On Mon, Nov 19, 2012 at 11:22 AM, Stefan Schmidt <[email protected]> wrote:
> Hello.
>
> On 19/11/12 13:10, Enlightenment SVN wrote:
>> Log:
>> evas: Fix shadow warnings
>>
>>    x1, x2 shadow something in the math library.
>>
>>    Would probably be better to turn off -Wshadow, but for some
>>    reason people think this there's some value in it...
>
> I agree that the x1, x2, y1, etc warnings from the math lib are
> annoying. Sometimes the shadow warnings show problematic code though.
>
> I'm open for suggesting what warning flags we want to have as default
> for buildbot. If people agree (I know there is no such thing as
> universal agreement here on the list) that we should just skip -Wshadow
> I'm fine with changing the buildbot builds that way.


Use a compile that works fine with that option?  There's no reason for
a compiler to throw a warning if a variable named "x2" shadows a
function or another entity. gcc >= 4.7 seems to get this right (I'm
not sure which exactly version that became true, but I think it's gcc
4.7 indeed).

Related rant from Linus back in 2006: https://lkml.org/lkml/2006/11/28/239

However it seems to be fixed in gcc now, so I think we can let people
with older compilers to see the warnings and have the benefits brought
by -Wshadow



Lucas De Marchi

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