cxref-cpp - A modified C preprocessor to use with cxref.
To improve the output that is available for the source code for cross-
referencing a modified version of the GNU CPP v2.7.2 is supplied (named
This modified C preprocessor allows for a finer control over some
features of the preprocessing that are not important for a compiler.
In a standard preprocessor, the preprocessor directives are intended
for use only by the preprocessor, so passing the information through is
With cxref-cpp, there are some features that are different to the
standard GNU CPP:
Compared to gcc versions earlier than version 2.8.0 there is an
extra option that will output the #include lines from the source
file. In version 2.8.0 and later this option is present.
Comments trailing a #include or a #define are not preserved by
all versions of gcc even if the -C option is used. This is not
important while compiling, but is useful for documenting.
The cxref-cpp program will take on the personality of the
installed version of gcc so that the gcc header files can be
parsed. This means that it includes the same default include
directory paths and macro definitions. The file that contains
these definitions is called cxref-cpp.defines and is installed
by the cxref-cpp-configure program or specified by the -cxref-
cpp-defines command line option.
The same as for gcc, apart from ’-cxref-cpp-defines’ described above.
cxref(1), cxref-cpp-configure(1), gcc(1)
May 9, 2004 cxref-cpp(1)