Speaking of doing things to C source that involve at least partial =20
parsing, are there any tools that will do a sort of "partial =20
preprocessing" of C source code?

In particular, I'd like to figure out all the files that are #included =20
from the top-level code, after accounting for comments and such.
A partial pre-processor that would strip comments and conditionally-=20
compiled (not compiled) sections would be a good start (a FULL pre-=20
processor would yield more than just the top level of includes, and I =20
don't want it to actually have to know where those files are.  (the =20
goal is to be able to build a list of include and library paths based =20
on the top-level includes that the user has typed.))

If I have:

> #define USEFLASHLIB 0
> #include <stdlib.h>
> #include "audio.h"
> // #include "futurelibrary.h"
> /*
>  * When this is finished, we'll want to use it instead
> #include "otherfuturelib.h>
>  */
> #if USEFLASHLIB
> #include "flashlib.h"
> #else
> #include <pic32/flash.h>
> #endif

I want to get:

> #include <stdlib.h>
> #include "audio.h"
> #include <pic32/flash.h>

(It OK if it assumes that none of the conditional compilation symbols =20
are defined/redefined by the include files.  That would be asking too =20
much...)

Thanks
Bill W

--=20
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