_PC_SYNC_IO 913 ext/etc/constdefs.h #if !defined(_PC_SYNC_IO) _PC_SYNC_IO 915 ext/etc/constdefs.h # define _PC_SYNC_IO _PC_SYNC_IO _PC_SYNC_IO 1487 ext/etc/constdefs.h #if defined(_PC_SYNC_IO) _PC_SYNC_IO 1488 ext/etc/constdefs.h rb_define_const(mod, "PC_SYNC_IO", INTEGER2NUM(_PC_SYNC_IO));