_SC_SYNCHRONIZED_IO 263 ext/etc/constdefs.h #if !defined(_SC_SYNCHRONIZED_IO) _SC_SYNCHRONIZED_IO 265 ext/etc/constdefs.h # define _SC_SYNCHRONIZED_IO _SC_SYNCHRONIZED_IO _SC_SYNCHRONIZED_IO 1097 ext/etc/constdefs.h #if defined(_SC_SYNCHRONIZED_IO) _SC_SYNCHRONIZED_IO 1098 ext/etc/constdefs.h rb_define_const(mod, "SC_SYNCHRONIZED_IO", INTEGER2NUM(_SC_SYNCHRONIZED_IO));