1 # Copyright © 2017-2018 Intel Corporation
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:
10 # The above copyright notice and this permission notice shall be included in
11 # all copies or substantial portions of the Software.
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
24 version : run_command(
25 [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
28 meson_version : '>= 0.45',
29 default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c99', 'cpp_std=c++11']
32 cc = meson.get_compiler('c')
33 cpp = meson.get_compiler('cpp')
35 null_dep = dependency('', required : false)
37 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
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++.
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"',
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_glx_direct = get_option('glx-direct')
58 with_osmesa = get_option('osmesa')
59 with_swr_arches = get_option('swr-arches')
60 with_tools = get_option('tools')
61 if with_tools.contains('all')
62 with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau', 'xvmc']
65 dri_drivers_path = get_option('dri-drivers-path')
66 if dri_drivers_path == ''
67 dri_drivers_path = join_paths(get_option('libdir'), 'dri')
69 dri_search_path = get_option('dri-search-path')
70 if dri_search_path == ''
71 dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
74 with_gles1 = get_option('gles1')
75 with_gles2 = get_option('gles2')
76 with_opengl = get_option('opengl')
77 with_any_opengl = with_opengl or with_gles1 or with_gles2
78 # Only build shared_glapi if at least one OpenGL API is enabled
79 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
82 # shared-glapi is required if at least two OpenGL APIs are being built
83 if not with_shared_glapi
84 if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
85 or (with_gles2 and with_opengl))
86 error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
90 # We require OpenGL for OpenGL ES
91 if (with_gles1 or with_gles2) and not with_opengl
92 error('building OpenGL ES without OpenGL is not supported.')
95 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
97 _drivers = get_option('dri-drivers')
98 if _drivers.contains('auto')
101 if ['x86', 'x86_64'].contains(host_machine.cpu_family())
102 _drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
103 elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
106 error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
107 host_machine.cpu_family()))
109 elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
110 # only swrast would make sense here, but gallium swrast is a much better default
113 error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
114 host_machine.system()))
118 with_dri_i915 = _drivers.contains('i915')
119 with_dri_i965 = _drivers.contains('i965')
120 with_dri_r100 = _drivers.contains('r100')
121 with_dri_r200 = _drivers.contains('r200')
122 with_dri_nouveau = _drivers.contains('nouveau')
123 with_dri_swrast = _drivers.contains('swrast')
125 with_dri = _drivers.length() != 0 and _drivers != ['']
127 _drivers = get_option('gallium-drivers')
128 if _drivers.contains('auto')
129 if system_has_kms_drm
131 if ['x86', 'x86_64'].contains(host_machine.cpu_family())
133 'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast'
135 elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
137 'pl111', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'imx', 'nouveau',
138 'tegra', 'virgl', 'swrast',
141 error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
142 host_machine.cpu_family()))
144 elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
145 _drivers = ['swrast']
147 error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
148 host_machine.system()))
151 with_gallium_pl111 = _drivers.contains('pl111')
152 with_gallium_radeonsi = _drivers.contains('radeonsi')
153 with_gallium_r300 = _drivers.contains('r300')
154 with_gallium_r600 = _drivers.contains('r600')
155 with_gallium_nouveau = _drivers.contains('nouveau')
156 with_gallium_freedreno = _drivers.contains('freedreno')
157 with_gallium_softpipe = _drivers.contains('swrast')
158 with_gallium_vc4 = _drivers.contains('vc4')
159 with_gallium_v3d = _drivers.contains('v3d')
160 with_gallium_etnaviv = _drivers.contains('etnaviv')
161 with_gallium_imx = _drivers.contains('imx')
162 with_gallium_tegra = _drivers.contains('tegra')
163 with_gallium_i915 = _drivers.contains('i915')
164 with_gallium_svga = _drivers.contains('svga')
165 with_gallium_virgl = _drivers.contains('virgl')
166 with_gallium_swr = _drivers.contains('swr')
168 with_gallium = _drivers.length() != 0 and _drivers != ['']
170 if with_gallium and system_has_kms_drm
171 _glx = get_option('glx')
172 _egl = get_option('egl')
173 if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
178 _vulkan_drivers = get_option('vulkan-drivers')
179 if _vulkan_drivers.contains('auto')
180 if system_has_kms_drm
181 if host_machine.cpu_family().startswith('x86')
182 _vulkan_drivers = ['amd', 'intel']
183 elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
186 error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
187 host_machine.cpu_family()))
189 elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
190 # No vulkan driver supports windows or macOS currently
193 error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
194 host_machine.system()))
198 with_intel_vk = _vulkan_drivers.contains('intel')
199 with_amd_vk = _vulkan_drivers.contains('amd')
200 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
202 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
203 error('Only one swrast provider can be built')
205 if with_dri_i915 and with_gallium_i915
206 error('Only one i915 provider can be built')
208 if with_gallium_imx and not with_gallium_etnaviv
209 error('IMX driver requires etnaviv driver')
211 if with_gallium_pl111 and not with_gallium_vc4
212 error('pl111 driver requires vc4 driver')
214 if with_gallium_tegra and not with_gallium_nouveau
215 error('tegra driver requires nouveau driver')
218 if host_machine.system() == 'darwin'
219 with_dri_platform = 'apple'
220 elif ['windows', 'cygwin'].contains(host_machine.system())
221 with_dri_platform = 'windows'
222 elif system_has_kms_drm
223 with_dri_platform = 'drm'
225 # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
226 # assert here that one of those cases has been met.
227 # FIXME: illumos ends up here as well
228 with_dri_platform = 'none'
231 _platforms = get_option('platforms')
232 if _platforms.contains('auto')
233 if system_has_kms_drm
234 _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
235 elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
236 _platforms = ['x11', 'surfaceless']
237 elif ['haiku'].contains(host_machine.system())
238 _platforms = ['haiku']
240 error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
241 host_machine.system()))
245 with_platform_android = _platforms.contains('android')
246 with_platform_x11 = _platforms.contains('x11')
247 with_platform_wayland = _platforms.contains('wayland')
248 with_platform_drm = _platforms.contains('drm')
249 with_platform_haiku = _platforms.contains('haiku')
250 with_platform_surfaceless = _platforms.contains('surfaceless')
252 with_platforms = false
253 if _platforms.length() != 0 and _platforms != ['']
254 with_platforms = true
255 egl_native_platform = _platforms[0]
258 _xlib_lease = get_option('xlib-lease')
259 if _xlib_lease == 'auto'
260 with_xlib_lease = with_platform_x11 and with_platform_drm
262 with_xlib_lease = _xlib_lease == 'true'
265 with_glx = get_option('glx')
266 if with_glx == 'auto'
269 elif with_platform_haiku
270 with_glx = 'disabled'
272 # Even when building just gallium drivers the user probably wants dri
274 elif with_platform_x11 and with_any_opengl and not with_any_vk
275 # The automatic behavior should not be to turn on xlib based glx when
276 # building only vulkan drivers
279 with_glx = 'disabled'
288 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
292 with_any_opengl = false
293 with_shared_glapi = false
296 _gbm = get_option('gbm')
298 with_gbm = system_has_kms_drm and with_dri
300 with_gbm = _gbm == 'true'
302 if with_gbm and not system_has_kms_drm
303 error('GBM only supports DRM/KMS platforms')
306 _egl = get_option('egl')
309 not ['darwin', 'windows'].contains(host_machine.system()) and
310 with_dri and with_shared_glapi and with_platforms
314 error('EGL requires dri')
315 elif not with_shared_glapi
316 error('EGL requires shared-glapi')
317 elif not with_platforms
318 error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
319 elif not ['disabled', 'dri'].contains(with_glx)
320 error('EGL requires dri, but a GLX is being built without dri')
321 elif ['darwin', 'windows'].contains(host_machine.system())
322 error('EGL is not available on Windows or MacOS')
329 if with_egl and not (with_platform_drm or with_platform_surfaceless)
330 if with_gallium_radeonsi
331 error('RadeonSI requires drm or surfaceless platform when using EGL')
333 if with_gallium_virgl
334 error('Virgl requires drm or surfaceless platform when using EGL')
338 pre_args += '-DGLX_USE_TLS'
339 if with_glx != 'disabled'
340 if not (with_platform_x11 and with_any_opengl)
341 error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
342 elif with_glx == 'gallium-xlib'
344 error('Gallium-xlib based GLX requires at least one gallium driver')
345 elif not with_gallium_softpipe
346 error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
348 error('gallium-xlib conflicts with any dri driver')
350 elif with_glx == 'xlib'
352 error('xlib conflicts with any dri driver')
354 elif with_glx == 'dri'
356 error('dri based GLX requires at least one DRI driver')
357 elif not with_shared_glapi
358 error('dri based GLX requires shared-glapi')
363 with_glvnd = get_option('glvnd')
365 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
366 error('Cannot build glvnd support for GLX that is not DRI based.')
367 elif with_glx == 'disabled' and not with_egl
368 error('glvnd requires DRI based GLX and/or EGL')
372 if with_vulkan_icd_dir == ''
373 with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
376 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
377 _dri3 = get_option('dri3')
379 with_dri3 = system_has_kms_drm and with_dri2
381 with_dri3 = _dri3 == 'true'
384 if with_any_vk and (with_platform_x11 and not with_dri3)
385 error('Vulkan drivers require dri3 for X11 support')
387 if with_dri or with_gallium
388 if with_glx == 'disabled' and not with_egl and not with_platform_haiku
389 error('building dri or gallium drivers require at least one window system')
393 prog_pkgconfig = find_program('pkg-config')
395 _vdpau = get_option('gallium-vdpau')
396 if not system_has_kms_drm
398 error('VDPAU state tracker can only be build on unix-like OSes.')
402 elif not with_platform_x11
404 error('VDPAU state tracker requires X11 support.')
408 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
409 with_gallium_nouveau)
411 error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
417 with_gallium_vdpau = false
419 dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'true')
421 dep_vdpau = declare_dependency(
422 compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
424 with_gallium_vdpau = true
428 if with_gallium_vdpau
429 pre_args += '-DHAVE_ST_VDPAU'
431 vdpau_drivers_path = get_option('vdpau-libs-path')
432 if vdpau_drivers_path == ''
433 vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
436 _xvmc = get_option('gallium-xvmc')
437 if not system_has_kms_drm
439 error('XVMC state tracker can only be build on unix-like OSes.')
443 elif not with_platform_x11
445 error('XVMC state tracker requires X11 support.')
449 elif not (with_gallium_r600 or with_gallium_nouveau)
451 error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
457 with_gallium_xvmc = false
459 dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'true')
460 with_gallium_xvmc = dep_xvmc.found()
463 xvmc_drivers_path = get_option('xvmc-libs-path')
464 if xvmc_drivers_path == ''
465 xvmc_drivers_path = get_option('libdir')
468 _omx = get_option('gallium-omx')
469 if not system_has_kms_drm
470 if ['auto', 'disabled'].contains(_omx)
473 error('OMX state tracker can only be built on unix-like OSes.')
475 elif not (with_platform_x11 or with_platform_drm)
476 if ['auto', 'disabled'].contains(_omx)
479 error('OMX state tracker requires X11 or drm platform support.')
481 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
482 if ['auto', 'disabled'].contains(_omx)
485 error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
488 with_gallium_omx = _omx
491 if ['auto', 'bellagio'].contains(_omx)
492 dep_omx = dependency(
493 'libomxil-bellagio', required : _omx == 'bellagio'
496 with_gallium_omx = 'bellagio'
499 if ['auto', 'tizonia'].contains(_omx)
500 if with_dri and with_egl
501 dep_omx = dependency(
502 'libtizonia', version : '>= 0.10.0',
503 required : _omx == 'tizonia',
506 dependency('libtizplatform', required : _omx == 'tizonia'),
507 dependency('tizilheaders', required : _omx == 'tizonia'),
509 if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
510 with_gallium_omx = 'tizonia'
512 elif _omx == 'tizonia'
513 error('OMX-Tizonia state tracker requires dri and egl')
517 with_gallium_omx = 'disabled'
519 with_gallium_omx = _omx
523 '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
524 '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
528 omx_drivers_path = get_option('omx-libs-path')
530 if with_gallium_omx != 'disabled'
531 # Figure out where to put the omx driver.
532 # FIXME: this could all be vastly simplified by adding a 'defined_variable'
533 # argument to meson's get_pkgconfig_variable method.
534 if omx_drivers_path == ''
535 _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
536 _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
537 if _omx_libdir == get_option('libdir')
538 omx_drivers_path = _omx_drivers_dir
541 # This will fail on windows. Does OMX run on windows?
542 _omx_libdir = _omx_libdir.split('/')
543 _omx_drivers_dir = _omx_drivers_dir.split('/')
544 foreach o : _omx_drivers_dir
545 if not _omx_libdir.contains(o)
549 omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
554 _va = get_option('gallium-va')
555 if not system_has_kms_drm
557 error('VA state tracker can only be built on unix-like OSes.')
561 elif not (with_platform_x11 or with_platform_drm)
563 error('VA state tracker requires X11 or drm or wayland platform support.')
567 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
569 error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
574 with_gallium_va = false
577 dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'true')
579 dep_va_headers = declare_dependency(
580 compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
582 with_gallium_va = true
586 va_drivers_path = get_option('va-libs-path')
587 if va_drivers_path == ''
588 va_drivers_path = join_paths(get_option('libdir'), 'dri')
591 _xa = get_option('gallium-xa')
592 if not system_has_kms_drm
594 error('XA state tracker can only be built on unix-like OSes.')
598 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
599 or with_gallium_svga)
601 error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
606 with_gallium_xa = _xa != 'false'
608 d3d_drivers_path = get_option('d3d-drivers-path')
609 if d3d_drivers_path == ''
610 d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
613 with_gallium_st_nine = get_option('gallium-nine')
614 if with_gallium_st_nine
615 if not with_gallium_softpipe
616 error('The nine state tracker requires gallium softpipe/llvmpipe.')
617 elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
618 or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
619 error('The nine state tracker requires at least on non-swrast gallium driver.')
622 error('Using nine with wine requires dri3')
626 if get_option('power8') != 'false'
627 # on old versions of meson the cpu family would return as ppc64le on little
628 # endian power8, this was changed in 0.48 such that the family would always
629 # be ppc64 regardless of endianness, and the the machine.endian() value
630 # should be checked. Since we support versions < 0.48 we need to use
632 if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
633 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
634 error('Altivec is not supported with gcc version < 4.8.')
639 vector unsigned char r;
640 vector unsigned int v = vec_splat_u32 (1);
641 r = __builtin_vec_vgbbd ((vector unsigned char) v);
644 args : '-mpower8-vector',
645 name : 'POWER8 intrinsics')
646 pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
647 elif get_option('power8') == 'true'
648 error('POWER8 intrinsic support required but not found.')
653 _opencl = get_option('gallium-opencl')
654 if _opencl != 'disabled'
656 error('OpenCL Clover implementation requires at least one gallium driver.')
659 dep_clc = dependency('libclc')
660 with_gallium_opencl = true
661 with_opencl_icd = _opencl == 'icd'
664 with_gallium_opencl = false
665 with_gallium_icd = false
668 gl_pkgconfig_c_flags = []
670 if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
671 pre_args += '-DHAVE_X11_PLATFORM'
673 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
674 pre_args += '-DUSE_XSHM'
676 pre_args += '-DGLX_INDIRECT_RENDERING'
678 pre_args += '-DGLX_DIRECT_RENDERING'
680 if with_dri_platform == 'drm'
681 pre_args += '-DGLX_USE_DRM'
682 elif with_dri_platform == 'apple'
683 pre_args += '-DGLX_USE_APPLEGL'
684 elif with_dri_platform == 'windows'
685 pre_args += '-DGLX_USE_WINDOWSGL'
689 pre_args += '-DMESA_EGL_NO_X11_HEADERS'
690 gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
693 if with_egl and not with_gbm
694 error('EGL drm platform requires gbm')
696 pre_args += '-DHAVE_DRM_PLATFORM'
698 if with_platform_surfaceless
699 pre_args += '-DHAVE_SURFACELESS_PLATFORM'
701 if with_platform_android
703 dependency('cutils'),
704 dependency('hardware'),
707 pre_args += '-DHAVE_ANDROID_PLATFORM'
709 if with_platform_haiku
710 pre_args += '-DHAVE_HAIKU_PLATFORM'
713 prog_python = import('python3').find_python()
714 has_mako = run_command(
717 from distutils.version import StrictVersion
719 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
721 if has_mako.returncode() != 0
722 error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
725 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
726 error('When using GCC, version 4.4.6 or later is required.')
729 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
730 if get_option('buildtype') == 'debug'
731 pre_args += '-DDEBUG'
734 if get_option('shader-cache')
735 pre_args += '-DENABLE_SHADER_CACHE'
737 error('Radv requires shader cache support')
740 # Check for GCC style builtins
741 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
742 'ffsll', 'popcount', 'popcountll', 'unreachable']
743 if cc.has_function(b)
744 pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
748 # check for GCC __attribute__
749 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
750 'warn_unused_result', 'weak',]
751 if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
752 name : '__attribute__((@0@))'.format(a))
753 pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
756 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
757 name : '__attribute__((format(...)))')
758 pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
760 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
761 name : '__attribute__((packed))')
762 pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
764 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
765 name : '__attribute__((returns_nonnull))')
766 pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
768 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
769 int foo_hid(void) __attribute__((visibility("hidden")));
770 int foo_int(void) __attribute__((visibility("internal")));
771 int foo_pro(void) __attribute__((visibility("protected")));''',
772 name : '__attribute__((visibility(...)))')
773 pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
775 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
776 name : '__attribute__((alias(...)))')
777 pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
779 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
780 name : '__attribute__((__noreturn__))')
781 pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
784 # TODO: this is very incomplete
785 if ['linux', 'cygwin', 'gnu'].contains(host_machine.system())
786 pre_args += '-D_GNU_SOURCE'
789 # Check for generic C arguments
791 foreach a : ['-Werror=implicit-function-declaration',
792 '-Werror=missing-prototypes', '-Werror=return-type',
794 '-fno-trapping-math', '-Qunused-arguments']
795 if cc.has_argument(a)
800 foreach a : ['missing-field-initializers', 'format-truncation']
801 if cc.has_argument('-W' + a)
802 c_args += '-Wno-' + a
807 if cc.has_argument('-fvisibility=hidden')
808 c_vis_args += '-fvisibility=hidden'
811 # Check for generic C++ arguments
813 foreach a : ['-Werror=return-type',
814 '-fno-math-errno', '-fno-trapping-math',
815 '-Qunused-arguments']
816 if cpp.has_argument(a)
821 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
822 # option is not supported. Hence, check for -Wfoo instead.
824 foreach a : ['non-virtual-dtor', 'missing-field-initializers', 'format-truncation']
825 if cpp.has_argument('-W' + a)
826 cpp_args += '-Wno-' + a
830 no_override_init_args = []
831 foreach a : ['override-init', 'initializer-overrides']
832 if cc.has_argument('-W' + a)
833 no_override_init_args += '-Wno-' + a
838 if cpp.has_argument('-fvisibility=hidden')
839 cpp_vis_args += '-fvisibility=hidden'
842 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
843 # in parts of the mesa code base that need to compile with old versions of
844 # MSVC, mainly common code
845 c_msvc_compat_args = []
846 cpp_msvc_compat_args = []
847 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
848 if cc.has_argument(a)
849 c_msvc_compat_args += a
851 if cpp.has_argument(a)
852 cpp_msvc_compat_args += a
856 if host_machine.cpu_family().startswith('x86')
857 pre_args += '-DUSE_SSE41'
859 sse41_args = ['-msse4.1']
861 # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
862 # that's not guaranteed
863 if host_machine.cpu_family() == 'x86'
864 sse41_args += '-mstackrealign'
871 # Check for GCC style atomics
872 dep_atomic = null_dep
874 if cc.compiles('''#include <stdint.h>
879 return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
880 (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
883 name : 'GCC atomic builtins')
884 pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
886 # Not all atomic calls can be turned into lock-free instructions, in which
887 # GCC will make calls into the libatomic library. Check whether we need to
888 # link with -latomic.
890 # This can happen for 64-bit atomic operations on 32-bit architectures such
892 if not cc.links('''#include <stdint.h>
897 return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
898 (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
900 name : 'GCC atomic builtins required -latomic')
901 dep_atomic = cc.find_library('atomic')
904 if not cc.links('''#include <stdint.h>
907 return __sync_add_and_fetch(&v, (uint64_t)1);
909 dependencies : dep_atomic,
910 name : 'GCC 64bit atomics')
911 pre_args += '-DMISSING_64BIT_ATOMICS'
914 # TODO: shared/static? Is this even worth doing?
916 # When cross compiling we generally need to turn off the use of assembly,
917 # because mesa's assembly relies on building an executable for the host system,
918 # and running it to get information about struct sizes. There is at least one
919 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
920 # host OS == build OS, since in that case the build machine can run the host's
922 if meson.is_cross_build()
923 if build_machine.system() != host_machine.system()
924 # TODO: It may be possible to do this with an exe_wrapper (like wine).
925 message('Cross compiling from one OS to another, disabling assembly.')
927 elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
928 # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
929 # x86 -> x86 cross compile. We use startswith rather than == to handle this
931 # TODO: There may be other cases where the 64 bit version of the
932 # architecture can run 32 bit binaries (aarch64 and armv7 for example)
934 Cross compiling to different architectures, and the host cannot run
935 the build machine's binaries. Disabling assembly.
943 if host_machine.cpu_family() == 'x86'
944 if system_has_kms_drm or host_machine.system() == 'gnu'
945 with_asm_arch = 'x86'
946 pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
949 if with_glx_read_only_text
950 pre_args += ['-DGLX_X86_READONLY_TEXT']
953 elif host_machine.cpu_family() == 'x86_64'
954 if system_has_kms_drm
955 with_asm_arch = 'x86_64'
956 pre_args += ['-DUSE_X86_64_ASM']
958 elif host_machine.cpu_family() == 'arm'
959 if system_has_kms_drm
960 with_asm_arch = 'arm'
961 pre_args += ['-DUSE_ARM_ASM']
963 elif host_machine.cpu_family() == 'aarch64'
964 if system_has_kms_drm
965 with_asm_arch = 'aarch64'
966 pre_args += ['-DUSE_AARCH64_ASM']
968 elif host_machine.cpu_family() == 'sparc64'
969 if system_has_kms_drm
970 with_asm_arch = 'sparc'
971 pre_args += ['-DUSE_SPARC_ASM']
973 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
974 if system_has_kms_drm
975 with_asm_arch = 'ppc64le'
976 pre_args += ['-DUSE_PPC64LE_ASM']
981 # Check for standard headers and functions
982 if cc.has_header_symbol('sys/sysmacros.h', 'major')
983 pre_args += '-DMAJOR_IN_SYSMACROS'
984 elif cc.has_header_symbol('sys/mkdev.h', 'major')
985 pre_args += '-DMAJOR_IN_MKDEV'
988 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h', 'dlfcn.h']
989 if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
990 pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
994 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
995 if cc.has_function(f)
996 pre_args += '-DHAVE_@0@'.format(f.to_upper())
1000 # strtod locale support
1005 #ifdef HAVE_XLOCALE_H
1006 #include <xlocale.h>
1009 locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1010 const char *s = "1.0";
1012 double d = strtod_l(s, end, loc);
1013 float f = strtof_l(s, end, loc);
1018 name : 'strtod has locale support')
1019 pre_args += '-DHAVE_STRTOD_L'
1022 # Check for some linker flags
1023 ld_args_bsymbolic = []
1024 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1025 ld_args_bsymbolic += '-Wl,-Bsymbolic'
1027 ld_args_gc_sections = []
1028 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1029 args : '-Wl,--gc-sections', name : 'gc-sections')
1030 ld_args_gc_sections += '-Wl,--gc-sections'
1032 with_ld_version_script = false
1033 if cc.links('int main() { return 0; }',
1034 args : '-Wl,--version-script=@0@'.format(
1035 join_paths(meson.source_root(), 'build-support/conftest.map')),
1036 name : 'version-script')
1037 with_ld_version_script = true
1039 with_ld_dynamic_list = false
1040 if cc.links('int main() { return 0; }',
1041 args : '-Wl,--dynamic-list=@0@'.format(
1042 join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1043 name : 'dynamic-list')
1044 with_ld_dynamic_list = true
1046 ld_args_build_id = []
1047 if build_machine.system() != 'darwin'
1048 ld_args_build_id += '-Wl,--build-id=sha1'
1051 # check for dl support
1052 if cc.has_function('dlopen')
1055 dep_dl = cc.find_library('dl')
1057 if cc.has_function('dladdr', dependencies : dep_dl)
1058 # This is really only required for megadrivers
1059 pre_args += '-DHAVE_DLADDR'
1062 if cc.has_function('dl_iterate_phdr')
1063 pre_args += '-DHAVE_DL_ITERATE_PHDR'
1065 error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1066 elif with_dri_i965 and get_option('shader-cache')
1067 error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1070 # Determine whether or not the rt library is needed for time functions
1071 if cc.has_function('clock_gettime')
1072 dep_clock = null_dep
1074 dep_clock = cc.find_library('rt')
1077 # TODO: some of these may be conditional
1078 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1079 pre_args += '-DHAVE_ZLIB'
1080 dep_thread = dependency('threads')
1081 if dep_thread.found() and host_machine.system() != 'windows'
1082 pre_args += '-DHAVE_PTHREAD'
1084 'pthread_setaffinity_np',
1085 dependencies : dep_thread,
1086 prefix : '#include <pthread.h>',
1087 args : '-D_GNU_SOURCE')
1088 pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1091 dep_expat = dependency('expat')
1092 # this only exists on linux so either this is linux and it will be found, or
1093 # its not linux and and wont
1094 dep_m = cc.find_library('m', required : false)
1096 # Check for libdrm. various drivers have different libdrm version requirements,
1097 # but we always want to use the same version for all libdrm modules. That means
1098 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1099 # bar are both on use 2.4.3 for both of them
1100 dep_libdrm_amdgpu = null_dep
1101 dep_libdrm_radeon = null_dep
1102 dep_libdrm_nouveau = null_dep
1103 dep_libdrm_etnaviv = null_dep
1104 dep_libdrm_intel = null_dep
1106 _drm_amdgpu_ver = '2.4.95'
1107 _drm_radeon_ver = '2.4.71'
1108 _drm_nouveau_ver = '2.4.66'
1109 _drm_etnaviv_ver = '2.4.89'
1110 _drm_intel_ver = '2.4.75'
1114 ['intel', with_dri_i915 or with_gallium_i915],
1115 ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1116 ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1117 with_gallium_r300 or with_gallium_r600)],
1118 ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1119 ['etnaviv', with_gallium_etnaviv],
1122 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1128 # Loop over the enables versions and get the highest libdrm requirement for all
1131 foreach d : _libdrm_checks
1132 ver = get_variable('_drm_@0@_ver'.format(d[0]))
1133 if d[1] and ver.version_compare('>' + _drm_ver)
1139 message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1142 # Then get each libdrm module
1143 foreach d : _libdrm_checks
1146 'dep_libdrm_' + d[0],
1147 dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1152 with_gallium_drisw_kms = false
1153 dep_libdrm = dependency(
1154 'libdrm', version : '>=' + _drm_ver,
1155 required : with_dri2 or with_dri3
1157 if dep_libdrm.found()
1158 pre_args += '-DHAVE_LIBDRM'
1159 if with_dri_platform == 'drm' and with_dri
1160 with_gallium_drisw_kms = true
1164 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1165 llvm_optional_modules = []
1166 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1167 llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1168 if with_gallium_r600
1169 llvm_modules += 'asmparser'
1172 if with_gallium_opencl
1174 'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1175 'lto', 'option', 'objcarcopts', 'profiledata',
1177 llvm_optional_modules += ['coroutines']
1180 if with_amd_vk or with_gallium_radeonsi
1181 _llvm_version = '>= 6.0.0'
1182 elif with_gallium_swr
1183 _llvm_version = '>= 6.0.0'
1184 elif with_gallium_opencl or with_gallium_r600
1185 _llvm_version = '>= 3.9.0'
1187 _llvm_version = '>= 3.3.0'
1190 _shared_llvm = get_option('shared-llvm')
1192 _llvm = get_option('llvm')
1196 dep_llvm = dependency(
1198 version : _llvm_version,
1199 modules : llvm_modules,
1200 optional_modules : llvm_optional_modules,
1202 with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1203 with_gallium_opencl or _llvm == 'true'
1205 static : not _shared_llvm,
1207 with_llvm = dep_llvm.found()
1210 _llvm_version = dep_llvm.version().split('.')
1212 # 3 digits versions in LLVM only started from 3.4.1 on
1213 if dep_llvm.version().version_compare('>= 3.4.1')
1214 _llvm_patch = _llvm_version[2]
1220 '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1221 '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1224 # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1225 # programs, so we need to build all C++ code in mesa without rtti as well to
1226 # ensure that linking works.
1227 if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1228 cpp_args += '-fno-rtti'
1230 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1231 error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1234 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1235 (with_gallium_r600 and with_llvm))
1236 dep_elf = dependency('libelf', required : false)
1237 if not dep_elf.found()
1238 dep_elf = cc.find_library('elf')
1244 dep_glvnd = null_dep
1246 dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1247 pre_args += '-DUSE_LIBGLVND=1'
1250 if with_valgrind != 'false'
1251 dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1252 if dep_valgrind.found()
1253 pre_args += '-DHAVE_VALGRIND'
1256 dep_valgrind = null_dep
1259 # pthread stubs. Lets not and say we didn't
1261 prog_bison = find_program('bison', required : with_any_opengl)
1262 prog_flex = find_program('flex', required : with_any_opengl)
1264 dep_selinux = null_dep
1265 if get_option('selinux')
1266 dep_selinux = dependency('libselinux')
1267 pre_args += '-DMESA_SELINUX'
1270 if with_libunwind != 'false'
1271 dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1272 if dep_unwind.found()
1273 pre_args += '-DHAVE_LIBUNWIND'
1276 dep_unwind = null_dep
1279 if with_osmesa != 'none'
1280 if with_osmesa == 'classic' and not with_dri_swrast
1281 error('OSMesa classic requires dri (classic) swrast.')
1283 if with_osmesa == 'gallium' and not with_gallium_softpipe
1284 error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1286 osmesa_lib_name = 'OSMesa'
1287 osmesa_bits = get_option('osmesa-bits')
1288 if osmesa_bits != '8'
1289 if with_dri or with_glx != 'disabled'
1290 error('OSMesa bits must be 8 if building glx or dir based drivers')
1292 osmesa_lib_name = osmesa_lib_name + osmesa_bits
1294 '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1299 # TODO: symbol mangling
1301 if with_platform_wayland
1302 dep_wl_scanner = dependency('wayland-scanner', native: true)
1303 prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1304 if dep_wl_scanner.version().version_compare('>= 1.15')
1305 wl_scanner_arg = 'private-code'
1307 wl_scanner_arg = 'code'
1309 dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1310 dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1311 dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1313 dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1314 dep_wayland_egl_headers = declare_dependency(
1315 compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1317 wayland_dmabuf_xml = join_paths(
1318 dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1319 'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1321 pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1326 dep_xdamage = null_dep
1327 dep_xfixes = null_dep
1328 dep_x11_xcb = null_dep
1330 dep_xcb_glx = null_dep
1331 dep_xcb_dri2 = null_dep
1332 dep_xcb_dri3 = null_dep
1333 dep_dri2proto = null_dep
1334 dep_glproto = null_dep
1335 dep_xxf86vm = null_dep
1336 dep_xcb_dri3 = null_dep
1337 dep_xcb_present = null_dep
1338 dep_xcb_sync = null_dep
1339 dep_xcb_xfixes = null_dep
1340 dep_xshmfence = null_dep
1341 dep_xcb_xrandr = null_dep
1342 dep_xlib_xrandr = null_dep
1343 if with_platform_x11
1344 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1345 dep_x11 = dependency('x11')
1346 dep_xext = dependency('xext')
1347 dep_xcb = dependency('xcb')
1348 elif with_glx == 'dri'
1349 dep_x11 = dependency('x11')
1350 dep_xext = dependency('xext')
1351 dep_xdamage = dependency('xdamage', version : '>= 1.1')
1352 dep_xfixes = dependency('xfixes')
1353 dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1355 if (with_any_vk or with_glx == 'dri' or
1356 (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1357 with_gallium_omx != 'disabled'))
1358 dep_xcb = dependency('xcb')
1359 dep_x11_xcb = dependency('x11-xcb')
1361 if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1362 dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1365 pre_args += '-DHAVE_DRI3'
1366 dep_xcb_dri3 = dependency('xcb-dri3')
1367 dep_xcb_present = dependency('xcb-present')
1368 # until xcb-dri3 has been around long enough to make a hard-dependency:
1369 if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1370 dep_xcb_present.version().version_compare('>= 1.13'))
1371 pre_args += '-DHAVE_DRI3_MODIFIERS'
1373 dep_xcb_sync = dependency('xcb-sync')
1374 dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1377 if with_glx == 'dri'
1378 if with_dri_platform == 'drm'
1379 dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1380 dep_xxf86vm = dependency('xxf86vm')
1382 dep_glproto = dependency('glproto', version : '>= 1.4.14')
1385 with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1386 with_gallium_omx != 'disabled'))
1387 dep_xcb_xfixes = dependency('xcb-xfixes')
1390 dep_xcb_xrandr = dependency('xcb-randr', version : '>= 1.12')
1391 dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1395 if get_option('gallium-extra-hud')
1396 pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1399 _sensors = get_option('lmsensors')
1400 if _sensors != 'false'
1401 dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1402 if dep_lmsensors.found()
1403 pre_args += '-DHAVE_LIBSENSORS=1'
1406 dep_lmsensors = null_dep
1409 foreach a : pre_args
1410 add_project_arguments(a, language : ['c', 'cpp'])
1413 add_project_arguments(a, language : ['c'])
1415 foreach a : cpp_args
1416 add_project_arguments(a, language : ['cpp'])
1419 inc_include = include_directories('include')
1423 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1424 gl_priv_reqs += ['x11', 'xext', 'xcb']
1425 elif with_glx == 'dri'
1427 'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1429 if with_dri_platform == 'drm'
1430 gl_priv_reqs += 'xcb-dri2 >= 1.8'
1431 gl_priv_reqs += 'xxf86vm'
1434 if dep_libdrm.found()
1435 gl_priv_reqs += 'libdrm >= 2.4.75'
1439 if dep_thread.found()
1440 gl_priv_libs += ['-lpthread', '-pthread']
1443 gl_priv_libs += '-lm'
1446 gl_priv_libs += '-ldl'
1449 pkg = import('pkgconfig')
1451 env_test = environment()
1452 env_test.set('NM', find_program('nm').path())