nanyu,
The command line arguments are aways the same at the same project (but if you change arguments options).
When you get some errors, you'll probably find'em at your source code, not at the command line arguments for gcc compiler.
So, if everything is all right, compilation will succeed, and you'll have the full command line options and it will alays be the same.
If compilation don't succeed, you must look at your code.
So, anyway, in your case, you don't need to look at the command line arguments.
[]'s