#ifndef _BITS_ERRNO_H #define _BITS_ERRNO_H #ifdef __cplusplus extern "C" { #endif #define ENOTSUP EOPNOTSUPP #define errno (*__errno_location()) #define program_invocation_name (*__program_invocation_name()) #define program_invocation_short_name (*__program_invocation_short_name()) #ifdef __cplusplus } // extern "C" #endif #endif /* _BITS_ERRNO_H */