Re: cgcc and REAL_CC help

[rubisher <rubisher@scarlet.be>]

Hello Chris,

Chris Li wrote:
> On Fri, Dec 18, 2009 at 9:14 AM, rubisher <rubisher@scarlet.be> wrote:
>> That said, my next issue is that "-E" which is disable by cgcc:
>> [snip]
>>    # If someone adds "-E", don't pre-process twice.
>>    $do_compile = 0 if $_ eq '-E';
>> [snip]
>>
>> If ever some of you knows why, I would be interested in?
> 
> My guess is that, both gcc and sparse pre-process print to stdout.
> So allow them both pre-process will mess up the result.
> 
That was also my guess but when I comment out this line and run the same script one time with 'REAL_CC=gcc-4.4 cgcc' and the
second time with 'gcc-4.4' the results are the same, thought?

> The current cgcc chose to let sparse do the pre-process and don't
> run the real cc. You can make the gcc does the real pro-process and
> sparse just check though.
> 
Yes I think that I would have to do more effort to sparse this code.

Tx,
	J.

> Chris
>