Option keywords can appear in either uppercase or lowercase, but you must specify the -q in lowercase. Some options have suboptions. You specify these with an equal sign following the -q option . The option -qattr with suboption full will produce an attribute listing of all identifiers in the program. The compilers available on AIX systems use a number of common conventional flag options.
Lowercase flags are different from their corresponding uppercase flags.
The compiler passes on those flags directed to ld at link-edit time. Some flag options have arguments that form part of the flag. You can specify flags that do not take arguments in one string. A flag option that takes arguments can be specified as part of a single string, but you can only use one flag that takes arguments, and it must be the last option specified. Take care not to specify two or more options in a single string if there is another option that uses that letter combination.