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