ref: a9d4e5967cb7ddd34d2e6f0826ca6a38deb3b35f 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; }