[PATCH] [CMake/PPC64]: Add -mminimal-toc to CFLAGS if compiler is gcc < 4.6 on powerpc64

[Kai Nacke]

Hi! Does anybody from the CMake experts have a chance to look at this?

Thank you!

Regards
Kai

On 06.06.2013 12:08, Kai Nacke wrote:
> Hi Richard!
>
> I am using REHL6 (gcc 4.4.x) and Gentoo (gcc 4.5.x). In Gentoo, gcc >=
> 4.6 is available but marked as unstable.
>
> Regards
> Kai
>
> On 06.06.2013 10:19, Richard Sandiford wrote:
>> Hi Kai,
>>
>> Kai Nacke <kai.nacke at redstar.de> writes:
>>> On 01.06.2013 21:17, Kai Nacke wrote:
>>>> Hi!
>>>>
>>>> To compile LLVM with gcc < 4.6 on a powerpc64 platform you have to add
>>>> -mminimal-toc to CFLAGS / CXXFLAGS. Otherwise you get strange linker
>>>> errors.
>>
>> Just wondering, are you using Darwin?  In theory, this ought to have been
>> fixed for GNU/Linux in 4.2, but the fix was only ported to Darwin for
>> 4.6.
>>
>> Either way, I imagine most GNU/Linux users compiling 3.4 LLVM would be
>> using gcc >= 4.6 anyway, so the check looks reasonable to me.  I'm no
>> powerpc or cmake expert though, so that can't really count as a review...
>>
>> Thanks,
>> Richard
>>
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