ref: b012e1ab6a9a2c6a1478d8b9cf0672c865104b5a dir: /libc/runestrcat.c/
#include <u.h> #include <libc.h> Rune* runestrcat(Rune *s1, Rune *s2) { runestrcpy(runestrchr(s1, 0), s2); return s1; }