编译mesa时报错，请看一下。

Question

麒麟V10 SP1 Linux version 5.4.18-53 Ubuntu 9.3.0-10kylin2
报错信息：
Run-time dependency LLVM (modules: bitwriter, core, engine, executionengine, instcombine, mcdisassembler, mcjit, native, scalaropts, transformutils, coroutines, lto) found: NO (tried config-tool)
Looking for a fallback subproject for the dependency llvm
Subproject directory not found and llvm.wrap file not found
Subproject subprojects/llvm is buildable: NO (disabling)
Dependency llvm from subproject subprojects/llvm found: NO

meson.build:1861:2: ERROR: Problem encountered: The following drivers require LLVM: RadeonSI, SWR, Lavapipe. One of these is enabled, but LLVM is disabled.
什么原因？是缺少显卡驱动吗？

Answer 1

望采纳：
根据错误信息，可以看出错误的原因是系统没有安装LLVM（Low Level Virtual Machine），但是启用了LLVM需要的驱动（RadeonSI, SWR, Lavapipe）。因此，需要安装LLVM才能正常使用这些驱动。