The Clang compiler frontend, ``clang -cc1``, supports two command line options
for generating and using PCH files.
-To generate PCH files using ``clang -cc1``, use the option :option:`-emit-pch`:
+To generate PCH files using ``clang -cc1``, use the option `-emit-pch`:
.. code-block:: bash
This option is transparently used by ``clang`` when generating PCH files. The
resulting PCH file contains the serialized form of the compiler's internal
representation after it has completed parsing and semantic analysis. The PCH
-file can then be used as a prefix header with the :option:`-include-pch`
+file can then be used as a prefix header with the `-include-pch`
option:
.. code-block:: bash
proportional to the amount of code actually used from the AST file, rather than
being proportional to the size of the AST file itself.
-When given the :option:`-print-stats` option, Clang produces statistics
+When given the `-print-stats` option, Clang produces statistics
describing how much of the AST file was actually loaded from disk. For a
simple "Hello, World!" program that includes the Apple ``Cocoa.h`` header
(which is built as a precompiled header), this option illustrates how little of