_PC_REC_MAX_XFER_SIZE  868 ext/etc/constdefs.h #if !defined(_PC_REC_MAX_XFER_SIZE)
_PC_REC_MAX_XFER_SIZE  870 ext/etc/constdefs.h #  define _PC_REC_MAX_XFER_SIZE _PC_REC_MAX_XFER_SIZE
_PC_REC_MAX_XFER_SIZE 1460 ext/etc/constdefs.h #if defined(_PC_REC_MAX_XFER_SIZE)
_PC_REC_MAX_XFER_SIZE 1461 ext/etc/constdefs.h     rb_define_const(mod, "PC_REC_MAX_XFER_SIZE", INTEGER2NUM(_PC_REC_MAX_XFER_SIZE));