This would do the trick I think:

$ gcc -fpreprocessed -dI -E test.c | grep -e "#include"

I have not tried with Microchip's compilers based on gcc though.

Tamas




On Tue, Aug 2, 2011 at 1:13 AM, William "Chops" Westfield <westfw@mac.com>w=
rote:

> Speaking of doing things to C source that involve at least partial
> parsing, are there any tools that will do a sort of "partial
> preprocessing" of C source code?
>
> In particular, I'd like to figure out all the files that are #included
> from the top-level code, after accounting for comments and such.
> A partial pre-processor that would strip comments and conditionally-
> compiled (not compiled) sections would be a good start (a FULL pre-
> processor would yield more than just the top level of includes, and I
> don't want it to actually have to know where those files are.  (the
> goal is to be able to build a list of include and library paths based
> 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
> are defined/redefined by the include files.  That would be asking too
> much...)
>
> Thanks
> Bill W
>
> --
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--=20
int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q;
printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }",
q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); }
--=20
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