I just finished building #LLVM + #Clang on my #RISCV dev board! The entire process, from cloning the repo to building, linking, and installing, was all done natively on RISC-V!!
It took about 19 hours of work and 16 hours of having the puny quad-core in-order RISC-V CPU pinned at 100%, but the thing actually built successfully and is compiling and running programs. Insanely impressive stuff.