ref: d7613e356c55a3b7a1140a1f6d8aa6dca43b9d97 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; }