Patch to remove pedantic ANSI warning for long long format when -Wno-long-long is supplied

[Martin v. Loewis]

> 	I got tired of looking at
> "warning: ANSI C does not support the `ll' length modifier"

So did I. Therefore, I put

__extension__ typedef long long verylargenumber;

into my source, and use that type throughout. Of course, you could
also put __extension__ in all places you care about. This looks like a
better approach to me: Tell, the compiler we *know* that we are using
an extension, and allow grepping for __extension__ if porting becomes
necessary.

Regards,
Martin