Newlib 2.2.0 or lower version does not provide sys/select.h, and fd_set is defined in sys/types.h. It will be generated by scons automatically, and DO NOT change it.
Newlib 2.2.0 or lower version does not provide sys/select.h, and fd_set is defined in sys/types.h. It will be generated by scons automatically, and DO NOT change it.