[oe] [RFT] GCC 6 Recipes

[Carlos Rafael Giani]

Something that concerns me is a note from 
https://gcc.gnu.org/gcc-6/changes.html :

"Value range propagation now assumes that the this pointer of C++ member 
functions is non-null. This eliminates common null pointer checks but 
also breaks some non-conforming code-bases (such as Qt-5, Chromium, 
KDevelop). As a temporary work-around -fno-delete-null-pointer-checks 
can be used. Wrong code can be identified by using -fsanitize=undefined."

Sounds like this has potential to break a significant number of packages.

On 04/18/2016 07:15 AM, Khem Raj wrote:
> Hello all,
>
> I have put together a potential gcc6 upgrade recipe set, and pushed the branch to tree here
>
>
> http://git.openembedded.org/openembedded-core-contrib/log/?h=kraj/gcc-6
>
> and also at github fork of mine.
>
> https://github.com/kraj/openembedded-core/tree/kraj/master
>
> You need to set
>
> GCCVERSION = “6.%”
>
> in local.conf to enable it.
>
>
> There are few recipes in OE-Core which still don’t compile e.g.
>
> see
>
> http://errors.yoctoproject.org/Errors/Build/14782/
>
> any help in fixing them or otherwise fixing other layers is appreciated.
>
> gcc6 is a major release for some info see
>
> https://gcc.gnu.org/gcc-6/changes.html
>
> and porting guide
>
> https://gcc.gnu.org/gcc-6/porting_to.html
>
>
> Thanks
>
> -Khem
>
>