Fix preprocessor/5899

[Joseph S. Myers]

On Sun, 10 Mar 2002, Neil Booth wrote:

> I was getting fed up of duplicating the options documentation of CPP
> between CPP and GCC manuals.  I also promised to add environment
> variable docs to the CPP manual.  So I've split these common sections
> out into two new texi files, and documented SUNPRO_DEPENDENCIES while
> I was at it.  I also added @opindex to the CPP options.  The included
> texi files are slightly different depending upon whether they are in the
> GCC or CPP manuals, so I handle that conditional on the flag
> "cppmanual".  Do the docs look good to you Zack?

texi2pod.pl doesn't handle @include.  You'll need to fix that (and arrange
for cppmanual to be defined or undefined appropriately for the different
manpages generated).

-- 
Joseph S. Myers
jsm28@cam.ac.uk