ref: f3f4111f3e9f9fec452c9550c9c2bb5905c2f09d dir: /sys/src/ape/lib/ap/plan9/sigpending.c/
#include <signal.h> /* * BUG: don't keep track of these */ int sigpending(sigset_t *set) { *set = 0; return 0; }