Build scope
- Extended-Compiles and link-edits all modules covered by NORMAL scope as
well as the Ada-type upward and downward dependencies.
- Limited-Compiles and link-edits all required modules directly referenced
by the specified architecture.
- Normal-Compiles and link-edits all modules covered by LIMITED scope as
well as the Ada-type upward dependencies.
- Subunit-Compiles and link-edits all modules covered by NORMAL scope as
well as the directly referenced Ada-type downward dependencies.