602 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			602 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
| {
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|   lib,
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|   OpenGL,
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|   Xplugin,
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|   bison,
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|   buildPackages,
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|   directx-headers,
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|   elfutils,
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|   expat,
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|   fetchCrate,
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|   fetchurl,
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|   file,
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|   flex,
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|   glslang,
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|   intltool,
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|   jdupes,
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|   libdrm,
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|   libffi,
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|   libglvnd,
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|   libomxil-bellagio,
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|   libunwind,
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|   libva-minimal,
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|   libvdpau,
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|   llvmPackages,
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|   lm_sensors,
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|   meson,
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|   ninja,
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|   openssl,
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|   pkg-config,
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|   python3Packages,
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|   rust-bindgen,
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|   rust-cbindgen,
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|   rustPlatform,
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|   rustc,
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|   spirv-llvm-translator,
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|   stdenv,
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|   udev,
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|   valgrind-light,
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|   vulkan-loader,
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|   wayland,
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|   wayland-protocols,
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|   wayland-scanner,
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|   xcbutilkeysyms,
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|   xorg,
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|   zstd,
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|   withValgrind ?
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|     lib.meta.availableOn stdenv.hostPlatform valgrind-light
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|     && !valgrind-light.meta.broken,
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|   withLibunwind ? lib.meta.availableOn stdenv.hostPlatform libunwind,
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|   enableGalliumNine ? stdenv.isLinux,
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|   enableOSMesa ? stdenv.isLinux,
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|   enableOpenCL ? stdenv.isLinux && stdenv.isx86_64,
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|   enableTeflon ? stdenv.isLinux && stdenv.isAarch64, # currently only supports aarch64 SoCs, may change in the future
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|   enablePatentEncumberedCodecs ? true,
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|   galliumDrivers ?
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|     if stdenv.isLinux
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|     then
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|       [
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|         "d3d12" # WSL emulated GPU (aka Dozen)
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|         "iris" # new Intel (Broadwell+)
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|         "kmsro" # special "render only" driver for GPUs without a display controller
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|         "nouveau" # Nvidia
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|         "radeonsi" # new AMD (GCN+)
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|         "r300" # very old AMD
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|         "r600" # less old AMD
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|         "swrast" # software renderer (aka LLVMPipe)
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|         "svga" # VMWare virtualized GPU
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|         "virgl" # QEMU virtualized GPU (aka VirGL)
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|         "zink" # generic OpenGL over Vulkan, experimental
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|       ]
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|       ++ lib.optionals (stdenv.isAarch64 || stdenv.isAarch32) [
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|         "etnaviv" # Vivante GPU designs (mostly NXP/Marvell SoCs)
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|         "freedreno" # Qualcomm Adreno (all Qualcomm SoCs)
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|         "lima" # ARM Mali 4xx
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|         "panfrost" # ARM Mali Midgard and up (T/G series)
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|         "vc4" # Broadcom VC4 (Raspberry Pi 0-3)
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|       ]
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|       ++ lib.optionals stdenv.isAarch64 [
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|         "tegra" # Nvidia Tegra SoCs
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|         "v3d" # Broadcom VC5 (Raspberry Pi 4)
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|       ]
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|       ++ lib.optionals stdenv.hostPlatform.isx86 [
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|         "crocus" # Intel legacy, x86 only
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|         "i915" # Intel extra legacy, x86 only
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|       ]
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|     else ["auto"],
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|   vulkanDrivers ?
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|     if stdenv.isLinux
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|     then
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|       [
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|         "amd" # AMD (aka RADV)
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|         "intel" # new Intel (aka ANV)
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|         "microsoft-experimental" # WSL virtualized GPU (aka DZN/Dozen)
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|         "nouveau" # Nouveau (aka NVK)
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|         "swrast" # software renderer (aka Lavapipe)
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|       ]
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|       ++ lib.optionals (stdenv.hostPlatform.isAarch -> lib.versionAtLeast stdenv.hostPlatform.parsed.cpu.version "6") [
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|         # QEMU virtualized GPU (aka VirGL)
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|         # Requires ATOMIC_INT_LOCK_FREE == 2.
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|         "virtio"
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|       ]
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|       ++ lib.optionals stdenv.isAarch64 [
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|         "broadcom" # Broadcom VC5 (Raspberry Pi 4, aka V3D)
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|         "freedreno" # Qualcomm Adreno (all Qualcomm SoCs)
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|         "imagination-experimental" # PowerVR Rogue (currently N/A)
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|         "panfrost" # ARM Mali Midgard and up (T/G series)
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|       ]
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|       ++ lib.optionals stdenv.hostPlatform.isx86 [
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|         "intel_hasvk" # Intel Haswell/Broadwell, "legacy" Vulkan driver (https://www.phoronix.com/news/Intel-HasVK-Drop-Dead-Code)
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|       ]
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|     else ["auto"],
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|   eglPlatforms ? ["x11"] ++ lib.optionals stdenv.isLinux ["wayland"],
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|   vulkanLayers ?
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|     lib.optionals (!stdenv.isDarwin) [
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|       # No Vulkan support on Darwin
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|       "device-select"
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|       "overlay"
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|       "intel-nullhw"
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|     ],
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| }:
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| # When updating this package, please verify at least these build (assuming x86_64-linux):
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| # nix build .#mesa .#pkgsi686Linux.mesa .#pkgsCross.aarch64-multiplatform.mesa .#pkgsMusl.mesa
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| let
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|   version = "24.1.1";
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|   hash = "sha256-ADiCbG9+iNkLTOb3GRkvpYyn3t9O3KoRdM972SDvieo=";
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| 
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|   # Release calendar: https://www.mesa3d.org/release-calendar.html
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|   # Release frequency: https://www.mesa3d.org/releasing.html#schedule
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|   branch = lib.versions.major version;
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| 
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|   withLibdrm = lib.meta.availableOn stdenv.hostPlatform libdrm;
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| 
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|   haveWayland = lib.elem "wayland" eglPlatforms;
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|   haveZink = lib.elem "zink" galliumDrivers;
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|   haveDozen = (lib.elem "d3d12" galliumDrivers) || (lib.elem "microsoft-experimental" vulkanDrivers);
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| 
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|   rustDeps = [
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|     {
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|       pname = "paste";
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|       version = "1.0.14";
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|       hash = "sha256-+J1h7New5MEclUBvwDQtTYJCHKKqAEOeQkuKy+g0vEc=";
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|     }
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|     {
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|       pname = "proc-macro2";
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|       version = "1.0.70";
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|       hash = "sha256-e4ZgyZUTu5nAtaH5QVkLelqJQX/XPj/rWkzf/g2c+1g=";
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|     }
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|     {
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|       pname = "quote";
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|       version = "1.0.33";
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|       hash = "sha256-VWRCZJO0/DJbNu0/V9TLaqlwMot65YjInWT9VWg57DY=";
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|     }
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|     {
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|       pname = "syn";
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|       version = "2.0.39";
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|       hash = "sha256-Mjen2L/omhVbhU/+Ao65mogs3BP3fY+Bodab3uU63EI=";
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|     }
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|     {
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|       pname = "unicode-ident";
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|       version = "1.0.12";
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|       hash = "sha256-KX8NqYYw6+rGsoR9mdZx8eT1HIPEUUyxErdk2H/Rlj8=";
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|     }
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|   ];
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| 
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|   copyRustDep = dep: ''
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|     cp -R --no-preserve=mode,ownership ${fetchCrate dep} subprojects/${dep.pname}-${dep.version}
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|     cp -R subprojects/packagefiles/${dep.pname}/* subprojects/${dep.pname}-${dep.version}/
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|   '';
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| 
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|   copyRustDeps = lib.concatStringsSep "\n" (builtins.map copyRustDep rustDeps);
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| 
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|   needNativeCLC = !stdenv.buildPlatform.canExecute stdenv.hostPlatform;
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|   self = stdenv.mkDerivation {
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|     pname = "mesa";
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|     inherit version;
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| 
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|     src = fetchurl {
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|       urls = [
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|         "https://archive.mesa3d.org/mesa-${version}.tar.xz"
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|         "https://mesa.freedesktop.org/archive/mesa-${version}.tar.xz"
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|         "ftp://ftp.freedesktop.org/pub/mesa/mesa-${version}.tar.xz"
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|         "ftp://ftp.freedesktop.org/pub/mesa/${version}/mesa-${version}.tar.xz"
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|         "ftp://ftp.freedesktop.org/pub/mesa/older-versions/${branch}.x/${version}/mesa-${version}.tar.xz"
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|       ];
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|       inherit hash;
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|     };
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| 
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|     patches =
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|       [
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|         ./opencl.patch
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|       ]
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|       ++ lib.optionals stdenv.isDarwin [
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|         # Reorder things to make it build on Darwin again
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|         # Submitted upstream: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29592
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|         # FIXME: remove when merged or otherwise addressed
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|         ./darwin.patch
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|       ];
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| 
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|     postPatch = ''
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|       patchShebangs .
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| 
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|       # The drirc.d directory cannot be installed to $drivers as that would cause a cyclic dependency:
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|       substituteInPlace src/util/xmlconfig.c --replace \
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|         'DATADIR "/drirc.d"' '"${placeholder "out"}/share/drirc.d"'
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|       substituteInPlace src/util/meson.build --replace \
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|         "get_option('datadir')" "'${placeholder "out"}/share'"
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|       substituteInPlace src/amd/vulkan/meson.build --replace \
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|         "get_option('datadir')" "'${placeholder "out"}/share'"
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| 
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|       ${copyRustDeps}
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|     '';
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| 
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|     outputs =
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|       [
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|         "out"
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|         "dev"
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|         "drivers"
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|       ]
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|       ++ lib.optionals enableOSMesa [
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|         "osmesa"
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|       ]
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|       ++ lib.optionals stdenv.isLinux [
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|         "driversdev"
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|       ]
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|       ++ lib.optionals enableTeflon [
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|         "teflon"
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|       ]
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|       ++ lib.optionals enableOpenCL [
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|         "opencl"
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|       ]
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|       ++ lib.optionals haveDozen [
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|         # the Dozen drivers depend on libspirv2dxil, but link it statically, and
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|         # libspirv2dxil itself is pretty chonky, so relocate it to its own output in
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|         # case anything wants to use it at some point
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|         "spirv2dxil"
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|       ];
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| 
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|     # Keep build-ids so drivers can use them for caching, etc.
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|     # Also some drivers segfault without this.
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|     separateDebugInfo = true;
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| 
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|     # Needed to discover llvm-config for cross
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|     preConfigure = ''
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|       PATH=${llvmPackages.libllvm.dev}/bin:$PATH
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|     '';
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| 
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|     mesonFlags =
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|       [
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|         "--sysconfdir=/etc"
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|         "--datadir=${placeholder "drivers"}/share" # Vendor files
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| 
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|         # Don't build in debug mode
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|         # https://gitlab.freedesktop.org/mesa/mesa/blob/master/docs/meson.html#L327
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|         (lib.mesonBool "b_ndebug" true)
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| 
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|         (lib.mesonOption "dri-search-path" "${libglvnd.driverLink}/lib/dri")
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| 
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|         (lib.mesonOption "platforms" (lib.concatStringsSep "," eglPlatforms))
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|         (lib.mesonOption "gallium-drivers" (lib.concatStringsSep "," galliumDrivers))
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|         (lib.mesonOption "vulkan-drivers" (lib.concatStringsSep "," vulkanDrivers))
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| 
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|         (lib.mesonOption "dri-drivers-path" "${placeholder "drivers"}/lib/dri")
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|         (lib.mesonOption "vdpau-libs-path" "${placeholder "drivers"}/lib/vdpau")
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|         (lib.mesonOption "omx-libs-path" "${placeholder "drivers"}/lib/bellagio")
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|         (lib.mesonOption "va-libs-path" "${placeholder "drivers"}/lib/dri")
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|         (lib.mesonOption "d3d-drivers-path" "${placeholder "drivers"}/lib/d3d")
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| 
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|         (lib.mesonBool "gallium-nine" enableGalliumNine) # Direct3D in Wine
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|         (lib.mesonBool "osmesa" enableOSMesa) # used by wine
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|         (lib.mesonBool "teflon" enableTeflon) # TensorFlow frontend
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|         (lib.mesonEnable "microsoft-clc" false) # Only relevant on Windows (OpenCL 1.2 API on top of D3D12)
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| 
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|         # To enable non-mesa gbm backends to be found (e.g. Nvidia)
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|         (lib.mesonOption "gbm-backends-path" "${libglvnd.driverLink}/lib/gbm:${placeholder "out"}/lib/gbm")
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| 
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|         # meson auto_features enables these features, but we do not want them
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|         (lib.mesonEnable "android-libbacktrace" false)
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|       ]
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|       ++ lib.optionals stdenv.isLinux [
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|         (lib.mesonEnable "glvnd" true)
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|         (lib.mesonBool "install-intel-clc" true)
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|         (lib.mesonEnable "intel-rt" stdenv.isx86_64)
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|         (lib.mesonOption "clang-libdir" "${llvmPackages.clang-unwrapped.lib}/lib")
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|       ]
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|       ++ lib.optionals stdenv.isDarwin [
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|         # Disable features that are explicitly unsupported on the platform
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|         (lib.mesonEnable "gbm" false)
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|         (lib.mesonEnable "xlib-lease" false)
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|         (lib.mesonEnable "egl" false)
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|         (lib.mesonEnable "gallium-vdpau" false)
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|         (lib.mesonEnable "gallium-va" false)
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|         (lib.mesonEnable "gallium-xa" false)
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|         (lib.mesonEnable "lmsensors" false)
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|         # Don’t build with glvnd support to make sure Mesa builds libGL on Darwin
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|         (lib.mesonEnable "glvnd" false)
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|         # This gets enabled by mesonAutoFeatures and fails on aarch64-darwin,
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|         # which makes no sense because Darwin has neither Intel nor RT, but OK
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|         (lib.mesonEnable "intel-rt" false)
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|       ]
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|       ++ lib.optionals enableOpenCL [
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|         # Clover, old OpenCL frontend
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|         (lib.mesonOption "gallium-opencl" "icd")
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|         (lib.mesonBool "opencl-spirv" true)
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| 
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|         # Rusticl, new OpenCL frontend
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|         (lib.mesonBool "gallium-rusticl" true)
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|       ]
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|       ++ lib.optionals (!withValgrind) [
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|         (lib.mesonEnable "valgrind" false)
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|       ]
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|       ++ lib.optionals (!withLibunwind) [
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|         (lib.mesonEnable "libunwind" false)
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|       ]
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|       ++ lib.optionals enablePatentEncumberedCodecs [
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|         (lib.mesonOption "video-codecs" "all")
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|       ]
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|       ++ lib.optionals (vulkanLayers != []) [
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|         (lib.mesonOption "vulkan-layers" (builtins.concatStringsSep "," vulkanLayers))
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|       ]
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|       ++ lib.optionals needNativeCLC [
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|         (lib.mesonOption "intel-clc" "system")
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|       ];
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| 
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|     strictDeps = true;
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| 
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|     buildInputs = with xorg;
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|       [
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|         expat
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|         glslang
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|         libffi
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|         libglvnd
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|         libvdpau
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|         llvmPackages.libllvm
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|         openssl
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|         zstd
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|       ]
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|       ++ (with xorg; [
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|         libX11
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|         libXext
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|         libXfixes
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|         libXrandr
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|         libXt
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|         libXvMC
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|         libpthreadstubs
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|         libxcb
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|         libxshmfence
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|         xcbutilkeysyms
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|         xorgproto
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|       ])
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|       ++ lib.optionals withLibunwind [
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|         libunwind
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|       ]
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|       ++ [
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|         python3Packages.python # for shebang
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|       ]
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|       ++ lib.optionals haveWayland [
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|         wayland
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|         wayland-protocols
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|       ]
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|       ++ lib.optionals stdenv.isLinux [
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|         libomxil-bellagio
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|         libva-minimal
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|         llvmPackages.clang-unwrapped
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|         llvmPackages.libclc
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|         lm_sensors
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|         spirv-llvm-translator
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|         udev
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|       ]
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|       ++ lib.optionals (lib.meta.availableOn stdenv.hostPlatform elfutils) [
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|         elfutils
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|       ]
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|       ++ lib.optionals enableOpenCL [
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|         llvmPackages.clang
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|       ]
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|       ++ lib.optionals withValgrind [
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|         valgrind-light
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|       ]
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|       ++ lib.optionals haveZink [
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|         vulkan-loader
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|       ]
 | ||
|       ++ lib.optionals haveDozen [
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|         directx-headers
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|       ];
 | ||
| 
 | ||
|     depsBuildBuild =
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|       [
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|         pkg-config
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|       ]
 | ||
|       ++ lib.optionals (!stdenv.isDarwin) [
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|         # Adding this unconditionally makes x86_64-darwin pick up an older
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|         # toolchain, as we explicitly call Mesa with 11.0 stdenv, but buildPackages
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|         # is still 10.something, and Mesa can't build with that.
 | ||
|         # FIXME: figure this out, or figure out how to get rid of Mesa on Darwin,
 | ||
|         # whichever is easier.
 | ||
|         buildPackages.stdenv.cc
 | ||
|       ];
 | ||
| 
 | ||
|     nativeBuildInputs =
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|       [
 | ||
|         meson
 | ||
|         pkg-config
 | ||
|         ninja
 | ||
|         intltool
 | ||
|         bison
 | ||
|         flex
 | ||
|         file
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|         python3Packages.python
 | ||
|         python3Packages.packaging
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|         python3Packages.pycparser
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|         python3Packages.mako
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|         python3Packages.ply
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|         jdupes
 | ||
|         glslang
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|         rustc
 | ||
|         rust-bindgen
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|         rust-cbindgen
 | ||
|         rustPlatform.bindgenHook
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|       ]
 | ||
|       ++ lib.optionals haveWayland [
 | ||
|         wayland-scanner
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|       ]
 | ||
|       ++ lib.optionals needNativeCLC [
 | ||
|         buildPackages.mesa.driversdev
 | ||
|       ];
 | ||
| 
 | ||
|     disallowedRequisites = lib.optionals needNativeCLC [
 | ||
|       buildPackages.mesa.driversdev
 | ||
|     ];
 | ||
| 
 | ||
|     propagatedBuildInputs =
 | ||
|       (with xorg; [
 | ||
|         libXdamage
 | ||
|         libXxf86vm
 | ||
|       ])
 | ||
|       ++ lib.optionals withLibdrm [
 | ||
|         libdrm
 | ||
|       ]
 | ||
|       ++ lib.optionals stdenv.isDarwin [
 | ||
|         OpenGL
 | ||
|         Xplugin
 | ||
|       ];
 | ||
| 
 | ||
|     doCheck = false;
 | ||
| 
 | ||
|     postInstall =
 | ||
|       ''
 | ||
|         # Some installs don't have any drivers so this directory is never created.
 | ||
|         mkdir -p $drivers $osmesa
 | ||
|       ''
 | ||
|       + lib.optionalString stdenv.isLinux ''
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|         mkdir -p $drivers/lib
 | ||
| 
 | ||
|         if [ -n "$(shopt -s nullglob; echo "$out/lib/libxatracker"*)" -o -n "$(shopt -s nullglob; echo "$out/lib/libvulkan_"*)" ]; then
 | ||
|           # move gallium-related stuff to $drivers, so $out doesn't depend on LLVM
 | ||
|           mv -t $drivers/lib       \
 | ||
|             $out/lib/libpowervr_rogue* \
 | ||
|             $out/lib/libxatracker* \
 | ||
|             $out/lib/libvulkan_*
 | ||
|         fi
 | ||
| 
 | ||
|         if [ -n "$(shopt -s nullglob; echo "$out"/lib/lib*_mesa*)" ]; then
 | ||
|           # Move other drivers to a separate output
 | ||
|           mv -t $drivers/lib $out/lib/lib*_mesa*
 | ||
|         fi
 | ||
| 
 | ||
|         # Update search path used by glvnd
 | ||
|         for js in $drivers/share/glvnd/egl_vendor.d/*.json; do
 | ||
|           substituteInPlace "$js" --replace '"libEGL_' '"'"$drivers/lib/libEGL_"
 | ||
|         done
 | ||
| 
 | ||
|         # Update search path used by Vulkan (it's pointing to $out but
 | ||
|         # drivers are in $drivers)
 | ||
|         for js in $drivers/share/vulkan/icd.d/*.json; do
 | ||
|           substituteInPlace "$js" --replace "$out" "$drivers"
 | ||
|         done
 | ||
|       ''
 | ||
|       + lib.optionalString enableOpenCL ''
 | ||
|         # Move OpenCL stuff
 | ||
|         mkdir -p $opencl/lib
 | ||
|         mv -t "$opencl/lib/"     \
 | ||
|           $out/lib/gallium-pipe   \
 | ||
|           $out/lib/lib*OpenCL*
 | ||
| 
 | ||
|         # We construct our own .icd files that contain absolute paths.
 | ||
|         mkdir -p $opencl/etc/OpenCL/vendors/
 | ||
|         echo $opencl/lib/libMesaOpenCL.so > $opencl/etc/OpenCL/vendors/mesa.icd
 | ||
|         echo $opencl/lib/libRusticlOpenCL.so > $opencl/etc/OpenCL/vendors/rusticl.icd
 | ||
|       ''
 | ||
|       + lib.optionalString enableOSMesa ''
 | ||
|         # move libOSMesa to $osmesa, as it's relatively big
 | ||
|         mkdir -p $osmesa/lib
 | ||
|         mv -t $osmesa/lib/ $out/lib/libOSMesa*
 | ||
|       ''
 | ||
|       + lib.optionalString (vulkanLayers != []) ''
 | ||
|         mv -t $drivers/lib $out/lib/libVkLayer*
 | ||
|         for js in $drivers/share/vulkan/{im,ex}plicit_layer.d/*.json; do
 | ||
|           substituteInPlace "$js" --replace '"libVkLayer_' '"'"$drivers/lib/libVkLayer_"
 | ||
|         done
 | ||
|       ''
 | ||
|       + lib.optionalString haveDozen ''
 | ||
|         mkdir -p $spirv2dxil/{bin,lib}
 | ||
|         mv -t $spirv2dxil/lib $out/lib/libspirv_to_dxil*
 | ||
|         mv -t $spirv2dxil/bin $out/bin/spirv2dxil
 | ||
|       '';
 | ||
| 
 | ||
|     postFixup = lib.optionalString stdenv.isLinux ''
 | ||
|       # set the default search path for DRI drivers; used e.g. by X server
 | ||
|       for pc in lib/pkgconfig/{dri,d3d}.pc; do
 | ||
|         [ -f "$dev/$pc" ] && substituteInPlace "$dev/$pc" --replace "$drivers" "${libglvnd.driverLink}"
 | ||
|       done
 | ||
| 
 | ||
|       # remove pkgconfig files for GL/EGL; they are provided by libGL.
 | ||
|       rm -f $dev/lib/pkgconfig/{gl,egl}.pc
 | ||
| 
 | ||
|       # Move development files for libraries in $drivers to $driversdev
 | ||
|       mkdir -p $driversdev/include
 | ||
|       mv $dev/include/xa_* $dev/include/d3d* -t $driversdev/include || true
 | ||
|       mkdir -p $driversdev/lib/pkgconfig
 | ||
|       for pc in lib/pkgconfig/{xatracker,d3d}.pc; do
 | ||
|         if [ -f "$dev/$pc" ]; then
 | ||
|           substituteInPlace "$dev/$pc" --replace $out $drivers
 | ||
|           mv $dev/$pc $driversdev/$pc
 | ||
|         fi
 | ||
|       done
 | ||
| 
 | ||
|       moveToOutput bin/intel_clc $driversdev
 | ||
| 
 | ||
|       # Don't depend on build python
 | ||
|       patchShebangs --host --update $out/bin/*
 | ||
| 
 | ||
|       # NAR doesn't support hard links, so convert them to symlinks to save space.
 | ||
|       jdupes --hard-links --link-soft --recurse "$drivers"
 | ||
| 
 | ||
|       # add RPATH so the drivers can find the moved libgallium and libdricore9
 | ||
|       # moved here to avoid problems with stripping patchelfed files
 | ||
|       for lib in $drivers/lib/*.so* $drivers/lib/*/*.so*; do
 | ||
|         if [[ ! -L "$lib" ]]; then
 | ||
|           patchelf --set-rpath "$(patchelf --print-rpath $lib):$drivers/lib" "$lib"
 | ||
|         fi
 | ||
|       done
 | ||
|       # add RPATH here so Zink can find libvulkan.so
 | ||
|       ${lib.optionalString haveZink ''
 | ||
|         patchelf --add-rpath ${vulkan-loader}/lib $drivers/lib/dri/zink_dri.so
 | ||
|       ''}
 | ||
| 
 | ||
|       ${lib.optionalString enableTeflon ''
 | ||
|         moveToOutput lib/libteflon.so $teflon
 | ||
|       ''}
 | ||
|     '';
 | ||
| 
 | ||
|     env.NIX_CFLAGS_COMPILE = toString (
 | ||
|       lib.optionals stdenv.isDarwin [
 | ||
|         "-fno-common"
 | ||
|       ]
 | ||
|       ++ lib.optionals enableOpenCL [
 | ||
|         "-UPIPE_SEARCH_DIR"
 | ||
|         "-DPIPE_SEARCH_DIR=\"${placeholder "opencl"}/lib/gallium-pipe\""
 | ||
|       ]
 | ||
|     );
 | ||
| 
 | ||
|     passthru = {
 | ||
|       inherit (libglvnd) driverLink;
 | ||
|       inherit llvmPackages;
 | ||
| 
 | ||
|       libdrm =
 | ||
|         if withLibdrm
 | ||
|         then libdrm
 | ||
|         else null;
 | ||
| 
 | ||
|       tests = lib.optionalAttrs stdenv.isLinux {
 | ||
|         devDoesNotDependOnLLVM = stdenv.mkDerivation {
 | ||
|           name = "mesa-dev-does-not-depend-on-llvm";
 | ||
|           buildCommand = ''
 | ||
|             echo ${self.dev} >>$out
 | ||
|           '';
 | ||
|           disallowedRequisites = [llvmPackages.llvm self.drivers];
 | ||
|         };
 | ||
|       };
 | ||
|     };
 | ||
| 
 | ||
|     meta = {
 | ||
|       description = "Open source 3D graphics library";
 | ||
|       longDescription = ''
 | ||
|         The Mesa project began as an open-source implementation of the OpenGL
 | ||
|         specification - a system for rendering interactive 3D graphics. Over the
 | ||
|         years the project has grown to implement more graphics APIs, including
 | ||
|         OpenGL ES (versions 1, 2, 3), OpenCL, OpenMAX, VDPAU, VA API, XvMC, and
 | ||
|         Vulkan.  A variety of device drivers allows the Mesa libraries to be used
 | ||
|         in many different environments ranging from software emulation to
 | ||
|         complete hardware acceleration for modern GPUs.
 | ||
|       '';
 | ||
|       homepage = "https://www.mesa3d.org/";
 | ||
|       changelog = "https://www.mesa3d.org/relnotes/${version}.html";
 | ||
|       license = with lib.licenses; [mit]; # X11 variant, in most files
 | ||
|       platforms = lib.platforms.mesaPlatforms;
 | ||
|       badPlatforms = []; # Load bearing for libGL meta on Darwin.
 | ||
|       maintainers = with lib.maintainers; [primeos vcunat]; # Help is welcome :)
 | ||
|     };
 | ||
|   };
 | ||
| in
 | ||
|   self
 | 
