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   elif with_platform_x11 and with_any_opengl and not with_any_vk
 267     # The automatic behavior should not be to turn on xlib based glx when
 268     # building only vulkan drivers
 269     with_glx = 'xlib'
 270   else
 271     with_glx = 'disabled'
 272   endif
 273 endif
 274 if with_glx == 'dri'
 275    if with_gallium
 276       with_dri = true
 277    endif
 278 endif
 279
 280 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 281   with_gles1 = false
 282   with_gles2 = false
 283   with_opengl = false
 284   with_any_opengl = false
 285   with_shared_glapi = false
 286 endif
 287
 288 _gbm = get_option('gbm')
 289 if _gbm == 'auto'
 290   with_gbm = system_has_kms_drm and with_dri
 291 else
 292   with_gbm = _gbm == 'true'
 293 endif
 294 if with_gbm and not system_has_kms_drm
 295   error('GBM only supports DRM/KMS platforms')
 296 endif
 297
 298 _egl = get_option('egl')
 299 if _egl == 'auto'
 300   with_egl = with_dri and with_shared_glapi and with_platforms
 301 elif _egl == 'true'
 302   if not with_dri
 303     error('EGL requires dri')
 304   elif not with_shared_glapi
 305     error('EGL requires shared-glapi')
 306   elif not with_platforms
 307     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 308   elif not ['disabled', 'dri'].contains(with_glx)
 309     error('EGL requires dri, but a GLX is being built without dri')
 310   endif
 311   with_egl = true
 312 else
 313   with_egl = false
 314 endif
 315
 316 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 317   if with_gallium_radeonsi
 318     error('RadeonSI requires drm or surfaceless platform when using EGL')
 319   endif
 320   if with_gallium_virgl
 321     error('Virgl requires drm or surfaceless platform when using EGL')
 322   endif
 323 endif
 324
 325 pre_args += '-DGLX_USE_TLS'
 326 if with_glx != 'disabled'
 327   if not (with_platform_x11 and with_any_opengl)
 328     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 329   elif with_glx == 'gallium-xlib'
 330     if not with_gallium
 331       error('Gallium-xlib based GLX requires at least one gallium driver')
 332     elif not with_gallium_softpipe
 333       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 334     elif with_dri
 335       error('gallium-xlib conflicts with any dri driver')
 336     endif
 337   elif with_glx == 'xlib'
 338     if with_dri
 339       error('xlib conflicts with any dri driver')
 340     endif
 341   elif with_glx == 'dri'
 342     if not with_dri
 343       error('dri based GLX requires at least one DRI driver')
 344     elif not with_shared_glapi
 345       error('dri based GLX requires shared-glapi')
 346     endif
 347   endif
 348 endif
 349
 350 with_glvnd = get_option('glvnd')
 351 if with_glvnd
 352   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 353     error('Cannot build glvnd support for GLX that is not DRI based.')
 354   elif with_glx == 'disabled' and not with_egl
 355     error('glvnd requires DRI based GLX and/or EGL')
 356   endif
 357 endif
 358
 359 # TODO: toggle for this
 360 with_glx_direct = true
 361
 362 if with_vulkan_icd_dir == ''
 363   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 364 endif
 365
 366 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 367 _dri3 = get_option('dri3')
 368 if _dri3 == 'auto'
 369   with_dri3 = system_has_kms_drm and with_dri2
 370 else
 371   with_dri3 = _dri3 == 'true'
 372 endif
 373
 374 if with_any_vk and (with_platform_x11 and not with_dri3)
 375   error('Vulkan drivers require dri3 for X11 support')
 376 endif
 377 if with_dri or with_gallium
 378   if with_glx == 'disabled' and not with_egl and not with_platform_haiku
 379     error('building dri or gallium drivers require at least one window system')
 380   endif
 381 endif
 382
 383 prog_pkgconfig = find_program('pkg-config')
 384
 385 _vdpau = get_option('gallium-vdpau')
 386 if not system_has_kms_drm
 387   if _vdpau == 'true'
 388     error('VDPAU state tracker can only be build on unix-like OSes.')
 389   else
 390     _vdpau = 'false'
 391   endif
 392 elif not with_platform_x11
 393   if _vdpau == 'true'
 394     error('VDPAU state tracker requires X11 support.')
 395   else
 396     _vdpau = 'false'
 397   endif
 398 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 399           with_gallium_nouveau)
 400   if _vdpau == 'true'
 401     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 402   else
 403     _vdpau = 'false'
 404   endif
 405 endif
 406 dep_vdpau = null_dep
 407 with_gallium_vdpau = false
 408 if _vdpau != 'false'
 409   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'true')
 410   if dep_vdpau.found()
 411     dep_vdpau = declare_dependency(
 412       compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 413     )
 414     with_gallium_vdpau = true
 415   endif
 416 endif
 417
 418 if with_gallium_vdpau
 419   pre_args += '-DHAVE_ST_VDPAU'
 420 endif
 421 vdpau_drivers_path = get_option('vdpau-libs-path')
 422 if vdpau_drivers_path == ''
 423   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 424 endif
 425
 426 _xvmc = get_option('gallium-xvmc')
 427 if not system_has_kms_drm
 428   if _xvmc == 'true'
 429     error('XVMC state tracker can only be build on unix-like OSes.')
 430   else
 431     _xvmc = 'false'
 432   endif
 433 elif not with_platform_x11
 434   if _xvmc == 'true'
 435     error('XVMC state tracker requires X11 support.')
 436   else
 437     _xvmc = 'false'
 438   endif
 439 elif not (with_gallium_r600 or with_gallium_nouveau)
 440   if _xvmc == 'true'
 441     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 442   else
 443     _xvmc = 'false'
 444   endif
 445 endif
 446 dep_xvmc = null_dep
 447 with_gallium_xvmc = false
 448 if _xvmc != 'false'
 449   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'true')
 450   with_gallium_xvmc = dep_xvmc.found()
 451 endif
 452
 453 xvmc_drivers_path = get_option('xvmc-libs-path')
 454 if xvmc_drivers_path == ''
 455   xvmc_drivers_path = get_option('libdir')
 456 endif
 457
 458 _omx = get_option('gallium-omx')
 459 if not system_has_kms_drm
 460   if ['auto', 'disabled'].contains(_omx)
 461     _omx = 'disabled'
 462   else
 463     error('OMX state tracker can only be built on unix-like OSes.')
 464   endif
 465 elif not (with_platform_x11 or with_platform_drm)
 466   if ['auto', 'disabled'].contains(_omx)
 467     _omx = 'disabled'
 468   else
 469     error('OMX state tracker requires X11 or drm platform support.')
 470   endif
 471 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 472   if ['auto', 'disabled'].contains(_omx)
 473     _omx = 'disabled'
 474   else
 475     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 476   endif
 477 endif
 478 with_gallium_omx = _omx
 479 dep_omx = null_dep
 480 dep_omx_other = []
 481 if ['auto', 'bellagio'].contains(_omx)
 482   dep_omx = dependency(
 483     'libomxil-bellagio', required : _omx == 'bellagio'
 484   )
 485   if dep_omx.found()
 486     with_gallium_omx = 'bellagio'
 487   endif
 488 endif
 489 if ['auto', 'tizonia'].contains(_omx)
 490   if with_dri and with_egl
 491     dep_omx = dependency(
 492       'libtizonia', version : '>= 0.10.0',
 493       required : _omx == 'tizonia',
 494     )
 495     dep_omx_other = [
 496       dependency('libtizplatform', required : _omx == 'tizonia'),
 497       dependency('tizilheaders', required : _omx == 'tizonia'),
 498     ]
 499     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 500       with_gallium_omx = 'tizonia'
 501     endif
 502   elif _omx == 'tizonia'
 503     error('OMX-Tizonia state tracker requires dri and egl')
 504   endif
 505 endif
 506 if _omx == 'auto'
 507   with_gallium_omx = 'disabled'
 508 else
 509   with_gallium_omx = _omx
 510 endif
 511
 512 pre_args += [
 513   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 514   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 515 ]
 516
 517
 518 omx_drivers_path = get_option('omx-libs-path')
 519
 520 if with_gallium_omx != 'disabled'
 521   # Figure out where to put the omx driver.
 522   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 523   # argument to meson's get_pkgconfig_variable method.
 524   if omx_drivers_path == ''
 525     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 526     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 527     if _omx_libdir == get_option('libdir')
 528       omx_drivers_path = _omx_drivers_dir
 529     else
 530       _omx_base_dir = []
 531       # This will fail on windows. Does OMX run on windows?
 532       _omx_libdir = _omx_libdir.split('/')
 533       _omx_drivers_dir = _omx_drivers_dir.split('/')
 534       foreach o : _omx_drivers_dir
 535         if not _omx_libdir.contains(o)
 536           _omx_base_dir += o
 537         endif
 538       endforeach
 539       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 540     endif
 541   endif
 542 endif
 543
 544 _va = get_option('gallium-va')
 545 if not system_has_kms_drm
 546   if _va == 'true'
 547     error('VA state tracker can only be built on unix-like OSes.')
 548   else
 549     _va = 'false'
 550   endif
 551 elif not (with_platform_x11 or with_platform_drm)
 552   if _va == 'true'
 553     error('VA state tracker requires X11 or drm or wayland platform support.')
 554   else
 555     _va = 'false'
 556   endif
 557 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 558   if _va == 'true'
 559     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 560   else
 561     _va = 'false'
 562   endif
 563 elif _va == 'auto'
 564   _va = 'true'
 565 endif
 566 with_gallium_va = false
 567 dep_va = null_dep
 568 if _va != 'false'
 569   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'true')
 570   if dep_va.found()
 571     dep_va_headers = declare_dependency(
 572       compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 573     )
 574     with_gallium_va = true
 575   endif
 576 endif
 577
 578 va_drivers_path = get_option('va-libs-path')
 579 if va_drivers_path == ''
 580   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 581 endif
 582
 583 _xa = get_option('gallium-xa')
 584 if not system_has_kms_drm
 585   if _xa == 'true'
 586     error('XA state tracker can only be built on unix-like OSes.')
 587   else
 588     _xa = 'false'
 589   endif
 590 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 591           or with_gallium_svga)
 592   if _xa == 'true'
 593     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 594   else
 595     _xa = 'false'
 596   endif
 597 endif
 598 with_gallium_xa = _xa != 'false'
 599
 600 d3d_drivers_path = get_option('d3d-drivers-path')
 601 if d3d_drivers_path == ''
 602   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 603 endif
 604
 605 with_gallium_st_nine =  get_option('gallium-nine')
 606 if with_gallium_st_nine
 607   if not with_gallium_softpipe
 608     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 609   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 610             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 611     error('The nine state tracker requires at least on non-swrast gallium driver.')
 612   endif
 613   if not with_dri3
 614     error('Using nine with wine requires dri3')
 615   endif
 616 endif
 617
 618 if get_option('power8') != 'false'
 619   if host_machine.cpu_family() == 'ppc64le'
 620     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 621       error('Altivec is not supported with gcc version < 4.8.')
 622     endif
 623     if cc.compiles('''
 624         #include <altivec.h>
 625         int main() {
 626           vector unsigned char r;
 627           vector unsigned int v = vec_splat_u32 (1);
 628           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 629           return 0;
 630         }''',
 631         args : '-mpower8-vector',
 632         name : 'POWER8 intrinsics')
 633       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 634     elif get_option('power8') == 'true'
 635       error('POWER8 intrinsic support required but not found.')
 636     endif
 637   endif
 638 endif
 639
 640 _opencl = get_option('gallium-opencl')
 641 if _opencl != 'disabled'
 642   if not with_gallium
 643     error('OpenCL Clover implementation requires at least one gallium driver.')
 644   endif
 645
 646   dep_clc = dependency('libclc')
 647   with_gallium_opencl = true
 648   with_opencl_icd = _opencl == 'icd'
 649 else
 650   dep_clc = null_dep
 651   with_gallium_opencl = false
 652   with_gallium_icd = false
 653 endif
 654
 655 gl_pkgconfig_c_flags = []
 656 if with_platform_x11
 657   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 658     pre_args += '-DHAVE_X11_PLATFORM'
 659   endif
 660   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 661     pre_args += '-DUSE_XSHM'
 662   else
 663     pre_args += '-DGLX_INDIRECT_RENDERING'
 664     if with_glx_direct
 665       pre_args += '-DGLX_DIRECT_RENDERING'
 666     endif
 667     if with_dri_platform == 'drm'
 668       pre_args += '-DGLX_USE_DRM'
 669     elif with_dri_platform == 'apple'
 670       pre_args += '-DGLX_USE_APPLEGL'
 671     elif with_dri_platform == 'windows'
 672       pre_args += '-DGLX_USE_WINDOWSGL'
 673     endif
 674   endif
 675 else
 676   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 677   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 678 endif
 679 if with_platform_drm
 680   if with_egl and not with_gbm
 681     error('EGL drm platform requires gbm')
 682   endif
 683   pre_args += '-DHAVE_DRM_PLATFORM'
 684 endif
 685 if with_platform_surfaceless
 686   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 687 endif
 688 if with_platform_android
 689   dep_android = [
 690     dependency('cutils'),
 691     dependency('hardware'),
 692     dependency('sync'),
 693   ]
 694   pre_args += '-DHAVE_ANDROID_PLATFORM'
 695 endif
 696 if with_platform_haiku
 697   pre_args += '-DHAVE_HAIKU_PLATFORM'
 698 endif
 699
 700 prog_python2 = find_program('python2')
 701 has_mako = run_command(prog_python2, '-c', 'import mako')
 702 if has_mako.returncode() != 0
 703   error('Python (2.x) mako module required to build mesa.')
 704 endif
 705
 706 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 707   error('When using GCC, version 4.4.6 or later is required.')
 708 endif
 709
 710 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 711 if get_option('buildtype') == 'debug'
 712   pre_args += '-DDEBUG'
 713 endif
 714
 715 if get_option('shader-cache')
 716   pre_args += '-DENABLE_SHADER_CACHE'
 717 elif with_amd_vk
 718   error('Radv requires shader cache support')
 719 endif
 720
 721 # Check for GCC style builtins
 722 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 723              'ffsll', 'popcount', 'popcountll', 'unreachable']
 724   if cc.has_function(b)
 725     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 726   endif
 727 endforeach
 728
 729 # check for GCC __attribute__
 730 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 731              'warn_unused_result', 'weak',]
 732   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 733                  name : '__attribute__((@0@))'.format(a))
 734     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 735   endif
 736 endforeach
 737 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 738                name : '__attribute__((format(...)))')
 739   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 740 endif
 741 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 742                name : '__attribute__((packed))')
 743   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 744 endif
 745 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 746                name : '__attribute__((returns_nonnull))')
 747   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 748 endif
 749 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 750                   int foo_hid(void) __attribute__((visibility("hidden")));
 751                   int foo_int(void) __attribute__((visibility("internal")));
 752                   int foo_pro(void) __attribute__((visibility("protected")));''',
 753                name : '__attribute__((visibility(...)))')
 754   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 755 endif
 756 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 757                name : '__attribute__((alias(...)))')
 758   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 759 endif
 760 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 761                name : '__attribute__((__noreturn__))')
 762   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 763 endif
 764
 765 # TODO: this is very incomplete
 766 if ['linux', 'cygwin'].contains(host_machine.system())
 767   pre_args += '-D_GNU_SOURCE'
 768 endif
 769
 770 # Check for generic C arguments
 771 c_args = []
 772 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 773              '-Werror=missing-prototypes', '-fno-math-errno',
 774              '-fno-trapping-math', '-Qunused-arguments']
 775   if cc.has_argument(a)
 776     c_args += a
 777   endif
 778 endforeach
 779 if cc.has_argument('-Wmissing-field-initializers')
 780   c_args += '-Wno-missing-field-initializers'
 781 endif
 782
 783 c_vis_args = []
 784 if cc.has_argument('-fvisibility=hidden')
 785   c_vis_args += '-fvisibility=hidden'
 786 endif
 787
 788 # Check for generic C++ arguments
 789 cpp_args = []
 790 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 791              '-Qunused-arguments']
 792   if cpp.has_argument(a)
 793     cpp_args += a
 794   endif
 795 endforeach
 796
 797 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 798 # option is not supported. Hence, check for -Wfoo instead.
 799
 800 foreach a : ['non-virtual-dtor', 'missing-field-initializers']
 801   if cpp.has_argument('-W' + a)
 802     cpp_args += '-Wno-' + a
 803   endif
 804 endforeach
 805
 806 no_override_init_args = []
 807 foreach a : ['override-init', 'initializer-overrides']
 808   if cc.has_argument('-W' + a)
 809     no_override_init_args += '-Wno-' + a
 810   endif
 811 endforeach
 812
 813 cpp_vis_args = []
 814 if cpp.has_argument('-fvisibility=hidden')
 815   cpp_vis_args += '-fvisibility=hidden'
 816 endif
 817
 818 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 819 # in parts of the mesa code base that need to compile with old versions of
 820 # MSVC, mainly common code
 821 c_msvc_compat_args = []
 822 cpp_msvc_compat_args = []
 823 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 824   if cc.has_argument(a)
 825     c_msvc_compat_args += a
 826   endif
 827   if cpp.has_argument(a)
 828     cpp_msvc_compat_args += a
 829   endif
 830 endforeach
 831
 832 if host_machine.cpu_family().startswith('x86')
 833   pre_args += '-DUSE_SSE41'
 834   with_sse41 = true
 835   sse41_args = ['-msse4.1']
 836
 837   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 838   # that's not guaranteed
 839   if host_machine.cpu_family() == 'x86'
 840     sse41_args += '-mstackrealign'
 841   endif
 842 else
 843   with_sse41 = false
 844   sse41_args = []
 845 endif
 846
 847 # Check for GCC style atomics
 848 dep_atomic = null_dep
 849
 850 if cc.compiles('''#include <stdint.h>
 851                   int main() {
 852                     struct {
 853                       uint64_t *v;
 854                     } x;
 855                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 856                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 857
 858                   }''',
 859                name : 'GCC atomic builtins')
 860   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 861
 862   # Not all atomic calls can be turned into lock-free instructions, in which
 863   # GCC will make calls into the libatomic library. Check whether we need to
 864   # link with -latomic.
 865   #
 866   # This can happen for 64-bit atomic operations on 32-bit architectures such
 867   # as ARM.
 868   if not cc.links('''#include <stdint.h>
 869                      int main() {
 870                        struct {
 871                          uint64_t *v;
 872                        } x;
 873                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 874                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 875                      }''',
 876                   name : 'GCC atomic builtins required -latomic')
 877     dep_atomic = cc.find_library('atomic')
 878   endif
 879 endif
 880 if not cc.links('''#include <stdint.h>
 881                    uint64_t v;
 882                    int main() {
 883                      return __sync_add_and_fetch(&v, (uint64_t)1);
 884                    }''',
 885                 name : 'GCC 64bit atomics')
 886   pre_args += '-DMISSING_64_BIT_ATOMICS'
 887 endif
 888
 889 # TODO: shared/static? Is this even worth doing?
 890
 891 # When cross compiling we generally need to turn off the use of assembly,
 892 # because mesa's assembly relies on building an executable for the host system,
 893 # and running it to get information about struct sizes. There is at least one
 894 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 895 # host OS == build OS, since in that case the build machine can run the host's
 896 # binaries.
 897 if meson.is_cross_build()
 898   if build_machine.system() != host_machine.system()
 899     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 900     message('Cross compiling from one OS to another, disabling assembly.')
 901     with_asm = false
 902   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 903     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 904     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 905     # case.
 906     # TODO: There may be other cases where the 64 bit version of the
 907     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 908     message('''
 909       Cross compiling to different architectures, and the host cannot run
 910       the build machine's binaries. Disabling assembly.
 911     ''')
 912     with_asm = false
 913   endif
 914 endif
 915
 916 with_asm_arch = ''
 917 if with_asm
 918   if host_machine.cpu_family() == 'x86'
 919     if system_has_kms_drm
 920       with_asm_arch = 'x86'
 921       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 922                    '-DUSE_SSE_ASM']
 923
 924       if with_glx_read_only_text
 925          pre_args += ['-DGLX_X86_READONLY_TEXT']
 926       endif
 927     endif
 928   elif host_machine.cpu_family() == 'x86_64'
 929     if system_has_kms_drm
 930       with_asm_arch = 'x86_64'
 931       pre_args += ['-DUSE_X86_64_ASM']
 932     endif
 933   elif host_machine.cpu_family() == 'arm'
 934     if system_has_kms_drm
 935       with_asm_arch = 'arm'
 936       pre_args += ['-DUSE_ARM_ASM']
 937     endif
 938   elif host_machine.cpu_family() == 'aarch64'
 939     if system_has_kms_drm
 940       with_asm_arch = 'aarch64'
 941       pre_args += ['-DUSE_AARCH64_ASM']
 942     endif
 943   elif host_machine.cpu_family() == 'sparc64'
 944     if system_has_kms_drm
 945       with_asm_arch = 'sparc'
 946       pre_args += ['-DUSE_SPARC_ASM']
 947     endif
 948   elif host_machine.cpu_family() == 'ppc64le'
 949     if system_has_kms_drm
 950       with_asm_arch = 'ppc64le'
 951       pre_args += ['-DUSE_PPC64LE_ASM']
 952     endif
 953   endif
 954 endif
 955
 956 # Check for standard headers and functions
 957 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 958   pre_args += '-DMAJOR_IN_SYSMACROS'
 959 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 960   pre_args += '-DMAJOR_IN_MKDEV'
 961 endif
 962
 963 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h']
 964   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
 965     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 966   endif
 967 endforeach
 968
 969 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 970   if cc.has_function(f)
 971     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 972   endif
 973 endforeach
 974
 975 # strtod locale support
 976 if cc.links('''
 977     #define _GNU_SOURCE
 978     #include <stdlib.h>
 979     #include <locale.h>
 980     #ifdef HAVE_XLOCALE_H
 981     #include <xlocale.h>
 982     #endif
 983     int main() {
 984       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 985       const char *s = "1.0";
 986       char *end;
 987       double d = strtod_l(s, end, loc);
 988       float f = strtof_l(s, end, loc);
 989       freelocale(loc);
 990       return 0;
 991     }''',
 992     extra_args : pre_args,
 993     name : 'strtod has locale support')
 994   pre_args += '-DHAVE_STRTOD_L'
 995 endif
 996
 997 # Check for some linker flags
 998 ld_args_bsymbolic = []
 999 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1000   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1001 endif
1002 ld_args_gc_sections = []
1003 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1004             args : '-Wl,--gc-sections', name : 'gc-sections')
1005   ld_args_gc_sections += '-Wl,--gc-sections'
1006 endif
1007 with_ld_version_script = false
1008 if cc.links('int main() { return 0; }',
1009             args : '-Wl,--version-script=@0@'.format(
1010               join_paths(meson.source_root(), 'build-support/conftest.map')),
1011             name : 'version-script')
1012   with_ld_version_script = true
1013 endif
1014 with_ld_dynamic_list = false
1015 if cc.links('int main() { return 0; }',
1016             args : '-Wl,--dynamic-list=@0@'.format(
1017               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1018             name : 'dynamic-list')
1019   with_ld_dynamic_list = true
1020 endif
1021 ld_args_build_id = []
1022 if build_machine.system() != 'darwin'
1023    ld_args_build_id += '-Wl,--build-id=sha1'
1024 endif
1025
1026 # check for dl support
1027 if cc.has_function('dlopen')
1028   dep_dl = null_dep
1029 else
1030   dep_dl = cc.find_library('dl')
1031 endif
1032 if cc.has_function('dladdr', dependencies : dep_dl)
1033   # This is really only required for megadrivers
1034   pre_args += '-DHAVE_DLADDR'
1035 endif
1036
1037 if cc.has_function('dl_iterate_phdr')
1038   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1039 elif with_intel_vk
1040   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1041 elif with_dri_i965 and get_option('shader-cache')
1042   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1043 endif
1044
1045 # Determine whether or not the rt library is needed for time functions
1046 if cc.has_function('clock_gettime')
1047   dep_clock = null_dep
1048 else
1049   dep_clock = cc.find_library('rt')
1050 endif
1051
1052 # TODO: some of these may be conditional
1053 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1054 pre_args += '-DHAVE_ZLIB'
1055 dep_thread = dependency('threads')
1056 if dep_thread.found() and host_machine.system() != 'windows'
1057   pre_args += '-DHAVE_PTHREAD'
1058 endif
1059 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1060   dep_elf = dependency('libelf', required : false)
1061   if not dep_elf.found()
1062     dep_elf = cc.find_library('elf')
1063   endif
1064 else
1065   dep_elf = null_dep
1066 endif
1067 dep_expat = dependency('expat')
1068 # this only exists on linux so either this is linux and it will be found, or
1069 # its not linux and and wont
1070 dep_m = cc.find_library('m', required : false)
1071
1072 # Check for libdrm. various drivers have different libdrm version requirements,
1073 # but we always want to use the same version for all libdrm modules. That means
1074 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1075 # bar are both on use 2.4.3 for both of them
1076 dep_libdrm_amdgpu = null_dep
1077 dep_libdrm_radeon = null_dep
1078 dep_libdrm_nouveau = null_dep
1079 dep_libdrm_etnaviv = null_dep
1080 dep_libdrm_freedreno = null_dep
1081 dep_libdrm_intel = null_dep
1082
1083 _drm_amdgpu_ver = '2.4.91'
1084 _drm_radeon_ver = '2.4.71'
1085 _drm_nouveau_ver = '2.4.66'
1086 _drm_etnaviv_ver = '2.4.89'
1087 _drm_freedreno_ver = '2.4.92'
1088 _drm_intel_ver = '2.4.75'
1089 _drm_ver = '2.4.75'
1090
1091 _libdrm_checks = [
1092   ['intel', with_dri_i915 or with_gallium_i915],
1093   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1094   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1095               with_gallium_r300 or with_gallium_r600)],
1096   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1097   ['etnaviv', with_gallium_etnaviv],
1098   ['freedreno', with_gallium_freedreno],
1099 ]
1100
1101 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1102 # library.
1103 if with_gallium_vc4
1104   _drm_ver = '2.4.89'
1105 endif
1106
1107 # Loop over the enables versions and get the highest libdrm requirement for all
1108 # active drivers.
1109 foreach d : _libdrm_checks
1110   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1111   if d[1] and ver.version_compare('>' + _drm_ver)
1112     _drm_ver = ver
1113   endif
1114 endforeach
1115
1116 # Then get each libdrm module
1117 foreach d : _libdrm_checks
1118   if d[1]
1119     set_variable(
1120       'dep_libdrm_' + d[0],
1121       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1122     )
1123   endif
1124 endforeach
1125
1126 with_gallium_drisw_kms = false
1127 dep_libdrm = dependency(
1128   'libdrm', version : '>=' + _drm_ver,
1129   required : with_dri2 or with_dri3
1130 )
1131 if dep_libdrm.found()
1132   pre_args += '-DHAVE_LIBDRM'
1133   if with_dri_platform == 'drm' and with_dri
1134     with_gallium_drisw_kms = true
1135   endif
1136 endif
1137
1138 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1139 llvm_optional_modules = []
1140 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1141   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1142   if with_gallium_r600
1143     llvm_modules += 'asmparser'
1144   endif
1145 endif
1146 if with_gallium_opencl
1147   llvm_modules += [
1148     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1149     'lto', 'option', 'objcarcopts', 'profiledata',
1150   ]
1151   llvm_optional_modules += ['coroutines', 'opencl']
1152 endif
1153
1154 if with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1155   _llvm_version = '>= 5.0.0'
1156 elif with_gallium_opencl or with_gallium_r600
1157   _llvm_version = '>= 3.9.0'
1158 else
1159   _llvm_version = '>= 3.3.0'
1160 endif
1161
1162 _llvm = get_option('llvm')
1163 if _llvm == 'auto'
1164   dep_llvm = dependency(
1165     'llvm',
1166     version : _llvm_version,
1167     modules : llvm_modules,
1168     optional_modules : llvm_optional_modules,
1169     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1170   )
1171   with_llvm = dep_llvm.found()
1172 elif _llvm == 'true'
1173   dep_llvm = dependency(
1174     'llvm',
1175     version : _llvm_version,
1176     modules : llvm_modules,
1177     optional_modules : llvm_optional_modules,
1178   )
1179   with_llvm = true
1180 else
1181   dep_llvm = null_dep
1182   with_llvm = false
1183 endif
1184 if with_llvm
1185   _llvm_version = dep_llvm.version().split('.')
1186   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1187   # that for our version checks.
1188   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1189   # strippped as of 0.44, but we support older meson versions.
1190
1191   # 3 digits versions in LLVM only started from 3.4.1 on
1192   if dep_llvm.version().version_compare('>= 3.4.1')
1193     _llvm_patch = _llvm_version[2]
1194   else
1195     _llvm_patch = '0'
1196   endif
1197
1198   if _llvm_patch.endswith('svn')
1199     _llvm_patch = _llvm_patch.split('s')[0]
1200   elif _llvm_patch.contains('git')
1201     _llvm_patch = _llvm_patch.split('g')[0]
1202   endif
1203   pre_args += [
1204     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1205     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1206   ]
1207
1208   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1209   # programs, so we need to build all C++ code in mesa without rtti as well to
1210   # ensure that linking works.
1211   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1212     cpp_args += '-fno-rtti'
1213   endif
1214 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1215   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1216 endif
1217
1218 dep_glvnd = null_dep
1219 if with_glvnd
1220   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1221   pre_args += '-DUSE_LIBGLVND=1'
1222 endif
1223
1224 if with_valgrind != 'false'
1225   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1226   if dep_valgrind.found()
1227     pre_args += '-DHAVE_VALGRIND'
1228   endif
1229 else
1230   dep_valgrind = null_dep
1231 endif
1232
1233 # pthread stubs. Lets not and say we didn't
1234
1235 prog_bison = find_program('bison', required : with_any_opengl)
1236 prog_flex = find_program('flex', required : with_any_opengl)
1237
1238 dep_selinux = null_dep
1239 if get_option('selinux')
1240   dep_selinux = dependency('libselinux')
1241   pre_args += '-DMESA_SELINUX'
1242 endif
1243
1244 if with_libunwind != 'false'
1245   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1246   if dep_unwind.found()
1247     pre_args += '-DHAVE_LIBUNWIND'
1248   endif
1249 else
1250   dep_unwind = null_dep
1251 endif
1252
1253 if with_osmesa != 'none'
1254   if with_osmesa == 'classic' and not with_dri_swrast
1255     error('OSMesa classic requires dri (classic) swrast.')
1256   endif
1257   if with_osmesa == 'gallium' and not with_gallium_softpipe
1258     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1259   endif
1260   osmesa_lib_name = 'OSMesa'
1261   osmesa_bits = get_option('osmesa-bits')
1262   if osmesa_bits != '8'
1263     if with_dri or with_glx != 'disabled'
1264       error('OSMesa bits must be 8 if building glx or dir based drivers')
1265     endif
1266     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1267     pre_args += [
1268       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1269     ]
1270   endif
1271 endif
1272
1273 # TODO: symbol mangling
1274
1275 if with_platform_wayland
1276   prog_wl_scanner = find_program('wayland-scanner')
1277   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1278   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1279   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1280   if with_egl
1281     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1282     dep_wayland_egl_headers = declare_dependency(
1283       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1284   endif
1285   wayland_dmabuf_xml = join_paths(
1286     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1287     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1288   )
1289   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1290 else
1291   prog_wl_scanner = []
1292   dep_wl_protocols = null_dep
1293   dep_wayland_client = null_dep
1294   dep_wayland_server = null_dep
1295   wayland_dmabuf_xml = ''
1296 endif
1297
1298 dep_x11 = null_dep
1299 dep_xext = null_dep
1300 dep_xdamage = null_dep
1301 dep_xfixes = null_dep
1302 dep_x11_xcb = null_dep
1303 dep_xcb = null_dep
1304 dep_xcb_glx = null_dep
1305 dep_xcb_dri2 = null_dep
1306 dep_xcb_dri3 = null_dep
1307 dep_dri2proto = null_dep
1308 dep_glproto = null_dep
1309 dep_xxf86vm = null_dep
1310 dep_xcb_dri3 = null_dep
1311 dep_xcb_present = null_dep
1312 dep_xcb_sync = null_dep
1313 dep_xcb_xfixes = null_dep
1314 dep_xshmfence = null_dep
1315 dep_xcb_xrandr = null_dep
1316 dep_xlib_xrandr = null_dep
1317 if with_platform_x11
1318   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1319     dep_x11 = dependency('x11')
1320     dep_xext = dependency('xext')
1321     dep_xcb = dependency('xcb')
1322   elif with_glx == 'dri'
1323     dep_x11 = dependency('x11')
1324     dep_xext = dependency('xext')
1325     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1326     dep_xfixes = dependency('xfixes')
1327     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1328     dep_xxf86vm = dependency('xxf86vm', required : false)
1329   endif
1330   if (with_any_vk or with_glx == 'dri' or
1331        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1332         with_gallium_omx != 'disabled'))
1333     dep_xcb = dependency('xcb')
1334     dep_x11_xcb = dependency('x11-xcb')
1335   endif
1336   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1337     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1338
1339     if with_dri3
1340       pre_args += '-DHAVE_DRI3'
1341       dep_xcb_dri3 = dependency('xcb-dri3')
1342       dep_xcb_present = dependency('xcb-present')
1343       # until xcb-dri3 has been around long enough to make a hard-dependency:
1344       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1345           dep_xcb_present.version().version_compare('>= 1.13'))
1346         pre_args += '-DHAVE_DRI3_MODIFIERS'
1347       endif
1348       dep_xcb_sync = dependency('xcb-sync')
1349       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1350     endif
1351   endif
1352   if with_glx == 'dri'
1353     if with_dri_platform == 'drm'
1354       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1355     endif
1356     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1357   endif
1358   if (with_egl or (
1359       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1360       with_gallium_omx != 'disabled'))
1361     dep_xcb_xfixes = dependency('xcb-xfixes')
1362   endif
1363   if with_xlib_lease
1364     dep_xcb_xrandr = dependency('xcb-randr', version : '>= 1.12')
1365     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1366   endif
1367 endif
1368
1369 if get_option('gallium-extra-hud')
1370   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1371 endif
1372
1373 _sensors = get_option('lmsensors')
1374 if _sensors != 'false'
1375   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1376   if dep_lmsensors.found()
1377     pre_args += '-DHAVE_LIBSENSORS=1'
1378   endif
1379 else
1380   dep_lmsensors = null_dep
1381 endif
1382
1383 foreach a : pre_args
1384   add_project_arguments(a, language : ['c', 'cpp'])
1385 endforeach
1386 foreach a : c_args
1387   add_project_arguments(a, language : ['c'])
1388 endforeach
1389 foreach a : cpp_args
1390   add_project_arguments(a, language : ['cpp'])
1391 endforeach
1392
1393 inc_include = include_directories('include')
1394
1395 gl_priv_reqs = []
1396
1397 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1398   gl_priv_reqs += ['x11', 'xext', 'xcb']
1399 elif with_glx == 'dri'
1400   gl_priv_reqs += [
1401     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1402     'xcb-glx >= 1.8.1']
1403   if with_dri_platform == 'drm'
1404     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1405   endif
1406 endif
1407 if dep_libdrm.found()
1408   gl_priv_reqs += 'libdrm >= 2.4.75'
1409 endif
1410 if dep_xxf86vm.found()
1411   gl_priv_reqs += 'xxf86vm'
1412 endif
1413
1414 gl_priv_libs = []
1415 if dep_thread.found()
1416   gl_priv_libs += ['-lpthread', '-pthread']
1417 endif
1418 if dep_m.found()
1419   gl_priv_libs += '-lm'
1420 endif
1421 if dep_dl.found()
1422   gl_priv_libs += '-ldl'
1423 endif
1424
1425 pkg = import('pkgconfig')
1426
1427 env_test = environment()
1428 env_test.set('NM', find_program('nm').path())
1429
1430 subdir('include')
1431 subdir('bin')
1432 subdir('src')