B.2.125 -xpchstop=[file|<include>]

Use the -xpchstop=file option to specify the last include file of the viable prefix for the precompiled-header file. Using -xpchstop on the command line is equivalent to placing a hdrstop pragma after the first include-directive that references file in each of the source files that you specify with the cc command.

Use -xpchstop=<include> with -xpch-auto to create a precompiled-header file that is based on header files up through and including <include>. This flag overrides the default -xpch=auto behavior of using all header files that are contained in the entire viable prefix.

In the following example, the -xpchstop option specifies that the viable prefix for the precompiled-header file ends with the include of projectheader.h. Therefore, privateheader.h is not a part of the viable prefix.

example% cat a.c
     #include <stdio.h>
     #include <strings.h>
     #include "projectheader.h"
     #include "privateheader.h"
     .
     .
     .
example% cc -xpch=collect:foo.cpch a.c -xpchstop=projectheader.h -c

See also -xpch.