     endif
1247     cpp_args += '-fno-rtti'
1248   endif
1249 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1250   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1251 endif
1252
1253 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1254     (with_gallium_r600 and with_llvm))
1255   dep_elf = dependency('libelf', required : false)
1256   if not dep_elf.found()
1257     dep_elf = cc.find_library('elf')
1258   endif
1259 else
1260   dep_elf = null_dep
1261 endif
1262
1263 dep_glvnd = null_dep
1264 if with_glvnd
1265   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1266   pre_args += '-DUSE_LIBGLVND=1'
1267 endif
1268
1269 if with_valgrind != 'false'
1270   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1271   if dep_valgrind.found()
1272     pre_args += '-DHAVE_VALGRIND'
1273   endif
1274 else
1275   dep_valgrind = null_dep
1276 endif
1277
1278 # pthread stubs. Lets not and say we didn't
1279
1280 prog_bison = find_program('bison', required : with_any_opengl)
1281 prog_flex = find_program('flex', required : with_any_opengl)
1282
1283 dep_selinux = null_dep
1284 if get_option('selinux')
1285   dep_selinux = dependency('libselinux')
1286   pre_args += '-DMESA_SELINUX'
1287 endif
1288
1289 if with_libunwind != 'false'
1290   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1291   if dep_unwind.found()
1292     pre_args += '-DHAVE_LIBUNWIND'
1293   endif
1294 else
1295   dep_unwind = null_dep
1296 endif
1297
1298 if with_osmesa != 'none'
1299   if with_osmesa == 'classic' and not with_dri_swrast
1300     error('OSMesa classic requires dri (classic) swrast.')
1301   endif
1302   if with_osmesa == 'gallium' and not with_gallium_softpipe
1303     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1304   endif
1305   osmesa_lib_name = 'OSMesa'
1306   osmesa_bits = get_option('osmesa-bits')
1307   if osmesa_bits != '8'
1308     if with_dri or with_glx != 'disabled'
1309       error('OSMesa bits must be 8 if building glx or dir based drivers')
1310     endif
1311     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1312     pre_args += [
1313       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1314     ]
1315   endif
1316 endif
1317
1318 # TODO: symbol mangling
1319
1320 if with_platform_wayland
1321   dep_wl_scanner = dependency('wayland-scanner', native: true)
1322   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1323   if dep_wl_scanner.version().version_compare('>= 1.15')
1324     wl_scanner_arg = 'private-code'
1325   else
1326     wl_scanner_arg = 'code'
1327   endif
1328   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1329   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1330   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1331   if with_egl
1332     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1333     dep_wayland_egl_headers = declare_dependency(
1334       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1335   endif
1336   wayland_dmabuf_xml = join_paths(
1337     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1338     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1339   )
1340   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1341 endif
1342
1343 dep_x11 = null_dep
1344 dep_xext = null_dep
1345 dep_xdamage = null_dep
1346 dep_xfixes = null_dep
1347 dep_x11_xcb = null_dep
1348 dep_xcb = null_dep
1349 dep_xcb_glx = null_dep
1350 dep_xcb_dri2 = null_dep
1351 dep_xcb_dri3 = null_dep
1352 dep_dri2proto = null_dep
1353 dep_glproto = null_dep
1354 dep_xxf86vm = null_dep
1355 dep_xcb_dri3 = null_dep
1356 dep_xcb_present = null_dep
1357 dep_xcb_sync = null_dep
1358 dep_xcb_xfixes = null_dep
1359 dep_xshmfence = null_dep
1360 dep_xcb_xrandr = null_dep
1361 dep_xlib_xrandr = null_dep
1362 if with_platform_x11
1363   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1364     dep_x11 = dependency('x11')
1365     dep_xext = dependency('xext')
1366     dep_xcb = dependency('xcb')
1367   elif with_glx == 'dri'
1368     dep_x11 = dependency('x11')
1369     dep_xext = dependency('xext')
1370     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1371     dep_xfixes = dependency('xfixes')
1372     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1373   endif
1374   if (with_any_vk or with_glx == 'dri' or with_egl or
1375        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1376         with_gallium_omx != 'disabled'))
1377     dep_xcb = dependency('xcb')
1378     dep_x11_xcb = dependency('x11-xcb')
1379   endif
1380   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1381     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1382
1383     if with_dri3
1384       pre_args += '-DHAVE_DRI3'
1385       dep_xcb_dri3 = dependency('xcb-dri3')
1386       dep_xcb_present = dependency('xcb-present')
1387       # until xcb-dri3 has been around long enough to make a hard-dependency:
1388       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1389           dep_xcb_present.version().version_compare('>= 1.13'))
1390         pre_args += '-DHAVE_DRI3_MODIFIERS'
1391       endif
1392       dep_xcb_sync = dependency('xcb-sync')
1393       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1394     endif
1395   endif
1396   if with_glx == 'dri'
1397     if with_dri_platform == 'drm'
1398       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1399       dep_xxf86vm = dependency('xxf86vm')
1400     endif
1401     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1402   endif
1403   if (with_egl or (
1404       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1405       with_gallium_omx != 'disabled'))
1406     dep_xcb_xfixes = dependency('xcb-xfixes')
1407   endif
1408   if with_xlib_lease
1409     dep_xcb_xrandr = dependency('xcb-randr')
1410     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1411   endif
1412 endif
1413
1414 if get_option('gallium-extra-hud')
1415   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1416 endif
1417
1418 _sensors = get_option('lmsensors')
1419 if _sensors != 'false'
1420   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'true')
1421   if dep_lmsensors.found()
1422     pre_args += '-DHAVE_LIBSENSORS=1'
1423   endif
1424 else
1425   dep_lmsensors = null_dep
1426 endif
1427
1428 foreach a : pre_args
1429   add_project_arguments(a, language : ['c', 'cpp'])
1430 endforeach
1431 foreach a : c_args
1432   add_project_arguments(a, language : ['c'])
1433 endforeach
1434 foreach a : cpp_args
1435   add_project_arguments(a, language : ['cpp'])
1436 endforeach
1437
1438 gl_priv_reqs = []
1439
1440 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1441   gl_priv_reqs += ['x11', 'xext', 'xcb']
1442 elif with_glx == 'dri'
1443   gl_priv_reqs += [
1444     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1445     'xcb-glx >= 1.8.1']
1446   if with_dri_platform == 'drm'
1447     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1448     gl_priv_reqs += 'xxf86vm'
1449   endif
1450 endif
1451 if dep_libdrm.found()
1452   gl_priv_reqs += 'libdrm >= 2.4.75'
1453 endif
1454
1455 gl_priv_libs = []
1456 if dep_thread.found()
1457   gl_priv_libs += ['-lpthread', '-pthread']
1458 endif
1459 if dep_m.found()
1460   gl_priv_libs += '-lm'
1461 endif
1462 if dep_dl.found()
1463   gl_priv_libs += '-ldl'
1464 endif
1465
1466 pkg = import('pkgconfig')
1467
1468 env_test = environment()
1469 env_test.set('NM', find_program('nm').path())
1470
1471 # This quirk needs to be applied to sources with functions defined in assembly
1472 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1473 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1474
1475 subdir('include')
1476 subdir('bin')
1477 subdir('src')