ref: 2dea7c2f8e55b4de0c79448c3ce03351a8f75e3b 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; }