Update mesa + spirv

[rhubert]

depends on BobBuildTool/basement#307

[jkloetzke]

This does not seem to build with the Linux blueprint:

$ bob dev --dev-sandbox amd64-glibc-busybox-wayland/ -j
...
Found pkg-config: YES (/mnt/2/jkloetzk/blueprint/dev/dist/devel/pkg-config-tool/x86_64-bob_compat-linux-gnu/1/workspace/usr/bin/pkg-config) 0.29.2
Found CMake: NO
Run-time dependency libva found: NO (tried pkgconfig and cmake)
Run-time dependency libclc found: NO (tried pkgconfig)

../../../../../../../../src/libs/mesa3d/1/workspace/meson.build:851:12: ERROR: Dependency "libclc" not found, tried pkgconfig

I guess some of the removed switches are still required?

[rhubert]

Thanks for testing blueprint. I just tested buildall-x86_64//*mesa3d-tgt...

I guess some of the removed switches are still required?

The switches are gone from meson.options. However we need to enable llvm and mesa_clc (at least) for llvmpipe (used by blueprint) and iris (used by us). Maybe there are more drivers requiring clc 🤷, so we might have to extend the list in the future..