bug report : -save-temps and stdin

[Joseph S. Myers]

On Sun, 28 Oct 2012, Mike  Dupont wrote:

> is this known? should I report a bug? any ideas on fixing it, I might
> be able to do so, it should be simple.

I think the fix should be to give an early error message for compiling 
from stdin with -save-temps, and then stop the compilation because there's 
nowhere to save the intermediate files (given the lack of an input file 
name).

-- 
Joseph S. Myers
joseph@codesourcery.com