timersub          124 third_party/libevent/evutil.h #define evutil_timersub(tvp, uvp, vvp) timersub((tvp), (uvp), (vvp))
timersub         2381 third_party/libusb/src/libusb/io.c 		timersub(next_timeout, &cur_tv, tv);
timersub          115 third_party/libusb/src/libusb/os/poll_windows.h #if !defined(timersub)
timersub          197 third_party/libusb/src/libusb/os/threads_windows.c 	timersub(&targ_time, &cur_time, &delta_time);