ref: b8ade0f0e74db49b8d1686e29a5d3dabb3a2d93b 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; }