[Mesa-dev] [PATCH] nv50/ra: `isinf()` is in namespace `std` since C++11

[Jose Fonseca]

Pierre, I'm going to commit this one for now, as it seems the safest 
thing to do.

I still think we should try to fix the generic case, but it seems much 
harder to get this right.  I still don't understand how come isinf 
sometimes appears in the global namespace some times, but not others.

Jose

On 18/03/16 00:17, Pierre Moreau wrote:
> This fixes a compile error while building Nouveau with C++11 enabled (and
> glibc >= 2.23). This happens if SWR is enabled, as it forces C++11.
>
> Signed-off-by: Pierre Moreau <pierre.morrow at free.fr>
> ---
>   src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
> index 500ab89..1b595ae 100644
> --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
> +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
> @@ -1327,7 +1327,11 @@ GCRA::simplify()
>                  bestScore = score;
>               }
>            }
> +#if __cplusplus >= 201103L
> +         if (std::isinf(bestScore)) {
> +#else
>            if (isinf(bestScore)) {
> +#endif
>               ERROR("no viable spill candidates left\n");
>               break;
>            }
>