suggestion for cygwin gcc-3.2

[Gareth Pearce]

>This may generate some flames, so flame away if you want to.

Hmm I expected a few as well, but no replys - I better fix that at least.
>
>I don't know about anyone else, but there is one particular "feature"
>of the new gcc that is driving me crazy.  I refer to:
>
>"warning:  changing search order for system directory..."
I dislike this too, as you might of noticed already...
<snip>
>Therefore, I suggest that this warning be disabled by default and
>enabled only on a stricter warning level.  I ask here because I know
>it is useless to ask on the gcc list - seeing as how they're going to
>do it their way and the rest of us be damned.  If you need a patch, I
>will provide one.

Having read lots of discussion and the large levels of apathy, I agree 
mostly.

However I disagree over the best method of implementing this.
Here I present (re-present) my solution

1. Ignore all -I which are targeting system directories.
2. if -fallow-header-override then ignore rule 1 but dont warn.
3. if -Wheader-override then give warning in both case 1 and 2.

After all that discussion, they did convince me that -I targeting system 
directories is 'a bad thing(tm)' however their approach to dealing with it 
is very much non-userfriendly.  I believe my solution fixes that.

Gareth - who would rather Nicholas's method rather than nothing however.


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