Defined in 4 files as a macro:
- external/bsd/am-utils/dist/include/am_defs.h, line 526 (as a macro)
- external/bsd/am-utils/dist/include/mount_headers1.h, line 133 (as a macro)
- external/bsd/wpa/dist/src/drivers/linux_wext.h, line 19 (as a macro)
- sys/compat/linux/common/linux_socket.h, line 33 (as a macro)