--- a/usr/include/common_functions.h
+++ b/usr/include/common_functions.h
@@ -70,7 +70,7 @@
 #endif /* !__CUDACC_RTC__ */
 extern _CRTIMP __host__ __device__ __device_builtin__ __cudart_builtin__ clock_t __cdecl clock(void) __THROW;
 extern         __host__ __device__ __device_builtin__ __cudart_builtin__ void*   __cdecl memset(void*, int, size_t) __THROW;
-extern         __host__ __device__ __device_builtin__ __cudart_builtin__ void*   __cdecl memcpy(void*, const void*, size_t) __THROW;
+//extern         __host__ __device__ __device_builtin__ __cudart_builtin__ void*   __cdecl memcpy(void*, const void*, size_t) __THROW;
 #if !defined(__CUDACC_RTC__)
 }
 #endif /* !__CUDACC_RTC__ */