ref: f2a4f349a8a68d1759c180b9edb77e3dfb67c6b4 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; }