[OE-core] [PATCH] perl-native: Remove usage of -fstack-protector=strong

[Andre McCurdy]

>>> On 12/01/2016 04:39 PM, Khem Raj wrote:
>>>> On Thu, Dec 1, 2016 at 8:34 AM, Aníbal Limón
>>>> <anibal.limon at linux.intel.com> wrote:
>>>>> Some distributions (like opensuse421) supported by the project
>>>>> comes with older gcc releases, -fstack-protector=strong is supported
>>>>> by GCC>=4.9.
>>>>>
>>>>> This causes a build failure when install perl-native from a sstate that
>>>>> comes from a machine supporting -fstack-protector=strong [1].
>>>>>
>>>>> So disable usage of this flag in perl-native builds, this patch could
>>>>> be removed when all supported distros comes with GCC>=4.9.
>>>>
>>>> Instead of disabling it. Can it be made detectable during configure.
>>>
>>> The issue here is that comes from SSTATE mirror so the configure step
>>> isn't executed again when a other machine without
>>> -fstack-protector=strong download the sstate artifact was generate in
>>> other machine with -fstack-protector=strong support. This is only for
>>> native builds for target builds in enabled.
>>>
>>> We have similar patches for example in rpm,
>>>
>>> http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-devtools/rpm/rpm/popt-disable-auto-stack-protector.patch
>>
>> yeah I see, thanks, I guess we need to bring it down to lowest common
>> denominator I guess.
>> maybe we should start thinking about gcc-native
>>

Is it correct that native sstate from a host with gcc < 4.9 should be
reused by a host with gcc >= 4.9 ?

Doesn't the change in NATIVELSBSTRING prevent that from happening?