| Index: source/libvpx/vp9/common/vp9_systemdependent.h | 
| =================================================================== | 
| --- source/libvpx/vp9/common/vp9_systemdependent.h	(revision 228248) | 
| +++ source/libvpx/vp9/common/vp9_systemdependent.h	(working copy) | 
| @@ -23,8 +23,8 @@ | 
| #define vp9_clear_system_state() | 
| #endif | 
|  | 
| -#ifdef _MSC_VER | 
| -// round is not defined in MSVC | 
| +#if defined(_MSC_VER) && _MSC_VER < 1800 | 
| +// round is not defined in MSVC before VS2013. | 
| static int round(double x) { | 
| if (x < 0) | 
| return (int)ceil(x - 0.5); | 
|  |