- On the command line, you sometimes also see a compiler switch such as
- ``-S``, used for controlling detailed aspects of how the compiler
- operates. Rather than do that here, we find it more convenient to
- place any necessary switches at the very top of the source file, as
- we'll explain in the next chapter.
+ On the command line, you sometimes also see a compiler :term:`switch`
+ such as :option:`-S`, used for controlling detailed aspects of how
+ the compiler operates. Rather than do that here, we find it more
+ convenient to place any necessary switches at the very top of the
+ source file, as we'll explain in the next chapter.