Specify Compiler Options on the Command Line Specify Batch Compiler Options on the Command Line Most options specified on the command line override both the default settings of the option and options set in the configuration file. Similarly, most options specified on the command line are in turn overridden by options set in the source file. Options that do not follow this scheme are listed in Resolving Conflicting Compiler Options . If the option is specified more than once, the last instance is recognized by the compiler. 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.