const syscall.EPROTONOSUPPORT

4 uses

	syscall (current package)
		zerrors_linux_amd64.go#L1289: 	EPROTONOSUPPORT = Errno(0x5d)

	net
		file_unix.go#L52: 		return nil, syscall.EPROTONOSUPPORT
		ipsock_posix.go#L40: 	case syscall.EAFNOSUPPORT, syscall.EPROTONOSUPPORT:
		mptcpsock_linux.go#L44: 	case errors.Is(err, syscall.EPROTONOSUPPORT): // Not supported: >= v5.6