-cc_opt 'command

-cc_opt 'command_options'

Specifies additional options to be passed to the C compiler. You can add options to the command line used to invoke the C compiler independent of the -cc_cmd argument. The IDL compiler concatenates the -cc_cmd, -cc_opt, -I arguments and the source filename into a command that invokes the C compiler. This procedure is done for each generated stub or auxiliary file.