The redoxer toolchain ships a prebuilt host LLVM built X86;AArch64;RISCV only.
Mesa resolves dependency('llvm', modules:[amdgpu,...]) against that host
llvm-config (COOKBOOK_HOST_SYSROOT), so radeonsi/radv AND the Intel iris/ANV
CLC precompile path fail and the whole desktop stack silently drops. The
binary prefix never regenerates that host LLVM, so add an idempotent pre-cook
hook (redbear-full only): if the toolchain llvm-config lacks AMDGPU, cook
host:llvm21 (recipe carries X86;AMDGPU;NVPTX) and splice its llvm-config +
libLLVM.so + AMDGPU headers/static libs into the toolchain, backing up the
originals first. Fails loudly; a no-op once AMDGPU is present.
vasilito
8a6d8ff2b7