[PATCH] [Polly] Add -std=c99 flag only to C source files

[Tobias Grosser]

On 06/29/2015 07:33 PM, Michael Kruse wrote:
> Hi grosser,
>
> Adding the flag to C++ source files emits a warning, hence we set the compile flag depending on the file's language.
>
> http://reviews.llvm.org/D10809

LGTM. Thank you.

Tobias