- n_buildfix-21.3.0.patch
* fixes Mesa-drivers build

- update to 21.3.0
* Panfrost is now officially GLES 3.1 conformant
* RADV has (experimental) ray tracing support
* Iris gained threaded shader compilation
* Zink has seen an enormous amount of work, and now supports GLES 3.2
* Lavapipe has a bunch of new extensions, and now supports Vulkan 1.2
* LLVMpipe got 2-3 times faster for 2D workloads, and gained support for
the compatibility profile on GL 4.5
* VA-API gained support for AV1 videos
* EGL now works on Windows
* Wayland got a workaround for games making bad assumption (alpha means
transparency? who could have known)
* VK_EXT_color_write_enable on lavapipe
* GL_ARB_texture_filter_anisotropic in llvmpipe
* Anisotropic texture filtering in lavapipe
* VK_EXT_shader_atomic_float2 on Intel and RADV.
* VK_EXT_vertex_input_dynamic_state on RADV.
* VK_KHR_timeline_semaphore on lavapipe
* VK_EXT_external_memory_host on lavapipe
* GL_AMD_pinned_memory on llvmpipe
* GL 4.5 compatibility on llvmpipe
* VK_EXT_primitive_topology_list_restart on RADV and lavapipe.
* ES 3.2 on zink
* VK_KHR_depth_stencil_resolve on lavapipe
* VK_KHR_shader_integer_dot_product on RADV.
* OpenGL FP16 support on llvmpipe
* VK_KHR_shader_float16_int8 on lavapipe
* VK_KHR_shader_subgroup_extended_types on lavapipe
* VK_KHR_spirv_1_4 on lavapipe
* Experimental raytracing support on RADV
* VK_KHR_synchronization2 on Intel
* NGG shader based culling is now enabled by default on GFX10.3 on RADV.
* VK_KHR_maintenance4 on RADV
* VK_KHR_format_feature_flags2 on RADV.
* EGL_EXT_present_opaque on wayland