[libc-commits] [libc] [libc] Fix missing sysroot path for kernel headers when crosscompiling (PR #99588)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

So when cross compiling, we should only look at the sysroot, and not /usr/include, right?

https://github.com/llvm/llvm-project/pull/99588