meson.build

   1 # Copyright © 2017 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 : '>= 0.42',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 # Arguments for the preprocessor, put these in a separate array from the C and
  33 # C++ (cpp in meson terminology) arguments since they need to be added to the
  34 # default arguments for both C and C++.
  35 pre_args = [
  36   '-D__STDC_CONSTANT_MACROS',
  37   '-D__STDC_FORMAT_MACROS',
  38   '-D__STDC_LIMIT_MACROS',
  39   '-DVERSION="@0@"'.format(meson.project_version()),
  40   '-DPACKAGE_VERSION=VERSION',
  41   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  42 ]
  43
  44 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  45 with_tests = get_option('build-tests')
  46 with_valgrind = get_option('valgrind')
  47 with_libunwind = get_option('libunwind')
  48 with_asm = get_option('asm')
  49 with_llvm = get_option('llvm')
  50 with_osmesa = get_option('osmesa')
  51 if get_option('texture-float')
  52   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  53   message('WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  54 endif
  55
  56 # XXX: yeah, do these
  57 with_appledri = false
  58 with_windowsdri = false
  59
  60 dri_drivers_path = get_option('dri-drivers-path')
  61 if dri_drivers_path == ''
  62   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  63 endif
  64
  65 with_gles1 = get_option('gles1')
  66 with_gles2 = get_option('gles2')
  67 with_opengl = get_option('opengl')
  68 with_any_opengl = with_opengl or with_gles1 or with_gles2
  69 # Only build shared_glapi if at least one OpenGL API is enabled
  70 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  71
  72
  73 # shared-glapi is required if at least two OpenGL APIs are being built
  74 if not with_shared_glapi
  75   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  76       or (with_gles2 and with_opengl))
  77     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  78   endif
  79 endif
  80
  81 # We require OpenGL for OpenGL ES
  82 if (with_gles1 or with_gles2) and not with_opengl
  83   error('building OpenGL ES without OpenGL is not supported.')
  84 endif
  85
  86 with_dri = false
  87 with_dri_i915 = false
  88 with_dri_i965 = false
  89 with_dri_r100 = false
  90 with_dri_r200 = false
  91 with_dri_nouveau = false
  92 with_dri_swrast = false
  93 _drivers = get_option('dri-drivers')
  94 if _drivers == 'auto'
  95   # TODO: PPC, Sparc
  96   if not ['darwin', 'windows'].contains(host_machine.system())
  97     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
  98       _drivers = 'i915,i965,r100,r200,nouveau'
  99     else
 100       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 101     endif
 102   else
 103     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 104   endif
 105 endif
 106 if _drivers != ''
 107   _split = _drivers.split(',')
 108   with_dri_i915 = _split.contains('i915')
 109   with_dri_i965 = _split.contains('i965')
 110   with_dri_r100 = _split.contains('r100')
 111   with_dri_r200 = _split.contains('r200')
 112   with_dri_nouveau = _split.contains('nouveau')
 113   with_dri_swrast = _split.contains('swrast')
 114   with_dri = true
 115 endif
 116
 117 with_gallium = false
 118 with_gallium_pl111 = false
 119 with_gallium_radeonsi = false
 120 with_gallium_nouveau = false
 121 with_gallium_freedreno = false
 122 with_gallium_softpipe = false
 123 with_gallium_vc4 = false
 124 with_gallium_vc5 = false
 125 with_gallium_etnaviv = false
 126 with_gallium_imx = false
 127 _drivers = get_option('gallium-drivers')
 128 if _drivers == 'auto'
 129   if not ['darwin', 'windows'].contains(host_machine.system())
 130     # TODO: PPC, Sparc
 131     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 132       _drivers = 'radeonsi,nouveau,swrast'
 133     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 134       _drivers = 'pl111,vc4,vc5,freedreno,etnaviv,imx,swrast'
 135     else
 136       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 137     endif
 138   else
 139     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 140   endif
 141 endif
 142 if _drivers != ''
 143   _split = _drivers.split(',')
 144   with_gallium_pl111 = _split.contains('pl111')
 145   with_gallium_radeonsi = _split.contains('radeonsi')
 146   with_gallium_nouveau = _split.contains('nouveau')
 147   with_gallium_freedreno = _split.contains('freedreno')
 148   with_gallium_softpipe = _split.contains('swrast')
 149   with_gallium_vc4 = _split.contains('vc4')
 150   with_gallium_vc5 = _split.contains('vc5')
 151   with_gallium_etnaviv = _split.contains('etnaviv')
 152   with_gallium_imx = _split.contains('imx')
 153   with_gallium = true
 154 endif
 155
 156 with_intel_vk = false
 157 with_amd_vk = false
 158 with_any_vk = false
 159 _vulkan_drivers = get_option('vulkan-drivers')
 160 if _vulkan_drivers == 'auto'
 161   if not ['darwin', 'windows'].contains(host_machine.system())
 162     if host_machine.cpu_family().startswith('x86')
 163       _vulkan_drivers = 'amd,intel'
 164     else
 165       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 166     endif
 167   else
 168     # No vulkan driver supports windows or macOS currently
 169     _vulkan_drivers = ''
 170   endif
 171 endif
 172 if _vulkan_drivers != ''
 173   _split = _vulkan_drivers.split(',')
 174   with_intel_vk = _split.contains('intel')
 175   with_amd_vk = _split.contains('amd')
 176   with_any_vk = with_amd_vk or with_intel_vk
 177 endif
 178
 179 if with_dri_swrast and with_gallium_softpipe
 180   error('Only one swrast provider can be built')
 181 endif
 182 if with_gallium_imx and not with_gallium_etnaviv
 183   error('IMX driver requires etnaviv driver')
 184 endif
 185
 186 dep_libdrm_intel = []
 187 if with_dri_i915
 188   dep_libdrm_intel = dependency('libdrm_intel', version : '>= 2.4.75')
 189 endif
 190
 191 # TODO: other OSes
 192 with_dri_platform = 'drm'
 193
 194 with_platform_android = false
 195 with_platform_wayland = false
 196 with_platform_x11 = false
 197 with_platform_drm = false
 198 with_platform_surfaceless = false
 199 egl_native_platform = ''
 200 _platforms = get_option('platforms')
 201 if _platforms == 'auto'
 202   if ['linux'].contains(host_machine.system())
 203     _platforms = 'x11,wayland,drm,surfaceless'
 204   else
 205     error('Unknown OS, no platforms enabled. Patches gladly accepted to fix this.')
 206   endif
 207 endif
 208 if _platforms != ''
 209   _split = _platforms.split(',')
 210   with_platform_android = _split.contains('android')
 211   with_platform_x11 = _split.contains('x11')
 212   with_platform_wayland = _split.contains('wayland')
 213   with_platform_drm = _split.contains('drm')
 214   with_platform_surfaceless = _split.contains('surfaceless')
 215   egl_native_platform = _split[0]
 216 endif
 217
 218 with_glx = get_option('glx')
 219 if with_glx == 'auto'
 220   if with_dri
 221     with_glx = 'dri'
 222   elif with_gallium
 223     # Even when building just gallium drivers the user probably wants dri
 224     with_glx = 'dri'
 225     with_dri = true
 226   elif with_platform_x11 and with_any_opengl and not with_any_vk
 227     # The automatic behavior should not be to turn on xlib based glx when
 228     # building only vulkan drivers
 229     with_glx = 'xlib'
 230   else
 231     with_glx = 'disabled'
 232   endif
 233 endif
 234
 235 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 236   with_gles1 = false
 237   with_gles2 = false
 238   with_opengl = false
 239   with_any_opengl = false
 240   with_shared_glapi = false
 241 endif
 242
 243 with_gbm = get_option('gbm')
 244 if with_gbm == 'auto' and with_dri  # TODO: or gallium
 245   with_gbm = host_machine.system() == 'linux'
 246 elif with_gbm == 'true'
 247   if not ['linux', 'bsd'].contains(host_machine.system())
 248     error('GBM only supports unix-like platforms')
 249   endif
 250   with_gbm = true
 251 else
 252   with_gbm = false
 253 endif
 254
 255 _egl = get_option('egl')
 256 if _egl == 'auto'
 257   with_egl = with_dri and with_shared_glapi and egl_native_platform != ''
 258 elif _egl == 'true'
 259   if not with_dri
 260     error('EGL requires dri')
 261   elif not with_shared_glapi
 262     error('EGL requires shared-glapi')
 263   elif egl_native_platform == ''
 264     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 265   endif
 266   with_egl = true
 267 else
 268   with_egl = false
 269 endif
 270
 271 # TODO: or virgl
 272 if with_egl and with_gallium_radeonsi and not (with_platform_drm or with_platform_surfaceless)
 273   error('RadeonSI requires drm or surfaceless platform when using EGL')
 274 endif
 275
 276 pre_args += '-DGLX_USE_TLS'
 277 if with_glx != 'disabled'
 278   if not (with_platform_x11 and with_any_opengl)
 279     if with_glx == 'auto'
 280       with_glx = 'disabled'
 281     else
 282       error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 283     endif
 284   elif with_glx == 'gallium-xlib'
 285     if not with_gallium
 286       error('Gallium-xlib based GLX requires at least one gallium driver')
 287     elif not with_gallium_softpipe
 288       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 289     elif with_dri
 290       error('gallium-xlib conflicts with any dri driver')
 291     endif
 292   elif with_glx == 'xlib'
 293     if with_dri
 294       error('xlib conflicts with any dri driver')
 295     endif
 296   elif with_glx == 'dri' and not with_dri
 297     error('dri based GLX requires at least one DRI driver')
 298   endif
 299 endif
 300
 301 with_glvnd = get_option('glvnd')
 302 if with_glvnd
 303   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 304     error('Cannot build glvnd support for GLX that is not DRI based.')
 305   elif with_glx == 'disabled' and not with_egl
 306     error('glvnd requires DRI based GLX and/or EGL')
 307   endif
 308 endif
 309
 310 # TODO: toggle for this
 311 with_glx_direct = true
 312
 313 if with_vulkan_icd_dir == ''
 314   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 315 endif
 316
 317 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 318 with_dri3 = get_option('dri3')
 319 if with_dri3 == 'auto'
 320   if host_machine.system() == 'linux' and with_dri2
 321     with_dri3 = true
 322   else
 323     with_dri3 = false
 324  endif
 325 elif with_dri3 == 'true'
 326   with_dri3 = true
 327 else
 328   with_dri3 = false
 329 endif
 330
 331 if with_any_vk and (with_platform_x11 and not with_dri3)
 332   error('Vulkan drivers require dri3 for X11 support')
 333 endif
 334 if with_dri or with_gallium
 335   if with_glx == 'disabled' and not with_egl
 336     error('building dri or gallium drivers require at least one window system')
 337   endif
 338 endif
 339
 340 with_gallium_xvmc = false
 341 with_gallium_vdpau = false
 342 with_gallium_omx = false  # this is bellagio
 343 with_gallium_va = false
 344 with_gallium_media = false
 345 dep_va = []
 346 _drivers = get_option('gallium-media')
 347 if _drivers != ''
 348   _split = _drivers.split(',')
 349   with_gallium_xvmc = _split.contains('xvmc')
 350   with_gallium_vdpau = _split.contains('vdpau')
 351   with_gallium_omx = _split.contains('omx')
 352   with_gallium_va = _split.contains('va')
 353   with_gallium_media = (with_gallium_xvmc or with_gallium_vdpau or
 354                         with_gallium_omx or with_gallium_va)
 355 endif
 356
 357 gl_pkgconfig_c_flags = []
 358 if with_platform_x11
 359   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 360     pre_args += '-DHAVE_X11_PLATFORM'
 361   endif
 362   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 363     pre_args += '-DUSE_XSHM'
 364   else
 365     pre_args += '-DGLX_INDIRECT_RENDERING'
 366     if with_glx_direct
 367       pre_args += '-DGLX_DIRECT_RENDERING'
 368     endif
 369     if with_dri_platform == 'drm'
 370       pre_args += '-DGLX_USE_DRM'
 371     endif
 372   endif
 373 else
 374   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 375   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 376 endif
 377 if with_platform_drm
 378   if with_egl and not with_gbm
 379     error('EGL drm platform requires gbm')
 380   endif
 381   pre_args += '-DHAVE_DRM_PLATFORM'
 382 endif
 383 if with_platform_surfaceless
 384   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 385 endif
 386 if with_platform_android
 387   dep_android = [
 388     dependency('cutils'),
 389     dependency('hardware'),
 390     dependency('sync'),
 391   ]
 392   pre_args += '-DHAVE_ANDROID_PLATFORM'
 393 endif
 394
 395 prog_python2 = find_program('python2')
 396 has_mako = run_command(prog_python2, '-c', 'import mako')
 397 if has_mako.returncode() != 0
 398   error('Python (2.x) mako module required to build mesa.')
 399 endif
 400
 401 cc = meson.get_compiler('c')
 402 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 403   error('When using GCC, version 4.4.6 or later is required.')
 404 endif
 405
 406 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 407 if get_option('buildtype') == 'debug'
 408   pre_args += '-DDEBUG'
 409 endif
 410
 411 if get_option('shader-cache')
 412   pre_args += '-DENABLE_SHADER_CACHE'
 413 elif with_amd_vk
 414   error('Radv requires shader cache support')
 415 endif
 416
 417 # Check for GCC style builtins
 418 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 419              'ffsll', 'popcount', 'popcountll', 'unreachable']
 420   if cc.has_function(b)
 421     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 422   endif
 423 endforeach
 424
 425 # check for GCC __attribute__
 426 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 427              'warn_unused_result', 'weak',]
 428   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 429                  name : '__attribute__((@0@))'.format(a))
 430     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 431   endif
 432 endforeach
 433 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 434                name : '__attribute__((format(...)))')
 435   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 436 endif
 437 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 438                name : '__attribute__((packed))')
 439   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 440 endif
 441 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 442                name : '__attribute__((returns_nonnull))')
 443   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NONNULL'
 444 endif
 445 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 446                   int foo_hid(void) __attribute__((visibility("hidden")));
 447                   int foo_int(void) __attribute__((visibility("internal")));
 448                   int foo_pro(void) __attribute__((visibility("protected")));''',
 449                name : '__attribute__((visibility(...)))')
 450   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISBILITY'
 451 endif
 452 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 453                name : '__attribute__((alias(...)))')
 454   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 455 endif
 456
 457 # TODO: this is very incomplete
 458 if host_machine.system() == 'linux'
 459   pre_args += '-D_GNU_SOURCE'
 460 endif
 461
 462 # Check for generic C arguments
 463 c_args = []
 464 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 465              '-Werror=missing-prototypes', '-fno-math-errno',
 466              '-fno-trapping-math', '-Qunused-arguments']
 467   if cc.has_argument(a)
 468     c_args += a
 469   endif
 470 endforeach
 471 c_vis_args = []
 472 if cc.has_argument('-fvisibility=hidden')
 473   c_vis_args += '-fvisibility=hidden'
 474 endif
 475
 476 # Check for generic C++ arguments
 477 cpp = meson.get_compiler('cpp')
 478 cpp_args = []
 479 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 480              '-Qunused-arguments', '-Wno-non-virtual-dtor']
 481   if cpp.has_argument(a)
 482     cpp_args += a
 483   endif
 484 endforeach
 485 cpp_vis_args = []
 486 if cpp.has_argument('-fvisibility=hidden')
 487   cpp_vis_args += '-fvisibility=hidden'
 488 endif
 489
 490 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 491 # in parts of the mesa code base that need to compile with old versions of
 492 # MSVC, mainly common code
 493 c_msvc_compat_args = []
 494 cpp_msvc_compat_args = []
 495 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 496   if cc.has_argument(a)
 497     c_msvc_compat_args += a
 498   endif
 499   if cpp.has_argument(a)
 500     cpp_msvc_compat_args += a
 501   endif
 502 endforeach
 503
 504 no_override_init_args = []
 505 foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
 506   if cc.has_argument(a)
 507     no_override_init_args += a
 508   endif
 509 endforeach
 510
 511 if host_machine.cpu_family().startswith('x86')
 512   pre_args += '-DHAVE_SSE41'
 513   with_sse41 = true
 514   sse41_args = ['-msse4.1']
 515
 516   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 517   # that's not guaranteed
 518   if host_machine.cpu_family() == 'x86'
 519     sse41_args += '-mstackrealign'
 520   endif
 521 else
 522   with_sse41 = false
 523   sse41_args = []
 524 endif
 525
 526 # Check for GCC style atomics
 527 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 528                name : 'GCC atomic builtins')
 529   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 530 endif
 531 if not cc.links('''#include <stdint.h>
 532                    uint64_t v;
 533                    int main() {
 534                      return __sync_add_and_fetch(&v, (uint64_t)1);
 535                    }''',
 536                 name : 'GCC 64bit atomics')
 537   pre_args += '-DMISSING_64_BIT_ATOMICS'
 538 endif
 539
 540 # TODO: endian
 541 # TODO: powr8
 542 # TODO: shared/static? Is this even worth doing?
 543
 544 # Building x86 assembly code requires running x86 binaries. It is possible for
 545 # x86_64 OSes to run x86 binaries, so don't disable asm in those cases
 546 # TODO: it should be possible to use an exe_wrapper to run the binary during
 547 # the build.
 548 if meson.is_cross_build()
 549   if not (build_machine.cpu_family() == 'x86_64' and host_machine.cpu_family() == 'x86'
 550           and build_machine.system() == host_machine.system())
 551     message('Cross compiling to x86 from non-x86, disabling asm')
 552     with_asm = false
 553   endif
 554 endif
 555
 556 with_asm_arch = ''
 557 if with_asm
 558   # TODO: SPARC and PPC
 559   if host_machine.cpu_family() == 'x86'
 560     if ['linux', 'bsd'].contains(host_machine.system()) # FIXME: hurd?
 561       with_asm_arch = 'x86'
 562       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 563                    '-DUSE_SSE_ASM']
 564     endif
 565   elif host_machine.cpu_family() == 'x86_64'
 566     if host_machine.system() == 'linux'
 567       with_asm_arch = 'x86_64'
 568       pre_args += ['-DUSE_X86_64_ASM']
 569     endif
 570   elif host_machine.cpu_family() == 'arm'
 571     if host_machine.system() == 'linux'
 572       with_asm_arch = 'arm'
 573       pre_args += ['-DUSE_ARM_ASM']
 574     endif
 575   elif host_machine.cpu_family() == 'aarch64'
 576     if host_machine.system() == 'linux'
 577       with_asm_arch = 'aarch64'
 578       pre_args += ['-DUSE_AARCH64_ASM']
 579     endif
 580   endif
 581 endif
 582
 583 # Check for standard headers and functions
 584 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 585   pre_args += '-DMAJOR_IN_SYSMACROS'
 586 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 587   pre_args += '-DMAJOR_IN_MKDEV'
 588 endif
 589
 590 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h']
 591   if cc.has_header(h)
 592     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 593   endif
 594 endforeach
 595
 596 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get']
 597   if cc.has_function(f)
 598     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 599   endif
 600 endforeach
 601
 602 # strtod locale support
 603 if cc.links('''
 604     #define _GNU_SOURCE
 605     #include <stdlib.h>
 606     #include <locale.h>
 607     #ifdef HAVE_XLOCALE_H
 608     #include <xlocale.h>
 609     #endif
 610     int main() {
 611       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 612       const char *s = "1.0";
 613       char *end;
 614       double d = strtod_l(s, end, loc);
 615       float f = strtod_l(s, end, loc);
 616       freelocale(loc);
 617       return 0;
 618     }''',
 619     extra_args : pre_args,
 620     name : 'strtod has locale support')
 621   pre_args += '-DHAVE_STRTOD_L'
 622 endif
 623
 624 # Check for some linker flags
 625 ld_args_bsymbolic = []
 626 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 627   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 628 endif
 629 ld_args_gc_sections = []
 630 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 631             args : '-Wl,--gc-sections', name : 'gc-sections')
 632   ld_args_gc_sections += '-Wl,--gc-sections'
 633 endif
 634 with_ld_version_script = false
 635 if cc.links('int main() { return 0; }',
 636             args : '-Wl,--version-script=@0@'.format(
 637               join_paths(meson.source_root(), 'build-support/conftest.map')),
 638             name : 'version-script')
 639   with_ld_version_script = true
 640 endif
 641 with_ld_dynamic_list = false
 642 if cc.links('int main() { return 0; }',
 643             args : '-Wl,--dynamic-list=@0@'.format(
 644               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
 645             name : 'dynamic-list')
 646   with_ld_dynamic_list = true
 647 endif
 648
 649 # check for dl support
 650 if cc.has_function('dlopen')
 651   dep_dl = []
 652 else
 653   dep_dl = cc.find_library('dl')
 654 endif
 655 if cc.has_function('dladdr', dependencies : dep_dl)
 656   # This is really only required for megadrivers
 657   pre_args += '-DHAVE_DLADDR'
 658 endif
 659
 660 if cc.has_function('dl_iterate_phdr')
 661   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 662 elif with_intel_vk
 663   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
 664 elif with_dri_i965 and get_option('shader-cache')
 665   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 666 endif
 667
 668 # Determine whether or not the rt library is needed for time functions
 669 if cc.has_function('clock_gettime')
 670   dep_clock = []
 671 else
 672   dep_clock = cc.find_library('rt')
 673 endif
 674
 675 with_gallium_drisw_kms = false
 676 dep_libdrm = dependency('libdrm', version : '>= 2.4.75',
 677                         required : with_dri2 or with_dri3)
 678 if dep_libdrm.found()
 679   pre_args += '-DHAVE_LIBDRM'
 680   if with_dri_platform == 'drm' and with_dri
 681     with_gallium_drisw_kms = true
 682   endif
 683 endif
 684
 685 # TODO: some of these may be conditional
 686 dep_zlib = dependency('zlib', version : '>= 1.2.3')
 687 dep_thread = dependency('threads')
 688 if dep_thread.found() and host_machine.system() != 'windows'
 689   pre_args += '-DHAVE_PTHREAD'
 690 endif
 691 dep_elf = dependency('libelf', required : false)
 692 if not dep_elf.found() and (with_amd_vk or with_gallium_radeonsi) # TODO: clover, r600
 693   dep_elf = cc.find_library('elf')
 694 endif
 695 dep_expat = dependency('expat')
 696 # this only exists on linux so either this is linux and it will be found, or
 697 # its not linux and and wont
 698 dep_m = cc.find_library('m', required : false)
 699
 700 dep_libdrm_amdgpu = []
 701 dep_libdrm_radeon = []
 702 dep_libdrm_nouveau = []
 703 dep_libdrm_etnaviv = []
 704 dep_libdrm_freedreno = []
 705 if with_amd_vk or with_gallium_radeonsi
 706   dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.88')
 707 endif
 708 if with_gallium_radeonsi or with_dri_r100 or with_dri_r200
 709   dep_libdrm_radeon = dependency('libdrm_radeon', version : '>= 2.4.71')
 710 endif
 711 if with_gallium_nouveau or with_dri_nouveau
 712   dep_libdrm_nouveau = dependency('libdrm_nouveau', version : '>= 2.4.66')
 713 endif
 714 if with_gallium_etnaviv
 715   dep_libdrm_etnaviv = dependency('libdrm_etnaviv', version : '>= 2.4.82')
 716 endif
 717 if with_gallium_freedreno
 718   dep_libdrm_freedreno = dependency('libdrm_freedreno', version : '>= 2.4.74')
 719 endif
 720
 721 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
 722 if with_amd_vk
 723   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
 724 endif
 725 dep_llvm = []
 726 if with_llvm
 727   dep_llvm = dependency(
 728     'llvm', version : '>= 3.9.0', required : with_amd_vk, modules : llvm_modules,
 729   )
 730   if dep_llvm.found()
 731     _llvm_version = dep_llvm.version().split('.')
 732     # Development versions of LLVM have an 'svn' suffix, we don't want that for
 733     # our version checks.
 734     _llvm_patch = _llvm_version[2]
 735     if _llvm_patch.endswith('svn')
 736       _llvm_patch = _llvm_patch.split('s')[0]
 737     endif
 738     pre_args += [
 739       '-DHAVE_LLVM=0x0@0@@1@@2@'.format(_llvm_version[0], _llvm_version[1], _llvm_patch),
 740       '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
 741     ]
 742   else
 743     if with_gallium_softpipe
 744       error('Cannot find LLVM to build LLVMPipe. If you wanted softpipe pass -Dllvm=false to meson')
 745     elif with_amd_vk or with_gallium_radeonsi # etc
 746       error('The following drivers requires LLVM: Radv, RadeonSI. One of these is enabled, but LLVM was not found.')
 747     endif
 748   endif
 749 elif with_amd_vk or with_gallium_radeonsi
 750   error('The following drivers requires LLVM: Radv, RadeonSI. One of these is enabled, but LLVM is disabled.')
 751 endif
 752
 753 dep_glvnd = []
 754 if with_glvnd
 755   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
 756   pre_args += '-DUSE_LIBGLVND=1'
 757 endif
 758
 759 if with_valgrind != 'false'
 760   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
 761   if dep_valgrind.found()
 762     pre_args += '-DHAVE_VALGRIND'
 763   endif
 764 else
 765   dep_valgrind = []
 766 endif
 767
 768 # pthread stubs. Lets not and say we didn't
 769
 770 prog_bison = find_program('bison', required : with_any_opengl)
 771 prog_flex = find_program('flex', required : with_any_opengl)
 772
 773 dep_selinux = []
 774 if get_option('selinux')
 775   dep_selinux = dependency('libselinux')
 776   pre_args += '-DMESA_SELINUX'
 777 endif
 778
 779 # TODO: llvm-prefix and llvm-shared-libs
 780
 781 if with_libunwind != 'false'
 782   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
 783   if dep_unwind.found()
 784     pre_args += '-DHAVE_LIBUNWIND'
 785   endif
 786 else
 787   dep_unwind = []
 788 endif
 789
 790 # TODO: gallium-hud
 791
 792 if with_osmesa != 'none'
 793   if with_osmesa == 'classic' and not with_dri_swrast
 794     error('OSMesa classic requires dri (classic) swrast.')
 795   endif
 796   if with_osmesa == 'gallium' and not with_gallium_softpipe
 797     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
 798   endif
 799   osmesa_lib_name = 'OSMesa'
 800   osmesa_bits = get_option('osmesa-bits')
 801   if osmesa_bits != '8'
 802     if with_dri or with_glx != 'disabled'
 803       error('OSMesa bits must be 8 if building glx or dir based drivers')
 804     endif
 805     osmesa_lib_name = osmesa_lib_name + osmesa_bits
 806     pre_args += [
 807       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
 808     ]
 809   endif
 810 endif
 811
 812 # TODO: symbol mangling
 813
 814 if with_platform_wayland
 815   prog_wl_scanner = find_program('wayland-scanner')
 816   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
 817   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
 818   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
 819   wayland_dmabuf_xml = join_paths(
 820     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
 821     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
 822   )
 823   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
 824 else
 825   prog_wl_scanner = []
 826   dep_wl_protocols = []
 827   dep_wayland_client = []
 828   dep_wayland_server = []
 829   wayland_dmabuf_xml = ''
 830 endif
 831
 832 dep_x11 = []
 833 dep_xext = []
 834 dep_xdamage = []
 835 dep_xfixes = []
 836 dep_x11_xcb = []
 837 dep_xcb = []
 838 dep_xcb_glx = []
 839 dep_xcb_dri2 = []
 840 dep_xcb_dri3 = []
 841 dep_dri2proto = []
 842 dep_glproto = []
 843 dep_xxf86vm = []
 844 dep_xcb_dri3 = []
 845 dep_xcb_present = []
 846 dep_xcb_sync = []
 847 dep_xcb_xfixes = []
 848 dep_xshmfence = []
 849 if with_platform_x11
 850   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 851     dep_x11 = dependency('x11')
 852     dep_xext = dependency('xext')
 853     dep_xcb = dependency('xcb')
 854   elif with_glx == 'dri' and with_dri_platform == 'drm'
 855     dep_x11 = dependency('x11')
 856     dep_xext = dependency('xext')
 857     dep_xdamage = dependency('xdamage', version : '>= 1.1')
 858     dep_xfixes = dependency('xfixes')
 859     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
 860     dep_xxf86vm = dependency('xxf86vm', required : false)
 861   endif
 862   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 863     dep_xcb = dependency('xcb')
 864     dep_x11_xcb = dependency('x11-xcb')
 865     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
 866
 867     if with_dri3
 868       pre_args += '-DHAVE_DRI3'
 869       dep_xcb_dri3 = dependency('xcb-dri3')
 870       dep_xcb_present = dependency('xcb-present')
 871       dep_xcb_sync = dependency('xcb-sync')
 872       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
 873     endif
 874   endif
 875   if with_glx == 'dri'
 876     dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
 877     dep_glproto = dependency('glproto', version : '>= 1.4.14')
 878   endif
 879   if with_egl
 880     dep_xcb_xfixes = dependency('xcb-xfixes')
 881   endif
 882 endif
 883
 884 # TODO: nine
 885
 886 # TODO: clover
 887
 888 # TODO: gallium tests
 889
 890 # TODO: various libdirs
 891
 892 # TODO: swr
 893
 894 # TODO: gallium driver dirs
 895
 896 # FIXME: this is a workaround for #2326
 897 prog_touch = find_program('touch')
 898 dummy_cpp = custom_target(
 899   'dummy_cpp',
 900   output : 'dummy.cpp',
 901   command : [prog_touch, '@OUTPUT@'],
 902 )
 903
 904 foreach a : pre_args
 905   add_project_arguments(a, language : ['c', 'cpp'])
 906 endforeach
 907 foreach a : c_args
 908   add_project_arguments(a, language : ['c'])
 909 endforeach
 910 foreach a : cpp_args
 911   add_project_arguments(a, language : ['cpp'])
 912 endforeach
 913
 914 inc_include = include_directories('include')
 915
 916 gl_priv_reqs = [
 917   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
 918   'xcb-glx >= 1.8.1', 'libdrm >= 2.4.75',
 919 ]
 920 if dep_xxf86vm != [] and dep_xxf86vm.found()
 921   gl_priv_reqs += 'xxf86vm'
 922 endif
 923 if with_dri_platform == 'drm'
 924   gl_priv_reqs += 'xcb-dri2 >= 1.8'
 925 endif
 926
 927 gl_priv_libs = []
 928 if dep_thread.found()
 929   gl_priv_libs += ['-lpthread', '-pthread']
 930 endif
 931 if dep_m.found()
 932   gl_priv_libs += '-lm'
 933 endif
 934 if dep_dl != [] and dep_dl.found()
 935   gl_priv_libs += '-ldl'
 936 endif
 937
 938 pkg = import('pkgconfig')
 939
 940 subdir('include')
 941 subdir('bin')
 942 subdir('src')