mach_type_known 342 gc/include/private/gcconfig.h # if !defined(mach_type_known) && defined(__386BSD__) mach_type_known 405 gc/include/private/gcconfig.h # if defined(_UTS) && !defined(mach_type_known) mach_type_known 457 gc/include/private/gcconfig.h # ifndef mach_type_known