meson.build

   1 # Copyright © 2017-2018 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.44.1',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  38
  39 # Arguments for the preprocessor, put these in a separate array from the C and
  40 # C++ (cpp in meson terminology) arguments since they need to be added to the
  41 # default arguments for both C and C++.
  42 pre_args = [
  43   '-D__STDC_CONSTANT_MACROS',
  44   '-D__STDC_FORMAT_MACROS',
  45   '-D__STDC_LIMIT_MACROS',
  46   '-DVERSION="@0@"'.format(meson.project_version()),
  47   '-DPACKAGE_VERSION=VERSION',
  48   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  49 ]
  50
  51 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  52 with_tests = get_option('build-tests')
  53 with_valgrind = get_option('valgrind')
  54 with_libunwind = get_option('libunwind')
  55 with_asm = get_option('asm')
  56 with_glx_read_only_text = get_option('glx-read-only-text')
  57 with_osmesa = get_option('osmesa')
  58 with_swr_arches = get_option('swr-arches')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau']
  62 endif
  63
  64 dri_drivers_path = get_option('dri-drivers-path')
  65 if dri_drivers_path == ''
  66   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  67 endif
  68 dri_search_path = get_option('dri-search-path')
  69 if dri_search_path == ''
  70   dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
  71 endif
  72
  73 with_gles1 = get_option('gles1')
  74 with_gles2 = get_option('gles2')
  75 with_opengl = get_option('opengl')
  76 with_any_opengl = with_opengl or with_gles1 or with_gles2
  77 # Only build shared_glapi if at least one OpenGL API is enabled
  78 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  79
  80
  81 # shared-glapi is required if at least two OpenGL APIs are being built
  82 if not with_shared_glapi
  83   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  84       or (with_gles2 and with_opengl))
  85     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  86   endif
  87 endif
  88
  89 # We require OpenGL for OpenGL ES
  90 if (with_gles1 or with_gles2) and not with_opengl
  91   error('building OpenGL ES without OpenGL is not supported.')
  92 endif
  93
  94 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  95
  96 _drivers = get_option('dri-drivers')
  97 if _drivers.contains('auto')
  98   if system_has_kms_drm
  99     # TODO: PPC, Sparc
 100     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 101       _drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 102     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 103       _drivers = []
 104     else
 105       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 106     endif
 107   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 108     # only swrast would make sense here, but gallium swrast is a much better default
 109     _drivers = []
 110   else
 111     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 112   endif
 113 endif
 114
 115 with_dri_i915 = _drivers.contains('i915')
 116 with_dri_i965 = _drivers.contains('i965')
 117 with_dri_r100 = _drivers.contains('r100')
 118 with_dri_r200 = _drivers.contains('r200')
 119 with_dri_nouveau = _drivers.contains('nouveau')
 120 with_dri_swrast = _drivers.contains('swrast')
 121
 122 with_dri = _drivers.length() != 0 and _drivers != ['']
 123
 124 _drivers = get_option('gallium-drivers')
 125 if _drivers.contains('auto')
 126   if system_has_kms_drm
 127     # TODO: PPC, Sparc
 128     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 129       _drivers = [
 130         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast'
 131       ]
 132     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 133       _drivers = [
 134         'pl111', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'imx', 'nouveau',
 135         'tegra', 'virgl', 'swrast',
 136       ]
 137     else
 138       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 139     endif
 140   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 141     _drivers = ['swrast']
 142   else
 143     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 144   endif
 145 endif
 146 with_gallium_pl111 = _drivers.contains('pl111')
 147 with_gallium_radeonsi = _drivers.contains('radeonsi')
 148 with_gallium_r300 = _drivers.contains('r300')
 149 with_gallium_r600 = _drivers.contains('r600')
 150 with_gallium_nouveau = _drivers.contains('nouveau')
 151 with_gallium_freedreno = _drivers.contains('freedreno')
 152 with_gallium_softpipe = _drivers.contains('swrast')
 153 with_gallium_vc4 = _drivers.contains('vc4')
 154 with_gallium_v3d = _drivers.contains('v3d')
 155 with_gallium_etnaviv = _drivers.contains('etnaviv')
 156 with_gallium_imx = _drivers.contains('imx')
 157 with_gallium_tegra = _drivers.contains('tegra')
 158 with_gallium_i915 = _drivers.contains('i915')
 159 with_gallium_svga = _drivers.contains('svga')
 160 with_gallium_virgl = _drivers.contains('virgl')
 161 with_gallium_swr = _drivers.contains('swr')
 162
 163 with_gallium = _drivers.length() != 0 and _drivers != ['']
 164
 165 if with_gallium and system_has_kms_drm
 166   _glx = get_option('glx')
 167   _egl = get_option('egl')
 168   if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 169     with_dri = true
 170   endif
 171 endif
 172
 173 _vulkan_drivers = get_option('vulkan-drivers')
 174 if _vulkan_drivers.contains('auto')
 175   if system_has_kms_drm
 176     if host_machine.cpu_family().startswith('x86')
 177       _vulkan_drivers = ['amd', 'intel']
 178     else
 179       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 180     endif
 181   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 182     # No vulkan driver supports windows or macOS currently
 183     _vulkan_drivers = []
 184   else
 185     error('Unknown OS. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 186   endif
 187 endif
 188
 189 with_intel_vk = _vulkan_drivers.contains('intel')
 190 with_amd_vk = _vulkan_drivers.contains('amd')
 191 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 192
 193 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 194   error('Only one swrast provider can be built')
 195 endif
 196 if with_dri_i915 and with_gallium_i915
 197   error('Only one i915 provider can be built')
 198 endif
 199 if with_gallium_imx and not with_gallium_etnaviv
 200   error('IMX driver requires etnaviv driver')
 201 endif
 202 if with_gallium_pl111 and not with_gallium_vc4
 203   error('pl111 driver requires vc4 driver')
 204 endif
 205 if with_gallium_tegra and not with_gallium_nouveau
 206   error('tegra driver requires nouveau driver')
 207 endif
 208
 209 if host_machine.system() == 'darwin'
 210   with_dri_platform = 'apple'
 211 elif ['windows', 'cygwin'].contains(host_machine.system())
 212   with_dri_platform = 'windows'
 213 elif system_has_kms_drm
 214   with_dri_platform = 'drm'
 215 else
 216   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 217   # assert here that one of those cases has been met.
 218   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 219   # support Hurd at time of writing (2017/11)
 220   # FIXME: illumos ends up here as well
 221   with_dri_platform = 'none'
 222 endif
 223
 224 _platforms = get_option('platforms')
 225 if _platforms.contains('auto')
 226   if system_has_kms_drm
 227     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 228   elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
 229     _platforms = ['x11', 'surfaceless']
 230   elif ['haiku'].contains(host_machine.system())
 231     _platforms = ['haiku']
 232   else
 233     error('Unknown OS. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.')
 234   endif
 235 endif
 236
 237 with_platform_android = _platforms.contains('android')
 238 with_platform_x11 = _platforms.contains('x11')
 239 with_platform_wayland = _platforms.contains('wayland')
 240 with_platform_drm = _platforms.contains('drm')
 241 with_platform_haiku = _platforms.contains('haiku')
 242 with_platform_surfaceless = _platforms.contains('surfaceless')
 243
 244 with_platforms = false
 245 if _platforms.length() != 0 and _platforms != ['']
 246   with_platforms = true
 247   egl_native_platform = _platforms[0]
 248 endif
 249
 250 _xlib_lease = get_option('xlib-lease')
 251 if _xlib_lease == 'auto'
 252   with_xlib_lease = with_platform_x11 and with_platform_drm
 253 else
 254   with_xlib_lease = _xlib_lease == 'true'
 255 endif
 256
 257 with_glx = get_option('glx')
 258 if with_glx == 'auto'
 259   if with_dri
 260     with_glx = 'dri'
 261   elif with_platform_haiku
 262     with_glx = 'disabled'
 263   elif with_gallium
 264     # Even when building just gallium drivers the user probably wants dri
 265     with_glx = 'dri'
 266     with_dri = true
 267   elif with_platform_x11 and with_any_opengl and not with_any_vk
 268     # The automatic behavior should not be to turn on xlib based glx when
 269     # building only vulkan drivers
 270     with_glx = 'xlib'
 271   else
 272     with_glx = 'disabled'
 273   endif
 274 endif
 275
 276 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 277   with_gles1 = false
 278   with_gles2 = false
 279   with_opengl = false
 280   with_any_opengl = false
 281   with_shared_glapi = false
 282 endif
 283
 284 _gbm = get_option('gbm')
 285 if _gbm == 'auto'
 286   with_gbm = system_has_kms_drm and with_dri
 287 else
 288   with_gbm = _gbm == 'true'
 289 endif
 290 if with_gbm and not system_has_kms_drm
 291   error('GBM only supports DRM/KMS platforms')
 292 endif
 293
 294 _egl = get_option('egl')
 295 if _egl == 'auto'
 296   with_egl = with_dri and with_shared_glapi and with_platforms
 297 elif _egl == 'true'
 298   if not with_dri
 299     error('EGL requires dri')
 300   elif not with_shared_glapi
 301     error('EGL requires shared-glapi')
 302   elif not with_platforms
 303     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 304   elif not ['disabled', 'dri'].contains(with_glx)
 305     error('EGL requires dri, but a GLX is being built without dri')
 306   endif
 307   with_egl = true
 308 else
 309   with_egl = false
 310 endif
 311
 312 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 313   if with_gallium_radeonsi
 314     error('RadeonSI requires drm or surfaceless platform when using EGL')
 315   endif
 316   if with_gallium_virgl
 317     error('Virgl requires drm or surfaceless platform when using EGL')
 318   endif
 319 endif
 320
 321 pre_args += '-DGLX_USE_TLS'
 322 if with_glx != 'disabled'
 323   if not (with_platform_x11 and with_any_opengl)
 324     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 325   elif with_glx == 'gallium-xlib'
 326     if not with_gallium
 327       error('Gallium-xlib based GLX requires at least one gallium driver')
 328     elif not with_gallium_softpipe
 329       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 330     elif with_dri
 331       error('gallium-xlib conflicts with any dri driver')
 332     endif
 333   elif with_glx == 'xlib'
 334     if with_dri
 335       error('xlib conflicts with any dri driver')
 336     endif
 337   elif with_glx == 'dri'
 338     if not with_dri
 339       error('dri based GLX requires at least one DRI driver')
 340     elif not with_shared_glapi
 341       error('dri based GLX requires shared-glapi')
 342     endif
 343   endif
 344 endif
 345
 346 with_glvnd = get_option('glvnd')
 347 if with_glvnd
 348   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 349     error('Cannot build glvnd support for GLX that is not DRI based.')
 350   elif with_glx == 'disabled' and not with_egl
 351     error('glvnd requires DRI based GLX and/or EGL')
 352   endif
 353 endif
 354
 355 # TODO: toggle for this
 356 with_glx_direct = true
 357
 358 if with_vulkan_icd_dir == ''
 359   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 360 endif
 361
 362 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 363 _dri3 = get_option('dri3')
 364 if _dri3 == 'auto'
 365   with_dri3 = system_has_kms_drm and with_dri2
 366 else
 367   with_dri3 = _dri3 == 'true'
 368 endif
 369
 370 if with_any_vk and (with_platform_x11 and not with_dri3)
 371   error('Vulkan drivers require dri3 for X11 support')
 372 endif
 373 if with_dri or with_gallium
 374   if with_glx == 'disabled' and not with_egl and not with_platform_haiku
 375     error('building dri or gallium drivers require at least one window system')
 376   endif
 377 endif
 378
 379 prog_pkgconfig = find_program('pkg-config')
 380
 381 _vdpau = get_option('gallium-vdpau')
 382 if not system_has_kms_drm
 383   if _vdpau == 'true'
 384     error('VDPAU state tracker can only be build on unix-like OSes.')
 385   else
 386     _vdpau = 'false'
 387   endif
 388 elif not with_platform_x11
 389   if _vdpau == 'true'
 390     error('VDPAU state tracker requires X11 support.')
 391   else
 392     _vdpau = 'false'
 393   endif
 394 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 395           with_gallium_nouveau)
 396   if _vdpau == 'true'
 397     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 398   else
 399     _vdpau = 'false'
 400   endif
 401 elif _vdpau == 'auto'
 402   _vdpau = 'true'
 403 endif
 404 with_gallium_vdpau = _vdpau == 'true'
 405 dep_vdpau = null_dep
 406 if with_gallium_vdpau
 407   dep_vdpau = dependency('vdpau', version : '>= 1.1')
 408   dep_vdpau = declare_dependency(
 409     compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 410   )
 411 endif
 412
 413 if with_gallium_vdpau
 414   pre_args += '-DHAVE_ST_VDPAU'
 415 endif
 416 vdpau_drivers_path = get_option('vdpau-libs-path')
 417 if vdpau_drivers_path == ''
 418   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 419 endif
 420
 421 _xvmc = get_option('gallium-xvmc')
 422 if not system_has_kms_drm
 423   if _xvmc == 'true'
 424     error('XVMC state tracker can only be build on unix-like OSes.')
 425   else
 426     _xvmc = 'false'
 427   endif
 428 elif not with_platform_x11
 429   if _xvmc == 'true'
 430     error('XVMC state tracker requires X11 support.')
 431   else
 432     _xvmc = 'false'
 433   endif
 434 elif not (with_gallium_r600 or with_gallium_nouveau)
 435   if _xvmc == 'true'
 436     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 437   else
 438     _xvmc = 'false'
 439   endif
 440 elif _xvmc == 'auto'
 441   _xvmc = 'true'
 442 endif
 443 with_gallium_xvmc = _xvmc == 'true'
 444 dep_xvmc = null_dep
 445 if with_gallium_xvmc
 446   dep_xvmc = dependency('xvmc', version : '>= 1.0.6')
 447 endif
 448
 449 xvmc_drivers_path = get_option('xvmc-libs-path')
 450 if xvmc_drivers_path == ''
 451   xvmc_drivers_path = get_option('libdir')
 452 endif
 453
 454 _omx = get_option('gallium-omx')
 455 if not system_has_kms_drm
 456   if ['auto', 'disabled'].contains(_omx)
 457     _omx = 'disabled'
 458   else
 459     error('OMX state tracker can only be built on unix-like OSes.')
 460   endif
 461 elif not (with_platform_x11 or with_platform_drm)
 462   if ['auto', 'disabled'].contains(_omx)
 463     _omx = 'disabled'
 464   else
 465     error('OMX state tracker requires X11 or drm platform support.')
 466   endif
 467 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 468   if ['auto', 'disabled'].contains(_omx)
 469     _omx = 'disabled'
 470   else
 471     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 472   endif
 473 endif
 474 with_gallium_omx = _omx
 475 dep_omx = null_dep
 476 dep_omx_other = []
 477 if ['auto', 'bellagio'].contains(_omx)
 478   dep_omx = dependency(
 479     'libomxil-bellagio', required : _omx == 'bellagio'
 480   )
 481   if dep_omx.found()
 482     with_gallium_omx = 'bellagio'
 483   endif
 484 endif
 485 if ['auto', 'tizonia'].contains(_omx)
 486   if with_dri and with_egl
 487     dep_omx = dependency(
 488       'libtizonia', version : '>= 0.10.0',
 489       required : _omx == 'tizonia',
 490     )
 491     dep_omx_other = [
 492       dependency('libtizplatform', required : _omx == 'tizonia'),
 493       dependency('tizilheaders', required : _omx == 'tizonia'),
 494     ]
 495     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 496       with_gallium_omx = 'tizonia'
 497     endif
 498   elif _omx == 'tizonia'
 499     error('OMX-Tizonia state tracker requires dri and egl')
 500   endif
 501 endif
 502 if _omx == 'auto'
 503   with_gallium_omx = 'disabled'
 504 else
 505   with_gallium_omx = _omx
 506 endif
 507
 508 pre_args += [
 509   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 510   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 511 ]
 512
 513
 514 omx_drivers_path = get_option('omx-libs-path')
 515
 516 if with_gallium_omx != 'disabled'
 517   # Figure out where to put the omx driver.
 518   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 519   # argument to meson's get_pkgconfig_variable method.
 520   if omx_drivers_path == ''
 521     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 522     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 523     if _omx_libdir == get_option('libdir')
 524       omx_drivers_path = _omx_drivers_dir
 525     else
 526       _omx_base_dir = []
 527       # This will fail on windows. Does OMX run on windows?
 528       _omx_libdir = _omx_libdir.split('/')
 529       _omx_drivers_dir = _omx_drivers_dir.split('/')
 530       foreach o : _omx_drivers_dir
 531         if not _omx_libdir.contains(o)
 532           _omx_base_dir += o
 533         endif
 534       endforeach
 535       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 536     endif
 537   endif
 538 endif
 539
 540 _va = get_option('gallium-va')
 541 if not system_has_kms_drm
 542   if _va == 'true'
 543     error('VA state tracker can only be built on unix-like OSes.')
 544   else
 545     _va = 'false'
 546   endif
 547 elif not (with_platform_x11 or with_platform_drm)
 548   if _va == 'true'
 549     error('VA state tracker requires X11 or drm or wayland platform support.')
 550   else
 551     _va = 'false'
 552   endif
 553 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 554   if _va == 'true'
 555     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 556   else
 557     _va = 'false'
 558   endif
 559 elif _va == 'auto'
 560   _va = 'true'
 561 endif
 562 with_gallium_va = _va == 'true'
 563 dep_va = null_dep
 564 if with_gallium_va
 565   dep_va = dependency('libva', version : '>= 0.39.0')
 566   dep_va_headers = declare_dependency(
 567     compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 568   )
 569 endif
 570
 571 va_drivers_path = get_option('va-libs-path')
 572 if va_drivers_path == ''
 573   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 574 endif
 575
 576 _xa = get_option('gallium-xa')
 577 if not system_has_kms_drm
 578   if _xa == 'true'
 579     error('XA state tracker can only be built on unix-like OSes.')
 580   else
 581     _xa = 'false'
 582   endif
 583 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 584           or with_gallium_svga)
 585   if _xa == 'true'
 586     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 587   else
 588     _xa = 'false'
 589   endif
 590 endif
 591 with_gallium_xa = _xa != 'false'
 592
 593 d3d_drivers_path = get_option('d3d-drivers-path')
 594 if d3d_drivers_path == ''
 595   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 596 endif
 597
 598 with_gallium_st_nine =  get_option('gallium-nine')
 599 if with_gallium_st_nine
 600   if not with_gallium_softpipe
 601     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 602   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 603             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 604     error('The nine state tracker requires at least on non-swrast gallium driver.')
 605   endif
 606   if not with_dri3
 607     error('Using nine with wine requires dri3')
 608   endif
 609 endif
 610
 611 if get_option('power8') != 'false'
 612   if host_machine.cpu_family() == 'ppc64le'
 613     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 614       error('Altivec is not supported with gcc version < 4.8.')
 615     endif
 616     if cc.compiles('''
 617         #include <altivec.h>
 618         int main() {
 619           vector unsigned char r;
 620           vector unsigned int v = vec_splat_u32 (1);
 621           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 622           return 0;
 623         }''',
 624         args : '-mpower8-vector',
 625         name : 'POWER8 intrinsics')
 626       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 627     elif get_option('power8') == 'true'
 628       error('POWER8 intrinsic support required but not found.')
 629     endif
 630   endif
 631 endif
 632
 633 _opencl = get_option('gallium-opencl')
 634 if _opencl != 'disabled'
 635   if not with_gallium
 636     error('OpenCL Clover implementation requires at least one gallium driver.')
 637   endif
 638
 639   dep_clc = dependency('libclc')
 640   with_gallium_opencl = true
 641   with_opencl_icd = _opencl == 'icd'
 642 else
 643   dep_clc = null_dep
 644   with_gallium_opencl = false
 645   with_gallium_icd = false
 646 endif
 647
 648 gl_pkgconfig_c_flags = []
 649 if with_platform_x11
 650   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 651     pre_args += '-DHAVE_X11_PLATFORM'
 652   endif
 653   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 654     pre_args += '-DUSE_XSHM'
 655   else
 656     pre_args += '-DGLX_INDIRECT_RENDERING'
 657     if with_glx_direct
 658       pre_args += '-DGLX_DIRECT_RENDERING'
 659     endif
 660     if with_dri_platform == 'drm'
 661       pre_args += '-DGLX_USE_DRM'
 662     elif with_dri_platform == 'apple'
 663       pre_args += '-DGLX_USE_APPLEGL'
 664     elif with_dri_platform == 'windows'
 665       pre_args += '-DGLX_USE_WINDOWSGL'
 666     endif
 667   endif
 668 else
 669   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 670   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 671 endif
 672 if with_platform_drm
 673   if with_egl and not with_gbm
 674     error('EGL drm platform requires gbm')
 675   endif
 676   pre_args += '-DHAVE_DRM_PLATFORM'
 677 endif
 678 if with_platform_surfaceless
 679   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 680 endif
 681 if with_platform_android
 682   dep_android = [
 683     dependency('cutils'),
 684     dependency('hardware'),
 685     dependency('sync'),
 686   ]
 687   pre_args += '-DHAVE_ANDROID_PLATFORM'
 688 endif
 689 if with_platform_haiku
 690   pre_args += '-DHAVE_HAIKU_PLATFORM'
 691 endif
 692
 693 prog_python2 = find_program('python2')
 694 has_mako = run_command(prog_python2, '-c', 'import mako')
 695 if has_mako.returncode() != 0
 696   error('Python (2.x) mako module required to build mesa.')
 697 endif
 698
 699 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 700   error('When using GCC, version 4.4.6 or later is required.')
 701 endif
 702
 703 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 704 if get_option('buildtype') == 'debug'
 705   pre_args += '-DDEBUG'
 706 endif
 707
 708 if get_option('shader-cache')
 709   pre_args += '-DENABLE_SHADER_CACHE'
 710 elif with_amd_vk
 711   error('Radv requires shader cache support')
 712 endif
 713
 714 # Check for GCC style builtins
 715 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 716              'ffsll', 'popcount', 'popcountll', 'unreachable']
 717   if cc.has_function(b)
 718     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 719   endif
 720 endforeach
 721
 722 # check for GCC __attribute__
 723 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 724              'warn_unused_result', 'weak',]
 725   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 726                  name : '__attribute__((@0@))'.format(a))
 727     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 728   endif
 729 endforeach
 730 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 731                name : '__attribute__((format(...)))')
 732   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 733 endif
 734 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 735                name : '__attribute__((packed))')
 736   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 737 endif
 738 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 739                name : '__attribute__((returns_nonnull))')
 740   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 741 endif
 742 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 743                   int foo_hid(void) __attribute__((visibility("hidden")));
 744                   int foo_int(void) __attribute__((visibility("internal")));
 745                   int foo_pro(void) __attribute__((visibility("protected")));''',
 746                name : '__attribute__((visibility(...)))')
 747   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 748 endif
 749 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 750                name : '__attribute__((alias(...)))')
 751   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 752 endif
 753 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 754                name : '__attribute__((__noreturn__))')
 755   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 756 endif
 757
 758 # TODO: this is very incomplete
 759 if ['linux', 'cygwin'].contains(host_machine.system())
 760   pre_args += '-D_GNU_SOURCE'
 761 endif
 762
 763 # Check for generic C arguments
 764 c_args = []
 765 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 766              '-Werror=missing-prototypes', '-fno-math-errno',
 767              '-fno-trapping-math', '-Qunused-arguments']
 768   if cc.has_argument(a)
 769     c_args += a
 770   endif
 771 endforeach
 772 c_vis_args = []
 773 if cc.has_argument('-fvisibility=hidden')
 774   c_vis_args += '-fvisibility=hidden'
 775 endif
 776
 777 # Check for generic C++ arguments
 778 cpp_args = []
 779 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 780              '-Qunused-arguments']
 781   if cpp.has_argument(a)
 782     cpp_args += a
 783   endif
 784 endforeach
 785
 786 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 787 # option is not supported. Hence, check for -Wfoo instead.
 788 if cpp.has_argument('-Wnon-virtual-dtor')
 789   cpp_args += '-Wno-non-virtual-dtor'
 790 endif
 791
 792 no_override_init_args = []
 793 foreach a : ['override-init', 'initializer-overrides']
 794   if cc.has_argument('-W' + a)
 795     no_override_init_args += '-Wno-' + a
 796   endif
 797 endforeach
 798
 799 cpp_vis_args = []
 800 if cpp.has_argument('-fvisibility=hidden')
 801   cpp_vis_args += '-fvisibility=hidden'
 802 endif
 803
 804 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 805 # in parts of the mesa code base that need to compile with old versions of
 806 # MSVC, mainly common code
 807 c_msvc_compat_args = []
 808 cpp_msvc_compat_args = []
 809 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 810   if cc.has_argument(a)
 811     c_msvc_compat_args += a
 812   endif
 813   if cpp.has_argument(a)
 814     cpp_msvc_compat_args += a
 815   endif
 816 endforeach
 817
 818 if host_machine.cpu_family().startswith('x86')
 819   pre_args += '-DUSE_SSE41'
 820   with_sse41 = true
 821   sse41_args = ['-msse4.1']
 822
 823   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 824   # that's not guaranteed
 825   if host_machine.cpu_family() == 'x86'
 826     sse41_args += '-mstackrealign'
 827   endif
 828 else
 829   with_sse41 = false
 830   sse41_args = []
 831 endif
 832
 833 # Check for GCC style atomics
 834 dep_atomic = null_dep
 835
 836 if cc.compiles('''#include <stdint.h>
 837                   int main() {
 838                     struct {
 839                       uint64_t *v;
 840                     } x;
 841                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 842                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 843
 844                   }''',
 845                name : 'GCC atomic builtins')
 846   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 847
 848   # Not all atomic calls can be turned into lock-free instructions, in which
 849   # GCC will make calls into the libatomic library. Check whether we need to
 850   # link with -latomic.
 851   #
 852   # This can happen for 64-bit atomic operations on 32-bit architectures such
 853   # as ARM.
 854   if not cc.links('''#include <stdint.h>
 855                      int main() {
 856                        struct {
 857                          uint64_t *v;
 858                        } x;
 859                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 860                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 861                      }''',
 862                   name : 'GCC atomic builtins required -latomic')
 863     dep_atomic = cc.find_library('atomic')
 864   endif
 865 endif
 866 if not cc.links('''#include <stdint.h>
 867                    uint64_t v;
 868                    int main() {
 869                      return __sync_add_and_fetch(&v, (uint64_t)1);
 870                    }''',
 871                 name : 'GCC 64bit atomics')
 872   pre_args += '-DMISSING_64_BIT_ATOMICS'
 873 endif
 874
 875 # TODO: shared/static? Is this even worth doing?
 876
 877 # When cross compiling we generally need to turn off the use of assembly,
 878 # because mesa's assembly relies on building an executable for the host system,
 879 # and running it to get information about struct sizes. There is at least one
 880 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 881 # host OS == build OS, since in that case the build machine can run the host's
 882 # binaries.
 883 if meson.is_cross_build()
 884   if build_machine.system() != host_machine.system()
 885     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 886     message('Cross compiling from one OS to another, disabling assembly.')
 887     with_asm = false
 888   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 889     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 890     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 891     # case.
 892     # TODO: There may be other cases where the 64 bit version of the
 893     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 894     message('''
 895       Cross compiling to different architectures, and the host cannot run
 896       the build machine's binaries. Disabling assembly.
 897     ''')
 898     with_asm = false
 899   endif
 900 endif
 901
 902 with_asm_arch = ''
 903 if with_asm
 904   if host_machine.cpu_family() == 'x86'
 905     if system_has_kms_drm
 906       with_asm_arch = 'x86'
 907       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 908                    '-DUSE_SSE_ASM']
 909
 910       if with_glx_read_only_text
 911          pre_args += ['-DGLX_X86_READONLY_TEXT']
 912       endif
 913     endif
 914   elif host_machine.cpu_family() == 'x86_64'
 915     if system_has_kms_drm
 916       with_asm_arch = 'x86_64'
 917       pre_args += ['-DUSE_X86_64_ASM']
 918     endif
 919   elif host_machine.cpu_family() == 'arm'
 920     if system_has_kms_drm
 921       with_asm_arch = 'arm'
 922       pre_args += ['-DUSE_ARM_ASM']
 923     endif
 924   elif host_machine.cpu_family() == 'aarch64'
 925     if system_has_kms_drm
 926       with_asm_arch = 'aarch64'
 927       pre_args += ['-DUSE_AARCH64_ASM']
 928     endif
 929   elif host_machine.cpu_family() == 'sparc64'
 930     if system_has_kms_drm
 931       with_asm_arch = 'sparc'
 932       pre_args += ['-DUSE_SPARC_ASM']
 933     endif
 934   elif host_machine.cpu_family() == 'ppc64le'
 935     if system_has_kms_drm
 936       with_asm_arch = 'ppc64le'
 937       pre_args += ['-DUSE_PPC64LE_ASM']
 938     endif
 939   endif
 940 endif
 941
 942 # Check for standard headers and functions
 943 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 944   pre_args += '-DMAJOR_IN_SYSMACROS'
 945 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 946   pre_args += '-DMAJOR_IN_MKDEV'
 947 endif
 948
 949 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h']
 950   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
 951     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 952   endif
 953 endforeach
 954
 955 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 956   if cc.has_function(f)
 957     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 958   endif
 959 endforeach
 960
 961 # strtod locale support
 962 if cc.links('''
 963     #define _GNU_SOURCE
 964     #include <stdlib.h>
 965     #include <locale.h>
 966     #ifdef HAVE_XLOCALE_H
 967     #include <xlocale.h>
 968     #endif
 969     int main() {
 970       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 971       const char *s = "1.0";
 972       char *end;
 973       double d = strtod_l(s, end, loc);
 974       float f = strtof_l(s, end, loc);
 975       freelocale(loc);
 976       return 0;
 977     }''',
 978     extra_args : pre_args,
 979     name : 'strtod has locale support')
 980   pre_args += '-DHAVE_STRTOD_L'
 981 endif
 982
 983 # Check for some linker flags
 984 ld_args_bsymbolic = []
 985 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 986   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 987 endif
 988 ld_args_gc_sections = []
 989 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 990             args : '-Wl,--gc-sections', name : 'gc-sections')
 991   ld_args_gc_sections += '-Wl,--gc-sections'
 992 endif
 993 with_ld_version_script = false
 994 if cc.links('int main() { return 0; }',
 995             args : '-Wl,--version-script=@0@'.format(
 996               join_paths(meson.source_root(), 'build-support/conftest.map')),
 997             name : 'version-script')
 998   with_ld_version_script = true
 999 endif
1000 with_ld_dynamic_list = false
1001 if cc.links('int main() { return 0; }',
1002             args : '-Wl,--dynamic-list=@0@'.format(
1003               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1004             name : 'dynamic-list')
1005   with_ld_dynamic_list = true
1006 endif
1007 ld_args_build_id = []
1008 if build_machine.system() != 'darwin'
1009    ld_args_build_id += '-Wl,--build-id=sha1'
1010 endif
1011
1012 # check for dl support
1013 if cc.has_function('dlopen')
1014   dep_dl = null_dep
1015 else
1016   dep_dl = cc.find_library('dl')
1017 endif
1018 if cc.has_function('dladdr', dependencies : dep_dl)
1019   # This is really only required for megadrivers
1020   pre_args += '-DHAVE_DLADDR'
1021 endif
1022
1023 if cc.has_function('dl_iterate_phdr')
1024   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1025 elif with_intel_vk
1026   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1027 elif with_dri_i965 and get_option('shader-cache')
1028   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1029 endif
1030
1031 # Determine whether or not the rt library is needed for time functions
1032 if cc.has_function('clock_gettime')
1033   dep_clock = null_dep
1034 else
1035   dep_clock = cc.find_library('rt')
1036 endif
1037
1038 # TODO: some of these may be conditional
1039 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1040 pre_args += '-DHAVE_ZLIB'
1041 dep_thread = dependency('threads')
1042 if dep_thread.found() and host_machine.system() != 'windows'
1043   pre_args += '-DHAVE_PTHREAD'
1044 endif
1045 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1046   dep_elf = dependency('libelf', required : false)
1047   if not dep_elf.found()
1048     dep_elf = cc.find_library('elf')
1049   endif
1050 else
1051   dep_elf = null_dep
1052 endif
1053 dep_expat = dependency('expat')
1054 # this only exists on linux so either this is linux and it will be found, or
1055 # its not linux and and wont
1056 dep_m = cc.find_library('m', required : false)
1057
1058 # Check for libdrm. various drivers have different libdrm version requirements,
1059 # but we always want to use the same version for all libdrm modules. That means
1060 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1061 # bar are both on use 2.4.3 for both of them
1062 dep_libdrm_amdgpu = null_dep
1063 dep_libdrm_radeon = null_dep
1064 dep_libdrm_nouveau = null_dep
1065 dep_libdrm_etnaviv = null_dep
1066 dep_libdrm_freedreno = null_dep
1067 dep_libdrm_intel = null_dep
1068
1069 _drm_amdgpu_ver = '2.4.91'
1070 _drm_radeon_ver = '2.4.71'
1071 _drm_nouveau_ver = '2.4.66'
1072 _drm_etnaviv_ver = '2.4.89'
1073 _drm_freedreno_ver = '2.4.92'
1074 _drm_intel_ver = '2.4.75'
1075 _drm_ver = '2.4.75'
1076
1077 _libdrm_checks = [
1078   ['intel', with_dri_i915 or with_gallium_i915],
1079   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1080   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1081               with_gallium_r300 or with_gallium_r600)],
1082   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1083   ['etnaviv', with_gallium_etnaviv],
1084   ['freedreno', with_gallium_freedreno],
1085 ]
1086
1087 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1088 # library.
1089 if with_gallium_vc4
1090   _drm_ver = '2.4.89'
1091 endif
1092
1093 # Loop over the enables versions and get the highest libdrm requirement for all
1094 # active drivers.
1095 foreach d : _libdrm_checks
1096   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1097   if d[1] and ver.version_compare('>' + _drm_ver)
1098     _drm_ver = ver
1099   endif
1100 endforeach
1101
1102 # Then get each libdrm module
1103 foreach d : _libdrm_checks
1104   if d[1]
1105     set_variable(
1106       'dep_libdrm_' + d[0],
1107       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1108     )
1109   endif
1110 endforeach
1111
1112 with_gallium_drisw_kms = false
1113 dep_libdrm = dependency(
1114   'libdrm', version : '>=' + _drm_ver,
1115   required : with_dri2 or with_dri3
1116 )
1117 if dep_libdrm.found()
1118   pre_args += '-DHAVE_LIBDRM'
1119   if with_dri_platform == 'drm' and with_dri
1120     with_gallium_drisw_kms = true
1121   endif
1122 endif
1123
1124 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1125 llvm_optional_modules = []
1126 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1127   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1128   if with_gallium_r600
1129     llvm_modules += 'asmparser'
1130   endif
1131 endif
1132 if with_gallium_opencl
1133   llvm_modules += [
1134     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1135     'lto', 'option', 'objcarcopts', 'profiledata',
1136   ]
1137   llvm_optional_modules += ['coroutines', 'opencl']
1138 endif
1139
1140 if with_amd_vk or with_gallium_radeonsi
1141   _llvm_version = '>= 5.0.0'
1142 elif with_gallium_swr
1143   _llvm_version = '>= 4.0.0'
1144 elif with_gallium_opencl or with_gallium_r600
1145   _llvm_version = '>= 3.9.0'
1146 else
1147   _llvm_version = '>= 3.3.0'
1148 endif
1149
1150 _llvm = get_option('llvm')
1151 if _llvm == 'auto'
1152   dep_llvm = dependency(
1153     'llvm',
1154     version : _llvm_version,
1155     modules : llvm_modules,
1156     optional_modules : llvm_optional_modules,
1157     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1158   )
1159   with_llvm = dep_llvm.found()
1160 elif _llvm == 'true'
1161   dep_llvm = dependency(
1162     'llvm',
1163     version : _llvm_version,
1164     modules : llvm_modules,
1165     optional_modules : llvm_optional_modules,
1166   )
1167   with_llvm = true
1168 else
1169   dep_llvm = null_dep
1170   with_llvm = false
1171 endif
1172 if with_llvm
1173   _llvm_version = dep_llvm.version().split('.')
1174   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1175   # that for our version checks.
1176   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1177   # strippped as of 0.44, but we support older meson versions.
1178
1179   # 3 digits versions in LLVM only started from 3.4.1 on
1180   if dep_llvm.version().version_compare('>= 3.4.1')
1181     _llvm_patch = _llvm_version[2]
1182   else
1183     _llvm_patch = '0'
1184   endif
1185
1186   if _llvm_patch.endswith('svn')
1187     _llvm_patch = _llvm_patch.split('s')[0]
1188   elif _llvm_patch.contains('git')
1189     _llvm_patch = _llvm_patch.split('g')[0]
1190   endif
1191   pre_args += [
1192     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1193     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1194   ]
1195
1196   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1197   # programs, so we need to build all C++ code in mesa without rtti as well to
1198   # ensure that linking works.
1199   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1200     cpp_args += '-fno-rtti'
1201   endif
1202 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1203   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1204 endif
1205
1206 dep_glvnd = null_dep
1207 if with_glvnd
1208   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1209   pre_args += '-DUSE_LIBGLVND=1'
1210 endif
1211
1212 if with_valgrind != 'false'
1213   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1214   if dep_valgrind.found()
1215     pre_args += '-DHAVE_VALGRIND'
1216   endif
1217 else
1218   dep_valgrind = null_dep
1219 endif
1220
1221 # pthread stubs. Lets not and say we didn't
1222
1223 prog_bison = find_program('bison', required : with_any_opengl)
1224 prog_flex = find_program('flex', required : with_any_opengl)
1225
1226 dep_selinux = null_dep
1227 if get_option('selinux')
1228   dep_selinux = dependency('libselinux')
1229   pre_args += '-DMESA_SELINUX'
1230 endif
1231
1232 if with_libunwind != 'false'
1233   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1234   if dep_unwind.found()
1235     pre_args += '-DHAVE_LIBUNWIND'
1236   endif
1237 else
1238   dep_unwind = null_dep
1239 endif
1240
1241 if with_osmesa != 'none'
1242   if with_osmesa == 'classic' and not with_dri_swrast
1243     error('OSMesa classic requires dri (classic) swrast.')
1244   endif
1245   if with_osmesa == 'gallium' and not with_gallium_softpipe
1246     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1247   endif
1248   osmesa_lib_name = 'OSMesa'
1249   osmesa_bits = get_option('osmesa-bits')
1250   if osmesa_bits != '8'
1251     if with_dri or with_glx != 'disabled'
1252       error('OSMesa bits must be 8 if building glx or dir based drivers')
1253     endif
1254     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1255     pre_args += [
1256       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1257     ]
1258   endif
1259 endif
1260
1261 # TODO: symbol mangling
1262
1263 if with_platform_wayland
1264   prog_wl_scanner = find_program('wayland-scanner')
1265   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1266   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1267   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1268   if with_egl
1269     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1270     dep_wayland_egl_headers = declare_dependency(
1271       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1272   endif
1273   wayland_dmabuf_xml = join_paths(
1274     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1275     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1276   )
1277   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1278 else
1279   prog_wl_scanner = []
1280   dep_wl_protocols = null_dep
1281   dep_wayland_client = null_dep
1282   dep_wayland_server = null_dep
1283   wayland_dmabuf_xml = ''
1284 endif
1285
1286 dep_x11 = null_dep
1287 dep_xext = null_dep
1288 dep_xdamage = null_dep
1289 dep_xfixes = null_dep
1290 dep_x11_xcb = null_dep
1291 dep_xcb = null_dep
1292 dep_xcb_glx = null_dep
1293 dep_xcb_dri2 = null_dep
1294 dep_xcb_dri3 = null_dep
1295 dep_dri2proto = null_dep
1296 dep_glproto = null_dep
1297 dep_xxf86vm = null_dep
1298 dep_xcb_dri3 = null_dep
1299 dep_xcb_present = null_dep
1300 dep_xcb_sync = null_dep
1301 dep_xcb_xfixes = null_dep
1302 dep_xshmfence = null_dep
1303 dep_xcb_xrandr = null_dep
1304 if with_platform_x11
1305   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1306     dep_x11 = dependency('x11')
1307     dep_xext = dependency('xext')
1308     dep_xcb = dependency('xcb')
1309   elif with_glx == 'dri'
1310     dep_x11 = dependency('x11')
1311     dep_xext = dependency('xext')
1312     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1313     dep_xfixes = dependency('xfixes')
1314     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1315     dep_xxf86vm = dependency('xxf86vm', required : false)
1316   endif
1317   if (with_any_vk or with_glx == 'dri' or
1318        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1319         with_gallium_omx != 'disabled'))
1320     dep_xcb = dependency('xcb')
1321     dep_x11_xcb = dependency('x11-xcb')
1322   endif
1323   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1324     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1325
1326     if with_dri3
1327       pre_args += '-DHAVE_DRI3'
1328       dep_xcb_dri3 = dependency('xcb-dri3')
1329       dep_xcb_present = dependency('xcb-present')
1330       # until xcb-dri3 has been around long enough to make a hard-dependency:
1331       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1332           dep_xcb_present.version().version_compare('>= 1.13'))
1333         pre_args += '-DHAVE_DRI3_MODIFIERS'
1334       endif
1335       dep_xcb_sync = dependency('xcb-sync')
1336       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1337     endif
1338   endif
1339   if with_glx == 'dri'
1340     if with_dri_platform == 'drm'
1341       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1342     endif
1343     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1344   endif
1345   if (with_egl or (
1346       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1347       with_gallium_omx != 'disabled'))
1348     dep_xcb_xfixes = dependency('xcb-xfixes')
1349   endif
1350   if with_xlib_lease
1351     dep_xcb_xrandr = dependency('xcb-randr', version : '>= 1.12')
1352   endif
1353 endif
1354
1355 if get_option('gallium-extra-hud')
1356   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1357 endif
1358
1359 _sensors = get_option('lmsensors')
1360 if _sensors != 'false'
1361   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1362   if dep_lmsensors.found()
1363     pre_args += '-DHAVE_LIBSENSORS=1'
1364   endif
1365 else
1366   dep_lmsensors = null_dep
1367 endif
1368
1369 foreach a : pre_args
1370   add_project_arguments(a, language : ['c', 'cpp'])
1371 endforeach
1372 foreach a : c_args
1373   add_project_arguments(a, language : ['c'])
1374 endforeach
1375 foreach a : cpp_args
1376   add_project_arguments(a, language : ['cpp'])
1377 endforeach
1378
1379 inc_include = include_directories('include')
1380
1381 gl_priv_reqs = []
1382
1383 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1384   gl_priv_reqs += ['x11', 'xext', 'xcb']
1385 elif with_glx == 'dri'
1386   gl_priv_reqs += [
1387     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1388     'xcb-glx >= 1.8.1']
1389   if with_dri_platform == 'drm'
1390     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1391   endif
1392 endif
1393 if dep_libdrm.found()
1394   gl_priv_reqs += 'libdrm >= 2.4.75'
1395 endif
1396 if dep_xxf86vm.found()
1397   gl_priv_reqs += 'xxf86vm'
1398 endif
1399
1400 gl_priv_libs = []
1401 if dep_thread.found()
1402   gl_priv_libs += ['-lpthread', '-pthread']
1403 endif
1404 if dep_m.found()
1405   gl_priv_libs += '-lm'
1406 endif
1407 if dep_dl.found()
1408   gl_priv_libs += '-ldl'
1409 endif
1410
1411 pkg = import('pkgconfig')
1412
1413 env_test = environment()
1414 env_test.set('NM', find_program('nm').path())
1415
1416 subdir('include')
1417 subdir('bin')
1418 subdir('src')