[libc-commits] [libc] [libc] Include missing RISC-V stdlib.h and math.h entrypoints (PR #79034)

[Mikhail R. Gadelha via libc-commits]

mikhailramalho wrote:

> > No, we currently have a bit of a chicken-and-egg problem where we need these targets to build the SDK which we need to run unit tests on the target.
> 
> no worries, we also don't have a riscv32 buildbot set up yet, so we will be reliant on the results of your testing for now. We appreciate it (and need to consider more how to remedy the lack of buildbots for that target). Please send any fixups necessary (or file bugs).

We do have a rv32 buildbot on staging: https://lab.llvm.org/staging/#/builders/149 but it seems to be broken since the werror patch

I think the current error is that `-fuse-ld=lld` is being passed to `CMAKE_CXX_FLAGS` to `CMAKE_C_FLAGS`, instead of `LD_FLAGS`. After that there are some error of shortening 64-to-32

https://github.com/llvm/llvm-project/pull/79034