[Buildroot] [PATCH 1/1] protobuf: apply patch to compile for PowerPC

[Carlos Santos]

> From: "Thomas Petazzoni" <thomas.petazzoni at free-electrons.com>
> To: "Carlos Santos" <casantos at datacom.ind.br>
> Cc: buildroot at buildroot.org
> Sent: Wednesday, February 10, 2016 6:13:16 PM
> Subject: Re: [Buildroot] [PATCH 1/1] protobuf: apply patch to compile for PowerPC

> Carlos,
> 
> On Wed, 10 Feb 2016 16:30:19 -0200 (BRST), Carlos Santos wrote:
> 
>> Henrique just warned me (offline) about the misunderstanding. The
>> "problem" here is that the patch on configure.ac would not be
>> accepted upstream, since their detection of the atomic operations
>> already works.
> 
> What? It certainly cannot work if they don't link against libatomic.
> Try on an architecture like SPARC, and you will see that if you don't
> link with libatomic, the build will fail.

I tried. It worked on SPARC (with the libatomic patch) but failed on SPARC64 due to a missing declaration of "Atomic64".

I guess their SPARC code aims Solaris, not Linux/buildroot.

Carlos Santos (Casantos)
DATACOM, P&D