ref: a1bea530d1d28fb1ae27d50f56a2f5fb6c92e3a3 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; }