I can't believe I'm still removing K&R function declarations in 2024. https://github.com/picolibc/picolibc/commit/a93d02d88269e6bf22b1e6a5af801c044a7b73de
@keithp The K&R declarations are quaint, but the extant name mangling convention of mALLOc, fREe, pOSIx_mEMALIGn has real eyebrow raising opportunities too...