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Date:      Mon, 12 Oct 2015 19:23:44 -0500
From:      Pedro Giffuni <pfg@FreeBSD.org>
To:        Justin Hibbits <jrh29@alumni.cwru.edu>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>, gerald@FreeBSD.org, mi@aldan.algebra.com
Subject:   Re: r288669 breaks ports building with USE_GCC=yes
Message-ID:  <561C4F10.7060206@FreeBSD.org>
In-Reply-To: <CAHSQbTC=SW8MOD63C=Gv8wqAWqyRrbpBeifo9HUfW98Sx8UJnA@mail.gmail.com>
References:  <CAHSQbTC1ReVYiwcd6HxbteOyDeOxt1_ydz3zcFR3_Loc_X748A@mail.gmail.com> <561C1523.7080200@FreeBSD.org> <561C17F2.2030206@FreeBSD.org> <CAHSQbTC=SW8MOD63C=Gv8wqAWqyRrbpBeifo9HUfW98Sx8UJnA@mail.gmail.com>

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On 10/12/2015 3:33 PM, Justin Hibbits wrote:
> Hi Pedro,
>
> On Mon, Oct 12, 2015 at 3:28 PM, Pedro Giffuni <pfg@freebsd.org> wrote:
>> Hi again;
>>
>> On 12/10/2015 03:16 p.m., Pedro Giffuni wrote:
>>> Hello;
>>>
>>> On 12/10/2015 02:56 p.m., Justin Hibbits wrote:
>>>> The default ports gcc for USE_GCC is still 4.8, which does not support
>>>> -fstack-protector-strong.  This breaks several ports including (from
>>>> my poudriere run): libfpx and qt4-sqlite3-plugin.
>>>>
>>>> - Justin
>>>
>>> r288669 only applies to base. It was tested with an exp-run and there were
>>> no
>>> failures so this is something wrong in your setup.
>>>
>> Ugh ... now that I remember, we actually used -stack-protector-all for the
>> exp-run
>> (which is supported in pretty much every gcc).
>>
>> Still, the change should only apply to the base system and not ports, and
>> -stack-protector-strong appears to have been backported to gcc48
>> last year (see PR 186852).
>>
>> cheers,
>>
>> Pedro.
>>
> All I can say is building with USE_GCC=yes, I see the following error:
>
> g++48: error: unrecognized command line option '-fstack-protector-strong'
>
> This is using the latest gcc48 in ports (full tree updated yesterday).

OK, I tested graphics/libfpx on i386-current:

-stack-protector-strong indeed gets pulled in due to some non-orthodox
workarounds in files/Makefile.bsd.

g++48 accepts it just fine and the port compiles.

Is this a platform that has GCC issues, perhaps? It looks like one of those
"unfortunately series of events" that may have to be fixed in the port
and/or gcc48.

Pedro.




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