def auto_name_prefix(self):
<EOL>native_system = std_platform.system()<EOL>native_machine = self.CPU_ALIASES.get(std_platform.machine(), std_platform.machine())<EOL>if native_system == self.system and native_machine == self.machine:<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>platform = {<EOL>'<STR_LIT>': '<STR_LIT>',<EOL>'<STR_LIT>': '<STR_LIT>',<EOL>'<STR_LIT>': '<STR_LIT>',<EOL>}.get(self.gecko_platform, self.gecko_platform)<EOL>return platform + '<STR_LIT:->'<EOL>
Generate platform prefix for cross-platform downloads.