gcc merrily compiles empty files

[Martin v. Loewis]

> That's exactly what I get. Perhaps my point will be easier to understand
> if I put it into zen: the emptiness between the spokes is essential, but
> when you have emptiness where a spoke should be, the wheel should
> squeak.

It seems clear what you want. It is not clear *why* you want it,
though.  If you wanted to report a bug: Thanks for your report, it is
not a bug, but a feature. If you wanted to have that feature changed,
please have a look at

http://gcc.gnu.org/cgi-bin/fom.cgi?file=12

Regards,
Martin